/* roulang page: index */
:root{
  --c-bg:#0d0b14;
  --c-bg-soft:#151223;
  --c-surface:#1c1830;
  --c-surface-2:#241f3d;
  --c-line:#2f2a49;
  --c-text:#f2ecff;
  --c-muted:#a49bc7;
  --c-primary:#ff2e6a;
  --c-primary-2:#ff6a3d;
  --c-accent:#7c5cff;
  --c-gold:#ffc857;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:32px;
  --sh-sm:0 4px 14px rgba(0,0,0,.25);
  --sh-md:0 10px 30px rgba(0,0,0,.35);
  --sh-glow:0 12px 40px rgba(255,46,106,.35);
  --sp-1:8px;--sp-2:14px;--sp-3:22px;--sp-4:34px;--sp-5:56px;--sp-6:88px;
  --f-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--f-sans);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit}
h1,h2,h3,h4{margin:0 0 var(--sp-2);line-height:1.25;font-weight:700;letter-spacing:.02em}
p{margin:0 0 var(--sp-2)}
ul{margin:0;padding:0;list-style:none}
.container{width:min(1200px,92%);margin-inline:auto}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,11,20,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;gap:24px;
}
.logo{
  display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;
  letter-spacing:.04em;
}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  display:grid;place-items:center;color:#fff;font-size:18px;
  box-shadow:var(--sh-glow);
}
.nav-links{display:flex;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:10px 16px;border-radius:999px;font-size:14px;color:var(--c-muted);
  border:1px solid transparent;
}
.nav-links a:hover{color:var(--c-text);background:var(--c-surface);border-color:var(--c-line)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));border-color:transparent}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;box-shadow:var(--sh-glow);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;font-size:22px}

/* hero */
.hero{
  position:relative;overflow:hidden;
  padding:var(--sp-6) 0 var(--sp-5);
  background:
    linear-gradient(120deg,rgba(13,11,20,.85),rgba(13,11,20,.55) 45%,rgba(13,11,20,.9)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:auto -10% -40% -10%;height:360px;
  background:radial-gradient(closest-side,rgba(255,46,106,.35),transparent 70%);
  filter:blur(60px);z-index:0;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line);color:var(--c-muted);
}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(255,46,106,.25)}
.hero h1{
  font-size:clamp(34px,5vw,58px);margin:18px 0 18px;
  background:linear-gradient(120deg,#fff 30%,#ffb1c6 60%,#ffdca8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{font-size:17px;color:var(--c-muted);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:12px;font-weight:600;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));color:#fff;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:520px}
.hero-stats .stat{
  padding:16px 18px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
}
.hero-stats .num{font-size:24px;font-weight:800;color:#fff}
.hero-stats .lb{font-size:12px;color:var(--c-muted);letter-spacing:.08em}

.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-md);border:1px solid var(--c-line);
}
.hero-card img{width:100%;height:420px;object-fit:cover;border-radius:0}
.hero-card .tag{
  position:absolute;top:16px;left:16px;
  background:rgba(0,0,0,.55);backdrop-filter:blur(8px);
  padding:6px 12px;border-radius:999px;font-size:12px;letter-spacing:.06em;
}
.hero-card .play{
  position:absolute;bottom:20px;left:20px;right:20px;
  display:flex;justify-content:space-between;align-items:center;color:#fff;
}
.hero-card .play .title{font-weight:700;font-size:16px}
.hero-card .play .meta{font-size:12px;color:#e6d9ff}
.hero-badge{
  position:absolute;bottom:-22px;right:-14px;
  padding:14px 18px;border-radius:16px;font-size:13px;
  background:linear-gradient(135deg,var(--c-accent),var(--c-primary));
  color:#fff;box-shadow:var(--sh-glow);font-weight:700;
}

/* section shell */
.section{padding:var(--sp-6) 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:var(--sp-4)}
.section-head h2{font-size:clamp(26px,3.4vw,38px)}
.section-head .sub{color:var(--c-muted);max-width:520px}
.section-head .link{color:var(--c-primary);font-weight:600;font-size:14px;white-space:nowrap}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--c-line);background:var(--c-surface);
  aspect-ratio:4/5;
  transition:transform .3s ease,box-shadow .3s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.cat-card img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.cat-card:hover img{transform:scale(1.06)}
.cat-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(13,11,20,.95));
}
.cat-card .cat-info{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;
}
.cat-card .cat-info .cn{font-size:18px;font-weight:700;margin-bottom:4px}
.cat-card .cat-info .desc{font-size:12px;color:#d9d0ff;opacity:.85}
.cat-card .badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 10px;border-radius:999px;font-size:11px;font-weight:600;
  background:rgba(255,46,106,.9);color:#fff;letter-spacing:.06em;
}

/* features */
.feat-bg{
  background:
    linear-gradient(180deg,rgba(13,11,20,.9),rgba(13,11,20,.75)),
    url('/assets/images/backpic/back-2.webp') center/cover fixed no-repeat;
}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{
  padding:28px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--c-line);
  transition:border-color .3s ease,transform .3s ease;
}
.feat:hover{border-color:var(--c-primary);transform:translateY(-3px)}
.feat .icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:16px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:grid;place-items:center;font-size:24px;color:#fff;
}
.feat h3{font-size:18px}
.feat p{color:var(--c-muted);font-size:14px;margin:0}

/* latest list */
.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.post{
  display:grid;grid-template-columns:180px 1fr;gap:18px;
  padding:16px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color .3s ease,background .3s ease;
}
.post:hover{border-color:var(--c-primary);background:var(--c-surface-2)}
.post .thumb{
  width:180px;height:120px;border-radius:10px;overflow:hidden;flex-shrink:0;
}
.post .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.post .meta{display:flex;gap:10px;font-size:12px;color:var(--c-muted);margin-bottom:8px}
.post .meta .cat{color:var(--c-primary);font-weight:600}
.post h3{font-size:16px;margin-bottom:8px;line-height:1.4}
.post h3 a:hover{color:var(--c-primary)}
.post p{font-size:13px;color:var(--c-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty{
  padding:40px;text-align:center;color:var(--c-muted);
  border:1px dashed var(--c-line);border-radius:var(--r-md);
  grid-column:1/-1;
}

/* how */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{
  padding:26px;border-radius:var(--r-lg);
  background:var(--c-surface);border:1px solid var(--c-line);position:relative;
}
.step::before{
  counter-increment:s;content:"0" counter(s);
  position:absolute;top:16px;right:20px;
  font-size:36px;font-weight:900;color:var(--c-primary);opacity:.25;
}
.step h4{font-size:17px}
.step p{color:var(--c-muted);font-size:14px;margin:0}

/* showcase */
.showcase{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.showcase-media{position:relative}
.showcase-media img{border-radius:var(--r-lg);height:460px;width:100%;object-fit:cover;box-shadow:var(--sh-md)}
.showcase-media .float{
  position:absolute;left:-20px;bottom:20px;
  background:var(--c-surface);border:1px solid var(--c-line);
  padding:14px 18px;border-radius:14px;display:flex;gap:12px;align-items:center;
  box-shadow:var(--sh-sm);
}
.showcase-media .float .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-accent))}
.showcase-media .float .t{font-size:13px;font-weight:600}
.showcase-media .float .s{font-size:11px;color:var(--c-muted)}
.showcase h2{font-size:34px}
.check-list li{
  display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-text);
}
.check-list li:last-child{border:none}
.check-list li::before{
  content:"✓";width:26px;height:26px;border-radius:50%;
  background:rgba(255,46,106,.15);color:var(--c-primary);
  display:grid;place-items:center;font-weight:800;flex-shrink:0;font-size:13px;
}

/* faq */
.faq-wrap{max-width:820px;margin:0 auto}
.faq{
  border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);margin-bottom:14px;overflow:hidden;
}
.faq summary{
  padding:20px 24px;font-weight:600;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
  list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--c-primary);transition:transform .3s ease}
.faq[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 24px 22px;color:var(--c-muted);margin:0;font-size:14px}

/* cta */
.cta{
  padding:var(--sp-5) 0;
  background:
    linear-gradient(120deg,rgba(255,46,106,.85),rgba(124,92,255,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;
}
.cta h2{font-size:clamp(28px,4vw,44px);color:#fff}
.cta p{color:#ffe0ea;max-width:640px;margin:0 auto 26px}
.cta .btn-ghost{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.35);color:#fff}
.cta .btn-primary{background:#fff;color:var(--c-primary)}
.cta .btn-primary:hover{color:var(--c-primary-2)}

/* footer */
.site-footer{
  background:#08060f;border-top:1px solid var(--c-line);padding:56px 0 24px;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.foot-brand p{color:var(--c-muted);font-size:14px;margin-top:14px;max-width:340px}
.foot-col h5{font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--c-muted);margin-bottom:16px}
.foot-col a{display:block;padding:5px 0;color:#d5cdf1;font-size:14px}
.foot-col a:hover{color:var(--c-primary)}
.foot-bottom{
  border-top:1px solid var(--c-line);padding-top:22px;
  display:flex;justify-content:space-between;color:var(--c-muted);font-size:13px;flex-wrap:wrap;gap:10px;
}

/* responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-card img{height:340px}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .showcase{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .menu-toggle{display:inline-flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    background:var(--c-bg-soft);border-bottom:1px solid var(--c-line);
    flex-direction:column;padding:14px;gap:6px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-cta{display:none}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .list-grid{grid-template-columns:1fr}
  .post{grid-template-columns:120px 1fr}
  .post .thumb{width:120px;height:90px}
  .section{padding:var(--sp-5) 0}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .feat-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cat-card{aspect-ratio:3/4}
}

/* roulang page: article */
:root{
  --c-bg:#0d0912;
  --c-bg-2:#141020;
  --c-panel:#1a1526;
  --c-panel-2:#221b31;
  --c-line:#2c2440;
  --c-text:#f2eef7;
  --c-mute:#a89fbe;
  --c-brand:#ff3d7f;
  --c-brand-2:#ffb43d;
  --c-brand-3:#7c5cff;
  --c-accent:#28d4a4;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 4px 18px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(255,61,127,.18);
  --sp:clamp(64px,8vw,112px);
  --ff:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--ff);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-brand)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,9,18,.82);
  backdrop-filter:saturate(140%) blur(14px);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--c-line);
}
.site-header .nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:16px 24px;
}
.logo{display:inline-flex;align-items:center;gap:12px;font-weight:800;font-size:19px;letter-spacing:.02em}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-weight:900;box-shadow:var(--sh-2);
}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--c-mute);
  transition:all .2s ease;
}
.nav-links a:hover{color:#fff;background:var(--c-panel)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,rgba(255,61,127,.18),rgba(124,92,255,.18));border:1px solid rgba(255,61,127,.35)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:11px 18px;border-radius:999px;font-weight:700;font-size:14.5px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff !important;box-shadow:var(--sh-2);
}
.nav-cta:hover{transform:translateY(-1px)}
.menu-toggle{display:none;font-size:22px;padding:6px 10px;border-radius:8px;color:#fff}

/* article hero */
.article-hero{
  position:relative;padding:64px 0 44px;
  background:
    linear-gradient(180deg,rgba(13,9,18,.55) 0%,rgba(13,9,18,.92) 90%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-mute);margin-bottom:22px;
}
.crumb a{color:var(--c-mute)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .cur{color:#fff}

.article-head{max-width:880px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(255,61,127,.14);color:#ffbcd0;border:1px solid rgba(255,61,127,.28);
}
.tag.alt{background:rgba(124,92,255,.14);color:#c9bcff;border-color:rgba(124,92,255,.3)}
.tag.acc{background:rgba(40,212,164,.12);color:#8ee8cf;border-color:rgba(40,212,164,.3)}

h1.article-title{
  font-size:clamp(28px,4vw,44px);letter-spacing:.005em;
  background:linear-gradient(180deg,#fff 0%,#e3d9ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  color:var(--c-mute);font-size:14px;
}
.meta-row .m{display:inline-flex;align-items:center;gap:6px}
.meta-row .m b{color:#fff;font-weight:600}
.meta-row .dot{width:4px;height:4px;background:var(--c-line);border-radius:50%}

/* layout */
.article-main{padding:56px 0 40px;background:linear-gradient(180deg,var(--c-bg) 0%,var(--c-bg-2) 100%)}
.a-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:flex-start;
}
.a-content{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:44px 48px;
  box-shadow:var(--sh-1);
}
.a-content .lead{
  font-size:17px;color:#dcd3ea;padding:18px 22px;
  background:linear-gradient(135deg,rgba(255,61,127,.08),rgba(124,92,255,.08));
  border-left:3px solid var(--c-brand);border-radius:10px;margin-bottom:28px;
}
.a-body{font-size:16.5px;color:#e6dff5}
.a-body :where(h2,h3){margin:34px 0 14px;color:#fff}
.a-body h2{font-size:24px;padding-bottom:10px;border-bottom:1px solid var(--c-line)}
.a-body h3{font-size:19px;color:#ffcbdc}
.a-body p{margin:0 0 16px}
.a-body ul,.a-body ol{padding-left:22px;margin:0 0 18px}
.a-body li{margin-bottom:8px}
.a-body a{color:var(--c-brand-2);text-decoration:underline;text-underline-offset:3px}
.a-body img{border-radius:12px;margin:16px 0}
.a-body blockquote{
  margin:18px 0;padding:16px 20px;
  background:rgba(124,92,255,.08);border-left:3px solid var(--c-brand-3);
  border-radius:8px;color:#d7cff0;
}
.a-body code{
  padding:2px 8px;background:#2b2340;color:#ffcbdc;border-radius:6px;font-size:.92em;
}
.a-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.a-body th,.a-body td{padding:10px 12px;border:1px solid var(--c-line);text-align:left}
.a-body th{background:#241c37;color:#fff}

.share-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);
}
.share-row .lbl{color:var(--c-mute);font-size:14px}
.share-btns{display:flex;flex-wrap:wrap;gap:8px}
.share-btns a{
  padding:8px 14px;font-size:13.5px;border-radius:999px;
  background:var(--c-panel-2);color:#e6dff5;border:1px solid var(--c-line);
}
.share-btns a:hover{border-color:var(--c-brand);color:#fff}

.notfound{
  text-align:center;padding:80px 20px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-lg);
}
.notfound h2{font-size:26px;margin-bottom:12px}
.notfound p{color:var(--c-mute);margin-bottom:22px}
.notfound .btn{
  display:inline-flex;padding:12px 26px;border-radius:999px;font-weight:700;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;
}

/* aside */
.a-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:22px 22px 24px;
}
.side-card h4{
  font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:#ffbcd0;
  margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.side-card h4::before{content:"";width:6px;height:16px;border-radius:3px;background:linear-gradient(180deg,var(--c-brand),var(--c-brand-2))}

.latest-list{display:flex;flex-direction:column;gap:14px}
.latest-item{
  display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:12px;
  transition:background .2s ease;
}
.latest-item:hover{background:var(--c-panel-2)}
.latest-item .idx{
  flex:none;width:26px;height:26px;border-radius:8px;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(255,61,127,.2),rgba(255,180,61,.2));
  color:#ffbcd0;border:1px solid rgba(255,61,127,.3);
}
.latest-item .txt{flex:1;min-width:0}
.latest-item .t{
  font-size:14px;color:#e6dff5;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-item:hover .t{color:#fff}
.latest-item .d{font-size:12px;color:var(--c-mute);margin-top:4px}

.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  padding:6px 12px;font-size:12.5px;border-radius:999px;
  background:var(--c-panel-2);border:1px solid var(--c-line);color:var(--c-mute);
}
.tag-cloud a:hover{border-color:var(--c-brand);color:#fff}

.side-cta{
  background:linear-gradient(135deg,rgba(255,61,127,.22),rgba(124,92,255,.22));
  border:1px solid rgba(255,61,127,.35);
  padding:24px;
}
.side-cta h4{color:#fff}
.side-cta h4::before{background:#fff}
.side-cta p{font-size:14px;color:#eadff7;margin-bottom:14px}
.side-cta .btn{
  display:inline-flex;padding:10px 18px;border-radius:999px;font-weight:700;font-size:13.5px;
  background:#fff;color:#1a1526;
}
.side-cta .btn:hover{background:#ffe1ea;color:#1a1526}

.side-cover{border-radius:14px;overflow:hidden;position:relative}
.side-cover img{aspect-ratio:16/10;object-fit:cover;width:100%}
.side-cover .cap{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.78));
  font-size:13.5px;color:#fff;
}

/* related */
.related-sec{padding:var(--sp) 0;background:var(--c-bg-2)}
.sec-head{max-width:820px;margin:0 auto 42px;text-align:center}
.sec-eyebrow{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:12.5px;
  color:#ffbcd0;background:rgba(255,61,127,.14);border:1px solid rgba(255,61,127,.28);
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.sec-head p{color:var(--c-mute);font-size:15.5px}

.rel-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.rel-card{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.rel-card:hover{
  transform:translateY(-4px);border-color:rgba(255,61,127,.5);
  box-shadow:0 22px 44px rgba(0,0,0,.5);
}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.06)}
.rel-thumb .badge{
  position:absolute;top:12px;left:12px;padding:5px 10px;font-size:11.5px;
  background:rgba(0,0,0,.72);color:#fff;border-radius:6px;font-weight:600;
}
.rel-body{padding:18px 18px 20px;flex:1;display:flex;flex-direction:column;gap:10px}
.rel-cat{font-size:12px;color:var(--c-brand-2);letter-spacing:.05em;text-transform:uppercase}
.rel-body h3{
  font-size:16px;color:#fff;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body p{
  color:var(--c-mute);font-size:13.5px;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--c-mute);margin-top:auto;padding-top:10px;border-top:1px dashed var(--c-line)}
.rel-foot .go{color:var(--c-brand);font-weight:600}

/* cta strip */
.cta-strip{
  padding:var(--sp) 0;
  background:
    linear-gradient(120deg,rgba(255,61,127,.6),rgba(124,92,255,.5)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:rgba(13,9,18,.55);border:1px solid rgba(255,255,255,.14);
  padding:36px 40px;border-radius:var(--r-lg);
  backdrop-filter:blur(10px);
}
.cta-inner h3{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.cta-inner p{color:#eadff7;font-size:15px;max-width:640px}
.cta-inner .btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;
  display:inline-flex;align-items:center;gap:6px;box-shadow:var(--sh-2);
}
.btn-primary:hover{transform:translateY(-1px);color:#fff}
.btn-ghost{
  padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid rgba(255,255,255,.4);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* footer */
.site-footer{background:#0a0710;border-top:1px solid var(--c-line);padding:64px 0 30px;color:var(--c-mute)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.75;max-width:340px}
.foot-col h5{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.04em}
.foot-col a{display:block;padding:6px 0;font-size:14px;color:var(--c-mute)}
.foot-col a:hover{color:var(--c-brand)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:24px;border-top:1px solid var(--c-line);font-size:13px;
}

/* responsive */
@media (max-width:1080px){
  .a-grid{grid-template-columns:1fr;gap:32px}
  .a-side{position:static}
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:820px){
  .nav-links,.nav-cta{display:none}
  .menu-toggle{display:inline-block}
  .nav-links.open{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;top:100%;left:0;right:0;padding:14px 18px;
    background:rgba(13,9,18,.98);border-bottom:1px solid var(--c-line);
  }
  .nav-links.open a{padding:10px 14px;border-radius:10px}
  .a-content{padding:28px 22px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{padding:26px 22px}
}
@media (max-width:520px){
  .article-hero{padding:44px 0 30px}
  h1.article-title{font-size:26px}
  .a-content{padding:22px 18px}
  .a-body{font-size:15.5px}
  .rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;text-align:center}
  .site-header .nav{padding:14px 16px}
}

/* roulang page: category1 */
:root{
  --bg:#0d0b12;
  --bg-alt:#141220;
  --surface:#1a1726;
  --surface-2:#221e33;
  --border:#2c2740;
  --text:#f2eef7;
  --muted:#a49dbb;
  --primary:#ff3e7f;
  --primary-2:#ff6b45;
  --accent:#8b5cf6;
  --gold:#f4c15d;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 20px 60px rgba(255,62,127,.18);
  --gap:24px;
  --tr:.25s ease;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit}
.container{width:min(1200px,92%);margin:0 auto}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,11,18,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.site-header .nav{
  display:flex;align-items:center;gap:24px;
  padding:14px 0;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--text)}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-weight:900;font-size:18px;
  box-shadow:0 6px 18px rgba(255,62,127,.4);
}
.nav-links{display:flex;gap:6px;margin-left:12px;flex:1;flex-wrap:wrap}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--muted);
  transition:all var(--tr);
}
.nav-links a:hover{color:var(--text);background:var(--surface)}
.nav-links a.active{
  color:#fff;
  background:linear-gradient(135deg,rgba(255,62,127,.25),rgba(139,92,246,.25));
  border:1px solid rgba(255,62,127,.4);
}
.nav-cta{
  padding:10px 18px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-weight:600;font-size:14px;
  box-shadow:0 6px 18px rgba(255,62,127,.35);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;font-size:22px;padding:6px 10px}

/* Page Banner */
.page-banner{
  position:relative;overflow:hidden;
  padding:80px 0 70px;
  background:
    linear-gradient(120deg,rgba(13,11,18,.85),rgba(13,11,18,.55) 55%,rgba(13,11,18,.9)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 80% 40%,rgba(255,62,127,.25),transparent 60%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;max-width:760px}
.crumbs{
  display:inline-flex;gap:8px;align-items:center;
  font-size:13px;color:var(--muted);
  margin-bottom:18px;
}
.crumbs a:hover{color:var(--primary)}
.crumbs span{opacity:.5}
.banner-inner h1{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.15;margin:0 0 18px;
  font-weight:800;letter-spacing:-.5px;
}
.banner-inner h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-inner p{font-size:17px;color:#d8d2eb;margin:0 0 26px;max-width:640px}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:all var(--tr);cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;box-shadow:0 8px 22px rgba(255,62,127,.35);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,62,127,.5)}
.btn-ghost{
  background:rgba(255,255,255,.06);color:#fff;
  border:1px solid rgba(255,255,255,.15);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.banner-stats{
  display:flex;gap:28px;margin-top:36px;flex-wrap:wrap;
}
.banner-stats div{display:flex;flex-direction:column}
.banner-stats strong{font-size:26px;color:var(--gold);font-weight:800}
.banner-stats span{font-size:13px;color:var(--muted)}

/* Section base */
section{padding:72px 0}
.section-head{max-width:720px;margin:0 auto 46px;text-align:center}
.eyebrow{
  display:inline-block;
  padding:5px 14px;border-radius:999px;
  background:rgba(139,92,246,.15);
  color:#c9b8ff;font-size:12.5px;font-weight:600;letter-spacing:.5px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);
  margin:0 0 14px;font-weight:800;letter-spacing:-.3px;
}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}

/* Features grid */
.features-wrap{background:var(--bg-alt)}
.features{
  display:grid;gap:22px;
  grid-template-columns:repeat(3,1fr);
}
.feature{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:30px 26px;
  transition:all var(--tr);
  position:relative;overflow:hidden;
}
.feature::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform var(--tr);
}
.feature:hover{transform:translateY(-4px);border-color:rgba(255,62,127,.35);box-shadow:var(--shadow)}
.feature:hover::before{transform:scaleX(1)}
.feature-ico{
  width:52px;height:52px;border-radius:14px;
  display:grid;place-items:center;font-size:24px;
  background:linear-gradient(135deg,rgba(255,62,127,.15),rgba(139,92,246,.15));
  color:var(--primary);
  margin-bottom:18px;
}
.feature h3{margin:0 0 10px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.7}

/* Quality specs */
.specs{
  display:grid;gap:0;
  grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.spec{
  padding:32px 22px;text-align:center;
  border-right:1px solid var(--border);
}
.spec:last-child{border-right:none}
.spec-num{
  font-size:34px;font-weight:800;
  background:linear-gradient(120deg,var(--gold),var(--primary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;margin-bottom:8px;
}
.spec-label{font-size:14px;color:var(--muted)}

/* Picks (cards with cover) */
.picks-wrap{background:var(--bg-alt)}
.picks{
  display:grid;gap:22px;
  grid-template-columns:repeat(4,1fr);
}
.pick{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:all var(--tr);
  display:flex;flex-direction:column;
}
.pick:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(255,62,127,.4)}
.pick-cover{position:relative;aspect-ratio:3/4;overflow:hidden;background:#000}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pick:hover .pick-cover img{transform:scale(1.06)}
.pick-badge{
  position:absolute;top:10px;left:10px;
  padding:4px 10px;border-radius:6px;
  background:rgba(0,0,0,.7);backdrop-filter:blur(6px);
  color:var(--gold);font-size:11.5px;font-weight:700;letter-spacing:.5px;
}
.pick-play{
  position:absolute;inset:0;
  display:grid;place-items:center;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.6));
  opacity:0;transition:opacity var(--tr);
}
.pick:hover .pick-play{opacity:1}
.pick-play span{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;color:#fff;font-size:18px;
  box-shadow:0 8px 24px rgba(255,62,127,.5);
}
.pick-info{padding:16px 16px 18px}
.pick-info h4{margin:0 0 8px;font-size:15.5px;font-weight:700}
.pick-meta{display:flex;gap:10px;color:var(--muted);font-size:12.5px;flex-wrap:wrap}
.pick-meta span{display:inline-flex;align-items:center;gap:4px}
.pick-tag{color:var(--primary)}

/* Steps timeline */
.steps{
  display:grid;gap:24px;
  grid-template-columns:repeat(4,1fr);
  position:relative;
}
.step{
  padding:28px 24px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  position:relative;
}
.step-num{
  position:absolute;top:-18px;left:24px;
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-weight:800;font-size:18px;
  display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(139,92,246,.4);
}
.step h4{margin:14px 0 8px;font-size:16.5px}
.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}

/* Compare table */
.compare-wrap{background:var(--bg-alt)}
.compare{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.compare-row{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;
  border-bottom:1px solid var(--border);
}
.compare-row:last-child{border-bottom:none}
.compare-row > div{padding:18px 22px;font-size:14.5px}
.compare-head{
  background:linear-gradient(135deg,rgba(255,62,127,.12),rgba(139,92,246,.12));
}
.compare-head > div{font-weight:700;color:#fff}
.compare-row > div:first-child{color:var(--muted);font-weight:500}
.compare-row .yes{color:#5ee6a5}
.compare-row .no{color:#ff7d7d}
.compare-highlight{background:rgba(255,62,127,.06)}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color var(--tr);
}
.faq-item:hover{border-color:rgba(255,62,127,.35)}
.faq-q{
  width:100%;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q::after{
  content:"+";font-size:22px;color:var(--primary);
  transition:transform var(--tr);
}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  padding:0 22px;color:var(--muted);font-size:14.5px;line-height:1.75;
  transition:max-height .3s ease,padding .3s ease;
}
.faq-item.open .faq-a{max-height:400px;padding:0 22px 20px}

/* CTA */
.cta-wrap{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(13,11,18,.9),rgba(13,11,18,.5)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cta-inner{
  text-align:center;max-width:720px;margin:0 auto;
  position:relative;z-index:2;
}
.cta-inner h2{
  font-size:clamp(26px,3.6vw,40px);
  margin:0 0 14px;font-weight:800;
}
.cta-inner p{color:#d8d2eb;font-size:16px;margin:0 0 28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{
  background:#08070c;
  border-top:1px solid var(--border);
  padding:60px 0 28px;
  color:var(--muted);
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--border);
}
.foot-brand p{margin:14px 0 0;font-size:14px;line-height:1.75;color:var(--muted)}
.foot-col h5{margin:0 0 16px;color:#fff;font-size:15px}
.foot-col a{display:block;padding:6px 0;font-size:14px}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:13px;
}

/* Responsive */
@media (max-width:1024px){
  .features,.picks{grid-template-columns:repeat(2,1fr)}
  .specs{grid-template-columns:repeat(2,1fr)}
  .spec{border-right:none;border-bottom:1px solid var(--border)}
  .spec:nth-child(2){border-right:none}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .nav-links{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--bg-alt);flex-direction:column;padding:14px;
    border-bottom:1px solid var(--border);
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  section{padding:56px 0}
  .page-banner{padding:60px 0 54px}
  .compare-row{grid-template-columns:1.2fr 1fr 1fr}
  .compare-row > div:nth-child(4){display:none}
}
@media (max-width:520px){
  .features,.picks,.steps{grid-template-columns:1fr}
  .specs{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .banner-stats{gap:18px}
  .banner-stats strong{font-size:22px}
}

/* roulang page: category2 */
:root{
  --c-bg:#0d0a14;
  --c-bg-alt:#141021;
  --c-surface:#1b1628;
  --c-surface-2:#241d35;
  --c-border:#2f2743;
  --c-text:#f2ecff;
  --c-muted:#a99cc4;
  --c-primary:#ff3d7f;
  --c-primary-2:#ff7a3d;
  --c-accent:#7c5cff;
  --c-ok:#3ddc97;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.35);
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(255,61,127,.35),0 20px 50px rgba(255,61,127,.25);
  --gap:24px;
  --maxw:1200px;
  --trans:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--trans)}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,h5{margin:0 0 .6em;line-height:1.25;font-weight:700;letter-spacing:.5px}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===== HEADER / NAV ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,10,20,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--c-text)}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;font-size:18px;font-weight:800;
  box-shadow:0 8px 20px rgba(255,61,127,.4);
}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:15px;color:var(--c-muted);
  transition:all var(--trans);
}
.nav-links a:hover{color:var(--c-text);background:var(--c-surface)}
.nav-links a.active{color:var(--c-text);background:var(--c-surface-2);box-shadow:inset 0 0 0 1px var(--c-border)}
.nav-cta{
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;
  box-shadow:0 10px 24px rgba(255,61,127,.35);
  transition:transform var(--trans),box-shadow var(--trans);
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,61,127,.45)}
.menu-toggle{display:none;font-size:24px;padding:6px 10px}

/* ===== HERO ===== */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background:
    linear-gradient(180deg,rgba(13,10,20,.35),rgba(13,10,20,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(255,61,127,.25),transparent 55%),radial-gradient(circle at 80% 70%,rgba(124,92,255,.25),transparent 55%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.crumb{display:flex;gap:8px;color:var(--c-muted);font-size:14px;margin-bottom:20px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb span{color:var(--c-text)}
.hero-tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(255,61,127,.15);color:var(--c-primary);
  font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:20px;
  border:1px solid rgba(255,61,127,.35);
}
.hero h1{
  font-size:clamp(32px,5vw,54px);
  background:linear-gradient(135deg,#fff 20%,#ffb6d3 60%,#ffb37a 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:22px;
}
.hero-lead{font-size:18px;color:#e3daf5;max-width:760px;margin-bottom:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:16px}
.hero-meta .chip{
  padding:12px 18px;border-radius:14px;
  background:rgba(27,22,40,.7);border:1px solid var(--c-border);
  display:flex;align-items:center;gap:10px;font-size:14px;
  backdrop-filter:blur(8px);
}
.chip strong{color:var(--c-primary);font-size:20px;font-weight:800}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--c-ok);box-shadow:0 0 10px var(--c-ok)}

/* ===== SECTIONS ===== */
section{padding:72px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head .eyebrow{
  color:var(--c-primary);font-size:13px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;margin-bottom:12px;display:block;
}
.section-head h2{font-size:clamp(26px,3.6vw,38px)}
.section-head p{color:var(--c-muted);font-size:16px}

/* ===== 时段更新板块 ===== */
.timeline{background:var(--c-bg-alt)}
.time-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.time-card{
  background:linear-gradient(180deg,var(--c-surface),var(--c-surface-2));
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  padding:26px 22px;
  position:relative;overflow:hidden;
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
}
.time-card:hover{transform:translateY(-6px);border-color:var(--c-primary);box-shadow:var(--shadow)}
.time-card .hour{
  font-size:28px;font-weight:800;color:var(--c-primary);
  font-family:"SF Mono",Menlo,monospace;
}
.time-card h4{font-size:17px;margin:8px 0 10px}
.time-card p{color:var(--c-muted);font-size:14px;margin:0}
.time-card .badge{
  position:absolute;top:16px;right:16px;
  font-size:11px;padding:4px 9px;border-radius:6px;
  background:rgba(61,220,151,.15);color:var(--c-ok);
  border:1px solid rgba(61,220,151,.4);
}

/* ===== 当日新片列表 ===== */
.today-list{background:var(--c-bg)}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:38px;
}
.filter-bar button{
  padding:9px 18px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-border);
  color:var(--c-muted);font-size:14px;
  transition:all var(--trans);
}
.filter-bar button:hover{color:var(--c-text);border-color:var(--c-primary)}
.filter-bar button.on{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;border-color:transparent;
  box-shadow:0 8px 20px rgba(255,61,127,.3);
}
.film-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.film-card{
  background:var(--c-surface);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--c-border);
  transition:transform var(--trans),box-shadow var(--trans);
  display:flex;flex-direction:column;
}
.film-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.film-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.film-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.film-card:hover .film-cover img{transform:scale(1.08)}
.film-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(13,10,20,.85));
}
.film-cover .tag{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 11px;border-radius:6px;
  background:rgba(255,61,127,.9);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.5px;
}
.film-cover .time{
  position:absolute;bottom:12px;right:14px;z-index:2;
  padding:4px 9px;border-radius:6px;
  background:rgba(0,0,0,.65);color:#fff;
  font-size:12px;backdrop-filter:blur(4px);
}
.film-body{padding:20px;flex:1;display:flex;flex-direction:column}
.film-body h3{font-size:18px;margin-bottom:10px}
.film-body h3 a:hover{color:var(--c-primary)}
.film-body p{color:var(--c-muted);font-size:14px;flex:1}
.film-meta{
  display:flex;gap:14px;margin-top:14px;padding-top:14px;
  border-top:1px dashed var(--c-border);
  font-size:12.5px;color:var(--c-muted);
}
.film-meta span{display:flex;align-items:center;gap:5px}
.film-meta em{font-style:normal;color:var(--c-text);font-weight:600}

/* ===== 排班表 ===== */
.schedule{background:var(--c-bg-alt)}
.schedule-table{
  background:var(--c-surface);border-radius:var(--radius);
  border:1px solid var(--c-border);overflow:hidden;
}
.schedule-row{
  display:grid;grid-template-columns:110px 1fr 130px 130px;
  padding:20px 24px;align-items:center;
  border-bottom:1px solid var(--c-border);
  transition:background var(--trans);
}
.schedule-row:last-child{border-bottom:0}
.schedule-row:hover{background:var(--c-surface-2)}
.schedule-row.head{
  background:var(--c-bg);color:var(--c-muted);
  font-size:13px;letter-spacing:1px;font-weight:600;
}
.sched-day{font-weight:700;font-size:15px}
.sched-day em{color:var(--c-primary);font-style:normal;display:block;font-size:12px;font-weight:500;margin-top:2px}
.sched-topic{font-size:15px}
.sched-topic small{display:block;color:var(--c-muted);font-size:12.5px;margin-top:2px}
.sched-count{color:var(--c-primary);font-weight:700}
.sched-status .live{color:var(--c-ok);font-weight:600}
.sched-status .plan{color:var(--c-muted)}

/* ===== 卖点 ===== */
.feature{background:var(--c-bg)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feat-card{
  padding:32px 26px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--c-surface),transparent);
  border:1px solid var(--c-border);
  transition:all var(--trans);
}
.feat-card:hover{border-color:var(--c-primary);transform:translateY(-4px)}
.feat-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:grid;place-items:center;font-size:24px;margin-bottom:18px;
  box-shadow:0 10px 24px rgba(255,61,127,.3);
}
.feat-card h4{font-size:19px;margin-bottom:10px}
.feat-card p{color:var(--c-muted);font-size:15px;margin:0}

/* ===== 使用场景 ===== */
.usecase{background:var(--c-bg-alt);position:relative}
.use-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.use-img{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--c-border);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.use-img img{width:100%;height:100%;object-fit:cover}
.use-list{display:flex;flex-direction:column;gap:18px}
.use-item{
  display:flex;gap:16px;padding:20px;
  background:var(--c-surface);border-radius:var(--radius);
  border:1px solid var(--c-border);
  transition:transform var(--trans);
}
.use-item:hover{transform:translateX(6px);border-color:var(--c-primary)}
.use-num{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;
  background:rgba(255,61,127,.15);color:var(--c-primary);
  display:grid;place-items:center;font-weight:800;font-size:18px;
  border:1px solid rgba(255,61,127,.4);
}
.use-item h4{font-size:17px;margin:0 0 6px}
.use-item p{margin:0;color:var(--c-muted);font-size:14.5px}

/* ===== 流程 ===== */
.process{background:var(--c-bg)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.step{
  padding:28px 22px;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  position:relative;
}
.step-n{
  font-size:44px;font-weight:800;line-height:1;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:12px;
}
.step h4{font-size:17px;margin-bottom:8px}
.step p{margin:0;color:var(--c-muted);font-size:14px}

/* ===== FAQ ===== */
.faq{background:var(--c-bg-alt)}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);overflow:hidden;
  transition:border-color var(--trans);
}
.faq-item:hover{border-color:var(--c-primary)}
.faq-item summary{
  padding:20px 24px;font-weight:600;font-size:16px;
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;color:var(--c-primary);
  transition:transform var(--trans);
}
.faq-item[open] summary::after{content:"−"}
.faq-item .a{padding:0 24px 22px;color:var(--c-muted);font-size:15px;line-height:1.75}

/* ===== CTA ===== */
.cta{
  background:
    linear-gradient(135deg,rgba(255,61,127,.25),rgba(124,92,255,.25)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:80px 0;
  position:relative;
}
.cta::before{content:"";position:absolute;inset:0;background:rgba(13,10,20,.55)}
.cta .container{position:relative;z-index:2;text-align:center}
.cta h2{font-size:clamp(28px,4vw,42px);margin-bottom:16px}
.cta p{color:#e3daf5;font-size:17px;max-width:640px;margin:0 auto 30px}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;border-radius:999px;
  font-size:15px;font-weight:600;
  transition:all var(--trans);
}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;box-shadow:0 12px 28px rgba(255,61,127,.4);
}
.btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:0 16px 34px rgba(255,61,127,.5)}
.btn-outline{
  background:rgba(255,255,255,.08);color:#fff;
  border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(6px);
}
.btn-outline:hover{color:#fff;background:rgba(255,255,255,.16);border-color:#fff}

/* ===== FOOTER ===== */
.site-footer{background:#08060e;padding:64px 0 28px;border-top:1px solid var(--c-border)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-brand p{color:var(--c-muted);font-size:14.5px;margin-top:16px;max-width:340px}
.foot-col h5{font-size:15px;margin-bottom:16px;color:var(--c-text)}
.foot-col a{display:block;color:var(--c-muted);font-size:14px;margin-bottom:10px}
.foot-col a:hover{color:var(--c-primary)}
.foot-bottom{
  border-top:1px solid var(--c-border);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:var(--c-muted);font-size:13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .time-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}
  .film-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .use-wrap{grid-template-columns:1fr}
}
@media (max-width:768px){
  .menu-toggle{display:block}
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;
    flex-direction:column;background:var(--c-bg-alt);
    padding:16px;border-bottom:1px solid var(--c-border);gap:4px;
  }
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:12px 14px}
  .nav-cta{display:none}
  .hero{padding:56px 0 48px}
  section{padding:52px 0}
  .schedule-row{grid-template-columns:90px 1fr;row-gap:6px;padding:16px}
  .schedule-row .sched-count,.schedule-row .sched-status{grid-column:2}
  .schedule-row.head .sched-count,.schedule-row.head .sched-status{display:none}
}
@media (max-width:520px){
  .time-grid,.feature-grid,.film-grid,.step-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .hero-meta{flex-direction:column;align-items:stretch}
  .cta-btns{flex-direction:column}
  .btn{justify-content:center}
}

/* roulang page: category3 */
:root{
  --c-bg:#0d0b14;
  --c-bg-2:#141222;
  --c-surface:#1b1830;
  --c-surface-2:#221d3a;
  --c-border:rgba(255,255,255,.08);
  --c-border-strong:rgba(255,255,255,.16);
  --c-text:#f4f2fb;
  --c-text-dim:#a9a4bf;
  --c-text-mute:#7c7791;
  --c-primary:#ff3d7f;
  --c-primary-2:#ff7a3d;
  --c-accent:#7d5cff;
  --c-gold:#ffcf5c;
  --c-success:#3ddc97;
  --grad-primary:linear-gradient(135deg,#ff3d7f 0%,#ff7a3d 100%);
  --grad-accent:linear-gradient(135deg,#7d5cff 0%,#ff3d7f 100%);
  --grad-dark:linear-gradient(180deg,rgba(13,11,20,.3) 0%,rgba(13,11,20,.95) 100%);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:32px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.28);
  --shadow-md:0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 10px 40px rgba(255,61,127,.28);
  --sp-1:.5rem;
  --sp-2:1rem;
  --sp-3:1.5rem;
  --sp-4:2rem;
  --sp-5:3rem;
  --sp-6:4.5rem;
  --font:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(14px);
  background:rgba(13,11,20,.78);
  border-bottom:1px solid var(--c-border);
}
.site-header .nav{
  display:flex;align-items:center;gap:24px;
  padding:16px 24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--c-text)}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-primary);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:18px;
  box-shadow:var(--shadow-glow);
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;
  color:var(--c-text-dim);font-weight:500;
  transition:all .2s ease;
}
.nav-links a:hover{color:var(--c-text);background:rgba(255,255,255,.05)}
.nav-links a.active{
  color:#fff;background:var(--grad-primary);
  box-shadow:0 4px 14px rgba(255,61,127,.35);
}
.nav-cta{
  padding:10px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid var(--c-border-strong);
  color:var(--c-text);
  transition:all .25s ease;
}
.nav-cta:hover{background:var(--grad-primary);border-color:transparent;color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;font-size:22px;padding:8px 12px;border-radius:10px;background:rgba(255,255,255,.06)}

/* ---------- Page Banner ---------- */
.page-banner{
  position:relative;
  padding:100px 0 80px;
  background:
    linear-gradient(120deg,rgba(13,11,20,.85) 0%,rgba(13,11,20,.55) 60%,rgba(125,92,255,.35) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1000px 400px at 15% 20%,rgba(255,61,127,.25),transparent 60%);
  pointer-events:none;
}
.banner-inner{position:relative;max-width:820px}
.crumbs{
  display:flex;gap:8px;align-items:center;
  color:var(--c-text-mute);font-size:13.5px;margin-bottom:18px;
}
.crumbs a{color:var(--c-text-dim)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs span{opacity:.5}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,61,127,.15);border:1px solid rgba(255,61,127,.35);
  color:#ffb6cf;font-size:13px;font-weight:600;margin-bottom:18px;
}
.pill .dot{width:6px;height:6px;background:var(--c-primary);border-radius:50%;box-shadow:0 0 8px var(--c-primary)}
.banner-inner h1{
  font-size:clamp(32px,4.5vw,54px);
  background:linear-gradient(120deg,#fff 0%,#ffb6cf 60%,#ffcf5c 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;
}
.banner-desc{color:var(--c-text-dim);font-size:17px;max-width:640px;margin-bottom:26px}
.banner-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat-chip{
  padding:10px 18px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-border);
  display:flex;flex-direction:column;min-width:120px;
}
.stat-chip .num{font-size:22px;font-weight:800;color:#fff}
.stat-chip .lbl{font-size:12.5px;color:var(--c-text-mute);margin-top:2px}

/* ---------- Sections ---------- */
section{padding:var(--sp-6) 0}
.sec-head{max-width:720px;margin:0 auto var(--sp-4);text-align:center}
.sec-head .kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.18em;
  color:var(--c-primary);font-weight:700;margin-bottom:10px;text-transform:uppercase;
}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:14px}
.sec-head p{color:var(--c-text-dim);font-size:16px}

/* ---------- Ranking Top 3 ---------- */
.podium{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.podium-card{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.podium-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--c-border-strong)}
.podium-card .cover{position:relative;aspect-ratio:4/5;overflow:hidden}
.podium-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.podium-card:hover .cover img{transform:scale(1.06)}
.podium-card .cover::after{
  content:"";position:absolute;inset:0;
  background:var(--grad-dark);
}
.rank-badge{
  position:absolute;top:16px;left:16px;
  padding:6px 14px;border-radius:999px;
  font-weight:800;font-size:14px;color:#0d0b14;
  background:linear-gradient(135deg,#ffcf5c,#ff7a3d);
  z-index:2;
  box-shadow:0 4px 14px rgba(255,207,92,.35);
}
.podium-card:nth-child(2) .rank-badge{background:linear-gradient(135deg,#e8e8e8,#a9a9c0);color:#1a1a1a}
.podium-card:nth-child(3) .rank-badge{background:linear-gradient(135deg,#ff9d5c,#b56b3a);color:#fff}
.podium-info{
  position:absolute;left:0;right:0;bottom:0;padding:20px;z-index:2;
}
.podium-info h3{font-size:22px;margin-bottom:6px}
.podium-info .style{color:#ffb6cf;font-size:13px;font-weight:600;margin-bottom:10px}
.podium-info .metrics{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.85)}
.podium-info .metrics span b{color:#fff;font-weight:700}

/* ---------- Filter bar ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  margin-bottom:var(--sp-4);
}
.filter-bar button{
  padding:8px 18px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-border);
  color:var(--c-text-dim);font-size:14px;font-weight:500;
  transition:all .25s ease;
}
.filter-bar button:hover{color:#fff;border-color:var(--c-border-strong)}
.filter-bar button.on{background:var(--grad-primary);color:#fff;border-color:transparent;box-shadow:0 4px 14px rgba(255,61,127,.3)}

/* ---------- Ranking Grid 4-15 ---------- */
.rank-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.rank-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:all .3s ease;
  position:relative;
}
.rank-card:hover{transform:translateY(-4px);border-color:var(--c-primary);box-shadow:var(--shadow-md)}
.rank-card .num{
  position:absolute;top:10px;left:10px;z-index:2;
  width:34px;height:34px;border-radius:50%;
  background:rgba(13,11,20,.7);backdrop-filter:blur(6px);
  display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:14px;
  border:1px solid var(--c-border-strong);
}
.rank-card .cover{aspect-ratio:3/4;overflow:hidden;position:relative}
.rank-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rank-card:hover .cover img{transform:scale(1.08)}
.rank-card .info{padding:14px 16px 18px}
.rank-card .info h4{font-size:16px;margin-bottom:4px}
.rank-card .info .tag{font-size:12.5px;color:var(--c-text-mute);margin-bottom:10px}
.rank-card .info .row{
  display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--c-text-dim);
}
.rank-card .info .row .up{color:var(--c-success);font-weight:600}
.rank-card .info .row .down{color:#ff6b6b;font-weight:600}

/* ---------- Styles Section ---------- */
.styles-alt{background:var(--c-bg-2)}
.style-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.style-tile{
  padding:26px 22px;
  border-radius:var(--r-md);
  background:var(--c-surface);
  border:1px solid var(--c-border);
  transition:all .3s ease;
  position:relative;
  overflow:hidden;
}
.style-tile::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .35s ease;
}
.style-tile:hover::before{transform:scaleX(1)}
.style-tile:hover{border-color:var(--c-border-strong);transform:translateY(-4px)}
.style-tile .ico{
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,61,127,.14);
  display:grid;place-items:center;font-size:22px;margin-bottom:14px;
}
.style-tile h4{font-size:17px;margin-bottom:8px}
.style-tile p{font-size:14px;color:var(--c-text-dim);margin-bottom:12px}
.style-tile .cnt{font-size:12.5px;color:var(--c-primary);font-weight:600}

/* ---------- Weekly Rising ---------- */
.rising-wrap{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:32px;
  align-items:center;
}
.rising-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:5/4;
  border:1px solid var(--c-border);
}
.rising-visual img{width:100%;height:100%;object-fit:cover}
.rising-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(255,61,127,.3) 100%);
}
.rising-list{display:flex;flex-direction:column;gap:14px}
.rising-item{
  display:flex;align-items:center;gap:16px;
  padding:14px 18px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:all .25s ease;
}
.rising-item:hover{transform:translateX(4px);border-color:var(--c-primary)}
.rising-item .idx{
  width:36px;height:36px;border-radius:10px;
  background:var(--grad-primary);color:#fff;
  display:grid;place-items:center;font-weight:800;flex-shrink:0;
}
.rising-item .body{flex:1;min-width:0}
.rising-item .body h5{font-size:15.5px;margin-bottom:2px}
.rising-item .body span{font-size:12.5px;color:var(--c-text-mute)}
.rising-item .rise{color:var(--c-success);font-weight:700;font-size:14px;white-space:nowrap}

/* ---------- History Tabs ---------- */
.history-alt{background:var(--c-bg-2)}
.tab-bar{
  display:flex;gap:10px;justify-content:center;margin-bottom:var(--sp-4);
  border-bottom:1px solid var(--c-border);padding-bottom:0;
}
.tab-bar button{
  padding:12px 22px;font-size:15px;color:var(--c-text-dim);
  font-weight:600;position:relative;
}
.tab-bar button::after{
  content:"";position:absolute;left:20%;right:20%;bottom:-1px;height:2px;
  background:var(--c-primary);
  transform:scaleX(0);transition:transform .25s ease;
}
.tab-bar button.on{color:#fff}
.tab-bar button.on::after{transform:scaleX(1)}
.tab-body{display:none}
.tab-body.on{display:block}
.history-table{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);overflow:hidden;
}
.history-row{
  display:grid;
  grid-template-columns:60px 1.5fr 1fr 1fr 1fr 1fr;
  padding:14px 22px;align-items:center;
  border-bottom:1px solid var(--c-border);
  font-size:14px;
  transition:background .2s ease;
}
.history-row:last-child{border-bottom:0}
.history-row.head{
  background:rgba(255,255,255,.03);color:var(--c-text-mute);
  font-size:12.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
}
.history-row:not(.head):hover{background:rgba(255,255,255,.03)}
.history-row .r{font-weight:800;color:var(--c-gold)}
.history-row .nm{font-weight:600;color:#fff}
.history-row .st{color:var(--c-text-dim)}
.history-row .pv{color:var(--c-text)}
.history-row .up{color:var(--c-success);font-weight:600}
.history-row .down{color:#ff6b6b;font-weight:600}

/* ---------- How it works ---------- */
.flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.flow-step{
  padding:26px 22px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);
  position:relative;
}
.flow-step .no{
  position:absolute;top:-14px;left:22px;
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-accent);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px;
  box-shadow:0 4px 14px rgba(125,92,255,.35);
}
.flow-step h4{font-size:17px;margin:8px 0 10px}
.flow-step p{font-size:14px;color:var(--c-text-dim)}

/* ---------- FAQ ---------- */
.faq-alt{background:var(--c-bg-2)}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:var(--c-border-strong)}
.faq-item summary{
  list-style:none;
  padding:20px 24px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;color:var(--c-primary);font-weight:400;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 24px 22px;color:var(--c-text-dim);font-size:14.5px;line-height:1.75}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  padding:80px 0;
  background:
    linear-gradient(120deg,rgba(255,61,127,.85) 0%,rgba(125,92,255,.75) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;
  overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 300px at 50% 100%,rgba(255,207,92,.35),transparent 70%);
}
.cta-inner{position:relative;max-width:720px;margin:0 auto;padding:0 24px}
.cta h2{font-size:clamp(28px,3.4vw,40px);color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.9);font-size:16px;margin-bottom:26px}
.cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;
  transition:all .25s ease;
}
.btn-primary{background:#fff;color:#0d0b14}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff}

/* ---------- Footer ---------- */
.site-footer{
  background:#08060f;
  border-top:1px solid var(--c-border);
  padding:70px 0 30px;
  color:var(--c-text-dim);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  margin-bottom:40px;
}
.foot-brand p{margin-top:14px;font-size:14px;color:var(--c-text-mute);line-height:1.75;max-width:340px}
.foot-col h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.foot-col a{display:block;padding:6px 0;color:var(--c-text-dim);font-size:14px;transition:color .2s ease}
.foot-col a:hover{color:var(--c-primary)}
.foot-bottom{
  padding-top:26px;border-top:1px solid var(--c-border);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:13px;color:var(--c-text-mute);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .podium{grid-template-columns:repeat(3,1fr);gap:16px}
  .rank-grid{grid-template-columns:repeat(3,1fr)}
  .style-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .history-row{grid-template-columns:48px 1.4fr 1fr 1fr;font-size:13.5px}
  .history-row .pv-col,.history-row .up-col{display:none}
  .rising-wrap{grid-template-columns:1fr}
}
@media (max-width:768px){
  section{padding:56px 0}
  .site-header .nav{padding:12px 16px;flex-wrap:wrap}
  .nav-links{
    order:3;width:100%;
    max-height:0;overflow:hidden;
    transition:max-height .3s ease;
    flex-direction:column;align-items:stretch;
    margin-left:0;gap:2px;
  }
  .nav-links.open{max-height:520px;padding-top:10px}
  .nav-links a{padding:10px 14px;border-radius:10px}
  .nav-cta{margin-left:auto;font-size:13px;padding:8px 14px}
  .menu-toggle{display:inline-flex}
  .page-banner{padding:70px 0 60px}
  .podium{grid-template-columns:1fr}
  .rank-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .rank-card .info h4{font-size:15px}
  .style-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;text-align:center}
  .tab-bar{overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;-webkit-overflow-scrolling:touch}
  .tab-bar button{white-space:nowrap;padding:10px 16px}
  .history-row{grid-template-columns:44px 1.3fr 1fr;padding:12px 16px}
  .history-row .st-col{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .banner-inner h1{font-size:30px}
  .banner-stats{gap:10px}
  .stat-chip{min-width:calc(50% - 6px);padding:10px 14px}
  .stat-chip .num{font-size:19px}
  .rank-grid{grid-template-columns:1fr 1fr;gap:12px}
  .rank-card .info{padding:12px}
  .style-grid{grid-template-columns:1fr}
  .cta{padding:60px 0}
  .cta h2{font-size:26px}
}

/* roulang page: category5 */
:root{
  --bg:#0b0d12;
  --surface:#12151d;
  --surface-2:#181c26;
  --line:#242938;
  --text:#f2f4f8;
  --muted:#9aa3b7;
  --primary:#00d1a7;
  --primary-2:#00a382;
  --accent:#ff5c8a;
  --accent-2:#ffb648;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --shadow-sm:0 4px 14px rgba(0,0,0,.25);
  --gap:24px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4,h5{margin:0 0 .6em;line-height:1.3;font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,13,18,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header .nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#0b0d12;font-weight:900;font-size:18px;
  box-shadow:0 6px 18px rgba(0,209,167,.35);
}
.nav-links{display:flex;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--muted);
  transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:var(--surface-2)}
.nav-links a.active{color:#0b0d12;background:var(--primary);font-weight:600}
.nav-cta{
  padding:10px 18px;border-radius:999px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#231a00;font-weight:700;font-size:14px;
  box-shadow:0 6px 20px rgba(255,92,138,.3);
}
.nav-cta:hover{transform:translateY(-2px);color:#231a00}
.menu-toggle{display:none;font-size:24px;color:var(--text)}

/* Hero - vertical stack layout with phone strip */
.hero{
  position:relative;
  padding:70px 0 60px;
  background:
    linear-gradient(180deg,rgba(11,13,18,.4) 0%,rgba(11,13,18,.9) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 20%,rgba(0,209,167,.18),transparent 55%),
             radial-gradient(circle at 80% 70%,rgba(255,92,138,.16),transparent 55%);
  pointer-events:none;
}
.hero-inner{position:relative;text-align:center;max-width:820px;margin:0 auto}
.hero .tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(0,209,167,.14);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:22px;
  border:1px solid rgba(0,209,167,.3);
}
.hero h1{
  font-size:clamp(30px,5vw,52px);
  background:linear-gradient(135deg,#fff 20%,var(--primary) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .sub{color:var(--muted);font-size:17px;max-width:640px;margin:0 auto 30px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{
  padding:14px 28px;border-radius:12px;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;
  transition:all .2s ease;
}
.btn-primary{background:var(--primary);color:#0b0d12;box-shadow:0 8px 22px rgba(0,209,167,.35)}
.btn-primary:hover{background:var(--primary-2);transform:translateY(-2px);color:#0b0d12}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}

.phone-strip{
  margin-top:56px;display:flex;gap:16px;justify-content:center;
  flex-wrap:wrap;position:relative;z-index:1;
}
.phone-chip{
  padding:14px 20px;border-radius:14px;
  background:rgba(24,28,38,.7);border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
  min-width:180px;backdrop-filter:blur(8px);
}
.phone-chip .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(0,209,167,.15);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(0,209,167,.15)}
  50%{box-shadow:0 0 0 8px rgba(0,209,167,.05)}
}
.phone-chip strong{display:block;font-size:14px}
.phone-chip span{color:var(--muted);font-size:12px}

/* Sections common */
section{padding:70px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 44px}
.section-head .kicker{
  color:var(--primary);font-size:13px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(24px,3.4vw,36px)}
.section-head p{color:var(--muted)}

/* Features grid */
.features{background:var(--surface)}
.feat-grid{
  display:grid;gap:var(--gap);
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.feat-card{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 24px;
  transition:all .25s ease;position:relative;overflow:hidden;
}
.feat-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.feat-card:hover{transform:translateY(-4px);border-color:rgba(0,209,167,.4);box-shadow:var(--shadow-sm)}
.feat-card:hover::after{transform:scaleX(1)}
.feat-ico{
  width:50px;height:50px;border-radius:12px;
  background:linear-gradient(135deg,rgba(0,209,167,.15),rgba(255,92,138,.12));
  display:grid;place-items:center;font-size:22px;margin-bottom:16px;
}
.feat-card h3{font-size:17px}
.feat-card p{color:var(--muted);font-size:14px;margin:0}

/* Scenes - image + text alternating */
.scenes{background:var(--bg)}
.scene-item{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;
  align-items:center;margin-bottom:60px;
}
.scene-item:last-child{margin-bottom:0}
.scene-item:nth-child(even) .scene-img{order:2}
.scene-img{
  border-radius:var(--radius);overflow:hidden;
  position:relative;box-shadow:var(--shadow);
}
.scene-img img{width:100%;height:280px;object-fit:cover;border-radius:0}
.scene-img::before{
  content:attr(data-badge);position:absolute;top:16px;left:16px;
  padding:6px 12px;border-radius:999px;
  background:rgba(11,13,18,.75);color:var(--primary);
  font-size:12px;font-weight:600;backdrop-filter:blur(8px);z-index:2;
}
.scene-txt h3{font-size:22px;margin-bottom:14px}
.scene-txt p{color:var(--muted);margin-bottom:16px}
.scene-txt ul li{
  padding:8px 0 8px 26px;position:relative;color:var(--muted);font-size:14px;
}
.scene-txt ul li::before{
  content:"◆";position:absolute;left:0;top:8px;
  color:var(--primary);font-size:12px;
}

/* Flow steps */
.flow{
  background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%);
}
.flow-grid{
  display:grid;gap:20px;
  grid-template-columns:repeat(4,1fr);
  counter-reset:flow;
}
.flow-step{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 22px;position:relative;
  counter-increment:flow;
}
.flow-step::before{
  content:"0" counter(flow);
  position:absolute;top:-14px;left:22px;
  background:var(--primary);color:#0b0d12;
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;font-weight:800;font-size:14px;
}
.flow-step h4{margin-top:14px;font-size:16px}
.flow-step p{color:var(--muted);font-size:13.5px;margin:0}

/* Speed dashboard */
.speed{background:var(--surface)}
.speed-wrap{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.speed-left h2{font-size:clamp(24px,3.2vw,34px)}
.speed-left p{color:var(--muted);margin-bottom:24px}
.speed-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:20px;
}
.stat .num{
  font-size:30px;font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat .lbl{color:var(--muted);font-size:13px;margin-top:4px}
.speed-right{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;
}
.speed-right h4{font-size:15px;color:var(--muted);font-weight:500;margin-bottom:18px}
.bar-row{margin-bottom:16px}
.bar-row:last-child{margin-bottom:0}
.bar-lbl{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.bar-lbl span:last-child{color:var(--primary);font-weight:600}
.bar{height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.bar>i{
  display:block;height:100%;border-radius:99px;
  background:linear-gradient(90deg,var(--primary),var(--accent-2));
}

/* Device compat */
.devices{background:var(--bg)}
.dev-grid{
  display:grid;gap:var(--gap);
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}
.dev-card{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;text-align:center;
  transition:all .25s ease;
}
.dev-card:hover{border-color:var(--primary);transform:translateY(-3px)}
.dev-card .ic{
  font-size:34px;margin-bottom:12px;
  display:block;
}
.dev-card h4{font-size:16px;margin-bottom:8px}
.dev-card p{color:var(--muted);font-size:13px;margin:0}
.dev-card .tag{
  display:inline-block;margin-top:12px;padding:4px 10px;
  border-radius:999px;background:rgba(0,209,167,.12);
  color:var(--primary);font-size:12px;
}

/* FAQ */
.faq{background:var(--surface)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(0,209,167,.35)}
.faq-item summary{
  padding:18px 22px;cursor:pointer;font-weight:600;font-size:15px;
  display:flex;justify-content:space-between;align-items:center;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--primary);font-size:22px;font-weight:400;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .a{padding:0 22px 20px;color:var(--muted);font-size:14.5px}

/* CTA */
.cta{
  background:
    linear-gradient(135deg,rgba(0,209,167,.15),rgba(255,92,138,.12)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:80px 0;text-align:center;position:relative;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:rgba(11,13,18,.72);
}
.cta .container{position:relative;z-index:1}
.cta h2{font-size:clamp(26px,3.6vw,38px);margin-bottom:14px}
.cta p{color:var(--muted);max-width:560px;margin:0 auto 26px}
.cta .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{
  background:#080a0f;border-top:1px solid var(--line);
  padding:60px 0 30px;
}
.foot-grid{
  display:grid;gap:36px;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  margin-bottom:40px;
}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px}
.foot-col h5{font-size:14px;color:var(--text);margin-bottom:14px}
.foot-col a{
  display:block;color:var(--muted);font-size:13.5px;
  padding:5px 0;transition:color .2s ease;
}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:var(--muted);font-size:13px;
}

/* Responsive */
@media (max-width:1024px){
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .speed-wrap{grid-template-columns:1fr}
}
@media (max-width:768px){
  .site-header .nav{padding:12px 18px}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;background:var(--surface);
    padding:14px;gap:4px;border-bottom:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  section{padding:50px 0}
  .hero{padding:50px 0 40px}
  .scene-item{grid-template-columns:1fr;gap:20px}
  .scene-item:nth-child(even) .scene-img{order:0}
  .scene-img img{height:220px}
}
@media (max-width:520px){
  .flow-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .speed-stats{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  .phone-chip{min-width:100%}
}

/* roulang page: category4 */
:root{
  --bg:#0e0b18;
  --bg-2:#151022;
  --surface:#1c1630;
  --surface-2:#241c3d;
  --line:rgba(255,255,255,.08);
  --text:#f5f1ff;
  --muted:#b3a8cc;
  --primary:#ff3d7f;
  --primary-2:#7a3dff;
  --accent:#ffd166;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --shadow-sm:0 8px 24px rgba(0,0,0,.25);
  --grad:linear-gradient(135deg,#ff3d7f 0%,#7a3dff 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,61,127,.15),rgba(122,61,255,.15));
  --space:24px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--primary)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font:inherit}
.container{width:min(1200px,92%);margin:0 auto}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(14,11,24,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.logo-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:900;box-shadow:var(--shadow-sm)}
.nav-links{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.nav-links a{padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--text);background:var(--grad-soft);box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;padding:11px 18px;border-radius:999px;background:var(--grad);color:#fff;font-weight:700;font-size:14px;box-shadow:var(--shadow-sm)}
.nav-cta:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;font-size:22px;padding:6px 10px;border-radius:8px;background:rgba(255,255,255,.06)}

/* Page Hero */
.page-hero{position:relative;padding:80px 0 70px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;opacity:.28;z-index:0}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(80% 60% at 70% 20%,rgba(255,61,127,.35),transparent 60%),radial-gradient(60% 50% at 20% 80%,rgba(122,61,255,.4),transparent 65%);z-index:0}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.crumb a:hover{color:var(--primary)}
.crumb span{opacity:.5}
.hero-title{font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.15;margin-bottom:20px;max-width:820px}
.hero-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:13px;color:var(--text)}
.chip.hot{background:var(--grad);border-color:transparent;color:#fff;font-weight:600}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:760px}
.stat{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.stat b{display:block;font-size:26px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--muted);margin-top:4px;display:block}

/* Section basics */
section{padding:70px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.25}
.section-head p{color:var(--muted);max-width:560px;margin-top:8px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2px;color:var(--primary);text-transform:uppercase;margin-bottom:10px}

/* Theme grid */
.themes{background:var(--bg-2)}
.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.theme-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);border:1px solid var(--line);transition:transform .3s ease,box-shadow .3s ease}
.theme-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.theme-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.theme-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.theme-card:hover .theme-cover img{transform:scale(1.05)}
.theme-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(14,11,24,.85) 100%)}
.theme-badge{position:absolute;top:14px;left:14px;padding:5px 12px;border-radius:999px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;z-index:2;letter-spacing:.5px}
.theme-count{position:absolute;top:14px;right:14px;padding:5px 12px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;z-index:2;backdrop-filter:blur(6px)}
.theme-body{padding:22px}
.theme-body h3{font-size:19px;font-weight:700;margin-bottom:10px}
.theme-body p{color:var(--muted);font-size:14px;line-height:1.7;margin-bottom:16px}
.theme-meta{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid var(--line)}
.meta-tags{display:flex;gap:6px;flex-wrap:wrap}
.meta-tag{font-size:11px;padding:3px 8px;border-radius:6px;background:rgba(255,255,255,.05);color:var(--muted)}
.enter{font-size:13px;color:var(--primary);font-weight:600}
.enter:hover{color:var(--accent)}

/* Highlight rail */
.highlight{background:var(--bg)}
.rail{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:center}
.rail-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.rail-media img{aspect-ratio:4/3;object-fit:cover;width:100%}
.rail-media .flag{position:absolute;top:20px;left:20px;padding:8px 16px;background:var(--grad);border-radius:10px;font-size:13px;font-weight:700}
.rail-list{display:flex;flex-direction:column;gap:14px}
.rail-item{display:flex;gap:16px;padding:18px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);transition:border-color .2s ease}
.rail-item:hover{border-color:var(--primary)}
.rail-idx{flex-shrink:0;width:42px;height:42px;border-radius:12px;background:var(--grad-soft);color:var(--primary);display:grid;place-items:center;font-weight:800;font-size:16px;border:1px solid rgba(255,61,127,.3)}
.rail-item h4{font-size:16px;font-weight:700;margin-bottom:6px}
.rail-item p{font-size:13px;color:var(--muted)}

/* Scenes */
.scenes{background:var(--bg-2)}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:all .3s ease;position:relative;overflow:hidden}
.scene:hover{transform:translateY(-3px);border-color:rgba(255,61,127,.4)}
.scene-ico{width:50px;height:50px;border-radius:12px;background:var(--grad-soft);display:grid;place-items:center;font-size:22px;margin-bottom:16px;border:1px solid rgba(255,255,255,.08)}
.scene h4{font-size:16px;font-weight:700;margin-bottom:8px}
.scene p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* Flow */
.flow{background:var(--bg)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{position:relative;padding:28px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.step-num{position:absolute;top:-16px;left:24px;width:38px;height:38px;border-radius:10px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:var(--shadow-sm)}
.step h4{font-size:17px;font-weight:700;margin:16px 0 10px}
.step p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* FAQ */
.faq{background:var(--bg-2)}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-q{width:100%;text-align:left;padding:20px 24px;font-size:16px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q::after{content:"+";font-size:22px;color:var(--primary);font-weight:400;transition:transform .3s ease}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--muted);font-size:14.5px;line-height:1.8}
.faq-a > div{padding:0 24px 22px}
.faq-item.open .faq-a{max-height:400px}

/* CTA */
.cta{position:relative;padding:80px 0;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;opacity:.2}
.cta::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,61,127,.35),rgba(122,61,255,.4))}
.cta .container{position:relative;z-index:1;text-align:center}
.cta h2{font-size:clamp(28px,3.4vw,40px);font-weight:800;margin-bottom:18px}
.cta p{color:rgba(255,255,255,.85);max-width:640px;margin:0 auto 32px;font-size:16px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;transition:all .25s ease}
.btn-primary{background:#fff;color:#1a1130}
.btn-primary:hover{color:#1a1130;transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.3)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff}

/* Footer */
.site-footer{background:#08060f;padding:60px 0 24px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px;line-height:1.8;max-width:340px}
.foot-col h5{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);letter-spacing:.5px}
.foot-col a{display:block;color:var(--muted);font-size:13.5px;margin-bottom:10px}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px}

/* Responsive */
@media (max-width:1024px){
  .theme-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .rail{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .menu-toggle{display:inline-flex}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:var(--bg-2);flex-direction:column;padding:16px;border-bottom:1px solid var(--line)}
  .nav-links.show{display:flex}
  .nav-links a{width:100%}
  .nav-cta{display:none}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  section{padding:54px 0}
  .page-hero{padding:56px 0 48px}
}
@media (max-width:520px){
  .theme-grid,.scene-grid,.flow-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;text-align:center}
  .hero-title{font-size:30px}
  .section-head{flex-direction:column;align-items:flex-start}
}