/* roulang page: index */
:root{
    --primary:#38bdf8;
    --primary-dark:#0ea5e9;
    --accent:#818cf8;
    --accent2:#f472b6;
    --bg-deep:#0a101d;
    --bg-body:#0f1a2a;
    --bg-card:#141f33;
    --bg-card-hover:#1b2a44;
    --bg-sunken:#0d1626;
    --text-head:#eef4fb;
    --text-body:#c3d0e0;
    --text-weak:#7e8fa6;
    --border:#223450;
    --border-soft:#1d2c44;
    --radius-xl:24px;
    --radius-lg:18px;
    --radius-md:12px;
    --radius-sm:8px;
    --shadow-xl:0 20px 60px rgba(0,10,30,.45);
    --shadow-lg:0 12px 40px rgba(0,10,30,.4);
    --shadow-sm:0 4px 16px rgba(0,10,30,.3);
    --transition:.32s cubic-bezier(.4,0,.2,1);
    --dock-height:62px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg-body);color:var(--text-body);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:#7dd3fc}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit;border:0;background:none;outline:none}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:90px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.section-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;color:var(--primary);background:rgba(56,189,248,.12);padding:5px 18px;border-radius:99px;margin-bottom:16px;text-transform:uppercase}
.section-title{font-size:clamp(28px,3.6vw,42px);font-weight:800;color:var(--text-head);line-height:1.25;letter-spacing:-.5px}
.section-sub{font-size:16px;color:var(--text-weak);margin-top:14px;line-height:1.8}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 32px;border-radius:99px;font-weight:700;font-size:15px;cursor:pointer;transition:all var(--transition);border:1px solid transparent;line-height:1;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#05111f;box-shadow:0 8px 26px rgba(56,189,248,.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(56,189,248,.42);color:#040f1c}
.btn-ghost{border-color:var(--border);color:var(--text-head);background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(56,189,248,.08);transform:translateY(-3px)}
.btn-light{background:#fff;color:#0a101d}
.btn-light:hover{box-shadow:0 12px 30px rgba(255,255,255,.2);transform:translateY(-3px)}
.btn-sm{padding:9px 22px;font-size:13.5px}

/* 浮动Dock导航 */
.site-header{position:fixed;top:18px;left:0;right:0;z-index:990;pointer-events:none}
.dock{pointer-events:auto;display:flex;align-items:center;justify-content:space-between;gap:18px;background:rgba(12,22,38,.72);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.08);border-radius:99px;padding:8px 12px 8px 22px;box-shadow:0 18px 50px rgba(0,0,0,.5);max-width:1100px;margin:0 auto;transition:all .3s}
.brand-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text-head);letter-spacing:.5px}
.brand-logo .logo-dot{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:15px;color:#0a101d;font-weight:900;box-shadow:0 4px 14px rgba(56,189,248,.4)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-flex;align-items:center;padding:9px 20px;border-radius:99px;font-size:15px;font-weight:600;color:var(--text-body);transition:all .25s;white-space:nowrap}
.nav-link:hover{color:var(--text-head);background:rgba(255,255,255,.06)}
.nav-link.active{color:var(--primary);background:rgba(56,189,248,.14);font-weight:700}
.nav-extra{display:flex;align-items:center;gap:10px}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:99px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#05111f;font-weight:800;font-size:14px;transition:all var(--transition);box-shadow:0 6px 20px rgba(56,189,248,.3)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(56,189,248,.45);color:#03101c}
.menu-toggle{display:none;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);color:var(--text-head);align-items:center;justify-content:center;font-size:17px;cursor:pointer;transition:background .2s}
.menu-toggle:hover{background:rgba(255,255,255,.16)}
.mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(8,14,26,.97);backdrop-filter:blur(30px);z-index:980;padding:90px 30px 40px;flex-direction:column;gap:10px}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:20px;color:var(--text-head);padding:14px 20px;border-radius:14px;font-weight:700;border-bottom:1px solid var(--border-soft)}
.mobile-menu a:hover{background:rgba(255,255,255,.05)}
.mobile-menu a.active{color:var(--primary)}
.mobile-menu .close-btn{position:absolute;top:22px;right:24px;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;cursor:pointer}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--bg-deep)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center 30%;opacity:.32}
.hero-gradient{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,16,29,.97) 20%,rgba(10,16,29,.78) 50%,rgba(15,26,42,.55) 100%)}
.hero-gradient-2{position:absolute;inset:0;background:radial-gradient(ellipse at 75% 45%,rgba(129,140,248,.18),transparent 65%)}
.hero-content{position:relative;z-index:2;padding:150px 0 110px;max-width:760px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.28);color:#7dd3fc;padding:7px 20px;border-radius:99px;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:24px}
.hero-badge i{font-size:13px}
.hero h1{font-size:clamp(40px,6vw,68px);font-weight:900;line-height:1.12;color:var(--text-head);letter-spacing:-2px;margin-bottom:22px}
.hero h1 .grad-text{background:linear-gradient(120deg,var(--primary),var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:clamp(16px,1.6vw,19px);line-height:1.9;color:var(--text-body);margin-bottom:36px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-bottom:44px}
.hero-play{display:inline-flex;align-items:center;gap:10px;color:var(--text-head);font-weight:600;font-size:14px;padding:12px 22px;border-radius:99px;background:rgba(255,255,255,.06);border:1px solid var(--border);transition:all .3s;cursor:pointer}
.hero-play i{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#0a101d;display:flex;align-items:center;justify-content:center;font-size:14px}
.hero-play:hover{background:rgba(56,189,248,.12);border-color:var(--primary);transform:translateY(-2px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px;border-top:1px solid var(--border-soft);padding-top:30px}
.stat-item .stat-num{font-size:30px;font-weight:900;color:var(--text-head);line-height:1.1}
.stat-item .stat-num em{font-style:normal;color:var(--primary)}
.stat-item .stat-label{font-size:13.5px;color:var(--text-weak);margin-top:4px}

/* 特征条 */
.feature-strip{background:var(--bg-sunken);border-bottom:1px solid var(--border-soft)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--border-soft)}
.feature-item{background:var(--bg-sunken);padding:28px 22px;text-align:center;transition:background .3s}
.feature-item:hover{background:var(--bg-card)}
.feature-item i{font-size:26px;color:var(--primary);margin-bottom:12px;display:inline-block}
.feature-item h4{color:var(--text-head);font-size:16px;font-weight:700;margin-bottom:6px}
.feature-item p{font-size:13.5px;color:var(--text-weak)}

/* 分类频道 */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.cat-card{position:relative;background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-soft);overflow:hidden;transition:all var(--transition);display:block;height:100%}
.cat-card:hover{transform:translateY(-10px);border-color:rgba(56,189,248,.4);box-shadow:var(--shadow-xl)}
.cat-card-cover{position:relative;height:210px;overflow:hidden}
.cat-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.cat-card:hover .cat-card-cover img{transform:scale(1.06)}
.cat-card-cover .cat-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(15,22,38,.95) 100%)}
.cat-card-body{padding:26px 26px 28px}
.cat-card-body .cat-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--primary);background:rgba(56,189,248,.1);padding:4px 14px;border-radius:99px;margin-bottom:14px}
.cat-card-body h3{font-size:21px;font-weight:800;color:var(--text-head);margin-bottom:8px}
.cat-card-body p{font-size:14.5px;color:var(--text-weak);line-height:1.75}
.cat-card-body .cat-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:700;color:var(--primary)}
.cat-card-body .cat-more i{transition:transform .3s}
.cat-card:hover .cat-more i{transform:translateX(5px)}

/* 最新内容 */
.news-section{background:var(--bg-sunken)}
.news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius-lg);padding:20px 24px;transition:all var(--transition);display:flex;align-items:center;gap:18px}
.news-item:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.4);box-shadow:var(--shadow-sm)}
.news-item .news-order{flex-shrink:0;width:38px;height:38px;border-radius:12px;background:rgba(56,189,248,.1);color:var(--primary);font-weight:900;font-size:15px;display:flex;align-items:center;justify-content:center}
.news-item .news-info{flex:1;min-width:0}
.news-item .news-title{font-size:16px;font-weight:700;color:var(--text-head);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.news-item .news-title:hover{color:var(--primary)}
.news-item .news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-weak)}
.news-item .news-meta .badge{display:inline-block;padding:2px 10px;border-radius:99px;background:rgba(56,189,248,.12);color:#7dd3fc;font-weight:700}
.news-item .news-arrow{color:var(--text-weak);transition:all .3s;flex-shrink:0}
.news-item:hover .news-arrow{color:var(--primary);transform:translateX(4px)}
.news-aside{background:linear-gradient(150deg,rgba(56,189,248,.1),rgba(129,140,248,.1));border:1px solid var(--border);border-radius:var(--radius-xl);padding:34px;position:relative;overflow:hidden}
.news-aside::after{content:"";position:absolute;right:-40px;top:-40px;width:150px;height:150px;background:radial-gradient(circle,rgba(56,189,248,.2),transparent 70%);border-radius:50%}
.news-aside h4{font-size:20px;color:var(--text-head);font-weight:800;margin-bottom:10px}
.news-aside p{font-size:14px;color:var(--text-weak);line-height:1.8;margin-bottom:22px}
.news-aside .btn{position:relative;z-index:1}
.empty-tip{grid-column:1/-1;text-align:center;background:var(--bg-card);border:1px dashed var(--border);border-radius:var(--radius-lg);padding:48px;color:var(--text-weak);font-size:15px}

/* 特色精选 */
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-soft);overflow:hidden;transition:all var(--transition)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(56,189,248,.35)}
.feature-card-img{position:relative;height:190px;overflow:hidden}
.feature-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.feature-card:hover .feature-card-img img{transform:scale(1.05)}
.feature-card-img .play-overlay{position:absolute;inset:0;background:rgba(10,16,29,.35);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.feature-card:hover .play-overlay{opacity:1}
.feature-card-img .play-overlay i{width:52px;height:52px;background:rgba(255,255,255,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#0a101d;font-size:18px}
.feature-card-body{padding:22px 24px 26px}
.feature-card-body .f-label{font-size:12px;color:var(--primary);font-weight:700;letter-spacing:1px;margin-bottom:8px;display:block}
.feature-card-body h3{font-size:18px;color:var(--text-head);font-weight:800;margin-bottom:8px;line-height:1.4}
.feature-card-body p{font-size:14px;color:var(--text-weak);line-height:1.75}
.feature-card-body .f-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.f-tags span{font-size:12px;color:var(--text-weak);background:rgba(255,255,255,.05);padding:4px 14px;border-radius:99px;border:1px solid var(--border-soft)}

/* 热门排行 */
.hot-section{background:var(--bg-sunken)}
.hot-layout{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.hot-image{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}
.hot-image img{width:100%;height:420px;object-fit:cover}
.hot-image::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(10,16,29,.75))}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius-lg);padding:18px 22px;display:flex;align-items:center;gap:16px;transition:all .3s}
.hot-item:hover{background:var(--bg-card-hover);transform:translateX(6px);border-color:rgba(56,189,248,.3)}
.hot-rank{flex-shrink:0;width:42px;height:42px;border-radius:50%;background:rgba(56,189,248,.12);color:var(--primary);font-weight:900;font-size:17px;display:flex;align-items:center;justify-content:center}
.hot-item.top-1 .hot-rank{background:linear-gradient(135deg,var(--primary),var(--accent));color:#0a101d}
.hot-item.top-2 .hot-rank{background:rgba(129,140,248,.18);color:#c4b5fd}
.hot-item.top-3 .hot-rank{background:rgba(244,114,182,.15);color:#f9a8d4}
.hot-info{flex:1;min-width:0}
.hot-info h4{font-size:15.5px;color:var(--text-head);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.hot-info span{font-size:12.5px;color:var(--text-weak)}
.hot-score{font-size:14px;font-weight:800;color:var(--primary);flex-shrink:0}

/* 流程 */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.step-card{position:relative;text-align:center;padding:38px 20px;background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius-xl);transition:all .3s}
.step-card:hover{transform:translateY(-8px);border-color:rgba(56,189,248,.35);box-shadow:var(--shadow-lg)}
.step-num{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#0a101d;font-weight:900;font-size:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;box-shadow:0 8px 24px rgba(56,189,248,.35)}
.step-card h4{font-size:17px;color:var(--text-head);font-weight:800;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-weak);line-height:1.7}
.step-line{position:absolute;top:58px;right:-50%;width:100%;height:2px;background:linear-gradient(90deg,var(--primary),transparent);opacity:.3}
.step-card:last-child .step-line{display:none}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border-soft);border-radius:var(--radius-lg);margin-bottom:14px;overflow:hidden;transition:all .3s}
.faq-item:hover{border-color:rgba(56,189,248,.25)}
.faq-item.open{border-color:rgba(56,189,248,.4);box-shadow:var(--shadow-sm)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:700;color:var(--text-head);transition:background .25s}
.faq-q:hover{background:rgba(255,255,255,.03)}
.faq-q .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:rgba(56,189,248,.12);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:12px;transition:transform .3s}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--primary);color:#0a101d}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s ease}
.faq-a-inner{padding:0 24px 22px;font-size:14.5px;color:var(--text-weak);line-height:1.85;border-top:1px dashed var(--border-soft);margin:0 24px;padding-top:18px;padding-left:0;padding-right:0;padding-bottom:20px}
.faq-item.open .faq-a{max-height:500px}

/* CTA */
.cta-section{position:relative;overflow:hidden;background:var(--bg-deep)}
.cta-box{background:linear-gradient(135deg,rgba(56,189,248,.14),rgba(129,140,248,.14));border:1px solid var(--border);border-radius:var(--radius-xl);padding:70px 50px;position:relative;text-align:center;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-80px;left:10%;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.2),transparent 70%)}
.cta-box::after{content:"";position:absolute;bottom:-100px;right:5%;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(129,140,248,.2),transparent 70%)}
.cta-box h2{font-size:clamp(28px,3.6vw,42px);font-weight:900;color:var(--text-head);position:relative;z-index:1;line-height:1.3;margin-bottom:14px}
.cta-box p{font-size:16px;color:var(--text-weak);max-width:560px;margin:0 auto 34px;position:relative;z-index:1;line-height:1.8}
.cta-box .cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}

/* 页脚 */
.site-footer{background:var(--bg-sunken);border-top:1px solid var(--border-soft);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:44px;margin-bottom:46px}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-weak);line-height:1.8;max-width:260px}
.footer-col h5{font-size:15px;font-weight:800;color:var(--text-head);margin-bottom:18px;letter-spacing:.5px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-weak);transition:all .25s;display:inline-flex;align-items:center;gap:6px}
.footer-col ul a:hover{color:var(--primary);padding-left:4px}
.footer-col ul a i{font-size:10px;opacity:.6}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-weak);align-items:flex-start;margin-bottom:12px}
.footer-contact li i{color:var(--primary);margin-top:5px}
.footer-bottom{border-top:1px solid var(--border-soft);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text-weak)}

/* 响应式 */
@media (max-width:1024px){
    .category-grid{grid-template-columns:repeat(3,1fr);gap:20px}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .news-layout{grid-template-columns:1fr;gap:36px}
    .hot-layout{grid-template-columns:1fr;gap:36px}
    .steps-grid{grid-template-columns:repeat(2,1fr);gap:20px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
    .featured-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
    .section{padding:68px 0}
    .dock{padding:8px 10px 8px 16px;max-width:96%}
    .nav-links{display:none}
    .menu-toggle{display:flex}
    .nav-cta{display:none}
    .hero-content{padding:130px 0 80px}
    .category-grid{grid-template-columns:1fr}
    .featured-grid{grid-template-columns:1fr}
    .hot-image img{height:300px}
    .news-item{flex-wrap:wrap;gap:10px}
    .news-item .news-title{white-space:normal}
    .news-item .news-arrow{display:none}
    .cat-card-cover{height:180px}
    .footer-grid{grid-template-columns:1fr}
    .hero-stats{flex-direction:column;gap:22px}
}
@media (max-width:520px){
    .steps-grid{grid-template-columns:1fr}
    .container{width:92%}
    .hero h1{font-size:38px}
    .cta-box{padding:44px 24px}
    .feature-grid{grid-template-columns:1fr}
    .hero-actions .btn{width:100%;justify-content:center}
    .partners-grid{grid-template-columns:1fr 1fr}
}

/* roulang page: category1 */
:root {
        --primary: #4f7cff;
        --primary-alt: #6a5cff;
        --primary-soft: rgba(79, 124, 255, 0.12);
        --accent: #22d3a5;
        --bg: #0b0e1a;
        --bg-deep: #070a14;
        --bg-card: rgba(255, 255, 255, 0.04);
        --bg-card-hover: rgba(255, 255, 255, 0.07);
        --bg-glass: rgba(16, 20, 34, 0.8);
        --text: #eef1fa;
        --text-weak: #a0a8bd;
        --text-muted: #6e7791;
        --border: rgba(255, 255, 255, 0.08);
        --border-light: rgba(255, 255, 255, 0.14);
        --radius-sm: 10px;
        --radius: 16px;
        --radius-lg: 24px;
        --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.5);
        --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        --container-w: 1200px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

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

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

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

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

    ul {
        list-style: none;
    }

    .container {
        width: 100%;
        max-width: var(--container-w);
        margin: 0 auto;
        padding: 0 32px;
    }

    .visually-hidden {
        position: absolute;
        width: 1px;
        height: 1px;
        margin: -1px;
        padding: 0;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    ::selection {
        background: var(--primary);
        color: #fff;
    }

    :focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 3px;
        border-radius: 4px;
    }

    /* ===== Header / Dock Nav ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        padding: 20px 0;
        pointer-events: none;
    }

    .header-inner {
        pointer-events: all;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid var(--border);
        border-radius: 56px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 62px;
        padding: 0 24px 0 20px;
        box-shadow: var(--shadow);
        max-width: 1180px;
        margin: 0 auto;
        transition: var(--transition);
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 19px;
        font-weight: 700;
        letter-spacing: 0.5px;
        white-space: nowrap;
    }

    .logo-dot {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--primary-alt));
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 800;
        color: #fff;
        box-shadow: 0 6px 18px rgba(79, 124, 255, 0.4);
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 16px;
        border-radius: 40px;
        font-size: 14.5px;
        font-weight: 500;
        color: var(--text-weak);
        transition: var(--transition);
        position: relative;
        white-space: nowrap;
    }

    .nav-link:hover {
        color: var(--text);
        background: rgba(255, 255, 255, 0.06);
    }

    .nav-link.active {
        background: linear-gradient(135deg, rgba(79, 124, 255, 0.2), rgba(106, 92, 255, 0.2));
        color: var(--text);
        font-weight: 600;
    }

    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: 4px;
        left: 50%;
        transform: translateX(-50%);
        width: 12px;
        height: 3px;
        border-radius: 3px;
        background: var(--primary);
    }

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

    .header-search {
        display: flex;
        align-items: center;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid var(--border);
        border-radius: 40px;
        height: 38px;
        padding: 0 14px;
        gap: 8px;
        transition: var(--transition);
        width: 180px;
    }

    .header-search:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.15);
        width: 220px;
    }

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

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

    .header-search input::placeholder {
        color: var(--text-muted);
        font-size: 13px;
    }

    .header-burger {
        display: none;
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid var(--border);
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: var(--text);
    }

    @media (max-width: 1024px) {
        .site-header {
            padding: 16px 20px;
        }
        .header-search {
            width: 140px;
        }
        .header-search:focus-within {
            width: 170px;
        }
    }

    @media (max-width: 768px) {
        .header-inner {
            height: 58px;
            padding: 0 14px 0 14px;
        }
        .header-search {
            display: none;
        }
        .header-burger {
            display: inline-flex;
        }
        .nav-links {
            position: fixed;
            top: 84px;
            left: 16px;
            right: 16px;
            background: var(--bg-glass);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 12px;
            flex-direction: column;
            align-items: stretch;
            gap: 6px;
            display: none;
            box-shadow: var(--shadow-lg);
        }
        .nav-links.open {
            display: flex;
        }
        .nav-link {
            width: 100%;
            padding: 12px 16px;
            justify-content: flex-start;
            font-size: 15px;
            border-radius: 14px;
        }
        .nav-link.active {
            background: rgba(79, 124, 255, 0.15);
        }
        .nav-link.active::after {
            display: none;
        }
    }

    @media (max-width: 520px) {
        .brand-logo {
            font-size: 17px;
        }
        .header-inner {
            padding-left: 10px;
        }
    }

    /* ===== Main ===== */
    main {
        overflow: hidden;
    }

    .page-hero {
        position: relative;
        padding: 190px 0 110px;
        min-height: 62vh;
        display: flex;
        align-items: center;
        background: linear-gradient(135deg, rgba(11, 14, 26, 0.82), rgba(11, 14, 26, 0.42)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    }

    .page-hero::after {
        content: '';
        position: absolute;
        right: -120px;
        top: 20%;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(79, 124, 255, 0.18), transparent 70%);
        border-radius: 50%;
        pointer-events: none;
        z-index: 0;
    }

    .hero-content {
        position: relative;
        z-index: 2;
        text-align: center;
        max-width: 780px;
        margin: 0 auto;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(79, 124, 255, 0.12);
        border: 1px solid rgba(79, 124, 255, 0.3);
        color: #b8ccff;
        font-size: 13px;
        padding: 7px 18px;
        border-radius: 40px;
        font-weight: 500;
        letter-spacing: 0.4px;
        margin-bottom: 28px;
    }

    .hero-badge i {
        font-size: 11px;
        color: var(--accent);
    }

    .hero-title {
        font-size: 52px;
        font-weight: 800;
        line-height: 1.12;
        letter-spacing: -1px;
        margin-bottom: 20px;
    }

    .hero-title .gradient-text {
        background: linear-gradient(100deg, #8db4ff, #c4a5ff, #8db4ff);
        background-size: 200% 100%;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        animation: gradientShift 6s ease infinite;
    }

    @keyframes gradientShift {
        0%, 100% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
    }

    .hero-desc {
        font-size: 17px;
        color: var(--text-weak);
        line-height: 1.9;
        margin: 0 auto 36px;
        max-width: 640px;
    }

    .hero-meta {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 28px;
        flex-wrap: wrap;
    }

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

    .hero-stat strong {
        display: block;
        font-size: 28px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.2;
    }

    .hero-stat span {
        font-size: 13px;
        color: var(--text-muted);
    }

    .hero-divider {
        width: 1px;
        height: 34px;
        background: var(--border-light);
    }

    @media (max-width: 768px) {
        .page-hero {
            padding: 150px 0 80px;
            min-height: auto;
        }
        .hero-title {
            font-size: 34px;
        }
        .hero-desc {
            font-size: 15.5px;
        }
        .hero-meta {
            gap: 16px;
        }
        .hero-stat strong {
            font-size: 22px;
        }
    }

    @media (max-width: 520px) {
        .hero-title {
            font-size: 28px;
        }
        .hero-desc {
            font-size: 15px;
        }
        .hero-divider {
            display: none;
        }
        .hero-meta {
            gap: 24px;
        }
    }

    /* ===== Category Intro ===== */
    .category-intro {
        padding: 90px 0;
        background: var(--bg-deep);
        position: relative;
    }

    .category-intro .container {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .intro-copy .section-label {
        margin-bottom: 16px;
    }

    .intro-copy h2 {
        font-size: 32px;
        font-weight: 700;
        line-height: 1.3;
        margin-bottom: 18px;
    }

    .intro-copy p {
        color: var(--text-weak);
        line-height: 1.9;
        margin-bottom: 16px;
        font-size: 15.5px;
    }

    .intro-features {
        margin: 24px 0 0;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    .intro-features li {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 16px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: 12px;
        font-size: 14px;
        color: var(--text);
        transition: var(--transition);
    }

    .intro-features li:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-light);
        transform: translateY(-2px);
    }

    .intro-features li i {
        color: var(--accent);
        font-size: 13px;
    }

    .intro-visual {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border);
        aspect-ratio: 4/3;
    }

    .intro-visual img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .intro-visual:hover img {
        transform: scale(1.05);
    }

    .intro-visual .visual-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(7, 10, 20, 0.9), transparent 60%);
        display: flex;
        align-items: flex-end;
        padding: 28px;
    }

    .visual-overlay .tag-line {
        font-size: 13px;
        color: #b8ccff;
        background: rgba(11, 14, 26, 0.7);
        border: 1px solid rgba(79, 124, 255, 0.35);
        padding: 6px 14px;
        border-radius: 30px;
    }

    @media (max-width: 1024px) {
        .category-intro .container {
            gap: 40px;
        }
        .intro-copy h2 {
            font-size: 27px;
        }
    }

    @media (max-width: 768px) {
        .category-intro {
            padding: 60px 0;
        }
        .category-intro .container {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .intro-copy h2 {
            font-size: 25px;
        }
        .intro-features {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 520px) {
        .intro-features {
            grid-template-columns: 1fr;
        }
    }

    /* ===== Section common ===== */
    .section {
        padding: 90px 0;
    }

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        margin-bottom: 44px;
        gap: 30px;
        flex-wrap: wrap;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 12.5px;
        font-weight: 600;
        letter-spacing: 1.2px;
        text-transform: uppercase;
        color: var(--primary);
        background: var(--primary-soft);
        border: 1px solid rgba(79, 124, 255, 0.2);
        padding: 6px 16px;
        border-radius: 30px;
    }

    .section-title {
        font-size: 30px;
        font-weight: 700;
        line-height: 1.3;
        margin-top: 14px;
        letter-spacing: -0.4px;
    }

    .section-sub {
        color: var(--text-weak);
        font-size: 15px;
        line-height: 1.8;
        margin-top: 10px;
        max-width: 560px;
    }

    .section-action a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-weak);
        padding: 10px 20px;
        border-radius: 40px;
        border: 1px solid var(--border);
        transition: var(--transition);
    }

    .section-action a:hover {
        color: var(--text);
        background: var(--bg-card);
        border-color: var(--border-light);
        transform: translateX(4px);
    }

    @media (max-width: 768px) {
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 24px;
        }
    }

    /* ===== Guide Cards ===== */
    .guide-section {
        background: var(--bg);
        position: relative;
    }

    .guide-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 26px;
    }

    .guide-card {
        position: relative;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        min-height: 100%;
    }

    .guide-card:hover {
        transform: translateY(-8px);
        background: var(--bg-card-hover);
        border-color: rgba(79, 124, 255, 0.4);
        box-shadow: var(--shadow);
    }

    .guide-card .card-thumb {
        position: relative;
        aspect-ratio: 16/10;
        overflow: hidden;
    }

    .guide-card .card-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .guide-card:hover .card-thumb img {
        transform: scale(1.06);
    }

    .card-thumb .thumb-tag {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(11, 14, 26, 0.75);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.18);
        border-radius: 30px;
        font-size: 12px;
        padding: 5px 14px;
        color: #fff;
        font-weight: 500;
        z-index: 2;
    }

    .card-thumb .play-btn {
        position: absolute;
        right: 14px;
        top: 14px;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: rgba(79, 124, 255, 0.3);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 13px;
        color: #fff;
        transition: var(--transition);
        z-index: 2;
    }

    .guide-card:hover .play-btn {
        background: var(--primary);
        transform: scale(1.08);
        box-shadow: 0 0 24px rgba(79, 124, 255, 0.5);
    }

    .guide-card .card-body {
        padding: 22px 22px 20px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .guide-card .card-body h3 {
        font-size: 18px;
        font-weight: 600;
        line-height: 1.4;
        margin-bottom: 8px;
        transition: var(--transition);
    }

    .guide-card .card-body h3 a:hover {
        color: var(--primary);
    }

    .guide-card .card-body p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.75;
        flex: 1;
        margin-bottom: 14px;
    }

    .guide-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-top: 14px;
        border-top: 1px solid var(--border);
    }

    .card-meta .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        color: var(--text-muted);
    }

    .card-meta .badge i {
        color: var(--accent);
        font-size: 11px;
    }

    .card-meta .card-link {
        font-size: 13px;
        font-weight: 500;
        color: var(--primary-soft);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: #8db4ff;
        transition: var(--transition);
    }

    .card-meta .card-link:hover {
        gap: 10px;
        color: #b8ccff;
    }

    @media (max-width: 1024px) {
        .guide-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .guide-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .guide-card {
            min-height: auto;
        }
    }

    /* ===== Process / Steps ===== */
    .process-section {
        background: var(--bg-deep);
        padding: 90px 0;
    }

    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 26px;
        counter-reset: step;
    }

    .process-item {
        position: relative;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 32px 26px 28px;
        transition: var(--transition);
        overflow: hidden;
    }

    .process-item::before {
        content: counter(step);
        counter-increment: step;
        position: absolute;
        top: -20px;
        right: 14px;
        font-size: 80px;
        font-weight: 800;
        color: rgba(79, 124, 255, 0.08);
        line-height: 1;
        transition: var(--transition);
    }

    .process-item:hover {
        transform: translateY(-6px);
        border-color: rgba(79, 124, 255, 0.35);
        background: var(--bg-card-hover);
    }

    .process-item:hover::before {
        color: rgba(79, 124, 255, 0.18);
    }

    .process-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
        background: linear-gradient(135deg, rgba(79, 124, 255, 0.2), rgba(106, 92, 255, 0.2));
        border: 1px solid rgba(79, 124, 255, 0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 19px;
        color: #8db4ff;
        margin-bottom: 20px;
        position: relative;
        z-index: 2;
    }

    .process-item h3 {
        font-size: 17px;
        font-weight: 600;
        margin-bottom: 10px;
        position: relative;
        z-index: 2;
    }

    .process-item p {
        font-size: 13.5px;
        color: var(--text-weak);
        line-height: 1.75;
        position: relative;
        z-index: 2;
    }

    @media (max-width: 1024px) {
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 520px) {
        .process-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ===== Comparison ===== */
    .comparison-section {
        background: var(--bg);
        padding: 90px 0;
    }

    .comparison-wrap {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 26px;
    }

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

    .compare-card:hover {
        transform: translateY(-4px);
        background: var(--bg-card-hover);
    }

    .compare-card.recommend {
        border-color: rgba(79, 124, 255, 0.5);
        background: linear-gradient(145deg, rgba(79, 124, 255, 0.1), var(--bg-card));
    }

    .compare-badge {
        position: absolute;
        top: 20px;
        right: 20px;
        font-size: 12px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(34, 211, 165, 0.12);
        border: 1px solid rgba(34, 211, 165, 0.3);
        padding: 4px 12px;
        border-radius: 30px;
    }

    .compare-card h3 {
        font-size: 19px;
        font-weight: 600;
        margin-bottom: 8px;
    }

    .compare-card .compare-sub {
        font-size: 13.5px;
        color: var(--text-muted);
        margin-bottom: 20px;
    }

    .compare-list {
        display: grid;
        gap: 12px;
    }

    .compare-list li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.6;
    }

    .compare-list li i {
        margin-top: 4px;
        font-size: 13px;
        color: var(--accent);
    }

    .compare-list li .mark-diff {
        color: var(--text);
        font-weight: 500;
    }

    .compare-foot {
        margin-top: 22px;
        padding-top: 18px;
        border-top: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .compare-foot .price-line {
        font-size: 14px;
        color: var(--text-muted);
    }

    .compare-foot .price-line strong {
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        margin-left: 4px;
    }

    @media (max-width: 768px) {
        .comparison-wrap {
            grid-template-columns: 1fr;
        }
    }

    /* ===== FAQ ===== */
    .faq-section {
        background: var(--bg-deep);
        padding: 90px 0;
    }

    .faq-grid {
        display: grid;
        gap: 14px;
        max-width: 860px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0;
        transition: var(--transition);
        overflow: hidden;
    }

    .faq-item:hover {
        border-color: var(--border-light);
    }

    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 15.5px;
        font-weight: 500;
        color: var(--text);
        list-style: none;
        transition: var(--transition);
        user-select: none;
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary:hover {
        color: #b8ccff;
    }

    .faq-item summary i {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--primary-soft);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        color: var(--primary);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s;
    }

    .faq-item[open] summary i {
        transform: rotate(180deg);
        background: var(--primary);
        color: #fff;
    }

    .faq-item .faq-content {
        padding: 0 24px 20px;
        color: var(--text-weak);
        font-size: 14.5px;
        line-height: 1.85;
    }

    .faq-item .faq-content p {
        padding-top: 4px;
    }

    .faq-item .faq-content a {
        color: #8db4ff;
        border-bottom: 1px dashed rgba(141, 180, 255, 0.4);
    }

    .faq-item .faq-content a:hover {
        color: #b8ccff;
        border-bottom-style: solid;
    }

    /* ===== CTA ===== */
    .cta-section {
        position: relative;
        padding: 90px 0;
        background: linear-gradient(135deg, rgba(11, 14, 26, 0.85), rgba(11, 14, 26, 0.6)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        text-align: center;
    }

    .cta-inner {
        max-width: 680px;
        margin: 0 auto;
    }

    .cta-inner h2 {
        font-size: 30px;
        font-weight: 700;
        margin-bottom: 14px;
    }

    .cta-inner p {
        color: var(--text-weak);
        font-size: 15.5px;
        line-height: 1.8;
        margin-bottom: 28px;
    }

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

    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: linear-gradient(135deg, var(--primary), var(--primary-alt));
        color: #fff;
        font-size: 14.5px;
        font-weight: 600;
        padding: 14px 30px;
        border-radius: 46px;
        box-shadow: 0 10px 30px rgba(79, 124, 255, 0.35);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }

    .btn-primary::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.25), transparent);
        transform: translateX(-100%);
        transition: transform 0.6s ease;
    }

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 16px 40px rgba(79, 124, 255, 0.45);
    }

    .btn-primary:hover::after {
        transform: translateX(100%);
    }

    .btn-ghost {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: rgba(255, 255, 255, 0.07);
        border: 1px solid var(--border-light);
        color: var(--text);
        font-size: 14.5px;
        font-weight: 500;
        padding: 14px 30px;
        border-radius: 46px;
        transition: var(--transition);
    }

    .btn-ghost:hover {
        background: rgba(255, 255, 255, 0.13);
        border-color: rgba(255, 255, 255, 0.3);
        transform: translateY(-3px);
    }

    @media (max-width: 768px) {
        .cta-inner h2 {
            font-size: 24px;
        }
        .btn-primary,
        .btn-ghost {
            width: 100%;
            justify-content: center;
        }
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        padding: 60px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 44px;
    }

    .footer-brand .brand-logo {
        font-size: 21px;
        margin-bottom: 16px;
    }

    .footer-brand p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
        max-width: 340px;
        margin-top: 14px;
    }

    .footer-col h5 {
        font-size: 13px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }

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

    .footer-col ul li a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-weak);
        transition: var(--transition);
    }

    .footer-col ul li a:hover {
        color: var(--text);
        transform: translateX(4px);
    }

    .footer-col ul li a i {
        font-size: 9px;
        color: var(--text-muted);
        transition: var(--transition);
    }

    .footer-col ul li a:hover i {
        color: var(--primary);
    }

    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 13.5px;
        color: var(--text-weak);
        line-height: 1.7;
    }

    .footer-contact li i {
        width: 20px;
        color: var(--text-muted);
        font-size: 13px;
        text-align: center;
    }

    .footer-bottom {
        border-top: 1px solid var(--border);
        padding: 22px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        flex-wrap: wrap;
    }

    .footer-bottom p {
        font-size: 13px;
        color: var(--text-muted);
    }

    .footer-bottom p i {
        margin-right: 4px;
    }

    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
    }

    @media (max-width: 768px) {
        .site-footer {
            padding: 44px 0 0;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
            padding-bottom: 22px;
        }
    }

    /* ===== Reveal animation ===== */
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }

    @media (prefers-reduced-motion: reduce) {
        .reveal {
            opacity: 1;
            transform: none;
            transition: none;
        }
        * {
            animation-duration: 0.01ms !important;
            transition-duration: 0.01ms !important;
        }
    }

/* roulang page: article */
:root {
  --primary: #8b5cf6;
  --primary-2: #6d28d9;
  --accent: #22d3ee;
  --accent-2: #67e8f9;
  --bg: #0b0d12;
  --bg-soft: #11141c;
  --bg-card: #151926;
  --bg-card-hover: #1b2030;
  --text: #e9ecf2;
  --text-weak: #8b93a7;
  --border: rgba(139, 92, 246, 0.15);
  --border-2: rgba(255, 255, 255, 0.07);
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 28px 80px rgba(0, 0, 0, 0.55);
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --font-base: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-2); }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 36px; }
.section { padding: 96px 0; position: relative; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 48px; gap: 24px; flex-wrap: wrap; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--accent); text-transform: uppercase;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 14px;
}
.section-title h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; }
.section-title p { color: var(--text-weak); margin-top: 12px; font-size: 16px; max-width: 560px; }
.link-more { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--text); border-bottom: 1px solid transparent; }
.link-more:hover { color: var(--accent); border-bottom-color: var(--accent); }
.link-more i { transition: transform 0.3s; }
.link-more:hover i { transform: translateX(4px); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; border-radius: 999px; padding: 13px 28px;
  border: 1px solid transparent; cursor: pointer; transition: var(--transition);
  font-size: 15px; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; box-shadow: 0 8px 28px rgba(139, 92, 246, 0.3);
}
.btn-primary:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 14px 36px rgba(139, 92, 246, 0.45); }
.btn-secondary { background: rgba(255, 255, 255, 0.06); color: var(--text); border-color: var(--border-2); backdrop-filter: blur(8px); }
.btn-secondary:hover { color: #fff; background: rgba(255, 255, 255, 0.12); border-color: var(--border); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { color: #fff; border-color: var(--primary); background: rgba(139, 92, 246, 0.08); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn:focus-visible { outline: 3px solid rgba(34, 211, 238, 0.5); outline-offset: 2px; }

.bg-aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg-aurora .orb { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.22; }
.bg-aurora .orb-1 { width: 420px; height: 420px; background: var(--primary); top: -140px; right: -100px; }
.bg-aurora .orb-2 { width: 360px; height: 360px; background: var(--accent); bottom: 10%; left: -120px; }
.bg-aurora .orb-3 { width: 300px; height: 300px; background: #f59e0b; top: 50%; right: 20%; opacity: 0.1; }

.site-header {
  position: sticky; top: 20px; z-index: 100;
  padding: 0 16px; margin-top: 20px;
}
.dock-wrap {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(13, 16, 24, 0.86);
  backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 12px 26px;
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.5);
  max-width: 1180px;
}
.brand-logo {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 20px; font-weight: 800; color: #fff; letter-spacing: -0.01em;
}
.brand-logo .logo-dot {
  width: 38px; height: 38px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.4);
}
.brand-logo:hover { color: #fff; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 9px 16px; border-radius: 999px;
  font-size: 15px; font-weight: 500; color: var(--text-weak);
  transition: var(--transition); white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.07); }
.nav-link.active { color: #fff; background: rgba(139, 92, 246, 0.18); }

.article-hero {
  position: relative;
  padding: 140px 0 90px;
  background: linear-gradient(135deg, rgba(11, 13, 18, 0.9) 0%, rgba(13, 16, 24, 0.6) 50%, rgba(139, 92, 246, 0.18) 100%),
              url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border-2);
  overflow: hidden;
}
.article-hero::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.16), transparent 50%);
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-weak); margin-bottom: 24px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-weak); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; color: #555d6e; }
.breadcrumb span:last-child { color: var(--text); }
.article-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800; line-height: 1.2; letter-spacing: -0.03em;
  max-width: 800px; margin-bottom: 24px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}
.article-meta { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; color: var(--text-weak); font-size: 15px; }
.meta-item { display: inline-flex; align-items: center; gap: 7px; }
.meta-item i { color: var(--accent); font-size: 14px; }

.article-section { padding: 72px 0 90px; }
.article-wrap { max-width: 900px; }
.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--shadow);
  font-size: 16.5px;
  color: #dce1eb;
  line-height: 1.9;
}
.cms-copy > * + * { margin-top: 1.3em; }
.cms-copy h2 { font-size: 26px; font-weight: 700; color: #fff; margin-top: 1.8em; padding-left: 14px; border-left: 4px solid var(--primary); }
.cms-copy h3 { font-size: 21px; font-weight: 700; color: #fff; margin-top: 1.6em; }
.cms-copy p { color: #c3cad8; }
.cms-copy a { color: var(--accent); border-bottom: 1px solid transparent; }
.cms-copy a:hover { color: var(--accent-2); border-bottom-color: var(--accent-2); }
.cms-copy ul, .cms-copy ol { padding-left: 24px; }
.cms-copy ul { list-style: disc; }
.cms-copy ol { list-style: decimal; }
.cms-copy li { margin-top: 8px; color: #c3cad8; }
.cms-copy blockquote {
  border-left: 3px solid var(--primary);
  background: rgba(139, 92, 246, 0.07);
  padding: 18px 24px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #e2e8f0; font-style: normal;
}
.cms-copy img { border-radius: var(--radius-sm); margin: 28px 0; box-shadow: var(--shadow); }
.cms-copy table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.cms-copy th, .cms-copy td { border: 1px solid var(--border-2); padding: 12px 16px; text-align: left; }
.cms-copy th { background: rgba(139, 92, 246, 0.1); color: #fff; font-weight: 600; }

.article-missing {
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 70px 40px;
  text-align: center;
  box-shadow: var(--shadow);
}
.article-missing i { font-size: 60px; color: var(--text-weak); margin-bottom: 20px; }
.article-missing h2 { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.article-missing p { color: var(--text-weak); margin-bottom: 30px; }

.article-foot { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 40px; flex-wrap: wrap; }
.article-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag-chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600;
  background: rgba(139, 92, 246, 0.12); color: var(--accent-2);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 999px; padding: 7px 16px;
}
.article-share { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-weak); }
.share-btn {
  width: 38px; height: 38px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, 0.06); color: var(--text);
  border: 1px solid var(--border-2); transition: var(--transition);
}
.share-btn:hover { background: rgba(139, 92, 246, 0.2); color: #fff; transform: translateY(-3px); border-color: var(--primary); }

.related-section { background: var(--bg-soft); border-top: 1px solid var(--border-2); border-bottom: 1px solid var(--border-2); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: var(--transition);
}
.article-card:hover { transform: translateY(-8px); background: var(--bg-card-hover); border-color: rgba(139, 92, 246, 0.3); box-shadow: var(--shadow-hover); }
.article-card .cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.article-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.article-card:hover .cover img { transform: scale(1.05); }
.article-card .cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, var(--bg-card), transparent 60%); }
.article-card .badge {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(11, 13, 18, 0.7); backdrop-filter: blur(8px);
  color: var(--accent); font-size: 12px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.1);
}
.article-card .body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.article-card .body h3 { font-size: 18px; font-weight: 700; color: #fff; line-height: 1.45; }
.article-card .body p { font-size: 14.5px; color: var(--text-weak); line-height: 1.7; flex: 1; }
.article-card .card-foot { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-weak); }
.article-card .card-foot i { color: var(--primary); transition: transform 0.3s; }
.article-card:hover .card-foot i { transform: translateX(5px); }

.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  min-height: 280px; display: flex; align-items: flex-end;
  text-decoration: none; border: 1px solid var(--border-2); transition: var(--transition);
}
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; transition: transform 0.5s; }
.category-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11, 13, 18, 0.92) 15%, rgba(11, 13, 18, 0.35) 60%, rgba(11, 13, 18, 0.1)); z-index: 1; }
.category-card:hover { transform: translateY(-6px); border-color: rgba(139, 92, 246, 0.4); box-shadow: var(--shadow-hover); }
.category-card:hover img { transform: scale(1.06); }
.category-card .content { position: relative; z-index: 2; padding: 30px; color: #fff; }
.category-card .content h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.category-card .content p { font-size: 14px; color: rgba(255, 255, 255, 0.75); margin-bottom: 14px; line-height: 1.65; }
.category-card .arrow { font-size: 13px; color: var(--accent); font-weight: 600; }

.faq-section { background: var(--bg-soft); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border-2);
  border-radius: var(--radius-sm); padding: 26px 28px; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(139, 92, 246, 0.3); background: var(--bg-card-hover); }
.faq-item h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; display: flex; gap: 10px; align-items: flex-start; }
.faq-item h3 i { color: var(--primary); margin-top: 4px; }
.faq-item p { font-size: 14.5px; color: var(--text-weak); line-height: 1.75; }

.cta-box {
  position: relative; border-radius: calc(var(--radius) + 8px); overflow: hidden;
  padding: 64px 60px; background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(34, 211, 238, 0.12));
  border: 1px solid rgba(139, 92, 246, 0.25); text-align: center;
}
.cta-box::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.3), transparent 60%);
}
.cta-box .inner { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; }
.cta-box h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-box p { color: rgba(255, 255, 255, 0.75); font-size: 16px; margin-bottom: 30px; }
.cta-box .btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: #080a0e; border-top: 1px solid var(--border-2); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14.5px; color: var(--text-weak); line-height: 1.8; max-width: 380px; }
.footer-col h5 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { color: var(--text-weak); font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
.footer-col ul li a:hover { color: var(--accent); transform: translateX(3px); }
.footer-col ul li a i { font-size: 10px; color: var(--primary); }
.footer-contact li { color: var(--text-weak); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact li i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid var(--border-2); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  color: #555d6e; font-size: 13.5px;
}
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--accent); }

@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  .section { padding: 80px 0; }
  .related-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .cta-box { padding: 50px 34px; }
}

@media (max-width: 768px) {
  .site-header { top: 10px; margin-top: 10px; }
  .dock-wrap { gap: 14px; padding: 10px 16px; border-radius: 24px; flex-wrap: wrap; }
  .brand-logo { font-size: 18px; }
  .brand-logo .logo-dot { width: 34px; height: 34px; font-size: 16px; }
  .nav-links { order: 3; width: 100%; justify-content: center; overflow-x: auto; padding-bottom: 4px; }
  .nav-link { font-size: 14px; padding: 7px 14px; }
  .nav-cta { display: none; }
  .article-hero { padding: 100px 0 60px; }
  .article-hero h1 { font-size: 32px; }
  .article-content { padding: 28px 24px; }
  .article-foot { flex-direction: column; align-items: flex-start; }
  .related-grid, .category-grid { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .section { padding: 64px 0; }
  .dock-wrap { border-radius: 20px; }
  .brand-logo span { display: none; }
  .brand-logo .logo-dot { display: inline-flex; }
  .brand-logo { font-size: 16px; }
  .nav-links { gap: 0; justify-content: flex-start; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-link { font-size: 13px; padding: 6px 12px; white-space: nowrap; }
  .article-meta { gap: 14px; font-size: 13px; }
  .article-content { padding: 22px 18px; font-size: 15px; }
  .cta-box { padding: 40px 22px; }
  .cta-box .btns { flex-direction: column; }
  .cta-box .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #6d5dfc;
            --primary-dark: #5747d9;
            --accent: #22d3ee;
            --bg: #0a0e1a;
            --bg-soft: #101627;
            --card: #151d30;
            --card-hover: #1a243a;
            --text: #e6eaf2;
            --muted: #94a3b8;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 60px rgba(0, 0, 0, 0.45);
            --transition: all 0.3s ease;
            --container: 1200px;
            --header-h: 76px;
        }

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

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

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ========== 通用容器 ========== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 8px 24px rgba(109, 93, 252, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(109, 93, 252, 0.5);
            color: #fff;
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.16);
            color: var(--text);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.28);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(109, 93, 252, 0.6);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: rgba(109, 93, 252, 0.1);
            border-color: var(--primary);
            transform: translateY(-2px);
            color: var(--primary);
        }

        .btn-light {
            background: #fff;
            color: #0a0e1a;
        }

        .btn-light:hover {
            background: #dbeafe;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* ========== 徽章 / 标签 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(109, 93, 252, 0.16);
            color: #b4a4ff;
            border: 1px solid rgba(109, 93, 252, 0.3);
            line-height: 1.4;
        }

        .badge-accent {
            background: rgba(34, 211, 238, 0.12);
            color: #67e8f9;
            border-color: rgba(34, 211, 238, 0.3);
        }

        .badge-warm {
            background: rgba(251, 191, 36, 0.12);
            color: #fbbf24;
            border-color: rgba(251, 191, 36, 0.3);
        }

        .badge-success {
            background: rgba(52, 211, 153, 0.12);
            color: #34d399;
            border-color: rgba(52, 211, 153, 0.3);
        }

        /* ========== 导航（浮动 Dock） ========== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            pointer-events: none;
            padding: 0 20px;
        }

        .nav-dock {
            pointer-events: auto;
            max-width: 1180px;
            margin: 0 auto;
            background: rgba(13, 18, 32, 0.72);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            box-shadow: 0 16px 50px rgba(0, 0, 0, 0.45);
            transition: var(--transition);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 20px;
            min-height: 64px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-dot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(109, 93, 252, 0.5);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.04);
            padding: 4px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .nav-link {
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--muted);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 16px rgba(109, 93, 252, 0.35);
        }

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

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            cursor: pointer;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        /* ========== Hero 首屏 ========== */
        .hero-section {
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            min-height: 700px;
            display: flex;
            align-items: center;
            padding-top: 140px;
            padding-bottom: 80px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.35) 0%, rgba(10, 14, 26, 0.78) 55%, var(--bg) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
            padding: 0 24px;
        }

        .hero-content .badge {
            margin-bottom: 24px;
        }

        .hero-content h1 {
            font-size: clamp(36px, 5vw, 56px);
            line-height: 1.18;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(230, 234, 242, 0.8);
            max-width: 620px;
            margin: 0 auto 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 18px 32px;
            min-width: 160px;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .stat-item strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 2px;
        }

        .stat-item span {
            font-size: 14px;
            color: var(--muted);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-soft);
        }

        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            background: rgba(34, 211, 238, 0.1);
            padding: 4px 16px;
            border-radius: 999px;
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .section-head h2 {
            font-size: clamp(28px, 3.5vw, 40px);
            line-height: 1.25;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ========== 频道分类 ========== */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .channel-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 26px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .channel-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .channel-card:hover::before {
            opacity: 1;
        }

        .channel-card:hover {
            background: var(--card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .channel-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 20px;
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.18), rgba(34, 211, 238, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
        }

        .channel-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

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

        .link-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .link-more:hover {
            gap: 10px;
            color: #fff;
        }

        /* ========== 教程卡片 ========== */
        .tutorial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .tutorial-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .tutorial-card:hover {
            background: var(--card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .tutorial-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .tutorial-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .tutorial-card:hover .tutorial-cover img {
            transform: scale(1.05);
        }

        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: rgba(109, 93, 252, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 8px 30px rgba(109, 93, 252, 0.5);
            transition: var(--transition);
            opacity: 0.9;
        }

        .tutorial-card:hover .play-btn {
            transform: translate(-50%, -50%) scale(1.1);
            background: var(--primary);
        }

        .tutorial-cover .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(10, 14, 26, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .tutorial-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tutorial-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

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

        .tutorial-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: #fff;
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .tutorial-body h3:hover {
            color: var(--accent);
        }

        .tutorial-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            margin-bottom: 16px;
            flex: 1;
        }

        /* ========== 学习路径 ========== */
        .path-section {
            background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 30%, var(--bg) 100%);
        }

        .path-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: path-step;
        }

        .path-step {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            position: relative;
            transition: var(--transition);
        }

        .path-step:hover {
            background: var(--card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 16px;
            font-size: 18px;
            font-weight: 800;
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.2), rgba(34, 211, 238, 0.1));
            color: var(--accent);
            margin-bottom: 20px;
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .path-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .path-step p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            margin-bottom: 14px;
        }

        .path-step ul {
            display: grid;
            gap: 8px;
        }

        .path-step ul li {
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .path-step ul li i {
            color: var(--accent);
            font-size: 11px;
        }

        /* ========== 精选专题 ========== */
        .featured-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .featured-image {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .featured-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(109, 93, 252, 0.1), transparent 60%);
        }

        .featured-content {
            padding: 20px 0;
        }

        .featured-content .section-tag {
            margin-bottom: 16px;
        }

        .featured-content h2 {
            font-size: clamp(26px, 3vw, 38px);
            line-height: 1.3;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .featured-content > p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
            margin-bottom: 24px;
        }

        .feature-list {
            display: grid;
            gap: 14px;
            margin-bottom: 28px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            line-height: 1.6;
            color: rgba(230, 234, 242, 0.82);
        }

        .feature-list li i {
            color: var(--accent);
            margin-top: 5px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-soft);
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }

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

        .faq-item[open] {
            border-color: rgba(109, 93, 252, 0.4);
            background: var(--card-hover);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            list-style: none;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item summary:hover {
            color: var(--accent);
        }

        .faq-item p {
            padding: 0 24px 22px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--muted);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 60px 0 100px;
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(109, 93, 252, 0.2), rgba(34, 211, 238, 0.08));
            border: 1px solid rgba(109, 93, 252, 0.3);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -60%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(109, 93, 252, 0.12);
            filter: blur(60px);
        }

        .cta-box h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(230, 234, 242, 0.8);
            max-width: 520px;
            margin: 0 auto 28px;
            position: relative;
        }

        .cta-box .btn {
            position: relative;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-soft);
            border-top: 1px solid var(--border);
            padding: 72px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: grid;
            gap: 12px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--primary);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-col ul li a:hover i {
            color: var(--accent);
        }

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

        .footer-contact li i {
            color: var(--accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding-top: 28px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-bottom p:last-child {
            color: rgba(148, 163, 184, 0.6);
        }

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

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

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

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

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

            .featured-image img {
                min-height: 300px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 72px 0;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                background: rgba(13, 18, 32, 0.96);
                backdrop-filter: blur(24px);
                border: 1px solid var(--border);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links .nav-link {
                padding: 14px 18px;
                border-radius: 12px;
                text-align: center;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-inner {
                min-height: 60px;
                padding: 12px 16px;
            }

            .hero-section {
                min-height: auto;
                padding-top: 140px;
                padding-bottom: 64px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-stats {
                gap: 10px;
            }

            .stat-item {
                padding: 14px 20px;
                min-width: 130px;
            }

            .stat-item strong {
                font-size: 22px;
            }

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

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .cta-box {
                padding: 44px 24px;
            }

            .faq-item summary {
                font-size: 15px;
                padding: 18px 18px;
            }

            .faq-item p {
                padding: 0 18px 18px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

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

            .logo-dot {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .nav-actions .btn {
                display: none;
            }

            .section {
                padding: 60px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }

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

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

            .hero-content p {
                font-size: 15px;
            }

            .channel-card {
                padding: 28px 20px;
            }

            .tutorial-body {
                padding: 18px 18px 20px;
            }

            .path-step {
                padding: 28px 22px;
            }

            .feature-list li {
                font-size: 14px;
            }

            .cta-box {
                padding: 36px 18px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .footer-bottom p {
                font-size: 12px;
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        @media (max-width: 420px) {
            .nav-dock {
                border-radius: 18px;
            }

            .nav-inner {
                gap: 8px;
                padding: 10px 12px;
            }

            .brand-logo {
                font-size: 16px;
            }

            .hero-section {
                padding-top: 130px;
            }

            .hero-actions .btn {
                font-size: 14px;
            }

            .stat-item {
                min-width: 110px;
                padding: 12px 14px;
            }

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

            .stat-item span {
                font-size: 13px;
            }

            .tutorial-grid {
                gap: 20px;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #7c6cf0;
            --primary-light: #9b8ef8;
            --primary-dark: #5d4be0;
            --accent: #f0b35c;
            --accent-light: #ffc97d;
            --bg-deep: #070b15;
            --bg-body: #0a0f1d;
            --bg-panel: #101929;
            --bg-card: #141f35;
            --bg-hover: #1b2942;
            --border: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --text-main: #eef2f8;
            --text-body: #c2cbdb;
            --text-weak: #8e9aaf;
            --text-faint: #5d6980;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-w: 1200px;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font);
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
            outline: none;
            border: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            line-height: 1.3;
            font-weight: 700;
        }

        ::selection {
            background: rgba(124, 108, 240, 0.45);
            color: #fff;
        }

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        /* ===== 通用按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(124, 108, 240, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(124, 108, 240, 0.45);
        }
        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-accent {
            background: var(--accent);
            color: #17120a;
            box-shadow: 0 6px 20px rgba(240, 179, 92, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(240, 179, 92, 0.42);
        }
        .btn-accent:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-main);
            border-color: var(--border-light);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: translateY(0);
        }

        /* ===== 标签 ===== */
        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            background: rgba(124, 108, 240, 0.15);
            color: var(--primary-light);
            letter-spacing: 0.5px;
            border: 1px solid rgba(124, 108, 240, 0.3);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-body);
            border: 1px solid var(--border);
        }
        .tag.accent {
            background: rgba(240, 179, 92, 0.15);
            color: var(--accent);
            border-color: rgba(240, 179, 92, 0.35);
        }
        .tag.primary {
            background: rgba(124, 108, 240, 0.18);
            color: var(--primary-light);
            border-color: rgba(124, 108, 240, 0.35);
        }

        /* ===== Header / 浮动 Dock 导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 200;
            padding: 0 16px;
            margin-top: 16px;
        }

        .nav-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: 1180px;
            margin: 0 auto;
            padding: 10px 20px 10px 24px;
            background: rgba(13, 20, 33, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.09);
            box-shadow: 0 14px 44px rgba(0, 0, 0, 0.55);
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(124, 108, 240, 0.45);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.3px;
            color: var(--text-main);
            transition: var(--transition);
        }
        .brand-logo:hover .logo-text {
            color: var(--primary-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.07);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 108, 240, 0.4);
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 7px 16px;
            color: var(--text-weak);
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: rgba(124, 108, 240, 0.12);
            box-shadow: 0 0 0 3px rgba(124, 108, 240, 0.18);
        }
        .nav-search i {
            font-size: 14px;
        }
        .nav-search input {
            width: 110px;
            font-size: 14px;
            color: var(--text-main);
            background: transparent;
        }
        .nav-search input::placeholder {
            color: var(--text-weak);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: var(--text-body);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== 内页 Banner ===== */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            padding: 80px 0 60px;
            text-align: center;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 21, 0.72) 0%, rgba(7, 11, 21, 0.82) 55%, var(--bg-body) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 20px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.09);
            border: 1px solid rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            color: var(--accent-light);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .page-banner h1 {
            font-size: clamp(36px, 5vw, 54px);
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 14px;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .banner-sub {
            max-width: 640px;
            margin: 0 auto 26px;
            font-size: 17px;
            color: var(--text-body);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .breadcrumb a {
            color: var(--text-weak);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb i {
            font-size: 12px;
        }
        .breadcrumb span {
            color: var(--text-main);
        }

        /* ===== Section 基础 ===== */
        .section {
            padding: 90px 0;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 44px;
        }
        .section-head.center {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .section-head h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            margin-top: 10px;
            letter-spacing: 0.5px;
        }
        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-weak);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .section-more:hover {
            color: var(--primary-light);
            border-color: rgba(124, 108, 240, 0.4);
            background: rgba(124, 108, 240, 0.08);
            transform: translateX(3px);
        }

        /* ===== 精选聚焦板块 ===== */
        .featured-section {
            background: var(--bg-body);
            padding-top: 60px;
        }
        .featured-card {
            display: grid;
            grid-template-columns: 1.15fr 1fr;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(124, 108, 240, 0.35);
        }
        .featured-media {
            position: relative;
            min-height: 360px;
            overflow: hidden;
        }
        .featured-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .featured-card:hover .featured-media img {
            transform: scale(1.04);
        }
        .featured-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 55%, rgba(20, 31, 53, 0.35));
        }
        .featured-play {
            position: absolute;
            top: 22px;
            left: 22px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 16px;
            background: rgba(124, 108, 240, 0.9);
            color: #fff;
            font-size: 20px;
            box-shadow: 0 6px 22px rgba(124, 108, 240, 0.5);
            backdrop-filter: blur(6px);
        }
        .featured-body {
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 18px;
        }
        .featured-body h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.45;
            transition: var(--transition);
        }
        .featured-card:hover .featured-body h3 {
            color: var(--primary-light);
        }
        .featured-body p {
            color: var(--text-body);
            font-size: 15.5px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .featured-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: auto;
        }
        .featured-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .featured-meta .btn {
            margin-left: auto;
        }

        /* ===== 最新资讯网格 ===== */
        .news-section {
            background: var(--bg-deep);
            position: relative;
        }
        .news-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 70%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(124, 108, 240, 0.4), transparent);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(124, 108, 240, 0.4);
        }
        .news-media {
            position: relative;
            display: block;
            height: 200px;
            overflow: hidden;
        }
        .news-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .news-card:hover .news-media img {
            transform: scale(1.06);
        }
        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(13, 20, 33, 0.7);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 600;
        }
        .news-date {
            position: absolute;
            bottom: 12px;
            left: 14px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(13, 20, 33, 0.65);
            backdrop-filter: blur(6px);
            font-size: 13px;
            color: var(--text-body);
        }
        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .news-body h3 a {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body h3 a:hover {
            color: var(--primary-light);
        }
        .news-body p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .news-foot span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-faint);
        }
        .news-foot .read-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
        }
        .news-foot .read-link i {
            transition: transform 0.3s;
        }
        .news-foot .read-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 发展历程时间线 ===== */
        .timeline-section {
            background: var(--bg-body);
        }
        .timeline {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 26px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), rgba(124, 108, 240, 0.2));
        }
        .timeline-item {
            position: relative;
            padding-left: 76px;
            margin-bottom: 40px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: 13px;
            top: 6px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-body);
            border: 3px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 5px rgba(124, 108, 240, 0.15);
        }
        .timeline-dot i {
            font-size: 11px;
            color: var(--primary-light);
        }
        .timeline-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px 30px;
            transition: var(--transition);
        }
        .timeline-card:hover {
            border-color: rgba(124, 108, 240, 0.4);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .timeline-year {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: rgba(124, 108, 240, 0.15);
            color: var(--primary-light);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .timeline-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-card p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(124, 108, 240, 0.12), rgba(10, 15, 29, 0.6)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(10, 15, 29, 0.55);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: rgba(124, 108, 240, 0.45);
            box-shadow: var(--shadow-md);
        }
        .stat-num {
            font-size: 44px;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 15px;
            color: var(--text-body);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(124, 108, 240, 0.35);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            list-style: none;
            background: rgba(255, 255, 255, 0.02);
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.35s;
            flex-shrink: 0;
        }
        .faq-item[open] summary {
            color: var(--primary-light);
            background: rgba(124, 108, 240, 0.06);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-item .faq-body {
            padding: 0 28px 24px;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.85;
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: 80px 0 100px;
            background: var(--bg-body);
        }
        .cta-panel {
            background: linear-gradient(135deg, rgba(124, 108, 240, 0.2) 0%, rgba(13, 20, 33, 0.9) 60%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(124, 108, 240, 0.3);
            padding: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(124, 108, 240, 0.15);
            filter: blur(60px);
        }
        .cta-copy h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-copy p {
            color: var(--text-body);
            font-size: 16px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 44px;
            margin-bottom: 50px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 18px;
        }
        .footer-brand .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            font-size: 18px;
        }
        .footer-brand p {
            color: var(--text-weak);
            font-size: 14.5px;
            line-height: 1.85;
            margin-top: 14px;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-main);
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-weak);
            font-size: 14.5px;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-col ul a i {
            font-size: 11px;
            color: var(--text-faint);
            transition: var(--transition);
        }
        .footer-col ul a:hover i {
            color: var(--primary-light);
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-weak);
            font-size: 14.5px;
            margin-bottom: 14px;
        }
        .footer-contact li i {
            color: var(--primary-light);
            margin-top: 3px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            color: var(--text-faint);
            font-size: 14px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-media {
                min-height: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
            .nav-search {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 64px 0;
            }
            .site-header {
                top: 12px;
                margin-top: 12px;
                padding: 0 12px;
            }
            .nav-dock {
                border-radius: 22px;
                padding: 10px 14px;
            }
            .nav-links {
                position: fixed;
                top: 76px;
                left: 16px;
                right: 16px;
                background: rgba(13, 20, 33, 0.97);
                backdrop-filter: blur(20px);
                border-radius: 18px;
                border: 1px solid var(--border);
                padding: 14px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                margin: 0;
                z-index: 199;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-link {
                display: flex;
                align-items: center;
                padding: 14px 18px;
                border-radius: 12px;
                font-size: 16px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-right {
                margin-left: auto;
            }
            .featured-body {
                padding: 28px;
            }
            .featured-body h3 {
                font-size: 20px;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px;
            }
            .cta-actions {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                justify-content: center;
            }
            .timeline-card {
                padding: 22px;
            }
        }

        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item {
                padding: 22px 14px;
            }
            .stat-num {
                font-size: 34px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .page-banner {
                min-height: 340px;
                padding: 70px 0 50px;
            }
            .featured-body {
                padding: 22px;
            }
            .cta-panel {
                padding: 28px 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }