:root {
            --bg-primary: #0a0a0a;
            --bg-secondary: #141414;
            --bg-tertiary: #1a1a1a;
            --bg-subtle: #111111;
            --text-primary: #ffffff;
            --text-secondary: #a1a1aa;
            --text-muted: #71717a;
            --accent: #3b82f6;
            --accent-hover: #2563eb;
            --accent-soft: rgba(59, 130, 246, 0.1);
            --border-color: #27272a;
            --border-light: #1f1f1f;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
            --shadow-accent: 0 20px 40px rgba(59, 130, 246, 0.15);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-2xl: 24px;
            --font-display: 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', 'STSong', serif;
            --font-body: 'Source Han Sans SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 15, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
        }

        .nav-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.02em;
        }

        .nav-logo svg {
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 450;
            transition: color 0.15s;
            letter-spacing: -0.01em;
        }

        .nav-link:hover {
            color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: var(--bg-primary);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s;
            letter-spacing: -0.01em;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }

        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--bg-primary);
        }

        #wave-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            opacity: 0.5;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 860px;
            padding: 120px 32px 100px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 100px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            box-shadow: var(--shadow-xs);
            font-weight: 450;
            letter-spacing: -0.01em;
        }

        .hero-badge-dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 2.5s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.9); }
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(36px, 5.5vw, 58px);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
            letter-spacing: -0.03em;
        }

        .hero-title .gradient-text {
            display: inline;
            white-space: nowrap;
            background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .title-break {
            display: none;
        }

        @media (min-width: 640px) {
            .title-break {
                display: block;
            }
        }

        .hero-subtitle {
            font-size: clamp(20px, 2.5vw, 26px);
            color: var(--text-secondary);
            margin-bottom: 14px;
            font-weight: 450;
            letter-spacing: -0.02em;
        }

        .hero-description {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.7;
            letter-spacing: -0.01em;
        }

        .hero-cta {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px) scale(1.02);
            box-shadow: var(--shadow-accent);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        .logo-cloud {
            padding: 50px 32px;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .logo-cloud-container {
            max-width: 1100px;
            margin: 0 auto;
            text-align: center;
        }

        .logo-cloud-title {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 28px;
            font-weight: 500;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }

        .logo-grid {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 40px 56px;
            flex-wrap: wrap;
        }

        .logo-item {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
            opacity: 0.4;
            transition: all 0.3s;
            letter-spacing: -0.01em;
        }

        .logo-item:hover {
            opacity: 0.8;
            color: var(--text-secondary);
        }

        /* ===== Section Components ===== */
        .section-container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: clamp(32px, 4vw, 42px);
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.025em;
        }

        .section-title .gradient-text {
            background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto;
            letter-spacing: -0.01em;
        }

        /* ===== Features Section ===== */
        .features {
            padding: 90px 32px;
            background: var(--bg-primary);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            background: var(--accent-soft);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: #ffffff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Scenarios Section ===== */
        .scenarios {
            padding: 90px 32px;
            background: var(--bg-secondary);
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .scenario-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), #8b5cf6);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

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

        .scenario-card:hover::after {
            transform: scaleX(1);
        }

        .scenario-number {
            font-family: var(--font-display);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            opacity: 0.15;
            position: absolute;
            top: 16px;
            right: 24px;
            line-height: 1;
            transition: opacity 0.3s ease;
        }

        .scenario-card:hover .scenario-number {
            opacity: 0.3;
        }

        .scenario-card h3 {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
            padding-right: 60px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Value Props Section ===== */
        .value-props {
            padding: 90px 32px;
            background: var(--bg-primary);
        }

        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .value-item {
            text-align: center;
            padding: 24px;
            transition: transform 0.3s ease;
        }

        .value-item:hover {
            transform: translateY(-4px);
        }

        .value-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--accent-soft), rgba(139, 92, 246, 0.1));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            transition: all 0.3s ease;
        }

        .value-item:hover .value-icon {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
        }

        .value-item h3 {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .value-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
            margin: 0 auto;
        }

        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            max-width: 1000px;
            margin: 0 auto 64px;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-row.reverse {
            direction: rtl;
        }

        .feature-row.reverse > * {
            direction: ltr;
        }

        .feature-content h3 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.025em;
        }

        .feature-content > p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .feature-list {
            list-style: none;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .feature-list li::before {
            content: '';
            width: 18px;
            height: 18px;
            background: var(--accent-soft);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 1px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23647aa8'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
            background-size: 10px;
            background-position: center;
            background-repeat: no-repeat;
        }

        .feature-visual {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            padding: 48px;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-light);
        }

        .feature-visual-placeholder {
            text-align: center;
            color: var(--text-muted);
        }

        .feature-visual-placeholder svg {
            margin-bottom: 16px;
        }

        .feature-visual-placeholder p {
            font-size: 14px;
        }

        .value-props {
            padding: 90px 32px;
            background: var(--bg-secondary);
        }

        .value-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            max-width: 1000px;
            margin: 0 auto;
        }

        .value-content h3 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.025em;
        }

        .value-content > p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .value-list {
            list-style: none;
        }

        .value-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .value-list li::before {
            content: '';
            width: 18px;
            height: 18px;
            background: var(--accent-soft);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 1px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23f5f0e6'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
            background-size: 10px;
            background-position: center;
            background-repeat: no-repeat;
        }

        .value-visual {
            background: var(--bg-tertiary);
            border-radius: var(--radius-xl);
            padding: 48px;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-light);
        }

        .value-visual-placeholder {
            text-align: center;
            color: var(--text-muted);
        }

        .value-visual-placeholder svg {
            margin-bottom: 16px;
        }

        .value-visual-placeholder p {
            font-size: 14px;
        }

        .testimonials {
            padding: 90px 32px;
            background: var(--bg-primary);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all 0.25s;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }

        .testimonial-quote {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: normal;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 14px;
            color: var(--accent);
        }

        .testimonial-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .testimonial-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .faq {
            padding: 90px 32px;
            background: var(--bg-secondary);
        }

        .faq-list {
            max-width: 700px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-question {
            width: 100%;
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 550;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.15s;
            letter-spacing: -0.01em;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            transition: transform 0.25s;
            color: var(--text-muted);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 150px;
            padding-bottom: 22px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .cta {
            padding: 100px 32px;
            background: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
            text-align: center;
            border-top: 1px solid var(--border-light);
        }

        .cta-container {
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-title {
            font-family: var(--font-display);
            font-size: clamp(32px, 4vw, 42px);
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.025em;
        }

        .cta-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            letter-spacing: -0.01em;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--bg-primary);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-outline-dark:hover {
            background: var(--bg-tertiary);
            border-color: var(--text-secondary);
        }

        .footer {
            padding: 56px 32px 28px;
            background: var(--bg-primary);
            border-top: 1px solid var(--border-light);
        }

        .footer-container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr repeat(3, 1fr);
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand {
            max-width: 280px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
            text-transform: uppercase;
        }

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

        .footer-links li {
            margin-bottom: 11px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.15s;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-copyright a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-copyright a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 12px;
            transition: all 0.2s;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--bg-primary);
        }

        /* ===== Mobile Menu ===== */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0;
            z-index: 1001;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle span:nth-child(1) {
            transform: translateY(-6px);
        }

        .nav-toggle span:nth-child(3) {
            transform: translateY(6px);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(0) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-2px) rotate(-45deg);
        }

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

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.95);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-fade-in {
            animation: fadeIn 0.6s ease forwards;
        }

        .animate-scale-in {
            animation: scaleIn 0.5s ease forwards;
        }

        /* Stagger animation delays */
        .features-grid .feature-card:nth-child(1) { animation-delay: 0.1s; }
        .features-grid .feature-card:nth-child(2) { animation-delay: 0.2s; }
        .features-grid .feature-card:nth-child(3) { animation-delay: 0.3s; }
        .features-grid .feature-card:nth-child(4) { animation-delay: 0.4s; }

        .scenarios-grid .scenario-card:nth-child(1) { animation-delay: 0.1s; }
        .scenarios-grid .scenario-card:nth-child(2) { animation-delay: 0.2s; }
        .scenarios-grid .scenario-card:nth-child(3) { animation-delay: 0.3s; }

        .value-grid .value-item:nth-child(1) { animation-delay: 0.1s; }
        .value-grid .value-item:nth-child(2) { animation-delay: 0.2s; }
        .value-grid .value-item:nth-child(3) { animation-delay: 0.3s; }

        /* ===== Responsive Styles ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 900px) {
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-row,
            .value-card {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .feature-row.reverse {
                direction: ltr;
            }

            .feature-visual,
            .value-visual {
                order: -1;
            }

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

        @media (max-width: 640px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px 32px;
                gap: 20px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
            }

            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-link {
                font-size: 16px;
                padding: 8px 0;
            }

            .nav-cta {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }

            .hero-content {
                padding: 100px 24px 70px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .features,
            .scenarios,
            .value-props,
            .testimonials,
            .faq,
            .cta {
                padding: 70px 24px;
            }

            .hero-cta {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }

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

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

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

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }

            .scenario-card h3 {
                padding-right: 0;
            }

            .scenario-number {
                position: static;
                margin-bottom: 12px;
                opacity: 0.3;
            }
        }

        /* ===== Print Styles ===== */
        @media print {
            .nav,
            .nav-toggle,
            #wave-canvas,
            .hero-cta,
            .cta {
                display: none !important;
            }

            body {
                background: #fff;
                color: #000;
            }

            .section-title,
            .hero-title {
                color: #000;
                -webkit-text-fill-color: #000;
            }
        }

        /* ===== Focus States (Accessibility) ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* Skip to main content link */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: var(--accent);
            color: #fff;
            padding: 8px 16px;
            text-decoration: none;
            z-index: 10000;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: top 0.3s, opacity 0.3s, visibility 0.3s;
        }

        .skip-link:focus {
            top: 8px;
            left: 8px;
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }