/* roulang page: index */
:root{
  --primary:#2A5CE0;
  --primary-deep:#1E45B4;
  --primary-soft:#EAF0FE;
  --teal:#12B5A6;
  --teal-soft:#E4F7F4;
  --amber:#F59B24;
  --amber-soft:#FEF3E2;
  --page:#F5F7FA;
  --surface:#FFFFFF;
  --surface-2:#F0F3F8;
  --ink:#141C28;
  --muted:#5B6779;
  --weak:#8A94A6;
  --line:#E5E9F2;
  --line-soft:#EEF1F6;
  --success:#1C9E6B;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 1px 2px rgba(20,28,40,.05),0 6px 18px rgba(20,28,40,.06);
  --shadow-hover:0 10px 28px rgba(20,28,40,.10);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid rgba(42,92,224,.45);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.section-tight{padding:40px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-head .sub{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;white-space:nowrap;transition:color .2s ease}
.text-link .arrow{transition:transform .2s ease}
.text-link:hover{color:var(--primary-deep)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(20,28,40,.04)}
.brand-row{display:flex;align-items:center;gap:26px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#2A5CE0,#5B86F0);display:grid;place-items:center;color:#fff;font-size:17px;font-weight:700;letter-spacing:0}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary)}
.search-box{flex:1;max-width:430px;position:relative;display:flex;align-items:center}
.search-box input{
  width:100%;height:42px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 18px 0 42px;font-size:14px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:var(--weak)}
.search-box input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,92,224,.12)}
.search-box svg{position:absolute;left:15px;width:17px;height:17px;stroke:var(--weak);fill:none;stroke-width:2}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:12px;padding:11px 22px;border:1px solid transparent;cursor:pointer;transition:all .2s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(42,92,224,.18)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(42,92,224,.26)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.btn-soft{background:var(--primary-soft);color:var(--primary)}
.btn-soft:hover{background:#DCE7FD;color:var(--primary-deep)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:10px}
.channel-row{border-top:1px solid var(--line-soft)}
.channel-nav{display:flex;align-items:center;gap:30px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;height:48px;font-size:15px;color:var(--muted);white-space:nowrap;transition:color .2s ease}
.channel-link:hover{color:var(--ink)}
.channel-link.active{color:var(--primary);font-weight:600}
.channel-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;background:var(--primary)}

/* ============ Hero ============ */
.hero{padding:28px 0 4px}
.hero-panel{
  position:relative;border-radius:28px;overflow:hidden;min-height:520px;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
  padding:56px;display:flex;align-items:center;box-shadow:var(--shadow);
}
.hero-panel::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.95) 40%,rgba(255,255,255,.35) 72%,rgba(255,255,255,0) 100%)}
.hero-inner{position:relative;z-index:2;max-width:600px;display:flex;flex-direction:column;align-items:flex-start;gap:18px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;line-height:1.4}
.pill-teal{background:var(--teal-soft);color:#0B8579}
.pill-dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(18,181,166,.18)}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.7}
.hero-actions{display:flex;gap:12px;margin-top:6px;flex-wrap:wrap}
.hero-status{
  position:absolute;right:28px;bottom:28px;z-index:3;display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.9);border-radius:14px;
  padding:14px 22px;box-shadow:var(--shadow);
}
.status-item{display:flex;flex-direction:column;gap:2px;min-width:0}
.status-item .k{font-size:12px;color:var(--weak);line-height:1.5}
.status-item .v{font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;white-space:nowrap}
.status-sep{width:1px;height:26px;background:var(--line)}

/* ============ 登录指引 ============ */
.guide-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:stretch}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9D8FA}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--primary-soft);color:var(--primary);font-size:14px;font-weight:700;margin-bottom:14px}
.step-card h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.75}
.help-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.help-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.help-card .hint{font-size:13px;color:var(--muted);margin-bottom:16px}
.help-list{display:flex;flex-direction:column;gap:2px;margin-bottom:18px}
.help-list li{border-bottom:1px solid var(--line-soft)}
.help-list li:last-child{border-bottom:0}
.help-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 2px;font-size:14px;color:var(--ink);transition:color .2s ease,padding-left .2s ease}
.help-list a:hover{color:var(--primary);padding-left:6px}
.help-list a span.ar{color:var(--weak)}
.help-card .btn{margin-top:auto;width:100%}

/* ============ 横滑片库 ============ */
.scroll-tools{display:flex;align-items:center;gap:8px}
.round-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;color:var(--muted);cursor:pointer;transition:all .2s ease}
.round-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 4px 12px rgba(42,92,224,.14)}
.scroll-row{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 12px;scrollbar-width:none}
.scroll-row::-webkit-scrollbar{display:none}
.cover-card{flex:0 0 184px;scroll-snap-align:start;min-width:0}
.cover-thumb{position:relative;aspect-ratio:2/3;border-radius:var(--radius);overflow:hidden;background:var(--surface-2);box-shadow:var(--shadow)}
.cover-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cover-thumb::after{content:"";position:absolute;inset:0;background:rgba(42,92,224,.14);opacity:0;transition:opacity .25s ease}
.play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-46%) scale(.9);width:46px;height:46px;border-radius:50%;background:#fff;display:grid;place-items:center;opacity:0;transition:all .25s ease;z-index:2;box-shadow:0 6px 18px rgba(20,28,40,.22)}
.play-btn::before{content:"";width:0;height:0;border-left:12px solid var(--primary);border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:3px}
.cover-card:hover .cover-thumb img{transform:scale(1.04)}
.cover-card:hover .cover-thumb::after{opacity:1}
.cover-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.cover-name{margin-top:10px;font-size:15px;font-weight:600;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cover-meta{margin-top:2px;font-size:12px;color:var(--weak);line-height:1.5}

/* ============ 热播推荐 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:22px;align-items:stretch}
.feature-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:340px;box-shadow:var(--shadow);display:flex;align-items:flex-end;background:var(--surface-2)}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-main:hover img{transform:scale(1.03)}
.feature-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,28,40,0) 35%,rgba(20,28,40,.78) 100%)}
.feature-body{position:relative;z-index:2;padding:26px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.feature-body h3{color:#fff;font-size:24px;font-weight:700;line-height:1.35}
.feature-body p{color:rgba(255,255,255,.82);font-size:14px;line-height:1.7;max-width:440px}
.feature-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag-solid{font-size:12px;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.18);color:#fff;line-height:1.4}
.tag-amber{position:absolute;right:18px;top:18px;z-index:3;background:var(--amber);color:#fff;font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;line-height:1.4;box-shadow:0 4px 12px rgba(245,155,36,.32)}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mini-card{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9D8FA}
.mini-card img{width:64px;height:64px;border-radius:12px;object-fit:cover;flex-shrink:0}
.mini-body{min-width:0}
.mini-body .idx{font-size:12px;color:var(--weak);letter-spacing:.06em;display:block;line-height:1.4}
.mini-body h4{font-size:15px;font-weight:600;line-height:1.45;margin:2px 0 4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.mini-body .meta{font-size:12px;color:var(--weak);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ============ 分类入口 ============ */
.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.entry-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;display:flex;flex-direction:column}
.entry-card:hover{border-color:#BFD2F7;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.entry-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.entry-head h3{font-size:19px;font-weight:700;line-height:1.4}
.entry-icon{width:36px;height:36px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:15px;font-weight:700;flex-shrink:0}
.entry-desc{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:14px}
.entry-list{display:flex;flex-direction:column;margin-bottom:16px}
.entry-list li{border-bottom:1px solid var(--line-soft)}
.entry-list li:last-child{border-bottom:0}
.entry-list a{display:flex;align-items:center;gap:10px;padding:10px 0;font-size:14px;color:var(--ink);transition:color .2s ease}
.entry-list a:hover{color:var(--primary)}
.entry-list .n{font-size:12px;color:var(--weak);font-variant-numeric:tabular-nums;flex-shrink:0}
.entry-list .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.entry-list .tm{font-size:12px;color:var(--weak);flex-shrink:0}
.entry-card .text-link{margin-top:auto}

/* ============ 最新信息 CMS ============ */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.news-card{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9D8FA}
.news-card:hover h3{color:var(--primary)}
.news-card h3{font-size:17px;font-weight:600;line-height:1.55;transition:color .2s ease;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--weak);margin-top:auto;padding-top:6px}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--weak)}
.news-meta .arrow{margin-left:auto;color:var(--primary);font-size:14px;transition:transform .2s ease}
.news-card:hover .news-meta .arrow{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:500;line-height:1.4;padding:5px 11px;border-radius:999px}
.badge-soft{background:var(--primary-soft);color:var(--primary)}
.badge-teal{background:var(--teal-soft);color:#0B8579}
.empty-state{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:240px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:40px 24px;text-align:center}
.empty-icon{width:64px;height:64px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;color:var(--weak);font-size:24px}
.empty-state p{font-size:14px;color:var(--muted)}

/* ============ 安全与体验 ============ */
.secure-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow)}
.secure-copy h2{font-size:27px;line-height:1.35;font-weight:700;margin-bottom:12px}
.secure-copy p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:18px}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink);line-height:1.7}
.check-list .tick{width:20px;height:20px;border-radius:50%;background:var(--teal-soft);color:#0B8579;display:grid;place-items:center;font-size:11px;font-weight:700;flex-shrink:0;margin-top:3px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-card{background:var(--surface-2);border-radius:var(--radius);padding:20px;border:1px solid var(--line-soft)}
.stat-card .num{font-size:26px;font-weight:700;color:var(--primary);line-height:1.3;letter-spacing:-.01em}
.stat-card .num small{font-size:13px;font-weight:600;color:var(--muted);margin-left:2px}
.stat-card .label{font-size:13px;color:var(--muted);margin-top:4px}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:#C9D8FA}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:20px 22px;font-size:15px;font-weight:600;line-height:1.6;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{margin-left:auto;width:22px;height:22px;position:relative;flex-shrink:0;transition:transform .25s ease}
.faq-item summary .plus::before,.faq-item summary .plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--weak);border-radius:2px;transition:background .2s ease}
.faq-item summary .plus::before{width:13px;height:2px;transform:translate(-50%,-50%)}
.faq-item summary .plus::after{width:2px;height:13px;transform:translate(-50%,-50%)}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open] summary .plus::before,.faq-item[open] summary .plus::after{background:var(--primary)}
.faq-answer{padding:0 22px 20px 26px;font-size:14px;color:var(--muted);line-height:1.85;border-left:3px solid var(--primary);margin-left:22px;border-radius:0 0 0 4px}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;background:var(--primary-soft);border-radius:28px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(42,92,224,.05) 0 2px,transparent 2px 16px);pointer-events:none}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:8px}
.cta-copy p{font-size:14px;color:var(--muted);line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface-2);border-top:1px solid var(--line);margin-top:56px;padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin:14px 0 16px;max-width:280px}
.social-row{display:flex;gap:10px}
.social-dot{width:34px;height:34px;border-radius:50%;background:#E4E9F2;display:grid;place-items:center;color:var(--muted);font-size:12px;font-weight:600;transition:all .2s ease}
.social-dot:hover{background:var(--primary);color:#fff}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--ink)}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.9}
.footer-bottom{border-top:1px solid #E1E6F0;margin-top:32px;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-bottom p{font-size:12.5px;color:var(--weak);line-height:1.7}
.footer-bottom .tech{font-size:12.5px;color:var(--weak)}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .hero h1{font-size:34px}
  .guide-wrap{grid-template-columns:1fr}
  .secure-wrap{grid-template-columns:1fr;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .feature-grid{grid-template-columns:1fr}
  .feature-main{min-height:300px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:40px 0}
  .brand-row{height:62px;gap:14px}
  .logo-text{font-size:16px}
  .search-box{display:none}
  .brand-actions .btn-ghost{display:none}
  .hero{padding:16px 0 0}
  .hero-panel{min-height:0;padding:30px 22px 130px;border-radius:22px;background-position:center top;align-items:flex-start}
  .hero-panel::before{background:linear-gradient(180deg,#fff 0%,rgba(255,255,255,.96) 46%,rgba(255,255,255,.55) 78%,rgba(255,255,255,.1) 100%)}
  .hero h1{font-size:27px;line-height:1.32}
  .hero-sub{font-size:15px}
  .hero-inner{gap:14px}
  .hero-actions{width:100%}
  .hero-actions .btn{flex:1 1 0;min-width:132px}
  .hero-status{left:22px;right:22px;bottom:20px;gap:12px;padding:12px 14px;justify-content:space-between}
  .status-item .v{font-size:13px;white-space:normal}
  .status-sep{height:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
  .step-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 0}
  .secure-copy h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .site-footer{margin-top:40px;padding:36px 0 20px}
  .cover-card{flex:0 0 156px}
  .mini-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .brand-actions .btn-primary{padding:9px 15px;font-size:14px}
  .channel-nav{gap:20px}
  .channel-link{font-size:14px}
  .hero h1{font-size:24px}
  .hero-status{flex-wrap:wrap;justify-content:flex-start;gap:10px}
  .status-sep{display:none}
  .status-item{min-width:calc(50% - 6px)}
  .stat-grid{grid-template-columns:1fr}
  .feature-body h3{font-size:20px}
  .faq-item summary{padding:16px 16px;font-size:14px}
  .faq-answer{margin-left:16px;padding:0 16px 16px 16px}
  .cover-card{flex:0 0 146px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --primary:#2A5CE0;
  --primary-deep:#1E45B4;
  --primary-soft:#EAF0FE;
  --teal:#12B5A6;
  --teal-soft:#E4F7F4;
  --amber:#F59B24;
  --amber-soft:#FDF2E2;
  --page:#F5F7FA;
  --surface:#FFFFFF;
  --surface-2:#F0F3F8;
  --ink:#141C28;
  --muted:#5B6779;
  --faint:#8A94A6;
  --line:#E5E9F2;
  --line-soft:#EEF1F6;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 2px rgba(20,28,40,.05),0 6px 18px rgba(20,28,40,.06);
  --shadow-hover:0 10px 28px rgba(20,28,40,.10);
  --container:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid rgba(42,92,224,.5);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(20,28,40,.05);
}
.brand-row{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,#3E6EF0,#1E45B4);
  color:#fff;font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.logo-text{font-size:18px;font-weight:700;line-height:1.2;white-space:nowrap;color:var(--ink)}
.logo-text em{font-style:normal;color:var(--primary)}
.search-box{position:relative;flex:1 1 auto;max-width:400px;display:none}
.search-box svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;fill:none;stroke:var(--faint);stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round;
}
.search-box input{
  width:100%;height:42px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface-2);
  padding:0 16px 0 40px;font-size:14px;color:var(--ink);
  transition:border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(42,92,224,.14);
}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
@media(min-width:768px){.search-box{display:block}}

.channel-row{background:var(--surface);border-top:1px solid var(--line-soft)}
.channel-nav{display:flex;align-items:stretch;gap:30px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:flex;align-items:center;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease-out;
}
.channel-link:hover{color:var(--ink)}
.channel-link.active{color:var(--primary);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:5px;width:26px;height:3px;border-radius:999px;background:var(--primary);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:all .2s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(42,92,224,.18)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(42,92,224,.24)}
.btn-primary:active{transform:translateY(0);background:var(--primary-deep)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-more span{transition:transform .2s ease-out}
.link-more:hover span{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1.5;
}
.badge-primary{background:var(--primary-soft);color:var(--primary)}
.badge-teal{background:var(--teal-soft);color:#0B8B7E}
.badge-amber{background:var(--amber-soft);color:#B76C06}
.badge-grey{background:var(--surface-2);color:var(--muted)}

/* ---------- article layout ---------- */
.article-wrap{padding:26px 0 56px}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--faint);margin-bottom:22px;
}
.breadcrumb a{color:var(--faint);transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C7CEDC}
.breadcrumb .current{
  color:var(--ink);max-width:min(100%,520px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

.article-layout{display:grid;grid-template-columns:1fr;gap:30px}
.article-main{min-width:0}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px}
}

.article-title{
  font-size:29px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
  max-width:820px;margin-bottom:16px;
}
@media(min-width:768px){.article-title{font-size:38px}}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--muted);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C7CEDC;flex:0 0 auto}
.article-cover{
  max-width:760px;margin:24px auto 0;
  border-radius:16px;overflow:hidden;
  aspect-ratio:16/9;background:var(--surface-2);
  box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

.article-body{
  max-width:760px;margin:32px auto 0;
  font-size:16px;line-height:1.9;color:var(--ink);
  word-break:break-word;
}
.article-body p{margin-bottom:20px}
.article-body h2{
  position:relative;font-size:25px;line-height:1.35;font-weight:700;
  margin:40px 0 14px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;
  width:4px;height:20px;border-radius:999px;background:var(--primary);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:28px 0 10px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 8px}
.article-body ul{list-style:disc;padding-left:22px;margin-bottom:20px}
.article-body ol{list-style:decimal;padding-left:22px;margin-bottom:20px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:600}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:8px}
.article-body blockquote{
  margin:24px 0;padding:18px 20px;
  background:var(--primary-soft);border-left:4px solid var(--primary);
  border-radius:12px;color:#2E4675;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-deep)}
.article-body code{
  background:var(--surface-2);border-radius:6px;padding:2px 6px;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;
}
.article-body pre{
  background:var(--surface-2);border-radius:12px;padding:16px;
  overflow-x:auto;margin:20px 0;
}
.article-body pre code{background:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--surface-2);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

.empty-state{
  max-width:760px;margin:32px auto 0;
  padding:56px 24px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-card);
}
.empty-icon{
  width:64px;height:64px;border-radius:50%;
  background:var(--surface-2);color:var(--faint);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;font-size:22px;letter-spacing:2px;
}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:18px}

.article-tags{
  max-width:760px;margin:32px auto 0;
  display:flex;flex-wrap:wrap;gap:8px;
  padding-top:22px;border-top:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}

.article-actions{
  max-width:760px;margin:20px auto 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);cursor:pointer;transition:all .2s ease-out;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- sidebar ---------- */
.article-side{display:none}
@media(min-width:1024px){.article-side{display:block}}
.side-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card h3::before{
  content:"";width:4px;height:15px;border-radius:999px;background:var(--primary);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:14px;color:var(--muted);
  transition:all .2s ease-out;
}
.toc-list a:hover{color:var(--primary);background:var(--primary-soft);transform:translateX(2px)}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-item{display:flex;gap:10px;align-items:flex-start}
.hot-num{
  flex:0 0 auto;width:20px;font-size:13px;font-weight:600;
  color:#C0C8D8;line-height:1.7;
}
.hot-item:nth-child(1) .hot-num,.hot-item:nth-child(2) .hot-num,.hot-item:nth-child(3) .hot-num{color:var(--primary)}
.hot-item a{font-size:14px;line-height:1.7;color:var(--ink);transition:color .2s ease-out}
.hot-item a:hover{color:var(--primary)}

.side-note{
  background:var(--primary-soft);border:1px solid #D6E2FB;
  border-radius:16px;padding:18px 20px;
}
.side-note h3{font-size:15px;font-weight:700;margin-bottom:8px}
.side-note p{font-size:13px;line-height:1.8;color:#3D5486;margin-bottom:14px}

/* ---------- section common ---------- */
.section{padding:44px 0 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:22px;flex-wrap:wrap;
}
.section-head h2{font-size:24px;font-weight:700;line-height:1.3}
@media(min-width:768px){.section-head h2{font-size:27px}}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}

.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 12px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.movie-card{
  flex:0 0 auto;width:176px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
@media(min-width:768px){.movie-card{width:228px}}
.movie-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CBD8F5}
.movie-card .cover{aspect-ratio:2/3;overflow:hidden;background:var(--surface-2)}
.movie-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.movie-card:hover .cover img{transform:scale(1.04)}
.movie-card .card-body{padding:12px 14px 14px}
.movie-card .card-title{
  font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.movie-card:hover .card-title{color:var(--primary)}
.movie-card .card-meta{font-size:12px;color:var(--faint);margin-top:4px}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:border-color .2s ease-out;
}
.faq-item:hover{border-color:#CBD8F5}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:15px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;
  color:var(--faint);transition:transform .2s ease-out,color .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--primary)}
.faq-answer{
  padding:0 20px 18px 20px;font-size:14px;line-height:1.85;color:var(--muted);
}
.faq-answer .inner{border-left:3px solid var(--primary);padding-left:14px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--primary-soft);
  border-radius:24px;padding:34px 28px;
  display:flex;align-items:center;justify-content:space-between;
  gap:22px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(42,92,224,.06) 0 2px,transparent 2px 14px);
  opacity:.55;pointer-events:none;
}
.cta-band > *{position:relative}
.cta-band h2{font-size:22px;font-weight:700;line-height:1.35}
@media(min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{font-size:14px;color:#3D5486;margin-top:6px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  background:var(--surface-2);
  border-top:1px solid var(--line);
  margin-top:56px;padding-top:46px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:14px;max-width:280px}
.social-row{display:flex;gap:8px;margin-top:16px}
.social-dot{
  width:32px;height:32px;border-radius:50%;
  background:#E2E7F1;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;transition:all .2s ease-out;
}
.social-dot:hover{background:var(--primary);color:#fff}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;color:var(--muted);
  transition:color .2s ease-out,transform .2s ease-out;
  display:inline-block;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-col p{font-size:13px;line-height:1.85;color:var(--muted)}
.footer-bottom{
  margin-top:36px;padding:18px 0 24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}
.footer-bottom .tech{color:#9AA4B6}

/* ---------- mobile ---------- */
@media(max-width:640px){
  .brand-row{height:58px;gap:10px}
  .logo-text{font-size:15px}
  .logo-mark{width:32px;height:32px;font-size:16px;border-radius:10px}
  .btn-sm{height:34px;padding:0 12px;font-size:13px}
  .channel-nav{gap:18px;height:44px}
  .channel-link{font-size:14px}
  .article-title{font-size:26px}
  .article-body h2{font-size:21px}
  .article-wrap{padding:20px 0 44px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 0}
  .movie-card{width:156px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --primary:#2A5CE0;
  --primary-deep:#1E45B4;
  --primary-soft:#EAF0FE;
  --teal:#12B5A6;
  --teal-soft:#E4F7F4;
  --amber:#F59B24;
  --amber-soft:#FEF2E1;
  --page:#F5F7FA;
  --surface:#FFFFFF;
  --surface-2:#F0F3F8;
  --ink:#141C28;
  --muted:#5B6779;
  --weak:#8A94A6;
  --line:#E5E9F2;
  --line-soft:#EEF1F6;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:12px;
  --shadow-card:0 1px 2px rgba(20,28,40,.05),0 6px 18px rgba(20,28,40,.06);
  --shadow-hover:0 10px 28px rgba(20,28,40,.12);
  --max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
.page-body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,28,40,.04);
}
.brand-row{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;
  box-shadow:0 4px 12px rgba(42,92,224,.28);
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary)}
.search-box{
  display:none;flex:1;max-width:420px;
  align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:var(--surface-2);
  border:1px solid transparent;
  border-radius:999px;
  transition:all .2s ease-out;
}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,92,224,.12)}
.search-box svg{width:17px;height:17px;flex-shrink:0;stroke:var(--weak);fill:none;stroke-width:2;stroke-linecap:round}
.search-box input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--weak)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:all .2s ease-out;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(42,92,224,.22)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(42,92,224,.28)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.btn:focus-visible{outline:2px solid rgba(42,92,224,.5);outline-offset:2px}
.btn:active{transform:translateY(0)}
.channel-row{background:var(--surface);border-bottom:1px solid var(--line)}
.channel-nav{
  display:flex;align-items:center;gap:26px;
  height:48px;overflow-x:auto;
  scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex-shrink:0;
  font-size:15px;color:var(--muted);
  padding:14px 0;white-space:nowrap;
  transition:color .2s ease-out;
}
.channel-link:hover{color:var(--ink)}
.channel-link.active{color:var(--primary);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:var(--primary);
}
@media(min-width:768px){
  .search-box{display:flex}
  .brand-row{gap:24px}
}
@media(max-width:767px){
  .logo-text{font-size:16px}
  .logo-mark{width:30px;height:30px;font-size:15px;border-radius:9px}
  .brand-actions .btn-ghost{display:none}
}

/* ---------- 通用板块 ---------- */
.section{padding:44px 0}
@media(min-width:768px){.section{padding:56px 0}}
@media(min-width:1024px){.section{padding:64px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-title{
  position:relative;padding-left:14px;
  font-size:24px;font-weight:700;line-height:1.3;color:var(--ink);margin:0;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:3px;background:var(--primary);
}
.sec-desc{margin:8px 0 0;font-size:14px;color:var(--muted)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  transition:color .2s ease-out;
}
.text-link span{transition:transform .2s ease-out}
.text-link:hover{color:var(--primary-deep)}
.text-link:hover span{transform:translateX(4px)}

/* ---------- Banner ---------- */
.banner-section{padding:20px 0 0}
@media(min-width:768px){.banner-section{padding:28px 0 0}}
.page-banner{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  min-height:230px;
  display:flex;align-items:center;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 44%,rgba(255,255,255,.28) 100%);
}
.page-banner-inner{position:relative;z-index:1;padding:30px 24px;max-width:610px}
@media(min-width:768px){.page-banner{min-height:250px}.page-banner-inner{padding:38px 40px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;
  background:var(--teal-soft);color:#0C8E83;
}
.page-title{
  margin:14px 0 0;
  font-size:28px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--ink);
}
@media(min-width:768px){.page-title{font-size:38px}}
.page-sub{margin:12px 0 0;font-size:15px;color:var(--muted);max-width:480px}
.hero-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
@media(max-width:519px){
  .hero-actions .btn{flex:1 1 0;min-width:0}
}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}
.chips{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--muted);font-size:14px;white-space:nowrap;
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.chip.is-active:hover{background:var(--primary-deep);color:#fff}
.filter-note{font-size:13px;color:var(--weak)}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:30px}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(3,1fr)}}
.stat-card{
  background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r-card);padding:18px 20px;
  box-shadow:var(--shadow-card);
  transition:all .2s ease-out;
}
.stat-card:hover{border-color:var(--primary-soft);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.stat-label{font-size:13px;color:var(--muted)}
.stat-value{font-size:24px;font-weight:700;color:var(--ink);margin-top:4px;letter-spacing:-.01em}
.stat-value small{font-size:13px;font-weight:500;color:var(--weak);margin-left:4px}
.stat-bar{height:5px;border-radius:999px;background:var(--surface-2);margin-top:12px;overflow:hidden}
.stat-bar i{display:block;height:100%;border-radius:999px;background:var(--primary)}
.stat-bar i.teal{background:var(--teal)}
.stat-bar i.amber{background:var(--amber)}

/* ---------- 海报网格 ---------- */
.poster-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media(min-width:640px){.poster-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}}
@media(min-width:1024px){.poster-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}}
@media(min-width:1280px){.poster-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}
.poster-card{display:block}
.poster-thumb{
  position:relative;aspect-ratio:2/3;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface-2);
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.poster-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.poster-card:hover .poster-thumb{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.poster-card:hover .poster-thumb img{transform:scale(1.05)}
.poster-mask{
  position:absolute;inset:0;background:rgba(255,255,255,.3);
  opacity:0;transition:opacity .2s ease-out;
}
.poster-card:hover .poster-mask{opacity:1}
.poster-play{
  position:absolute;left:50%;top:50%;
  width:46px;height:46px;border-radius:50%;
  background:#fff;display:grid;place-items:center;
  transform:translate(-50%,-50%) scale(.9);
  opacity:0;transition:all .2s ease-out;
  box-shadow:0 8px 20px rgba(20,28,40,.18);
}
.poster-play::after{
  content:"";display:block;margin-left:3px;
  border-style:solid;border-width:8px 0 8px 13px;
  border-color:transparent transparent transparent var(--primary);
}
.poster-card:hover .poster-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:500;line-height:1;
  padding:5px 9px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
}
.badge-amber{background:var(--amber-soft);color:#B8720B}
.badge-teal{background:var(--teal-soft);color:#0C8E83}
.poster-badge{position:absolute;left:10px;top:10px;z-index:2}
.poster-title{margin:10px 0 0;font-size:15px;font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.poster-meta{margin:4px 0 0;font-size:12px;color:var(--weak)}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{
  display:grid;place-items:center;min-width:38px;height:38px;padding:0 12px;
  border-radius:10px;border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--muted);transition:all .2s ease-out;
}
.pager a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.pager .is-current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- 精选合集 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:900px){.feature-grid{grid-template-columns:1.35fr 1fr;gap:26px}}
.feature-main{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:all .2s ease-out;
}
.feature-main:hover{box-shadow:var(--shadow-hover);border-color:var(--primary-soft)}
.feature-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.feature-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.feature-main:hover .feature-cover img{transform:scale(1.04)}
.feature-cover .badge-amber{position:absolute;left:14px;top:14px}
.feature-body{padding:20px 22px 24px}
.feature-body h3{margin:0;font-size:20px;font-weight:700;line-height:1.45;color:var(--ink)}
.feature-body p{margin:10px 0 0;font-size:14px;color:var(--muted);line-height:1.8}
.feature-body .text-link{margin-top:16px}
.feature-list{display:flex;flex-direction:column;gap:12px}
.mini-item{
  display:flex;align-items:center;gap:14px;
  padding:12px;background:#fff;
  border:1px solid var(--line-soft);border-radius:14px;
  box-shadow:0 1px 2px rgba(20,28,40,.04);
  transition:all .2s ease-out;
}
.mini-item:hover{border-color:var(--primary-soft);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.mini-thumb{width:78px;height:78px;flex-shrink:0;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-info{min-width:0}
.mini-info h4{margin:0;font-size:15px;font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini-info p{margin:5px 0 0;font-size:12px;color:var(--weak)}
.mini-num{font-size:13px;font-weight:600;color:var(--weak);margin-left:auto;flex-shrink:0}

/* ---------- 观看流程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r-card);padding:24px 22px;
  box-shadow:var(--shadow-card);
  transition:all .2s ease-out;
}
.step-card:hover{border-color:var(--primary-soft);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-num{
  display:grid;place-items:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  font-size:17px;font-weight:700;
}
.step-card h3{margin:16px 0 0;font-size:17px;font-weight:600;color:var(--ink)}
.step-card p{margin:8px 0 0;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:#CFDAF7}
.faq-item[open]{border-color:#CFDAF7;box-shadow:var(--shadow-card)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:15px;font-weight:600;color:var(--ink);
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--weak);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .2s ease-out;
}
.faq-icon::before{width:13px;height:2px}
.faq-icon::after{width:2px;height:13px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--primary)}
.faq-body{
  padding:0 20px 18px 20px;
  margin-left:20px;
  padding-left:16px;
  border-left:3px solid var(--primary);
  font-size:14px;line-height:1.85;color:var(--muted);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--primary-soft);
  border-radius:24px;
  padding:30px 24px;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
@media(min-width:768px){.cta-band{padding:40px 44px}}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:280px;
  background-image:repeating-linear-gradient(45deg,rgba(42,92,224,.06) 0 8px,transparent 8px 18px);
  border-radius:50%;pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:520px}
.cta-copy h2{margin:0;font-size:24px;line-height:1.3;font-weight:700;color:var(--ink)}
@media(min-width:768px){.cta-copy h2{font-size:28px}}
.cta-copy p{margin:10px 0 0;font-size:14px;color:var(--muted)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:519px){.cta-actions{width:100%}.cta-actions .btn{flex:1 1 0;min-width:0}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface-2);margin-top:44px;border-top:1px solid var(--line)}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:30px;
  padding:44px 0 32px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:36px;padding:52px 0 36px}}
.footer-brand p{margin:14px 0 0;font-size:14px;color:var(--muted);line-height:1.8;max-width:280px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-dot{
  width:34px;height:34px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:13px;color:var(--muted);
  transition:all .2s ease-out;
}
.social-dot:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{margin:0 0 14px;font-size:15px;font-weight:700;color:var(--ink)}
.footer-links a{
  display:block;font-size:14px;color:var(--muted);
  padding:5px 0;transition:all .2s ease-out;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-col p{margin:0;font-size:13px;color:var(--muted);line-height:1.8;max-width:300px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:16px 0 22px;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--weak)}
.footer-bottom .tech{font-size:12px;color:var(--weak)}
@media(max-width:640px){
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --primary:#2A5CE0;
  --primary-deep:#1E45B4;
  --primary-soft:#EAF0FE;
  --teal:#12B5A6;
  --teal-deep:#0E9384;
  --amber:#F59B24;
  --page:#F5F7FA;
  --surface:#FFFFFF;
  --surface-2:#F0F3F8;
  --ink:#141C28;
  --muted:#5B6779;
  --faint:#8A94A6;
  --line:#E5E9F2;
  --line-soft:#EEF1F6;
  --success:#1C9E6B;
  --warning:#E08A00;
  --danger:#D64545;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(20,28,40,.05),0 6px 18px rgba(20,28,40,.06);
  --shadow-md:0 10px 28px rgba(20,28,40,.10);
  --ease:all .2s ease-out;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  display:flex;
  flex-direction:column;
  min-height:100vh;
  overflow-x:hidden;
}
main{flex:1}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
img{display:block;max-width:100%}
a{color:inherit}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(42,92,224,.55);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,28,40,.04);
}
.brand-row{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.01em}
.logo-text em{font-style:normal;color:var(--primary)}
.search-box{position:relative;display:flex;align-items:center;flex:1;max-width:400px;margin:0 auto}
.search-box svg{
  position:absolute;left:14px;width:16px;height:16px;stroke:var(--faint);fill:none;
  stroke-width:2;stroke-linecap:round;stroke-linejoin:round;pointer-events:none;
}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 16px 0 40px;font-size:14px;color:var(--ink);
  outline:none;transition:var(--ease);
}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 3px rgba(42,92,224,.14)}
.brand-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 20px;height:44px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;transition:var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-deep);border-color:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,69,180,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.btn-sm{height:36px;padding:0 14px;font-size:14px;border-radius:10px}
.btn-lg{height:48px;padding:0 24px;font-size:15px}
.channel-row{background:var(--surface);border-bottom:1px solid var(--line-soft)}
.channel-nav{display:flex;align-items:stretch;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:flex;align-items:center;white-space:nowrap;
  font-size:15px;color:var(--muted);text-decoration:none;transition:color .2s ease-out;
}
.channel-link:hover{color:var(--ink)}
.channel-link.active{color:var(--primary);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:var(--primary);
}

/* ---------- 页面通用 ---------- */
.section{padding:40px 0}
@media(min-width:768px){.section{padding:56px 0}}
@media(min-width:1024px){.section{padding:64px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.section-head h2{position:relative;padding-left:14px;font-size:26px;font-weight:700}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:1.05em;
  border-radius:4px;background:var(--primary);
}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px;padding-left:14px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--primary);text-decoration:none;transition:var(--ease);
}
.link-more span{transition:transform .2s ease-out}
.link-more:hover span{transform:translateX(4px)}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);padding:18px 0 0;flex-wrap:wrap}
.crumbs a{color:var(--faint);text-decoration:none;transition:color .2s}
.crumbs a:hover{color:var(--primary)}
.crumbs .current{color:var(--ink)}
.dot-sep{width:3px;height:3px;border-radius:50%;background:#C7CDD9;display:inline-block;flex-shrink:0}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;margin-top:16px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);min-height:220px;
  display:flex;align-items:center;padding:32px 24px;
  background-image:
    linear-gradient(90deg,#fff 0%,rgba(255,255,255,.94) 40%,rgba(255,255,255,.55) 72%,rgba(255,255,255,.06) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
@media(min-width:768px){.page-banner{min-height:240px;padding:40px 40px}}
@media(min-width:1024px){.page-banner{padding:48px 48px}}
.banner-inner{max-width:600px;position:relative;z-index:1}
.badge-teal{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;
  padding:5px 12px;border-radius:999px;background:rgba(18,181,166,.13);color:var(--teal-deep);
}
.badge-teal i{width:6px;height:6px;border-radius:50%;background:var(--teal);display:block}
.page-banner h1{font-size:27px;line-height:1.3;font-weight:700;margin-top:14px}
@media(min-width:768px){.page-banner h1{font-size:36px;line-height:1.25}}
@media(min-width:1024px){.page-banner h1{font-size:40px}}
.page-banner h1 em{font-style:normal;color:var(--primary)}
.banner-sub{font-size:15px;color:var(--muted);margin-top:12px;max-width:460px;line-height:1.8}
.banner-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
@media(max-width:639px){.banner-actions .btn{flex:1 1 150px}}

/* ---------- 快速通道 ---------- */
.quick-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.quick-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);transition:var(--ease);
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D5DEFF}
.quick-index{
  display:inline-block;font-size:12px;font-weight:700;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;padding:2px 9px;margin-bottom:12px;
}
.quick-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.quick-card p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------- 资讯双栏 ---------- */
.news-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.news-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px}}
.news-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:8px 20px;box-shadow:var(--shadow-sm)}
@media(min-width:768px){.news-main{padding:8px 28px}}
.news-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 0 12px;border-bottom:1px solid var(--line-soft)}
.news-toolbar h2{font-size:18px;font-weight:700}
.sort-links{display:flex;align-items:center;gap:14px;font-size:13px}
.sort-links a{color:var(--faint);text-decoration:none;transition:color .2s}
.sort-links a:hover{color:var(--primary)}
.sort-links a.on{color:var(--primary);font-weight:600}
.news-row{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line-soft);
  text-decoration:none;color:inherit;transition:var(--ease);
}
.news-row:last-child{border-bottom:0}
.news-row:hover{transform:translateX(2px)}
.news-date{
  flex:0 0 64px;width:64px;height:64px;border-radius:var(--radius-sm);
  background:var(--surface-2);display:flex;flex-direction:column;align-items:center;justify-content:center;
  transition:var(--ease);
}
.news-row:hover .news-date{background:var(--primary-soft)}
.news-date .d{font-size:20px;font-weight:700;line-height:1;color:var(--ink)}
.news-row:hover .news-date .d{color:var(--primary)}
.news-date .m{font-size:11px;color:var(--faint);margin-top:4px;letter-spacing:.04em}
.news-body{flex:1;min-width:0}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px;transition:color .2s}
.news-row:hover .news-body h3{color:var(--primary)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:12px;color:var(--faint)}
.mini-badge{font-size:12px;font-weight:500;padding:2px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary)}
@media(max-width:479px){
  .news-row{gap:12px}
  .news-date{flex:0 0 54px;width:54px;height:54px}
  .news-date .d{font-size:17px}
  .news-body h3{font-size:16px}
}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-sm);
}
.side-card + .side-card{margin-top:20px}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;margin-bottom:16px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);display:block}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;padding:6px 12px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);text-decoration:none;transition:var(--ease);
}
.tag:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.pick{display:flex;gap:12px;padding:12px 0;text-decoration:none;color:inherit;border-bottom:1px dashed var(--line-soft);transition:var(--ease)}
.pick:first-of-type{padding-top:0}
.pick:last-of-type{border-bottom:0;padding-bottom:0}
.pick img{width:64px;height:64px;flex:0 0 64px;border-radius:12px;object-fit:cover;transition:var(--ease)}
.pick:hover img{transform:scale(1.04)}
.pick h4{
  font-size:14px;font-weight:600;line-height:1.5;margin-bottom:4px;transition:color .2s;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pick:hover h4{color:var(--primary)}
.pick span{font-size:12px;color:var(--faint)}
.sub-form{display:flex;flex-direction:column;gap:10px}
.sub-form input{
  height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);
  padding:0 14px;font-size:14px;color:var(--ink);outline:none;transition:var(--ease);background:var(--surface);
}
.sub-form input::placeholder{color:var(--faint)}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,92,224,.14)}
.sub-form .btn{width:100%}
.sub-note{font-size:12px;color:var(--faint);line-height:1.7;margin-top:10px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:12px;transition:var(--ease);
}
.faq-item:hover{border-color:#D5DEFF}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:15px;font-weight:600;color:var(--ink);transition:color .2s;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  position:relative;flex:0 0 20px;width:20px;height:20px;border-radius:50%;
  background:var(--surface-2);transition:var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:transform .25s ease-out}
.faq-item.open .faq-icon{background:var(--primary-soft)}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease-out}
.faq-a > div{overflow:hidden;padding:0 20px;font-size:14px;line-height:1.8;color:var(--muted)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-item.open .faq-a > div{padding-bottom:18px}
.faq-item.open{border-color:#D5DEFF;box-shadow:var(--shadow-sm)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--primary-soft);border-radius:var(--radius-lg);
  padding:32px 24px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
@media(min-width:768px){.cta-band{padding:44px 48px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(42,92,224,.055) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:560px}
.cta-copy h2{font-size:24px;font-weight:700}
.cta-copy p{font-size:14px;color:var(--muted);margin-top:8px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:639px){.cta-actions .btn{flex:1 1 140px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--surface-2);border-top:1px solid var(--line);margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 0}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:14px;max-width:280px}
.social-row{display:flex;gap:8px;margin-top:16px}
.social-dot{
  width:32px;height:32px;border-radius:50%;background:#E2E7F0;color:var(--muted);
  display:grid;place-items:center;font-size:12px;
}
.footer-col h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer-col p{font-size:13px;color:var(--muted);line-height:1.8}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);text-decoration:none;transition:var(--ease);display:inline-block}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:36px;border-top:1px solid var(--line);padding:20px 0 24px;
  display:flex;gap:8px;flex-wrap:wrap;justify-content:space-between;
  font-size:12.5px;color:var(--faint);
}
.tech{color:var(--faint)}

@media(max-width:767px){
  .search-box{display:none}
  .brand-actions .btn-ghost{display:none}
  .logo-text{font-size:15px}
  .logo-mark{width:32px;height:32px;font-size:16px;border-radius:9px}
  .section-head h2{font-size:22px}
  .cta-copy h2{font-size:21px}
}

/* roulang page: category3 */
:root{
    --primary:#2A5CE0;
    --primary-deep:#1E45B4;
    --primary-soft:#EAF0FE;
    --accent-teal:#12B5A6;
    --accent-amber:#F59B24;
    --page:#F5F7FA;
    --surface:#FFFFFF;
    --surface-2:#F0F3F8;
    --ink:#141C28;
    --muted:#5B6779;
    --faint:#8A94A6;
    --line:#E5E9F2;
    --line-soft:#EEF1F6;
    --radius-card:16px;
    --radius-lg:24px;
    --shadow-card:0 1px 2px rgba(20,28,40,.05), 0 6px 18px rgba(20,28,40,.06);
    --shadow-hover:0 10px 28px rgba(20,28,40,.10);
    --font-base:-apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font-base);
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--page);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input{font-family:inherit;font-size:inherit;color:inherit}
  body .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
  }
  @media (min-width:640px){ body .container{padding-left:24px;padding-right:24px} }
  @media (min-width:1024px){ body .container{padding-left:32px;padding-right:32px} }

  /* ============ 头部 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(20,28,40,.04);
  }
  .brand-row{display:flex;align-items:center;gap:18px;height:64px}
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:700;
    font-size:17px;
    letter-spacing:-.01em;
    white-space:nowrap;
    transition:opacity .2s ease;
  }
  .logo:hover{opacity:.85}
  .logo-mark{
    width:34px;height:34px;
    border-radius:10px;
    background:linear-gradient(135deg,var(--primary),#4B7BFF);
    color:#fff;
    display:grid;place-items:center;
    font-size:17px;font-weight:700;
    flex:none;
  }
  .logo-text em{font-style:normal;color:var(--primary)}
  .search-box{
    flex:1 1 auto;
    max-width:420px;
    display:flex;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--surface-2);
    transition:border-color .2s ease, background .2s ease, box-shadow .2s ease;
  }
  .search-box:focus-within{
    border-color:var(--primary);
    background:#fff;
    box-shadow:0 0 0 3px rgba(42,92,224,.14);
  }
  .search-box svg{
    width:16px;height:16px;flex:none;
    fill:none;stroke:var(--faint);stroke-width:2;stroke-linecap:round;
  }
  .search-box input{
    flex:1;min-width:0;
    border:0;outline:none;background:transparent;
    font-size:14px;line-height:1.4;
  }
  .search-box input::placeholder{color:var(--faint)}
  .brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:12px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    cursor:pointer;
    white-space:nowrap;
    transition:background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(42,92,224,.20)}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(42,92,224,.26)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(42,92,224,.22)}
  .btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(42,92,224,.28)}
  .btn-lg{padding:14px 28px;font-size:16px}

  .channel-row{background:var(--surface);border-bottom:1px solid var(--line)}
  .channel-nav{
    display:flex;
    align-items:stretch;
    gap:26px;
    height:48px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .channel-nav::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    font-size:15px;
    color:var(--muted);
    white-space:nowrap;
    transition:color .2s ease;
  }
  .channel-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:3px;
    border-radius:3px;
    background:transparent;
    transition:background .2s ease;
  }
  .channel-link:hover{color:var(--ink)}
  .channel-link.active{color:var(--primary);font-weight:600}
  .channel-link.active::after{background:var(--primary)}
  .channel-link:focus-visible{outline:2px solid rgba(42,92,224,.45);outline-offset:4px;border-radius:4px}

  /* ============ 通用板块 ============ */
  .section{padding:48px 0}
  @media (min-width:768px){ .section{padding:60px 0} }
  @media (min-width:1024px){ .section{padding:68px 0} }
  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:14px;
    margin-bottom:26px;
  }
  .section-head h2{
    position:relative;
    padding-left:14px;
    font-size:24px;
    line-height:1.35;
    font-weight:700;
    letter-spacing:-.01em;
  }
  .section-head h2::before{
    content:"";
    position:absolute;
    left:0;top:.32em;
    width:4px;height:20px;
    border-radius:2px;
    background:var(--primary);
  }
  @media (min-width:768px){ .section-head h2{font-size:28px} }
  .section-sub{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;max-width:640px}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--primary);
    transition:color .2s ease;
  }
  .link-more span{transition:transform .2s ease}
  .link-more:hover{color:var(--primary-deep)}
  .link-more:hover span{transform:translateX(4px)}
  .link-more:focus-visible{outline:2px solid rgba(42,92,224,.45);outline-offset:4px;border-radius:4px}

  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:12px;font-weight:600;
    line-height:1.4;
  }
  .pill-teal{background:rgba(18,181,166,.12);color:#0C8C81}
  .pill-primary{background:var(--primary-soft);color:var(--primary)}
  .pill-amber{background:rgba(245,155,36,.14);color:#B26A05}

  /* ============ 面包屑 + Banner ============ */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;
    padding:18px 0 14px;
    font-size:13px;color:var(--faint);
    overflow:hidden;
  }
  .breadcrumb a{color:var(--faint);transition:color .2s ease;white-space:nowrap}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{color:#C4CBDA}
  .breadcrumb .current{color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

  .page-banner{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    min-height:250px;
    display:flex;
    align-items:center;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center right;
    border:1px solid var(--line);
  }
  .page-banner::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,#FFFFFF 0%,rgba(255,255,255,.95) 44%,rgba(255,255,255,.18) 100%);
  }
  .banner-inner{position:relative;z-index:1;padding:34px 24px;max-width:640px}
  @media (min-width:768px){ .banner-inner{padding:44px 40px} }
  .banner-inner h1{
    margin-top:14px;
    font-size:clamp(26px,4vw,38px);
    line-height:1.28;
    font-weight:700;
    letter-spacing:-.01em;
  }
  .banner-inner p{
    margin-top:12px;
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
    max-width:520px;
  }
  .banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
  @media (max-width:519px){
    .banner-actions .btn{width:100%}
  }
  @media (max-width:767px){
    .page-banner{background-position:center}
    .page-banner::before{background:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.90) 62%,rgba(255,255,255,.80) 100%)}
  }

  /* ============ 分步区块 ============ */
  .steps{position:relative}
  .step{display:flex;gap:16px;padding-bottom:34px}
  .step:last-child{padding-bottom:0}
  .step-num{
    flex:none;
    width:52px;
    font-size:40px;
    line-height:1;
    font-weight:700;
    letter-spacing:-.02em;
    color:rgba(42,92,224,.16);
    font-variant-numeric:tabular-nums;
    transition:color .2s ease;
  }
  .step:hover .step-num{color:rgba(42,92,224,.30)}
  .step-body{padding-top:2px;min-width:0}
  .step-body h3{font-size:18px;font-weight:600;line-height:1.45}
  .step-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}
  .step-list{margin-top:12px;display:grid;gap:8px}
  .step-list li{
    position:relative;
    padding-left:16px;
    font-size:14px;
    line-height:1.75;
    color:var(--muted);
  }
  .step-list li::before{
    content:"";
    position:absolute;
    left:0;top:.7em;
    width:6px;height:6px;
    border-radius:50%;
    background:var(--primary);
    opacity:.55;
  }
  @media (min-width:1024px){
    .step{gap:26px}
    .step-num{font-size:44px;width:64px}
    .step-body{border-left:1px solid var(--line);padding-left:26px}
    .step-body h3{font-size:19px}
  }

  /* ============ 频道速览行 ============ */
  .channel-overview{display:grid;gap:16px}
  .overview-item{
    display:flex;
    flex-wrap:wrap;
    gap:16px;
    align-items:center;
    padding:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .overview-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDCFB}
  .overview-thumb{
    flex:none;
    width:132px;
    aspect-ratio:4/3;
    border-radius:12px;
    overflow:hidden;
    background:var(--surface-2);
  }
  .overview-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
  .overview-item:hover .overview-thumb img{transform:scale(1.04)}
  .overview-text{flex:1 1 220px;min-width:0}
  .overview-text h3{font-size:17px;font-weight:600;line-height:1.45}
  .overview-text p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--muted)}
  .overview-text .link-more{margin-top:10px;font-size:13px}
  @media (max-width:519px){
    .overview-thumb{width:100%;aspect-ratio:16/9}
  }
  @media (min-width:1024px){
    .overview-item{padding:20px;gap:22px}
    .overview-thumb{width:168px}
    .overview-text h3{font-size:18px}
  }

  /* ============ 对照区块 ============ */
  .compare{display:grid;gap:18px}
  @media (min-width:768px){ .compare{grid-template-columns:1fr 1fr;gap:22px} }
  .compare-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .compare-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
  .compare-card.is-highlight{
    background:linear-gradient(180deg,#fff 0%,var(--primary-soft) 100%);
    border-color:#CFDCFB;
  }
  .compare-card h3{
    display:flex;align-items:center;gap:10px;
    font-size:18px;font-weight:600;line-height:1.45;
  }
  .compare-card h3 .dot{
    width:10px;height:10px;border-radius:50%;
    background:var(--faint);flex:none;
  }
  .compare-card.is-highlight h3 .dot{background:var(--primary)}
  .compare-card > p{margin-top:8px;font-size:13px;line-height:1.7;color:var(--faint)}
  .compare-list{margin-top:16px;display:grid;gap:0}
  .compare-list li{
    display:flex;gap:10px;
    padding:11px 0;
    font-size:14px;
    line-height:1.7;
    color:var(--muted);
    border-bottom:1px solid var(--line-soft);
  }
  .compare-list li:last-child{border-bottom:0}
  .compare-list .tick{
    flex:none;
    width:18px;height:18px;
    margin-top:3px;
    border-radius:50%;
    background:rgba(18,181,166,.14);
    color:#0C8C81;
    display:grid;place-items:center;
    font-size:11px;font-weight:700;
  }
  .compare-card.is-highlight .compare-list .tick{background:rgba(42,92,224,.14);color:var(--primary)}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px;max-width:880px}
  .faq-item{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .faq-item:hover{border-color:#CFDCFB;box-shadow:var(--shadow-card)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;
    font-size:15px;
    font-weight:600;
    line-height:1.5;
    cursor:pointer;
    list-style:none;
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:focus-visible{outline:2px solid rgba(42,92,224,.45);outline-offset:-4px}
  .faq-item summary:hover{color:var(--primary)}
  .faq-plus{
    flex:none;
    width:22px;height:22px;
    display:grid;place-items:center;
    font-size:18px;font-weight:400;
    color:var(--faint);
    transition:transform .2s ease, color .2s ease;
  }
  .faq-item[open] summary{color:var(--primary)}
  .faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--primary)}
  .faq-answer{
    margin:0 20px 20px;
    padding-left:14px;
    border-left:3px solid var(--primary-soft);
    font-size:14px;
    line-height:1.85;
    color:var(--muted);
    transition:border-color .2s ease;
  }
  .faq-item[open] .faq-answer{border-left-color:var(--primary)}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--radius-lg);
    background:var(--primary-soft);
    padding:32px 24px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:22px;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background:repeating-linear-gradient(115deg, rgba(42,92,224,.05) 0 10px, transparent 10px 24px);
    pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:1}
  .cta-band h2{font-size:22px;font-weight:700;line-height:1.4;letter-spacing:-.01em}
  @media (min-width:768px){ .cta-band h2{font-size:26px} }
  .cta-band p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted);max-width:520px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  @media (min-width:768px){ .cta-band{padding:40px 40px} }
  @media (max-width:519px){
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 100%}
  }

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:24px;
    padding-top:48px;
    background:var(--surface-2);
    border-top:1px solid var(--line);
  }
  .footer-grid{display:grid;gap:30px;grid-template-columns:1fr}
  @media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px} }
  .footer-brand p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--muted);max-width:280px}
  .social-row{display:flex;gap:10px;margin-top:16px}
  .social-dot{
    width:32px;height:32px;
    border-radius:50%;
    background:#E1E7F1;
    color:var(--muted);
    display:grid;place-items:center;
    font-size:12px;
    transition:background .2s ease, color .2s ease;
  }
  .social-dot:hover{background:var(--primary-soft);color:var(--primary)}
  .footer-col h4{font-size:15px;font-weight:600;margin-bottom:12px}
  .footer-col p{font-size:13px;line-height:1.8;color:var(--muted)}
  .footer-links a{
    display:block;
    padding:4px 0;
    font-size:14px;
    color:var(--muted);
    transition:color .2s ease, transform .2s ease;
  }
  .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
  .footer-links a:focus-visible{outline:2px solid rgba(42,92,224,.45);outline-offset:2px;border-radius:4px}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:space-between;
    align-items:center;
    margin-top:34px;
    padding:20px 0;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--faint);
  }
  .footer-bottom .tech{font-size:12px;color:#9AA4B4}

  @media (max-width:767px){
    .search-box{display:none}
    .brand-row{gap:12px;height:60px}
    .logo-text{font-size:16px}
  }
  @media (max-width:519px){
    .brand-actions .btn-ghost{display:none}
    .logo-text em{display:inline}
  }

/* roulang page: category4 */
:root{
    --primary:#2A5CE0;
    --primary-deep:#1E45B4;
    --primary-soft:#EAF0FE;
    --teal:#12B5A6;
    --teal-soft:#E6F8F5;
    --teal-ink:#0B7F74;
    --amber:#F59B24;
    --amber-soft:#FEF3E3;
    --page:#F5F7FA;
    --surface:#FFFFFF;
    --surface-2:#F0F3F8;
    --ink:#141C28;
    --muted:#5B6779;
    --faint:#8A94A6;
    --line:#E5E9F2;
    --line-2:#EEF1F6;
    --r-card:16px;
    --r-block:24px;
    --r-btn:10px;
    --shadow-sm:0 1px 2px rgba(20,28,40,.05),0 6px 18px rgba(20,28,40,.06);
    --shadow-md:0 10px 28px rgba(20,28,40,.10);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--page);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}
  input{font:inherit}
  :focus-visible{outline:2px solid rgba(42,92,224,.45);outline-offset:2px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
  @media (min-width:640px){.container{padding:0 24px}}
  @media (min-width:1024px){.container{padding:0 32px}}

  .anchor{display:block;height:0;visibility:hidden}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(42,92,224,.20)}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(42,92,224,.26)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(42,92,224,.22)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
  .btn-sm{height:36px;padding:0 15px;font-size:13.5px;border-radius:9px}
  .btn-block{width:100%}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);font-size:14px;font-weight:600;
    transition:color .2s ease;
  }
  .link-arrow .arrow{transition:transform .2s ease}
  .link-arrow:hover{color:var(--primary-deep)}
  .link-arrow:hover .arrow{transform:translateX(4px)}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(20,28,40,.04)}
  .brand-row{display:flex;align-items:center;gap:20px;height:64px}
  .logo{display:inline-flex;align-items:center;gap:10px;flex:none}
  .logo-mark{
    width:36px;height:36px;border-radius:10px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--primary),#3F7BE8);
    color:#fff;font-size:18px;font-weight:700;
    box-shadow:0 4px 12px rgba(42,92,224,.24);
  }
  .logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
  .logo-text em{font-style:normal;color:var(--primary)}
  .search-box{
    display:flex;align-items:center;gap:8px;flex:1;max-width:420px;
    height:40px;padding:0 14px;border-radius:999px;
    background:var(--surface-2);border:1px solid transparent;
    transition:border-color .2s ease,background-color .2s ease;
  }
  .search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(42,92,224,.12)}
  .search-box svg{width:18px;height:18px;flex:none;fill:none;stroke:var(--faint);stroke-width:1.8;stroke-linecap:round}
  .search-box input{flex:1;min-width:0;border:none;background:transparent;outline:none;font-size:14px;color:var(--ink)}
  .search-box input::placeholder{color:var(--faint)}
  .brand-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex:none}

  .channel-row{background:#fff;border-bottom:1px solid var(--line)}
  .channel-nav{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none}
  .channel-nav::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;display:inline-flex;align-items:center;height:48px;
    font-size:15px;color:var(--muted);white-space:nowrap;
    transition:color .2s ease;
  }
  .channel-link:hover{color:var(--ink)}
  .channel-link.active{color:var(--primary);font-weight:600}
  .channel-link.active::after{
    content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
    width:24px;height:3px;border-radius:3px 3px 0 0;background:var(--primary);
  }

  /* ---------- Banner ---------- */
  .page-banner{
    position:relative;overflow:hidden;
    border-radius:var(--r-block);
    min-height:230px;display:flex;align-items:center;
    margin-top:24px;box-shadow:var(--shadow-sm);
  }
  @media (min-width:768px){.page-banner{min-height:270px}}
  .page-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .page-banner::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,#ffffff 6%,rgba(255,255,255,.94) 36%,rgba(255,255,255,.55) 62%,rgba(255,255,255,0) 86%);
  }
  .banner-inner{position:relative;z-index:2;padding:28px 24px;max-width:700px}
  @media (min-width:768px){.banner-inner{padding:44px}}
  .banner-eyebrow{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    background:var(--teal-soft);color:var(--teal-ink);
    font-size:12px;font-weight:500;letter-spacing:.02em;
  }
  .banner-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
  .banner-title{
    margin-top:14px;
    font-size:clamp(26px,4vw,38px);
    font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--ink);
  }
  .banner-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:520px}
  .banner-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:18px;font-size:13px;color:var(--muted)}
  .banner-meta span{display:inline-flex;align-items:center;gap:6px}
  .banner-meta i{width:5px;height:5px;border-radius:50%;background:var(--primary);display:inline-block}

  /* ---------- 区块 ---------- */
  .section{padding:44px 0}
  @media (min-width:768px){.section{padding:60px 0}}
  @media (min-width:1024px){.section{padding:76px 0}}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
  .section-title{
    position:relative;padding-left:16px;
    font-size:26px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
  }
  @media (min-width:768px){.section-title{font-size:28px}}
  .section-title::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:4px;height:20px;border-radius:3px;background:var(--primary);
  }
  .section-sub{margin-top:6px;font-size:14px;color:var(--muted)}

  /* ---------- 概览数据 ---------- */
  .overview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:24px}
  @media (min-width:768px){.overview-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}}
  .ov-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:16px 18px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .ov-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CBD9F8}
  .ov-num{font-size:26px;font-weight:700;line-height:1.2;color:var(--primary)}
  .ov-num small{font-size:13px;font-weight:600;color:var(--faint);margin-left:2px}
  .ov-label{margin-top:2px;font-size:13px;color:var(--muted)}

  /* ---------- 筛选 ---------- */
  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
  .chip{
    padding:8px 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--muted);
    font-size:14px;font-weight:500;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(42,92,224,.22)}

  /* ---------- 活动卡 ---------- */
  .event-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media (min-width:768px){.event-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
  .event-card{
    display:flex;flex-direction:column;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .event-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CBD9F8}
  .event-card.is-hidden{display:none}
  .event-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
  .event-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
  .event-card:hover .event-media img{transform:scale(1.04)}
  .status{
    position:absolute;top:12px;left:12px;
    padding:4px 11px;border-radius:999px;
    font-size:12px;font-weight:500;line-height:1.6;
    backdrop-filter:blur(2px);
  }
  .status-live{background:var(--teal-soft);color:var(--teal-ink);border:1px solid rgba(18,181,166,.28)}
  .status-past{background:rgba(255,255,255,.94);color:var(--faint);border:1px solid var(--line)}
  .status-soon{background:var(--amber-soft);color:#A26400;border:1px solid rgba(245,155,36,.32)}
  .event-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .event-tag{font-size:12px;font-weight:500;color:var(--primary);background:var(--primary-soft);padding:3px 10px;border-radius:999px;align-self:flex-start}
  .event-body h3{font-size:18px;font-weight:600;line-height:1.45}
  .event-card:hover .event-body h3{color:var(--primary)}
  .event-desc{font-size:14px;line-height:1.78;color:var(--muted)}
  .event-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;
    margin-top:auto;padding-top:12px;border-top:1px solid var(--line-2);
    font-size:12.5px;color:var(--faint);
  }
  .event-meta .sep{width:3px;height:3px;border-radius:50%;background:#C6CEDC}
  .event-foot{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .event-empty{
    display:none;text-align:center;padding:56px 20px;
    background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  }
  .event-empty.is-show{display:block}
  .event-empty .ico{
    width:64px;height:64px;border-radius:50%;background:var(--surface-2);
    margin:0 auto 14px;display:grid;place-items:center;color:var(--faint);font-size:24px;
  }
  .event-empty p{font-size:14px;color:var(--muted)}

  /* ---------- 流程 ---------- */
  .steps{display:grid;grid-template-columns:1fr;gap:18px}
  @media (min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}}
  .step{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CBD9F8}
  .step-num{font-size:40px;font-weight:700;line-height:1;color:rgba(42,92,224,.16);letter-spacing:-.02em}
  .step h3{margin-top:10px;font-size:17px;font-weight:600}
  .step p{margin-top:8px;font-size:14px;line-height:1.78;color:var(--muted)}
  .step-line{display:none}
  @media (min-width:1024px){
    .step-line{
      display:block;position:absolute;left:0;top:36px;bottom:36px;width:1px;
      background:linear-gradient(180deg,var(--line),transparent);transform:translateX(-12px);
    }
  }

  /* ---------- 说明要点 ---------- */
  .notice{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--shadow-sm);
  }
  @media (min-width:768px){.notice{padding:32px}}
  .notice-list{display:grid;gap:14px;margin-top:16px}
  @media (min-width:768px){.notice-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px}}
  .notice-item{display:flex;gap:12px;align-items:flex-start}
  .notice-item .mk{
    flex:none;width:22px;height:22px;border-radius:7px;background:var(--primary-soft);
    color:var(--primary);font-size:12px;font-weight:700;
    display:grid;place-items:center;margin-top:4px;
  }
  .notice-item p{font-size:14.5px;color:var(--muted);line-height:1.78}
  .notice-item p b{color:var(--ink);font-weight:600}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:#CBD9F8}
  .faq-item[open]{box-shadow:var(--shadow-sm);border-color:#CBD9F8}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:15px;font-weight:600;line-height:1.6;
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--primary)}
  .faq-item[open] summary{color:var(--primary)}
  .faq-plus{
    position:relative;flex:none;width:18px;height:18px;
    transition:transform .25s ease;
  }
  .faq-plus::before,.faq-plus::after{
    content:"";position:absolute;background:var(--faint);border-radius:2px;
    transition:background-color .2s ease;
  }
  .faq-plus::before{left:0;top:8px;width:18px;height:2px}
  .faq-plus::after{left:8px;top:0;width:2px;height:18px}
  .faq-item[open] .faq-plus{transform:rotate(45deg)}
  .faq-item[open] .faq-plus::before,.faq-item[open] .faq-plus::after{background:var(--primary)}
  .faq-answer{
    padding:0 20px 20px 20px;
    border-left:3px solid var(--primary);
    margin-left:20px;padding-left:16px;
    font-size:14px;line-height:1.8;color:var(--muted);
  }

  /* ---------- CTA ---------- */
  .cta-block{
    position:relative;overflow:hidden;
    background:var(--primary-soft);border-radius:var(--r-block);
    padding:30px 24px;
    display:flex;flex-direction:column;gap:20px;
  }
  @media (min-width:768px){
    .cta-block{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px;gap:32px}
  }
  .cta-block::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:repeating-linear-gradient(135deg,rgba(42,92,224,.055) 0 10px,transparent 10px 22px);
  }
  .cta-copy{position:relative;z-index:2;max-width:560px}
  .cta-copy h2{font-size:24px;font-weight:700;line-height:1.35;letter-spacing:-.01em}
  @media (min-width:768px){.cta-copy h2{font-size:28px}}
  .cta-copy p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.78}
  .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}
  @media (max-width:767px){.cta-actions .btn{flex:1 1 140px}}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--surface-2);border-top:1px solid var(--line);margin-top:40px}
  .footer-grid{
    display:grid;grid-template-columns:1fr;gap:32px;
    padding:44px 0 32px;
  }
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}}
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 40px}
  }
  .footer-brand .logo{margin-bottom:14px}
  .footer-brand p{font-size:14px;color:var(--muted);max-width:280px;line-height:1.78}
  .social-row{display:flex;gap:10px;margin-top:18px}
  .social-dot{
    width:34px;height:34px;border-radius:50%;
    background:#E3E8F1;color:var(--muted);
    display:grid;place-items:center;font-size:13px;font-weight:600;
  }
  .footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--ink)}
  .footer-col p{font-size:13.5px;color:var(--muted);line-height:1.78}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{
    font-size:14px;color:var(--muted);
    transition:color .2s ease,transform .2s ease;
    align-self:flex-start;
  }
  .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
  .footer-bottom{
    display:flex;flex-direction:column;gap:8px;
    border-top:1px solid var(--line);
    padding:18px 0 26px;
    font-size:12.5px;color:var(--faint);
  }
  @media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

  /* ---------- 移动端导航 ---------- */
  @media (max-width:767px){
    .search-box{display:none}
    .brand-actions .btn-ghost{display:none}
    .brand-row{gap:12px}
    .channel-nav{gap:20px}
    .logo-text{font-size:15.5px}
    .logo-mark{width:32px;height:32px;font-size:16px;border-radius:9px}
    .banner-inner{padding:24px 20px}
    .page-banner::after{
      background:linear-gradient(90deg,#ffffff 10%,rgba(255,255,255,.95) 52%,rgba(255,255,255,.66) 100%);
    }
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }