/* roulang page: index */
*{margin:0;padding:0;box-sizing:border-box}
ul,ol{list-style:none}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}
input{font-family:inherit;outline:none}
:root{
  --primary:#0e2f4e;
  --primary-light:#1a4d75;
  --primary-dark:#081f33;
  --accent:#2ea1ff;
  --accent-hover:#1589ec;
  --accent-soft:#e6f3ff;
  --green:#22c894;
  --amber:#f5b63f;
  --bg:#f6f9fc;
  --white:#ffffff;
  --text:#142a40;
  --muted:#617b93;
  --border:#dfe9f1;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 14px 36px rgba(14,47,78,.10);
  --shadow-sm:0 4px 14px rgba(14,47,78,.07);
  --transition:.25s ease;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:90px 0}
.section-head{max-width:660px;margin:0 auto 56px;text-align:center}
.section-tag{display:inline-block;padding:6px 18px;border-radius:999px;background:var(--accent-soft);color:var(--accent-hover);font-weight:600;font-size:13px;letter-spacing:.5px;margin-bottom:16px}
.section-head h2{font-size:32px;line-height:1.3;color:var(--primary-dark);margin-bottom:14px;font-weight:700}
.section-head p{font-size:16px;color:var(--muted);line-height:1.8}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:999px;transition:all var(--transition);font-size:15px;line-height:1;border:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff;padding:13px 26px}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 10px 24px rgba(46,161,255,.35)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid rgba(255,255,255,.6);padding:11px 22px;color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15);transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff;padding:13px 26px}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 10px 24px rgba(14,47,78,.25)}
.btn-light{background:#fff;color:var(--primary);padding:13px 26px;box-shadow:var(--shadow-sm)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);transition:box-shadow var(--transition)}
.site-header.scrolled{box-shadow:0 12px 30px rgba(14,47,78,.08)}
.nav-wrap{display:flex;align-items:center;height:72px;gap:26px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--primary-dark);white-space:nowrap}
.brand-icon{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),#19bda1);border-radius:12px;color:#fff;font-size:17px;flex-shrink:0;box-shadow:0 4px 12px rgba(46,161,255,.3)}
.brand-text{letter-spacing:.2px}
.nav-menu{display:flex;align-items:center;gap:16px;margin-left:auto;flex:1;justify-content:flex-end}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-block;padding:9px 16px;border-radius:999px;font-weight:500;color:var(--muted);transition:all var(--transition);font-size:15px}
.nav-link:hover{color:var(--primary);background:var(--bg)}
.nav-link.active{color:var(--primary);background:var(--accent-soft);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:8px 16px;min-width:190px;transition:all var(--transition)}
.nav-search:focus-within{border-color:var(--accent);background:var(--white);box-shadow:0 0 0 3px rgba(46,161,255,.15)}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{border:none;background:transparent;font-size:14px;color:var(--text);width:100%}
.nav-search input::placeholder{color:#9db0c2}
.nav-login{display:inline-flex;align-items:center;gap:7px;background:linear-gradient(135deg,var(--accent),#1ea9d2);color:#fff;font-weight:600;font-size:14px;padding:9px 20px;border-radius:999px;transition:all var(--transition);box-shadow:0 6px 18px rgba(46,161,255,.28)}
.nav-login:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(46,161,255,.4)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--bg);border:1px solid var(--border);align-items:center;justify-content:center;font-size:20px;color:var(--primary);transition:all var(--transition)}
.nav-toggle:hover{background:var(--accent-soft);border-color:var(--accent)}
.nav-toggle i{pointer-events:none}

/* 首屏 */
.hero{position:relative;padding:120px 0 115px;background:url('/assets/images/backpic/back-1.png') no-repeat center center / cover;color:#fff;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(5,20,34,.92),rgba(13,52,82,.78))}
.hero::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:80px;background:linear-gradient(to top,rgba(246,249,252,1),rgba(246,249,252,0));z-index:2}
.hero .container{position:relative;z-index:3}
.hero-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:7px 18px;font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:26px;backdrop-filter:blur(4px)}
.hero-pill i{color:var(--green)}
.hero h1{font-size:clamp(34px,4.4vw,54px);line-height:1.18;font-weight:800;letter-spacing:.5px;margin-bottom:20px;max-width:680px}
.hero-desc{font-size:17px;line-height:1.9;color:rgba(255,255,255,.86);max-width:620px;margin-bottom:32px}
.hero-btns{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:48px}
.hero-trust{display:flex;flex-wrap:wrap;gap:28px;border-top:1px solid rgba(255,255,255,.18);padding-top:28px;max-width:620px}
.trust-item{display:flex;align-items:center;gap:12px}
.trust-item i{font-size:22px;color:var(--green);background:rgba(34,200,148,.18);width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center}
.trust-item .num{font-size:20px;font-weight:700;line-height:1.2}
.trust-item .label{font-size:13px;color:rgba(255,255,255,.72)}

/* 特色卡片 */
.features-section{background:var(--white)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px 30px;transition:all var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe4f7}
.feature-icon{width:54px;height:54px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px}
.feature-icon.blue{background:var(--accent-soft);color:var(--accent-hover)}
.feature-icon.green{background:rgba(34,200,148,.12);color:#1daa7d}
.feature-icon.amber{background:rgba(245,182,63,.14);color:#d69a23}
.feature-card h3{font-size:19px;color:var(--primary-dark);margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--muted);line-height:1.75}

/* 分类入口 */
.categories-section{background:var(--bg)}
.categories-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.category-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--white);border:1px solid var(--border);transition:all var(--transition);display:flex;flex-direction:column}
.category-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg)}
.category-card .cat-cover{height:190px;overflow:hidden}
.category-card .cat-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.category-card:hover .cat-cover img{transform:scale(1.06)}
.category-card .cat-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.category-card .cat-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent-hover);background:var(--accent-soft);padding:5px 14px;border-radius:999px;margin-bottom:14px;align-self:flex-start}
.category-card h3{font-size:20px;color:var(--primary-dark);margin-bottom:8px}
.category-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:18px;flex:1}
.cat-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary);transition:all var(--transition)}
.cat-link:hover{color:var(--accent);gap:10px}
.cat-link i{transition:transform .25s ease}

/* 资讯列表 */
.news-section{background:var(--white)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.news-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px;transition:all var(--transition)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe4f7}
.news-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.news-card-top .badge{display:inline-block;padding:4px 12px;background:var(--accent-soft);color:var(--accent-hover);border-radius:999px;font-size:12px;font-weight:600}
.news-card-top time{font-size:13px;color:var(--muted)}
.news-card h3{font-size:18px;line-height:1.5;color:var(--primary-dark);margin-bottom:8px}
.news-card h3 a{transition:color var(--transition)}
.news-card h3 a:hover{color:var(--accent)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.text-link{font-size:14px;font-weight:600;color:var(--accent-hover);transition:all var(--transition)}
.text-link:hover{gap:6px;letter-spacing:.3px}
.empty-tip{grid-column:1/-1;text-align:center;padding:48px 20px;background:var(--bg);border-radius:var(--radius);color:var(--muted);font-size:16px}

/* 数据统计 */
.stats-section{position:relative;padding:86px 0;background:url('/assets/images/backpic/back-2.png') no-repeat center center / cover;color:#fff}
.stats-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(4,16,28,.94),rgba(10,48,77,.86))}
.stats-section .container{position:relative;z-index:2}
.stats-head{text-align:center;margin-bottom:52px}
.stats-head .section-tag{background:rgba(255,255,255,.15);color:#a9d5ff}
.stats-head h2{font-size:32px;color:#fff;margin-bottom:12px}
.stats-head p{color:rgba(255,255,255,.7);font-size:15px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-card{text-align:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:34px 20px;backdrop-filter:blur(6px);transition:all var(--transition)}
.stat-card:hover{background:rgba(255,255,255,.14);transform:translateY(-4px)}
.stat-icon{width:48px;height:48px;border-radius:12px;background:rgba(255,255,255,.14);display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:#7cc6ff;margin-bottom:14px}
.stat-num{font-size:32px;font-weight:800;display:block;line-height:1.2;color:#fff}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:4px}

/* 使用流程 */
.steps-section{background:var(--white)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:step}
.step-item{position:relative;text-align:center;padding:36px 22px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition)}
.step-item:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step-item::before{counter-increment:step;content:"0" counter(step);position:absolute;top:18px;left:22px;font-size:26px;font-weight:800;color:var(--border);line-height:1}
.step-icon{width:60px;height:60px;border-radius:16px;background:var(--accent-soft);color:var(--accent-hover);display:inline-flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.step-item h3{font-size:17px;color:var(--primary-dark);margin-bottom:8px}
.step-item p{font-size:14px;color:var(--muted);line-height:1.7}

/* 图文展示 */
.showcase-section{background:var(--bg)}
.showcase-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:80px}
.showcase-grid.reverse .showcase-media{order:2}
.showcase-grid.reverse .showcase-content{order:1}
.showcase-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.showcase-media img{width:100%;height:100%;object-fit:cover}
.showcase-content .section-tag{margin-bottom:12px}
.showcase-content h3{font-size:28px;line-height:1.35;color:var(--primary-dark);margin-bottom:16px}
.showcase-content p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:20px}
.showcase-list li{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;font-size:15px;color:var(--text)}
.showcase-list li i{color:var(--green);font-size:16px;margin-top:4px}

/* FAQ */
.faq-section{background:var(--white)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:all var(--transition)}
.faq-item.active{background:var(--white);border-color:var(--accent);box-shadow:var(--shadow-sm)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;font-size:16px;font-weight:600;color:var(--primary-dark);text-align:left;background:transparent;transition:all var(--transition)}
.faq-question:hover{color:var(--accent)}
.faq-icon{width:30px;height:30px;border-radius:50%;background:var(--accent-soft);display:inline-flex;align-items:center;justify-content:center;color:var(--accent-hover);font-size:14px;transition:all var(--transition);flex-shrink:0}
.faq-item.active .faq-icon{background:var(--accent);color:#fff;transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 26px}
.faq-item.active .faq-answer{max-height:500px;padding:0 26px 24px}
.faq-answer p{font-size:15px;color:var(--muted);line-height:1.85}

/* CTA */
.cta-section{position:relative;padding:90px 0;background:url('/assets/images/backpic/back-3.png') no-repeat center center / cover;color:#fff;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,22,38,.92),rgba(8,45,72,.82))}
.cta-section .container{position:relative;z-index:2;text-align:center}
.cta-section h2{font-size:34px;margin-bottom:14px}
.cta-section p{font-size:16px;color:rgba(255,255,255,.82);max-width:540px;margin:0 auto 34px}
.cta-btns{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

/* 页脚 */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.82);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:44px;padding-bottom:42px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand-icon{background:linear-gradient(135deg,var(--accent),#19bda1);box-shadow:none}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;max-width:280px}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.62);transition:all var(--transition)}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:12px}
.footer-contact i{color:var(--accent);width:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.48)}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media(max-width:1024px){
  .features-grid,.categories-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .showcase-grid{grid-template-columns:1fr;gap:42px}
  .showcase-grid.reverse .showcase-media{order:0}
  .showcase-grid.reverse .showcase-content{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:860px){
  .nav-toggle{display:inline-flex}
  .nav-menu{position:absolute;top:72px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:20px 24px;gap:18px;display:none;box-shadow:0 24px 40px rgba(14,47,78,.12)}
  .nav-menu.open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-list .nav-link{display:block;padding:12px 14px;border-radius:12px}
  .nav-actions{flex-direction:column;gap:12px;align-items:stretch}
  .nav-search{width:100%;min-width:0}
  .nav-login{width:100%;justify-content:center}
  .hero{padding:86px 0 78px}
  .hero h1{font-size:34px}
  .section{padding:64px 0}
  .news-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .container{padding:0 18px}
  .features-grid,.categories-grid,.stats-grid,.steps-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-trust{flex-direction:column;gap:16px}
  .hero-btns .btn{width:100%}
  .section-head h2{font-size:26px}
  .cta-section h2{font-size:27px}
  .cta-btns .btn{width:100%}
  .brand-text{font-size:17px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .step-item{padding:28px 18px}
  .showcase-content h3{font-size:23px}
}

/* Focus 可访问性 */
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(46,161,255,.45);outline-offset:2px}

/* roulang page: category1 */
:root {
        --primary: #0e4d92;
        --primary-light: #2a6db5;
        --primary-dark: #0a3769;
        --accent: #0ea5e9;
        --accent-soft: #e0f2fe;
        --gold: #f59e0b;
        --bg: #f4f7fb;
        --bg-soft: #eaf0f7;
        --bg-dark: #0b2540;
        --white: #ffffff;
        --text: #1e2a3a;
        --text-muted: #5b6b81;
        --border: #dce5ef;
        --radius: 16px;
        --radius-sm: 10px;
        --shadow: 0 10px 30px rgba(14, 77, 146, 0.08);
        --shadow-lg: 0 20px 50px rgba(14, 77, 146, 0.12);
        --spacer: 100px;
        --spacer-sm: 60px;
        --transition: all 0.3s ease;
    }

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

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
        display: block;
        border: 0;
    }

    a {
        color: var(--primary);
        text-decoration: none;
        transition: color 0.3s ease;
    }
    a:hover {
        color: var(--accent);
    }

    ul,
    ol {
        list-style: none;
    }

    button,
    input {
        font-family: inherit;
        font-size: 100%;
        line-height: 1.5;
    }

    button {
        cursor: pointer;
        border: none;
        background: none;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ========== Header / Nav ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        transition: box-shadow 0.3s ease;
    }
    .site-header.scrolled {
        box-shadow: 0 4px 24px rgba(10, 55, 105, 0.08);
    }

    .nav-wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 24px;
        position: relative;
    }

    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 18px;
        box-shadow: 0 6px 16px rgba(14, 77, 146, 0.28);
    }
    .brand-text {
        font-size: 1.25rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        color: var(--text);
        background: linear-gradient(135deg, var(--primary), var(--accent));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        white-space: nowrap;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 28px;
        flex: 1;
        justify-content: space-between;
    }

    .nav-list {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .nav-link {
        display: inline-block;
        padding: 8px 14px;
        border-radius: 8px;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-muted);
        transition: all 0.25s ease;
        position: relative;
    }
    .nav-link:hover {
        color: var(--primary);
        background: var(--bg-soft);
    }
    .nav-link.active {
        color: var(--primary);
        font-weight: 600;
        background: var(--accent-soft);
    }
    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: 2px;
        height: 2px;
        border-radius: 2px;
        background: var(--accent);
    }

    .nav-actions {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .nav-search {
        display: flex;
        align-items: center;
        background: var(--bg-soft);
        border: 1px solid var(--border);
        border-radius: 30px;
        padding: 7px 16px;
        gap: 8px;
        transition: all 0.3s ease;
        width: 200px;
    }
    .nav-search:focus-within {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
        background: var(--white);
    }
    .nav-search i {
        color: var(--text-muted);
        font-size: 0.85rem;
    }
    .nav-search input {
        border: none;
        background: transparent;
        outline: none;
        font-size: 0.875rem;
        width: 100%;
        color: var(--text);
    }
    .nav-search input::placeholder {
        color: #9aa8b8;
    }

    .nav-login {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 9px 20px;
        border-radius: 30px;
        background: var(--primary);
        color: #fff;
        font-size: 0.9rem;
        font-weight: 600;
        box-shadow: 0 6px 16px rgba(14, 77, 146, 0.24);
        transition: all 0.3s ease;
        white-space: nowrap;
    }
    .nav-login:hover {
        background: var(--primary-dark);
        color: #fff;
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(10, 55, 105, 0.3);
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: var(--bg-soft);
        color: var(--text);
        align-items: center;
        justify-content: center;
        font-size: 1.15rem;
        transition: background 0.3s ease;
    }
    .nav-toggle:hover {
        background: var(--accent-soft);
    }

    /* ========== Page Banner ========== */
    .page-banner {
        position: relative;
        background-image: url("/assets/images/backpic/back-1.png");
        background-size: cover;
        background-position: center;
        padding: 110px 0 90px;
        color: #fff;
        overflow: hidden;
    }
    .page-banner::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(78deg, rgba(6, 28, 53, 0.92) 30%, rgba(14, 77, 146, 0.72) 70%, rgba(14, 165, 233, 0.55));
    }
    .page-banner::after {
        content: "";
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 70px;
        background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 70' fill='%23f4f7fb'%3E%3Cpath d='M0,35 C240,70 480,0 720,20 C960,40 1200,60 1440,30 L1440,70 L0,70 Z'/%3E%3C/svg%3E") center bottom no-repeat;
        background-size: cover;
    }
    .page-banner .container {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 18px;
    }
    .breadcrumb a {
        color: rgba(255, 255, 255, 0.9);
    }
    .breadcrumb a:hover {
        color: var(--gold);
    }
    .breadcrumb i {
        font-size: 0.7rem;
        color: rgba(255, 255, 255, 0.5);
    }

    .page-banner h1 {
        font-size: clamp(2.1rem, 4vw, 3.2rem);
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: 0.01em;
        margin-bottom: 18px;
        max-width: 680px;
    }
    .page-banner h1 span {
        color: var(--gold);
    }
    .page-banner p.lead {
        font-size: 1.1rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.86);
        max-width: 620px;
        margin-bottom: 28px;
    }

    .banner-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .banner-tags .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(255, 255, 255, 0.14);
        border: 1px solid rgba(255, 255, 255, 0.24);
        border-radius: 30px;
        padding: 6px 16px;
        font-size: 0.85rem;
        font-weight: 500;
        color: #fff;
        backdrop-filter: blur(6px);
    }

    /* ========== Section Base ========== */
    .section {
        padding: var(--spacer) 0;
    }
    .section-alt {
        background: var(--bg-soft);
    }
    .section-white {
        background: var(--white);
    }

    .section-head {
        max-width: 640px;
        margin-bottom: 50px;
    }
    .section-head.center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--accent-soft);
        color: var(--primary);
        font-size: 0.82rem;
        font-weight: 600;
        padding: 6px 16px;
        border-radius: 30px;
        margin-bottom: 16px;
        letter-spacing: 0.04em;
    }
    .section-tag i {
        font-size: 0.75rem;
    }

    .section-head h2 {
        font-size: clamp(1.7rem, 3vw, 2.4rem);
        font-weight: 750;
        line-height: 1.3;
        color: var(--text);
        letter-spacing: -0.01em;
        margin-bottom: 14px;
    }
    .section-head p {
        font-size: 1rem;
        color: var(--text-muted);
        line-height: 1.8;
    }

    /* ========== Intro Cards ========== */
    .entry-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

    .entry-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 34px 28px;
        position: relative;
        overflow: hidden;
        transition: all 0.35s ease;
    }
    .entry-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .entry-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: transparent;
    }
    .entry-card:hover::before {
        opacity: 1;
    }

    .entry-icon {
        width: 58px;
        height: 58px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        margin-bottom: 22px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #fff;
        box-shadow: 0 8px 18px rgba(14, 77, 146, 0.22);
    }
    .entry-card h3 {
        font-size: 1.2rem;
        font-weight: 700;
        margin-bottom: 12px;
        color: var(--text);
    }
    .entry-card p {
        font-size: 0.92rem;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 18px;
    }
    .entry-card .card-link {
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: gap 0.3s ease;
    }
    .entry-card .card-link:hover {
        gap: 12px;
        color: var(--accent);
    }

    /* ========== Steps ========== */
    .steps-section {
        position: relative;
    }
    .steps-wrap {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        counter-reset: step;
    }

    .step-card {
        background: var(--white);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        padding: 32px 24px 28px;
        text-align: center;
        position: relative;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .step-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow);
    }

    .step-num {
        width: 54px;
        height: 54px;
        margin: 0 auto 18px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #fff;
        font-size: 1.3rem;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 8px 20px rgba(14, 77, 146, 0.25);
        position: relative;
    }
    .step-card h3 {
        font-size: 1.05rem;
        font-weight: 700;
        margin-bottom: 10px;
        color: var(--text);
    }
    .step-card p {
        font-size: 0.88rem;
        color: var(--text-muted);
        line-height: 1.65;
    }

    /* ========== Highlight / Info Section ========== */
    .info-split {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .info-media {
        position: relative;
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }
    .info-media img {
        width: 100%;
        height: 380px;
        object-fit: cover;
        transition: transform 0.6s ease;
    }
    .info-media:hover img {
        transform: scale(1.03);
    }
    .info-media::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(200deg, rgba(14, 77, 146, 0.06), rgba(14, 165, 233, 0.1));
    }
    .info-media .media-badge {
        position: absolute;
        bottom: 20px;
        left: 20px;
        z-index: 2;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(10px);
        border-radius: 12px;
        padding: 10px 18px;
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--primary);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .info-content .section-tag {
        margin-bottom: 12px;
    }
    .info-content h2 {
        font-size: clamp(1.5rem, 2.6vw, 2.1rem);
        margin-bottom: 18px;
        line-height: 1.35;
    }
    .info-content p {
        color: var(--text-muted);
        margin-bottom: 22px;
        line-height: 1.8;
        font-size: 0.96rem;
    }

    .info-list {
        display: grid;
        gap: 14px;
        margin-bottom: 28px;
    }
    .info-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        background: var(--bg);
        border-radius: 12px;
        padding: 14px 18px;
        transition: background 0.3s ease;
    }
    .info-list li:hover {
        background: var(--accent-soft);
    }
    .info-list li i {
        color: var(--accent);
        font-size: 1rem;
        margin-top: 4px;
        flex-shrink: 0;
    }
    .info-list li span {
        color: var(--text);
        font-size: 0.92rem;
        line-height: 1.65;
    }

    /* ========== Notice / Tips ========== */
    .tips-section {
        background: var(--bg-dark);
        color: #f0f4fa;
        overflow: hidden;
        position: relative;
    }
    .tips-section::before {
        content: "";
        position: absolute;
        top: -80px;
        right: -80px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(14, 165, 233, 0.15), transparent 70%);
    }

    .tips-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 22px;
        position: relative;
        z-index: 2;
    }

    .tip-item {
        display: flex;
        gap: 16px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.09);
        border-radius: 14px;
        padding: 24px;
        transition: border-color 0.3s ease, background 0.3s ease;
    }
    .tip-item:hover {
        border-color: rgba(14, 165, 233, 0.4);
        background: rgba(255, 255, 255, 0.08);
    }
    .tip-item .tip-icon {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: rgba(245, 158, 11, 0.18);
        color: var(--gold);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        font-size: 1rem;
    }
    .tip-item h3 {
        font-size: 1rem;
        font-weight: 650;
        margin-bottom: 6px;
        color: #fff;
    }
    .tip-item p {
        font-size: 0.87rem;
        color: rgba(255, 255, 255, 0.7);
        line-height: 1.65;
    }

    .tips-section .section-head h2 {
        color: #fff;
    }
    .tips-section .section-head p {
        color: rgba(255, 255, 255, 0.65);
    }
    .tips-section .section-tag {
        background: rgba(245, 158, 11, 0.15);
        color: var(--gold);
    }

    /* ========== Related Content ========== */
    .content-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 26px;
    }

    .content-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        transition: all 0.35s ease;
    }
    .content-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
    }

    .content-card .card-img {
        position: relative;
        height: 200px;
        overflow: hidden;
    }
    .content-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .content-card:hover .card-img img {
        transform: scale(1.05);
    }
    .card-img .badge {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(6px);
        color: var(--primary);
        font-size: 0.78rem;
        font-weight: 600;
        padding: 5px 14px;
        border-radius: 20px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .content-card .card-body {
        padding: 20px 22px 24px;
    }
    .content-card .card-meta {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 0.8rem;
        color: var(--text-muted);
        margin-bottom: 10px;
    }
    .content-card .card-meta i {
        margin-right: 3px;
        color: var(--accent);
    }
    .content-card h3 {
        font-size: 1.05rem;
        font-weight: 680;
        margin-bottom: 10px;
        line-height: 1.45;
    }
    .content-card h3 a {
        color: var(--text);
        transition: color 0.3s ease;
    }
    .content-card h3 a:hover {
        color: var(--primary);
    }
    .content-card .card-body p {
        font-size: 0.88rem;
        color: var(--text-muted);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* ========== FAQ ========== */
    .faq-wrap {
        max-width: 860px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 14px;
        margin-bottom: 14px;
        overflow: hidden;
        transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }
    .faq-item:hover {
        border-color: var(--accent);
        box-shadow: 0 6px 20px rgba(14, 165, 233, 0.08);
    }

    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        background: transparent;
        text-align: left;
        font-size: 1rem;
        font-weight: 600;
        color: var(--text);
        transition: background 0.3s ease;
    }
    .faq-question:hover {
        background: var(--bg);
    }
    .faq-question i {
        font-size: 0.9rem;
        color: var(--primary);
        transition: transform 0.3s ease;
        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;
        border-top: 1px solid transparent;
    }
    .faq-item.active .faq-answer {
        max-height: 260px;
        border-top-color: var(--border);
    }
    .faq-answer p {
        padding: 18px 24px 22px;
        color: var(--text-muted);
        font-size: 0.93rem;
        line-height: 1.8;
    }

    /* ========== CTA ========== */
    .cta-section {
        position: relative;
        background-image: url("/assets/images/backpic/back-2.png");
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        padding: 100px 0;
        text-align: center;
        color: #fff;
        overflow: hidden;
    }
    .cta-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(8, 32, 58, 0.82);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
    }
    .cta-section h2 {
        font-size: clamp(1.8rem, 3.2vw, 2.6rem);
        font-weight: 750;
        margin-bottom: 18px;
    }
    .cta-section p {
        font-size: 1.05rem;
        color: rgba(255, 255, 255, 0.8);
        max-width: 520px;
        margin: 0 auto 34px;
        line-height: 1.8;
    }

    .cta-buttons {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 12px 28px;
        border-radius: 30px;
        font-size: 1rem;
        font-weight: 600;
        transition: all 0.3s ease;
        line-height: 1.4;
    }
    .btn-primary {
        background: var(--accent);
        color: #fff;
        box-shadow: 0 8px 24px rgba(14, 165, 233, 0.32);
    }
    .btn-primary:hover {
        background: #0284c7;
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 12px 30px rgba(14, 165, 233, 0.4);
    }
    .btn-outline-light {
        border: 1px solid rgba(255, 255, 255, 0.6);
        color: #fff;
        background: transparent;
    }
    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.12);
        color: #fff;
        border-color: #fff;
    }

    /* ========== Footer ========== */
    .site-footer {
        background: #0a1a2b;
        color: rgba(255, 255, 255, 0.72);
        padding: 70px 0 0;
        position: relative;
    }
    .site-footer::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--accent), var(--gold));
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 50px;
        padding-bottom: 44px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        margin-bottom: 28px;
    }

    .footer-brand .brand-icon {
        width: 38px;
        height: 38px;
        font-size: 16px;
        border-radius: 10px;
    }
    .footer-brand .brand-text {
        font-size: 1.15rem;
        color: #fff;
        -webkit-text-fill-color: initial;
        background: none;
    }
    .footer-brand p {
        font-size: 0.9rem;
        line-height: 1.75;
        margin-top: 16px;
        color: rgba(255, 255, 255, 0.56);
    }

    .footer-col h4 {
        color: #fff;
        font-size: 1rem;
        font-weight: 650;
        margin-bottom: 18px;
        letter-spacing: 0.03em;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul li a {
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.92rem;
        transition: color 0.3s ease, padding-left 0.3s ease;
    }
    .footer-col ul li a:hover {
        color: var(--accent);
        padding-left: 4px;
    }

    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 10px;
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.9rem;
    }
    .footer-contact li i {
        color: var(--accent);
        font-size: 0.85rem;
        width: 18px;
        text-align: center;
    }

    .footer-bottom {
        padding: 22px 0 30px;
        text-align: center;
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.4);
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
        .nav-wrap {
            gap: 16px;
        }
        .nav-menu {
            gap: 16px;
        }
        .nav-search {
            width: 150px;
        }
        .entry-grid {
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .steps-wrap {
            grid-template-columns: repeat(2, 1fr);
        }
        .content-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
    }

    @media (max-width: 900px) {
        .nav-wrap {
            height: 64px;
        }
        .nav-toggle {
            display: flex;
        }
        .nav-menu {
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--white);
            flex-direction: column;
            align-items: stretch;
            padding: 20px 24px 28px;
            gap: 18px;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            transform: translateY(-14px);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .nav-menu.open {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .nav-list {
            flex-direction: column;
            align-items: stretch;
            gap: 2px;
        }
        .nav-list .nav-link {
            padding: 12px 16px;
            border-radius: 10px;
        }
        .nav-list .nav-link.active::after {
            display: none;
        }
        .nav-actions {
            flex-direction: column;
            gap: 12px;
        }
        .nav-search {
            width: 100%;
        }
        .nav-login {
            justify-content: center;
            width: 100%;
        }

        .info-split {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .info-media img {
            height: 300px;
        }

        .tips-grid {
            grid-template-columns: 1fr;
        }
        .entry-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 640px) {
        :root {
            --spacer: 64px;
        }
        .container {
            padding: 0 18px;
        }
        .page-banner {
            padding: 80px 0 70px;
        }
        .entry-grid {
            grid-template-columns: 1fr;
        }
        .steps-wrap {
            grid-template-columns: 1fr;
        }
        .content-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .cta-buttons {
            flex-direction: column;
            align-items: center;
        }
        .btn {
            width: 100%;
            justify-content: center;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .faq-question {
            padding: 16px 18px;
            font-size: 0.95rem;
        }
        .faq-answer p {
            padding: 14px 18px 18px;
        }
        .brand-text {
            font-size: 1.1rem;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
        }
    }

    @media (max-width: 430px) {
        .nav-wrap {
            gap: 10px;
        }
        .brand-text {
            font-size: 1rem;
            max-width: 130px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .nav-toggle {
            width: 38px;
            height: 38px;
            font-size: 1rem;
        }
        .page-banner h1 {
            font-size: 1.7rem;
        }
    }

    /* ==== focus accessibility ==== */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
        outline: 3px solid var(--accent);
        outline-offset: 2px;
    }

/* roulang page: article */
:root {
  --primary: #0b2545;
  --primary-light: #13315c;
  --primary-lighter: #1b4273;
  --accent: #c8925e;
  --accent-light: #e0b88c;
  --bg: #f6f7fb;
  --bg-soft: #eef0f6;
  --bg-deep: #081b33;
  --card-bg: #ffffff;
  --text: #1d2433;
  --text-light: #5a6575;
  --text-lighter: #8b94a7;
  --border: #e3e6ee;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(11, 37, 69, 0.05);
  --shadow: 0 8px 30px rgba(11, 37, 69, 0.09);
  --shadow-lg: 0 20px 50px rgba(11, 37, 69, 0.14);
  --transition: all 0.25s ease;
  --container: 1200px;
  --header-height: 78px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 14px; }
ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(11, 37, 69, 0.25);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(200, 146, 94, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.btn-light:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
.btn-block { width: 100%; }

/* 头部导航 */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(227, 230, 238, 0.7);
  z-index: 1000;
  transition: var(--transition);
}
.site-header.scrolled {
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-size: 17px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(11, 37, 69, 0.25);
}
.brand:hover .brand-icon {
  transform: translateY(-2px) rotate(-6deg);
  background: var(--accent);
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  flex: 1;
  justify-content: space-between;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: inline-block;
  padding: 9px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  border-radius: 999px;
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: var(--bg-soft);
}
.nav-link.active {
  color: var(--primary);
  background: rgba(11, 37, 69, 0.08);
  font-weight: 600;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-search {
  position: relative;
  display: flex;
  align-items: center;
}
.nav-search i {
  position: absolute;
  left: 14px;
  font-size: 13px;
  color: var(--text-lighter);
  pointer-events: none;
}
.nav-search input {
  width: 180px;
  height: 38px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-soft);
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: var(--transition);
}
.nav-search input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(11, 37, 69, 0.08);
}
.nav-login {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 18px;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(11, 37, 69, 0.22);
}
.nav-login:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 146, 94, 0.35);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--primary);
  font-size: 18px;
  transition: var(--transition);
}
.nav-toggle:hover { background: rgba(11, 37, 69, 0.1); }

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
}

/* 文章 Hero */
.article-hero {
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.95), rgba(19, 49, 92, 0.88)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  position: relative;
  padding: calc(var(--header-height) + 56px) 0 86px;
  text-align: center;
  overflow: hidden;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 46px;
  background: var(--bg);
  clip-path: ellipse(72% 100% at 50% 0%);
}
.article-hero-content {
  position: relative;
  z-index: 1;
  max-width: 840px;
  margin: 0 auto;
}
.article-category {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  backdrop-filter: blur(6px);
  margin-bottom: 18px;
}
.article-hero h1 {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
  margin: 0 0 20px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta i {
  color: var(--accent-light);
}

/* 主体区 */
.article-main {
  padding: 56px 0 0;
  background: var(--bg);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}
.article-content-column {
  min-width: 0;
}
.article-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid rgba(227, 230, 238, 0.6);
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-content p {
  margin: 0 0 1.5em;
}
.article-content h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  margin: 2em 0 0.9em;
  padding-bottom: 0.5em;
  border-bottom: 2px solid var(--border);
  color: var(--primary);
}
.article-content h3 {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  margin: 1.8em 0 0.7em;
  color: var(--primary);
}
.article-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 1.6em 0 0.6em;
  color: var(--primary);
}
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  margin: 1.6em 0;
  box-shadow: var(--shadow-sm);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.article-content a:hover { color: var(--accent); }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  padding: 18px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.6em 0;
  color: var(--text-light);
  font-style: italic;
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.5em;
  padding-left: 1.6em;
}
.article-content li {
  margin-bottom: 0.45em;
}
.article-content ul li {
  list-style: disc;
}
.article-content ol li {
  list-style: decimal;
}
.article-content code {
  background: var(--bg-soft);
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--primary);
}
.article-content pre {
  background: var(--bg-deep);
  color: #e2e6ee;
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 1.6em 0;
  font-size: 14px;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--primary);
}

.article-empty {
  text-align: center;
  padding: 60px 20px;
}
.article-empty i {
  display: block;
  font-size: 56px;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0.8;
}
.article-empty h2 {
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 12px;
}
.article-empty p {
  color: var(--text-light);
  margin-bottom: 28px;
  font-size: 16px;
}

.article-footer-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

/* 侧边栏 */
.sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.side-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid rgba(227, 230, 238, 0.6);
  transition: var(--transition);
}
.side-card:hover { box-shadow: var(--shadow); }
.side-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--bg-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-title i { color: var(--accent); }
.side-platform-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.side-platform-head i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 15px;
}
.side-platform-head h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}
.side-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.side-list li {
  border-bottom: 1px solid var(--bg-soft);
}
.side-list li:last-child { border-bottom: none; }
.side-list a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
  transition: var(--transition);
}
.side-list a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.side-list a::before {
  content: "\f105";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--accent);
  font-size: 13px;
  margin-top: 3px;
  flex-shrink: 0;
}
.side-list .empty-li {
  color: var(--text-lighter);
  font-size: 14px;
  padding: 10px 0;
}
.side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.side-tags a {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-soft);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-light);
  transition: var(--transition);
}
.side-tags a:hover {
  background: var(--primary);
  color: #fff;
}

/* 通用板块头 */
.section-head {
  text-align: center;
  margin-bottom: 46px;
}
.section-head .section-label {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(11, 37, 69, 0.06);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-head .section-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.section-head .section-subtitle {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto;
}

/* 相关推荐 */
.related-section {
  padding: 70px 0 50px;
  background: var(--bg);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-card-item {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid rgba(227, 230, 238, 0.6);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.article-card-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(11, 37, 69, 0.15);
}
.article-card-item .card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.card-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 4px 14px;
  background: rgba(200, 146, 94, 0.12);
  color: var(--accent);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
}
.article-card-item:hover .card-title { color: var(--primary); }
.card-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-lighter);
}
.card-meta i { color: var(--accent); }
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-lighter);
  font-size: 15px;
  padding: 30px 0;
}

/* 核心服务 */
.service-intro {
  padding: 70px 0;
  background: #fff;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(11, 37, 69, 0.12);
}
.service-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.service-card:hover img { transform: scale(1.03); }
.service-body {
  padding: 26px;
  position: relative;
}
.service-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-size: 18px;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(11, 37, 69, 0.2);
}
.service-card:nth-child(2) .service-icon { background: var(--accent); box-shadow: 0 4px 12px rgba(200, 146, 94, 0.3); }
.service-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.service-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 14px;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: color 0.2s;
}
.service-link i { font-size: 12px; transition: transform 0.2s; }
.service-link:hover { color: var(--accent); }
.service-link:hover i { transform: translateX(4px); }

/* FAQ */
.faq-section {
  padding: 70px 0;
  background: var(--bg);
}
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid rgba(227, 230, 238, 0.7);
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(11, 37, 69, 0.18); }
.faq-item.active { box-shadow: var(--shadow); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border-radius: 50%;
  font-size: 12px;
  color: var(--text-light);
  transition: var(--transition);
}
.faq-item.active .faq-question i {
  background: var(--primary);
  color: #fff;
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 400px;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}

/* CTA */
.cta-section {
  padding: 0;
  background: var(--bg);
}
.cta-inner {
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.92), rgba(19, 49, 92, 0.85)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 70px;
}
.cta-inner::before {
  content: '';
  position: absolute;
  top: -50px; right: -50px;
  width: 200px; height: 200px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.08);
}
.cta-inner::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -30px;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.cta-inner > * { position: relative; z-index: 1; }
.cta-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 30px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand-text {
  color: #fff;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.55);
  max-width: 320px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}
.footer-contact i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  padding: 26px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.4);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* 响应式 */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .nav-search input { width: 140px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .related-grid,
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (max-width: 860px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 16px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-radius: 0 0 16px 16px;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
  }
  .nav-link.active,
  .nav-link:hover { background: var(--bg-soft); }
  .nav-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .nav-search input { width: 100%; }
  .nav-login { justify-content: center; height: 44px; }
  .nav-toggle { display: flex; }
}

@media (max-width: 768px) {
  :root { --header-height: 68px; }
  .brand-text { font-size: 17px; }
  .article-hero { padding: calc(var(--header-height) + 40px) 0 60px; }
  .article-hero h1 { font-size: 26px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-card { padding: 20px; }
  .article-content { font-size: 15px; }
  .article-content h2 { font-size: 21px; }
  .article-content h3 { font-size: 18px; }
  .article-footer-links { flex-direction: column; align-items: stretch; }
  .article-footer-links .btn { width: 100%; }
  .sidebar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; text-align: left; }
  .footer-brand p { max-width: 100%; }
  .cta-inner { padding: 44px 20px; }
  .cta-buttons .btn { width: 100%; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-login span { display: none; }
  .nav-login i { font-size: 16px; }
  .article-category { font-size: 12px; padding: 5px 14px; }
  .article-meta { flex-direction: column; gap: 6px; }
  .related-section,
  .service-intro,
  .faq-section { padding: 50px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head .section-title { font-size: 24px; }
  .service-card img { height: 160px; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #142c52;
            --primary-light: #23406e;
            --primary-dark: #0b1a30;
            --accent: #c9a86a;
            --accent-light: #f5ecd9;
            --accent-dark: #a8854a;
            --bg: #f6f7fb;
            --bg-soft: #eef0f6;
            --bg-deep: #0d1f3c;
            --text: #182338;
            --text-weak: #5e6a7d;
            --border: #e4e8f0;
            --white: #fff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(20, 35, 60, .06);
            --shadow-md: 0 8px 30px rgba(20, 35, 60, .10);
            --shadow-lg: 0 18px 50px rgba(20, 35, 60, .14);
            --spacing: 24px;
            --container: 1200px;
            --header-h: 76px;
            --transition: .25s ease;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-dark);
        }

        ul {
            list-style: none;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 96px 0;
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ========== Button ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn i {
            font-size: 14px;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 6px 20px rgba(20, 44, 82, .18);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(20, 44, 82, .25);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(201, 168, 106, .28);
        }

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

        .btn-outline {
            border-color: rgba(255, 255, 255, .6);
            color: var(--white);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: var(--white);
            color: var(--white);
        }

        .btn-light {
            background: var(--white);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(20, 44, 82, .10);
        }

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

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(20, 35, 60, .04);
            height: var(--header-h);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 20px;
            position: relative;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(20, 44, 82, .18);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
            justify-content: flex-end;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            display: block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: 8px;
            transition: all var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--bg);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--accent-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 8px 16px;
            transition: border-color var(--transition);
        }

        .nav-search i {
            color: var(--text-weak);
            font-size: 13px;
        }

        .nav-search input {
            background: transparent;
            font-size: 13px;
            color: var(--text);
            width: 110px;
        }

        .nav-search input::placeholder {
            color: var(--text-weak);
        }

        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 168, 106, .15);
        }

        .nav-login {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 40px;
            background: var(--primary);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .nav-login:hover {
            background: var(--primary-light);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(20, 44, 82, .22);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-soft);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--accent-light);
        }

        /* ========== Hero Banner ========== */
        .page-hero {
            position: relative;
            padding: 120px 0 96px;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 0;
        }

        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(13, 31, 60, .96), rgba(20, 44, 82, .82) 55%, rgba(35, 64, 110, .7));
        }

        .hero-content {
            position: relative;
            z-index: 1;
            color: var(--white);
            max-width: 760px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .75);
        }

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

        .breadcrumb i {
            font-size: 11px;
            opacity: .6;
        }

        .breadcrumb .current {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .82);
            max-width: 620px;
            margin-bottom: 28px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 30px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            color: rgba(255, 255, 255, .9);
        }

        .hero-tag i {
            color: var(--accent);
            font-size: 12px;
        }

        /* ========== 功能卡片网格 ========== */
        .features-grid-section {
            padding: 96px 0 72px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 168, 106, .4);
        }

        .feature-card-media {
            height: 190px;
            overflow: hidden;
            position: relative;
        }

        .feature-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .feature-card:hover .feature-card-media img {
            transform: scale(1.04);
        }

        .feature-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13, 31, 60, .25), transparent 60%);
        }

        .feature-card-body {
            padding: 26px 26px 28px;
        }

        .feature-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--accent-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ========== 核心功能详述 ========== */
        .detail-section {
            background: var(--bg-soft);
            padding: 96px 0;
        }

        .detail-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            margin-bottom: 80px;
        }

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

        .detail-row.reverse .detail-content {
            order: -1;
        }

        .detail-media {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .detail-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .detail-media::after {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 20px;
            box-shadow: inset 0 0 40px rgba(13, 31, 60, .18);
        }

        .detail-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-dark);
            background: var(--accent-light);
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .detail-content h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .detail-content p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .detail-list {
            margin-top: 12px;
        }

        .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text);
            border-bottom: 1px dashed var(--border);
        }

        .detail-list li:last-child {
            border-bottom: none;
        }

        .detail-list i {
            color: var(--accent);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .detail-list strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== 数据统计 ========== */
        .stats-section {
            position: relative;
            padding: 96px 0;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .stats-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .25;
            z-index: 0;
        }

        .stats-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(13, 31, 60, .97), rgba(20, 44, 82, .88));
        }

        .stats-content {
            position: relative;
            z-index: 1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius);
            padding: 38px 20px;
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-top: 8px;
            letter-spacing: 1px;
        }

        /* ========== 资讯列表 ========== */
        .news-section {
            padding: 96px 0;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .news-main {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .news-main-media {
            height: 260px;
            overflow: hidden;
        }

        .news-main-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-main-body {
            padding: 28px;
        }

        .news-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            background: var(--accent-light);
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }

        .news-main h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-main p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        .news-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 18px;
            transition: all var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: rgba(201, 168, 106, .4);
        }

        .news-item-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 15px;
        }

        .news-item-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 4px;
        }

        .news-item-content p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .news-meta {
            display: flex;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 10px;
        }

        .news-meta i {
            color: var(--accent);
            margin-right: 4px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg);
            padding: 96px 0;
        }

        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: rgba(201, 168, 106, .4);
        }

        .faq-item.open {
            border-color: rgba(201, 168, 106, .5);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: color var(--transition);
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--accent);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            padding-top: 16px;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
            background: var(--bg-deep);
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .3;
            z-index: 0;
        }

        .cta-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 31, 60, .97), rgba(35, 64, 110, .86));
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0b1626;
            color: rgba(255, 255, 255, .65);
            padding: 72px 0 0;
        }

        .site-footer .brand-text {
            color: var(--white);
        }

        .site-footer .brand-icon {
            background: rgba(255, 255, 255, .12);
            color: var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 18px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

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

            .detail-row,
            .news-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .detail-row.reverse .detail-content {
                order: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }

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

        @media (max-width: 768px) {
            .section-pad {
                padding: 64px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .page-hero {
                padding: 80px 0 64px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .nav-menu {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px;
                gap: 16px;
                box-shadow: 0 12px 30px rgba(20, 35, 60, .12);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: all .3s ease;
                z-index: 99;
            }

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

            .nav-list {
                flex-direction: column;
                gap: 4px;
            }

            .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }

            .nav-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .nav-search {
                width: 100%;
            }

            .nav-search input {
                width: 100%;
            }

            .nav-login {
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
            }

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

            .detail-media img {
                height: 280px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-num {
                font-size: 34px;
            }

            .stat-item {
                padding: 28px 16px;
            }

            .cta-content h2 {
                font-size: 30px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-text {
                font-size: 17px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-tag {
                font-size: 12px;
                padding: 5px 10px;
            }

            .section-title {
                font-size: 26px;
            }

            .features-grid {
                gap: 18px;
            }

            .feature-card-media {
                height: 160px;
            }

            .detail-content h3 {
                font-size: 23px;
            }

            .detail-media img {
                height: 220px;
            }

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

            .stat-num {
                font-size: 28px;
            }

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

            .cta-btns .btn {
                width: 100%;
                max-width: 320px;
            }

            .news-item {
                flex-direction: column;
            }

            .faq-question {
                font-size: 14px;
                padding: 16px 18px;
            }

            .faq-answer-inner {
                font-size: 14px;
                padding: 0 18px 18px;
            }
        }

/* roulang page: category3 */
:root {
      --primary: #0b2a45;
      --primary-light: #123b60;
      --primary-dark: #071c2e;
      --accent: #c9a86a;
      --accent-light: #e3c98f;
      --accent-dark: #ad8e4e;
      --bg: #f7f8fa;
      --bg-gray: #eef1f4;
      --bg-white: #ffffff;
      --bg-deep: #0b2a45;
      --text: #1e2d3d;
      --text-weak: #64748b;
      --border: #e2e8f0;
      --radius-lg: 20px;
      --radius: 14px;
      --radius-sm: 8px;
      --shadow: 0 10px 30px rgba(2, 18, 32, 0.06);
      --shadow-lg: 0 20px 50px rgba(2, 18, 32, 0.1);
      --shadow-hover: 0 18px 40px rgba(2, 18, 32, 0.12);
      --transition: all 0.3s ease;
      --gap-lg: 64px;
      --gap-md: 40px;
      --gap-sm: 20px;
      --container-w: 1200px;
      --radius-full: 999px;
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
      border: none;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }

    button {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: none;
      transition: var(--transition);
    }

    input {
      font-family: inherit;
      outline: none;
    }

    ul,
    ol {
      list-style: none;
    }

    ::selection {
      background: rgba(201, 168, 106, 0.3);
      color: var(--primary-dark);
    }

    .container {
      max-width: var(--container-w);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ========== Header ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 12px rgba(2, 18, 32, 0.04);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      height: 72px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      border-radius: 12px;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 4px 14px rgba(11, 42, 69, 0.28);
    }

    .brand-text {
      font-size: 19px;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--primary);
      white-space: nowrap;
    }

    .brand-text em {
      font-style: normal;
      color: var(--accent);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 16px;
      flex: 1;
      justify-content: space-between;
      margin-left: 28px;
    }

    .nav-list {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      padding: 9px 18px;
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      transition: var(--transition);
    }

    .nav-link:hover {
      color: var(--primary);
      background: rgba(11, 42, 69, 0.05);
    }

    .nav-link.active {
      color: var(--primary);
      background: rgba(11, 42, 69, 0.08);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 4px;
      left: 50%;
      transform: translateX(-50%);
      width: 16px;
      height: 3px;
      border-radius: var(--radius-full);
      background: var(--accent);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-search {
      display: flex;
      align-items: center;
      gap: 8px;
      background: var(--bg-gray);
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      padding: 8px 16px;
      width: 210px;
      transition: var(--transition);
    }

    .nav-search:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.15);
      background: #fff;
    }

    .nav-search i {
      color: var(--text-weak);
      font-size: 14px;
    }

    .nav-search input {
      border: none;
      background: transparent;
      font-size: 13px;
      width: 100%;
      color: var(--text);
    }

    .nav-search input::placeholder {
      color: var(--text-weak);
    }

    .nav-login {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      border: 1.5px solid var(--primary);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-login:hover {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 18px rgba(11, 42, 69, 0.22);
    }

    .nav-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--bg-gray);
      border: 1px solid var(--border);
      font-size: 18px;
      color: var(--primary);
    }

    /* ========== Page Hero ========== */
    .page-hero {
      position: relative;
      background: var(--bg-deep);
      color: #fff;
      padding: 96px 0 100px;
      overflow: hidden;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(7, 28, 46, 0.94) 0%, rgba(11, 42, 69, 0.78) 55%, rgba(11, 42, 69, 0.45) 100%);
      z-index: 1;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      border: 2px solid rgba(201, 168, 106, 0.25);
      bottom: -180px;
      left: -120px;
      z-index: 2;
      pointer-events: none;
    }

    .page-hero .container {
      position: relative;
      z-index: 3;
      text-align: center;
      max-width: 860px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: rgba(201, 168, 106, 0.15);
      border: 1px solid rgba(201, 168, 106, 0.4);
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 700;
      color: var(--accent-light);
      letter-spacing: 1px;
      margin-bottom: 24px;
    }

    .hero-badge i {
      font-size: 14px;
    }

    .page-hero h1 {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }

    .page-hero h1 span {
      color: var(--accent-light);
    }

    .page-hero .hero-sub {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.85);
      max-width: 620px;
      margin: 0 auto 32px;
      line-height: 1.8;
    }

    .hero-search {
      display: flex;
      align-items: center;
      gap: 0;
      max-width: 560px;
      margin: 0 auto;
      background: #fff;
      border-radius: var(--radius-full);
      padding: 6px;
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    }

    .hero-search input {
      flex: 1;
      border: none;
      padding: 12px 20px;
      font-size: 15px;
      border-radius: var(--radius-full);
      min-width: 0;
      color: var(--text);
    }

    .hero-search input::placeholder {
      color: var(--text-weak);
    }

    .hero-search button {
      padding: 12px 28px;
      background: var(--accent);
      color: var(--primary-dark);
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
      transition: var(--transition);
    }

    .hero-search button:hover {
      background: var(--accent-light);
      transform: translateY(-1px);
    }

    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 48px;
      margin-top: 48px;
      flex-wrap: wrap;
    }

    .hero-stat {
      text-align: center;
    }

    .hero-stat strong {
      display: block;
      font-size: 30px;
      font-weight: 800;
      color: #fff;
    }

    .hero-stat strong i {
      color: var(--accent);
      font-style: normal;
      font-size: 24px;
    }

    .hero-stat span {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
      margin-top: 4px;
      display: block;
    }

    .wave-divider {
      display: block;
      width: 100%;
      height: 50px;
      margin-top: -50px;
      position: relative;
      z-index: 4;
      background: linear-gradient(to bottom, var(--bg), var(--bg-white));
      clip-path: polygon(0 30%, 100% 0, 100% 100%, 0 100%);
    }

    /* ========== Section Common ========== */
    .section {
      padding: 84px 0;
    }

    .section-gray {
      padding: 84px 0;
      background: var(--bg-white);
    }

    .section-tight {
      padding: 60px 0 80px;
    }

    .section-head {
      text-align: center;
      max-width: 640px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 1.5px;
      color: var(--accent-dark);
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-tag::before,
    .section-tag::after {
      content: "";
      width: 24px;
      height: 1.5px;
      background: var(--accent);
      border-radius: 2px;
      display: inline-block;
    }

    .section-head h2 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      color: var(--primary);
      margin-bottom: 14px;
      letter-spacing: 0.3px;
    }

    .section-head h2 span {
      color: var(--accent-dark);
    }

    .section-head p {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-weak);
    }

    /* ========== Category Cards ========== */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .cate-card {
      position: relative;
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 28px;
      transition: var(--transition);
      overflow: hidden;
    }

    .cate-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--accent), var(--accent-light));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s ease;
    }

    .cate-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(201, 168, 106, 0.5);
    }

    .cate-card:hover::before {
      transform: scaleX(1);
    }

    .cate-icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--primary);
      background: rgba(11, 42, 69, 0.08);
      margin-bottom: 18px;
      transition: var(--transition);
    }

    .cate-card:hover .cate-icon {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 20px rgba(11, 42, 69, 0.25);
    }

    .cate-card h3 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text);
    }

    .cate-card p {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .cate-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent-dark);
      transition: var(--transition);
    }

    .cate-link i {
      font-size: 13px;
      transition: transform 0.3s ease;
    }

    .cate-card:hover .cate-link i {
      transform: translateX(4px);
    }

    /* ========== Hot Topics ========== */
    .hot-topics {
      background: var(--bg-white);
    }

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

    .topic-item {
      display: flex;
      gap: 16px;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px 20px;
      transition: var(--transition);
    }

    .topic-item:hover {
      box-shadow: var(--shadow);
      transform: translateY(-2px);
      border-color: rgba(201, 168, 106, 0.4);
      background: #fff;
    }

    .topic-num {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 800;
      background: var(--primary);
      color: #fff;
      margin-top: 2px;
    }

    .topic-num.alt {
      background: var(--accent);
      color: var(--primary-dark);
    }

    .topic-content h3 {
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 6px;
      line-height: 1.5;
      color: var(--text);
    }

    .topic-content h3 a:hover {
      color: var(--accent-dark);
    }

    .topic-content p {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .topic-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 10px;
      font-size: 12px;
      color: var(--text-weak);
    }

    .topic-meta i {
      color: var(--accent);
      font-size: 12px;
    }

    /* ========== Flow Steps ========== */
    .flow-section {
      background: var(--bg-deep);
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 84px 0;
      color: #fff;
    }

    .flow-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(7, 28, 46, 0.94), rgba(11, 42, 69, 0.85));
      z-index: 1;
    }

    .flow-section .container {
      position: relative;
      z-index: 2;
    }

    .flow-section .section-tag {
      color: var(--accent-light);
    }

    .flow-section .section-tag::before,
    .flow-section .section-tag::after {
      background: var(--accent-light);
    }

    .flow-section .section-head h2 {
      color: #fff;
    }

    .flow-section .section-head p {
      color: rgba(255, 255, 255, 0.7);
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      margin-top: 8px;
    }

    .flow-step {
      position: relative;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      text-align: center;
      backdrop-filter: blur(10px);
      transition: var(--transition);
    }

    .flow-step:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-4px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
    }

    .flow-step-num {
      width: 46px;
      height: 46px;
      margin: 0 auto 18px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      background: var(--accent);
      color: var(--primary-dark);
      box-shadow: 0 0 0 6px rgba(201, 168, 106, 0.15);
    }

    .flow-step h3 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 10px;
      color: #fff;
    }

    .flow-step p {
      font-size: 13px;
      line-height: 1.65;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 0;
    }

    .flow-arrow {
      position: absolute;
      top: 50%;
      right: -22px;
      transform: translateY(-50%);
      color: rgba(255, 255, 255, 0.3);
      font-size: 16px;
      z-index: 3;
    }

    /* ========== Support Team ========== */
    .team-section {
      background: var(--bg-gray);
      padding: 84px 0;
    }

    .team-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .team-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .team-media img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }

    .team-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(7, 28, 46, 0.5), transparent 60%);
    }

    .team-card-mini {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      z-index: 2;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-radius: var(--radius);
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 14px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    }

    .team-card-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
      flex-shrink: 0;
    }

    .team-card-info strong {
      display: block;
      font-size: 14px;
      color: var(--text);
    }

    .team-card-info span {
      font-size: 12px;
      color: var(--text-weak);
    }

    .team-content .section-tag {
      justify-content: flex-start;
    }

    .team-content .section-tag::before {
      display: none;
    }

    .team-content h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .team-content h2 span {
      color: var(--accent-dark);
    }

    .team-content > p {
      font-size: 15px;
      line-height: 1.85;
      color: var(--text-weak);
      margin-bottom: 24px;
    }

    .team-points {
      display: grid;
      gap: 14px;
      margin-bottom: 28px;
    }

    .team-point {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 14px 18px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      transition: var(--transition);
    }

    .team-point:hover {
      box-shadow: var(--shadow);
      border-color: rgba(201, 168, 106, 0.4);
    }

    .team-point i {
      width: 32px;
      height: 32px;
      flex-shrink: 0;
      border-radius: 9px;
      background: rgba(201, 168, 106, 0.15);
      color: var(--accent-dark);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      margin-top: 2px;
    }

    .team-point strong {
      display: block;
      font-size: 14px;
      margin-bottom: 3px;
      color: var(--text);
    }

    .team-point span {
      font-size: 13px;
      color: var(--text-weak);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 30px;
      background: var(--primary);
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 800;
      color: #fff;
      box-shadow: 0 8px 24px rgba(11, 42, 69, 0.25);
      transition: var(--transition);
      border: none;
    }

    .btn-primary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(11, 42, 69, 0.32);
    }

    .btn-accent {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 30px;
      background: var(--accent);
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 800;
      color: var(--primary-dark);
      transition: var(--transition);
      border: none;
      box-shadow: 0 8px 24px rgba(201, 168, 106, 0.25);
    }

    .btn-accent:hover {
      background: var(--accent-light);
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(201, 168, 106, 0.35);
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: 84px 0;
      background: var(--bg-white);
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 56px;
      align-items: flex-start;
    }

    .faq-side {
      position: sticky;
      top: 100px;
    }

    .faq-side .section-tag {
      justify-content: flex-start;
    }

    .faq-side .section-tag::before {
      display: none;
    }

    .faq-side h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .faq-side p {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .faq-contact-box {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px;
    }

    .faq-contact-box h4 {
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--text);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .faq-contact-box h4 i {
      color: var(--accent-dark);
    }

    .faq-contact-box p {
      font-size: 13px;
      margin-bottom: 0;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(201, 168, 106, 0.5);
    }

    .faq-item.open {
      background: #fff;
      box-shadow: var(--shadow);
      border-color: rgba(201, 168, 106, 0.5);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 20px 22px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text);
      text-align: left;
      background: none;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }

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

    .faq-question .faq-icon {
      width: 30px;
      height: 30px;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: var(--transition);
    }

    .faq-item.open .faq-icon {
      background: var(--accent);
      color: var(--primary-dark);
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
    }

    .faq-answer-inner {
      padding: 0 22px 20px 66px;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-weak);
    }

    /* ========== CTA ========== */
    .cta-section {
      background: var(--bg-deep);
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 72px 0;
      color: #fff;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(7, 28, 46, 0.92), rgba(11, 42, 69, 0.82));
      z-index: 1;
    }

    .cta-section .container {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 760px;
    }

    .cta-section h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 14px;
      color: #fff;
      line-height: 1.3;
    }

    .cta-section p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 32px;
      line-height: 1.8;
    }

    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .cta-buttons .btn-accent {
      background: var(--accent);
      color: var(--primary-dark);
    }

    .cta-buttons .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 30px;
      border: 1.5px solid rgba(255, 255, 255, 0.7);
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 800;
      color: #fff;
      transition: var(--transition);
    }

    .cta-buttons .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #fff;
    }

    .cta-meta {
      margin-top: 28px;
      display: flex;
      justify-content: center;
      gap: 24px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
    }

    .cta-meta i {
      color: var(--accent);
      margin-right: 6px;
    }

    /* ========== Footer ========== */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.75);
      padding: 60px 0 24px;
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 44px;
    }

    .footer-brand .brand {
      margin-bottom: 16px;
    }

    .footer-brand .brand-text {
      color: #fff;
    }

    .footer-brand .brand-icon {
      background: var(--accent);
      color: var(--primary-dark);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-col ul {
      display: grid;
      gap: 10px;
    }

    .footer-col ul li a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
      transition: var(--transition);
    }

    .footer-col ul li a:hover {
      color: var(--accent-light);
      padding-left: 4px;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
    }

    .footer-contact li i {
      width: 22px;
      color: var(--accent);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 22px;
      text-align: center;
      font-size: 12px;
      color: rgba(255, 255, 255, 0.45);
    }

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

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

      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }

      .flow-arrow {
        display: none;
      }

      .team-wrap {
        gap: 36px;
      }

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .faq-side {
        position: static;
      }

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

    @media (max-width: 768px) {
      .nav-wrap {
        height: 64px;
      }

      .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding: 24px;
        margin: 0;
        transform: translateX(100%);
        transition: transform 0.35s ease;
        z-index: 1000;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
      }

      .nav-menu.open {
        transform: translateX(0);
      }

      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        width: 100%;
      }

      .nav-link {
        border-radius: 10px;
        width: 100%;
        padding: 12px 14px;
      }

      .nav-actions {
        width: 100%;
        flex-direction: column;
        gap: 12px;
      }

      .nav-search {
        width: 100%;
      }

      .nav-login {
        width: 100%;
        justify-content: center;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .brand-text {
        font-size: 17px;
      }

      .page-hero {
        padding: 64px 0 72px;
      }

      .page-hero h1 {
        font-size: 30px;
      }

      .page-hero .hero-sub {
        font-size: 15px;
      }

      .hero-search {
        flex-direction: column;
        align-items: stretch;
        border-radius: var(--radius);
      }

      .hero-search input {
        border-radius: var(--radius);
        text-align: center;
      }

      .hero-search button {
        justify-content: center;
        border-radius: var(--radius);
      }

      .hero-stats {
        gap: 24px;
        margin-top: 32px;
      }

      .hero-stat strong {
        font-size: 24px;
      }

      .section,
      .section-gray,
      .flow-section,
      .team-section,
      .faq-section {
        padding: 60px 0;
      }

      .section-head {
        margin-bottom: 36px;
      }

      .section-head h2 {
        font-size: 26px;
      }

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

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

      .flow-steps {
        grid-template-columns: 1fr;
      }

      .flow-step {
        padding: 26px 20px;
      }

      .team-wrap {
        grid-template-columns: 1fr;
      }

      .team-media img {
        height: 300px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .cta-section h2 {
        font-size: 26px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .nav-wrap {
        gap: 12px;
      }

      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
      }

      .brand-text {
        font-size: 15px;
      }

      .page-hero h1 {
        font-size: 25px;
      }

      .page-hero .hero-sub {
        font-size: 14px;
      }

      .hero-stats {
        gap: 16px;
      }

      .hero-stat strong {
        font-size: 20px;
      }

      .hero-stat span {
        font-size: 11px;
      }

      .section-head h2 {
        font-size: 22px;
      }

      .topic-item {
        flex-direction: row;
        padding: 16px;
      }

      .topic-num {
        width: 34px;
        height: 34px;
        font-size: 13px;
      }

      .team-point {
        padding: 12px 14px;
      }

      .team-media img {
        height: 240px;
      }

      .faq-question {
        padding: 16px;
        font-size: 14px;
      }

      .faq-answer-inner {
        padding: 0 16px 16px 16px;
      }

      .cta-buttons {
        flex-direction: column;
        gap: 12px;
      }

      .cta-buttons .btn-accent,
      .cta-buttons .btn-outline {
        width: 100%;
        justify-content: center;
      }

      .cta-meta {
        flex-direction: column;
        gap: 8px;
      }
    }