/* roulang page: index */
:root{
  --brand:#2BE3B0;
  --brand-2:#7C5CFF;
  --amber:#FFB020;
  --danger:#FF4D6D;
  --bg:#0A0912;
  --bg-2:#12101E;
  --bg-3:#1B1830;
  --band:#100E1C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.06);
  --text:#F4F2FF;
  --text-2:#A6A0C2;
  --text-3:#6E688C;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:88px 0}
.section.band{background:var(--band);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{font-size:30px;font-weight:700}
.section-sub{margin-top:8px;color:var(--text-2);font-size:14px}
.section-link{color:var(--text-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.section-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:11px 20px;font-size:15px;font-weight:600;transition:transform .2s,box-shadow .25s,background .25s,border-color .25s,color .25s;border:1px solid transparent}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);color:#08111A;border-radius:999px;font-weight:700}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 14px 34px -14px rgba(43,227,176,.65);color:#08111A;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn[disabled]{opacity:.45;pointer-events:none;box-shadow:none}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:6px;background:rgba(255,255,255,.08);color:var(--text-2);line-height:1.6}
.badge-brand{background:rgba(43,227,176,.14);color:var(--brand)}
.badge-amber{background:rgba(255,176,32,.16);color:var(--amber)}
.badge-purple{background:rgba(124,92,255,.18);color:#B7A6FF}

/* 导航 */
.site-header{position:sticky;top:0;z-index:120;background:rgba(10,9,18,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
.site-header.is-scrolled{background:rgba(10,9,18,.94);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em}
.logo:hover{color:var(--text)}
.logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#2BE3B0,#7C5CFF);display:grid;place-items:center;color:#08111A;font-size:15px;box-shadow:0 10px 24px -12px rgba(43,227,176,.8)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav-links a{padding:9px 14px;border-radius:999px;font-size:15px;color:var(--text-2);font-weight:500}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--text);background:rgba(43,227,176,.12);box-shadow:inset 0 0 0 1px rgba(43,227,176,.35)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--text-2);transition:.25s}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(43,227,176,.08)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);place-items:center;color:var(--text)}
.drawer{display:none}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:flex-end;padding:130px 0 72px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;transition:opacity .5s}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,18,.62) 0%,rgba(10,9,18,.42) 32%,rgba(10,9,18,.9) 76%,#0A0912 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:64px 64px;opacity:.35;pointer-events:none;z-index:1}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:56px;align-items:flex-end}
.hero-badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:#1A1206;background:linear-gradient(135deg,#FFB020,#FFD37A);padding:5px 12px;border-radius:999px;letter-spacing:.01em}
.hero h1{font-size:clamp(30px,4.4vw,54px);font-weight:800;line-height:1.14;margin:20px 0 0;max-width:16em}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stat .num{display:block;font-size:24px;font-weight:800;color:var(--text)}
.hero-stat span{font-size:13px;color:var(--text-3)}
.hero-thumbs{display:grid;gap:12px}
.hero-thumb{position:relative;display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:8px;border-radius:12px;background:rgba(18,16,30,.76);border:1px solid var(--line);color:var(--text-2);transition:.25s}
.hero-thumb img{width:60px;height:42px;object-fit:cover;border-radius:8px;flex:0 0 auto}
.hero-thumb span{font-size:13px;font-weight:600}
.hero-thumb:hover{border-color:rgba(43,227,176,.45);color:var(--text)}
.hero-thumb.is-active{border-color:rgba(43,227,176,.6);color:var(--text)}
.hero-thumb.is-active::before{content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand)}

/* 横滑轨道 */
.track-wrap{position:relative}
.track-wrap::after{content:"";position:absolute;top:0;right:0;width:90px;height:100%;background:linear-gradient(90deg,rgba(10,9,18,0),rgba(10,9,18,.96));pointer-events:none}
.section.band .track-wrap::after{background:linear-gradient(90deg,rgba(16,14,28,0),var(--band))}
.track{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none}
.track::-webkit-scrollbar{display:none}
.track > .card{flex:0 0 220px;scroll-snap-align:start}

/* 卡片 */
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.3)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--bg-3)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card-cover .score{position:absolute;top:10px;left:10px}
.card-body{padding:14px 16px 16px}
.card-title{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.card-title a:hover{color:var(--brand)}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;font-size:12px;color:var(--text-3)}

/* 热播推荐 */
.hot-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);gap:24px}
.hot-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--shadow);min-height:420px;display:flex;align-items:flex-end}
.hot-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.hot-main:hover img{transform:scale(1.04)}
.hot-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,18,.1) 20%,rgba(10,9,18,.92) 88%)}
.hot-main-body{position:relative;z-index:2;padding:32px}
.hot-main-body h3{font-size:26px;font-weight:700;margin-bottom:10px}
.hot-main-body p{color:var(--text-2);font-size:14px;max-width:36em}
.hot-main-actions{display:flex;align-items:center;gap:14px;margin-top:20px;flex-wrap:wrap}
.score-pill{display:inline-flex;align-items:center;gap:6px;background:rgba(255,176,32,.16);border:1px solid rgba(255,176,32,.4);color:var(--amber);font-weight:700;font-size:14px;padding:6px 12px;border-radius:999px}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;gap:14px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:10px;transition:.3s}
.hot-item:hover{transform:translateY(-2px);border-color:rgba(43,227,176,.3);box-shadow:var(--shadow-hover)}
.hot-item img{width:96px;height:68px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.hot-item-body{min-width:0;display:flex;flex-direction:column;justify-content:center;gap:6px}
.hot-item-body h4{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-item-body p{font-size:12px;color:var(--text-3)}

/* Tab 片单 */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.tab{padding:9px 20px;border-radius:999px;border:1px solid var(--line);color:var(--text-2);font-size:14px;font-weight:600;transition:.25s}
.tab:hover{color:var(--text);border-color:rgba(255,255,255,.22)}
.tab.active{background:var(--brand);color:#08111A;border-color:transparent}
.tab-panel{display:none}
.tab-panel.is-active{display:block}
.grid-cards{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px}

/* 多端同步 */
.sync-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,0.9fr);gap:56px;align-items:center}
.sync-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.sync-item{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.sync-item i{color:var(--brand);font-size:18px}
.sync-item h4{font-size:15px;font-weight:600;margin:10px 0 6px}
.sync-item p{font-size:13px;color:var(--text-2)}
.sync-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:4/3}
.sync-media img{width:100%;height:100%;object-fit:cover}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.news-card{display:flex;gap:16px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);transition:.3s}
.news-card:hover{transform:translateY(-2px);border-color:rgba(43,227,176,.3);box-shadow:var(--shadow-hover)}
.news-cover{flex:0 0 96px;height:96px;border-radius:10px;overflow:hidden;background:var(--bg-3)}
.news-cover img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column;gap:6px}
.news-meta-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.news-time{font-size:12px;color:var(--text-3)}
.news-title{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-text{font-size:13px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{font-size:13px;font-weight:600;color:var(--brand);margin-top:2px}
.news-more:hover{text-decoration:underline;text-underline-offset:4px}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--bg-2)}
.empty-state i{font-size:40px;color:var(--text-3)}
.empty-state p{color:var(--text-2);font-size:14px}

/* 评价 */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.voice-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:14px}
.voice-card .stars{color:var(--amber);font-size:13px;letter-spacing:2px}
.voice-card p{font-size:14px;color:var(--text-2)}
.voice-user{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-2)}
.voice-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#2BE3B0,#7C5CFF);display:grid;place-items:center;color:#08111A;font-weight:700;font-size:14px}
.voice-user span{font-size:13px;color:var(--text-3)}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-2);margin-bottom:12px;overflow:hidden;transition:border-color .25s}
.faq-item.open{border-color:rgba(43,227,176,.35)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:12px 20px;text-align:left;font-size:16px;font-weight:600}
.faq-q i{color:var(--brand);transition:transform .3s;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{margin:0 20px 20px;padding-left:16px;border-left:3px solid var(--brand);color:var(--text-2);font-size:14px;background:rgba(255,255,255,.02);border-radius:0 10px 10px 0;padding:14px 18px}

/* CTA */
.cta-band{border-radius:var(--radius-lg);padding:64px 56px;background:linear-gradient(135deg,#7C5CFF 0%,#2B2350 46%,#0A0912 100%);border:1px solid rgba(124,92,255,.35);display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;box-shadow:0 30px 70px -40px rgba(124,92,255,.75)}
.cta-band h2{font-size:32px;font-weight:800}
.cta-band p{color:rgba(244,242,255,.78);margin-top:12px;max-width:44em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:#08070F;border-top:1px solid var(--line-2);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:14px}
.footer-text{font-size:13px;color:var(--text-3);max-width:32em}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col li+li{margin-top:10px}
.footer-col a{font-size:13px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-contact{font-size:13px;color:var(--text-2);margin-bottom:16px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{flex:1 1 160px;min-width:0;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:11px 14px;color:var(--text);transition:.25s}
.sub-form input::placeholder{color:var(--text-3)}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,227,176,.18)}
.sub-note{font-size:12px;color:var(--text-3);margin-top:10px;min-height:18px}
.footer-bottom{margin-top:56px;border-top:1px solid var(--line-2);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* 响应式 */
@media (max-width:1439px){
  .grid-cards{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .drawer{display:flex;position:fixed;inset:0;z-index:200;flex-direction:column;gap:6px;padding:88px 22px 28px;background:rgba(10,9,18,.98);transform:translateY(-102%);transition:transform .35s ease;overflow-y:auto}
  .drawer.is-open{transform:translateY(0)}
  .drawer a{font-size:16px;font-weight:600;padding:14px 16px;border-radius:12px;color:var(--text-2);border:1px solid transparent}
  .drawer a:hover,.drawer a.active{color:var(--text);background:rgba(43,227,176,.1);border-color:rgba(43,227,176,.3)}
  .drawer .btn{margin-top:18px;width:100%}
  .drawer-close{position:absolute;top:24px;right:22px;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text)}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .hero-thumbs{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .hot-grid{grid-template-columns:minmax(0,1fr)}
  .sync-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .voice-grid{grid-template-columns:minmax(0,1fr)}
  .grid-cards{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .container{padding:0 16px}
  .hero{min-height:72vh;padding:110px 0 52px}
  .hero-sub{font-size:15px}
  .hero-stats{gap:28px;margin-top:32px}
  .hero-stat .num{font-size:20px}
  .nav{height:60px}
  .nav-actions .btn-primary{display:none}
  .section-title{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:22px}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .sync-list{grid-template-columns:1fr}
  .cta-band{padding:40px 24px}
  .cta-band h2{font-size:24px}
  .hot-main{min-height:340px}
  .hot-main-body{padding:22px}
  .hot-main-body h3{font-size:21px}
  .site-footer{margin-top:56px;padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .grid-cards{grid-template-columns:1fr}
  .hero-thumbs{grid-template-columns:1fr 1fr}
  .hero-thumb:nth-child(3){display:none}
  .news-card{flex-direction:column}
  .news-cover{flex:0 0 auto;width:100%;height:150px}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
}

/* roulang page: article */
:root{
  --bg:#0A0912;
  --bg-2:#12101E;
  --bg-3:#1B1830;
  --primary:#2BE3B0;
  --secondary:#7C5CFF;
  --amber:#FFB020;
  --danger:#FF4D6D;
  --text:#F4F2FF;
  --muted:#A6A0C2;
  --faint:#6E688C;
  --line:rgba(255,255,255,.08);
  --divide:rgba(255,255,255,.06);
  --r-card:14px;
  --r-block:20px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --grad:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);
  --w:1320px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,9,18,.72);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(10,9,18,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.01em;flex:0 0 auto}
.logo:hover{color:var(--text)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--grad);
  color:#07120E;font-size:13px;box-shadow:0 10px 24px -12px rgba(43,227,176,.75);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav-links > a{padding:9px 14px;border-radius:10px;font-size:15px;color:var(--muted);white-space:nowrap}
.nav-links > a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links > a.active{color:var(--primary);background:rgba(43,227,176,.12)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.02);color:var(--muted);cursor:pointer;
  transition:border-color .2s,color .2s,background .2s;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(43,227,176,.08)}
.menu-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--text);cursor:pointer}
.menu-toggle:hover{border-color:var(--primary);color:var(--primary)}
.drawer-cta{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:600;font-size:15px;
  padding:12px 22px;border-radius:999px;white-space:nowrap;
  transition:transform .18s ease,box-shadow .28s ease,background .28s ease,filter .28s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#07120E;box-shadow:0 14px 34px -18px rgba(43,227,176,.85)}
.btn-primary:hover{filter:brightness(1.08);color:#07120E;box-shadow:0 18px 42px -16px rgba(43,227,176,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);border-radius:10px}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}

/* ---------- Article head ---------- */
.article-head{position:relative;overflow:hidden;padding:44px 0 44px;border-bottom:1px solid var(--divide)}
.article-head-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.30;
}
.article-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,9,18,.58) 0%,rgba(10,9,18,.88) 58%,var(--bg) 100%);
}
.article-head-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);flex-wrap:wrap;margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:var(--faint)}
.breadcrumb .current{color:var(--faint);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kicker{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--amber);background:rgba(255,176,32,.12);
  border:1px solid rgba(255,176,32,.28);
  padding:6px 12px;border-radius:6px;margin-bottom:18px;
}
.article-head h1{
  font-size:clamp(30px,4vw,50px);font-weight:800;letter-spacing:-.01em;
  max-width:960px;line-height:1.22;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--primary);font-size:12px}

/* ---------- Article body ---------- */
.article-main{padding:56px 0 0}
.article-wrap{max-width:760px;margin:0 auto}
.article-cover{
  border-radius:var(--r-block);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;margin-bottom:36px;box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.prose{font-size:16px;line-height:1.8;color:#E7E4F7;max-width:760px;margin:0 auto;word-break:break-word}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 20px}
.prose h2{
  font-size:clamp(21px,2.4vw,27px);font-weight:700;margin:44px 0 18px;
  padding-left:14px;border-left:3px solid var(--primary);line-height:1.35;color:var(--text);
}
.prose h3{font-size:20px;font-weight:600;margin:32px 0 14px;color:var(--text)}
.prose h4{font-size:17px;font-weight:600;margin:24px 0 12px;color:var(--text)}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.prose a:hover{color:#7CF3D3}
.prose strong{color:#fff;font-weight:700}
.prose blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:rgba(43,227,176,.06);border-radius:0 12px 12px 0;color:var(--muted);font-size:15px;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose ul,.prose ol{margin:0 0 22px;padding:0}
.prose ul li{position:relative;padding-left:22px;margin-bottom:10px}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(43,227,176,.7);
}
.prose ol{counter-reset:li;padding-left:0}
.prose ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:li}
.prose ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;
  width:20px;height:20px;border-radius:6px;background:rgba(43,227,176,.14);
  color:var(--primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.prose img{border-radius:var(--r-card);margin:26px 0;border:1px solid var(--line)}
.prose figure{margin:26px 0}
.prose figcaption,.prose em.caption{
  display:block;margin-top:10px;font-size:13px;color:var(--faint);text-align:center;font-style:normal;
}
.prose table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--divide);text-align:left}
.prose th{background:rgba(255,255,255,.04);font-weight:600;color:var(--text)}
.prose tr:last-child td{border-bottom:0}
.prose hr{border:0;border-top:1px solid var(--divide);margin:36px 0}
.prose code{background:rgba(124,92,255,.16);color:#C9BDFF;padding:2px 6px;border-radius:6px;font-size:14px}

.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  text-align:center;padding:64px 24px;background:var(--bg-2);
  border:1px dashed var(--line);border-radius:var(--r-block);
}
.empty-state i{font-size:40px;color:var(--faint)}
.empty-state p{color:var(--muted);font-size:15px}

/* ---------- Tags ---------- */
.tags{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:48px auto 0;max-width:760px}
.tags-label{font-size:13px;color:var(--faint);margin-right:4px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--muted);padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:border-color .2s,color .2s,background .2s;
}
.chip:hover{border-color:var(--primary);color:var(--primary);background:rgba(43,227,176,.08)}
.chip.is-active{background:var(--primary);color:#07120E;border-color:transparent;font-weight:600}

/* ---------- Sections ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-head p{color:var(--muted);font-size:14px;margin-top:8px}
.section-more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.section-more:hover{color:#7CF3D3;text-decoration:underline;text-underline-offset:4px}

/* ---------- Rail ---------- */
.rail-mask{position:relative}
.rail-mask::after{
  content:"";position:absolute;top:0;right:0;bottom:12px;width:80px;pointer-events:none;
  background:linear-gradient(90deg,rgba(10,9,18,0) 0%,var(--bg) 92%);
}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.rail > *{flex:0 0 240px;scroll-snap-align:start}
.tile{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);display:block;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.35);color:inherit}
.tile .thumb{aspect-ratio:3/4;overflow:hidden;background:var(--bg-3)}
.tile .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.tile:hover .thumb img{transform:scale(1.04)}
.tile .tile-body{padding:14px 16px 16px}
.tile .badge{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;
  padding:4px 9px;border-radius:6px;background:rgba(124,92,255,.16);color:#B9A9FF;margin-bottom:10px;
}
.tile h3{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tile .tile-meta{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--faint)}
.tile .tile-meta i{color:var(--primary)}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-block);padding:52px 40px;text-align:center;
  background:linear-gradient(135deg,rgba(124,92,255,.28) 0%,rgba(43,227,176,.16) 100%);
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 240px at 20% 0%,rgba(43,227,176,.22),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);font-weight:800;position:relative}
.cta-band p{color:var(--muted);margin:14px auto 26px;max-width:620px;font-size:15px;position:relative}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:56px 0 24px;margin-top:16px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:14px}
.footer-text{color:var(--muted);font-size:14px;line-height:1.8}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-contact{color:var(--muted);font-size:14px;margin-bottom:14px}
.sub-form{display:flex;gap:8px}
.sub-form input{
  flex:1;min-width:0;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;
  padding:11px 13px;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--faint)}
.sub-form input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,227,176,.18)}
.sub-note{font-size:12px;color:var(--faint);margin-top:10px}
.sub-note.err{color:var(--danger)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--divide);margin-top:40px;padding-top:20px;
  font-size:13px;color:var(--faint);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav{height:60px;gap:12px}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    background:rgba(10,9,18,.97);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    padding:20px;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s ease;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links > a{padding:14px 16px;font-size:16px;border-radius:12px}
  .drawer-cta{display:inline-flex;margin-top:auto;width:100%;padding:15px 20px}
  .nav-actions .btn-primary,.nav-actions .icon-btn{display:none}
  .menu-toggle{display:inline-flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:52px 0}
  .article-main{padding:40px 0 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-head{padding:32px 0 34px}
  .breadcrumb{margin-bottom:16px}
  .meta-row{gap:8px 16px;margin-top:18px}
  .article-cover{aspect-ratio:3/2;margin-bottom:26px}
  .prose{font-size:15.5px}
  .prose h2{margin-top:34px}
  .section{padding:44px 0}
  .cta-band{padding:38px 22px}
  .rail > *{flex:0 0 200px}
  .rail-mask::after{width:48px}
  .tags{margin-top:36px}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions .btn{width:100%}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .rail > *{flex:0 0 78%}
}

/* roulang page: category1 */
:root{
  --bg:#0A0912;
  --bg-card:#12101E;
  --bg-elev:#1B1830;
  --brand:#2BE3B0;
  --brand-2:#7C5CFF;
  --amber:#FFB020;
  --danger:#FF4D6D;
  --text:#F4F2FF;
  --text-2:#A6A0C2;
  --text-3:#6E688C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.06);
  --grad-brand:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);
  --r-card:14px;
  --r-lg:20px;
  --r-sm:10px;
  --r-badge:6px;
  --sh-card:0 18px 40px -18px rgba(0,0,0,.85);
  --sh-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --gut:24px;
  --sec:88px;
  --nav-h:72px;
  font-size:16px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(43,227,176,.3);}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,9,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-2);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{background:rgba(10,9,18,.94);border-bottom-color:var(--line);box-shadow:0 14px 30px -22px rgba(0,0,0,.95);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-brand);color:#08120F;font-size:13px;
  box-shadow:0 10px 24px -12px rgba(43,227,176,.75);
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:14px;color:var(--text-2);font-weight:500;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-links a.active{color:#08120F;background:var(--grad-brand);font-weight:700;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:14px;font-weight:700;
  border:1px solid transparent;transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#08120F;box-shadow:0 12px 30px -14px rgba(43,227,176,.75);}
.btn-primary:hover{color:#08120F;transform:translateY(-2px);box-shadow:0 18px 38px -14px rgba(43,227,176,.9);filter:brightness(1.06);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:13px;}
.btn:active{transform:translateY(0);}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);font-size:15px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--text);font-size:16px;place-items:center;}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:calc(var(--nav-h) + 46px) 0 72px;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(10,9,18,.62) 0%,rgba(10,9,18,.86) 55%,var(--bg) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.34),transparent 65%);pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,176,32,.14);border:1px solid rgba(255,176,32,.4);
  color:var(--amber);font-size:12px;font-weight:700;letter-spacing:.04em;margin-bottom:20px;
}
.cat-hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.01em;max-width:16em;}
.cat-hero h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:640px;line-height:1.7;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line-2);
}
.stat b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat span{font-size:13px;color:var(--text-3);}

/* ---------- chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.chip{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.02);color:var(--text-2);font-size:13px;font-weight:500;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.active{background:var(--grad-brand);color:#08120F;border-color:transparent;font-weight:700;}

/* ---------- section ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:linear-gradient(180deg,rgba(27,24,48,.55) 0%,rgba(10,9,18,0) 100%);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;}
.sec-head p{margin-top:10px;color:var(--text-2);font-size:14px;max-width:720px;}
.sec-link{color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;gap:8px;}
.sec-link:hover{color:var(--brand);gap:12px;}

/* ---------- card grid ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gut);}
.card{
  background:var(--bg-card);border:1px solid var(--line-2);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(43,227,176,.35);}
.card-media{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--bg-elev);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(10,9,18,.82) 100%);}
.card-score{
  position:absolute;top:12px;right:12px;z-index:3;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(255,176,32,.92);color:#22160A;font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}
.card-tag{
  position:absolute;left:12px;bottom:12px;z-index:3;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(10,9,18,.72);border:1px solid var(--line);color:var(--brand);
  font-size:12px;font-weight:600;backdrop-filter:blur(6px);
}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{font-size:16px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:13px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.card-meta span i{color:var(--brand);margin-right:5px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gut);}
.step{
  position:relative;padding:26px 22px;border-radius:var(--r-lg);
  background:var(--bg-card);border:1px solid var(--line-2);box-shadow:var(--sh-card);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(43,227,176,.3);}
.step::before{content:"";position:absolute;left:0;top:22px;width:3px;height:26px;background:var(--grad-brand);border-radius:0 3px 3px 0;}
.step-no{font-size:13px;font-weight:800;color:var(--amber);letter-spacing:.08em;font-variant-numeric:tabular-nums;}
.step h3{margin-top:12px;font-size:17px;font-weight:700;}
.step p{margin-top:10px;font-size:13.5px;color:var(--text-2);}

/* ---------- brief list ---------- */
.brief-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.brief{
  display:flex;gap:16px;padding:14px;border-radius:var(--r-card);
  background:var(--bg-card);border:1px solid var(--line-2);box-shadow:var(--sh-card);
  transition:transform .2s ease,border-color .2s ease;
}
.brief:hover{transform:translateY(-2px);border-color:rgba(124,92,255,.4);}
.brief-media{flex:0 0 104px;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--bg-elev);}
.brief-media img{width:100%;height:100%;object-fit:cover;}
.brief-info{min-width:0;display:flex;flex-direction:column;gap:6px;}
.brief-info h3{font-size:15px;font-weight:700;}
.brief-info p{font-size:13px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.brief-info .meta{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;display:flex;gap:14px;flex-wrap:wrap;}
.brief-info .meta b{color:var(--brand);font-weight:700;}

/* ---------- feature band ---------- */
.feature-band{
  border-radius:var(--r-lg);border:1px solid var(--line-2);
  background:linear-gradient(135deg,rgba(27,24,48,.95),rgba(18,16,30,.98));
  padding:40px;display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--sh-card);position:relative;overflow:hidden;
}
.feature-band::after{content:"";position:absolute;left:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(43,227,176,.2),transparent 65%);}
.feature-band > *{position:relative;z-index:2;}
.feature-band h2{font-size:clamp(20px,2.3vw,27px);}
.feature-band p{margin-top:14px;color:var(--text-2);font-size:14.5px;}
.param-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.param{
  padding:16px;border-radius:12px;background:rgba(10,9,18,.6);border:1px solid var(--line-2);
}
.param b{display:block;font-size:20px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}
.param span{font-size:12.5px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line-2);border-radius:var(--r-card);background:var(--bg-card);overflow:hidden;transition:border-color .2s ease;}
.faq-item.open{border-color:rgba(43,227,176,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:15.5px;font-weight:600;text-align:left;color:var(--text);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;border:1px solid var(--line);color:var(--brand);font-size:12px;transition:transform .25s ease,background .2s ease;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(43,227,176,.14);border-color:rgba(43,227,176,.4);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:2px 20px 20px 23px;border-left:3px solid var(--brand);margin-left:20px;color:var(--text-2);font-size:14px;line-height:1.8;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:64px 40px;text-align:center;
  background-image:linear-gradient(135deg,rgba(43,227,176,.16),rgba(124,92,255,.34)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  border:1px solid var(--line-2);
}
.cta-band h2{font-size:clamp(23px,3vw,34px);font-weight:800;letter-spacing:-.01em;}
.cta-band p{margin:16px auto 0;max-width:620px;color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:30px;}

/* ---------- empty ---------- */
.empty{
  display:none;flex-direction:column;align-items:center;gap:12px;padding:56px 20px;
  border:1px dashed var(--line);border-radius:var(--r-card);color:var(--text-3);text-align:center;
}
.empty i{font-size:40px;color:var(--text-3);}

/* ---------- footer ---------- */
.site-footer{background:#08070F;border-top:1px solid var(--line-2);padding:64px 0 28px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:16px;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13.5px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--brand);}
.footer-text{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.footer-contact{font-size:13px;color:var(--text-3);margin-bottom:12px;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 150px;min-width:0;padding:11px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,227,176,.16);background:rgba(43,227,176,.05);}
.sub-note{margin-top:10px;font-size:12px;color:var(--text-3);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1439px){
  .grid-cards{grid-template-columns:repeat(4,minmax(0,1fr));}
}
@media (max-width:1199px){
  :root{--sec:76px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-band{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:1023px){
  :root{--nav-h:60px;--sec:64px;}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 20px 26px;
    background:rgba(10,9,18,.97);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 60px);overflow-y:auto;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .25s ease,opacity .25s ease;
  }
  body.nav-open .nav-links{transform:none;opacity:1;pointer-events:auto;}
  .nav-links a{padding:13px 6px;border-bottom:1px solid var(--line-2);border-radius:0;font-size:15px;}
  .nav-links a.active{background:transparent;color:var(--brand);border-bottom-color:rgba(43,227,176,.35);}
  .menu-toggle{display:grid;}
  .icon-btn{display:none;}
  .nav-actions .btn-primary{padding:10px 16px;font-size:13px;}
  .grid-cards{grid-template-columns:repeat(3,minmax(0,1fr));}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .brief-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sec:56px;--gut:16px;}
  .container{padding:0 16px;}
  .cat-hero{padding-top:calc(var(--nav-h) + 30px);padding-bottom:52px;}
  .hero-sub{font-size:15.5px;}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:1fr;}
  .param-grid{grid-template-columns:1fr 1fr;}
  .feature-band{padding:26px 20px;}
  .cta-band{padding:44px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-a-inner{margin-left:14px;padding-left:16px;}
  .sec-head{margin-bottom:26px;}
}
@media (max-width:519px){
  .grid-cards{grid-template-columns:1fr;}
  .brief-media{flex-basis:88px;}
  .nav-actions .btn-primary{display:none;}
  .hero-cta .btn{flex:1 1 100%;}
  .param-grid{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --brand:#2BE3B0;
  --brand-deep:#17B98C;
  --violet:#7C5CFF;
  --gold:#FFB020;
  --danger:#FF4D6D;
  --bg:#0A0912;
  --card:#12101E;
  --elev:#1B1830;
  --line:rgba(255,255,255,.08);
  --split:rgba(255,255,255,.06);
  --text:#F4F2FF;
  --muted:#A6A0C2;
  --faint:#6E688C;
  --grad:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);
  --r-card:14px;
  --r-block:20px;
  --r-btn:999px;
  --r-sm:10px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --container:1320px;
  --gap:24px;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:72px; --s9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
input,button,select,textarea{font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(10,9,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(10,9,18,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.nav{display:flex;align-items:center;gap:var(--s5);height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--text);flex-shrink:0;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad);color:#06110D;font-size:13px;
  box-shadow:0 8px 20px -10px rgba(43,227,176,.9);
}
.nav-links{display:flex;align-items:center;gap:var(--s5);margin-left:var(--s5);flex:1;min-width:0;}
.nav-links a{
  position:relative;font-size:15px;color:var(--muted);padding:6px 2px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--text);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:var(--s3);flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);background:transparent;
  transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--text);cursor:pointer;
}
.menu-toggle:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;cursor:pointer;border:1px solid transparent;
  padding:12px 26px;border-radius:var(--r-btn);font-size:15px;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn i{font-size:13px;}
.btn-primary{background:var(--grad);color:#06110D;box-shadow:0 12px 28px -14px rgba(43,227,176,.85);}
.btn-primary:hover{color:#06110D;filter:brightness(1.08);box-shadow:0 16px 36px -14px rgba(43,227,176,1);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);border-radius:var(--r-sm);}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--text);border-color:rgba(255,255,255,.22);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);}
.btn:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background-image:
    linear-gradient(180deg,rgba(10,9,18,.78) 0%,rgba(10,9,18,.9) 55%,#0A0912 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);}
.breadcrumb i{font-size:10px;color:var(--faint);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:6px;font-size:12px;font-weight:700;
  color:#241802;background:var(--gold);letter-spacing:.02em;margin-bottom:20px;
}
.hero-badge i{font-size:11px;}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;letter-spacing:-.02em;max-width:16em;margin-bottom:18px;
}
.cat-hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{color:var(--muted);font-size:17px;max-width:640px;line-height:1.85;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s5);
  margin-top:52px;padding-top:28px;border-top:1px solid var(--split);
}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.stat span{font-size:13px;color:var(--faint);}

/* ---------- Section base ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--card);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s5);margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;}
.more-link{font-size:14px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.more-link:hover{color:var(--text);}
.more-link i{font-size:11px;}

/* ---------- Chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:transparent;cursor:pointer;
  transition:all .22s ease;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.22);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#06110D;font-weight:700;}
.chip i{font-size:11px;}

/* ---------- Feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.feature-card{
  background:var(--elev);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;position:relative;overflow:hidden;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.feature-card::after{
  content:"";position:absolute;top:-40px;left:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,176,.16),transparent 68%);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.35);}
.feature-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,227,176,.12);color:var(--brand);font-size:17px;margin-bottom:18px;position:relative;z-index:2;
}
.feature-card h3{font-size:18px;font-weight:600;margin-bottom:10px;position:relative;z-index:2;}
.feature-card p{font-size:14px;color:var(--muted);position:relative;z-index:2;}

/* ---------- Horizontal list rows ---------- */
.match-list{display:flex;flex-direction:column;gap:20px;}
.match-row{
  display:grid;grid-template-columns:300px 1fr auto;gap:var(--s5);align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-block);
  padding:18px;box-shadow:var(--shadow-card);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.match-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.3);}
.match-thumb{
  position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/9;background:var(--elev);
}
.match-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.match-row:hover .match-thumb img{transform:scale(1.05);}
.live-tag{
  position:absolute;top:10px;left:10px;display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;
  background:var(--danger);color:#fff;
}
.live-tag i{font-size:8px;animation:blink 1.4s infinite;}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.match-body h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.match-body h3 a:hover{color:var(--brand);}
.match-desc{font-size:14px;color:var(--muted);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.match-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 10px;border-radius:6px;
  background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--split);
}
.badge.brand{background:rgba(43,227,176,.13);color:var(--brand);border-color:rgba(43,227,176,.25);}
.badge.violet{background:rgba(124,92,255,.16);color:#B7A5FF;border-color:rgba(124,92,255,.3);}
.badge.gold{background:rgba(255,176,32,.14);color:var(--gold);border-color:rgba(255,176,32,.28);}
.match-side{display:flex;flex-direction:column;align-items:flex-end;gap:12px;min-width:170px;}
.match-time{font-size:13px;color:var(--faint);}
.match-score{font-size:22px;font-weight:800;letter-spacing:.02em;}

/* ---------- Schedule table ---------- */
.schedule-wrap{border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;background:var(--card);}
table.schedule{width:100%;border-collapse:collapse;font-size:15px;}
table.schedule th{
  text-align:left;padding:16px 20px;font-size:13px;font-weight:700;color:var(--faint);
  background:var(--elev);border-bottom:1px solid var(--line);letter-spacing:.03em;white-space:nowrap;
}
table.schedule td{padding:18px 20px;border-bottom:1px solid var(--split);color:var(--muted);vertical-align:middle;}
table.schedule tr:last-child td{border-bottom:none;}
table.schedule tr:hover td{background:rgba(255,255,255,.02);}
table.schedule td strong{color:var(--text);font-weight:600;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);counter-reset:step;}
.step{
  background:var(--elev);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;
  position:relative;
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;color:var(--brand);margin-bottom:14px;letter-spacing:.12em;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.step p{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .24s ease;}
.faq-item.open{border-color:rgba(43,227,176,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--s4);
  min-height:56px;padding:14px 22px;background:transparent;border:0;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);color:var(--brand);font-size:12px;transition:transform .26s ease;
}
.faq-item.open .sign{transform:rotate(180deg);background:var(--brand);color:#06110D;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{
  padding:2px 22px 22px 22px;color:var(--muted);font-size:15px;
  border-left:3px solid var(--brand);margin-left:22px;padding-left:18px;
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  background:linear-gradient(120deg,#1B1830 0%,#3A2C86 55%,#17B98C 100%);
  padding:64px 48px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 20%,rgba(43,227,176,.35),transparent 55%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:14px;}
.cta-band p{color:rgba(244,242,255,.82);max-width:640px;margin:0 auto 30px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:#07060E;border-top:1px solid var(--line);padding:72px 0 28px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:var(--s6);}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-text{color:var(--muted);font-size:14px;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:var(--muted);font-size:14px;}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact{color:var(--muted);font-size:14px;margin-bottom:16px;}
.sub-form{display:flex;gap:8px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:150px;background:var(--elev);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:11px 14px;color:var(--text);font-size:14px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.sub-form input::placeholder{color:var(--faint);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(43,227,176,.22);}
.sub-note{font-size:12px;color:var(--faint);margin-top:10px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:var(--s4);flex-wrap:wrap;
  margin-top:56px;padding-top:24px;border-top:1px solid var(--split);
  font-size:13px;color:var(--faint);
}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .match-row{grid-template-columns:240px 1fr auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1023px){
  .nav-links{display:none;position:fixed;inset:60px 0 0 0;flex-direction:column;align-items:flex-start;
    background:rgba(10,9,18,.98);padding:28px 20px;gap:6px;margin:0;overflow-y:auto;}
  .nav-links.open{display:flex;}
  .nav-links a{font-size:17px;padding:14px 0;width:100%;border-bottom:1px solid var(--split);}
  .nav-links a::after{display:none;}
  .menu-toggle{display:grid;place-items:center;}
  .nav{height:60px;}
  .nav-actions .btn-primary{display:none;}
  .section{padding:56px 0;}
  .cat-hero{padding:64px 0 52px;}
  .match-row{grid-template-columns:1fr;gap:var(--s4);}
  .match-side{align-items:flex-start;flex-direction:row;justify-content:space-between;width:100%;min-width:0;}
}
@media (max-width:767px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px;}
  .feature-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .schedule-wrap{overflow-x:auto;}
  table.schedule{min-width:620px;}
  .cta-band{padding:44px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .cat-hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .btn{padding:11px 20px;font-size:14px;}
  .match-row{padding:14px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0912;
  --bg-card:#12101E;
  --bg-elev:#1B1830;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --text:#F4F2FF;
  --muted:#A6A0C2;
  --dim:#6E688C;
  --brand:#2BE3B0;
  --brand-2:#7C5CFF;
  --gold:#FFB020;
  --red:#FF4D6D;
  --radius-sm:10px;
  --radius-card:14px;
  --radius-lg:20px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --container:1320px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;letter-spacing:.01em;
  padding:0 22px;height:44px;border-radius:999px;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);
  color:#07131A;
  box-shadow:0 12px 30px -14px rgba(43,227,176,.75);
}
.btn-primary:hover{
  color:#07131A;filter:brightness(1.08);
  box-shadow:0 16px 38px -12px rgba(43,227,176,.85);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--text);border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.btn-block{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,9,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.site-header.scrolled{background:rgba(10,9,18,.94);border-bottom-color:var(--line);}
.nav{display:flex;align-items:center;gap:28px;height:var(--nav-h);}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2BE3B0,#7C5CFF);
  color:#07131A;font-size:14px;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-links a{
  font-size:14.5px;font-weight:500;color:var(--muted);
  padding:8px 14px;border-radius:999px;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-links a.active{color:var(--brand);background:rgba(43,227,176,.1);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:44px;height:44px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--muted);transition:.2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(43,227,176,.08);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--text);font-size:16px;
  align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:72px 0 64px;
  background:
    linear-gradient(180deg,rgba(10,9,18,.55) 0%,rgba(10,9,18,.86) 62%,var(--bg) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.55;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:9px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:6px;
  background:rgba(255,176,32,.14);color:var(--gold);border:1px solid rgba(255,176,32,.32);
}
.badge-brand{background:rgba(43,227,176,.12);color:var(--brand);border-color:rgba(43,227,176,.3);}
.badge-purple{background:rgba(124,92,255,.16);color:#B9A6FF;border-color:rgba(124,92,255,.34);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:800;margin:18px 0 16px;max-width:900px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#2BE3B0,#7C5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16px;color:var(--muted);max-width:700px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.chip{
  font-size:13px;font-weight:500;color:var(--muted);
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.02);transition:.2s ease;cursor:pointer;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.22);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#07131A;font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-card);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.section-head p{color:var(--muted);font-size:14.5px;margin-top:10px;max-width:640px;}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{gap:10px;}

/* ---------- 大图 + 侧栏 ---------- */
.feature-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:28px;align-items:start;}
.feature-main{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-card);transition:box-shadow .3s ease,transform .3s ease;
}
.feature-main:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-main:hover .feature-media img{transform:scale(1.04);}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(18,16,30,.95) 100%);}
.feature-media .badge{position:absolute;top:16px;left:16px;z-index:2;}
.feature-body{padding:26px 26px 30px;}
.feature-body h3{font-size:22px;font-weight:700;margin-bottom:12px;}
.feature-body p{color:var(--muted);font-size:14.5px;}
.feature-meta{display:flex;flex-wrap:wrap;gap:18px;margin:20px 0 22px;font-size:13px;color:var(--dim);}
.feature-meta span{display:inline-flex;align-items:center;gap:6px;}
.feature-meta i{color:var(--brand);}
.side-panel{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-card);
}
.side-panel h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.side-panel .side-sub{font-size:13px;color:var(--dim);margin-bottom:18px;}
.sort-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed var(--line-soft);
}
.sort-list li:last-child{border-bottom:0;}
.sort-index{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--brand);
  background:rgba(43,227,176,.1);border:1px solid rgba(43,227,176,.24);
}
.sort-list h4{font-size:14.5px;font-weight:600;margin-bottom:4px;}
.sort-list p{font-size:12.5px;color:var(--dim);}
.side-cta{margin-top:20px;padding-top:20px;border-top:1px solid var(--line-soft);}

/* ---------- 场景卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);transition:.3s ease;display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.scene-cover{aspect-ratio:3/4;overflow:hidden;position:relative;}
.scene-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.scene-card:hover .scene-cover img{transform:scale(1.04);}
.scene-cover .badge{position:absolute;top:12px;left:12px;}
.scene-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-body h3{font-size:16px;font-weight:600;}
.scene-body p{font-size:13px;color:var(--muted);line-height:1.7;}
.scene-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--dim);}
.score{color:var(--gold);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.flow-item{
  position:relative;background:var(--bg-elev);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px 24px;
}
.flow-item::before{
  counter-increment:step;content:"0" counter(step);
  font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#2BE3B0,#7C5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:14px;
}
.flow-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.flow-item p{font-size:13.5px;color:var(--muted);}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;text-align:left;
}
.stat strong{
  display:block;font-size:32px;font-weight:800;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#2BE3B0,#7C5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;
}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-card);margin-bottom:12px;overflow:hidden;transition:border-color .25s ease;}
.faq-item.open{border-color:rgba(43,227,176,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;min-height:56px;text-align:left;font-size:15.5px;font-weight:600;color:var(--text);
}
.faq-q i{color:var(--brand);transition:transform .25s ease;font-size:14px;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{
  padding:4px 20px 20px 23px;font-size:14px;color:var(--muted);
  border-left:3px solid var(--brand);margin-left:20px;background:rgba(43,227,176,.03);
  border-radius:0 8px 8px 0;
}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--radius-lg);padding:56px 48px;
  background:linear-gradient(135deg,rgba(124,92,255,.35) 0%,rgba(43,227,176,.18) 100%),var(--bg-elev);
  border:1px solid rgba(124,92,255,.3);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,176,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;position:relative;z-index:2;}
.cta-band p{color:var(--muted);margin-top:12px;font-size:14.5px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-card);border-top:1px solid var(--line);margin-top:88px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:16px;}
.footer-text{font-size:13.5px;color:var(--muted);max-width:340px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:13.5px;color:var(--muted);}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact{font-size:13.5px;color:var(--muted);margin-bottom:14px;}
.sub-form{display:flex;gap:8px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:170px;height:38px;padding:0 14px;border-radius:var(--radius-sm);
  background:var(--bg);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--dim);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(43,227,176,.22);}
.sub-note{font-size:12.5px;color:var(--dim);margin-top:10px;}
.sub-note.ok{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .feature-layout{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:980px){
  :root{--nav-h:60px;}
  .menu-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:rgba(10,9,18,.98);border-bottom:1px solid var(--line);
    padding:12px 20px 22px;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease;
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-links a{padding:14px 4px;border-bottom:1px solid var(--line-soft);border-radius:0;}
  .nav-links a.active{background:transparent;}
  .nav-actions .icon-btn{display:none;}
  .nav-actions .btn-primary{display:none;}
}
@media (max-width:767px){
  .page-hero{padding:48px 0 44px;}
  .grid-3{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .feature-body{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{margin-top:0;}
}
@media (max-width:480px){
  .grid-4{grid-template-columns:1fr;}
  .stat strong{font-size:26px;}
  .page-hero h1{font-size:30px;}
}

/* roulang page: category4 */
:root{
  --brand:#2BE3B0;
  --brand-2:#7C5CFF;
  --amber:#FFB020;
  --danger:#FF4D6D;
  --bg:#0A0912;
  --bg-card:#12101E;
  --bg-elev:#1B1830;
  --line:rgba(255,255,255,.08);
  --divider:rgba(255,255,255,.06);
  --text:#F4F2FF;
  --muted:#A6A0C2;
  --faint:#6E688C;
  --radius:14px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-hover:0 24px 56px -20px rgba(43,227,176,.28);
  --grad:linear-gradient(135deg,#2BE3B0 0%,#7C5CFF 100%);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(43,227,176,.35);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{width:100%;max-width:1320px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,18,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.scrolled{background:rgba(10,9,18,.94);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:16px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad);color:#07060E;font-size:13px;
  box-shadow:0 8px 20px -8px rgba(43,227,176,.7);
}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:8px}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--muted);
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-links a.active{background:var(--grad);color:#07060E;font-weight:700}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  place-items:center;cursor:pointer;transition:.2s;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:700;font-size:14px;
  padding:12px 22px;border-radius:999px;transition:all .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#07060E}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 12px 30px -10px rgba(43,227,176,.6)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);border-radius:var(--radius-sm)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);transition:.22s;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:rgba(43,227,176,.08)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:76px 0 60px;
  background-image:linear-gradient(180deg,rgba(10,9,18,.66) 0%,rgba(10,9,18,.9) 58%,var(--bg) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--divider);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;
}
.hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:9px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--amber);
  background:rgba(255,176,32,.13);border:1px solid rgba(255,176,32,.3);
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.01em;
  margin:20px 0 16px;max-width:880px;
}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--muted);font-size:16px;max-width:660px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  padding:8px 16px;border-radius:999px;font-size:13px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  transition:all .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(43,227,176,.45)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#07060E;font-weight:700}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--divider);
}
.stat-num{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num span{font-size:14px;color:var(--brand);margin-left:4px;font-weight:700}
.stat-label{font-size:13px;color:var(--faint);margin-top:2px}

/* ---------- section ---------- */
.section{padding:88px 0}
.section-alt{background:#0D0B17;border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-head .sub{color:var(--muted);font-size:14px;margin-top:10px;max-width:640px}
.more-link{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.more-link:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  position:relative;padding:26px;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:all .25s ease;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;left:-40px;top:-40px;width:120px;height:120px;
  background:radial-gradient(circle,rgba(43,227,176,.22),transparent 70%);
  opacity:0;transition:opacity .3s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.35)}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,227,176,.12);color:var(--brand);font-size:17px;margin-bottom:18px;
}
.feature-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:14px}

/* ---------- rank list ---------- */
.rank-panel{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow);
}
.rank-meta{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:4px 6px 18px;border-bottom:1px solid var(--divider);margin-bottom:16px;
  font-size:13px;color:var(--faint);
}
.rank-meta strong{color:var(--text);font-weight:600}
.live-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--brand);
  margin-right:8px;box-shadow:0 0 0 4px rgba(43,227,176,.16);
}
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-row{
  display:grid;grid-template-columns:48px 96px minmax(0,1fr) 116px 96px 74px;
  align-items:center;gap:16px;
  padding:12px 16px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(255,255,255,.015);
  transition:all .22s ease;
}
.rank-row:hover{background:var(--bg-elev);border-color:rgba(43,227,176,.35);transform:translateX(3px)}
.rank-no{
  font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--faint);text-align:center;
}
.rank-row.top .rank-no{color:var(--amber);text-shadow:0 0 18px rgba(255,176,32,.4)}
.rank-thumb{width:96px;height:56px;border-radius:10px;object-fit:cover;background:var(--bg-elev)}
.rank-title{font-size:15px;font-weight:600;margin-bottom:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-sub{font-size:12.5px;color:var(--faint);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:600;white-space:nowrap;
  background:rgba(124,92,255,.14);color:#BCA9FF;border:1px solid rgba(124,92,255,.28);
}
.badge-brand{background:rgba(43,227,176,.13);color:var(--brand);border-color:rgba(43,227,176,.3)}
.badge-amber{background:rgba(255,176,32,.13);color:var(--amber);border-color:rgba(255,176,32,.3)}
.rank-heat{
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--text);text-align:right;line-height:1.3;
}
.trend{display:block;font-size:12px;font-weight:600;color:var(--brand)}
.trend.down{color:var(--danger)}
.trend.flat{color:var(--faint)}
.rank-action{
  padding:8px 0;text-align:center;border-radius:999px;font-size:13px;font-weight:600;
  border:1px solid var(--line);color:var(--muted);transition:.22s;
}
.rank-action:hover{background:var(--grad);border-color:transparent;color:#07060E}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{
  position:relative;padding:26px 24px;border-radius:var(--radius);
  background:var(--bg-elev);border:1px solid var(--line);transition:.25s;
}
.flow-step:hover{border-color:rgba(124,92,255,.45);transform:translateY(-2px)}
.flow-no{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);margin-bottom:14px}
.flow-step h3{font-size:16px;font-weight:600;margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--muted)}

/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-card);
  border:1px solid var(--line);box-shadow:var(--shadow);transition:all .28s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(43,227,176,.35)}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.scene-card:hover .scene-media img{transform:scale(1.05)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(18,16,30,.95) 100%)}
.scene-body{padding:22px}
.scene-body h3{font-size:17px;font-weight:600;margin-bottom:10px}
.scene-body p{font-size:14px;color:var(--muted)}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease;
}
.faq-item.open{border-color:rgba(43,227,176,.3)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:15px;font-weight:600;font-family:inherit;
}
.faq-q:hover{color:var(--brand)}
.faq-toggle{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-toggle::before,.faq-toggle::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--muted);border-radius:2px;transition:.25s ease;
}
.faq-toggle::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-toggle::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-toggle::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.open .faq-toggle::before{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{position:relative;margin:0 22px 20px 22px;padding-left:16px;color:var(--muted);font-size:14px}
.faq-a-inner::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--brand)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:60px 48px;text-align:center;
  background:linear-gradient(135deg,#241C4F 0%,#12101E 55%,#0E2A2A 100%);
  border:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.35),transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-100px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,227,176,.22),transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:14px}
.cta-band p{color:var(--muted);max-width:620px;margin:0 auto 30px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#080711;border-top:1px solid var(--line);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px}
.footer-text{font-size:13.5px;color:var(--muted);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-col ul a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-contact{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.sub-form{display:flex;gap:10px}
.sub-form input{
  flex:1;min-width:0;padding:11px 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:.2s;
}
.sub-form input::placeholder{color:var(--faint)}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,227,176,.16)}
.sub-note{font-size:12.5px;color:var(--faint);margin-top:12px}
.sub-note.err{color:var(--danger)}
.sub-note.ok{color:var(--brand)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--divider);
  font-size:13px;color:var(--faint);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  :root{--nav-h:64px}
  .nav-links{
    position:fixed;left:0;right:0;top:var(--nav-h);bottom:0;margin:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 20px 32px;background:rgba(10,9,18,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{padding:14px 16px;font-size:16px;border-radius:12px}
  .menu-toggle{display:grid}
  .flow{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .rank-row{grid-template-columns:42px 84px minmax(0,1fr) 92px 68px;gap:12px}
  .rank-badge{display:none}
  .rank-thumb{width:84px;height:50px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:52px 0 44px}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-band{padding:44px 22px}
  .site-footer{padding-top:56px;margin-top:56px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .feature-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .nav-actions .btn-primary{padding:10px 14px;font-size:13px}
  .icon-btn{width:38px;height:38px}
  .rank-panel{padding:12px}
  .rank-row{
    grid-template-columns:34px 64px minmax(0,1fr) auto;gap:10px;padding:10px 12px;
  }
  .rank-thumb{width:64px;height:42px}
  .rank-action{display:none}
  .rank-heat{font-size:13px}
  .rank-no{font-size:16px}
  .rank-title{font-size:14px}
  .rank-sub{font-size:11.5px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}