/* roulang page: index */
:root {
            --color-bg: #0a1628;
            --color-surface: rgba(255, 255, 255, 0.06);
            --color-border: rgba(255, 255, 255, 0.12);
            --color-primary: #3b82f6;
            --color-primary-light: #60a5fa;
            --color-text: #e2e8f0;
            --color-text-weak: #94a3b8;
            --radius: 16px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --glow: 0 0 30px rgba(59, 130, 246, 0.45);
        }
        *,
        *::before,
        *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif; background: var(--color-bg); color: var(--color-text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: inherit; text-decoration: none; transition: color .2s; }
        img { max-width: 100%; display: block; }
        button, input, select, textarea { font-family: inherit; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .glass { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: var(--radius); backdrop-filter: blur(12px); }
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 15px; line-height: 1.4; transition: all .25s ease; border: none; cursor: pointer; }
        .btn-primary { background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; box-shadow: var(--glow); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 40px rgba(59, 130, 246, 0.65); }
        .btn-outline { background: transparent; border: 1px solid rgba(255, 255, 255, 0.25); color: #e2e8f0; }
        .btn-outline:hover { border-color: var(--color-primary-light); color: var(--color-primary-light); background: rgba(59, 130, 246, 0.1); }
        .btn-lg { padding: 16px 36px; font-size: 16px; }

        .section-pad { padding: 90px 0; }
        .section-head { text-align: center; max-width: 680px; margin: 0 auto 60px; }
        .section-head .tag { display: inline-block; padding: 6px 18px; border-radius: 30px; background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.3); color: var(--color-primary-light); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 18px; }
        .section-head h2 { font-size: 36px; line-height: 1.3; font-weight: 700; color: #fff; margin-bottom: 14px; }
        .section-head p { font-size: 15px; color: var(--color-text-weak); line-height: 1.8; }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 100; background: rgba(10, 22, 40, 0.85); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
        .header-main { display: flex; align-items: center; justify-content: space-between; gap: 20px; max-width: 1280px; margin: 0 auto; padding: 14px 24px; }
        .logo { display: flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 700; color: #fff; white-space: nowrap; }
        .logo-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, #3b82f6, #1d4ed8); display: flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4); }
        .header-search { flex: 1; max-width: 340px; display: flex; align-items: center; background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 50px; padding: 6px 6px 6px 18px; }
        .header-search input { flex: 1; background: transparent; border: none; outline: none; color: #e2e8f0; font-size: 14px; }
        .header-search button { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .2s; }
        .header-search button:hover { box-shadow: 0 0 16px rgba(59, 130, 246, 0.5); }
        .header-cta { padding: 10px 22px; border-radius: 50px; background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; font-size: 14px; font-weight: 600; box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3); transition: all .25s; white-space: nowrap; }
        .header-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(59, 130, 246, 0.5); }
        .header-tabs { display: flex; gap: 4px; max-width: 1280px; margin: 0 auto; padding: 0 24px; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
        .header-tabs::-webkit-scrollbar { display: none; }
        .header-tabs a { padding: 12px 20px; font-size: 14px; font-weight: 500; color: var(--color-text-weak); border-bottom: 2px solid transparent; white-space: nowrap; transition: all .2s; }
        .header-tabs a:hover { color: #fff; }
        .header-tabs a.active { color: var(--color-primary-light); border-bottom-color: var(--color-primary); }

        /* Hero */
        .hero { position: relative; padding: 100px 0 110px; overflow: hidden; background: #0a1628; }
        .hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.35; }
        .hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10, 22, 40, 0.95) 30%, rgba(10, 22, 40, 0.6) 100%); }
        .hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; }
        .hero-badge { display: inline-block; padding: 8px 20px; border-radius: 30px; background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.35); color: var(--color-primary-light); font-size: 13px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 24px; }
        .hero h1 { font-size: 38px; line-height: 1.3; font-weight: 700; color: #fff; margin-bottom: 20px; }
        .hero h1 span { background: linear-gradient(120deg, #60a5fa, #3b82f6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .hero-desc { font-size: 15px; color: rgba(226, 232, 240, 0.8); line-height: 1.9; margin-bottom: 28px; max-width: 540px; }
        .hero-stats { display: flex; gap: 36px; margin-top: 32px; flex-wrap: wrap; }
        .hero-stat { text-align: left; }
        .hero-stat .num { font-size: 28px; font-weight: 700; color: #fff; line-height: 1.2; }
        .hero-stat .label { font-size: 13px; color: var(--color-text-weak); margin-top: 4px; }
        .hero-form-wrap { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 20px; padding: 32px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: var(--shadow); }
        .hero-form-wrap h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 6px; }
        .hero-form-wrap .sub { font-size: 13px; color: var(--color-text-weak); margin-bottom: 22px; }
        .hero-form .field { margin-bottom: 14px; }
        .hero-form label { display: block; font-size: 13px; color: rgba(226, 232, 240, 0.8); margin-bottom: 6px; }
        .hero-form select, .hero-form input { width: 100%; padding: 12px 14px; border-radius: 10px; background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.15); color: #e2e8f0; font-size: 14px; outline: none; transition: all .2s; }
        .hero-form select:focus, .hero-form input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2); }
        .hero-form select option { background: #0d1e33; }
        .form-success { display: none; margin-top: 14px; padding: 12px 16px; border-radius: 10px; background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); color: #34d399; font-size: 13px; text-align: center; }

        /* KPI */
        .kpi-section { padding: 60px 0; background: #0d1e33; }
        .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
        .kpi-item { padding: 30px 20px; border-radius: var(--radius); background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08); transition: all .3s; }
        .kpi-item:hover { border-color: rgba(59, 130, 246, 0.3); transform: translateY(-4px); }
        .kpi-item .icon { font-size: 28px; color: var(--color-primary-light); margin-bottom: 14px; }
        .kpi-item .num { font-size: 36px; font-weight: 700; color: #fff; line-height: 1.1; }
        .kpi-item .num span { font-size: 18px; color: var(--color-text-weak); margin-left: 2px; }
        .kpi-item .label { font-size: 14px; color: var(--color-text-weak); margin-top: 8px; }

        /* News */
        .news-section { padding: 90px 0; }
        .news-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 44px; align-items: start; }
        .news-list .news-item { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.07); transition: all .2s; }
        .news-list .news-item:hover { padding-left: 8px; }
        .news-item .date { flex-shrink: 0; width: 56px; text-align: center; padding: 8px 10px; border-radius: 10px; background: rgba(59, 130, 246, 0.1); border: 1px solid rgba(59, 130, 246, 0.2); color: var(--color-primary-light); font-size: 13px; font-weight: 600; line-height: 1.3; }
        .news-item .title { font-size: 16px; font-weight: 500; color: #e2e8f0; line-height: 1.5; margin-bottom: 4px; transition: color .2s; }
        .news-item:hover .title { color: var(--color-primary-light); }
        .news-item .meta { font-size: 13px; color: var(--color-text-weak); }
        .news-side { display: flex; flex-direction: column; gap: 24px; }
        .side-card { display: flex; gap: 16px; padding: 16px; border-radius: var(--radius); background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); transition: all .3s; }
        .side-card:hover { border-color: rgba(59, 130, 246, 0.3); transform: translateX(4px); }
        .side-card img { width: 96px; height: 80px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
        .side-card .info h4 { font-size: 14px; color: #e2e8f0; line-height: 1.4; font-weight: 500; }
        .side-card .info .tag { display: inline-block; margin-top: 8px; font-size: 12px; color: var(--color-primary-light); background: rgba(59, 130, 246, 0.15); padding: 2px 10px; border-radius: 20px; }

        /* Service */
        .service-section { padding: 90px 0; background: #0d1e33; }
        .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .service-card { padding: 36px 28px; border-radius: 20px; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); transition: all .3s ease; }
        .service-card:hover { transform: translateY(-8px); border-color: rgba(59, 130, 246, 0.35); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3); }
        .service-card .icon { width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(37, 99, 235, 0.3)); display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--color-primary-light); margin-bottom: 20px; }
        .service-card h3 { font-size: 19px; color: #fff; font-weight: 600; margin-bottom: 12px; }
        .service-card p { font-size: 14px; color: var(--color-text-weak); line-height: 1.8; }

        /* Feature */
        .feature-section { padding: 90px 0; }
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .feature-card { padding: 34px 26px; border-radius: 20px; background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08); text-align: center; transition: all .3s; }
        .feature-card:hover { border-color: rgba(59, 130, 246, 0.3); transform: translateY(-4px); background: rgba(59, 130, 246, 0.05); }
        .feature-card .icon { font-size: 32px; color: var(--color-primary-light); margin-bottom: 16px; }
        .feature-card h3 { font-size: 18px; color: #fff; font-weight: 600; margin-bottom: 10px; }
        .feature-card p { font-size: 14px; color: var(--color-text-weak); line-height: 1.8; }

        /* Testimonial */
        .testimonial-section { padding: 90px 0; background: #0d1e33; }
        .testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .testimonial-card { padding: 28px; border-radius: 20px; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); position: relative; }
        .testimonial-card .stars { font-size: 14px; color: #f59e0b; margin-bottom: 14px; }
        .testimonial-card .quote { font-size: 14px; color: rgba(226, 232, 240, 0.85); line-height: 1.8; margin-bottom: 16px; font-style: italic; }
        .testimonial-card .author { font-size: 13px; color: var(--color-text-weak); font-weight: 500; }

        /* FAQ */
        .faq-section { padding: 90px 0; }
        .faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
        .faq-item { border-radius: 16px; background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.1); padding: 24px 28px; transition: all .3s; }
        .faq-item:hover { border-color: rgba(59, 130, 246, 0.3); }
        .faq-item summary { font-size: 16px; font-weight: 600; color: #e2e8f0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; list-style: none; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: '+'; font-size: 22px; font-weight: 300; color: var(--color-primary-light); transition: transform .3s; }
        .faq-item[open] summary::after { transform: rotate(45deg); }
        .faq-item .answer { margin-top: 14px; font-size: 14px; color: var(--color-text-weak); line-height: 1.8; }

        /* CTA */
        .cta-section { padding: 90px 0; position: relative; overflow: hidden; }
        .cta-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.3; }
        .cta-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10, 22, 40, 0.92), rgba(13, 30, 51, 0.85)); }
        .cta-box { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; text-align: center; padding: 60px 50px; border-radius: 28px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.15); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: var(--shadow); }
        .cta-box h2 { font-size: 32px; color: #fff; font-weight: 700; margin-bottom: 16px; }
        .cta-box p { font-size: 15px; color: rgba(226, 232, 240, 0.8); margin-bottom: 32px; line-height: 1.8; }
        .cta-box .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* Footer */
        .site-footer { background: #050d1a; padding: 60px 0 30px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
        .footer-main { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
        .footer-brand .logo { margin-bottom: 12px; }
        .footer-brand p { font-size: 13px; color: var(--color-text-weak); max-width: 360px; line-height: 1.7; }
        .footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
        .footer-col h4 { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: 14px; }
        .footer-col a { display: block; font-size: 13px; color: var(--color-text-weak); padding: 5px 0; transition: color .2s; }
        .footer-col a:hover { color: var(--color-primary-light); }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.07); padding-top: 24px; text-align: center; font-size: 13px; color: rgba(148, 163, 184, 0.6); }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner { grid-template-columns: 1fr; gap: 40px; }
            .hero h1 { font-size: 32px; }
            .kpi-grid { grid-template-columns: repeat(2, 1fr); }
            .news-layout { grid-template-columns: 1fr; }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .section-pad { padding: 60px 0; }
            .header-main { flex-wrap: wrap; }
            .header-search { order: 3; flex-basis: 100%; max-width: 100%; }
            .hero { padding: 70px 0 80px; }
            .hero h1 { font-size: 27px; }
            .section-head h2 { font-size: 28px; }
            .service-grid { grid-template-columns: 1fr; }
            .feature-grid { grid-template-columns: 1fr; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .cta-box { padding: 40px 24px; }
            .cta-box h2 { font-size: 25px; }
            .footer-main { flex-direction: column; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 23px; }
            .hero-stats { gap: 20px; }
            .kpi-item .num { font-size: 28px; }
            .header-tabs a { padding: 10px 14px; font-size: 13px; }
            .logo { font-size: 15px; }
            .logo-icon { width: 34px; height: 34px; font-size: 15px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0A1128;
            --primary-light: #122A5F;
            --primary-lighter: #1A3A7A;
            --accent: #00D4FF;
            --accent-deep: #7B61FF;
            --text-main: #0F172A;
            --text-muted: #64748B;
            --bg-light: #F1F5F9;
            --bg-white: #FFFFFF;
            --glass-bg: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.16);
            --radius: 16px;
            --shadow: 0 12px 40px rgba(0, 20, 40, 0.08);
            --shadow-lg: 0 24px 60px rgba(0, 20, 40, 0.18);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-white);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 双层导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 17, 40, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 14px 24px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #fff;
            font-weight: 700;
            font-size: 17px;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 0 22px rgba(0, 212, 255, 0.45);
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 4px 4px 4px 18px;
            border: 1px solid rgba(255, 255, 255, 0.10);
            flex: 0 1 320px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .header-search:focus-within {
            border-color: rgba(0, 212, 255, 0.5);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            width: 100%;
            font-size: 14px;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .header-search button {
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            border: none;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            color: #fff;
            cursor: pointer;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .header-search button:hover {
            transform: scale(1.08);
            box-shadow: 0 0 14px rgba(0, 212, 255, 0.35);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #fff;
            padding: 10px 24px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.22);
            transition: transform 0.3s, box-shadow 0.3s;
            white-space: nowrap;
        }
        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(0, 212, 255, 0.40);
        }
        .header-tabs {
            display: flex;
            gap: 6px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px 10px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .header-tabs::-webkit-scrollbar {
            display: none;
        }
        .header-tabs a {
            padding: 8px 20px;
            border-radius: 999px;
            color: rgba(255, 255, 255, 0.62);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            white-space: nowrap;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .header-tabs a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .header-tabs a.active {
            color: #fff;
            background: rgba(0, 212, 255, 0.14);
            border-color: rgba(0, 212, 255, 0.30);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.12);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 0 28px rgba(0, 212, 255, 0.30);
            transition: transform 0.3s, box-shadow 0.3s;
            text-decoration: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 48px rgba(0, 212, 255, 0.50);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 600;
            backdrop-filter: blur(8px);
            transition: all 0.3s;
            text-decoration: none;
        }
        .btn-ghost:hover {
            border-color: rgba(0, 212, 255, 0.6);
            background: rgba(0, 212, 255, 0.08);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.15);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 玻璃拟态 ===== */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
        }

        /* ===== 通用区块 ===== */
        .section-pad {
            padding: 90px 0;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 28px;
            }
            .section-pad {
                padding: 60px 0;
            }
        }

        /* ===== Hero ===== */
        .hero-category {
            position: relative;
            min-height: 680px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 17, 40, 0.92) 0%, rgba(18, 42, 95, 0.78) 50%, rgba(10, 17, 40, 0.55) 100%);
        }
        .hero-overlay-grid {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
                radial-gradient(circle at 80% 70%, rgba(123, 97, 255, 0.15) 0%, transparent 60%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 120px 0 80px;
            max-width: 820px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.16);
            border: 1px solid rgba(0, 212, 255, 0.35);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }
        .hero-content h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero-content p.lead {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 60px;
        }
        .hero-stat {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            backdrop-filter: blur(8px);
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 32px;
            }
            .hero-content p.lead {
                font-size: 16px;
            }
            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }
            .hero-content {
                padding: 80px 0 60px;
            }
            .hero-category {
                min-height: 580px;
            }
        }

        /* ===== 倒计时条 ===== */
        .countdown-bar {
            position: relative;
            z-index: 5;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }
        .countdown-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 18px;
            padding-bottom: 18px;
        }
        .countdown-tag {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .countdown-num {
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.25);
            border-radius: 10px;
            padding: 6px 12px;
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            min-width: 54px;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }
        .countdown-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin: 0 2px;
        }

        /* ===== 痛点卡片 ===== */
        .pain-card {
            background: var(--bg-white);
            border-radius: 18px;
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .pain-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 卖点卡 ===== */
        .solution-card {
            border-radius: 18px;
            padding: 26px;
            background: linear-gradient(145deg, #fff, #F8FAFC);
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 6px 24px rgba(0, 20, 40, 0.04);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 20, 40, 0.10);
        }
        .solution-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(123, 97, 255, 0.12));
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
        }

        /* ===== 场景卡 ===== */
        .scene-card {
            border-radius: 18px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scene-img {
            height: 220px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .scene-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 17, 40, 0.45), transparent);
        }
        .scene-body {
            padding: 24px;
        }
        .scene-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scene-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 40px;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
            flex-shrink: 0;
        }
        .step-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 数据成果 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, var(--primary-lighter) 100%);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
        }
        .stat-box {
            text-align: center;
            padding: 36px 20px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(12px);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .stat-box:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
        }
        .stat-box .num {
            font-size: 44px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-box .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
        }

        /* ===== 证言卡 ===== */
        .testimonial-card {
            border-radius: 20px;
            padding: 28px;
            background: var(--bg-white);
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .testimonial-stars {
            color: #fbbf24;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .testimonial-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 20px;
            flex: 1;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            padding-top: 16px;
        }
        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            flex-shrink: 0;
        }
        .testimonial-name {
            font-size: 14px;
            font-weight: 600;
        }
        .testimonial-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-radius: 16px;
            background: var(--bg-white);
            border: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: 0 4px 16px rgba(0, 20, 40, 0.04);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.3s;
        }
        .faq-item:hover {
            box-shadow: 0 8px 30px rgba(0, 20, 40, 0.08);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
        }
        .faq-question i {
            color: var(--accent);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 17, 40, 0.94), rgba(18, 42, 95, 0.88));
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 100px 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 70px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px 50px;
        }
        .footer-brand .logo {
            font-size: 18px;
            margin-bottom: 14px;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color 0.3s, padding-left 0.3s;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            max-width: 1280px;
            margin: 0 auto;
        }
        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                padding-bottom: 30px;
            }
        }
        @media (max-width: 520px) {
            .header-main {
                padding: 12px 16px;
            }
            .logo {
                font-size: 15px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 14px;
            }
            .header-cta {
                display: none;
            }
            .header-tabs {
                padding: 0 16px 8px;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 动效 ===== */
        .section-fade {
            animation: fadeUp 0.8s ease both;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(0, 212, 255, 0.5);
            outline-offset: 3px;
        }