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

        :root {
            --teal-900: #0b2027;
            --teal-800: #0f2b34;
            --teal-700: #004450;
            --teal-600: #00596c;
            --teal-500: #008b8b;
            --teal-400: #20b2aa;
            --teal-100: #e0f2fe;
            --teal-50: #e6f4f5;
            --teal-10: #eef5f7;
            --gray-bg: #f9fbfd;
            --gray-100: #f0f2f5;
            --gray-200: #edf2f7;
            --gray-300: #e2e8f0;
            --gray-400: #bdd4db;
            --gray-500: #6e8f9c;
            --text-primary: #1a1e2b;
            --text-secondary: #2c3e50;
            --text-tertiary: #3b4e62;
            --text-muted: #4a5a6e;
            --white: #ffffff;
            --shadow-sm: 0 1px 0 rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 25px 35px -12px rgba(0,0,0,0.2);
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.05);
            --radius-sm: 20px;
            --radius-md: 24px;
            --radius-lg: 32px;
            --radius-xl: 40px;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
            --transition-fast: 0.15s ease;
            --transition-smooth: 0.25s ease;
        }

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--white);
            color: var(--text-primary);
            line-height: 1.6;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* HEADER */
        .header {
            background: var(--white);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.96);
        }
        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 16px 0;
            gap: 14px;
        }
        .logo-area {
            display: flex;
            align-items: baseline;
            gap: 6px;
            flex-shrink: 0;
        }
        .logo {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #00596c 0%, #008b8b 60%, #20b2aa 100%);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            background: #20b2aa;
            border-radius: 50%;
            margin-left: 2px;
            animation: pulse-dot 2.2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,100%{ opacity:0.5; transform:scale(1); }
            50%{ opacity:1; transform:scale(1.7); }
        }
        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
            font-weight: 500;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            font-size: 0.95rem;
            position: relative;
            padding: 4px 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--teal-500);
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--teal-500);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .lang-btn {
            background: var(--gray-100);
            padding: 6px 16px;
            border-radius: var(--radius-xl);
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-primary);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .lang-btn:hover {
            background: var(--teal-50);
            border-color: var(--teal-500);
            color: var(--teal-600);
        }

        /* PAGE HERO */
        .page-hero {
            padding: 56px 0 40px;
            background: linear-gradient(160deg, #f9fbfd 0%, #edf2f7 30%, #e8f4f6 100%);
            border-bottom: 1px solid var(--gray-300);
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--teal-800);
            margin-bottom: 12px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .page-hero .hero-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        /* SECTION */
        .section {
            padding: 68px 0;
        }
        .section-alt {
            background: #fafbfc;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--teal-800);
            letter-spacing: -0.01em;
            text-align: center;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 48px;
            font-size: 1rem;
            line-height: 1.6;
        }
        .section-tag {
            display: block;
            text-align: center;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--teal-500);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        /* PAIN POINTS */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            margin-top: 24px;
        }
        .pain-card {
            background: white;
            border-radius: var(--radius-md);
            padding: 28px 22px;
            border: 1px solid #eef2f6;
            box-shadow: var(--shadow-card);
            text-align: center;
        }
        .pain-icon {
            font-size: 2.6rem;
            margin-bottom: 12px;
        }
        .pain-card h4 {
            color: var(--teal-800);
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 0.9rem;
            color: var(--text-tertiary);
        }

        /* CAPABILITY BLOCKS */
        .cap-block {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            border: 1px solid #eef2f6;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }
        .cap-block h3 {
            font-size: 1.5rem;
            font-weight: 650;
            color: var(--teal-800);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .cap-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 18px;
        }
        .cap-item {
            background: #f7fafb;
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid #eef2f6;
        }
        .cap-item h4 {
            color: var(--teal-700);
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .cap-item p {
            font-size: 0.85rem;
            color: var(--text-tertiary);
        }

        /* DEPLOYMENT CARDS */
        .deploy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 22px;
            margin-top: 24px;
        }
        .deploy-card {
            background: white;
            border-radius: var(--radius-md);
            padding: 26px 20px;
            border: 1px solid #eef2f6;
            box-shadow: var(--shadow-card);
            text-align: center;
        }
        .deploy-icon {
            font-size: 2.4rem;
            margin-bottom: 12px;
        }
        .deploy-card h4 {
            color: var(--teal-800);
            margin-bottom: 8px;
        }
        .deploy-card p {
            font-size: 0.88rem;
            color: var(--text-tertiary);
        }

        /* CTA BLOCK */
        .cta-block {
            background: linear-gradient(135deg, #00596c 0%, #004450 100%);
            border-radius: var(--radius-lg);
            padding: 44px 28px;
            text-align: center;
            color: white;
            margin-top: 24px;
        }
        .cta-block h3 {
            font-size: 1.7rem;
            margin-bottom: 12px;
            color: white;
        }
        .cta-block p {
            color: #cde4e9;
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-white {
            background: white;
            color: var(--teal-700);
            padding: 13px 32px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            text-decoration: none;
            display: inline-block;
            transition: background var(--transition-fast);
            font-size: 1rem;
        }
        .btn-white:hover {
            background: #eef5f7;
        }

        /* FOOTER */
        .footer {
            background: var(--teal-900);
            color: #cddfe6;
            padding: 52px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-col {
            min-width: 130px;
        }
        .footer-col h4 {
            color: white;
            margin-bottom: 16px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: #bdd4db;
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-col a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #2c4753;
            padding-top: 24px;
            font-size: 0.8rem;
            color: #8aacb8;
        }

        @media (max-width: 700px) {
            .page-hero h1 { font-size: 1.9rem; }
            .nav-links { gap: 14px; }
            .container { padding: 0 20px; }
        }