/* roulang page: index */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin: 0 0 1em;
            color: var(--color-text-soft);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }
        .section {
            padding: 70px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }
        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }
        .section--gray {
            background-color: var(--color-bg-section);
        }
        .section--white {
            background-color: #ffffff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__header h2 {
            margin-bottom: 12px;
        }
        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }
        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }
        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
        }
        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-card-panel a i {
            font-size: 0.8rem;
            color: var(--color-text-light);
            transition: color var(--transition-fast);
        }
        .nav-card-panel a:hover {
            background: #ffffff;
            color: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }
        .nav-card-panel a:hover i {
            color: var(--color-primary);
        }
        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .nav-card-panel a.active i {
            color: #ffffff;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            border-radius: 24px;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-menu-toggle:hover {
            background: #f0f0f0;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #ffffff;
            z-index: 999;
            padding: 20px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-nav-overlay.is-open {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            text-decoration: none;
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border-light);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .mobile-nav-overlay .nav-cta-btn {
            text-align: center;
            justify-content: center;
            margin-top: 8px;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0a1f14 0%, #0d2b1a 30%, #0f361f 60%, #0a1f14 100%);
            color: #ffffff;
            overflow: hidden;
            padding: 60px 0 80px;
        }
        .hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }
        .hero__overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 40%, transparent 0%, rgba(10, 31, 20, 0.7) 70%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero__content h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: -0.03em;
        }
        .hero__content h1 span {
            color: var(--color-accent);
        }
        .hero__content .hero__sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero__stats {
            display: flex;
            gap: 28px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .hero__stat {
            text-align: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero__stat .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
        }
        .hero__stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        .hero__cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn--primary {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: 0 4px 18px rgba(240, 165, 0, 0.35);
        }
        .btn--primary:hover {
            background: #ffb820;
            color: #1a1a1a;
            box-shadow: 0 6px 24px rgba(240, 165, 0, 0.45);
            transform: translateY(-2px);
        }
        .btn--outline {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn--outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            transform: translateY(-2px);
        }
        .btn--green {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: 0 4px 18px rgba(26, 122, 58, 0.3);
        }
        .btn--green:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: 0 6px 24px rgba(26, 122, 58, 0.4);
            transform: translateY(-2px);
        }
        .btn--sm {
            padding: 9px 18px;
            font-size: 0.85rem;
            border-radius: 22px;
        }
        .btn--lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: 32px;
        }
        .hero__schedule-panel {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-xl);
            color: var(--color-text);
            position: relative;
            z-index: 3;
        }
        .hero__schedule-panel h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .hero__schedule-panel .panel-sub {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 18px;
        }
        .schedule-slots {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 18px;
        }
        .schedule-slot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 10px;
            flex-wrap: wrap;
        }
        .schedule-slot:hover {
            border-color: var(--color-primary);
            background: rgba(26, 122, 58, 0.03);
        }
        .schedule-slot.selected {
            border-color: var(--color-primary);
            background: rgba(26, 122, 58, 0.06);
            box-shadow: var(--shadow-sm);
        }
        .schedule-slot .slot-time {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary-dark);
            white-space: nowrap;
        }
        .schedule-slot .slot-match {
            font-weight: 600;
            font-size: 0.9rem;
            flex: 1;
            min-width: 100px;
        }
        .schedule-slot .slot-league {
            font-size: 0.75rem;
            color: var(--color-text-light);
            background: #f0f0f0;
            padding: 3px 10px;
            border-radius: 12px;
            white-space: nowrap;
        }
        .schedule-slot .slot-check {
            color: var(--color-primary);
            font-size: 1rem;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .schedule-slot.selected .slot-check {
            opacity: 1;
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid--3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid--4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }
        .card__img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card__body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card__body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card__body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            flex: 1;
            margin-bottom: 14px;
        }
        .card__tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(26, 122, 58, 0.07);
            color: var(--color-primary);
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card__link {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }
        .card__link:hover {
            gap: 8px;
            color: var(--color-primary-dark);
        }
        .card__link i {
            font-size: 0.7rem;
        }

        /* ========== ENTRY MATRIX ========== */
        .entry-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .entry-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            color: var(--color-text);
        }
        .entry-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-primary);
            color: var(--color-text);
        }
        .entry-card__icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(26, 122, 58, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: all var(--transition-base);
        }
        .entry-card:hover .entry-card__icon {
            background: var(--color-primary);
            color: #ffffff;
        }
        .entry-card__info h4 {
            margin: 0 0 4px;
            font-size: 1rem;
        }
        .entry-card__info p {
            margin: 0;
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== TIMELINE ========== */
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--color-border);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 3px solid #ffffff;
            box-shadow: 0 0 0 3px var(--color-primary);
            z-index: 1;
        }
        .timeline-item .time-label {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin: 0;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #ffffff;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 22px;
            border-bottom: 1px solid var(--color-border-light);
            transition: background var(--transition-fast);
            flex-wrap: wrap;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: #fafdfb;
        }
        .news-item__date {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            min-width: 80px;
            padding-top: 2px;
        }
        .news-item__content {
            flex: 1;
            min-width: 200px;
        }
        .news-item__content h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-item__content p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-item__content .btn--sm {
            font-size: 0.78rem;
        }

        /* ========== GUARANTEE ========== */
        .guarantee-icons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .guarantee-icon-item {
            padding: 24px 16px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .guarantee-icon-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .guarantee-icon-item i {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 12px;
        }
        .guarantee-icon-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .guarantee-icon-item p {
            font-size: 0.82rem;
            color: var(--color-text-light);
            margin: 0;
        }

        /* ========== APP SECTION ========== */
        .app-download-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: linear-gradient(135deg, #0d2b1a, #12522b);
            border-radius: var(--radius-xl);
            padding: 48px;
            color: #ffffff;
        }
        .app-download-area h2 {
            color: #ffffff;
            margin-bottom: 12px;
        }
        .app-download-area p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
        }
        .app-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .app-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 22px;
            background: #ffffff;
            color: #1a1a1a;
            border-radius: 28px;
            font-weight: 700;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .app-btn:hover {
            background: #e8f0ea;
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .app-btn i {
            font-size: 1.3rem;
        }
        .app-mockup {
            text-align: center;
        }
        .app-mockup img {
            max-width: 260px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            margin: 0 auto;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 18px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--color-text);
            transition: color var(--transition-fast);
            padding: 6px 0;
        }
        .faq-q:hover {
            color: var(--color-primary);
        }
        .faq-q i {
            transition: transform var(--transition-base);
            font-size: 0.8rem;
            color: var(--color-text-light);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            padding: 0 0;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 10px 0 6px;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-bubbles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-bubble {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-base);
        }
        .testimonial-bubble:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .testimonial-bubble::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 16px;
            font-size: 3rem;
            color: rgba(26, 122, 58, 0.1);
            font-weight: 800;
            line-height: 1;
            pointer-events: none;
        }
        .testimonial-bubble p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .testimonial-bubble .author {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-primary);
        }

        /* ========== STICKY CTA BAR ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #ffffff;
            border-top: 2px solid var(--color-primary);
            padding: 14px 20px;
            z-index: 998;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            transform: translateY(100%);
            transition: transform var(--transition-base);
        }
        .sticky-cta-bar.visible {
            transform: translateY(0);
        }
        .sticky-cta-bar span {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
        }
        .sticky-cta-bar .btn {
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1a10;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 30px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: var(--color-accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            align-items: center;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero__content h1 {
                font-size: 2.2rem;
            }
            .hero__schedule-panel {
                max-width: 500px;
                margin: 0 auto;
            }
            .card-grid--3,
            .card-grid--4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .entry-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-icons {
                grid-template-columns: repeat(2, 1fr);
            }
            .app-download-area {
                grid-template-columns: 1fr;
                padding: 32px;
                text-align: center;
            }
            .app-btns {
                justify-content: center;
            }
            .app-mockup img {
                max-width: 200px;
            }
            .testimonial-bubbles {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-card-panel {
                gap: 2px;
                padding: 4px 5px;
            }
            .nav-card-panel a {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .section {
                padding: 48px 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media screen and (max-width: 768px) {
            .nav-card-panel {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero {
                min-height: auto;
                padding: 40px 0 50px;
            }
            .hero__content h1 {
                font-size: 1.8rem;
            }
            .hero__content .hero__sub {
                font-size: 1rem;
            }
            .hero__stats {
                gap: 12px;
            }
            .hero__stat {
                padding: 10px 14px;
            }
            .hero__stat .stat-num {
                font-size: 1.4rem;
            }
            .card-grid,
            .card-grid--3,
            .card-grid--4 {
                grid-template-columns: 1fr;
            }
            .entry-matrix {
                grid-template-columns: 1fr;
            }
            .guarantee-icons {
                grid-template-columns: 1fr 1fr;
            }
            .testimonial-bubbles {
                grid-template-columns: 1fr;
            }
            .app-download-area {
                padding: 24px;
                border-radius: var(--radius-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .sticky-cta-bar {
                padding: 10px 14px;
                gap: 10px;
            }
            .sticky-cta-bar span {
                font-size: 0.85rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn--lg {
                padding: 13px 24px;
                font-size: 0.95rem;
            }
            .section {
                padding: 36px 0;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
            }
            .news-item__date {
                min-width: auto;
            }
            .hero__schedule-panel {
                padding: 20px;
            }
            .schedule-slot {
                padding: 10px 12px;
                gap: 6px;
            }
            .schedule-slot .slot-match {
                font-size: 0.8rem;
            }
        }
        @media screen and (max-width: 520px) {
            .hero__content h1 {
                font-size: 1.5rem;
            }
            .hero__stats {
                flex-direction: column;
                gap: 8px;
            }
            .hero__cta-group {
                flex-direction: column;
            }
            .hero__cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .guarantee-icons {
                grid-template-columns: 1fr;
            }
            .card-grid--3,
            .card-grid--4 {
                grid-template-columns: 1fr;
            }
            .entry-matrix {
                grid-template-columns: 1fr;
            }
            .testimonial-bubbles {
                grid-template-columns: 1fr;
            }
            .app-btns {
                flex-direction: column;
                align-items: center;
            }
            .app-btn {
                width: 100%;
                justify-content: center;
            }
            .sticky-cta-bar {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .sticky-cta-bar .btn {
                width: 100%;
                justify-content: center;
            }
            .btn {
                padding: 10px 16px;
                font-size: 0.85rem;
            }
            .section {
                padding: 28px 0;
            }
            h2 {
                font-size: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }
        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }
        .section--gray {
            background-color: var(--color-bg-section);
        }
        .section--white {
            background-color: #ffffff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__header h2 {
            margin-bottom: 12px;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
        }
        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }
        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }
        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
        }
        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-card-panel a:hover {
            background: #eaf5ed;
            color: var(--color-primary-dark);
        }
        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-sm);
        }
        .nav-card-panel a i {
            font-size: 0.85rem;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #1a1a1a;
            border-radius: 25px;
            font-weight: 700;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-menu-toggle:hover {
            background: #f0f0f0;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 25px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn--primary {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .btn--primary:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .btn--accent {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
        }
        .btn--accent:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .btn--outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn--outline:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-2px);
        }
        .btn--lg {
            padding: 15px 36px;
            font-size: 1.1rem;
            border-radius: 30px;
        }
        .btn--sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 20px;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            padding: 28px;
            transition: all var(--transition-base);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }
        .card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(26, 122, 58, 0.1);
            color: var(--color-primary);
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .card p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
        .card--featured {
            border-left: 4px solid var(--color-primary);
            background: #fafdfb;
        }

        /* ========== BADGE / TAG ========== */
        .badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .badge--green {
            background: rgba(26, 122, 58, 0.12);
            color: var(--color-primary);
        }
        .badge--accent {
            background: rgba(240, 165, 0, 0.15);
            color: #b87a00;
        }
        .badge--dark {
            background: rgba(255, 255, 255, 0.15);
            color: #ffffff;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            padding: 80px 0 70px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 31, 21, 0.88) 0%, rgba(13, 31, 21, 0.72) 50%, rgba(13, 31, 21, 0.85) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero__content {
            max-width: 640px;
        }
        .hero__content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .hero__content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .hero__countdown {
            display: flex;
            gap: 14px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .hero__countdown-item {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            text-align: center;
            min-width: 70px;
            backdrop-filter: blur(4px);
        }
        .hero__countdown-item .count-num {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1;
        }
        .hero__countdown-item .count-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }
        .hero__subscribe {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero__subscribe input {
            padding: 12px 18px;
            border-radius: 25px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            font-size: 0.95rem;
            min-width: 260px;
            outline: none;
            transition: border-color var(--transition-fast);
        }
        .hero__subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .hero__subscribe input:focus {
            border-color: var(--color-accent);
        }
        .hero__visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero__visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            max-width: 100%;
            border: 3px solid rgba(255, 255, 255, 0.2);
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            justify-content: center;
            text-align: center;
        }
        .stats-row .stat-item {
            flex: 1;
            min-width: 150px;
            padding: 20px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .stats-row .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }
        .stats-row .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 6px;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-base);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 3.5rem;
            color: var(--color-primary);
            opacity: 0.2;
            position: absolute;
            top: 10px;
            left: 18px;
            line-height: 1;
            font-family: Georgia, serif;
        }
        .testimonial-card p {
            font-style: italic;
            color: var(--color-text-soft);
            margin-bottom: 14px;
            padding-top: 10px;
            line-height: 1.7;
        }
        .testimonial-card .author {
            font-weight: 700;
            color: var(--color-text);
            font-size: 0.9rem;
        }
        .testimonial-card .author span {
            font-weight: 400;
            color: var(--color-text-light);
            font-size: 0.82rem;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text);
            font-size: 1.02rem;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--color-text-light);
            transition: transform var(--transition-fast);
        }
        .faq-item[open] summary {
            color: var(--color-primary);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #1e8c44 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== PAIN POINT BLOCK ========== */
        .pain-block {
            background: #fff5f5;
            border-left: 5px solid #e74c3c;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            padding: 24px 28px;
            margin-bottom: 20px;
            transition: all var(--transition-base);
        }
        .pain-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .pain-block h4 {
            color: #c0392b;
            font-weight: 700;
            margin-bottom: 4px;
            font-size: 1.05rem;
        }
        .pain-block p {
            color: var(--color-text-soft);
            margin: 0;
            font-size: 0.95rem;
        }

        /* ========== SOLUTION HIGHLIGHT ========== */
        .solution-highlight {
            background: #f0faf4;
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid #d5f0dd;
            transition: all var(--transition-base);
        }
        .solution-highlight:hover {
            box-shadow: var(--shadow-md);
        }
        .solution-highlight h3 {
            color: var(--color-primary-dark);
            font-weight: 700;
        }

        /* ========== FEATURE LIST ========== */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.98rem;
            color: var(--color-text-soft);
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .feature-list li i {
            color: var(--color-primary);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1810;
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 20px;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .site-footer h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer h4 i {
            color: var(--color-primary-light);
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .site-footer ul li a:hover {
            color: #ffffff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-card-panel {
                gap: 2px;
                padding: 4px 5px;
            }
            .nav-card-panel a {
                padding: 7px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .nav-card-panel a i {
                font-size: 0.75rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero__content h1 {
                font-size: 2rem;
            }
            .hero {
                min-height: 420px;
                padding: 50px 0;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section {
                padding: 50px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                border-radius: 0;
                padding: 12px 16px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--color-border-light);
                z-index: 999;
            }
            .nav-card-panel.open {
                display: flex;
            }
            .nav-card-panel a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
                justify-content: flex-start;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none !important;
            }
            .hero {
                min-height: auto;
                padding: 40px 0;
                text-align: center;
            }
            .hero__content {
                max-width: 100%;
            }
            .hero__content h1 {
                font-size: 1.7rem;
            }
            .hero__countdown {
                justify-content: center;
                gap: 8px;
            }
            .hero__countdown-item {
                min-width: 55px;
                padding: 10px 12px;
            }
            .hero__countdown-item .count-num {
                font-size: 1.5rem;
            }
            .hero__subscribe {
                justify-content: center;
                flex-direction: column;
            }
            .hero__subscribe input {
                min-width: 100%;
            }
            .hero__visual {
                margin-top: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stats-row {
                gap: 12px;
            }
            .stats-row .stat-item {
                min-width: 120px;
                padding: 14px;
            }
            .stats-row .stat-num {
                font-size: 2rem;
            }
            .section__header h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .section {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .site-logo {
                font-size: 1.2rem;
                gap: 6px;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
            .hero__content h1 {
                font-size: 1.4rem;
            }
            .hero__content p {
                font-size: 0.95rem;
            }
            .hero__countdown-item {
                min-width: 48px;
                padding: 8px 10px;
            }
            .hero__countdown-item .count-num {
                font-size: 1.3rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .btn--lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .card {
                padding: 18px;
            }
            .stats-row .stat-item {
                min-width: 100px;
                flex: 0 0 auto;
                width: 45%;
            }
            .stats-row {
                gap: 8px;
                justify-content: space-around;
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }
        .live-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #ff3b3b;
            animation: pulse-dot 1.5s ease-in-out infinite;
            margin-right: 6px;
            vertical-align: middle;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }

        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }

        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }

        .section--gray {
            background-color: var(--color-bg-section);
        }

        .section--white {
            background-color: #ffffff;
        }

        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section__header h2 {
            margin-bottom: 12px;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
        }

        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }

        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }

        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }

        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }

        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
            flex-wrap: wrap;
        }

        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-card-panel a:hover {
            background: rgba(26, 122, 58, 0.06);
            color: var(--color-primary);
        }

        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-sm);
        }

        .nav-card-panel a.active i {
            color: #ffffff;
        }

        .nav-card-panel a i {
            font-size: 0.85rem;
            color: var(--color-primary);
        }

        .nav-cta-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 1.3rem;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg-section);
        }

        .desktop-only {
            display: flex;
        }

        @media (max-width: 1024px) {
            .nav-card-panel {
                gap: 3px;
                padding: 4px 5px;
            }
            .nav-card-panel a {
                padding: 6px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .nav-card-panel a i {
                font-size: 0.75rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .site-logo {
                font-size: 1.25rem;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                border-radius: 0;
                border: none;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                gap: 4px;
                z-index: 999;
            }
            .nav-card-panel.is-open {
                display: flex;
            }
            .nav-card-panel a {
                width: 100%;
                padding: 10px 16px;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn--primary {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }

        .btn--primary:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn--accent {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
        }

        .btn--accent:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn--outline {
            background: transparent;
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn--outline:hover {
            background: var(--color-primary);
            color: #ffffff;
        }

        .btn--lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        .btn--sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .card--highlight {
            border: 2px solid var(--color-accent);
            box-shadow: var(--shadow-lg);
            background: #fffef9;
            position: relative;
        }

        .card--highlight::before {
            content: '推荐';
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--color-accent);
            color: #1a1a1a;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-sm);
        }

        .card--dark {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #ffffff;
        }

        .card__icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: rgba(26, 122, 58, 0.1);
            color: var(--color-primary);
        }

        .card__title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .card__desc {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== HERO ========== */
        .hero {
            padding: 80px 0 70px;
            position: relative;
            background: linear-gradient(170deg, #f8faf9 0%, #e8f2eb 40%, #dce8e0 100%);
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(26, 122, 58, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero__content {
            position: relative;
            z-index: 2;
        }

        .hero__title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: -0.03em;
            line-height: 1.3;
        }

        .hero__title span {
            color: var(--color-primary);
        }

        .hero__subtitle {
            font-size: 1.15rem;
            color: var(--color-text-light);
            margin-bottom: 32px;
            max-width: 600px;
            line-height: 1.7;
        }

        .hero__compare-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 40px;
            max-width: 900px;
        }

        @media (max-width: 768px) {
            .hero {
                padding: 50px 0 40px;
            }
            .hero__title {
                font-size: 1.8rem;
            }
            .hero__subtitle {
                font-size: 1rem;
            }
            .hero__compare-row {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: 28px;
            }
            .section {
                padding: 40px 0;
            }
            .section__header h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .stat-item__number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
        }

        .stat-item__label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item__number {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== FEATURE LIST ========== */
        .feature-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.95rem;
            color: var(--color-text-soft);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-list li i {
            color: var(--color-primary-light);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
        }

        .testimonial-card__quote {
            font-size: 1rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
            position: relative;
            padding-left: 20px;
            border-left: 3px solid var(--color-primary-light);
        }

        .testimonial-card__author {
            font-weight: 700;
            color: var(--color-text);
            font-size: 0.9rem;
        }

        .testimonial-card__role {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item__question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: #fafcfa;
            transition: background var(--transition-fast);
        }

        .faq-item__question:hover {
            background: #f2f7f3;
        }

        .faq-item__question i {
            transition: transform var(--transition-fast);
            color: var(--color-primary);
        }

        .faq-item__answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }

        .faq-item.is-open .faq-item__answer {
            display: block;
        }

        .faq-item.is-open .faq-item__question i {
            transform: rotate(180deg);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #1a8a3f 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.05rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.9rem;
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== PAGE-SPECIFIC ========== */
        .solution-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .solution-img-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .compare-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .compare-panel__item {
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            background: #ffffff;
        }

        .compare-panel__item--recommend {
            border: 2px solid var(--color-primary);
            background: #fafffb;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .compare-panel__item--recommend .compare-badge {
            position: absolute;
            top: -16px;
            left: 24px;
            background: var(--color-primary);
            color: #fff;
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .compare-panel__item h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .compare-panel__item ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .compare-panel__item ul li {
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-panel__item ul li i.fa-check {
            color: var(--color-primary-light);
        }

        .compare-panel__item ul li i.fa-times {
            color: #c0392b;
        }

        @media (max-width: 768px) {
            .compare-panel {
                grid-template-columns: 1fr;
            }
        }

        .brand-intro-block {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            line-height: 1.8;
            color: var(--color-text-soft);
        }

        .brand-intro-block h3 {
            color: var(--color-primary-dark);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .highlight-num {
            font-size: 3rem;
            font-weight: 900;
            color: var(--color-primary);
            letter-spacing: -0.03em;
            line-height: 1;
        }

        .highlight-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 4px;
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }

        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }

        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }

        .section--gray {
            background-color: var(--color-bg-section);
        }

        .section--white {
            background-color: #ffffff;
        }

        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section__header h2 {
            margin-bottom: 12px;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
        }

        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }

        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .section--dark .section__tag {
            background: rgba(255, 255, 255, 0.12);
            color: #a0d8b0;
        }

        .section--dark .section__header h2 {
            color: #ffffff;
        }

        .section--dark .section__header p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }

        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }

        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }

        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
            flex-wrap: wrap;
        }

        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-card-panel a:hover {
            background: rgba(26, 122, 58, 0.06);
            color: var(--color-primary);
        }

        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-sm);
        }

        .nav-card-panel a.active:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
        }

        .nav-card-panel a i {
            font-size: 0.85rem;
        }

        .nav-cta-btn {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #1a1a1a;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            font-size: 1.3rem;
            color: var(--color-text-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg-section);
            color: var(--color-primary);
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            font-family: inherit;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: var(--shadow-md);
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border-color: #ffffff;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .card__icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(26, 122, 58, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .card:hover .card__icon {
            background: var(--color-primary);
            color: #ffffff;
            transform: scale(1.05);
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .card p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== HERO ========== */
        .hero {
            padding: 80px 0;
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 31, 21, 0.88) 0%, rgba(13, 31, 21, 0.72) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero__content {
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }

        .hero__cover {
            flex: 0 0 320px;
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 20px;
            box-shadow: var(--shadow-xl);
            text-align: center;
            position: relative;
        }

        .hero__cover img {
            border-radius: var(--radius-md);
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .hero__cover-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--color-accent);
            color: #1a1a1a;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 14px;
            letter-spacing: 0.03em;
        }

        .hero__text {
            flex: 1;
            min-width: 280px;
            color: #ffffff;
        }

        .hero__text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }

        .hero__text .hero__subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .hero__toc {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero__toc h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero__toc ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .hero__toc ul li {
            color: rgba(255, 255, 255, 0.8);
            padding: 5px 0;
            padding-left: 20px;
            position: relative;
            font-size: 0.9rem;
        }

        .hero__toc ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--color-accent);
            font-weight: 700;
        }

        .hero__form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .hero__form input {
            flex: 1;
            min-width: 200px;
            padding: 13px 18px;
            border-radius: var(--radius-md);
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            font-size: 1rem;
            font-family: inherit;
            transition: all var(--transition-fast);
        }

        .hero__form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .hero__form input:focus {
            outline: none;
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 0 4px rgba(240, 165, 0, 0.15);
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 18px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .stat-card__number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-card__label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        .section--dark .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .section--dark .stat-card__number {
            color: var(--color-accent);
        }

        .section--dark .stat-card__label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-base);
            height: 100%;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .testimonial-card__quote {
            font-size: 1rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
            position: relative;
            padding-left: 20px;
        }

        .testimonial-card__quote::before {
            content: '"';
            position: absolute;
            left: 0;
            top: -6px;
            font-size: 2.5rem;
            color: var(--color-primary);
            font-weight: 800;
            line-height: 1;
            opacity: 0.4;
        }

        .testimonial-card__author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--color-text);
            font-size: 0.9rem;
        }

        .testimonial-card__author span {
            font-weight: 400;
            color: var(--color-text-light);
            font-size: 0.8rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            list-style: none;
            padding: 0;
        }

        .faq-list .accordion-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            list-style: none;
        }

        .faq-list .accordion-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-list .accordion-title {
            display: block;
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            cursor: pointer;
            position: relative;
            text-decoration: none;
            transition: all var(--transition-fast);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-list .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            transition: transform var(--transition-base);
            color: var(--color-primary);
            font-size: 0.85rem;
        }

        .faq-list .accordion-title[aria-expanded="true"]::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .faq-list .accordion-title:hover {
            color: var(--color-primary);
            background: rgba(26, 122, 58, 0.03);
        }

        .faq-list .accordion-content {
            padding: 0 24px 18px 24px;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-size: 0.95rem;
            display: none;
        }

        .faq-list .accordion-content.is-active {
            display: block;
        }

        .faq-list .accordion-item.is-active {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1a10;
            color: #ffffff;
            padding: 50px 0 30px;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .site-footer h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
        }

        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }

        /* ========== RESPONSIVE ========== */
        @media screen and (max-width: 1024px) {
            .nav-card-panel {
                gap: 2px;
                padding: 4px 5px;
            }
            .nav-card-panel a {
                padding: 6px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .nav-card-panel a i {
                font-size: 0.75rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero__cover {
                flex: 0 0 260px;
            }
            .hero__text h1 {
                font-size: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 50px 0;
            }
        }

        @media screen and (max-width: 768px) {
            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 10px 16px;
                gap: 4px;
                z-index: 999;
            }
            .nav-card-panel.is-open {
                display: flex;
            }
            .nav-card-panel a {
                padding: 12px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .hero__content {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }
            .hero__cover {
                flex: 0 0 auto;
                max-width: 280px;
                margin: 0 auto;
            }
            .hero__text h1 {
                font-size: 1.7rem;
            }
            .hero__form {
                flex-direction: column;
            }
            .hero__toc {
                text-align: left;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card__number {
                font-size: 2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                padding: 40px 0;
            }
            .section__header h2 {
                font-size: 1.5rem;
            }
            .card {
                padding: 20px;
            }
        }

        @media screen and (max-width: 520px) {
            .hero__text h1 {
                font-size: 1.45rem;
            }
            .hero__cover {
                max-width: 220px;
                padding: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 10px;
            }
            .stat-card__number {
                font-size: 1.6rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .section__header h2 {
                font-size: 1.35rem;
            }
            .faq-list .accordion-title {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-list .accordion-content {
                padding: 0 16px 14px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }

        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }

        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }

        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }

        .section--gray {
            background-color: var(--color-bg-section);
        }

        .section--white {
            background-color: #ffffff;
        }

        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section__header h2 {
            margin-bottom: 12px;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
        }

        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }

        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }

        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }

        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }

        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
        }

        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-card-panel a:hover {
            background: #e8f5ec;
            color: var(--color-primary);
        }

        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-sm);
        }

        .nav-card-panel a.active i {
            color: #ffffff;
        }

        .nav-card-panel a i {
            font-size: 0.85rem;
            color: var(--color-primary);
        }

        .nav-cta-btn {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(240, 165, 0, 0.3);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: #f0f0f0;
        }

        /* ========== HERO ========== */
        .hero-kv {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0a1a10 0%, #0d2b18 30%, #0a1f14 60%, #0d1f15 100%);
            overflow: hidden;
        }

        .hero-kv__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-kv__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 26, 16, 0.55) 0%, rgba(13, 31, 21, 0.8) 100%);
            z-index: 1;
        }

        .hero-kv__content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-kv__badge {
            display: inline-block;
            padding: 8px 18px;
            background: rgba(240, 165, 0, 0.2);
            border: 1px solid rgba(240, 165, 0, 0.4);
            color: #f0a500;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .hero-kv h1 {
            color: #ffffff;
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .hero-kv h1 span {
            color: #f0a500;
        }

        .hero-kv__subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.2rem;
            max-width: 600px;
            margin-bottom: 0;
            line-height: 1.6;
        }

        .hero-kv__countdown-row {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 28px;
            margin-bottom: 24px;
        }

        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 14px 22px;
            backdrop-filter: blur(6px);
        }

        .countdown-bar__label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .countdown-bar__timer {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .countdown-bar__unit {
            text-align: center;
        }

        .countdown-bar__num {
            display: block;
            background: #ffffff;
            color: #0d1f15;
            font-size: 1.4rem;
            font-weight: 800;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            min-width: 44px;
            text-align: center;
            line-height: 1;
        }

        .countdown-bar__sep {
            color: #f0a500;
            font-size: 1.4rem;
            font-weight: 700;
        }

        .countdown-bar__word {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.7rem;
            margin-top: 3px;
            text-align: center;
        }

        .hero-kv__btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: #f0a500;
            color: #0d1f15;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(240, 165, 0, 0.35);
            border: none;
            cursor: pointer;
        }

        .btn-hero-primary:hover {
            background: #d49000;
            color: #0d1f15;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.5);
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #ffffff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
        }

        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ========== CARDS ========== */
        .card-rank {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            height: 100%;
            position: relative;
        }

        .card-rank:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .card-rank__icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
        }

        .card-rank h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .card-rank p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        .card-rank__number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 3rem;
            font-weight: 900;
            color: rgba(26, 122, 58, 0.06);
            line-height: 1;
            pointer-events: none;
        }

        /* ========== RANKING TABLE ========== */
        .ranking-table-wrap {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
        }

        .ranking-table thead th {
            background: #0d1f15;
            color: #ffffff;
            padding: 14px 16px;
            font-size: 0.9rem;
            font-weight: 700;
            text-align: left;
            white-space: nowrap;
        }

        .ranking-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.95rem;
            vertical-align: middle;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: #f8fdf9;
        }

        .ranking-table .rank-num {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--color-primary);
            min-width: 40px;
        }

        .ranking-table .rank-num.top1 {
            color: #f0a500;
            font-size: 1.3rem;
        }

        .ranking-table .rank-num.top2 {
            color: #888;
            font-size: 1.2rem;
        }

        .ranking-table .rank-num.top3 {
            color: #b87333;
            font-size: 1.15rem;
        }

        .ranking-table .team-name {
            font-weight: 600;
            color: var(--color-text);
        }

        .ranking-table .stat-value {
            font-weight: 700;
            color: var(--color-primary-dark);
        }

        .badge-trend-up {
            display: inline-block;
            padding: 3px 8px;
            background: #e8f5e9;
            color: #1a7a3a;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }

        .badge-trend-down {
            display: inline-block;
            padding: 3px 8px;
            background: #fdecea;
            color: #c0392b;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            height: 100%;
            position: relative;
        }

        .testimonial-card__quote {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 18px;
            font-style: italic;
            position: relative;
            padding-left: 20px;
            border-left: 3px solid var(--color-primary-light);
        }

        .testimonial-card__author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card__avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .testimonial-card__name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text);
        }

        .testimonial-card__role {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item__question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text);
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-item__question:hover {
            background: #f8fdf9;
        }

        .faq-item__question i {
            color: var(--color-primary);
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-item__question i {
            transform: rotate(180deg);
        }

        .faq-item__answer {
            padding: 0 22px 18px;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-item__answer {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #0d1f15 0%, #125c2b 50%, #0d1f15 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover;
            opacity: 0.12;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            color: #ffffff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            background: #f0a500;
            color: #0d1f15;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(240, 165, 0, 0.4);
            border: none;
            cursor: pointer;
        }

        .btn-cta-large:hover {
            background: #d49000;
            color: #0d1f15;
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(240, 165, 0, 0.55);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1710;
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .site-footer h4 {
            color: #ffffff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .site-footer ul li a:hover {
            color: #f0a500;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #f0a500;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-card-panel {
                gap: 2px;
                padding: 4px 5px;
            }

            .nav-card-panel a {
                padding: 6px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }

            .nav-card-panel a i {
                font-size: 0.75rem;
            }

            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .hero-kv h1 {
                font-size: 2.2rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none !important;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 12px;
                border-radius: 0;
                border: none;
                border-bottom: 2px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 2px;
            }

            .nav-card-panel.mobile-open {
                display: flex;
            }

            .nav-card-panel a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }

            .hero-kv {
                min-height: 420px;
            }

            .hero-kv h1 {
                font-size: 1.8rem;
            }

            .hero-kv__subtitle {
                font-size: 1rem;
            }

            .countdown-bar {
                padding: 10px 14px;
                gap: 6px;
            }

            .countdown-bar__num {
                font-size: 1.1rem;
                padding: 4px 8px;
                min-width: 34px;
            }

            .section {
                padding: 44px 0;
            }

            .section__header h2 {
                font-size: 1.5rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 8px 10px;
                font-size: 0.8rem;
            }

            .hero-kv__btns {
                flex-direction: column;
            }

            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-kv {
                min-height: 360px;
            }

            .hero-kv h1 {
                font-size: 1.5rem;
            }

            .hero-kv__countdown-row {
                gap: 10px;
            }

            .countdown-bar {
                padding: 8px 10px;
            }

            .countdown-bar__num {
                font-size: 0.95rem;
                min-width: 28px;
                padding: 3px 6px;
            }

            .countdown-bar__label {
                font-size: 0.7rem;
            }

            .card-rank {
                padding: 18px 14px;
            }

            .card-rank h3 {
                font-size: 1rem;
            }

            .section__header h2 {
                font-size: 1.3rem;
            }

            .btn-cta-large {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--color-text);
            line-height: 1.35;
            font-weight: 700;
            margin-top: 0;
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }
        .section--dark p {
            color: rgba(255, 255, 255, 0.82);
        }
        .section--gray {
            background-color: var(--color-bg-section);
        }
        .section--white {
            background-color: #ffffff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__header h2 {
            margin-bottom: 12px;
        }
        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }
        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 4px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 5px 7px;
            border: 1px solid var(--color-border-light);
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 7px 12px;
            border-radius: var(--radius-md);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            background: transparent;
        }
        .nav-card-panel a i {
            font-size: 0.9rem;
            color: var(--color-text-light);
            transition: color var(--transition-fast);
        }
        .nav-card-panel a:hover {
            background: #e8f0ea;
            color: var(--color-primary-dark);
        }
        .nav-card-panel a:hover i {
            color: var(--color-primary);
        }
        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: 0 2px 8px rgba(26, 122, 58, 0.3);
        }
        .nav-card-panel a.active i {
            color: #ffffff;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(240, 165, 0, 0.25);
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #1a1a1a;
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.4);
            transform: translateY(-1px);
        }
        .nav-cta-btn i {
            font-size: 0.95rem;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: #f0f5f2;
        }
        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 1024px) {
            .nav-card-panel a {
                padding: 6px 9px;
                font-size: 0.8rem;
                gap: 3px;
            }
            .nav-card-panel a i {
                font-size: 0.78rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .site-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 820px) {
            .desktop-only {
                display: none;
            }
            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                gap: 2px;
                padding: 12px 16px;
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                align-items: stretch;
            }
            .nav-card-panel.mobile-open {
                display: flex;
            }
            .nav-card-panel a {
                padding: 10px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
                justify-content: flex-start;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .site-header .container {
                position: relative;
            }
        }
        @media (max-width: 520px) {
            .site-logo {
                font-size: 1.15rem;
                gap: 6px;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
            .nav-card-panel a {
                font-size: 0.88rem;
                padding: 9px 12px;
            }
        }

        /* ========== HERO ========== */
        .hero-team {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .hero-team::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 31, 21, 0.88) 0%, rgba(13, 31, 21, 0.65) 40%, rgba(26, 122, 58, 0.45) 100%);
            z-index: 1;
        }
        .hero-team__content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }
        .hero-team__title {
            color: #ffffff;
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 14px;
            line-height: 1.2;
        }
        .hero-team__subtitle {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            max-width: 600px;
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .hero-team__league-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }
        .hero-team__league-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.13);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 24px;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }
        .hero-team__league-tag:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.5);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }
        .hero-team__league-tag i {
            font-size: 0.85rem;
            opacity: 0.9;
        }
        .hero-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(240, 165, 0, 0.4);
            border: none;
        }
        .hero-cta-btn:hover {
            background: #ffb820;
            color: #1a1a1a;
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.55);
        }
        .hero-cta-btn i {
            font-size: 1.1rem;
        }
        @media (max-width: 768px) {
            .hero-team {
                min-height: 420px;
            }
            .hero-team__title {
                font-size: 2rem;
            }
            .hero-team__subtitle {
                font-size: 1rem;
            }
            .hero-team__league-tags {
                gap: 7px;
            }
            .hero-team__league-tag {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .hero-cta-btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .hero-team {
                min-height: 360px;
            }
            .hero-team__title {
                font-size: 1.6rem;
            }
            .hero-team__subtitle {
                font-size: 0.9rem;
            }
            .hero-team__league-tag {
                padding: 5px 10px;
                font-size: 0.75rem;
            }
            .hero-cta-btn {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
        }

        /* ========== PAIN POINTS ========== */
        .pain-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            text-align: center;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #f5c6c6;
        }
        .pain-card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: #fef2f2;
            border-radius: 50%;
            margin-bottom: 16px;
            font-size: 1.5rem;
            color: #c0392b;
        }
        .pain-card h4 {
            margin-bottom: 8px;
            font-weight: 700;
        }
        .pain-card p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ========== SOLUTION CARDS ========== */
        .solution-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .solution-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-primary-light);
        }
        .solution-card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: rgba(26, 122, 58, 0.08);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--color-primary);
        }
        .solution-card h4 {
            margin-bottom: 8px;
            font-weight: 700;
        }
        .solution-card p {
            color: var(--color-text-light);
            font-size: 0.93rem;
            margin-bottom: 0;
            flex-grow: 1;
        }

        /* ========== TEAM SHOWCASE ========== */
        .team-showcase-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .team-showcase-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .team-showcase-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .team-showcase-card__body {
            padding: 20px;
        }
        .team-showcase-card__body h4 {
            margin-bottom: 6px;
            font-weight: 700;
        }
        .team-showcase-card__body p {
            color: var(--color-text-light);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .team-showcase-card__stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }
        .team-showcase-card__stats span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .team-showcase-card__stats i {
            color: var(--color-primary);
            font-size: 0.8rem;
        }

        /* ========== RESULTS / DATA ========== */
        .stat-block {
            text-align: center;
            padding: 20px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-block__number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-block__label {
            font-size: 0.95rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            height: 100%;
            position: relative;
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 4rem;
            color: rgba(26, 122, 58, 0.12);
            position: absolute;
            top: 10px;
            left: 18px;
            line-height: 1;
            font-family: serif;
        }
        .testimonial-card__text {
            font-style: italic;
            color: var(--color-text-soft);
            margin-bottom: 16px;
            padding-top: 10px;
            font-size: 0.98rem;
            line-height: 1.7;
        }
        .testimonial-card__author {
            font-weight: 700;
            color: var(--color-text);
            font-size: 0.9rem;
        }
        .testimonial-card__role {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== PROCESS / STEPS ========== */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-item__number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: var(--color-primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
        }
        .step-item__content h4 {
            margin-bottom: 4px;
            font-weight: 700;
        }
        .step-item__content p {
            color: var(--color-text-light);
            font-size: 0.93rem;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item__question {
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text);
            background: #fafcfa;
            transition: background var(--transition-fast);
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-item__question:hover {
            background: #f0f5f2;
        }
        .faq-item__question i {
            transition: transform var(--transition-base);
            color: var(--color-primary);
            font-size: 0.9rem;
        }
        .faq-item__question.open i {
            transform: rotate(180deg);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item__answer.open {
            max-height: 300px;
            padding: 0 20px 18px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            box-shadow: var(--shadow-xl);
        }
        .cta-section h2 {
            color: #ffffff;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .cta-section .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 36px;
            background: #ffffff;
            color: var(--color-primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
            border: none;
        }
        .cta-section .cta-btn-large:hover {
            background: #f0f5f2;
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
            color: var(--color-primary-dark);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1810;
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer h4 {
            color: #ffffff;
            margin-bottom: 14px;
            font-weight: 700;
            font-size: 1rem;
        }
        .site-footer ul li {
            margin-bottom: 7px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .site-footer ul li a:hover {
            color: #ffffff;
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: center;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-3 {
            gap: 24px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .section__header {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 36px 0;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1a7a3a;
            --color-primary-dark: #125c2b;
            --color-primary-light: #28a745;
            --color-accent: #f0a500;
            --color-accent-dark: #d49000;
            --color-bg: #f8faf9;
            --color-bg-dark: #0d1f15;
            --color-bg-card: #ffffff;
            --color-bg-section: #f0f5f2;
            --color-text: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --color-text-light: #6b6b6b;
            --color-text-inverse: #ffffff;
            --color-border: #dde8e0;
            --color-border-light: #e8f0ea;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin-top: 0;
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }

        .section {
            padding: 70px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--color-text-inverse);
        }
        .section--dark p {
            color: rgba(255, 255, 255, 0.8);
        }
        .section--gray {
            background-color: var(--color-bg-section);
        }
        .section--white {
            background-color: #ffffff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section__header h2 {
            margin-bottom: 12px;
        }
        .section__header p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 680px;
            margin: 0 auto;
        }
        .section__tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }
        .site-logo:hover {
            color: var(--color-primary-dark);
            opacity: 0.85;
        }
        .site-logo i {
            font-size: 1.6rem;
            color: var(--color-primary);
        }
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f9fbfa;
            border-radius: var(--radius-lg);
            padding: 6px 8px;
            border: 1px solid var(--color-border-light);
        }
        .nav-card-panel a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-soft);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-card-panel a:hover {
            background: rgba(26, 122, 58, 0.06);
            color: var(--color-primary);
        }
        .nav-card-panel a.active {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: var(--shadow-sm);
        }
        .nav-card-panel a.active i {
            color: #ffffff;
        }
        .nav-card-panel a i {
            font-size: 0.85rem;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(240, 165, 0, 0.25);
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.35);
            transform: translateY(-1px);
        }
        .nav-cta-btn i {
            font-size: 0.85rem;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }
        .desktop-only {
            display: inline-flex;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            font-family: inherit;
            letter-spacing: 0.01em;
        }
        .btn--primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 122, 58, 0.25);
        }
        .btn--primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: 0 6px 22px rgba(26, 122, 58, 0.35);
            transform: translateY(-2px);
        }
        .btn--accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(240, 165, 0, 0.25);
        }
        .btn--accent:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 6px 22px rgba(240, 165, 0, 0.35);
            transform: translateY(-2px);
        }
        .btn--outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn--outline:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn--lg {
            padding: 15px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }
        .btn--white {
            background: #fff;
            color: var(--color-primary-dark);
            box-shadow: var(--shadow-md);
        }
        .btn--white:hover {
            background: #f0f5f2;
            color: var(--color-primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            padding: 28px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .card__title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .card__desc {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.65;
        }
        .card--highlight {
            border-left: 4px solid var(--color-primary);
            background: rgba(26, 122, 58, 0.02);
        }
        .card--image {
            padding: 0;
            overflow: hidden;
            border-radius: var(--radius-lg);
        }
        .card--image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .card--image .card__body {
            padding: 22px 24px;
        }

        /* ========== FLASH SALE HERO ========== */
        .flash-hero {
            background: linear-gradient(135deg, #0d1f15 0%, #1a3a25 40%, #0d2818 100%);
            color: var(--color-text-inverse);
            padding: 50px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .flash-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .flash-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(26, 122, 58, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .flash-hero .container {
            position: relative;
            z-index: 1;
        }
        .flash-banner {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 14px 24px;
            margin-bottom: 32px;
            backdrop-filter: blur(4px);
        }
        .flash-banner__icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            animation: pulse-icon 1.8s ease-in-out infinite;
        }
        @keyframes pulse-icon {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.2);
            }
        }
        .flash-banner__text {
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            flex: 1;
        }
        .flash-banner__countdown {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--color-accent);
            background: rgba(0, 0, 0, 0.3);
            padding: 8px 18px;
            border-radius: var(--radius-md);
            letter-spacing: 0.04em;
        }
        .flash-banner__countdown span {
            display: inline-block;
            min-width: 32px;
            text-align: center;
        }
        .flash-hero__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .flash-hero__content h1 {
            color: #fff;
            font-size: 2.4rem;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .flash-hero__content h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .flash-hero__content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .flash-hero__features {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }
        .flash-hero__features span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 0.9rem;
            color: #fff;
            font-weight: 500;
        }
        .flash-hero__features span i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }
        .flash-hero__card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-xl);
            color: var(--color-text);
            position: relative;
            overflow: hidden;
        }
        .flash-hero__card .hot-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: #e53935;
            color: #fff;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            animation: badge-glow 2s ease-in-out infinite;
        }
        @keyframes badge-glow {
            0%,
            100% {
                box-shadow: 0 0 8px rgba(229, 57, 53, 0.5);
            }
            50% {
                box-shadow: 0 0 20px rgba(229, 57, 53, 0.8);
            }
        }
        .flash-hero__card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            padding-right: 60px;
        }
        .flash-hero__card .price-row {
            display: flex;
            align-items: baseline;
            gap: 10px;
            margin-bottom: 16px;
        }
        .flash-hero__card .price-current {
            font-size: 2.2rem;
            font-weight: 800;
            color: #e53935;
        }
        .flash-hero__card .price-original {
            font-size: 1rem;
            color: #999;
            text-decoration: line-through;
        }
        .flash-hero__card .price-save {
            font-size: 0.85rem;
            background: #fff0f0;
            color: #e53935;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 600;
        }
        .flash-hero__card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }
        .flash-hero__card ul li {
            padding: 6px 0;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .flash-hero__card ul li i {
            color: var(--color-primary);
            font-size: 0.85rem;
        }

        /* ========== PAIN POINTS ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: #fcc;
            transform: translateY(-4px);
        }
        .pain-card__icon {
            font-size: 2.8rem;
            margin-bottom: 16px;
            display: block;
            color: #e57373;
        }
        .pain-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .pain-card p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ========== SOLUTION ========== */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .solution-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .solution-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .solution-content h2 {
            margin-bottom: 16px;
        }
        .solution-content p {
            color: var(--color-text-soft);
            font-size: 1.05rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .solution-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }
        .solution-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 1rem;
            color: var(--color-text-soft);
        }
        .solution-list li i {
            color: var(--color-primary);
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== FEATURE CARDS ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-primary);
        }
        .feature-card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(26, 122, 58, 0.08);
            color: var(--color-primary);
            font-size: 1.5rem;
            margin-bottom: 14px;
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-card__icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.1);
        }
        .feature-card h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.55;
        }

        /* ========== TOPIC LIST ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .topic-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .topic-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
            transform: translateX(4px);
        }
        .topic-item__avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .topic-item__info {
            flex: 1;
        }
        .topic-item__info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .topic-item__info p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin: 0;
        }
        .topic-item__meta {
            text-align: right;
            flex-shrink: 0;
        }
        .topic-item__meta .count {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 1.1rem;
        }
        .topic-item__meta .label {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition-base);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .stat-item__number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-item__label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 4rem;
            color: rgba(26, 122, 58, 0.12);
            position: absolute;
            top: 10px;
            left: 18px;
            line-height: 1;
            font-family: serif;
            pointer-events: none;
        }
        .testimonial-card__text {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .testimonial-card__author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card__author img {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
        }
        .testimonial-card__author strong {
            font-size: 0.95rem;
            display: block;
        }
        .testimonial-card__author span {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
            gap: 12px;
        }
        .faq-item .accordion-title:hover {
            background: #f9fbfa;
        }
        .faq-item .accordion-title i {
            transition: transform var(--transition-base);
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .faq-item.is-active .accordion-title i {
            transform: rotate(180deg);
        }
        .faq-item .accordion-content {
            padding: 0 22px 18px;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.is-active .accordion-content {
            display: block;
        }
        .faq-item.is-active {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a7a3a 0%, #125c2b 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn--white {
            font-size: 1.1rem;
            padding: 15px 36px;
            border-radius: var(--radius-lg);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0d1f15;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 28px;
            font-size: 0.9rem;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .flash-hero__grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .solution-image img {
                height: 280px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-card-panel {
                gap: 2px;
                padding: 4px 5px;
            }
            .nav-card-panel a {
                padding: 7px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .nav-card-panel a i {
                font-size: 0.75rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .section {
                padding: 48px 0;
            }
            .desktop-only {
                display: none !important;
            }
            .nav-card-panel {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px;
                border-radius: 0;
                border: none;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-card-panel.open {
                display: flex;
            }
            .nav-card-panel a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .flash-hero {
                padding: 36px 0 44px;
            }
            .flash-banner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 16px;
            }
            .flash-banner__countdown {
                font-size: 1.1rem;
                padding: 6px 12px;
            }
            .flash-hero__content h1 {
                font-size: 1.8rem;
            }
            .flash-hero__card {
                padding: 20px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .flash-hero__features {
                gap: 8px;
            }
            .flash-hero__features span {
                font-size: 0.8rem;
                padding: 6px 10px;
            }
        }

        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .flash-hero__card .price-current {
                font-size: 1.8rem;
            }
            .flash-hero__content h1 {
                font-size: 1.5rem;
            }
            .section__header h2 {
                font-size: 1.4rem;
            }
            .btn--lg {
                padding: 12px 24px;
                font-size: 1rem;
            }
        }