/* roulang page: index */
:root {
            --bg-deep: #06060e;
            --bg-primary: #0a0a16;
            --bg-secondary: #0f0f1f;
            --bg-card: #12122a;
            --bg-card-hover: #181835;
            --text-primary: #e8e8f0;
            --text-secondary: #b0b0c8;
            --text-muted: #6b6b88;
            --accent-cyan: #00e5ff;
            --accent-cyan-glow: #00e5ff66;
            --accent-purple: #8b5cf6;
            --accent-purple-glow: #8b5cf655;
            --accent-pink: #f472b6;
            --accent-green: #22d670;
            --accent-orange: #f59e0b;
            --border-subtle: #1e1e38;
            --border-glow: #00e5ff44;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 28px rgba(0, 229, 255, 0.18);
            --shadow-glow-purple: 0 0 28px rgba(139, 92, 246, 0.18);
            --shadow-glow-pink: 0 0 28px rgba(244, 114, 182, 0.15);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-display);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
        }
        :focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* Container */
        .container-page {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-page {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .container-page {
                padding: 0 12px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 22, 0.94);
            box-shadow: 0 2px 32px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-glow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            flex-shrink: 0;
        }
        .logo-text {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent-cyan);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 229, 255, 0.08);
        }
        .nav-cta-btn {
            padding: 9px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            padding: 6px;
            cursor: pointer;
            line-height: 1;
            transition: color var(--transition-fast);
        }
        .mobile-toggle:hover {
            color: var(--accent-cyan);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 15, 31, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                width: 100%;
            }
            .nav-cta-btn {
                margin-top: 8px;
                text-align: center;
                width: 100%;
                display: block;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-desktop-cta {
                display: none;
            }
        }
        @media (min-width: 769px) {
            .nav-mobile-cta {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 6, 14, 0.65) 0%, rgba(10, 10, 22, 0.82) 40%, rgba(6, 6, 14, 0.95) 100%);
            z-index: 1;
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 229, 255, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 60%, rgba(139, 92, 246, 0.07) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(244, 114, 182, 0.05) 0%, transparent 50%);
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            padding: 40px 20px;
        }
        .hero-badge {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--accent-cyan);
            margin-bottom: 24px;
            animation: pulse-badge 2.5s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
            }
            50% {
                box-shadow: 0 0 28px rgba(0, 229, 255, 0.45);
            }
        }
        .hero-title {
            font-size: 3.4rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 18px;
            line-height: 1.15;
            text-shadow: 0 0 60px rgba(0, 229, 255, 0.3);
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: none;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 36px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            box-shadow: 0 0 50px rgba(0, 229, 255, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-secondary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 229, 255, 0.06);
            color: #fff;
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.15);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-subtitle {
                font-size: 1.05rem;
            }
            .hero-section {
                background-attachment: scroll;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 26px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                max-width: 300px;
                text-align: center;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 90px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 44px 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .mb-12 {
            margin-bottom: 48px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== FEATURES CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
            opacity: 0;
            transition: opacity var(--transition-smooth);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow-cyan);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        .feature-icon.cyan {
            background: rgba(0, 229, 255, 0.12);
            color: var(--accent-cyan);
        }
        .feature-icon.purple {
            background: rgba(139, 92, 246, 0.12);
            color: var(--accent-purple);
        }
        .feature-icon.pink {
            background: rgba(244, 114, 182, 0.12);
            color: var(--accent-pink);
        }
        .feature-icon.green {
            background: rgba(34, 214, 112, 0.12);
            color: var(--accent-green);
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== COVER CARDS ========== */
        .cover-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .cover-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .cover-cards-grid {
                grid-template-columns: 1fr;
            }
        }
        .cover-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .cover-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-purple);
        }
        .cover-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .cover-card-body {
            padding: 18px 16px;
        }
        .cover-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .cover-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .cover-card-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 229, 255, 0.1);
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        /* ========== DATA / STATS ========== */
        .stats-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }
        .stats-overlay {
            position: absolute;
            inset: 0;
            background: rgba(6, 6, 14, 0.88);
            z-index: 1;
        }
        .stats-content {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-section {
                background-attachment: scroll;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        .stat-card {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--radius-lg);
            background: rgba(18, 18, 42, 0.7);
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(6px);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
            background: rgba(18, 18, 42, 0.9);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            font-family: var(--font-mono);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 520px) {
            .stat-number {
                font-size: 2.2rem;
            }
        }

        /* ========== LIVE SCORE BOARD ========== */
        .scoreboard-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 700px;
            margin: 0 auto;
        }
        .scoreboard-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
        }
        .scoreboard-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
            background: var(--bg-card-hover);
        }
        .scoreboard-item .team {
            flex: 1;
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
        }
        .scoreboard-item .team:last-of-type {
            text-align: right;
        }
        .scoreboard-item .score {
            font-size: 1.5rem;
            font-weight: 900;
            font-family: var(--font-mono);
            color: var(--accent-cyan);
            min-width: 60px;
            text-align: center;
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
        }
        .scoreboard-item .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-green);
            flex-shrink: 0;
            animation: blink-dot 1.2s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 8px var(--accent-green);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 2px var(--accent-green);
            }
        }
        .scoreboard-item .match-info {
            font-size: 0.78rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        @media (max-width: 520px) {
            .scoreboard-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 14px 16px;
            }
            .scoreboard-item .score {
                font-size: 1.2rem;
                min-width: 44px;
            }
            .scoreboard-item .team {
                font-size: 0.85rem;
            }
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }
        .step-card {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            position: relative;
            transition: all var(--transition-smooth);
        }
        .step-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-purple);
            transform: translateY(-2px);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: var(--shadow-glow-cyan);
        }
        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            background: none;
            border: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(6, 6, 14, 0.85);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .cta-input-group {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 13px 18px;
            border-radius: 26px;
            background: rgba(255, 255, 255, 0.06);
            border: 2px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-smooth);
        }
        .cta-input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
        }
        .cta-input::placeholder {
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .cta-section {
                background-attachment: scroll;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .cta-input-group {
                flex-direction: column;
                align-items: center;
            }
            .cta-input {
                width: 100%;
                max-width: 320px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
        }
        .footer-brand .footer-logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px var(--accent-cyan);
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 14px;
            }
            .footer-links {
                justify-content: center;
            }
        }

        /* ========== UTILITY ========== */
        .bg-dark-section {
            background: var(--bg-primary);
        }
        .bg-darker-section {
            background: var(--bg-deep);
        }
        .text-glow-cyan {
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.35);
        }
        .divider {
            width: 50px;
            height: 3px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
            margin: 0 auto 20px;
        }
        .divider-left {
            margin-left: 0;
        }