/* roulang page: index */
:root{
  --ink-900:#0B0D10;
  --ink-800:#14171C;
  --ink-700:#23272E;
  --paper:#FAFAF8;
  --paper-2:#F2F2ED;
  --white:#FFFFFF;
  --brand:#FF5A1F;
  --brand-press:#DE4410;
  --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A;
  --sand:#D9B26A;
  --text:#14171C;
  --text-2:#5B616B;
  --text-3:#9AA1AC;
  --line:#E6E6E1;
  --line-dark:rgba(255,255,255,.10);
  --r-card:14px;
  --r-poster:12px;
  --r-btn:10px;
  --r-chip:999px;
  --r-input:10px;
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.site{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.container.wide{max-width:1320px;}
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.bg-paper{background:var(--paper);}
.bg-paper2{background:var(--paper-2);}
.bg-ink{background:var(--ink-900);color:#fff;}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);border-bottom:1px solid transparent;}
.site-header .header-inner{display:flex;align-items:center;gap:28px;height:60px;max-width:1320px;margin:0 auto;padding:0 32px;transition:height .22s var(--ease);}
.site-header.is-scrolled{background:rgba(250,250,248,.93);backdrop-filter:blur(12px);border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(11,13,16,.65);}
.site-header.is-scrolled .header-inner{height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;font-size:14px;letter-spacing:.02em;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16.5px;font-weight:700;color:#fff;letter-spacing:-.01em;transition:color .22s var(--ease);}
.brand-text em{font-style:normal;font-size:10.5px;letter-spacing:.08em;color:rgba(255,255,255,.62);transition:color .22s var(--ease);}
.site-header.is-scrolled .brand-text strong{color:var(--text);}
.site-header.is-scrolled .brand-text em{color:var(--text-3);}
.nav-channels{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:rgba(255,255,255,.84);transition:color .18s var(--ease);white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:#fff;font-weight:700;}
.site-header.is-scrolled .nav-link{color:var(--text-2);}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.active{color:var(--text);}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-wrap{display:flex;align-items:center;gap:8px;}
.search-field{width:0;opacity:0;pointer-events:none;transition:width .24s var(--ease),opacity .2s var(--ease);}
.search-wrap.open .search-field{width:230px;opacity:1;pointer-events:auto;}
.search-field input{width:100%;height:40px;border-radius:var(--r-input);border:1px solid var(--line);background:var(--white);padding:0 14px;font-size:14px;color:var(--text);font-family:inherit;}
.search-field input::placeholder{color:var(--text-3);}
.search-field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft);}
.icon-btn{width:40px;height:40px;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.88);border:1px solid transparent;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.icon-btn:hover{background:rgba(255,255,255,.10);}
.site-header.is-scrolled .icon-btn{color:var(--text-2);border-color:var(--line);}
.site-header.is-scrolled .icon-btn:hover{background:var(--paper-2);color:var(--text);}
.menu-btn{display:none;}
.hot-chips{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:0 0 2px;}
.hot-chips::-webkit-scrollbar{display:none;}
.chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.04em;color:rgba(255,255,255,.8);background:rgba(255,255,255,.08);transition:background .18s var(--ease),color .18s var(--ease);white-space:nowrap;}
.chip:hover{background:rgba(255,255,255,.18);color:#fff;}
.chip.on{background:var(--ink-900);color:#fff;}
.site-header.is-scrolled .chip{color:var(--text-2);background:var(--paper-2);}
.site-header.is-scrolled .chip:hover{background:#E7E7E0;color:var(--text);}
.site-header.is-scrolled .chip.on{background:var(--ink-900);color:#fff;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;transition:background .18s var(--ease),transform .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-press);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.10);}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--line);}
.btn-outline:hover{background:var(--paper-2);border-color:var(--ink-900);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(78vh,720px);display:flex;align-items:flex-end;overflow:hidden;background:var(--ink-900) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,.30) 0%,rgba(11,13,16,.55) 45%,rgba(11,13,16,.94) 100%);}
.hero-inner{position:relative;z-index:2;width:100%;max-width:var(--container);margin:0 auto;padding:150px 32px 56px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-chip);background:var(--brand-soft);border:1px solid rgba(255,90,31,.32);color:#FFB99B;font-size:12px;letter-spacing:.08em;}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--jade);display:inline-block;}
.hero h1{color:#fff;font-size:clamp(30px,4.6vw,56px);line-height:1.06;font-weight:900;letter-spacing:-.02em;margin:20px 0 0;max-width:19em;}
.hero-sub{margin-top:18px;max-width:38em;font-size:clamp(16px,1.35vw,19px);line-height:1.75;color:rgba(255,255,255,.78);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{display:flex;align-items:center;gap:16px;margin-top:36px;color:rgba(255,255,255,.6);}
.hero-meta .num{font-family:var(--mono);font-size:13px;letter-spacing:.02em;}
.hero-meta .bar{width:80px;height:2px;background:rgba(255,255,255,.24);position:relative;overflow:hidden;}
.hero-meta .bar::after{content:"";position:absolute;left:0;top:0;bottom:0;width:34%;background:var(--brand);}
.hero-arrows{position:absolute;right:32px;bottom:56px;z-index:3;display:flex;gap:10px;}
.arrow-btn{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.42);color:#fff;display:flex;align-items:center;justify-content:center;transition:background .18s var(--ease),border-color .18s var(--ease);}
.arrow-btn:hover{background:rgba(255,255,255,.14);border-color:#fff;}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.sec-kicker{font-size:12px;letter-spacing:.1em;color:var(--brand);font-weight:700;margin-bottom:8px;}
.sec-title{font-size:clamp(22px,2.2vw,28px);font-weight:800;letter-spacing:-.015em;}
.sec-title.light{color:#fff;}
.sec-desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:46em;}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-2);transition:color .18s var(--ease);white-space:nowrap;}
.more-link span{transition:transform .18s var(--ease);}
.more-link:hover{color:var(--brand);}
.more-link:hover span{transform:translateX(4px);}
.more-link.light{color:rgba(255,255,255,.72);}
.more-link.light:hover{color:#fff;}

/* ---------- rail ---------- */
.rail-wrap{position:relative;}
.rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 10px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 calc((100% - 54px) / 4.5);scroll-snap-align:start;}
.poster{display:block;border-radius:var(--r-poster);overflow:hidden;position:relative;aspect-ratio:2/3;background:var(--ink-800);border:1px solid transparent;transition:border-color .2s var(--ease),transform .2s var(--ease);}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.poster:hover{border-color:var(--brand);transform:translateY(-4px);}
.poster:hover img{transform:scale(1.04);}
.poster-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;background:linear-gradient(180deg,rgba(11,13,16,0) 40%,rgba(11,13,16,.7) 100%);transition:opacity .2s var(--ease);}
.poster:hover .poster-play{opacity:1;}
.poster-play i{width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;}
.rail-card h3{margin-top:12px;font-size:15px;font-weight:600;line-height:1.5;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px;}
.rail-card .meta{margin-top:6px;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:8px;}
.rail-card .meta em{font-style:normal;color:var(--jade);display:flex;align-items:center;gap:5px;}
.rail-card .meta em::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--jade);}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:2fr 1fr;gap:32px;align-items:start;}
.feature-card{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--white);}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.feature-body{padding:22px 24px 26px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.04em;font-weight:600;background:var(--brand-soft);color:var(--brand);}
.badge-jade{background:rgba(18,179,154,.14);color:#0E8E7B;}
.badge-sand{background:rgba(217,178,106,.20);color:#8A6A28;}
.feature-card h3{margin-top:14px;font-size:22px;font-weight:800;line-height:1.4;}
.feature-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);}
.feature-flag{position:absolute;left:16px;top:16px;z-index:2;height:26px;padding:0 12px;border-radius:var(--r-chip);background:var(--sand);color:#3A2A08;font-size:12px;font-weight:700;display:flex;align-items:center;letter-spacing:.06em;}
.rank-list{border-top:1px solid var(--line);}
.rank-row{display:grid;grid-template-columns:34px 64px 1fr;gap:14px;align-items:center;padding:14px 10px 14px 4px;border-bottom:1px solid var(--line);transition:background .18s var(--ease),transform .18s var(--ease);}
.rank-row:hover{background:var(--paper-2);transform:translateX(4px);}
.rank-no{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text-3);letter-spacing:.02em;}
.rank-row.top .rank-no{color:var(--brand);}
.rank-thumb{width:64px;height:88px;border-radius:8px;object-fit:cover;background:var(--paper-2);}
.rank-info h4{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.rank-info .sub{margin-top:5px;font-size:12.5px;color:var(--text-3);display:flex;gap:10px;font-family:var(--mono);letter-spacing:.02em;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.post-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.post-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -20px rgba(11,13,16,.38);border-color:#D8D8D0;}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1;}
.post-body h3{margin-top:12px;font-size:17px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a:hover{color:var(--brand);}
.post-body p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:12.5px;color:var(--text-3);letter-spacing:.02em;}
.post-foot .go{color:var(--brand);font-family:var(--font);font-weight:600;transition:transform .18s var(--ease);}
.post-card:hover .post-foot .go{transform:translateX(3px);}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;background:var(--white);}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* ---------- list block ---------- */
.list-block{max-width:var(--container);margin:0 auto;padding:0 32px;}
.stat-rows{border-top:1px solid var(--line);}
.stat-row{display:grid;grid-template-columns:120px 1fr 200px;gap:28px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line);}
.stat-num{font-family:var(--mono);font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--brand);letter-spacing:.02em;line-height:1;}
.stat-row h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.stat-row p{font-size:15px;color:var(--text-2);line-height:1.75;}
.stat-note{font-size:13px;color:var(--text-3);text-align:right;font-family:var(--mono);letter-spacing:.02em;}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;font-size:17px;font-weight:600;transition:color .18s var(--ease);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq details[open] summary{color:var(--brand);}
.faq .plus{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .22s var(--ease);}
.faq .plus::before,.faq .plus::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq .plus::before{left:0;right:0;top:8px;height:2px;}
.faq .plus::after{top:0;bottom:0;left:8px;width:2px;}
.faq details[open] .plus{transform:rotate(45deg);}
.faq .answer{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:62em;}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--ink-900) url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;overflow:hidden;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(11,13,16,.96) 20%,rgba(11,13,16,.78) 100%);}
.cta-inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:72px 32px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:900;letter-spacing:-.02em;}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:34em;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{max-width:var(--container);margin:0 auto;padding:0 32px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand strong{display:block;color:#fff;font-size:16px;font-weight:700;margin-bottom:12px;letter-spacing:-.01em;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:26em;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.footer-chips a{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-chip);background:rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.74);transition:background .18s var(--ease),color .18s var(--ease);}
.footer-chips a:hover{background:var(--brand);color:#fff;}
.footer-bottom{max-width:var(--container);margin:48px auto 0;padding:22px 32px 32px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);}

/* ---------- mobile drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,13,16,.5);opacity:0;pointer-events:none;transition:opacity .24s var(--ease);z-index:90;}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--ink-900);z-index:95;transform:translateX(100%);transition:transform .26s var(--ease);padding:24px 22px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-head strong{color:#fff;font-size:15px;}
.drawer-head button{color:rgba(255,255,255,.7);width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line-dark);}
.drawer-group{margin-bottom:24px;}
.drawer-group h4{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.45);margin-bottom:12px;}
.drawer-group a{display:block;padding:11px 0;color:rgba(255,255,255,.86);font-size:15px;border-bottom:1px solid var(--line-dark);}
.drawer-group a.active{color:var(--brand);font-weight:700;}
.drawer .btn{width:100%;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .rail-card{flex-basis:calc((100% - 54px) / 3.5);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .container.wide{padding:0 24px;}
  .site-header .header-inner{padding:0 24px;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .nav-channels{display:none;}
  .menu-btn{display:flex;}
  .hero-inner{padding:130px 24px 48px;}
  .hero-arrows{right:24px;bottom:44px;}
  .rail-card{flex-basis:44vw;}
  .split{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .list-block{padding:0 24px;}
  .stat-row{grid-template-columns:90px 1fr;gap:18px;}
  .stat-note{text-align:left;grid-column:2;}
  .cta-inner{padding:56px 24px;}
  .footer-grid{padding:0 24px;grid-template-columns:1fr 1fr;}
  .footer-bottom{padding:20px 24px 30px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .site-header .header-inner{padding:0 20px;height:56px;gap:14px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{display:none;}
  .hero{min-height:62vh;}
  .hero-inner{padding:112px 20px 40px;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{height:44px;padding:0 18px;font-size:14px;}
  .hero-arrows{display:none;}
  .hero-meta{margin-top:24px;}
  .section{padding:48px 0;}
  .section.tight{padding:44px 0;}
  .rail-card{flex-basis:72vw;}
  .post-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .list-block{padding:0 20px;}
  .stat-row{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .stat-note{grid-column:1;}
  .cta-inner{padding:48px 20px;}
  .footer-grid{padding:0 20px;grid-template-columns:1fr;gap:28px;}
  .footer-bottom{padding:18px 20px 26px;flex-direction:column;}
  .search-wrap.open .search-field{width:150px;}
}
@media (max-width:520px){
  .rail-card{flex-basis:76vw;}
  .hero h1{letter-spacing:-.01em;}
  .search-wrap.open .search-field{width:120px;}
}

/* roulang page: article */
:root{
  --ink-900:#0B0D10;
  --ink-800:#14171C;
  --ink-700:#23272E;
  --paper:#FAFAF8;
  --paper-2:#F2F2ED;
  --white:#FFFFFF;
  --brand:#FF5A1F;
  --brand-press:#DE4410;
  --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A;
  --sand:#D9B26A;
  --text:#14171C;
  --text-2:#5B616B;
  --text-3:#9AA1AC;
  --line:#E6E6E1;
  --line-dark:rgba(255,255,255,.10);
  --radius:14px;
  --radius-sm:10px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.85;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input{font:inherit;color:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.015em;font-weight:800;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono);letter-spacing:.02em}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,250,248,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease)}
.site-header.is-scrolled{box-shadow:0 12px 34px -26px rgba(11,13,16,.65)}
.header-inner{max-width:1240px;margin:0 auto;padding:0 32px;height:64px;display:flex;align-items:center;gap:22px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--ink-900);color:#fff;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.08em;color:var(--text-3)}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-link{position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);transition:right .16s var(--ease)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{right:0}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{right:0}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-field{width:0;overflow:hidden;transition:width .26s var(--ease)}
.search-wrap.open .search-field{width:216px}
.search-field input{width:216px;height:40px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 12px;background:#fff;font-size:13.5px}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.icon-btn{width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.icon-btn:hover{background:var(--paper-2);border-color:#d6d6cf;color:var(--brand)}
.menu-btn{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-press);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--text)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--ink-900)}
.btn-ghost-light{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);transform:translateY(-1px)}
.arrow-r{transition:transform .2s var(--ease)}
a:hover > .arrow-r{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;font-weight:600;background:var(--brand-soft);color:var(--brand)}
.badge-jade{background:rgba(18,179,154,.14);color:#0d8b78}
.badge-sand{background:rgba(217,178,106,.2);color:#8a6a1f}
.chip{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px;color:var(--text-2);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.chip:hover{background:var(--paper-2);color:var(--ink-900);border-color:#d6d6cf}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;padding:34px 0 52px}
.article-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(180deg,rgba(11,13,16,.86) 0%,rgba(11,13,16,.94) 60%,rgba(11,13,16,1) 100%),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.9;pointer-events:none}
.article-hero::after{content:"";position:absolute;left:-10%;right:-10%;bottom:-120px;height:260px;background:radial-gradient(50% 100% at 18% 100%,rgba(255,90,31,.28),transparent 70%);pointer-events:none}
.article-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55)}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.28)}
.crumb-current{display:inline-block;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom;color:rgba(255,255,255,.86)}
.article-hero h1{margin:20px 0 18px;font-size:clamp(26px,3.6vw,40px);line-height:1.18;letter-spacing:-.02em;font-weight:800;max-width:26ch}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:rgba(255,255,255,.62)}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--jade);display:inline-block;margin-right:6px;vertical-align:middle}
.hero-meta .meta-item{display:inline-flex;align-items:center}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-tags a{display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;border:1px solid rgba(255,255,255,.16);font-size:12.5px;color:rgba(255,255,255,.78)}
.hero-tags a:hover{border-color:var(--brand);color:#fff;background:rgba(255,90,31,.16)}

/* ---------- 主体布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;align-items:start;padding-top:48px;padding-bottom:76px}
.article-main{min-width:0;max-width:800px}
.article-cover{margin:0 0 34px;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--text-3);padding:10px 16px;background:#fff;border-top:1px solid var(--line)}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16px;line-height:1.85;color:#242830}
.article-body > * + *{margin-top:1.1em}
.article-body h2{position:relative;margin-top:1.9em;padding-left:15px;font-size:26px;line-height:1.32;font-weight:800;letter-spacing:-.015em}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:20px;border-radius:2px;background:var(--brand)}
.article-body h3{margin-top:1.6em;font-size:19px;font-weight:700;line-height:1.4}
.article-body p{margin-top:1.1em}
.article-body ul,.article-body ol{padding-left:1.4em;margin-top:1.1em}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-family:var(--mono);font-weight:700}
.article-body a{color:var(--brand);border-bottom:1px solid var(--brand-soft)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body strong{font-weight:700;color:var(--ink-900)}
.article-body blockquote{margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--brand);background:var(--paper-2);border-radius:0 12px 12px 0;font-style:normal;color:#3b4149}
.article-body img{border-radius:12px;margin:1.5em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center}
.article-body code{font-family:var(--mono);font-size:14px;background:var(--ink-900);color:#fff;padding:2px 7px;border-radius:6px}
.article-body pre{margin:1.5em 0;padding:18px 20px;border-radius:12px;background:var(--ink-900);color:#f2f2ed;overflow-x:auto}
.article-body pre code{background:none;padding:0;font-size:13.5px;line-height:1.7}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:14.5px;margin:1.6em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:var(--paper-2);font-weight:700}
.article-body tbody tr:nth-child(odd){background:rgba(242,242,237,.5)}

.empty-state{margin:8px 0 0;padding:52px 24px;border:1px dashed var(--line);border-radius:var(--radius);background:#fff;text-align:center}
.empty-state .empty-title{font-size:18px;font-weight:700;color:var(--ink-900)}
.empty-state .empty-hint{margin-top:8px;font-size:14px;color:var(--text-2)}
.empty-state .btn{margin-top:20px}

/* ---------- 文末模块 ---------- */
.article-tags{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags h2{font-size:14px;letter-spacing:.08em;color:var(--text-2);font-weight:700;margin-bottom:14px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.article-foot-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:34px}
.foot-card{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.foot-card:hover{transform:translateY(-3px);border-color:#dedcd4;box-shadow:0 18px 40px -26px rgba(11,13,16,.42)}
.foot-card .foot-label{display:block;font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-bottom:8px}
.foot-card .foot-title{display:block;font-size:16px;font-weight:700;color:var(--ink-900);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.foot-card .foot-desc{margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.7}

.related-box{margin-top:52px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head .eyebrow{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--brand);margin-bottom:8px}
.section-head h2{font-size:24px;font-weight:800}
.section-head .more{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--brand)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.rel-card:hover{transform:translateY(-4px);border-color:#dedcd4;box-shadow:0 18px 40px -22px rgba(11,13,16,.38)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:16px 16px 18px}
.rel-body .badge{margin-bottom:10px}
.rel-title{font-size:16px;font-weight:700;line-height:1.45;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-desc{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{margin-top:12px;font-family:var(--mono);font-size:12.5px;color:var(--text-3)}
.back-row{margin-top:40px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.side-card h3{font-size:13px;letter-spacing:.08em;color:var(--text-2);font-weight:700;margin-bottom:14px}
.toc-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;padding:7px 0 7px 12px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;border-radius:0 6px 6px 0}
.toc-list a:hover{background:var(--paper-2);color:var(--ink-900)}
.toc-list a.active{color:var(--ink-900);font-weight:600;border-left-color:var(--brand)}
.rank-list{list-style:none;padding:0}
.rank-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);transition:background .2s var(--ease),transform .2s var(--ease)}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:var(--paper-2);transform:translateX(4px)}
.rank-num{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--text-3);min-width:26px;line-height:1.5}
.rank-item:nth-child(-n+3) .rank-num{color:var(--brand)}
.rank-body a{display:block;font-size:14.5px;font-weight:600;color:var(--ink-900)}
.rank-body a:hover{color:var(--brand)}
.rank-body span{display:block;margin-top:3px;font-size:12.5px;color:var(--text-3)}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-900);color:#fff;padding:64px 0}
.cta-inner{border:1px solid rgba(255,255,255,.10);border-radius:16px;padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:44px 44px}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.02em}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.66);max-width:52ch}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#fff;padding:64px 0 0}
.footer-grid{max-width:1240px;margin:0 auto;padding:0 32px 48px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand strong{font-size:17px;font-weight:800;letter-spacing:-.01em}
.footer-brand p{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.58);max-width:34ch}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.5);font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.76)}
.footer-col ul a:hover{color:var(--brand)}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.footer-chips a{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.14);font-size:12.5px;color:rgba(255,255,255,.7)}
.footer-chips a:hover{border-color:var(--brand);color:#fff;background:rgba(255,90,31,.16)}
.footer-bottom{max-width:1240px;margin:0 auto;padding:20px 32px 26px;border-top:1px solid var(--line-dark);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.45)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,13,16,.5);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;z-index:90;transform:translateX(100%);transition:transform .28s var(--ease);padding:26px 22px;overflow-y:auto}
.nav-drawer.open{transform:none}
.nav-drawer h4{font-size:12.5px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px}
.nav-drawer a.drawer-link{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-size:15.5px;font-weight:600;color:var(--ink-900)}
.nav-drawer a.drawer-link:hover{color:var(--brand)}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{gap:40px}
}
@media (max-width:1023px){
  .header-inner{padding:0 24px}
  .container{padding:0 24px}
  .footer-grid{padding:0 24px 40px;grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{padding:18px 24px 24px}
  .nav-channels{display:none}
  .menu-btn{display:grid}
  .article-layout{grid-template-columns:1fr;gap:34px;padding-top:36px;padding-bottom:56px}
  .article-side{position:static}
  .article-main{max-width:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{padding:34px 26px}
}
@media (max-width:767px){
  .header-inner{padding:0 20px;height:60px;gap:14px}
  .container{padding:0 20px}
  .brand-text em{display:none}
  .search-wrap.open .search-field{width:132px}
  .search-field input{width:132px;height:38px}
  .article-hero{padding:24px 0 40px}
  .article-hero h1{font-size:clamp(24px,6.4vw,30px);max-width:none}
  .crumb-current{max-width:28ch}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:17.5px}
  .article-foot-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:0 20px 34px}
  .footer-bottom{padding:16px 20px 22px;flex-direction:column;gap:8px}
  .cta-band{padding:48px 0}
  .cta-inner{padding:28px 22px;flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#14171C;
  --ink-700:#23272E;
  --paper:#FAFAF8;
  --paper-2:#F2F2ED;
  --white:#FFFFFF;
  --brand:#FF5A1F;
  --brand-press:#DE4410;
  --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A;
  --sand:#D9B26A;
  --text:#14171C;
  --text-2:#5B616B;
  --text-3:#9AA1AC;
  --line:#E6E6E1;
  --line-dark:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-poster:12px;
  --radius-btn:10px;
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--paper);
  -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;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25;}
p{margin:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.hidden{display:none;}
@media (min-width:640px){.sm\:inline-flex{display:inline-flex;}}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--paper-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.eyebrow{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--text-3);text-transform:uppercase;margin-bottom:10px;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);}
.section-head h2::before{content:"";display:inline-block;width:3px;height:20px;background:var(--brand);border-radius:2px;margin-right:12px;vertical-align:-3px;}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:760px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;transition:color .18s var(--ease);}
.link-more svg{transition:transform .18s var(--ease);}
.link-more:hover{color:var(--brand-press);}
.link-more:hover svg{transform:translateX(3px);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-press);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border:1px solid var(--line);color:var(--ink-900);background:transparent;}
.btn-outline:hover{background:var(--paper-2);border-color:var(--ink-900);}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.10);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:80;background:var(--ink-900);border-bottom:1px solid rgba(255,255,255,.08);
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);}
.site-header.scrolled{background:rgba(250,250,248,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(11,13,16,.6);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;max-width:var(--container);margin:0 auto;padding:0 32px;
  transition:height .24s var(--ease);}
.site-header.scrolled .header-inner{height:58px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  font-family:var(--mono);font-size:14px;font-weight:700;letter-spacing:.02em;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;transition:color .24s var(--ease);}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.08em;color:var(--text-3);}
.site-header.scrolled .brand-text strong{color:var(--ink-900);}
.nav-channels{display:flex;align-items:center;gap:2px;}
.nav-link{position:relative;padding:10px 12px;font-size:15px;color:rgba(255,255,255,.76);border-radius:8px;
  transition:color .18s var(--ease),background-color .18s var(--ease);}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .16s var(--ease);}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.site-header.scrolled .nav-link{color:var(--text-2);}
.site-header.scrolled .nav-link:hover,
.site-header.scrolled .nav-link.active{color:var(--ink-900);}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;color:#fff;
  transition:background-color .18s var(--ease),color .18s var(--ease);}
.icon-btn:hover{background:rgba(255,255,255,.10);}
.site-header.scrolled .icon-btn{color:var(--ink-900);}
.site-header.scrolled .icon-btn:hover{background:var(--paper-2);}
.search-wrap{display:flex;align-items:center;}
.search-field{width:0;overflow:hidden;transition:width .26s var(--ease);}
.search-wrap.open .search-field{width:220px;}
.search-field input{width:100%;height:38px;padding:0 12px;border-radius:10px;font-size:13px;outline:none;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;}
.search-field input::placeholder{color:rgba(255,255,255,.5);}
.site-header.scrolled .search-field input{background:var(--white);border-color:var(--line);color:var(--text);}
.site-header.scrolled .search-field input::placeholder{color:var(--text-3);}
.search-field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.menu-btn{display:none;}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none;}
.drawer-mask{position:absolute;inset:0;background:rgba(11,13,16,.5);opacity:0;transition:opacity .24s var(--ease);}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:84%;max-width:340px;background:var(--paper);
  transform:translateX(100%);transition:transform .28s var(--ease);padding:20px;overflow-y:auto;}
.drawer.open{pointer-events:auto;}
.drawer.open .drawer-mask{opacity:1;}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-head strong{font-size:16px;}
.drawer .icon-btn{color:var(--ink-900);width:34px;height:34px;font-size:22px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;border-bottom:1px solid var(--line);}
.drawer-nav a{padding:12px 4px;font-size:16px;font-weight:600;color:var(--text-2);border-radius:8px;}
.drawer-nav a.active{color:var(--brand);}
.drawer-group{padding:18px 0;border-bottom:1px solid var(--line);}
.drawer-group h5{font-size:12px;letter-spacing:.1em;color:var(--text-3);margin-bottom:12px;font-weight:600;}
.drawer-search{padding-top:18px;}
.drawer-search input{width:100%;height:44px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--white);font-size:14px;outline:none;}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}

/* 分类头 */
.cat-hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;isolation:isolate;}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.40;z-index:0;}
.cat-hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(11,13,16,.68) 0%,rgba(11,13,16,.82) 52%,rgba(11,13,16,.96) 100%);}
.cat-hero-inner{position:relative;z-index:2;padding:52px 32px 56px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:20px;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.3);}
.breadcrumb .current{color:rgba(255,255,255,.9);}
.cat-badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,90,31,.16);border:1px solid rgba(255,90,31,.42);color:#FFB392;
  font-size:12px;letter-spacing:.06em;margin-bottom:18px;}
.cat-hero h1{font-size:clamp(30px,4.4vw,42px);font-weight:900;letter-spacing:-.02em;line-height:1.18;}
.cat-sub{margin-top:16px;font-size:16px;color:rgba(255,255,255,.74);max-width:760px;}
.cat-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:26px;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.02em;}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;font-size:13px;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.82);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.chip:hover{background:rgba(255,255,255,.10);color:#fff;}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.chips--light .chip{border-color:var(--line);color:var(--text-2);background:var(--white);}
.chips--light .chip:hover{background:var(--paper-2);color:var(--ink-900);}
.chips--light .chip.active{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}

/* 海报网格 */
.poster-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.poster-card{position:relative;display:block;border-radius:var(--radius-poster);overflow:hidden;background:var(--ink-800);
  border:1px solid var(--line);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.poster-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(11,13,16,.42);border-color:var(--brand);}
.poster-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.poster-card:hover img{transform:scale(1.04);}
.poster-card::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(11,13,16,0) 34%,rgba(11,13,16,.55) 66%,rgba(11,13,16,.9) 100%);}
.poster-card--lead{grid-column:span 2;aspect-ratio:16/10;}
.poster-card--fill{height:100%;min-height:300px;}
.poster-card--tall{aspect-ratio:2/3;}
.poster-rank{position:absolute;top:12px;left:12px;z-index:3;font-family:var(--mono);font-size:12px;letter-spacing:.04em;
  padding:4px 10px;border-radius:999px;background:rgba(11,13,16,.62);border:1px solid rgba(255,255,255,.18);color:#fff;}
.poster-rank.hot{background:var(--sand);border-color:var(--sand);color:#3A2A0B;font-weight:700;}
.poster-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px;color:#fff;}
.poster-tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:12px;
  background:var(--brand-soft);color:#FFB392;border:1px solid rgba(255,90,31,.36);letter-spacing:.04em;}
.poster-tag--jade{background:rgba(18,179,154,.16);color:#7FE4D3;border-color:rgba(18,179,154,.4);}
.poster-title{margin-top:10px;font-size:17px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.poster-card--lead .poster-title{font-size:clamp(19px,2vw,23px);}
.poster-meta{margin-top:8px;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.72);letter-spacing:.02em;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.step{border-top:2px solid var(--line);padding-top:18px;transition:border-color .22s var(--ease);}
.step:hover{border-top-color:var(--brand);}
.step-num{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--brand);letter-spacing:.02em;line-height:1;}
.step h3{margin-top:12px;font-size:18px;}
.step p{margin-top:10px;font-size:15px;color:var(--text-2);}

/* 状态速查 */
.status-list{border-top:1px solid var(--line);}
.status-row{display:grid;grid-template-columns:110px 1fr auto;gap:24px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background-color .18s var(--ease),padding-left .18s var(--ease);}
.status-row:hover{background:var(--paper-2);padding-left:16px;}
.status-num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;line-height:1;}
.status-main h3{font-size:17px;font-weight:700;}
.status-main p{margin-top:6px;font-size:14px;color:var(--text-2);}
.status-tag{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(18,179,154,.12);color:#0C8A78;border:1px solid rgba(18,179,154,.3);}
.status-tag.warn{background:var(--brand-soft);color:var(--brand-press);border-color:rgba(255,90,31,.3);}
.status-tag .dot{width:6px;height:6px;border-radius:50%;background:currentColor;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
  transition:color .18s var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item[open] summary{color:var(--brand);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .22s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-icon::before{left:50%;top:3px;width:2px;height:16px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:3px;height:2px;width:16px;transform:translateY(-50%);}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{padding:0 4px 22px;max-width:880px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* CTA */
.cta-band{background:var(--ink-900);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:48px 48px;}
.cta-inner{position:relative;z-index:2;padding:72px 0;}
.cta-box{border:1px solid rgba(255,90,31,.35);border-radius:var(--radius-card);padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);}
.cta-box p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 分页 */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:40px;}
.page-btn{display:grid;place-items:center;min-width:36px;height:36px;padding:0 10px;border-radius:8px;
  border:1px solid var(--line);font-size:14px;color:var(--text-2);background:var(--white);
  font-family:var(--mono);transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.page-btn:hover{background:var(--paper-2);color:var(--ink-900);}
.page-btn.current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;font-weight:700;}
.page-btn.disabled{opacity:.45;pointer-events:none;}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding-top:64px;}
.footer-grid{max-width:var(--container);margin:0 auto;padding:0 32px 48px;display:grid;
  grid-template-columns:1.6fr 1fr 1.3fr 1fr;gap:40px;}
.footer-brand strong{display:block;font-size:17px;color:#fff;font-weight:700;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s var(--ease);}
.footer-col ul a:hover{color:var(--brand);}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.footer-chips a{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;font-size:13px;
  border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.7);transition:all .18s var(--ease);}
.footer-chips a:hover{border-color:var(--brand);color:#fff;background:rgba(255,90,31,.14);}
.footer-bottom{max-width:var(--container);margin:0 auto;padding:20px 32px 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);border-top:1px solid rgba(255,255,255,.10);}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* 响应式 */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1.3fr;}
  .footer-grid .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .cat-hero-inner{padding:44px 24px 48px;}
  .section{padding:64px 0;}
  .nav-channels{display:none;}
  .menu-btn{display:grid;}
  .poster-grid{grid-template-columns:repeat(2,1fr);}
  .poster-card--lead{grid-column:span 2;aspect-ratio:16/9;}
  .poster-card--fill{min-height:260px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px;}
  .status-row{grid-template-columns:80px 1fr;gap:16px;}
  .status-row .status-tag{grid-column:2;justify-self:start;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:0 24px 40px;}
  .footer-grid .footer-col:last-child{grid-column:span 2;}
  .footer-bottom{padding:20px 24px 28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;gap:14px;height:60px;}
  .site-header.scrolled .header-inner{height:54px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{font-size:9px;}
  .search-wrap.open .search-field{width:150px;}
  .cat-hero-inner{padding:36px 20px 40px;}
  .cat-meta{gap:16px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .poster-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .poster-card--lead{grid-column:span 2;aspect-ratio:16/10;}
  .poster-body{padding:14px;}
  .poster-title{font-size:15px;}
  .steps{grid-template-columns:1fr;gap:20px;}
  .status-row{padding:18px 4px;grid-template-columns:64px 1fr;gap:14px;}
  .status-num{font-size:24px;}
  .cta-box{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:0 20px 32px;}
  .footer-grid .footer-col:last-child{grid-column:span 1;}
  .footer-bottom{padding:18px 20px 24px;flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#14171C;
  --ink-700:#23272E;
  --paper:#FAFAF8;
  --paper-2:#F2F2ED;
  --white:#FFFFFF;
  --brand:#FF5A1F;
  --brand-press:#DE4410;
  --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A;
  --sand:#D9B26A;
  --text:#14171C;
  --text-2:#5B616B;
  --text-3:#9AA1AC;
  --line:#E6E6E1;
  --line-dark:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-media:12px;
  --radius-btn:10px;
  --shadow-hover:0 18px 40px -20px rgba(11,13,16,.38);
  --ease:cubic-bezier(.22,.61,.36,1);
  --w:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25}
p{margin:0}
input{font-family:inherit}
.mono{font-family:ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;letter-spacing:.02em}
.container{width:100%;max-width:var(--w);margin:0 auto;padding-left:32px;padding-right:32px}
.section{padding:88px 0}
.section-alt{background:var(--paper-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.eyebrow{
  display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-3);font-weight:700;margin-bottom:10px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
}
.h2{font-size:clamp(22px,2.4vw,28px);position:relative;padding-left:16px}
.h2::before{content:"";position:absolute;left:0;top:.18em;width:3px;height:.86em;background:var(--brand);border-radius:2px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-2);white-space:nowrap;transition:color .2s var(--ease)}
.link-more:hover{color:var(--brand)}
.link-more svg{transition:transform .2s var(--ease)}
.link-more:hover svg{transform:translateX(2px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 28px -22px rgba(11,13,16,.5);background:rgba(250,250,248,.96)}
.header-inner{
  width:100%;max-width:var(--w);margin:0 auto;
  padding:0 32px;height:66px;
  display:flex;align-items:center;gap:26px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:58px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(150deg,var(--brand),#FF8A3D);
  color:#fff;font-weight:900;font-size:15px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900)}
.brand-text em{font-style:normal;font-size:10.5px;letter-spacing:.08em;color:var(--text-3);margin-top:2px}
.nav-channels{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--text-2);
  padding:6px 0;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);transition:width .18s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink-900);font-weight:800}
.nav-link.active::after{width:100%}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);color:var(--ink-900);border-color:var(--line)}
.icon-btn:focus-visible,.btn:focus-visible,.chip:focus-visible,a:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-field{
  width:0;overflow:hidden;opacity:0;
  transition:width .24s var(--ease),opacity .24s var(--ease);
}
.search-wrap.is-open .search-field{width:230px;opacity:1}
.search-field input{
  width:100%;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);
  padding:0 14px;font-size:14px;color:var(--ink-900);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px var(--brand-soft);
}
.menu-btn{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:47px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand)}
.btn-primary:hover{background:var(--brand-press);border-color:var(--brand-press);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink-900);border:1px solid var(--line)}
.btn-outline:hover{background:var(--paper-2);border-color:var(--ink-900)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.10)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,13,16,.5);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--paper);z-index:90;padding:18px 20px 32px;
  transform:translateX(102%);transition:transform .26s var(--ease);
  overflow-y:auto;border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:15.5px;font-weight:800;flex:1}
.drawer-nav{display:flex;flex-direction:column;margin-top:10px}
.drawer-link{padding:13px 0;font-size:15.5px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--brand)}
.drawer-block{margin-top:22px}
.drawer-block h4{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:12px;font-weight:700}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px}
.drawer-chips a{
  font-size:12px;padding:6px 12px;border-radius:999px;background:var(--paper-2);
  color:var(--text-2);border:1px solid var(--line);transition:background .18s var(--ease),color .18s var(--ease);
}
.drawer-chips a:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(11,13,16,.42) 0%,rgba(11,13,16,.72) 55%,rgba(11,13,16,.94) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero-inner{padding:58px 0 62px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(255,255,255,.4)}
.cat-hero h1{font-size:clamp(28px,3.6vw,40px);line-height:1.15;font-weight:900;max-width:16em}
.cat-hero .hero-sub{margin-top:16px;font-size:16.5px;color:rgba(255,255,255,.78);max-width:44em;line-height:1.8}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:26px;
  font-size:13px;color:rgba(255,255,255,.66);
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.03em;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--jade);display:inline-block}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ---------- layout ---------- */
.cat-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start;
  padding:56px 0 84px;
}
.filter-panel{position:sticky;top:92px}
.filter-title{font-size:12px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:14px}
.filter-chips{display:flex;flex-direction:column;gap:6px}
.chip{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--white);color:var(--text-2);font-size:14px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  text-align:left;
}
.chip:hover{background:var(--paper-2);color:var(--ink-900)}
.chip.active{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}
.chip .count{font-size:12px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--text-3)}
.chip.active .count{color:rgba(255,255,255,.7)}
.filter-divider{height:1px;background:var(--line);margin:22px 0}
.panel-note{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:16px 16px 18px}
.panel-note h4{font-size:13px;font-weight:800;margin-bottom:10px}
.panel-note dl{margin:0;font-size:13px;color:var(--text-2)}
.panel-note dt{color:var(--text-3);font-size:12px;margin-top:8px}
.panel-note dd{margin:2px 0 0;font-weight:600;color:var(--ink-900)}

/* ---------- list cards ---------- */
.list-area{min-width:0}
.list-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:22px}
.list-head h2{font-size:22px}
.list-head p{font-size:13.5px;color:var(--text-3)}
.dl-card{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.dl-card + .dl-card{margin-top:20px}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#dcdcd4}
.dl-card__media{
  position:relative;overflow:hidden;border-radius:var(--radius-media);
  aspect-ratio:8/5;background:var(--paper-2);
}
.dl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease)}
.dl-card:hover .dl-card__media img{transform:scale(1.04)}
.dl-card__body{display:flex;flex-direction:column;gap:9px;min-width:0}
.dl-card__top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
}
.badge-jade{background:rgba(18,179,154,.12);color:#0E8E7C}
.badge-sand{background:rgba(217,178,106,.18);color:#8A6A22}
.meta-mono{font-size:12.5px;color:var(--text-3);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.02em}
.dl-card h3{font-size:17px;line-height:1.45;font-weight:800}
.dl-card h3 a{transition:color .18s var(--ease)}
.dl-card h3 a:hover{color:var(--brand)}
.dl-card p{font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.spec-row{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:2px}
.spec-row li{font-size:12.5px;color:var(--text-3);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.02em}
.list-empty{
  display:none;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:44px 20px;text-align:center;color:var(--text-3);font-size:14px;background:var(--white);
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;position:relative;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:26px;font-weight:700;color:var(--brand);letter-spacing:.02em;line-height:1;
}
.step h3{margin-top:14px;font-size:17px}
.step p{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:17px;font-weight:700;color:var(--ink-900);
  cursor:pointer;transition:color .18s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq details[open] summary{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq details[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 0 24px;font-size:15px;color:var(--text-2);max-width:64em;line-height:1.85}

/* ---------- cta ---------- */
.cta-band{background:var(--paper-2);padding:0}
.cta-inner{
  margin:0 auto;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-box{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--white);padding:46px 44px;overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(11,13,16,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(11,13,16,.05) 1px,transparent 1px);
  background-size:34px 34px;opacity:.5;
}
.cta-box h2{font-size:clamp(24px,3vw,34px);position:relative;z-index:1}
.cta-box p{margin-top:14px;font-size:15.5px;color:var(--text-2);position:relative;z-index:1;max-width:40em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{
  width:100%;max-width:var(--w);margin:0 auto;padding:0 32px 52px;
  display:grid;grid-template-columns:1.6fr 1fr 1.4fr 1.2fr;gap:40px;
}
.footer-brand strong{display:block;font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-brand p{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:30em}
.footer-col h4{font-size:13px;font-weight:800;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.66);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.footer-chips a{
  font-size:12px;padding:5px 11px;border-radius:999px;
  border:1px solid var(--line-dark);color:rgba(255,255,255,.68);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.footer-chips a:hover{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.22)}
.footer-bottom{
  width:100%;max-width:var(--w);margin:0 auto;padding:20px 32px 26px;
  border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.5);
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.reveal-init{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal-init.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .header-inner,.container{padding-left:26px;padding-right:26px}
  .footer-grid{padding-left:26px;padding-right:26px}
  .footer-bottom{padding-left:26px;padding-right:26px}
  .nav-channels{gap:18px}
}
@media (max-width:1023px){
  .nav-channels{display:none}
  .menu-btn{display:inline-flex}
  .search-wrap.is-open .search-field{width:170px}
  .section{padding:64px 0}
  .cat-layout{grid-template-columns:1fr;gap:28px;padding:44px 0 64px}
  .filter-panel{position:static}
  .filter-chips{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .filter-chips::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto;white-space:nowrap}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-box{padding:38px 28px}
}
@media (max-width:767px){
  .header-inner,.container{padding-left:20px;padding-right:20px}
  .footer-grid{padding-left:20px;padding-right:20px;grid-template-columns:1fr}
  .footer-bottom{padding-left:20px;padding-right:20px;flex-direction:column}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .nav-tools .btn{display:none}
  .search-wrap.is-open .search-field{width:132px}
  .section{padding:48px 0}
  .cat-hero-inner{padding:40px 0 46px}
  .cat-layout{padding:34px 0 52px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .dl-card{grid-template-columns:1fr;gap:14px;padding:14px}
  .dl-card__media{aspect-ratio:16/9}
  .steps{grid-template-columns:1fr}
  .faq summary{font-size:16px;padding:18px 0}
  .cta-box{padding:30px 20px}
  .hero-meta{gap:14px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
}
@media (max-width:519px){
  .cat-hero h1{font-size:27px}
  .h2{font-size:21px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal-init{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink-900:#0B0D10; --ink-800:#14171C; --ink-700:#23272E;
  --paper:#FAFAF8; --paper-2:#F2F2ED; --white:#FFFFFF;
  --brand:#FF5A1F; --brand-press:#DE4410; --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A; --sand:#D9B26A;
  --text:#14171C; --text-2:#5B616B; --text-3:#9AA1AC;
  --line:#E6E6E1; --line-dark:rgba(255,255,255,.10);
  --radius:14px; --radius-sm:10px; --radius-pill:999px;
  --shadow-hover:0 18px 40px -20px rgba(11,13,16,.38);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.mono{font-family:var(--mono);letter-spacing:.02em}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,250,248,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 30px -24px rgba(11,13,16,.6)}
.header-inner{
  max-width:1320px;margin:0 auto;padding:0 32px;height:72px;
  display:flex;align-items:center;gap:26px;
  transition:height .24s var(--ease);
}
.site-header.scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink-900);color:#fff;
  display:grid;place-items:center;font-family:var(--mono);font-size:14px;font-weight:700;
  box-shadow:inset 0 -3px 0 0 var(--brand);
}
.brand-text strong{display:block;font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-text em{display:block;font-style:normal;font-size:10px;letter-spacing:.09em;color:var(--text-3);font-family:var(--mono)}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .2s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  color:var(--text-2);border:1px solid transparent;transition:.2s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);color:var(--text)}
.menu-btn{display:none}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-field{width:0;opacity:0;overflow:hidden;transition:width .26s var(--ease),opacity .2s var(--ease)}
.search-wrap.open .search-field{width:228px;opacity:1}
.search-field input{
  width:100%;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--white);padding:0 12px;font-size:14px;color:var(--text);
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-press);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--ink-900)}
.btn-dark-ghost{border-color:rgba(255,255,255,.42);color:#fff}
.btn-dark-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.nav-cta{display:none}
@media(min-width:640px){.nav-cta{display:inline-flex}}

/* ---------- 分类头 ---------- */
.cat-hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden}
.cat-hero-media{position:absolute;inset:0;background:url("/assets/images/backpic/back-2.png") center/cover no-repeat}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,.58) 0%,rgba(11,13,16,.86) 58%,rgba(11,13,16,.97) 100%);
}
.cat-hero-inner{position:relative;z-index:1;padding:74px 0 58px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:rgba(255,255,255,.35)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:#FF8A5C;font-size:12px;letter-spacing:.08em;font-weight:600;margin-bottom:20px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--jade);display:inline-block}
.cat-title{font-size:clamp(30px,4.6vw,46px);line-height:1.12;font-weight:900}
.cat-title-main{display:block;font-size:clamp(16px,2vw,20px);font-weight:600;color:rgba(255,255,255,.7);letter-spacing:.02em;margin-bottom:8px}
.cat-title-sub{display:block}
.cat-lead{margin-top:18px;max-width:720px;font-size:16.5px;color:rgba(255,255,255,.76);line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:26px;font-family:var(--mono);font-size:12.5px;color:rgba(255,255,255,.55)}
.hero-meta b{color:#fff;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:13px;border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.04);transition:.2s var(--ease);cursor:pointer;
}
.chip:hover{background:rgba(255,255,255,.12);color:#fff}
.chip.active{background:#fff;color:var(--ink-900);border-color:#fff;font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--alt{background:var(--paper-2)}
.section--white{background:var(--white)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--brand);margin-bottom:10px}
.section-head h2{font-size:clamp(22px,2.6vw,28px)}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--text-2);max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);white-space:nowrap;transition:.2s var(--ease)}
.link-more:hover{color:var(--brand);gap:11px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:1080px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;top:8px;bottom:8px;left:50%;width:1px;
  background:var(--line);transform:translateX(-.5px);
}
.tl-item{display:grid;grid-template-columns:1fr 76px 1fr;align-items:start;margin-bottom:38px}
.tl-item:last-child{margin-bottom:0}
.tl-axis{grid-column:2;grid-row:1;display:flex;justify-content:center;padding-top:32px}
.tl-dot{width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.tl-item--left .tl-card{grid-column:1;grid-row:1}
.tl-item--right .tl-card{grid-column:3;grid-row:1}
.tl-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:#DCDBD4;box-shadow:var(--shadow-hover)}
.tl-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tl-date{font-family:var(--mono);font-size:12.5px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.05em;font-weight:600;background:var(--brand-soft);color:var(--brand);
}
.tl-card h3{font-size:18px;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.82}
.tl-thumb{margin-top:16px;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--paper-2)}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.tl-card:hover .tl-thumb img{transform:scale(1.04)}
.tl-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);transition:gap .2s var(--ease)}
.tl-link:hover{gap:11px}

/* ---------- 能力列表 ---------- */
.stat-rows{border-top:1px solid var(--line)}
.stat-row{
  display:grid;grid-template-columns:118px 1fr;gap:30px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.stat-num{font-family:var(--mono);font-size:34px;line-height:1;color:var(--brand);transition:color .2s var(--ease)}
.stat-row:hover .stat-num{color:var(--ink-900)}
.stat-row h3{font-size:18px;margin-bottom:6px}
.stat-row p{font-size:15px;color:var(--text-2)}

/* ---------- 场景卡片 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-card{
  display:flex;gap:16px;align-items:flex-start;padding:24px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:#DCDBD4;box-shadow:var(--shadow-hover)}
.scene-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-family:var(--mono);font-size:14px;font-weight:700;
}
.scene-card h3{font-size:17px;margin-bottom:6px}
.scene-card p{font-size:14.5px;color:var(--text-2);line-height:1.78}

/* ---------- 步骤条 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.steps::before{content:"";position:absolute;top:7px;left:6%;right:6%;height:1px;background:#DFDED7}
.step{position:relative;padding:0 18px 0 0}
.step-dot{width:15px;height:15px;border-radius:50%;border:2px solid var(--brand);background:var(--paper-2);margin-bottom:20px;position:relative;z-index:1}
.step-num{font-family:var(--mono);font-size:12px;letter-spacing:.09em;color:var(--text-3)}
.step h3{font-size:16px;margin:7px 0 7px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 2px;font-size:17px;font-weight:600;transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq details[open] summary{color:var(--brand)}
.faq .plus{position:relative;flex:0 0 auto;width:22px;height:22px;transition:transform .24s var(--ease)}
.faq .plus::before,.faq .plus::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq .plus::before{left:0;right:0;top:10px;height:1.6px}
.faq .plus::after{top:0;bottom:0;left:10px;width:1.6px}
.faq details[open] .plus{transform:rotate(45deg)}
.faq-body{padding:0 2px 26px;max-width:840px;font-size:15.5px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--white);
  border:1px solid var(--line);border-radius:18px;padding:52px 48px;
}
.cta-band::after{content:"";position:absolute;inset:14px;border:1px solid var(--brand-soft);border-radius:12px;pointer-events:none}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);max-width:560px}
.cta-band p{margin-top:14px;max-width:600px;font-size:15.5px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:66px 0 0;margin-top:0}
.footer-grid{
  max-width:1240px;margin:0 auto;padding:0 32px 50px;
  display:grid;grid-template-columns:1.6fr 1fr 1.4fr 1fr;gap:40px;
}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58)}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.footer-chips a{
  font-size:12.5px;padding:6px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.7);
  transition:.2s var(--ease);
}
.footer-chips a:hover{background:rgba(255,255,255,.1);color:#fff}
.footer-bottom{
  max-width:1240px;margin:0 auto;padding:20px 32px 34px;
  border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,13,16,.5);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,344px);z-index:120;
  background:var(--ink-900);color:#fff;padding:22px 24px 40px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s var(--ease);
}
.drawer.open{transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-top strong{font-size:15px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 2px;border-bottom:1px solid var(--line-dark);
  font-size:16px;color:rgba(255,255,255,.84);
}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-title{margin:26px 0 12px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:rgba(255,255,255,.42)}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px}
.drawer-chips a{
  font-size:12.5px;padding:6px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.72);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1279px){
  .header-inner{padding:0 24px}
  .nav-link{padding:9px 10px;font-size:14.5px}
}
@media(max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .nav-channels{display:none}
  .menu-btn{display:grid}
  .search-wrap.open .search-field{width:180px}
  .cat-hero-inner{padding:56px 0 48px}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps::before{display:none}
  .step{padding-right:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:0 24px 42px}
  .footer-bottom{padding:20px 24px 30px}
  .cta-band{padding:40px 32px}
}
@media(max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .header-inner{height:62px;padding:0 20px;gap:14px}
  .site-header.scrolled .header-inner{height:56px}
  .brand-text strong{font-size:15px}
  .search-wrap{display:none}
  .cat-hero-inner{padding:44px 0 40px}
  .cat-lead{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .timeline::before{left:9px;transform:none}
  .tl-item{display:block;position:relative;padding-left:32px;margin-bottom:26px}
  .tl-axis{position:absolute;left:0;top:30px;padding-top:0;width:19px;justify-content:flex-start}
  .tl-dot{margin-left:5px}
  .tl-card{grid-column:auto}
  .tl-card{padding:20px}
  .stat-row{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .stat-num{font-size:26px}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:24px}
  .step{display:grid;grid-template-columns:22px 1fr;column-gap:14px}
  .step-dot{grid-row:1/4;margin:4px 0 0}
  .step-num,.step h3,.step p{grid-column:2}
  .step h3{margin:4px 0 6px}
  .faq summary{font-size:16px;padding:20px 2px}
  .cta-band{padding:32px 22px}
  .cta-band::after{inset:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-col h4{margin-bottom:12px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#14171C;
  --ink-700:#23272E;
  --paper:#FAFAF8;
  --paper-2:#F2F2ED;
  --white:#FFFFFF;
  --brand:#FF5A1F;
  --brand-press:#DE4410;
  --brand-soft:rgba(255,90,31,.12);
  --jade:#12B39A;
  --sand:#D9B26A;
  --text:#14171C;
  --text-2:#5B616B;
  --text-3:#9AA1AC;
  --line:#E6E6E1;
  --line-dark:rgba(255,255,255,.10);
  --r-card:14px;
  --r-poster:12px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-hover:0 18px 40px -20px rgba(11,13,16,.38);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--ink-900)}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 32px;height:64px;
  display:flex;align-items:center;gap:24px;
  transition:height .24s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font:700 13px/1 var(--mono);letter-spacing:.02em;
  box-shadow:0 8px 18px -10px rgba(255,90,31,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:-.01em;transition:color .24s var(--ease)}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.08em;color:rgba(255,255,255,.6);transition:color .24s var(--ease)}
.nav-channels{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;font-weight:500;
  color:rgba(255,255,255,.82);border-radius:8px;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .16s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:#fff;font-weight:700}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  border:1px solid rgba(255,255,255,.22);color:#fff;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14)}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-field{width:0;overflow:hidden;transition:width .26s var(--ease)}
.search-wrap.open .search-field{width:230px}
.search-field input{
  width:100%;height:38px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);color:var(--text);
  font-size:14px;outline:none;
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-press);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border:1px solid var(--line);color:var(--ink-900);background:transparent}
.btn-outline:hover{background:var(--paper-2);border-color:var(--ink-900)}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.10)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.menu-btn{display:none}

.site-header.is-scrolled{background:rgba(250,250,248,.94);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line),0 12px 30px -24px rgba(11,13,16,.55)}
.site-header.is-scrolled .header-inner{height:56px}
.site-header.is-scrolled .brand-text strong{color:var(--ink-900)}
.site-header.is-scrolled .brand-text em{color:var(--text-3)}
.site-header.is-scrolled .nav-link{color:var(--text-2)}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.active{color:var(--ink-900)}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--ink-900)}
.site-header.is-scrolled .icon-btn:hover{background:var(--paper-2)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,13,16,.5);z-index:90;opacity:0;pointer-events:none;transition:opacity .24s var(--ease)}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:95;
  background:var(--white);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:18px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head strong{font-size:16px;font-weight:800;color:var(--ink-900)}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-900);font-size:20px;line-height:1}
.drawer-search input{width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--paper-2);font-size:14px;outline:none}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);background:var(--white)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{padding:13px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px}
.drawer-chips a{font-size:12px;letter-spacing:.04em;padding:6px 12px;border-radius:999px;background:var(--paper-2);color:var(--text-2)}
.drawer-chips a:hover{background:var(--ink-900);color:#fff}

/* ---------- 分类头 ---------- */
.cat-hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;padding:140px 0 68px}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.45}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,.72) 0%,rgba(11,13,16,.86) 48%,rgba(11,13,16,.97) 100%);
}
.cat-hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px}
.breadcrumb a:hover{color:#fff}
.breadcrumb em{font-style:normal;color:rgba(255,255,255,.86)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--brand);
  padding:6px 12px;border:1px solid rgba(255,90,31,.42);border-radius:999px;margin-bottom:18px;
}
.cat-hero h1{
  color:#fff;font-size:clamp(28px,4.4vw,44px);line-height:1.16;
  max-width:860px;letter-spacing:-.02em;
}
.cat-hero-sub{margin-top:18px;max-width:760px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.74)}
.hero-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;
  font-family:var(--mono);font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.66);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--jade);display:inline-block}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  font-size:12.5px;letter-spacing:.04em;padding:8px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.20);color:rgba(255,255,255,.82);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:rgba(255,255,255,.12);color:#fff}
.chip.is-on{background:#fff;color:var(--ink-900);border-color:#fff;font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:var(--ink-900);color:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-label{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--brand);margin-bottom:10px}
.sec-head h2{font-size:clamp(22px,2.4vw,28px)}
.sec-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.more-link{font-size:14px;font-weight:600;color:var(--ink-900);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.more-link span{transition:transform .2s var(--ease)}
.more-link:hover{color:var(--brand)}
.more-link:hover span{transform:translateX(3px)}

/* ---------- 错落瀑布 ---------- */
.falls{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.fall-col{display:flex;flex-direction:column;gap:28px}
.fall-col-b{padding-top:64px}
.fall-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.fall-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#d6d6d0}
.fall-media{position:relative;overflow:hidden;background:var(--paper-2)}
.fall-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.fall-card:hover .fall-media img{transform:scale(1.04)}
.ratio-34{aspect-ratio:3/4}
.ratio-169{aspect-ratio:16/9}
.ratio-45{aspect-ratio:4/5}
.media-badge{
  position:absolute;top:14px;left:14px;font-size:12px;letter-spacing:.06em;font-weight:600;
  padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  backdrop-filter:blur(6px);
}
.media-badge.jade{background:rgba(18,179,154,.16);color:#0e8d7b}
.media-badge.sand{background:rgba(217,178,106,.22);color:#8a6a24}
.fall-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.fall-body h3{font-size:19px;line-height:1.4}
.fall-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--text-3);
}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}
.tag-jade{background:rgba(18,179,154,.12);color:#0e8d7b}
.tag-plain{background:var(--paper-2);color:var(--text-2)}
.text-card{padding:28px 26px 26px;gap:14px;min-height:236px;justify-content:flex-start}
.text-card.dark{background:var(--ink-900);border-color:rgba(255,255,255,.08)}
.text-card.dark h3{color:#fff}
.text-card.dark p{color:rgba(255,255,255,.72)}
.text-card.dark .card-meta{border-top-color:var(--line-dark);color:rgba(255,255,255,.5)}
.text-card.dark:hover{border-color:rgba(255,255,255,.20)}
.text-card.light{background:var(--paper-2)}
.text-card .mini-label{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--brand)}
.text-card.dark .mini-label{color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:12px}

/* ---------- 赛程节奏 ---------- */
.stage-list{border-top:1px solid var(--line)}
.stage{
  display:grid;grid-template-columns:60px 1fr auto;gap:20px;align-items:center;
  padding:22px 16px 22px 6px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.stage:hover{background:var(--white);transform:translateX(4px)}
.stage-no{font:700 20px/1 var(--mono);color:var(--brand);letter-spacing:.02em}
.stage-body h3{font-size:17px;margin-bottom:6px}
.stage-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.stage-state{
  font-size:12px;letter-spacing:.06em;padding:5px 13px;border-radius:999px;white-space:nowrap;
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}
.stage-state.done{background:rgba(18,179,154,.12);color:#0e8d7b}
.stage-state.wait{background:var(--paper-2);color:var(--text-2)}
.progress-wrap{margin-top:34px;display:flex;align-items:center;gap:18px}
.progress{flex:1;height:6px;background:var(--paper-2);border-radius:999px;overflow:hidden}
.progress i{display:block;height:100%;width:62%;background:linear-gradient(90deg,var(--brand),#ff9256);border-radius:999px}
.progress-text{font-family:var(--mono);font-size:13px;color:var(--text-2);white-space:nowrap}

/* ---------- 积分榜 ---------- */
.rank-wrap{display:grid;grid-template-columns:2fr 1fr;gap:36px;align-items:start}
.rank-list{border-top:1px solid var(--line);margin-top:8px}
.rank-row{
  display:grid;grid-template-columns:46px 64px 1fr auto;gap:16px;align-items:center;
  padding:14px 12px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.rank-row:hover{background:var(--paper-2);transform:translateX(4px)}
.rank-no{font:700 18px/1 var(--mono);color:var(--text-3)}
.rank-row:nth-child(-n+3) .rank-no{color:var(--brand)}
.rank-row img{width:64px;height:88px;border-radius:8px;object-fit:cover;background:var(--paper-2)}
.rank-info strong{display:block;font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
.rank-info em{font-style:normal;font-size:13px;color:var(--text-2)}
.rank-score{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.rank-score span{display:block;font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.06em}
.side-card{
  background:var(--ink-900);color:#fff;border-radius:var(--r-card);padding:28px 24px;
  border:1px solid rgba(255,255,255,.08);
}
.side-card h3{color:#fff;font-size:18px;margin-bottom:20px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--line-dark)}
.stat-row:last-of-type{border-bottom:0}
.stat-row span{font-size:13.5px;color:rgba(255,255,255,.68)}
.stat-row strong{font-family:var(--mono);font-size:20px;font-weight:700;color:#fff}
.stat-row strong.jade{color:var(--jade)}
.side-note{margin-top:18px;font-size:13px;line-height:1.75;color:rgba(255,255,255,.55)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;font-size:17px;font-weight:600;color:var(--ink-900);
  cursor:pointer;list-style:none;transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq .plus{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .26s var(--ease);
}
.faq .plus::before,.faq .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq .plus::before{left:50%;top:4px;width:2px;height:14px;transform:translateX(-50%)}
.faq .plus::after{top:50%;left:4px;height:2px;width:14px;transform:translateY(-50%)}
.faq details[open] summary{color:var(--brand)}
.faq details[open] .plus{transform:rotate(45deg)}
.faq details p{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:820px}

/* ---------- CTA ---------- */
.cta{background:var(--ink-900);color:#fff;padding:72px 0;position:relative;overflow:hidden}
.cta::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-inner{
  position:relative;z-index:2;border:1px solid rgba(255,90,31,.45);border-radius:18px;
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{
  max-width:1240px;margin:0 auto;padding:0 32px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand strong{display:block;color:#fff;font-size:17px;font-weight:800;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-col li a{display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.66)}
.footer-col li a:hover{color:#fff}
.footer-chips{display:flex;flex-wrap:wrap;gap:8px}
.footer-chips a{
  font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid var(--line-dark);
  color:rgba(255,255,255,.7);
}
.footer-chips a:hover{background:rgba(255,255,255,.10);color:#fff}
.footer-bottom{
  max-width:1240px;margin:44px auto 0;padding:20px 32px 0;
  border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .falls{gap:24px}
  .fall-col{gap:24px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .header-inner{padding:0 24px}
  .nav-channels{display:none}
  .menu-btn{display:grid}
  .search-wrap{display:none}
  .section{padding:64px 0}
  .falls{grid-template-columns:1fr}
  .fall-col-b{padding-top:0}
  .rank-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:0 24px}
  .footer-bottom{padding:20px 24px 0}
  .cat-hero{padding:124px 0 56px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .header-inner{padding:0 20px;height:60px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .section{padding:48px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cat-hero{padding:112px 0 48px}
  .cat-hero h1{font-size:clamp(24px,6.6vw,32px)}
  .cat-hero-sub{font-size:15.5px}
  .hero-meta{gap:8px 16px;font-size:12px}
  .chip-row{gap:8px}
  .chip{padding:7px 13px;font-size:12px}
  .stage{grid-template-columns:44px 1fr;gap:14px;padding:18px 4px}
  .stage-state{grid-column:2;justify-self:start;margin-top:4px}
  .rank-row{grid-template-columns:34px 52px 1fr;gap:12px;padding:12px 6px}
  .rank-row img{width:52px;height:72px}
  .rank-score{grid-column:3;font-size:14px}
  .cta-inner{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:519px){
  .falls{gap:20px}
  .fall-col{gap:20px}
  .fall-body{padding:16px 16px 18px}
  .fall-body h3{font-size:17px}
  .text-card{padding:22px 18px;min-height:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}