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

        :root {
            --gold: #f0a830;
            --gold-soft: #fcd89d;
            --gold-glow: rgba(240, 168, 48, 0.38);
            --bg-deep: #080a10;
            --bg-card: #11141e;
            --border-subtle: #232638;
            --text-primary: #fef7e8;
            --text-secondary: #c4b99a;
            --text-muted: #8b8068;
            --radius-lg: 28px;
            --radius-md: 18px;
            --radius-full: 50px;
            --transition-fast: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: #06080e;
            color: var(--text-primary);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            letter-spacing: 0.01em;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 26px;
        }

        /* Header 统一 */
        .header {
            background: rgba(8, 10, 16, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(240, 168, 48, 0.14);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 15px 0;
            gap: 16px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 750;
            letter-spacing: -0.8px;
            background: linear-gradient(130deg, #fcd89d, #f0a830, #d9750b);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
        }

        .logo::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            opacity: 0.5;
            border-radius: 1px;
        }

        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
            font-weight: 500;
            flex-wrap: wrap;
        }

        .nav-links a {
            text-decoration: none;
            color: #d5cdb8;
            transition: var(--transition-fast);
            font-size: 0.93rem;
            letter-spacing: 0.3px;
            white-space: nowrap;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width 0.25s ease;
            border-radius: 1px;
        }

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

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold-soft);
            text-shadow: 0 0 7px var(--gold-glow);
        }

        .btn-outline-gold {
            background: transparent;
            border: 1.5px solid var(--gold);
            color: var(--gold-soft);
            padding: 9px 22px;
            border-radius: var(--radius-full);
            font-weight: 550;
            transition: var(--transition-fast);
            cursor: pointer;
            font-size: 0.88rem;
            white-space: nowrap;
            text-decoration: none;
            display: inline-block;
            letter-spacing: 0.3px;
        }

        .btn-outline-gold:hover {
            background: rgba(240, 168, 48, 0.1);
            box-shadow: 0 0 18px var(--gold-glow);
            border-color: #fcd89d;
        }

        /* 页面hero */
        .page-hero {
            padding: 65px 0 35px;
            text-align: center;
            background: radial-gradient(ellipse at 50% 10%, #1a1810 0%, #080a10 70%);
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(to right, #fef9ee, #fcd89d);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 12px;
        }

        .page-hero .subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 620px;
            margin: 0 auto 16px;
            line-height: 1.6;
        }

        .badge-pill {
            background: rgba(240, 168, 48, 0.1);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(240, 168, 48, 0.35);
            padding: 6px 18px;
            border-radius: var(--radius-full);
            font-size: 0.76rem;
            font-weight: 550;
            display: inline-block;
            margin-bottom: 16px;
            color: var(--gold-soft);
            letter-spacing: 0.5px;
        }

        /* 平台卡片网格 */
        .platform-section {
            padding: 20px 0 50px;
        }

        .section-title {
            text-align: center;
            font-size: clamp(1.7rem, 3.2vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: #fef7e8;
        }

        .section-desc {
            text-align: center;
            color: #9b8f76;
            max-width: 620px;
            margin: 0 auto 36px;
            font-size: 0.96rem;
        }

        .platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .platform-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 26px 22px 24px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-fast);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .platform-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .platform-card:hover {
            border-color: #5c4a28;
            box-shadow: 0 18px 30px -12px rgba(240, 168, 48, 0.18);
            transform: translateY(-3px);
        }

        .platform-card:hover::before {
            opacity: 0.9;
        }

        .platform-icon {
            font-size: 2.7rem;
            display: block;
            margin-bottom: 10px;
        }

        .platform-card h3 {
            font-weight: 700;
            color: #f0e4cc;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .platform-card .system-info {
            color: #9b8f76;
            font-size: 0.82rem;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .platform-card .feature-list {
            list-style: none;
            color: #b0a58e;
            font-size: 0.83rem;
            text-align: left;
            margin: 10px 0 16px;
            padding-left: 4px;
        }

        .platform-card .feature-list li {
            padding: 3px 0 3px 16px;
            position: relative;
        }

        .platform-card .feature-list li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--gold);
            font-weight: 700;
            font-size: 0.7rem;
            top: 5px;
        }

        .btn-card-link {
            background: #1a1408;
            border: 1.5px solid var(--gold);
            color: #fef3d6;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 550;
            text-decoration: none;
            display: inline-block;
            font-size: 0.85rem;
            transition: var(--transition-fast);
        }

        .btn-card-link:hover {
            background: rgba(240, 168, 48, 0.12);
            box-shadow: 0 0 14px var(--gold-glow);
        }

        /* 同步体验区 */
        .sync-experience {
            padding: 50px 0;
            background: #090b14;
            border-top: 1px solid #151826;
            border-bottom: 1px solid #151826;
        }

        .sync-content {
            max-width: 800px;
            margin: 0 auto;
            color: #b0a58e;
            font-size: 0.93rem;
            line-height: 1.8;
        }

        .sync-content h3 {
            font-size: 1.2rem;
            font-weight: 650;
            color: #e8dcc4;
            margin-bottom: 10px;
        }

        .sync-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 16px 0;
        }

        .sync-tag {
            background: #0f111c;
            padding: 8px 18px;
            border-radius: 30px;
            border: 1px solid #1c2034;
            font-weight: 500;
            color: #d5c9a8;
            font-size: 0.84rem;
        }

        /* 推荐组合 */
        .combo-section {
            padding: 50px 0;
            background: #070910;
        }

        .combo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .combo-card {
            background: #0f111c;
            border-radius: 22px;
            padding: 24px 18px;
            border: 1px solid #1c2034;
            text-align: center;
            transition: var(--transition-fast);
        }

        .combo-card:hover {
            border-color: #4a3d28;
            background: #131621;
        }

        .combo-card .combo-icon {
            font-size: 2.4rem;
            display: block;
            margin-bottom: 8px;
        }

        .combo-card h4 {
            font-weight: 700;
            color: #e8dcc4;
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .combo-card p {
            color: #8e826e;
            font-size: 0.84rem;
        }

        /* 快速入口 */
        .quick-links {
            padding: 40px 0 60px;
            background: #080a10;
            text-align: center;
            border-top: 1px solid #151826;
        }

        .quick-links .link-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
        }

        .quick-link-pill {
            background: #0f111c;
            border: 1px solid #1c2034;
            border-radius: 40px;
            padding: 10px 24px;
            color: #d5c9a8;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition-fast);
            font-size: 0.88rem;
            letter-spacing: 0.3px;
        }

        .quick-link-pill:hover {
            border-color: #5c4a28;
            background: #131621;
            color: var(--gold-soft);
            box-shadow: 0 0 14px rgba(240, 168, 48, 0.2);
        }

        /* Footer 统一 */
        .footer {
            background: #030509;
            padding: 44px 0 24px;
            border-top: 1px solid #151826;
        }

        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 34px;
        }

        .footer-col h5 {
            font-weight: 600;
            color: #c8bc9e;
            margin-bottom: 9px;
            font-size: 0.87rem;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            color: #7a6f5a;
            text-decoration: none;
            font-size: 0.82rem;
            display: block;
            margin-bottom: 5px;
            transition: var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--gold-soft);
        }

        .copyright {
            text-align: center;
            margin-top: 36px;
            color: #4a4236;
            font-size: 0.76rem;
            letter-spacing: 0.3px;
        }

        @media (max-width: 780px) {
            .nav-links {
                gap: 14px;
                font-size: 0.82rem;
            }
            .platform-grid {
                grid-template-columns: 1fr;
            }
            .combo-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 480px) {
            .nav-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .container {
                padding: 0 14px;
            }
            .combo-grid {
                grid-template-columns: 1fr;
            }
            .platform-card,
            .combo-card {
                padding: 18px 14px;
            }
        }