:root {
            --ink-charcoal: #363533;
            --paper-warm: #f1efed;
            --paper-cream: #f8f5f2;
            --accent-pink: #f19997;
            --accent-yellow: #f8cb35;
            --accent-teal: #87ccc3;
            --seal-red: #c41e3a;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', sans-serif;
            background-color: var(--paper-warm);
            color: var(--ink-charcoal);
            line-height: 1.6;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Noto Serif SC', serif;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(241, 239, 237, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(54, 53, 51, 0.1);
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .nav-logo-icon {
            width: 40px;
            height: 40px;
            background: var(--ink-charcoal);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--paper-warm);
            font-weight: bold;
        }

        .nav-logo-text {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--ink-charcoal);
        }

        .nav-links {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--ink-charcoal);
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
            transition: color 0.3s;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--ink-charcoal);
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 100px 20px 60px;
            position: relative;
            overflow: hidden;
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(54, 53, 51, 0.05);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--ink-charcoal);
            margin-bottom: 24px;
        }

        .hero-badge::before {
            content: '✦';
            color: var(--accent-pink);
        }

        .hero-title {
            font-size: clamp(4rem, 10vw, 8rem);
            font-weight: 900;
            line-height: 1;
            margin-bottom: 16px;
            letter-spacing: -2px;
        }

        .hero-subtitle {
            font-size: clamp(1.2rem, 2.5vw, 1.8rem);
            color: var(--ink-charcoal);
            margin-bottom: 16px;
            font-weight: 500;
        }

        .hero-desc {
            font-size: 1rem;
            color: rgba(54, 53, 51, 0.7);
            max-width: 500px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-bottom: 40px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-value {
            font-family: 'Noto Serif SC', serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--ink-charcoal);
        }

        .stat-label {
            font-size: 0.8rem;
            color: rgba(54, 53, 51, 0.6);
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            padding: 14px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background: var(--ink-charcoal);
            color: var(--paper-warm);
        }

        .btn-primary:hover {
            background: #4a4845;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--ink-charcoal);
            border: 2px solid var(--ink-charcoal);
        }

        .btn-secondary:hover {
            background: var(--ink-charcoal);
            color: var(--paper-warm);
        }

        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .hero-portrait {
            width: 350px;
            height: 450px;
            background: linear-gradient(135deg, #e8e6e4 0%, #d4d2d0 100%);
            border-radius: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: 0 30px 60px rgba(54, 53, 51, 0.2);
            position: relative;
        }

        .portrait-circle {
            width: 120px;
            height: 120px;
            background: rgba(54, 53, 51, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .portrait-initial {
            font-family: 'Noto Serif SC', serif;
            font-size: 4rem;
            color: rgba(54, 53, 51, 0.4);
        }

        .portrait-name {
            font-size: 1rem;
            color: rgba(54, 53, 51, 0.5);
            margin-bottom: 8px;
        }

        .portrait-years {
            font-size: 0.85rem;
            color: rgba(54, 53, 51, 0.4);
        }

        .hero-badge-float {
            position: absolute;
            bottom: -20px;
            right: -20px;
            background: white;
            padding: 16px 20px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(54, 53, 51, 0.15);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .badge-icon {
            width: 40px;
            height: 40px;
            background: var(--seal-red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-family: 'Noto Serif SC', serif;
            font-weight: bold;
        }

        .badge-text {
            font-size: 0.9rem;
            font-weight: 500;
        }

        .badge-subtext {
            font-size: 0.75rem;
            color: rgba(54, 53, 51, 0.6);
        }

        /* Section Styles */
        .section {
            padding: 100px 20px;
        }

        .section-dark {
            background: var(--ink-charcoal);
            color: white;
        }

        .section-cream {
            background: var(--paper-cream);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 20px;
        }

        .section-badge-light {
            background: rgba(54, 53, 51, 0.05);
            color: var(--ink-charcoal);
        }

        .section-badge-dark {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
        }

        .section-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
            opacity: 0.7;
        }

        /* Renji Cards */
        .renji-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .renji-card {
            background: white;
            border-radius: 20px;
            padding: 32px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .renji-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(54, 53, 51, 0.15);
        }

        .renji-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .renji-card h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .renji-card .subtitle {
            font-size: 0.85rem;
            opacity: 0.6;
            margin-bottom: 16px;
        }

        .renji-card p {
            font-size: 0.95rem;
            opacity: 0.7;
            line-height: 1.7;
        }

        .renji-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
        }

        .renji-tag {
            padding: 6px 12px;
            background: var(--paper-warm);
            border-radius: 8px;
            font-size: 0.8rem;
            opacity: 0.8;
        }

        /* Tianji Cards */
        .tianji-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .tianji-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 32px;
            transition: all 0.3s ease;
        }

        .tianji-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .tianji-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 20px;
            background: rgba(255, 255, 255, 0.1);
        }

        .tianji-card h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .tianji-card .subtitle {
            font-size: 0.85rem;
            opacity: 0.6;
            margin-bottom: 16px;
        }

        .tianji-card p {
            font-size: 0.95rem;
            opacity: 0.7;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .tianji-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tianji-tag {
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            font-size: 0.8rem;
            opacity: 0.8;
        }

        /* Formula Cards */
        .formula-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .formula-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            transition: all 0.3s ease;
        }

        .formula-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(54, 53, 51, 0.15);
        }

        .formula-header {
            padding: 24px;
            position: relative;
        }

        .formula-category {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            margin-bottom: 12px;
        }

        .formula-card h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .formula-body {
            padding: 0 24px 24px;
        }

        .formula-desc {
            font-size: 0.9rem;
            opacity: 0.7;
            margin-bottom: 16px;
            line-height: 1.6;
        }

        .formula-ingredients {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .ingredient-tag {
            padding: 4px 10px;
            background: var(--paper-warm);
            border-radius: 6px;
            font-size: 0.75rem;
            opacity: 0.8;
        }

        /* Resource Cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .resource-card {
            background: white;
            border-radius: 20px;
            padding: 28px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            transition: all 0.3s ease;
        }

        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 15px 30px rgba(54, 53, 51, 0.12);
        }

        .resource-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .resource-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .resource-card p {
            font-size: 0.9rem;
            opacity: 0.6;
            margin-bottom: 16px;
        }

        .resource-items {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .resource-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 12px;
            background: var(--paper-warm);
            border-radius: 8px;
            font-size: 0.85rem;
        }

        .resource-count {
            padding: 2px 8px;
            border-radius: 10px;
            font-size: 0.7rem;
            font-weight: 500;
        }

        /* Timeline */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background: rgba(54, 53, 51, 0.1);
        }

        .timeline-item {
            display: flex;
            justify-content: flex-end;
            padding-right: 50%;
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item:nth-child(even) {
            justify-content: flex-start;
            padding-right: 0;
            padding-left: 50%;
        }

        .timeline-content {
            background: white;
            padding: 24px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            max-width: 300px;
            text-align: right;
        }

        .timeline-item:nth-child(even) .timeline-content {
            text-align: left;
        }

        .timeline-year {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-pink);
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .timeline-desc {
            font-size: 0.85rem;
            opacity: 0.6;
        }

        .timeline-dot {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 16px;
            background: var(--accent-pink);
            border: 4px solid white;
            border-radius: 50%;
            box-shadow: 0 2px 10px rgba(241, 153, 151, 0.4);
        }

        /* Students */
        .student-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }

        .student-card {
            background: white;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            transition: all 0.3s ease;
        }

        .student-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 15px 30px rgba(54, 53, 51, 0.12);
        }

        .student-avatar {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, rgba(248, 203, 53, 0.2), rgba(241, 153, 151, 0.2));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Noto Serif SC', serif;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .student-card h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }

        .student-title {
            font-size: 0.8rem;
            opacity: 0.5;
            margin-bottom: 12px;
        }

        .student-card p {
            font-size: 0.85rem;
            opacity: 0.7;
            margin-bottom: 12px;
        }

        .student-achievements {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .achievement-tag {
            padding: 4px 10px;
            background: var(--paper-warm);
            border-radius: 6px;
            font-size: 0.7rem;
            opacity: 0.8;
        }

        /* Footer */
        .footer {
            background: var(--ink-charcoal);
            color: white;
            padding: 80px 20px 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .footer-brand-icon {
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

        .footer-brand-text h3 {
            font-size: 1.2rem;
        }

        .footer-brand-text p {
            font-size: 0.75rem;
            opacity: 0.5;
        }

        .footer-desc {
            font-size: 0.9rem;
            opacity: 0.6;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-seal {
            width: 60px;
            height: 60px;
            border: 3px solid var(--seal-red);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 20px;
            transform: rotate(-5deg);
        }

        .footer-seal span {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            color: var(--seal-red);
            font-weight: bold;
        }

        .footer-column h4 {
            font-size: 1rem;
            margin-bottom: 20px;
            opacity: 0.9;
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column li {
            margin-bottom: 12px;
        }

        .footer-column a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

        .footer-column a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            opacity: 0.5;
        }

        .footer-heart {
            color: var(--accent-pink);
        }

        /* Quote */
        .quote-section {
            text-align: center;
            padding: 60px 20px;
        }

        .quote-box {
            background: white;
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            display: inline-block;
            max-width: 600px;
            position: relative;
        }

        .quote-box::before,
        .quote-box::after {
            font-family: 'Noto Serif SC', serif;
            font-size: 4rem;
            color: var(--accent-pink);
            opacity: 0.2;
            position: absolute;
        }

        .quote-box::before {
            content: '"';
            top: -10px;
            left: 20px;
        }

        .quote-box::after {
            content: '"';
            bottom: -30px;
            right: 20px;
        }

        .quote-text {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.3rem;
            font-style: italic;
            opacity: 0.8;
            line-height: 1.8;
        }

        .quote-author {
            margin-top: 20px;
            font-size: 0.9rem;
            opacity: 0.5;
        }

        /* Disclaimer */
        .disclaimer {
            text-align: center;
            padding: 20px;
            font-size: 0.8rem;
            opacity: 0.5;
        }

        /* Learning Path */
        .learning-path {
            background: white;
            border-radius: 20px;
            padding: 32px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            margin-top: 40px;
        }

        .learning-path-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
        }

        .learning-path-icon {
            width: 50px;
            height: 50px;
            background: rgba(241, 153, 151, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .learning-path h3 {
            font-size: 1.3rem;
        }

        .learning-path p {
            font-size: 0.9rem;
            opacity: 0.6;
        }

        .learning-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .learning-step {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            background: var(--paper-warm);
            border-radius: 10px;
        }

        .step-number {
            width: 24px;
            height: 24px;
            background: var(--ink-charcoal);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .step-name {
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* Video Banner */
        .video-banner {
            background: linear-gradient(135deg, var(--ink-charcoal), #4a4845);
            border-radius: 20px;
            padding: 40px;
            margin-top: 32px;
            position: relative;
            overflow: hidden;
            color: white;
        }

        .video-banner h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .video-banner p {
            opacity: 0.7;
            margin-bottom: 24px;
        }

        .video-banner-decoration {
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    pointer-events: none; /* 关键：让点击穿透装饰层 */
}

        .video-banner-decoration:first-child {
            top: -100px;
            right: -50px;
        }

        .video-banner-decoration:last-child {
            bottom: -100px;
            left: -50px;
        }

        /* Teachers Section */
        .teachers-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-bottom: 60px;
        }

        .teacher-card {
            background: white;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(54, 53, 51, 0.08);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .teacher-icon {
            width: 50px;
            height: 50px;
            background: rgba(135, 204, 195, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Noto Serif SC', serif;
            font-size: 1.2rem;
            color: var(--accent-teal);
            flex-shrink: 0;
        }

        .teacher-info h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }

        .teacher-title {
            font-size: 0.8rem;
            color: var(--accent-teal);
            margin-bottom: 8px;
        }

        .teacher-info p {
            font-size: 0.85rem;
            opacity: 0.6;
        }

        /* Dark section quote */
        .dark-quote {
            text-align: center;
            margin-top: 60px;
        }

        .dark-quote blockquote {
            position: relative;
            display: inline-block;
            max-width: 600px;
        }

        .dark-quote .quote-mark {
            font-family: 'Noto Serif SC', serif;
            font-size: 5rem;
            color: rgba(255, 255, 255, 0.1);
            position: absolute;
            line-height: 1;
        }

        .dark-quote .quote-mark:first-child {
            top: -30px;
            left: -30px;
        }

        .dark-quote .quote-mark:last-child {
            bottom: -50px;
            right: -30px;
        }

        .dark-quote p {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.4rem;
            opacity: 0.8;
            line-height: 1.8;
            font-style: italic;
        }

        .dark-quote .author {
            margin-top: 20px;
            opacity: 0.5;
        }

        /* Students tags in dark section */
        .students-tags {
            text-align: center;
            margin-top: 40px;
        }

        .students-tags p {
            font-size: 0.8rem;
            opacity: 0.4;
            margin-bottom: 16px;
        }

        .students-tags-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .student-tag {
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            font-size: 0.9rem;
            opacity: 0.7;
        }

        /* CTA Section */
        .cta-section {
            text-align: center;
            padding: 40px 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-stats {
                justify-content: center;
            }

            .hero-buttons {
                justify-content: center;
            }

            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-image {
                order: -1;
            }

            .hero-portrait {
                width: 280px;
                height: 360px;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item,
            .timeline-item:nth-child(even) {
                padding-left: 60px;
                padding-right: 0;
                justify-content: flex-start;
            }

            .timeline-content,
            .timeline-item:nth-child(even) .timeline-content {
                text-align: left;
                max-width: 100%;
            }

            .timeline-dot {
                left: 20px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

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

            .hero-title {
                font-size: 3.5rem;
            }

            .hero-stats {
                gap: 24px;
            }

            .stat-value {
                font-size: 2rem;
            }

            .section {
                padding: 60px 20px;
            }

            .section-title {
                font-size: 2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

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

            .learning-path-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }

        /* Scroll reveal */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }