/* roulang page: index */
:root{
  --primary:#FF6A2B;
  --primary-soft:rgba(255,106,43,.14);
  --accent:#34E0C8;
  --accent-soft:rgba(52,224,200,.12);
  --gold:#FFC24B;
  --danger:#FF4D5E;
  --bg:#0B0C10;
  --bg-alt:#111318;
  --card:#171A22;
  --line:#262A36;
  --hair:rgba(255,255,255,.08);
  --text:#F5F7FA;
  --text-2:#A9B1C1;
  --text-3:#6E7686;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55),0 0 0 1px var(--primary);
  --ease:180ms ease-out;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 22px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,12,16,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--hair);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary),#ff9a5c);
  color:#1a0d05;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(255,106,43,.32);
}
.logo-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:9px 13px;border-radius:var(--r-btn);
  font-size:15px;color:var(--text-2);transition:color var(--ease),background var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--primary);background:var(--primary-soft)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:var(--r-btn);font-size:15px;color:var(--text-2);
  border:1px solid var(--line);transition:all var(--ease);min-height:40px;
}
.mega-trigger:hover{color:var(--text);border-color:var(--primary);background:var(--primary-soft)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:660px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:22px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;margin-bottom:12px}
.mega-list li+li{margin-top:2px}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);transition:all var(--ease);
}
.mega-list a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.mega-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex-shrink:0}
.mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.mega-card{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--bg-alt);
  transition:border-color var(--ease),transform var(--ease);
}
.mega-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-card span{display:block;padding:8px 10px;font-size:13.5px;color:var(--text-2)}
.mega-news li a{display:flex;gap:10px;padding:7px 0;font-size:13.5px;color:var(--text-3);transition:color var(--ease)}
.mega-news li a:hover{color:var(--accent)}
.mega-news li+li{border-top:1px solid var(--hair)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:all var(--ease);min-height:44px;border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#170a03;box-shadow:0 8px 22px rgba(255,106,43,.3)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.nav-toggle-check{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.mobile-panel{display:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;min-height:540px;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,12,16,.96) 0%,rgba(11,12,16,.86) 42%,rgba(11,12,16,.55) 100%);
}
.hero-mask::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;
}
.hero-inner{position:relative;z-index:2;padding-top:74px;padding-bottom:74px;max-width:820px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;
  color:var(--accent);background:var(--accent-soft);border:1px solid rgba(52,224,200,.28);
  margin-bottom:20px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-title{
  font-size:clamp(30px,4.6vw,54px);line-height:1.25;font-weight:800;letter-spacing:-.4px;
  margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:clamp(15px,1.4vw,18px);color:var(--text-2);max-width:640px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px}
.hero-meta li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.hero-meta li::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(255,194,75,.14);
}

/* ============ Sections ============ */
.section{padding:76px 0}
.section.alt{background:var(--bg-alt)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:750;letter-spacing:-.3px}
.section-head .lead{font-size:14.5px;color:var(--text-3);margin-top:8px;max-width:620px}
.text-link{font-size:14.5px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;transition:gap var(--ease),color var(--ease)}
.text-link:hover{gap:10px;color:#5cf0dc}

/* ============ Slider ============ */
.slider-wrap{position:relative}
.slider-track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.slider-track::-webkit-scrollbar{display:none}
.slider-card{
  flex:0 0 224px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);transition:all var(--ease);
}
.slider-card:hover{transform:translateY(-4px);border-color:var(--primary)}
.slider-card .poster{position:relative;aspect-ratio:3/4;overflow:hidden}
.slider-card .poster img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out}
.slider-card:hover .poster img{transform:scale(1.05)}
.slider-card .corner{
  position:absolute;top:10px;right:10px;padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;background:rgba(11,12,16,.78);color:var(--gold);border:1px solid rgba(255,194,75,.35);
}
.slider-card .body{padding:13px 14px 15px}
.slider-card h3{font-size:15px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slider-card p{font-size:13px;color:var(--text-3);margin-top:5px;line-height:1.7}
.slider-nav{
  position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:rgba(17,19,24,.92);color:var(--text-2);
  display:flex;align-items:center;justify-content:center;z-index:5;transition:all var(--ease);
}
.slider-nav:hover{border-color:var(--primary);color:var(--primary);background:rgba(23,26,34,.98)}
.slider-prev{left:-10px}
.slider-next{right:-10px}
.slider-wrap::before,.slider-wrap::after{
  content:"";position:absolute;top:0;bottom:18px;width:52px;z-index:4;pointer-events:none;
}
.slider-wrap::before{left:-22px;background:linear-gradient(90deg,var(--bg),transparent)}
.slider-wrap::after{right:-22px;background:linear-gradient(270deg,var(--bg),transparent)}
.section.alt .slider-wrap::before{background:linear-gradient(90deg,var(--bg-alt),transparent)}
.section.alt .slider-wrap::after{background:linear-gradient(270deg,var(--bg-alt),transparent)}

/* ============ Card grid ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);transition:all var(--ease);display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.feature-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out}
.feature-card:hover .cover img{transform:scale(1.04)}
.badge{
  position:absolute;top:10px;left:10px;padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;background:var(--primary);color:#190903;font-weight:600;
}
.cover .rating{
  position:absolute;right:10px;bottom:10px;padding:3px 10px;border-radius:var(--r-pill);
  font-size:12.5px;background:rgba(11,12,16,.8);color:var(--gold);border:1px solid rgba(255,194,75,.3);
}
.feature-card .body{padding:16px 17px 18px;display:flex;flex-direction:column;flex:1}
.feature-card h3{font-size:17px;font-weight:680;line-height:1.5;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-card .foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--hair);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.feature-card .foot .arrow{color:var(--primary);transition:transform var(--ease)}
.feature-card:hover .foot .arrow{transform:translateX(3px)}

/* ============ Playlist sections ============ */
.playlist-block{
  display:grid;grid-template-columns:200px 1fr;gap:36px;padding:44px 0;
  border-top:1px solid var(--hair);
}
.playlist-block:first-of-type{border-top:0;padding-top:0}
.playlist-label .num{
  font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:800;
  color:rgba(255,255,255,.14);letter-spacing:1px;line-height:1;
}
.playlist-label h3{font-size:19px;font-weight:700;margin-top:12px}
.playlist-label p{font-size:13.5px;color:var(--text-3);margin-top:8px;line-height:1.8}
.playlist-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mini-card{
  display:flex;gap:14px;padding:14px;background:var(--card);border:1px solid var(--line);
  border-radius:14px;transition:all var(--ease);
}
.mini-card:hover{border-color:var(--accent);background:#1b1f29;transform:translateY(-2px)}
.mini-card img{width:74px;height:74px;border-radius:10px;object-fit:cover;flex-shrink:0}
.mini-card h4{font-size:15px;font-weight:650;margin-bottom:5px}
.mini-card p{font-size:13px;color:var(--text-3);line-height:1.7}

/* ============ News list (CMS) ============ */
.news-list{border-top:1px solid var(--hair)}
.news-row{
  display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
  padding:22px 18px 22px 16px;border-bottom:1px solid var(--hair);
  border-left:3px solid transparent;transition:all var(--ease);
}
.news-row:hover{background:rgba(255,255,255,.035);border-left-color:var(--primary)}
.news-date{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:8px 4px;border-radius:12px;background:var(--bg-alt);border:1px solid var(--line);
}
.nd-day{font-family:Inter,system-ui,sans-serif;font-size:20px;font-weight:750;color:var(--primary);line-height:1.2}
.nd-mon{font-size:12px;color:var(--text-3);margin-top:2px}
.news-main h3{font-size:17px;font-weight:650;line-height:1.55;transition:color var(--ease)}
.news-row:hover .news-main h3{color:var(--primary)}
.news-main p{
  font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{display:flex;align-items:center;gap:12px}
.cat-chip{
  padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;
  color:var(--accent);background:var(--accent-soft);border:1px solid rgba(52,224,200,.25);white-space:nowrap;
}
.news-side .go{color:var(--text-3);transition:transform var(--ease),color var(--ease)}
.news-row:hover .news-side .go{color:var(--accent);transform:translateX(3px)}
.empty-state{
  padding:56px 20px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--card);
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:var(--primary-soft);border:1px solid rgba(255,106,43,.3);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;
}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;
  overflow:hidden;transition:border-color var(--ease);
}
.faq-item[open]{border-color:rgba(255,106,43,.5)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16.5px;font-weight:620;
  display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:"";width:9px;height:9px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform var(--ease);flex-shrink:0;margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary)}
.faq-body{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.9;background:rgba(255,255,255,.015)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid var(--line);background:linear-gradient(120deg,#141720 0%,#1c1512 100%);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.28),transparent 70%);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px}
.cta-band h2{font-size:clamp(20px,2.3vw,28px);font-weight:750;line-height:1.35;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.cta-note{font-size:13px;color:var(--text-3)}

/* ============ Footer ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--hair);padding:60px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:16px;line-height:1.9;max-width:330px}
.footer-col h4{font-size:14px;color:var(--text);font-weight:650;margin-bottom:16px;letter-spacing:.4px}
.footer-col li+li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--text-3);transition:color var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--hair);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);font-size:13.5px;color:var(--text-2);transition:all var(--ease);
}
.to-top:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}

/* ============ Responsive ============ */
@media (max-width:1180px){
  .mega-panel{width:600px}
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .playlist-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .nav-toggle{display:flex}
  .mobile-panel{
    display:block;max-height:0;overflow:hidden;transition:max-height 260ms ease-out;
    border-top:1px solid transparent;
  }
  .nav-toggle-check:checked ~ .mobile-panel{max-height:520px;border-top-color:var(--hair)}
  .mobile-panel .inner{padding:14px 0 22px;display:flex;flex-direction:column;gap:4px}
  .mobile-panel a{
    padding:13px 14px;border-radius:12px;font-size:15.5px;color:var(--text-2);
    border:1px solid transparent;transition:all var(--ease);
  }
  .mobile-panel a:hover,.mobile-panel a.active{color:var(--primary);background:var(--primary-soft);border-color:rgba(255,106,43,.28)}
  .playlist-block{grid-template-columns:1fr;gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .slider-nav{display:none}
}
@media (max-width:768px){
  body{font-size:16px}
  .header-inner{height:66px;gap:14px}
  .logo-text{font-size:15px}
  .header-actions{gap:8px}
  .header-actions .btn-primary{display:none}
  .hero{min-height:auto}
  .hero-inner{padding-top:52px;padding-bottom:56px}
  .section{padding:52px 0}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .news-row{grid-template-columns:70px 1fr;gap:16px}
  .news-side{grid-column:2;justify-content:flex-start}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-actions{align-items:flex-start;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .card-grid{grid-template-columns:1fr}
  .playlist-grid{grid-template-columns:1fr}
  .hero-meta{gap:14px;flex-direction:column;align-items:flex-start}
  .hero-cta .btn{width:100%}
  .slider-card{flex:0 0 190px}
  .news-row{padding:18px 10px 18px 12px}
  .faq-item summary{font-size:15.5px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --primary:#FF6A2B;
  --primary-dark:#E4551A;
  --accent:#34E0C8;
  --gold:#FFC24B;
  --danger:#FF4D5E;
  --bg:#0B0C10;
  --bg-alt:#111318;
  --card:#171A22;
  --line:#262A36;
  --divider:rgba(255,255,255,.08);
  --text:#F5F7FA;
  --text-2:#A9B1C1;
  --text-3:#6E7686;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --container:1240px;
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 420px at 12% -6%, rgba(255,106,43,.10), transparent 70%),
    radial-gradient(760px 380px at 92% 4%, rgba(52,224,200,.07), transparent 72%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,106,43,.35)}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,12,16,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--divider);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--primary),#FF9147);
  color:#0B0C10;font-weight:800;font-size:18px;
  box-shadow:0 6px 18px rgba(255,106,43,.30);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:8px;font-size:15px;color:var(--text-2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--primary);background:rgba(255,106,43,.10)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:8px;font-size:15px;color:var(--text-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.mega-trigger:hover{border-color:var(--primary);color:var(--text)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:640px;
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow);padding:22px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:13px;letter-spacing:1px;color:var(--text-3);margin-bottom:12px}
.mega-list li{margin-bottom:6px}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;
  font-size:15px;color:var(--text-2);transition:background var(--ease),color var(--ease);
}
.mega-list a:hover{background:rgba(52,224,200,.08);color:var(--accent)}
.mega-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.mega-card{
  display:block;padding:14px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-alt);transition:border-color var(--ease),transform var(--ease);
}
.mega-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.mega-card strong{display:block;font-size:15px;margin-bottom:4px}
.mega-card span{font-size:13px;color:var(--text-3)}
.mega-news li{border-top:1px solid var(--divider);padding:10px 0}
.mega-news a{font-size:14px;color:var(--text-2);display:block;transition:color var(--ease)}
.mega-news a:hover{color:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  font-size:18px;color:var(--text-2);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--primary);color:#140803;box-shadow:0 6px 20px rgba(255,106,43,.28)}
.btn-primary:hover{background:#FF7F48;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--divider);
  background-image:linear-gradient(90deg,rgba(11,12,16,.96) 0%,rgba(11,12,16,.82) 48%,rgba(11,12,16,.62) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background:linear-gradient(180deg,transparent,rgba(11,12,16,.85));pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 56px;max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--primary)}
.hero-title{font-size:clamp(30px,4.2vw,48px);line-height:1.2;margin-bottom:16px}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:17px;color:var(--text-2);max-width:660px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;margin-top:-34px;position:relative;z-index:5;box-shadow:var(--shadow);
}
.stat-cell{text-align:left;padding-right:12px}
.stat-cell + .stat-cell{border-left:1px solid var(--divider);padding-left:20px}
.stat-num{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-3);margin-left:4px}
.stat-label{font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,32px)}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.section-index{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);
  letter-spacing:2px;margin-bottom:12px;
}
.section-index::before{content:"";width:26px;height:1px;background:var(--primary)}

/* ---------- two column layout ---------- */
.layout-split{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}

/* ---------- left image right text list ---------- */
.lr-list{display:flex;flex-direction:column;gap:20px}
.lr-item{
  display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.lr-item:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,106,43,.35),var(--shadow)}
.lr-media{
  position:relative;aspect-ratio:16/9;border-radius:var(--radius-img);overflow:hidden;
  background:#0f1218;
}
.lr-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.lr-item:hover .lr-media img{transform:scale(1.04)}
.lr-badge{
  position:absolute;left:10px;top:10px;z-index:2;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(11,12,16,.78);color:var(--gold);border:1px solid rgba(255,194,75,.4);
}
.lr-body{display:flex;flex-direction:column;justify-content:center;min-width:0}
.lr-body h3{font-size:19px;margin-bottom:10px}
.lr-body p{font-size:15px;color:var(--text-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lr-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;color:var(--accent);border:1px solid rgba(52,224,200,.35);
  background:rgba(52,224,200,.08);
}
.lr-link{
  margin-left:auto;font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;transition:gap var(--ease)
}
.lr-link:hover{gap:10px}

/* ---------- aside ---------- */
.aside-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary)}
.side-links li + li{border-top:1px solid var(--divider)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;font-size:15px;color:var(--text-2);transition:color var(--ease),padding-left var(--ease);
}
.side-links a:hover{color:var(--accent);padding-left:4px}
.side-links a span{font-size:12px;color:var(--text-3)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{
  padding:6px 12px;border-radius:999px;font-size:13px;color:var(--text-2);
  border:1px solid var(--line);transition:all var(--ease);
}
.tag-cloud a:hover{border-color:var(--primary);color:var(--primary);background:rgba(255,106,43,.08)}
.side-note{
  background:linear-gradient(160deg,rgba(255,106,43,.14),rgba(23,26,34,.9));
  border:1px solid rgba(255,106,43,.28);border-radius:var(--radius-card);padding:22px;
}
.side-note h3{font-size:16px;margin-bottom:10px}
.side-note p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:16px}

/* ---------- faq ---------- */
.faq-list{max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--card);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--ease)
}
.faq-item:hover{border-color:#333846}
.faq-item[open]{border-color:rgba(255,106,43,.45);background:#191D26}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:none;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);transition:transform var(--ease)
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.9;border-top:1px solid var(--divider);padding-top:16px;margin:0 0 0}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--bg-alt);
  border-top:1px solid var(--divider);border-bottom:1px solid var(--divider);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;
  background:linear-gradient(135deg,rgba(255,106,43,.22),rgba(52,224,200,.10));
  transform:rotate(24deg);border-radius:40px;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:26px;padding:52px 0}
.cta-text{flex:1 1 420px;min-width:0}
.cta-text h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px}
.cta-text p{font-size:15px;color:var(--text-2)}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.cta-hint{font-size:13px;color:var(--text-3)}

/* ---------- footer ---------- */
.site-footer{background:#0A0B0F;border-top:1px solid var(--divider);padding:64px 0 0;position:relative;z-index:1}
.site-footer .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--ease),padding-left var(--ease)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--divider);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.to-top{color:var(--text-2);transition:color var(--ease)}
.to-top:hover{color:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .layout-split{grid-template-columns:minmax(0,1fr);gap:28px}
  .aside-sticky{position:static}
  .mega-panel{width:560px}
}
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-inner{flex-wrap:wrap;min-height:68px;gap:12px}
  .main-nav{
    order:3;width:100%;flex-direction:column;align-items:stretch;gap:2px;
    padding:10px 0 16px;display:none;border-top:1px solid var(--divider);
  }
  .main-nav.open{display:flex}
  .nav-link{height:44px;font-size:15px}
  .nav-link.active::after{display:none}
  .header-actions .btn-sm{display:none}
  .mega-panel{position:fixed;left:16px;right:16px;width:auto;top:76px;grid-template-columns:1fr}
  .mega-cards{grid-template-columns:1fr 1fr}
  .section{padding:56px 0}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:-24px}
  .stat-cell:nth-child(3){border-left:none;padding-left:0}
  .stat-cell:nth-child(4){border-left:1px solid var(--divider);padding-left:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .wrap{padding:0 18px}
  .site-footer .container{padding:0 18px}
  .hero-inner{padding:44px 0 40px}
  .lr-item{grid-template-columns:1fr;gap:16px}
  .lr-media{aspect-ratio:16/9}
  .cta-inner{padding:40px 0;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .stat-bar{grid-template-columns:1fr;padding:20px}
  .stat-cell + .stat-cell{border-left:none;padding-left:0;border-top:1px solid var(--divider);padding-top:14px}
  .stat-cell:nth-child(4){border-left:none;padding-left:0}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:14px 18px 18px}
}

/* roulang page: article */
:root{
  --brand:#FF6A2B;
  --brand-soft:rgba(255,106,43,.14);
  --brand-line:rgba(255,106,43,.42);
  --accent:#34E0C8;
  --accent-soft:rgba(52,224,200,.14);
  --gold:#FFC24B;
  --danger:#FF4D5E;
  --bg:#0B0C10;
  --bg-alt:#111318;
  --card:#171A22;
  --line:#262A36;
  --line-soft:rgba(255,255,255,.08);
  --text:#F5F7FA;
  --muted:#A9B1C1;
  --faint:#6E7686;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease)}
button,input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand);color:#14100c}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,12,16,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:linear-gradient(140deg,#FF8F5C,var(--brand));
  color:#191008;font-weight:800;font-size:17px;
  display:grid;place-items:center;letter-spacing:0;
  box-shadow:0 6px 18px rgba(255,106,43,.28);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.logo-text small{display:block;font-size:11px;font-weight:400;color:var(--faint);letter-spacing:1.4px;line-height:1.2}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  display:inline-flex;align-items:center;min-height:40px;
  padding:0 15px;border-radius:999px;
  font-size:15px;color:var(--muted);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.07)}
.nav-link.active{color:var(--brand);background:var(--brand-soft)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-sm);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .16s var(--ease),filter .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),box-shadow .16s var(--ease);
}
.btn-primary{background:var(--brand);color:#17100a;box-shadow:0 10px 24px rgba(255,106,43,.24)}
.btn-primary:hover{filter:brightness(1.09);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed}

.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 15px;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:transparent;color:var(--muted);font-size:15px;cursor:pointer;
  transition:all .16s var(--ease);
}
.mega-trigger:hover{color:var(--text);border-color:var(--brand);color:var(--brand)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:660px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:20px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:1.6px;color:var(--faint);font-weight:600;margin-bottom:12px}
.mega-list li{margin-bottom:4px}
.mega-list a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--muted)}
.mega-list a:hover{background:var(--bg-alt);color:var(--accent)}
.mega-list i{width:18px;text-align:center;color:var(--accent);font-size:13px}
.mega-card{
  display:block;position:relative;overflow:hidden;
  border-radius:var(--radius-md);border:1px solid var(--line);
  padding:14px 14px 12px;background:var(--bg-alt);
}
.mega-card:hover{border-color:var(--brand-line);transform:translateY(-2px)}
.mega-card strong{display:block;font-size:14px;margin-bottom:4px}
.mega-card span{font-size:12px;color:var(--faint);line-height:1.6}
.mega-card + .mega-card{margin-top:10px}
.mega-news li{border-top:1px solid var(--line-soft)}
.mega-news a{display:flex;gap:10px;padding:10px 0;font-size:13px;color:var(--muted)}
.mega-news a:hover{color:var(--accent)}
.mega-news em{font-style:normal;color:var(--faint);font-size:12px;flex:0 0 auto}

.nav-switch{display:none}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);color:var(--text);cursor:pointer}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:var(--bg-alt);padding:12px 22px 20px}
.mobile-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--line-soft);color:var(--muted);font-size:15px}
.mobile-nav a.active{color:var(--brand)}
.nav-switch:checked ~ .mobile-nav{display:block}

/* ---------- breadcrumb + article head ---------- */
.article-head{
  position:relative;
  border-bottom:1px solid var(--line-soft);
  background-color:var(--bg-alt);
  background-image:linear-gradient(180deg,rgba(11,12,16,.82),rgba(11,12,16,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:26px 0 44px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .current{color:var(--brand);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb i{font-size:10px;color:var(--faint)}
.article-head h1{
  font-size:clamp(25px,3.5vw,40px);
  line-height:1.3;
  letter-spacing:.2px;
  margin:14px 0 18px;
  max-width:900px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;line-height:1.6;letter-spacing:.4px;
}
.badge-cat{background:var(--brand-soft);color:var(--brand);border:1px solid var(--brand-line)}
.badge-accent{background:var(--accent-soft);color:var(--accent);border:1px solid rgba(52,224,200,.34)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--faint)}
.meta-row .sep{width:1px;height:13px;background:var(--line)}
.meta-row strong{color:var(--muted);font-weight:500}

/* ---------- article body ---------- */
.section{padding:64px 0}
.section-tight{padding:44px 0 0}
.section-title{font-size:clamp(21px,2.4vw,29px);line-height:1.35;margin-bottom:10px}
.section-sub{color:var(--muted);font-size:15px;max-width:760px;margin-bottom:32px}
.article-body{
  max-width:800px;margin:0 auto;
  font-size:17px;line-height:1.92;color:#DCE2EC;
  word-break:break-word;
}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(20px,2.3vw,26px);line-height:1.4;color:var(--text);
  margin:2em 0 .6em;padding-left:14px;position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand)}
.article-body h3{font-size:19px;line-height:1.45;color:var(--text);margin:1.6em 0 .5em}
.article-body h4{font-size:17px;color:var(--text);margin:1.4em 0 .4em}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#6ff2df}
.article-body ul{list-style:disc;margin:0 0 1.1em;padding-left:1.3em}
.article-body ol{list-style:decimal;margin:0 0 1.1em;padding-left:1.4em}
.article-body li{margin-bottom:.5em}
.article-body img{border-radius:var(--radius-md);margin:1.4em auto;box-shadow:var(--shadow)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.5em 0;padding:14px 20px;
  border-left:3px solid var(--brand);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:rgba(255,255,255,.045);color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;line-height:1.75}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 13px;text-align:left;vertical-align:top}
.article-body th{background:var(--bg-alt);color:var(--text);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body code{background:var(--bg-alt);border:1px solid var(--line);border-radius:6px;padding:2px 7px;font-size:.92em;color:var(--gold)}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:2.2em 0}
.article-body strong{color:#fff}

.article-empty{
  max-width:640px;margin:0 auto;text-align:center;
  padding:56px 28px;border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--bg-alt);
}
.article-empty i{font-size:34px;color:var(--faint)}
.article-empty .empty-title{font-size:20px;font-weight:700;margin:16px 0 8px;color:var(--text)}
.article-empty .empty-desc{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- tags ---------- */
.article-tags{max-width:800px;margin:40px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-label{font-size:13px;color:var(--faint);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;min-height:34px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:var(--bg-alt);
  font-size:13px;color:var(--muted);
}
.tag:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}

/* ---------- prev / next ---------- */
.pager{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pager-card{
  display:block;padding:20px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--card);transition:all .18s var(--ease);
}
.pager-card:hover{border-color:var(--brand-line);transform:translateY(-3px);box-shadow:0 0 0 1px var(--brand-line),var(--shadow)}
.pager-card .pager-label{font-size:12px;letter-spacing:1.4px;color:var(--faint);display:flex;align-items:center;gap:8px;margin-bottom:10px}
.pager-card strong{display:block;font-size:16px;line-height:1.6;color:var(--text);margin-bottom:6px}
.pager-card span{font-size:13px;color:var(--muted);line-height:1.7}
.pager-card.next{text-align:right}
.pager-card.next .pager-label{justify-content:flex-end}

/* ---------- related cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:0 0 0 1px var(--brand-line),var(--shadow)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(11,12,16,.82);color:var(--accent);border:1px solid rgba(52,224,200,.34);backdrop-filter:blur(4px)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17px;line-height:1.55;margin-bottom:8px}
.card-body p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--faint)}
.card-foot i{color:var(--brand);font-size:12px;transition:transform .18s var(--ease)}
.card:hover .card-foot i{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .18s var(--ease)}
.faq details[open]{border-color:var(--brand-line);background:#191D26}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);min-height:44px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{color:var(--brand);transition:transform .2s var(--ease);flex:0 0 auto}
.faq details[open] summary i{transform:rotate(90deg)}
.faq .faq-answer{padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(255,106,43,.14),rgba(52,224,200,.08) 62%,rgba(23,26,34,.9)),
             var(--bg-alt);
  padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  background:radial-gradient(circle,rgba(255,106,43,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:8px;line-height:1.4}
.cta-band p{color:var(--muted);font-size:15px;max-width:600px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-end;gap:8px;position:relative;z-index:1}
.cta-actions small{color:var(--faint);font-size:12px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line-soft);background:var(--bg-alt);margin-top:88px;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.9;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;font-weight:600}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}
.to-top{color:var(--muted);display:inline-flex;align-items:center;min-height:40px}
.to-top:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .mega-panel{width:600px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .mega{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-actions{align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .logo-text{font-size:14px}
  .logo-text small{display:none}
  .section{padding:48px 0}
  .article-head{padding:20px 0 34px}
  .breadcrumb{font-size:12px;margin-bottom:16px}
  .breadcrumb .current{max-width:200px}
  .article-body{font-size:16px;padding:0 0}
  .article-body h2{margin:1.7em 0 .55em}
  .pager{grid-template-columns:1fr}
  .pager-card.next{text-align:left}
  .pager-card.next .pager-label{justify-content:flex-start}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:44px 0 22px;margin-top:64px}
}
@media (max-width:520px){
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:8px 10px}
  .article-tags{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category2 */
:root{
  --bg:#0B0C10;
  --bg-alt:#111318;
  --card:#171A22;
  --line:#262A36;
  --brand:#FF6A2B;
  --cyan:#34E0C8;
  --gold:#FFC24B;
  --alert:#FF4D5E;
  --txt:#F5F7FA;
  --txt-2:#A9B1C1;
  --txt-3:#6E7686;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --max:1240px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}
.section{padding:80px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:36px;max-width:780px;}
.sec-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:.2px;color:var(--txt);}
.sec-desc{margin-top:12px;color:var(--txt-2);font-size:15px;line-height:1.9;}
.idx{display:inline-block;color:var(--brand);font-size:13px;font-weight:700;letter-spacing:2px;margin-bottom:10px;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,12,16,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--txt);font-weight:700;flex-shrink:0;}
.logo:hover{color:var(--txt);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#FF6A2B,#FF9A5C);
  color:#1A0A02;display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:0;
}
.logo-text{font-size:16px;letter-spacing:.3px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;color:var(--txt-2);font-size:15px;
  padding:9px 14px;border-radius:9px;white-space:nowrap;
  transition:color .16s ease-out,background .16s ease-out;
}
.nav-link:hover{color:var(--txt);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-btn);background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--txt-2);font-size:14px;
  cursor:pointer;transition:all .16s ease-out;
}
.mega-trigger:hover{color:var(--txt);border-color:var(--brand);}
.mega-trigger i{font-size:11px;transition:transform .16s ease-out;}
.mega-wrap.open .mega-trigger i,
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:640px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 24px 60px rgba(0,0,0,.62);
  padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
  z-index:90;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:13px;color:var(--txt-3);letter-spacing:1px;margin-bottom:12px;}
.mega-list{display:flex;flex-direction:column;gap:6px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--txt-2);font-size:14px;transition:all .16s ease-out;
}
.mega-list a:hover{background:rgba(255,255,255,.05);color:var(--txt);}
.mega-list i{color:var(--brand);width:16px;text-align:center;font-size:13px;}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:12px;
  padding:14px;background:var(--bg-alt);transition:all .16s ease-out;
}
.mega-card + .mega-card{margin-top:10px;}
.mega-card:hover{border-color:var(--brand);transform:translateY(-2px);}
.mega-card strong{display:block;color:var(--txt);font-size:14px;font-weight:600;}
.mega-card span{display:block;color:var(--txt-3);font-size:12px;line-height:1.7;margin-top:4px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--txt);font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-nav{display:none;border-top:1px solid rgba(255,255,255,.08);background:var(--bg-alt);padding:14px 0 20px;}
.mobile-nav .container{display:flex;flex-direction:column;gap:6px;}
.m-nav-link{color:var(--txt-2);font-size:15px;padding:12px 14px;border-radius:10px;min-height:44px;display:flex;align-items:center;}
.m-nav-link:hover{background:rgba(255,255,255,.05);color:var(--txt);}
.m-nav-link.active{color:var(--brand);background:rgba(255,106,43,.08);}
.m-nav-cta{margin-top:8px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,filter .16s ease-out,
             background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--brand);color:#1A0A02;}
.btn-primary:hover{color:#1A0A02;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px var(--brand),0 10px 24px rgba(255,106,43,.28);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--txt);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn:disabled{opacity:.45;cursor:not-allowed;}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.08);}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.35;filter:saturate(1.05);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,12,16,.96) 0%,rgba(11,12,16,.82) 46%,rgba(11,12,16,.58) 100%);
}
.hero-inner{position:relative;z-index:2;padding:72px 22px 60px;max-width:var(--max);margin:0 auto;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--txt-3);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--txt-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .cur{color:var(--brand);}
.hero-title{
  font-size:clamp(28px,4.2vw,46px);line-height:1.25;font-weight:800;
  letter-spacing:.2px;max-width:820px;
}
.hero-sub{
  margin-top:18px;max-width:680px;color:var(--txt-2);
  font-size:16px;line-height:1.95;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;margin-top:44px;max-width:820px;
}
.hero-stats li{
  background:rgba(23,26,34,.72);border:1px solid var(--line);
  border-radius:12px;padding:14px 16px;
}
.hero-stats strong{display:block;color:var(--gold);font-size:20px;font-weight:800;line-height:1.4;}
.hero-stats span{display:block;color:var(--txt-3);font-size:13px;line-height:1.7;margin-top:2px;}

/* ============ 要点 ============ */
.points-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.point-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),0 14px 34px rgba(0,0,0,.5);}
.point-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(52,224,200,.1);border:1px solid rgba(52,224,200,.35);
  color:var(--cyan);font-size:17px;margin-bottom:16px;
}
.point-card h3{font-size:18px;font-weight:700;line-height:1.5;}
.point-card p{margin-top:10px;color:var(--txt-2);font-size:14px;line-height:1.9;}

/* ============ 错位大卡 ============ */
.stagger-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.stagger-col{display:flex;flex-direction:column;gap:24px;}
.stagger-col.offset{margin-top:56px;}
.big-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.big-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),0 16px 38px rgba(0,0,0,.52);}
.big-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0d0f14;}
.big-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.big-card:hover .big-card-media img{transform:scale(1.04);}
.big-card-body{padding:22px;}
.card-title{font-size:19px;font-weight:700;line-height:1.5;}
.card-text{margin-top:10px;color:var(--txt-2);font-size:14px;line-height:1.9;}
.mini-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.mini-list li{position:relative;padding-left:18px;color:var(--txt-2);font-size:14px;line-height:1.8;}
.mini-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--cyan);font-size:14px;font-weight:600;}
.text-link:hover{color:var(--brand);gap:10px;}
.badge{
  display:inline-flex;align-items:center;border-radius:var(--r-pill);
  padding:3px 10px;font-size:12px;font-weight:600;line-height:1.7;
}
.badge-gold{background:rgba(255,194,75,.14);color:var(--gold);border:1px solid rgba(255,194,75,.35);}
.badge-cyan{background:rgba(52,224,200,.12);color:var(--cyan);border:1px solid rgba(52,224,200,.32);}
.badge-brand{background:rgba(255,106,43,.14);color:var(--brand);border:1px solid rgba(255,106,43,.36);}
.big-card-media .badge{position:absolute;top:12px;left:12px;background:rgba(11,12,16,.78);backdrop-filter:blur(6px);}

/* ============ 三步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.step{
  position:relative;background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px 26px;
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.step:hover{border-color:var(--cyan);transform:translateY(-3px);}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:rgba(255,106,43,.9);
  letter-spacing:1px;font-family:Inter,system-ui,sans-serif;
}
.step h3{margin-top:14px;font-size:18px;font-weight:700;}
.step p{margin-top:10px;color:var(--txt-2);font-size:14px;line-height:1.9;}
.step::after{
  content:"";position:absolute;left:0;top:0;width:44px;height:3px;
  border-radius:3px 0 3px 0;background:linear-gradient(90deg,var(--brand),rgba(255,106,43,0));
}

/* ============ 提醒条 ============ */
.alert-band{
  background:var(--bg-alt);border:1px solid rgba(255,77,94,.32);
  border-radius:var(--r-card);padding:28px 26px;
}
.alert-head{display:flex;align-items:center;gap:10px;color:var(--alert);font-size:15px;font-weight:700;}
.alert-head i{font-size:16px;}
.alert-list{margin-top:16px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px;}
.alert-list li{color:var(--txt-2);font-size:14px;line-height:1.9;padding-left:18px;position:relative;}
.alert-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:2px;
  background:var(--alert);border-radius:2px;
}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .16s ease-out;
}
.faq-item:hover{border-color:rgba(255,106,43,.5);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--txt);min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"＋";color:var(--brand);font-size:16px;font-weight:700;
  flex-shrink:0;transition:transform .18s ease-out;
}
.faq-item[open] summary::after{content:"－";}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq-body{padding:0 22px 20px;color:var(--txt-2);font-size:14.5px;line-height:1.95;border-top:1px solid rgba(255,255,255,.06);padding-top:16px;}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);}
.cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,12,16,.96),rgba(17,19,24,.86));}
.cta-inner{
  position:relative;z-index:2;padding:56px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  max-width:var(--max);margin:0 auto;
}
.cta-title{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.4;}
.cta-sub{margin-top:10px;color:var(--txt-2);font-size:14.5px;max-width:620px;line-height:1.9;}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:8px;}
.cta-hint{color:var(--txt-3);font-size:12.5px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid rgba(255,255,255,.08);padding-top:60px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;}
.footer-brand p{margin-top:14px;color:var(--txt-2);font-size:14px;line-height:1.9;max-width:330px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--txt);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--txt-2);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:18px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--txt-3);font-size:13px;
}
.to-top{color:var(--txt-2);font-size:13px;}
.to-top:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .mega-panel{width:560px;}
  .logo-text{font-size:15px;}
}
@media (max-width:1023px){
  .main-nav,.mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:14px;}
  .page-hero .hero-inner{padding:52px 22px 44px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:32px;}
  .points-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stagger-cols{grid-template-columns:1fr;gap:20px;}
  .stagger-col.offset{margin-top:0;}
  .stagger-col{gap:20px;}
  .steps{grid-template-columns:1fr;}
  .alert-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .section{padding:56px 0;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .hero-inner{padding:40px 18px 36px;}
  .hero-title{font-size:clamp(24px,7vw,32px);}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .points-grid{grid-template-columns:1fr;}
  .big-card-body{padding:18px;}
  .card-title{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-inner{padding:44px 18px;gap:22px;}
  .cta-side .btn{width:100%;}
  .section{padding:48px 0;}
}

/* roulang page: category3 */
:root{
  --c-primary:#FF6A2B;
  --c-primary-soft:rgba(255,106,43,.14);
  --c-accent:#34E0C8;
  --c-accent-soft:rgba(52,224,200,.12);
  --c-gold:#FFC24B;
  --c-danger:#FF4D5E;
  --bg-base:#0B0C10;
  --bg-alt:#111318;
  --bg-card:#171A22;
  --line:#262A36;
  --line-soft:rgba(255,255,255,.08);
  --t-1:#F5F7FA;
  --t-2:#A9B1C1;
  --t-3:#6E7686;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,filter .16s ease-out,border-color .16s ease-out,background-color .16s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#150F0A}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,106,43,.65),0 0 22px rgba(255,106,43,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.02);border-color:var(--line);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,12,16,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,#FF6A2B,#FFA168);
  color:#160F0A;font-weight:800;font-size:18px;
  display:grid;place-items:center;
}
.logo-text{font-weight:700;font-size:17px;letter-spacing:.2px}
.main-nav{display:flex;gap:4px;margin-left:6px}
.nav-link{
  padding:9px 14px;border-radius:10px;font-size:15px;color:var(--t-2);
  transition:color .16s ease-out,background-color .16s ease-out;
}
.nav-link:hover{color:var(--t-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--c-primary);background:var(--c-primary-soft)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

/* Mega */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 14px;
  border-radius:10px;border:1px solid var(--line);background:transparent;
  color:var(--t-2);font-size:14px;cursor:pointer;
  transition:color .16s ease-out,border-color .16s ease-out;
}
.mega:hover .mega-trigger,.mega:focus-within .mega-trigger{color:var(--t-1);border-color:var(--c-accent)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:660px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow);padding:22px;
  display:grid;grid-template-columns:1fr 1.1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;letter-spacing:1.4px;color:var(--t-3);margin:0 0 12px;text-transform:uppercase}
.mega-link{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--t-2);font-size:14.5px;transition:background-color .16s ease-out,color .16s ease-out;
}
.mega-link:hover{background:rgba(255,255,255,.05);color:var(--t-1)}
.dot{width:7px;height:7px;border-radius:999px;background:var(--c-primary);flex-shrink:0}
.dot.cy{background:var(--c-accent)}
.dot.gd{background:var(--c-gold)}
.mega-card{
  display:block;padding:14px;border:1px solid var(--line);border-radius:12px;
  background:var(--bg-alt);margin-bottom:12px;
  transition:border-color .16s ease-out,transform .16s ease-out;
}
.mega-card:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.mega-card strong{display:block;font-size:14.5px;margin-bottom:4px}
.mega-card span{font-size:12.5px;color:var(--t-3);line-height:1.7}
.mega-line{display:block;padding:9px 0;border-bottom:1px solid var(--line-soft);font-size:13.5px;color:var(--t-2)}
.mega-line:last-child{border-bottom:0}
.mega-line:hover{color:var(--c-accent)}

/* 移动端导航 */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--t-1);font-size:18px;cursor:pointer;place-items:center;
}
.mobile-nav{display:none;border-top:1px solid var(--line-soft);background:rgba(11,12,16,.98);padding:12px 0 18px}
.mobile-nav.open{display:block}
.m-link{display:block;padding:13px 22px;font-size:15.5px;color:var(--t-2)}
.m-link.active{color:var(--c-primary)}
.m-link:hover{background:rgba(255,255,255,.04);color:var(--t-1)}
.m-cta{margin:12px 22px 0;padding:0 22px}

/* ---------- 板块通用 ---------- */
section{scroll-margin-top:130px}
.sec{padding:80px 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{margin-bottom:34px}
.sec-title{font-size:clamp(22px,2.6vw,32px);font-weight:800;line-height:1.3;margin-bottom:10px}
.sec-sub{color:var(--t-2);font-size:16px;max-width:820px}

/* ---------- 页头 ---------- */
.page-head{padding:52px 0 12px;background:linear-gradient(180deg,#0B0C10 0%,#111318 100%)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .current{color:var(--c-primary)}
.page-title{font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.25;margin-bottom:16px}
.page-sub{color:var(--t-2);font-size:17px;max-width:840px}
.kw{color:var(--c-accent)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.stat{background:var(--bg-card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:border-color .16s ease-out,transform .16s ease-out}
.stat:hover{border-color:rgba(255,106,43,.5);transform:translateY(-2px)}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.3;font-family:Inter,system-ui,sans-serif}
.stat span{font-size:13px;color:var(--t-2)}

/* ---------- 锚点标签条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:40;
  background:rgba(17,19,24,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  margin-top:34px;
}
.anchor-inner{display:flex;gap:10px;padding:12px 0;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-link{
  white-space:nowrap;padding:8px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--t-2);
  transition:border-color .16s ease-out,color .16s ease-out,background-color .16s ease-out;
}
.anchor-link:hover{border-color:var(--c-accent);color:var(--c-accent)}
.anchor-link.on{background:var(--c-primary-soft);border-color:rgba(255,106,43,.55);color:var(--c-primary)}

/* ---------- 榜单 / 时间线 ---------- */
.rank-list{display:grid}
.rank-item{
  display:grid;grid-template-columns:72px minmax(0,1fr);gap:22px;
  padding-bottom:26px;position:relative;
}
.rank-index{display:flex;justify-content:center}
.rank-index span{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-size:18px;font-weight:800;color:var(--c-gold);
  background:#141822;border:1px solid var(--line);
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
}
.rank-item::before{
  content:"";position:absolute;left:36px;top:58px;bottom:4px;width:1px;background:var(--line-soft);
}
.rank-item:last-child::before{display:none}
.rank-item:last-child{padding-bottom:0}
.rank-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.rank-card:hover{border-color:rgba(255,106,43,.55);transform:translateY(-2px);box-shadow:var(--shadow)}
.rank-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.rank-head h3{font-size:19px;font-weight:700;line-height:1.4}
.badge{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  font-size:12.5px;line-height:1.7;border:1px solid transparent;
}
.badge-hot{background:var(--c-primary-soft);color:var(--c-primary);border-color:rgba(255,106,43,.35)}
.badge-net{background:var(--c-accent-soft);color:var(--c-accent);border-color:rgba(52,224,200,.3)}
.badge-acc{background:rgba(255,194,75,.12);color:var(--c-gold);border-color:rgba(255,194,75,.3)}
.badge-warn{background:rgba(255,77,94,.12);color:var(--c-danger);border-color:rgba(255,77,94,.3)}
.rank-desc{color:var(--t-2);font-size:15.5px;margin-bottom:16px}
.check-list{display:grid;gap:10px}
.check-list li{position:relative;padding-left:24px;font-size:15px;color:var(--t-2)}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--c-accent);font-size:14px;font-weight:700;
}
.rank-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--t-3);
}
.rank-figure{margin-top:18px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.rank-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.rank-card:hover .rank-figure img{transform:scale(1.03)}

/* ---------- 三步自查 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;transition:border-color .18s ease-out,transform .18s ease-out;
}
.step:hover{border-color:rgba(52,224,200,.45);transform:translateY(-3px)}
.step .num{font-family:Inter,system-ui,sans-serif;font-size:14px;font-weight:800;color:var(--c-primary);letter-spacing:1px}
.step h3{font-size:18px;font-weight:700;margin:10px 0 10px}
.step p{font-size:14.5px;color:var(--t-2)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{background:var(--bg-card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .18s ease-out}
.faq-item:hover{border-color:rgba(255,106,43,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:17px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";color:var(--c-primary);font-size:18px;flex-shrink:0}
.faq-item[open] summary::after{content:"－"}
.faq-body{padding:0 24px 22px;border-top:1px solid var(--line-soft);padding-top:16px;color:var(--t-2);font-size:15.5px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:20px;border:1px solid var(--line);overflow:hidden;
  background-image:linear-gradient(110deg,rgba(11,12,16,.95),rgba(17,19,24,.72)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;padding:46px 44px;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;margin-bottom:10px}
.cta-inner p{color:var(--t-2);font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.cta-actions small{color:var(--t-3);font-size:13px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0d0f14;border-top:1px solid var(--line-soft);margin-top:84px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:58px 0 34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--t-2);font-size:14px;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:var(--t-2);font-size:14px;transition:color .16s ease-out}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.to-top{color:var(--c-accent);font-size:13px}
.to-top:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media(max-width:1279px){
  .mega-panel{width:600px}
}
@media(max-width:1023px){
  .main-nav{display:none}
  .mega{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:64px;gap:14px}
  .anchor-bar{top:64px}
  .page-head{padding:38px 0 8px}
  .sec{padding:56px 0}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 26px}
  .rank-item{grid-template-columns:58px minmax(0,1fr);gap:16px}
  .rank-item::before{left:29px}
  .rank-index span{width:44px;height:44px;border-radius:12px;font-size:16px}
}
@media(max-width:640px){
  .container{padding:0 18px}
  .page-title{font-size:clamp(24px,7vw,32px)}
  .page-sub{font-size:15.5px}
  .stat-row{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:14px 16px}
  .stat b{font-size:22px}
  .rank-item{grid-template-columns:1fr;gap:12px}
  .rank-item::before{display:none}
  .rank-index{justify-content:flex-start}
  .rank-card{padding:20px}
  .rank-head h3{font-size:17px}
  .cta-band{padding:30px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-body{padding:0 18px 18px;padding-top:14px}
}