/* roulang page: index */
:root{
  --brand-1:#FF6B2C;
  --brand-2:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --bg:#0B0D12;
  --bg-2:#12151E;
  --surface:#171B26;
  --surface-2:#1D2230;
  --text:#F4F6FF;
  --muted:#A8B0C3;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-lg:26px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-hover:0 22px 54px rgba(0,0,0,.48);
  --grad:linear-gradient(115deg,#FF6B2C 0%,#8A4DFF 100%);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#fff}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
input{outline:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,18,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:70px}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:.3px;white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;font-size:15px;font-weight:800;color:#fff;
  box-shadow:0 8px 20px rgba(138,77,255,.35);
}
.logo-text{background:linear-gradient(90deg,#fff 40%,#E7DEFF 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:var(--muted);font-weight:500;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;font-weight:700}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:12px}
.search-box{position:relative;width:240px}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);padding:0 40px 0 16px;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:#6E7789}
.search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.search-box .s-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--bg-2);padding:16px 0 24px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:14px 4px;font-size:19px;font-weight:600;border-bottom:1px solid var(--line);color:var(--text)}
.mobile-drawer .m-cta{margin-top:18px;display:block;text-align:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(255,107,44,.26)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(138,77,255,.38);color:#fff;filter:brightness(1.05)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.06);transform:translateY(-1px);color:#fff}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.5}
.hero-mask{position:absolute;inset:0;background:
  radial-gradient(900px 520px at 12% 30%,rgba(255,107,44,.24),transparent 62%),
  radial-gradient(760px 500px at 88% 18%,rgba(138,77,255,.28),transparent 60%),
  linear-gradient(90deg,#0B0D12 0%,rgba(11,13,18,.86) 46%,rgba(11,13,18,.42) 100%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:74px 0 68px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.05);font-size:13px;color:#D8DDF0;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{
  margin:22px 0 16px;font-size:clamp(32px,4.4vw,60px);line-height:1.18;font-weight:800;letter-spacing:-.5px;
}
.hero h1 .hl{background:linear-gradient(100deg,#FF8A4C,#A97BFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:#C4CBDD;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px}
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:12.5px;color:#C9D0E2;
}
.stat-badge i{width:7px;height:7px;border-radius:50%;background:var(--brand-1)}
.stat-badge.b2 i{background:var(--brand-2)}
.stat-badge.b3 i{background:var(--cyan)}
.stat-badge.b4 i{background:var(--yellow)}
.stat-badge b{color:#fff;font-weight:800;font-variant-numeric:tabular-nums}
.hero-visual{position:relative}
.poster-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);background:var(--surface);
}
.poster-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.poster-card .poster-grad{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,0) 34%,rgba(11,13,18,.9) 100%)}
.poster-meta{position:absolute;left:20px;right:20px;bottom:18px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px}
.poster-meta h3{font-size:17px;font-weight:700}
.poster-meta p{font-size:12.5px;color:var(--muted)}
.play-dot{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:66px;height:66px;border-radius:50%;background:rgba(255,107,44,.92);
  display:grid;place-items:center;box-shadow:0 14px 34px rgba(255,107,44,.45);
}
.play-dot::after{content:"";border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:5px}
.float-card{
  position:absolute;right:-14px;bottom:-22px;width:230px;padding:14px 16px;border-radius:18px;
  background:var(--surface-2);border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
}
.float-card .fc-title{font-size:13px;color:var(--muted)}
.float-card .fc-line{display:flex;align-items:center;justify-content:space-between;margin-top:8px;font-size:14px;font-weight:700}
.progress{height:6px;border-radius:6px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:10px}
.progress span{display:block;height:100%;width:72%;border-radius:6px;background:var(--grad)}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section.soft{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.3px}
.section-head .sh-desc{margin-top:8px;color:var(--muted);font-size:14.5px;max-width:640px}
.section-head .sh-more{font-size:14px;color:#D6C7FF;font-weight:600;white-space:nowrap}
.section-head .sh-more:hover{color:#fff}

/* 横滑轨道 */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.card{
  flex:0 0 auto;width:320px;scroll-snap-align:start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,.42)}
.card-cover{position:relative;overflow:hidden;background:#0F131C}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.corner-tag{
  position:absolute;left:12px;top:12px;padding:4px 11px;border-radius:999px;font-size:11.5px;font-weight:700;
  background:rgba(11,13,18,.72);border:1px solid var(--line-strong);color:#fff;backdrop-filter:blur(6px);
}
.corner-tag.hot{background:linear-gradient(100deg,#FF6B2C,#8A4DFF);border-color:transparent}
.card-body{padding:16px 18px 18px}
.card-body h3{font-size:16.5px;font-weight:700;line-height:1.5}
.card-body p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12.5px;color:#8F98AC}
.chipline{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chip{padding:4px 11px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:11.5px;color:#C3CADD}

/* 热播推荐 */
.hot-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.hot-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.hot-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hot-main .hm-grad{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,.1) 30%,rgba(11,13,18,.94) 100%)}
.hm-text{position:absolute;left:26px;right:26px;bottom:24px}
.hm-text h3{font-size:clamp(20px,2vw,26px);font-weight:800}
.hm-text p{margin-top:8px;color:#C2C9DB;font-size:14px;max-width:520px}
.hot-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:12px 8px}
.hot-item{display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:16px;transition:background .2s ease}
.hot-item:hover{background:rgba(255,255,255,.05)}
.rank-no{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;width:34px;color:#5E6678;flex:0 0 34px}
.hot-item:nth-child(1) .rank-no{color:#FF8A4C}
.hot-item:nth-child(2) .rank-no{color:#A97BFF}
.hot-item:nth-child(3) .rank-no{color:#22D3EE}
.hot-item .hi-main{flex:1;min-width:0}
.hot-item .hi-main strong{display:block;font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-item .hi-main span{font-size:12.5px;color:var(--muted)}
.hot-score{font-size:14px;font-weight:800;color:var(--yellow);font-variant-numeric:tabular-nums}

/* 片单分区 */
.playlist-block{padding:36px 0 8px}
.playlist-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.playlist-head .pk-bar{width:5px;height:26px;border-radius:4px;background:var(--grad)}
.playlist-head h3{font-size:21px;font-weight:800}
.playlist-head p{color:var(--muted);font-size:13.5px;margin-top:2px}
.playlist-theme-a .pk-bar{background:linear-gradient(180deg,#FF6B2C,#FFB27A)}
.playlist-theme-b .pk-bar{background:linear-gradient(180deg,#8A4DFF,#C6A9FF)}
.playlist-theme-c .pk-bar{background:linear-gradient(180deg,#22D3EE,#8CE7F5)}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(138,77,255,.44)}
.news-thumb{position:relative;overflow:hidden;background:#0F131C}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17px;font-weight:700;line-height:1.55}
.news-body p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;font-size:12.5px;color:#8F98AC}
.empty-box{
  grid-column:1/-1;padding:46px 24px;text-align:center;border-radius:var(--radius-md);
  border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);color:var(--muted);font-size:14.5px;
}
.empty-box .eb-icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:16px;background:rgba(255,255,255,.06);
  display:grid;place-items:center;font-size:22px;color:var(--cyan);
}

/* 社会认同 */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proof-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px 24px 26px}
.proof-card .pf-num{font-size:34px;font-weight:800;background:linear-gradient(100deg,#FF8A4C,#A97BFF);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.proof-card h3{font-size:16px;font-weight:700;margin-top:6px}
.proof-card p{margin-top:10px;font-size:14px;color:var(--muted)}
.quote-row{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:22px}
.quote{background:var(--surface-2);border:1px solid var(--line);border-left:3px solid transparent;border-image:linear-gradient(180deg,#FF6B2C,#8A4DFF) 1;border-radius:var(--radius-sm);padding:22px 24px}
.quote p{font-size:14.5px;color:#C7CEDF}
.quote span{display:block;margin-top:12px;font-size:12.5px;color:#8F98AC}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:rgba(34,211,238,.4)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:15px;color:var(--cyan);transition:transform .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px;font-size:14.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin:0 0 0}

/* CTA 横幅 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:52px 44px;
  background-image:linear-gradient(100deg,rgba(255,107,44,.92),rgba(138,77,255,.92)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;border:1px solid rgba(255,255,255,.16);
}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:800}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.9);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-light{background:#fff;color:#1A1030}
.btn-light:hover{background:#fff;color:#1A1030;filter:brightness(1.03)}

/* 页脚 */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:340px}
.footer-col h4{font-size:14.5px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13.8px;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7C8598;
}

/* 响应式 */
@media (max-width:1180px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .search-box{width:200px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:38px;padding:56px 0 62px}
  .hero-visual{order:2}
  .float-card{position:relative;right:auto;bottom:auto;width:100%;margin-top:16px}
  .hot-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .search-box{display:none}
  .hero h1{margin-top:18px}
  .hero-actions .btn{flex:1 1 auto}
  .card{width:78vw}
  .news-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .quote-row{grid-template-columns:1fr}
  .cta-band{padding:38px 22px}
  .footer-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .nav-wrap{height:62px}
  .logo{font-size:16px}
  .hot-item{gap:12px;padding:12px}
  .rank-no{font-size:19px;width:26px;flex-basis:26px}
}

/* roulang page: article */
:root{
  --bg:#0B0D12;
  --bg-2:#12151E;
  --surface:#171B26;
  --surface-2:#1E2331;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.22);
  --text:#F4F6FF;
  --text-dim:#A8B0C3;
  --orange:#FF6B2C;
  --purple:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --grad:linear-gradient(120deg,#FF6B2C 0%,#8A4DFF 100%);
  --radius-lg:26px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-soft:0 10px 26px rgba(0,0,0,.28);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 8% -6%,rgba(255,107,44,.16),transparent 70%),
    radial-gradient(760px 460px at 92% 4%,rgba(138,77,255,.18),transparent 72%),
    radial-gradient(600px 400px at 50% 100%,rgba(34,211,238,.08),transparent 70%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
input{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 28px;position:relative;z-index:1}
.reader{max-width:820px}
.num{font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,13,18,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,18,.94);
  box-shadow:0 12px 30px rgba(0,0,0,.42);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:70px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#fff;
  box-shadow:0 10px 22px rgba(255,107,44,.34);
}
.logo-text{font-size:16.5px;font-weight:800;letter-spacing:.4px;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-links a{
  position:relative;
  padding:8px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text-dim);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:3px;background:var(--grad);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:9px;
  width:250px;height:40px;padding:0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-dim);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{font-size:13px}
.search-box input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:#6F7891}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.menu-toggle{
  display:none;
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text);
  cursor:pointer;
  place-items:center;
  font-size:15px;
}
.menu-toggle:hover{background:rgba(255,255,255,.1)}
.mobile-drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(9,11,16,.98);
  padding:22px 24px 32px;
  display:flex;flex-direction:column;gap:26px;
  transform:translateY(-102%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);cursor:pointer;font-size:16px;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:14px 4px;
  font-size:19px;font-weight:700;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--cyan)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;font-weight:700;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 12px 28px rgba(138,77,255,.30);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 16px 36px rgba(255,107,44,.34)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--line-strong);transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:30px;
  font-size:13px;
  color:var(--text-dim);
}
.breadcrumb a{color:var(--text-dim);transition:color .2s ease}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{
  max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#D6DCEC;
}

/* ---------- Article hero ---------- */
.article-hero{padding:26px 0 10px}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;
  font-size:12.5px;font-weight:700;
  color:#FFB894;
  background:rgba(255,107,44,.12);
  border:1px solid rgba(255,107,44,.30);
}
.article-title{
  font-size:clamp(28px,4vw,46px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.4px;
  color:#fff;
  margin:18px 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:12.5px;color:var(--text-dim);
}
.badge b{color:var(--text);font-weight:700}
.dot{width:6px;height:6px;border-radius:50%;display:inline-block;flex-shrink:0}
.dot-orange{background:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.16)}
.dot-purple{background:var(--purple);box-shadow:0 0 0 3px rgba(138,77,255,.16)}
.dot-cyan{background:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.dot-yellow{background:var(--yellow);box-shadow:0 0 0 3px rgba(255,209,102,.16)}

.article-cover{
  margin-top:28px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--surface-2);
  aspect-ratio:16/7;
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- Article body ---------- */
.article-main{padding:48px 0 8px}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:#D9DFEE;
  word-break:break-word;
}
.article-body p{margin:0 0 1.3em}
.article-body h1,
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.6vw,29px);
  font-weight:750;
  line-height:1.45;
  color:#fff;
  margin:46px 0 16px;
  padding-left:18px;
}
.article-body h1::before,
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:5px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:700;color:#fff;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:#fff;margin:24px 0 10px}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(34,211,238,.38);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:#7DE6F5;border-color:#7DE6F5}
.article-body ul,
.article-body ol{margin:0 0 1.4em;padding-left:1.35em}
.article-body li{margin-bottom:.55em}
.article-body ul li::marker{color:var(--orange)}
.article-body ol li::marker{color:var(--purple);font-weight:700}
.article-body img{width:100%;height:auto;border-radius:18px;margin:26px auto;box-shadow:var(--shadow-soft)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-dim);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;
  border-radius:0 16px 16px 0;
  background:rgba(138,77,255,.09);
  border-left:4px solid var(--purple);
  color:#C8D0E4;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:#fff;background:rgba(255,255,255,.045);font-weight:700}
.article-body tr:hover td{background:rgba(255,255,255,.02)}
.article-body code{
  background:rgba(255,255,255,.08);
  padding:2px 7px;border-radius:6px;font-size:.92em;color:#FFD9C2;
}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body strong{color:#fff}

.empty-state{
  text-align:center;
  padding:70px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.02);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;
  border-radius:20px;display:grid;place-items:center;
  font-size:24px;color:var(--cyan);
  background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.26);
}
.empty-state h2{margin:0 0 10px;font-size:22px;font-weight:750;color:#fff}
.empty-state p{margin:0 auto 22px;max-width:420px;color:var(--text-dim);font-size:15px}

/* ---------- Section base ---------- */
.section{padding:64px 0}
.section-head{margin-bottom:28px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--cyan);text-transform:uppercase;
}
.section-title{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;color:#fff;margin:10px 0 8px;line-height:1.4;
}
.section-desc{color:var(--text-dim);font-size:15px;margin:0;max-width:640px}

/* ---------- Recommend ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.48);box-shadow:0 20px 46px rgba(0,0,0,.45)}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:16.5px;font-weight:700;color:#fff;margin:0;line-height:1.5}
.rec-body p{margin:0;font-size:13.5px;color:var(--text-dim);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-dim)}

/* ---------- Back actions ---------- */
.back-actions{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:26px;
  border-radius:var(--radius-md);
  background:linear-gradient(120deg,rgba(255,107,44,.10),rgba(138,77,255,.12));
  border:1px solid var(--line);
}
.back-actions .hint{color:var(--text-dim);font-size:14px;margin-right:auto}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:rgba(138,77,255,.45);background:var(--surface-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:-3px}
.faq-item .chev{color:var(--text-dim);transition:transform .25s ease,color .25s ease;font-size:13px}
.faq-item[open] .chev{transform:rotate(180deg);color:var(--cyan)}
.faq-answer{
  padding:0 22px 20px;
  margin-top:-2px;
  color:var(--text-dim);
  font-size:15px;
  line-height:1.85;
  border-top:1px solid var(--line);
  padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  padding:52px 40px;
  text-align:center;
  background:
    radial-gradient(520px 260px at 12% 0%,rgba(255,107,44,.24),transparent 70%),
    radial-gradient(520px 260px at 88% 100%,rgba(138,77,255,.28),transparent 70%),
    #141824;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.cta-band h2{margin:0 0 12px;font-size:clamp(22px,2.8vw,32px);font-weight:800;color:#fff;line-height:1.4}
.cta-band p{margin:0 auto 26px;max-width:560px;color:var(--text-dim);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:64px;
  border-top:1px solid var(--line);
  background:#0E1119;
  padding:56px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-dim);font-size:14px;line-height:1.85;margin:0;max-width:330px}
.footer-col h4{font-size:15px;font-weight:750;color:#fff;margin:4px 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-col a{color:var(--text-dim);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--cyan);padding-left:3px}
.footer-bottom{
  margin-top:38px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-dim);
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .container{padding:0 24px}
  .search-box{width:220px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .search-box{display:none}
  .menu-toggle{display:grid}
  .header-inner{height:64px;gap:14px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-cover{aspect-ratio:16/9}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .article-main{padding:36px 0 8px}
  .article-title{margin:14px 0 14px}
  .article-body{font-size:16px}
  .article-body h1,.article-body h2{margin-top:36px}
  .back-actions{padding:20px}
  .back-actions .hint{width:100%;margin:0 0 4px}
  .cta-band{padding:38px 22px;border-radius:24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-brand p{max-width:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:15px}
  .rec-grid{grid-template-columns:1fr}
  .meta-row{gap:8px}
  .badge{font-size:12px;padding:5px 12px}
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .btn-sm{height:36px}
  .article-cover{border-radius:20px;aspect-ratio:4/3}
  .article-body img{border-radius:14px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --bg:#0B0D12;
  --bg-soft:#12151E;
  --surface:#171B26;
  --surface-2:#1D2231;
  --text:#F4F6FF;
  --muted:#A8B0C3;
  --line:rgba(255,255,255,0.10);
  --brand-1:#FF6B2C;
  --brand-2:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 16px 40px rgba(0,0,0,0.35);
  --grad:linear-gradient(120deg,#FF6B2C,#8A4DFF);
}
*,*::before,*::after{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",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
div.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(255,107,44,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(138,77,255,.36);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);}
.btn-ghost:hover{background:rgba(255,107,44,.14);border-color:rgba(255,107,44,.5);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}

.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:12.5px;color:var(--muted);white-space:nowrap;
}
.badge b{color:var(--text);font-variant-numeric:tabular-nums;}
.badge-sm{padding:5px 11px;font-size:12px;}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex:none;}
.dot-cyan{background:var(--cyan);}
.dot-orange{background:var(--brand-1);}
.dot-yellow{background:var(--yellow);}
.dot-purple{background:var(--brand-2);}

.section{padding:74px 0;}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:660px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,18,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:800;flex:none;
}
.logo-text{background:linear-gradient(90deg,#fff,#D9CFFF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 13px;border-radius:10px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-links a.active{color:var(--text);font-weight:600;background:rgba(255,255,255,.06);}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-search{
  display:flex;align-items:center;gap:8px;width:238px;height:40px;padding:0 14px;
  border-radius:999px;background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.header-search:focus-within{border-color:rgba(34,211,238,.7);box-shadow:0 0 0 3px rgba(34,211,238,.14);}
.header-search i{color:#6C7690;font-size:13px;}
.header-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font-size:13.5px;}
.header-search input::placeholder{color:#6C7690;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  place-items:center;font-size:16px;
}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:68px;bottom:0;z-index:55;
  background:var(--bg);padding:22px 20px 40px;overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:19px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:#fff;}
.mobile-drawer a.active i{color:var(--brand-1);}
.mobile-drawer .drawer-cta{margin-top:26px;width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:60px 0 76px;
  background:
    radial-gradient(900px 420px at 10% -12%, rgba(255,107,44,.20), transparent 62%),
    radial-gradient(820px 480px at 94% -6%, rgba(138,77,255,.24), transparent 66%),
    var(--bg-soft);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.32);
  color:#9BE9F7;font-size:13px;font-weight:600;
}
.hero-copy h1{
  margin-top:18px;
  font-size:clamp(30px,4.3vw,50px);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;
}
.hero-sub{
  margin-top:16px;font-size:19px;font-weight:700;
  background:linear-gradient(90deg,#FF6B2C,#FFD166);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{margin-top:14px;max-width:560px;color:var(--muted);font-size:15.5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-visual{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,18,0) 42%,rgba(11,13,18,.66));
}
.hero-float{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:999px;
  background:rgba(11,13,18,.7);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);font-size:13px;color:#DCE1F0;
}

/* ---------- 入口网格 ---------- */
.split{display:grid;grid-template-columns:262px 1fr;gap:28px;align-items:start;}
.filter-panel{
  position:sticky;top:92px;
  display:flex;flex-direction:column;gap:8px;
  padding:20px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
}
.filter-label{font-size:12.5px;letter-spacing:.08em;color:#7E879B;margin-bottom:4px;}
.filter-btn{
  text-align:left;padding:10px 14px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--muted);border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.filter-btn:hover{color:var(--text);background:rgba(255,255,255,.05);}
.filter-btn.active{
  color:#fff;font-weight:600;
  background:linear-gradient(120deg,rgba(255,107,44,.92),rgba(138,77,255,.92));
  box-shadow:0 10px 24px rgba(138,77,255,.28);
}
.filter-btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.filter-note{
  margin-top:10px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:#7E879B;line-height:1.65;
}
.entry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:20px;}
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);background:var(--surface);
  border:1px solid var(--line);box-shadow:0 12px 30px rgba(0,0,0,.28);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.55);box-shadow:0 20px 44px rgba(0,0,0,.44);}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#20242F;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.entry-card:hover .card-cover img{transform:scale(1.03);}
.corner{
  position:absolute;top:12px;left:12px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;color:#fff;
  background:rgba(11,13,18,.62);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px;flex:1;}
.card-body h3{font-size:17px;font-weight:700;line-height:1.5;}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:#FFB07A;
  transition:color .2s ease,gap .2s ease;
}
.link-arrow:hover{color:var(--yellow);gap:11px;}
.link-arrow:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.empty-tip{
  display:none;padding:44px 20px;border-radius:var(--radius-lg);
  border:1px dashed var(--line);background:var(--surface);
  text-align:center;color:var(--muted);font-size:14.5px;
}
.empty-tip i{display:block;font-size:24px;color:#4C556B;margin-bottom:12px;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.step{
  padding:28px 24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);}
.step-num{
  display:inline-grid;place-items:center;width:46px;height:46px;margin-bottom:16px;
  border-radius:14px;background:rgba(255,107,44,.14);color:#FF9A5C;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);}

/* ---------- 数据与须知 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:44px;}
.stat{
  padding:24px 18px;border-radius:20px;text-align:center;
  background:var(--surface);border:1px solid var(--line);
}
.stat b{
  display:block;font-size:30px;font-weight:800;line-height:1.2;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
}
.check-item i{color:var(--cyan);font-size:15px;margin-top:5px;flex:none;}
.check-item p{font-size:14.5px;color:var(--muted);}
.check-item b{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  margin-bottom:12px;border-radius:18px;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(138,77,255,.5);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{color:var(--cyan);font-size:14px;transition:transform .25s ease;flex:none;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{
  padding:16px 22px 20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:14.5px;line-height:1.8;
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 84px;}
.cta-banner{
  position:relative;overflow:hidden;text-align:center;
  padding:56px 32px;border-radius:var(--radius-xl);
  background:linear-gradient(120deg,rgba(255,107,44,.94),rgba(138,77,255,.94));
  box-shadow:0 24px 60px rgba(138,77,255,.28);
}
.cta-banner::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.14);top:-220px;right:-120px;
}
.cta-banner::after{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  background:rgba(11,13,18,.16);bottom:-180px;left:-90px;
}
.cta-banner h2{position:relative;z-index:2;font-size:clamp(24px,3vw,34px);font-weight:800;}
.cta-banner p{position:relative;z-index:2;margin-top:12px;color:rgba(255,255,255,.9);font-size:15.5px;}
.cta-banner .cta-actions{position:relative;z-index:2;display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:26px;}
.btn-white{background:#fff;color:#25203A;box-shadow:0 12px 28px rgba(0,0,0,.22);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(0,0,0,.3);}
.btn-outline-white{border:1px solid rgba(255,255,255,.65);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:62px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand p{margin-top:14px;max-width:330px;color:var(--muted);font-size:14px;line-height:1.8;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--muted);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:#FFB07A;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  color:#7E879B;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .header-search{display:none;}
  .menu-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual{order:2;}
  .split{grid-template-columns:1fr;}
  .filter-panel{position:static;flex-direction:row;flex-wrap:wrap;align-items:center;}
  .filter-label{width:100%;}
  .filter-note{width:100%;}
  .steps{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .page-hero{padding:44px 0 56px;}
  .hero-sub{font-size:17px;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{padding:0 0 60px;}
  .cta-banner{padding:42px 22px;}
}
@media (max-width:520px){
  div.container{padding:0 16px;}
  .header-inner{height:62px;gap:12px;}
  .mobile-drawer{top:62px;}
  .logo{font-size:15.5px;}
  .logo-mark{width:28px;height:28px;font-size:14px;}
  .stats{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .hero-actions .btn{flex:1;min-width:150px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --brand-orange:#FF6B2C;
  --brand-violet:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --bg:#0B0D12;
  --bg-2:#12151E;
  --surface:#171B26;
  --surface-2:#1E2431;
  --text:#F4F6FF;
  --text-muted:#A8B0C3;
  --line:rgba(255,255,255,0.10);
  --line-strong:rgba(255,255,255,0.20);
  --grad:linear-gradient(120deg,#FF6B2C 0%,#8A4DFF 100%);
  --grad-soft:linear-gradient(120deg,rgba(255,107,44,.16),rgba(138,77,255,.16));
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-soft:0 10px 26px rgba(0,0,0,.28);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.3}
input{font:inherit}
::selection{background:rgba(138,77,255,.45);color:#fff}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,18,.84);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:68px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--grad);
  color:#fff;font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 8px 18px rgba(138,77,255,.35);
}
.logo-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{
  position:relative;
  padding:9px 13px;
  font-size:14.5px;
  color:var(--text-muted);
  border-radius:999px;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;
  border-radius:999px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:250px;height:40px;
  padding:0 8px 0 14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--text-muted);font-size:13px}
.search-box input{
  flex:1;min-width:0;height:100%;
  background:none;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:rgba(168,176,195,.7)}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);
  align-items:center;justify-content:center;font-size:16px;
}
.menu-toggle:hover{border-color:var(--line-strong)}
.mobile-drawer{
  display:none;
  position:fixed;left:0;right:0;top:68px;bottom:0;
  background:rgba(11,13,18,.985);
  padding:22px 24px 40px;
  flex-direction:column;
  gap:2px;
  overflow-y:auto;
  z-index:75;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  font-size:19px;font-weight:600;
  padding:15px 4px;
  border-bottom:1px solid var(--line);
  color:var(--text);
}
.mobile-drawer a.active{color:var(--brand-orange)}
.mobile-drawer .drawer-cta{margin-top:22px;border-bottom:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:650;
  letter-spacing:.2px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(138,77,255,.30)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 34px rgba(138,77,255,.42)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{background:var(--grad-soft);border-color:rgba(255,255,255,.32);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn:focus-visible{outline:3px solid rgba(34,211,238,.7);outline-offset:2px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--cyan);
  transition:gap .18s ease,color .18s ease;
}
.link-arrow:hover{gap:10px;color:#7EE9F7}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-muted);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-orange);flex-shrink:0}
.badge.violet .dot{background:var(--brand-violet)}
.badge.cyan .dot{background:var(--cyan)}
.badge.yellow .dot{background:var(--yellow)}
.badge.solid{background:var(--grad-soft);border-color:rgba(138,77,255,.35);color:var(--text)}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.90) 42%,rgba(11,13,18,.62) 100%);
}
.hero::after{
  content:"";position:absolute;left:-12%;top:-30%;width:620px;height:620px;
  background:radial-gradient(circle,rgba(255,107,44,.20),transparent 65%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.04fr .96fr;
  gap:52px;align-items:center;
  padding:76px 0 84px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--text);
  background:var(--grad-soft);
  border:1px solid rgba(138,77,255,.34);
}
.hero-tag i{color:var(--brand-orange);font-size:12px}
.hero h1{
  margin-top:20px;
  font-size:52px;
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.22;
}
.hero h1 .grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  color:var(--text-muted);
  max-width:520px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-row{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-row li{display:flex;flex-direction:column;gap:2px}
.stat-row strong{
  font-size:24px;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-row span{font-size:13px;color:var(--text-muted)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-xl);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;
  background:rgba(23,27,38,.94);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(8px);
}
.hero-float .ring{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--grad);color:#fff;font-size:15px;
}
.hero-float strong{display:block;font-size:14.5px}
.hero-float span{font-size:12.5px;color:var(--text-muted)}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section.tight{padding:60px 0}
.section-head{margin-bottom:36px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand-orange);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.section-head h2{font-size:32px;font-weight:800;letter-spacing:-.3px}
.section-head p{margin-top:12px;color:var(--text-muted);font-size:15.5px}

/* ============ 更新要点 ============ */
.highlight-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.hl-card{
  padding:22px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease;
}
.hl-card:hover{transform:translateY(-4px);border-color:rgba(138,77,255,.42)}
.hl-icon{
  width:42px;height:42px;border-radius:14px;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:var(--grad);margin-bottom:14px;
}
.hl-card:nth-child(2) .hl-icon{background:linear-gradient(120deg,#8A4DFF,#22D3EE)}
.hl-card:nth-child(3) .hl-icon{background:linear-gradient(120deg,#22D3EE,#8A4DFF)}
.hl-card:nth-child(4) .hl-icon{background:linear-gradient(120deg,#FFD166,#FF6B2C)}
.hl-card h3{font-size:17px;font-weight:700}
.hl-card p{margin-top:8px;font-size:14px;color:var(--text-muted);line-height:1.75}
.hl-num{
  display:block;margin-top:14px;
  font-size:13px;font-weight:700;color:var(--cyan);
  font-variant-numeric:tabular-nums;
}

/* ============ 更新流时间轴 ============ */
.timeline-wrap{padding-top:8px}
.timeline{position:relative;display:flex;flex-direction:column;gap:22px}
.timeline::before{
  content:"";position:absolute;left:96px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(255,107,44,.65),rgba(138,77,255,.55),rgba(34,211,238,.28));
  border-radius:2px;
}
.tl-item{display:grid;grid-template-columns:96px 1fr;gap:26px;position:relative}
.tl-item::before{
  content:"";position:absolute;left:89px;top:30px;
  width:14px;height:14px;border-radius:50%;
  background:var(--bg);
  border:3px solid var(--brand-orange);
  box-shadow:0 0 0 4px rgba(255,107,44,.12);
}
.tl-item:nth-child(2n)::before{border-color:var(--brand-violet);box-shadow:0 0 0 4px rgba(138,77,255,.14)}
.tl-item:nth-child(3n)::before{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.14)}
.tl-time{
  padding-top:22px;text-align:right;
  display:flex;flex-direction:column;gap:4px;
}
.tl-date{font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.tl-ver{font-size:12px;color:var(--text-muted);font-variant-numeric:tabular-nums}
.tl-card{
  display:grid;grid-template-columns:206px 1fr;gap:20px;
  padding:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(138,77,255,.45);
  box-shadow:var(--shadow);
}
.tl-thumb{
  border-radius:var(--radius-md);
  overflow:hidden;
  background:var(--surface-2);
}
.tl-thumb img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s ease}
.tl-card:hover .tl-thumb img{transform:scale(1.03)}
.tl-body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 2px 0}
.tl-body h3{font-size:19px;font-weight:700}
.tl-body p{font-size:14.5px;color:var(--text-muted);line-height:1.75}
.tl-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:2px;padding-top:12px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-muted);
}
.tl-meta i{margin-right:5px;color:var(--brand-orange);font-size:12px}

/* ============ 更新类型 / 流程 ============ */
.split-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:start}
.panel{
  padding:28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.panel h3{font-size:20px;font-weight:750;margin-bottom:6px}
.panel > p{font-size:14.5px;color:var(--text-muted)}
.type-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.type-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  transition:border-color .2s ease,background .2s ease;
}
.type-list li:hover{border-color:var(--line-strong);background:var(--surface-2)}
.type-dot{
  width:10px;height:10px;border-radius:50%;margin-top:8px;flex-shrink:0;
  background:var(--brand-orange);
}
.type-list li:nth-child(2) .type-dot{background:var(--brand-violet)}
.type-list li:nth-child(3) .type-dot{background:var(--cyan)}
.type-list li:nth-child(4) .type-dot{background:var(--yellow)}
.type-list strong{display:block;font-size:15px;font-weight:700}
.type-list span{font-size:13.5px;color:var(--text-muted)}
.steps{margin-top:20px;display:flex;flex-direction:column;gap:16px}
.step{display:flex;gap:16px;align-items:flex-start}
.step-num{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  border:1px solid rgba(138,77,255,.45);
  background:var(--grad-soft);
}
.step h4{font-size:15.5px;font-weight:700}
.step p{font-size:13.5px;color:var(--text-muted);margin-top:4px}

/* ============ 场景不对称网格 ============ */
.scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.scene-main{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  min-height:340px;
  display:flex;align-items:flex-end;
}
.scene-main img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.scene-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,18,.15) 0%,rgba(11,13,18,.92) 78%);
}
.scene-body{position:relative;z-index:2;padding:28px}
.scene-body h3{font-size:22px;font-weight:750}
.scene-body p{margin-top:8px;font-size:14.5px;color:rgba(244,246,255,.82);max-width:520px}
.scene-side{display:flex;flex-direction:column;gap:20px}
.scene-card{
  flex:1;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4)}
.scene-card i.ico{
  display:grid;place-items:center;
  width:40px;height:40px;border-radius:13px;font-size:16px;color:#fff;
  background:linear-gradient(120deg,#22D3EE,#8A4DFF);
  margin-bottom:14px;
}
.scene-card:nth-child(2) i.ico{background:linear-gradient(120deg,#FFD166,#FF6B2C)}
.scene-card h3{font-size:17px;font-weight:700}
.scene-card p{margin-top:8px;font-size:14px;color:var(--text-muted)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:rgba(138,77,255,.45);background:var(--surface-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:650;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--text-muted);font-size:14px;
  transition:transform .22s ease,color .22s ease;
}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--brand-orange)}
.faq-item p{
  padding:0 22px 20px;
  font-size:14.5px;color:var(--text-muted);
  border-top:1px solid var(--line);
  padding-top:16px;margin:0 0 0 0;
}
.faq-item summary:hover{color:#fff}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  padding:44px 42px;
  background:linear-gradient(120deg,rgba(255,107,44,.92) 0%,rgba(138,77,255,.92) 100%);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 22px 50px rgba(138,77,255,.28);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 68%);
}
.cta-band-text{position:relative;z-index:2;max-width:640px}
.cta-band h2{font-size:28px;font-weight:800;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-band-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}
.btn-light{background:#fff;color:#2A1240;box-shadow:0 12px 26px rgba(0,0,0,.22)}
.btn-light:hover{transform:translateY(-1px);filter:brightness(1.02)}
.btn-outline-light{border:1px solid rgba(255,255,255,.65);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand p{
  margin-top:16px;font-size:14px;color:var(--text-muted);
  max-width:340px;line-height:1.85;
}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:16px;letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{
  font-size:14px;color:var(--text-muted);
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:var(--text);padding-left:3px}
.footer-bottom{
  margin-top:40px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .search-box{width:200px}
  .hero h1{font-size:44px}
  .highlight-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:span 1}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .search-box{display:none}
  .menu-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 64px}
  .hero::after{display:none}
  .hero-visual{order:2}
  .hero h1{font-size:38px}
  .split-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section-head h2{font-size:25px}
  .section-head{margin-bottom:26px}
  .hero h1{font-size:32px;letter-spacing:-.2px}
  .hero-sub{font-size:15.5px}
  .stat-row{gap:20px}
  .stat-row strong{font-size:21px}
  .hero-float{left:12px;bottom:12px;padding:11px 14px}
  .highlight-grid{grid-template-columns:1fr}
  .timeline::before{left:54px}
  .tl-item{grid-template-columns:54px 1fr;gap:16px}
  .tl-item::before{left:48px;top:26px;width:12px;height:12px;border-width:2.5px;box-shadow:0 0 0 3px rgba(255,107,44,.14)}
  .tl-time{padding-top:20px;text-align:left;align-items:flex-start}
  .tl-date{font-size:12px}
  .tl-ver{font-size:11px;writing-mode:horizontal-tb}
  .tl-card{grid-template-columns:1fr;padding:14px;gap:14px}
  .tl-body{padding-right:0}
  .tl-body h3{font-size:17px}
  .panel{padding:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .cta-band h2{font-size:22px}
}
@media (max-width:520px){
  .header-inner{height:62px}
  .mobile-drawer{top:62px}
  .logo-text{font-size:15px}
  .hero-inner{padding:44px 0 54px}
  .hero h1{font-size:28px}
  .hero-cta .btn{flex:1 1 auto;padding:0 18px}
  .stat-row{gap:16px}
  .stat-row li{min-width:calc(50% - 8px)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{font-size:12px}
  .cta-band{padding:28px 20px}
}

/* roulang page: category3 */
:root{
  --brand-1:#FF6B2C;
  --brand-2:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --bg:#0B0D12;
  --bg-2:#12151E;
  --surface:#171B26;
  --text:#F4F6FF;
  --muted:#A8B0C3;
  --line:rgba(255,255,255,0.10);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 16px 40px rgba(0,0,0,0.35);
  --grad:linear-gradient(120deg,#FF6B2C 0%,#8A4DFF 100%);
  --grad-soft:linear-gradient(120deg,rgba(255,107,44,.18) 0%,rgba(138,77,255,.18) 100%);
}
*,*::before,*::after{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",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:800;letter-spacing:.3px}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}
.section-link{font-size:14.5px;font-weight:600;color:var(--yellow);display:inline-flex;align-items:center;gap:8px}
.section-link:hover{color:#fff}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,18,.74);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-solid{background:#0B0D12;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.header-inner{display:flex;align-items:center;gap:22px;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;font-weight:800;font-size:16px;color:#fff;
  box-shadow:0 10px 24px rgba(138,77,255,.35);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:var(--muted);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--grad);
}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:9px;width:250px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:0;font-size:13.5px}
.search-box input::placeholder{color:rgba(168,176,195,.75)}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--text);align-items:center;justify-content:center;
}
.menu-toggle:hover{background:rgba(255,255,255,.1)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#0B0D12;
  padding:18px 24px 26px;
}
.mobile-drawer.open{display:block}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.drawer-nav a{
  padding:13px 16px;border-radius:14px;font-size:17px;font-weight:600;
  color:var(--muted);background:rgba(255,255,255,.03);
}
.drawer-nav a.active{color:#fff;background:var(--grad-soft);border:1px solid rgba(255,107,44,.35)}
.drawer-nav a:hover{color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.3px;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(255,107,44,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 34px rgba(138,77,255,.34)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}
.btn-light{background:#fff;color:#1A1024;box-shadow:0 12px 26px rgba(0,0,0,.24)}
.btn-light:hover{transform:translateY(-1px);filter:brightness(1.02)}
.btn-outline-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}

/* ---------- 徽章 · 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;font-size:12.5px;color:var(--muted);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge b{color:#fff;font-weight:700}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex:0 0 auto}
.dot-orange{background:var(--brand-1)}
.dot-purple{background:var(--brand-2)}
.dot-cyan{background:var(--cyan)}
.dot-yellow{background:var(--yellow)}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#FFD9C2;
  background:rgba(255,107,44,.14);border:1px solid rgba(255,107,44,.32);
}
.tag-purple{color:#DCD1FF;background:rgba(138,77,255,.16);border-color:rgba(138,77,255,.34)}
.tag-cyan{color:#C7F5FC;background:rgba(34,211,238,.14);border-color:rgba(34,211,238,.32)}
.tag-yellow{color:#FFEEC2;background:rgba(255,209,102,.14);border-color:rgba(255,209,102,.32)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:60px 0 34px}
.hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.3;
}
.hero-glow{
  position:absolute;inset:0;
  background:
    radial-gradient(760px 400px at 12% 20%,rgba(255,107,44,.22),transparent 62%),
    radial-gradient(680px 420px at 88% 78%,rgba(138,77,255,.26),transparent 64%),
    linear-gradient(180deg,rgba(11,13,18,.82) 0%,rgba(11,13,18,.96) 68%,#0B0D12 100%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  color:#FFD9C2;background:rgba(255,107,44,.14);border:1px solid rgba(255,107,44,.3);
}
.hero h1{
  margin:18px 0 14px;
  font-size:clamp(32px,4.4vw,58px);
  line-height:1.2;font-weight:800;letter-spacing:.4px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;font-weight:600;color:#FFD9C2;margin-bottom:10px}
.hero-desc{color:var(--muted);font-size:15.5px;max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap}
.hero-poster{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:4/3;background:#12151E;
}
.hero-poster img{width:100%;height:100%;object-fit:cover}
.poster-mask{
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(11,13,18,.05) 30%,rgba(11,13,18,.88) 100%);
}
.poster-info{position:absolute;left:20px;right:20px;bottom:18px}
.poster-info h3{font-size:19px;font-weight:700;margin:10px 0 6px}
.poster-info .meta{font-size:12.5px;color:var(--muted)}
.poster-line{
  position:absolute;left:20px;right:20px;bottom:0;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand-1) 0%,var(--brand-2) 62%,rgba(255,255,255,.1) 62%);
}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
}
.stat-cell{background:var(--surface);padding:26px 24px}
.stat-cell .num{
  font-size:32px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;
}
.stat-cell .label{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- 前三名 ---------- */
.top3-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.top-card{
  position:relative;padding:22px;border-radius:var(--radius-xl);
  background:linear-gradient(var(--surface),var(--surface)) padding-box,
             linear-gradient(140deg,rgba(255,107,44,.6),rgba(138,77,255,.55)) border-box;
  border:1px solid transparent;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.top-card:hover{transform:translateY(-4px);box-shadow:0 22px 46px rgba(0,0,0,.45)}
.top-card.top-2,.top-card.top-3{
  background:linear-gradient(var(--surface),var(--surface)) padding-box,
             linear-gradient(140deg,rgba(138,77,255,.42),rgba(255,255,255,.08)) border-box;
}
.top-rank{
  position:absolute;top:-16px;left:22px;
  width:54px;height:54px;border-radius:18px;
  display:grid;place-items:center;
  font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff;
  background:var(--grad);box-shadow:0 12px 26px rgba(138,77,255,.4);
}
.top-card.top-2 .top-rank,.top-card.top-3 .top-rank{
  background:linear-gradient(120deg,#3B3F51,#22262F);box-shadow:0 10px 22px rgba(0,0,0,.4);
}
.top-cover{
  position:relative;margin:14px 0 16px;border-radius:var(--radius-md);
  overflow:hidden;aspect-ratio:16/9;background:#12151E;
}
.top-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.top-card:hover .top-cover img{transform:scale(1.03)}
.corner{
  position:absolute;top:10px;left:10px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;color:#fff;background:rgba(11,13,18,.72);
  border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(6px);
}
.top-card h3{font-size:18.5px;font-weight:700;line-height:1.5}
.top-card h3 a:hover{color:var(--yellow)}
.top-desc{color:var(--muted);font-size:14px;margin-top:8px}
.top-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}

/* ---------- 榜单列表 ---------- */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-row{
  display:grid;grid-template-columns:64px 108px 1fr auto;
  align-items:center;gap:20px;
  padding:14px 22px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rank-row:hover{
  transform:translateY(-3px);
  border-color:rgba(255,107,44,.45);
  box-shadow:var(--shadow);
}
.rank-no{
  font-size:28px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;color:rgba(244,246,255,.45);
}
.rank-row:nth-child(-n+3) .rank-no{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.rank-thumb{
  display:block;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:#12151E;
}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-main{display:flex;flex-direction:column;gap:4px;min-width:0}
.rank-title{font-size:16.5px;font-weight:700;line-height:1.5}
.rank-title:hover{color:var(--yellow)}
.rank-sub{font-size:13px;color:var(--muted)}
.rank-data{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.rank-more{display:flex;justify-content:center;margin-top:26px}

/* ---------- 口径说明 ---------- */
.criteria{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.criteria-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px 24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.criteria-item:hover{border-color:rgba(34,211,238,.45);transform:translateY(-3px)}
.criteria-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  color:#fff;background:var(--grad-soft);border:1px solid rgba(255,255,255,.14);
  font-variant-numeric:tabular-nums;
}
.criteria-item h3{font-size:16.5px;font-weight:700;margin-bottom:6px}
.criteria-item p{font-size:14px;color:var(--muted)}

/* ---------- 横滑轨道 ---------- */
.track-wrap{position:relative}
.track{
  display:flex;gap:18px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.track::-webkit-scrollbar{display:none}
.track-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.track-card:hover{transform:translateY(-4px);border-color:rgba(138,77,255,.5);box-shadow:var(--shadow)}
.track-cover{position:relative;aspect-ratio:16/9;background:#12151E;overflow:hidden}
.track-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.track-card:hover .track-cover img{transform:scale(1.03)}
.track-body{padding:18px 20px 22px}
.track-body h3{font-size:16.5px;font-weight:700;line-height:1.5}
.track-body p{font-size:13.5px;color:var(--muted);margin-top:8px}
.track-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:14px}
.track-hint{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:7px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:18px;overflow:hidden;transition:border-color .2s ease;
}
.faq-item.open{border-color:rgba(34,211,238,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 24px;background:transparent;border:0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--yellow)}
.faq-icon{color:var(--muted);font-size:13px;transition:transform .25s ease}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:280px}
.faq-a p{
  padding:0 24px 20px;font-size:14.5px;color:var(--muted);
  border-top:1px solid var(--line);padding-top:16px;margin:0 0 0;
}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  min-height:200px;padding:44px 48px;border-radius:var(--radius-xl);
  background:var(--grad);box-shadow:0 24px 54px rgba(138,77,255,.3);
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.16);
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{font-size:28px;font-weight:800;color:#fff;line-height:1.35}
.cta-copy p{color:rgba(255,255,255,.9);font-size:15.5px;margin-top:10px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;background:var(--bg-2);
  border-top:1px solid var(--line);padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:38px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:380px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .header-inner{height:64px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero{padding:44px 0 28px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .top3-grid{grid-template-columns:1fr;gap:30px}
  .criteria{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:58px 0}
  .section-head h2{font-size:26px}
  .cta-banner{padding:36px 32px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .search-box{display:none}
  .rank-row{grid-template-columns:46px 84px 1fr;gap:14px;padding:14px 16px}
  .rank-data{grid-column:3;justify-content:flex-start}
  .rank-no{font-size:22px}
  .track-card{flex:0 0 78vw}
  .cta-copy h2{font-size:23px}
}
@media (max-width:520px){
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{padding:20px 18px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .rank-row{grid-template-columns:38px 1fr;gap:12px}
  .rank-thumb{display:none}
  .rank-data{grid-column:2}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-banner{padding:28px 22px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:14px 18px 18px}
}

/* roulang page: category4 */
:root{
  --brand-1:#FF6B2C;
  --brand-2:#8A4DFF;
  --cyan:#22D3EE;
  --yellow:#FFD166;
  --bg:#0B0D12;
  --bg-2:#12151E;
  --surface:#171B26;
  --surface-2:#1D2230;
  --text:#F4F6FF;
  --muted:#A8B0C3;
  --line:rgba(255,255,255,.10);
  --grad:linear-gradient(115deg,#FF6B2C 0%,#8A4DFF 100%);
  --grad-soft:linear-gradient(115deg,rgba(255,107,44,.16) 0%,rgba(138,77,255,.16) 100%);
  --radius-sm:14px;
  --radius-md:20px;
  --radius-lg:26px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-hover:0 26px 60px rgba(0,0,0,.5);
  --container:1240px;
}
*{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","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
button,input{font-family:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,18,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 8px 20px rgba(138,77,255,.35);
}
.logo-text{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:24px;}
.nav-links a{
  position:relative;display:inline-block;padding:22px 0;
  font-size:14px;color:var(--muted);white-space:nowrap;
}
.nav-links a:hover{color:#fff;}
.nav-links a.active{color:#fff;font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;
  border-radius:999px;background:var(--grad);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;width:250px;}
.search-box input{
  width:100%;height:42px;padding:0 16px 0 40px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  color:var(--text);font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s;
}
.search-box input::placeholder{color:#6F7889;}
.search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16);}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--muted);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(138,77,255,.32);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 18px 36px rgba(255,107,44,.34);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--grad-soft);border-color:rgba(255,107,44,.5);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;background:var(--surface);
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text);transition:.2s;}
body.nav-open .menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .menu-toggle span:nth-child(2){opacity:0;}
body.nav-open .menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:55;
  background:var(--bg);border-top:1px solid var(--line);
  padding:22px 24px 40px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
body.nav-open .mobile-drawer{opacity:1;visibility:visible;transform:none;}
.mobile-drawer a.drawer-link{
  display:block;padding:16px 4px;font-size:20px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--brand-1);}
.mobile-drawer .drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px;}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb a:hover{color:var(--brand-1);}
.crumb .sep{margin:0 8px;opacity:.5;}

/* ---------- topic hero ---------- */
.topic-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.topic-hero-media{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.40;transform:scale(1.04);
}
.topic-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.86) 46%,rgba(11,13,18,.42) 100%);
}
.topic-hero .container{position:relative;z-index:2;}
.topic-hero-inner{padding:44px 0 72px;}
.topic-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:999px;background:rgba(255,107,44,.14);border:1px solid rgba(255,107,44,.34);
  font-size:13px;font-weight:600;color:#FFB58C;letter-spacing:.04em;
}
.topic-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-1);box-shadow:0 0 0 4px rgba(255,107,44,.18);}
.topic-hero h1{
  margin:22px 0 0;font-size:clamp(32px,4.4vw,58px);font-weight:800;letter-spacing:-.01em;line-height:1.16;
  max-width:16em;
}
.topic-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#FF9A5A 0%,#B98CFF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.topic-hero .lead{
  margin-top:20px;max-width:620px;font-size:16px;line-height:1.9;color:var(--muted);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.stat-badge{
  display:inline-flex;align-items:center;gap:9px;padding:9px 16px;border-radius:999px;
  background:rgba(23,27,38,.86);border:1px solid var(--line);font-size:13px;color:var(--muted);
}
.stat-badge .pt{width:7px;height:7px;border-radius:50%;flex:0 0 auto;}
.pt-orange{background:var(--brand-1);}
.pt-violet{background:var(--brand-2);}
.pt-cyan{background:var(--cyan);}
.pt-yellow{background:var(--yellow);}
.stat-badge b{color:var(--text);font-weight:700;font-size:14px;}

/* ---------- section ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.01em;}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px;}
.section-link{font-size:14px;font-weight:600;color:#FFB58C;display:inline-flex;align-items:center;gap:6px;}
.section-link:hover{color:#fff;}
.eyebrow{
  display:inline-block;margin-bottom:12px;font-size:13px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brand-1);
}

/* ---------- rail ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 14px;margin:0 -4px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.tile{
  flex:0 0 330px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:14px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,.45);}
.tile-cover{
  position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#101420;
}
.tile-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.tile:hover .tile-cover img{transform:scale(1.03);}
.tile-corner{
  position:absolute;left:12px;top:12px;height:26px;padding:0 11px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:#fff;
  background:rgba(11,13,18,.72);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(6px);
}
.tile-corner.hot{background:var(--grad);border-color:transparent;}
.tile-body{padding:16px 6px 6px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tile-body h3{font-size:17px;font-weight:700;line-height:1.45;}
.tile-body p{font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tile-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:auto;padding-top:6px;}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.chip-cyan{color:#8FE9F7;border-color:rgba(34,211,238,.34);background:rgba(34,211,238,.10);}
.chip-yellow{color:#FFE1A3;border-color:rgba(255,209,102,.32);background:rgba(255,209,102,.10);}
.chip-violet{color:#C7AEFF;border-color:rgba(138,77,255,.36);background:rgba(138,77,255,.12);}

/* ---------- featured wide card ---------- */
.feature-split{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;}
.feature-main{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  min-height:340px;display:flex;align-items:flex-end;box-shadow:var(--shadow-card);
}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feature-main .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,18,.10) 0%,rgba(11,13,18,.92) 78%);
}
.feature-main .inner{position:relative;z-index:2;padding:28px;}
.feature-main h3{font-size:clamp(20px,2.2vw,26px);font-weight:800;}
.feature-main p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:52ch;}
.feature-side{display:flex;flex-direction:column;gap:16px;}
.mini-card{
  display:flex;gap:14px;padding:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(138,77,255,.45);box-shadow:var(--shadow-card);}
.mini-thumb{width:96px;height:66px;border-radius:14px;overflow:hidden;flex:0 0 auto;background:#101420;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-card h4{font-size:15px;font-weight:700;line-height:1.5;}
.mini-card span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);transition:transform .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.42);}
.step .idx{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid rgba(255,107,44,.32);
  font-weight:800;font-size:16px;color:#FFB58C;margin-bottom:16px;
}
.step h3{font-size:16.5px;font-weight:700;}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}
.step .bar{margin-top:18px;height:4px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.step .bar i{display:block;height:100%;border-radius:999px;background:var(--grad);}

/* ---------- evidence ---------- */
.evidence{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.ev-card{
  padding:26px 22px;border-radius:var(--radius-md);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(23,27,38,1) 0%,rgba(18,21,30,1) 100%);
}
.ev-card b{display:block;font-size:32px;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(100deg,#FF9A5A,#B98CFF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.ev-card span{display:block;margin-top:8px;font-size:14px;color:var(--muted);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start;}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;}
.faq-intro p{margin-top:14px;color:var(--muted);font-size:15px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item[open]{border-color:rgba(138,77,255,.42);background:var(--surface-2);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);font-size:15px;color:var(--muted);
  transition:transform .24s ease,background .2s ease,color .2s ease,border-color .2s;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--grad);color:#fff;border-color:transparent;}
.faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--grad);padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 30px 70px rgba(138,77,255,.28);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.88);}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
.btn-white{background:#fff;color:#221033;box-shadow:0 14px 30px rgba(0,0,0,.22);}
.btn-white:hover{transform:translateY(-1px);filter:brightness(.97);}
.btn-outline-white{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:62px 0 26px;margin-top:8px;}
.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(--muted);line-height:1.85;max-width:38ch;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col li + li{margin-top:11px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand-1);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8798;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .search-box{width:200px;}
  .menu-toggle{display:flex;}
  .feature-split{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .evidence{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .topic-hero-inner{padding:30px 0 54px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;}
  .tile{flex:0 0 78vw;}
  .feature-main{min-height:280px;}
  .cta-band{padding:38px 24px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .search-box{display:none;}
  .header-inner{gap:14px;}
  .logo-text{font-size:14px;}
  .steps{grid-template-columns:1fr;}
  .evidence{grid-template-columns:1fr;}
  .hero-stats{gap:8px;}
  .stat-badge{font-size:12px;padding:8px 12px;}
  .hero-actions .btn{width:100%;}
  .mini-thumb{width:82px;height:58px;}
}

/* roulang page: category5 */
:root{
    --bg:#0B0D12;
    --bg-2:#12151E;
    --surface:#171B26;
    --surface-2:#1D2231;
    --line:rgba(255,255,255,.10);
    --line-strong:rgba(255,255,255,.18);
    --text:#F4F6FF;
    --muted:#A8B0C3;
    --orange:#FF6B2C;
    --violet:#8A4DFF;
    --cyan:#22D3EE;
    --yellow:#FFD166;
    --grad:linear-gradient(120deg,#FF6B2C 0%,#8A4DFF 100%);
    --radius-lg:26px;
    --radius-md:20px;
    --radius-sm:14px;
    --shadow:0 16px 40px rgba(0,0,0,.35);
    --shadow-lg:0 26px 60px rgba(0,0,0,.5);
    --fs-h1:52px;
    --fs-h2:32px;
    --fs-h3:21px;
    --fs-body:16px;
    --maxw:1260px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:
      radial-gradient(1100px 620px at 88% -8%, rgba(138,77,255,.20), transparent 62%),
      radial-gradient(900px 520px at 4% 4%, rgba(255,107,44,.16), transparent 60%),
      var(--bg);
    color:var(--text);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
    font-size:var(--fs-body);
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button,input{font-family:inherit;font-size:inherit;color:inherit}
  button{cursor:pointer;border:0;background:none}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700}
  p{margin:0}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
  .section{padding:84px 0}
  .section-sm{padding:64px 0}
  .section-head{max-width:760px;margin-bottom:40px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.08em;color:var(--cyan);
    background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
    border-radius:999px;padding:6px 14px;margin-bottom:16px;
  }
  .eyebrow i{font-size:11px}
  .section-title{font-size:var(--fs-h2);font-weight:800;letter-spacing:.01em}
  .section-sub{color:var(--muted);margin-top:14px;font-size:15.5px;max-width:640px}

  /* ============ HEADER / NAV ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,13,18,.72);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .25s ease,box-shadow .25s ease;
  }
  .site-header.is-scrolled{background:rgba(11,13,18,.94);box-shadow:0 12px 30px rgba(0,0,0,.42)}
  .nav-wrap{
    min-height:68px;display:flex;align-items:center;gap:26px;
  }
  .logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .logo-mark{
    width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
    background:var(--grad);color:#fff;font-weight:800;font-size:17px;
    box-shadow:0 8px 22px rgba(138,77,255,.38);
  }
  .logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
  .nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
  .nav-links a{
    position:relative;display:inline-block;padding:9px 13px;border-radius:10px;
    font-size:14.5px;color:var(--muted);transition:color .2s ease,background .2s ease;
  }
  .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-links a.active{color:var(--text);font-weight:700}
  .nav-links a.active::after{
    content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;border-radius:3px;
    background:var(--grad);
  }
  .nav-side{margin-left:auto;display:flex;align-items:center;gap:12px}
  .nav-search{
    display:flex;align-items:center;gap:8px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:999px;padding:8px 16px;width:250px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16)}
  .nav-search i{color:var(--muted);font-size:13px}
  .nav-search input{background:none;border:0;outline:none;width:100%;font-size:14px}
  .nav-search input::placeholder{color:#6E7690}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;font-weight:700;font-size:15px;
    padding:0 26px;height:46px;white-space:nowrap;
    transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,border-color .2s ease;
  }
  .btn:active{transform:scale(.98)}
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(138,77,255,.34)}
  .btn-primary:hover{filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 18px 36px rgba(255,107,44,.34)}
  .btn-ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text)}
  .btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(138,77,255,.6);transform:translateY(-1px)}
  .btn-sm{height:40px;padding:0 20px;font-size:14px}
  .nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);place-items:center}
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;margin:3px auto}

  .mobile-drawer{
    display:none;border-top:1px solid var(--line);
    background:rgba(11,13,18,.98);
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer .container{padding-top:18px;padding-bottom:26px}
  .mobile-drawer a{
    display:block;padding:16px 6px;font-size:20px;font-weight:700;
    border-bottom:1px solid var(--line);color:var(--muted);
  }
  .mobile-drawer a.active{color:var(--text)}
  .mobile-drawer .btn{width:100%;margin-top:20px}

  /* ============ HERO ============ */
  .hero{position:relative;padding:64px 0 76px;overflow:hidden}
  .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
  .hero h1{
    font-size:var(--fs-h1);font-weight:800;letter-spacing:-.01em;margin-bottom:18px;
  }
  .hero h1 .grad{
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{color:var(--muted);font-size:17px;max-width:560px;margin-bottom:28px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
  .badge-row{display:flex;flex-wrap:wrap;gap:12px}
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    border-radius:999px;padding:7px 15px;font-size:13px;color:var(--muted);
  }
  .badge b{color:var(--text);font-weight:800}
  .dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
  .dot-orange{background:var(--orange);box-shadow:0 0 0 4px rgba(255,107,44,.16)}
  .dot-violet{background:var(--violet);box-shadow:0 0 0 4px rgba(138,77,255,.16)}
  .dot-cyan{background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.16)}
  .dot-yellow{background:var(--yellow);box-shadow:0 0 0 4px rgba(255,209,102,.16)}

  .hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line)}
  .hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover}
  .hero-visual::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(160deg,rgba(255,107,44,.30),rgba(11,13,18,.78) 62%),linear-gradient(0deg,rgba(11,13,18,.85),transparent 58%);
  }
  .hero-visual .float-card{
    position:absolute;left:22px;right:22px;bottom:22px;z-index:2;
    background:rgba(17,20,28,.86);border:1px solid var(--line-strong);
    border-radius:var(--radius-sm);padding:14px 18px;
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    backdrop-filter:blur(8px);
  }
  .float-card .fc-title{font-size:14.5px;font-weight:700}
  .float-card .fc-sub{font-size:12.5px;color:var(--muted)}
  .tag{
    display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;
    border-radius:999px;padding:5px 12px;
  }
  .tag-orange{background:rgba(255,107,44,.14);color:#FFB38C;border:1px solid rgba(255,107,44,.34)}
  .tag-violet{background:rgba(138,77,255,.14);color:#C7A7FF;border:1px solid rgba(138,77,255,.34)}
  .tag-cyan{background:rgba(34,211,238,.12);color:#8FE9F7;border:1px solid rgba(34,211,238,.32)}
  .tag-yellow{background:rgba(255,209,102,.13);color:#FFE0A1;border:1px solid rgba(255,209,102,.32)}

  /* ============ 快捷锚点 ============ */
  .quickbar{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:22px 24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;
    box-shadow:var(--shadow);
  }
  .quickbar .qb-label{font-size:13.5px;color:var(--muted);margin-right:6px}
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    border:1px solid var(--line);border-radius:999px;padding:9px 18px;
    font-size:14px;color:var(--muted);background:rgba(255,255,255,.02);
    transition:all .2s ease;
  }
  .chip:hover{color:var(--text);border-color:rgba(138,77,255,.55);background:rgba(138,77,255,.10);transform:translateY(-2px)}

  /* ============ FAQ ============ */
  .faq-grid{display:grid;grid-template-columns:1fr;gap:14px;max-width:980px;margin:0 auto}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
    overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
  }
  .faq-item:hover{border-color:rgba(138,77,255,.42);box-shadow:var(--shadow);transform:translateY(-2px)}
  .faq-item[open]{border-color:rgba(255,107,44,.5);box-shadow:var(--shadow)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
    padding:20px 24px;font-size:16.5px;font-weight:700;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-num{
    flex-shrink:0;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
    font-size:13px;font-weight:800;color:#fff;background:rgba(255,255,255,.07);
    border:1px solid var(--line);
  }
  .faq-item[open] .faq-num{background:var(--grad);border-color:transparent}
  .faq-item summary .chev{margin-left:auto;color:var(--muted);font-size:14px;transition:transform .28s ease,color .28s ease}
  .faq-item[open] summary .chev{transform:rotate(180deg);color:var(--orange)}
  .faq-body{padding:0 24px 24px 70px;border-top:1px solid var(--line);margin-top:0}
  .faq-body p{color:var(--muted);font-size:15px;padding-top:16px}

  /* ============ 入口矩阵 ============ */
  .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .matrix-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:26px 24px;display:flex;flex-direction:column;gap:14px;
    transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  }
  .matrix-card:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.5);box-shadow:var(--shadow)}
  .mc-icon{
    width:48px;height:48px;border-radius:16px;display:grid;place-items:center;
    font-size:19px;color:#fff;background:var(--grad);box-shadow:0 10px 24px rgba(138,77,255,.3);
  }
  .mc-icon.alt-1{background:linear-gradient(130deg,#22D3EE,#8A4DFF);box-shadow:0 10px 24px rgba(34,211,238,.26)}
  .mc-icon.alt-2{background:linear-gradient(130deg,#FFD166,#FF6B2C);box-shadow:0 10px 24px rgba(255,209,102,.24)}
  .mc-icon.alt-3{background:linear-gradient(130deg,#8A4DFF,#22D3EE);box-shadow:0 10px 24px rgba(138,77,255,.28)}
  .matrix-card h3{font-size:18px}
  .matrix-card p{color:var(--muted);font-size:14.5px;flex:1}
  .mc-link{font-size:14px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px;transition:gap .2s ease,color .2s ease}
  .matrix-card:hover .mc-link{gap:12px;color:var(--yellow)}

  /* ============ 自助排查步骤 ============ */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
  .step{
    background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:24px 22px;transition:transform .22s ease,border-color .22s ease;
  }
  .step:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5)}
  .step-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
  .step-no{
    font-size:26px;font-weight:800;line-height:1;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .step-line{flex:1;height:2px;margin-left:14px;border-radius:2px;background:linear-gradient(90deg,rgba(255,107,44,.7),rgba(138,77,255,.05))}
  .step h3{font-size:16.5px;margin-bottom:8px}
  .step p{color:var(--muted);font-size:14px}

  /* ============ 数据 / 证据 ============ */
  .proof{
    background:linear-gradient(135deg,rgba(255,107,44,.10),rgba(138,77,255,.12));
    border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 36px;
  }
  .proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .proof-item{border-left:2px solid rgba(255,255,255,.14);padding-left:20px}
  .proof-item:first-child{border-left:0;padding-left:0}
  .proof-num{font-size:34px;font-weight:800;line-height:1.1}
  .proof-num span{font-size:16px;font-weight:700;color:var(--muted);margin-left:4px}
  .proof-item p{color:var(--muted);font-size:14px;margin-top:8px}

  /* ============ CTA ============ */
  .cta-band{
    background:var(--grad);border-radius:32px;padding:56px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
    box-shadow:0 28px 60px rgba(138,77,255,.34);position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
    background:rgba(255,255,255,.14);
  }
  .cta-band h2{font-size:30px;font-weight:800;color:#fff;position:relative;z-index:2}
  .cta-band p{color:rgba(255,255,255,.9);margin-top:10px;font-size:15.5px;position:relative;z-index:2}
  .cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
  .btn-light{background:#fff;color:#2A1240;box-shadow:0 12px 26px rgba(0,0,0,.24)}
  .btn-light:hover{transform:translateY(-1px);filter:brightness(1.03)}
  .btn-outline-light{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.6);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}

  /* ============ 面包屑 ============ */
  .breadcrumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);padding-top:22px;flex-wrap:wrap}
  .breadcrumb a{transition:color .2s ease}
  .breadcrumb a:hover{color:var(--cyan)}
  .breadcrumb .sep{opacity:.5}

  /* ============ FOOTER ============ */
  .site-footer{border-top:1px solid var(--line);background:var(--bg-2);margin-top:20px}
  .footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
    padding:60px 0 40px;
  }
  .footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:340px}
  .footer-col h4{font-size:15px;margin-bottom:16px}
  .footer-col li{margin-bottom:11px}
  .footer-col a{color:var(--muted);font-size:14.5px;transition:color .2s ease}
  .footer-col a:hover{color:var(--cyan)}
  .footer-bottom{
    border-top:1px solid var(--line);padding:22px 0 34px;
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    color:var(--muted);font-size:13.5px;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1100px){
    .matrix{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
    .proof-grid{grid-template-columns:repeat(2,1fr)}
    .proof-item:nth-child(3){border-left:0;padding-left:0}
  }
  @media (max-width:1024px){
    :root{--fs-h1:40px;--fs-h2:28px}
    .nav-links,.nav-search{display:none}
    .nav-toggle{display:grid}
    .nav-side{gap:10px}
    .hero-grid{grid-template-columns:1fr;gap:38px}
    .hero-visual{order:2}
    .section{padding:64px 0}
  }
  @media (max-width:768px){
    :root{--fs-h1:34px;--fs-h2:25px;--fs-h3:19px}
    .container{padding:0 18px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px}
    .footer-brand{grid-column:1/-1}
    .cta-band{padding:40px 26px;border-radius:24px}
    .cta-band h2{font-size:24px}
    .faq-body{padding-left:24px}
    .proof{padding:30px 22px}
  }
  @media (max-width:520px){
    :root{--fs-h1:30px;--fs-h2:23px}
    .matrix{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .proof-grid{grid-template-columns:1fr}
    .proof-item{border-left:0;padding-left:0}
    .hero{padding:40px 0 52px}
    .hero-actions .btn{width:100%}
    .faq-item summary{padding:17px 18px;font-size:15.5px;gap:12px}
    .footer-grid{grid-template-columns:1fr}
  }