/* roulang page: index */
:root{
  --ink:#0B0C0E;
  --ink-2:#26292F;
  --text:#3A3F47;
  --muted:#6B7280;
  --line:#E4E7EB;
  --line-strong:#D8DCE1;
  --soft:#F6F7F9;
  --progress:#EDEFF2;
  --white:#FFFFFF;
  --gold:#C8A24A;
  --silver:#A9B2BC;
  --bronze:#B07A4E;
  --success:#2F7A55;
  --warn:#B4462F;
  --radius-card:12px;
  --radius-ctl:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,12,14,.04);
  --shadow-2:0 10px 28px rgba(11,12,14,.10);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-ctl);
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
  white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-outline:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--ink-2);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn-full{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.is-loading{opacity:.8;cursor:progress}
.btn.is-loading::before{
  content:"";width:13px;height:13px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(11,12,14,.06)}
.header-main{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.logo-mark{width:12px;height:12px;border-radius:3px;background:var(--ink);flex:0 0 auto}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1}
.main-nav{display:flex;align-items:center;gap:2px;flex:0 0 auto}
.main-nav a{
  padding:8px 12px;border-radius:8px;font-size:14px;color:var(--text);
  transition:background .18s,color .18s;
}
.main-nav a:hover{background:var(--soft);color:var(--ink)}
.main-nav a.is-active{color:var(--ink);font-weight:600;background:var(--soft)}
.header-search{
  display:flex;align-items:center;flex:1 1 auto;max-width:440px;margin-left:auto;
  height:44px;background:#fff;border:1px solid var(--line-strong);
  border-radius:var(--radius-ctl);overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.header-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(200,162,74,.35)}
.header-search svg{flex:0 0 auto;margin-left:14px;color:var(--muted)}
.header-search input{
  flex:1;height:100%;border:0;outline:0;background:transparent;
  padding:0 12px;font-size:14px;min-width:0;
}
.header-search button{
  height:100%;padding:0 20px;border:0;background:var(--ink);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;
}
.header-search button:hover{background:var(--ink-2)}
.header-cta{flex:0 0 auto}
.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-strong);
  border-radius:10px;background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);transition:transform .2s;
}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.is-open{display:block}
.mobile-nav a{
  display:block;padding:13px 20px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.is-active{color:var(--ink);font-weight:600;background:var(--soft)}
.header-chips{border-top:1px solid var(--line);background:#fff}
.chip-row{
  display:flex;align-items:center;gap:10px;height:46px;
  overflow-x:auto;scrollbar-width:none;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:var(--radius-pill);
  font-size:13px;color:var(--text);white-space:nowrap;
  transition:background .18s,color .18s,border-color .18s;
}
.chip:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.chip.is-strong{border-color:var(--ink);color:var(--ink);font-weight:600}

@media (max-width:1023px){
  .header-main{flex-wrap:wrap;height:auto;padding-top:14px;padding-bottom:14px;row-gap:12px}
  .main-nav{display:none}
  .header-cta{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .header-search{flex:0 0 100%;max-width:none;margin-left:0}
  .logo-text{font-size:18px}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:linear-gradient(rgba(11,12,14,.84),rgba(11,12,14,.84)),url('/assets/images/backpic/back-1.jpg');
  background-size:cover;background-position:center;
  padding:88px 0 76px;
  color:#fff;
  scroll-margin-top:120px;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:920px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:#C8A24A;
  border:1px solid rgba(200,162,74,.45);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:20px;
}
.hero-title{
  color:#fff;font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:700;
  letter-spacing:-.005em;
}
.hero-lead{
  margin-top:18px;max-width:720px;
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);
}
.hero-search{
  display:flex;align-items:center;margin-top:30px;
  width:60%;min-width:320px;height:60px;background:#fff;
  border:1px solid rgba(255,255,255,.9);border-radius:var(--radius-ctl);
  overflow:hidden;transition:box-shadow .2s;
}
.hero-search:focus-within{box-shadow:0 0 0 2px rgba(200,162,74,.85)}
.hero-search svg{flex:0 0 auto;margin-left:18px;color:var(--muted)}
.hero-search input{
  flex:1;height:100%;border:0;outline:0;background:transparent;
  padding:0 16px;font-size:15px;color:var(--ink);min-width:0;
}
.hero-search button{
  height:44px;margin-right:8px;padding:0 24px;border:0;border-radius:8px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s;
}
.hero-search button:hover{background:var(--ink-2)}
.hero-hot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px}
.hero-hot-label{font-size:13px;color:rgba(255,255,255,.6)}
.hot-chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--radius-pill);background:rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.9);
  transition:background .18s,color .18s;
}
.hot-chip:hover{background:#fff;color:var(--ink)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{
  margin-top:22px;font-size:13px;color:rgba(255,255,255,.62);
  font-variant-numeric:tabular-nums;
}
@media (max-width:1023px){
  .hero{padding:64px 0 56px}
  .hero-search{width:100%;min-width:0;height:56px}
}
@media (max-width:767px){
  .hero{padding:48px 0 44px}
  .hero-actions .btn{flex:1 1 auto}
}

/* ---------- 板块骨架 ---------- */
.section{padding:76px 0;border-top:1px solid var(--line);scroll-margin-top:120px}
.section-soft{background:var(--soft)}
.section-head{max-width:780px;margin-bottom:34px}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;letter-spacing:-.005em}
.section-desc{margin-top:12px;font-size:15px;line-height:1.85;color:var(--muted)}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{margin-bottom:24px}
}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.metric-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 22px;box-shadow:var(--shadow-1);
  overflow:hidden;transition:border-color .2s,box-shadow .2s,transform .2s;
}
.metric-card::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:var(--gold)}
.metric-card:nth-child(2)::before{background:var(--silver)}
.metric-card:nth-child(3)::before{background:var(--bronze)}
.metric-card:nth-child(4)::before{background:var(--ink)}
.metric-card:nth-child(5)::before{background:var(--gold)}
.metric-card:nth-child(6)::before{background:var(--silver)}
.metric-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.metric-value{
  font-size:36px;line-height:1.2;font-weight:700;color:var(--ink);
  font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-value small{font-size:15px;font-weight:600;margin-left:4px;font-family:inherit;color:var(--muted)}
.metric-label{margin-top:6px;font-size:14px;font-weight:600;color:var(--ink-2)}
.metric-note{margin-top:10px;font-size:12px;line-height:1.7;color:var(--muted)}
@media (max-width:1023px){.metric-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .metric-card{padding:18px 16px}
  .metric-value{font-size:28px}
}

/* ---------- 分类速达 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-card{
  display:flex;align-items:flex-start;gap:14px;padding:22px 20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s,transform .2s;
}
.channel-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.channel-icon{
  flex:0 0 42px;height:42px;border-radius:10px;background:var(--soft);
  display:grid;place-items:center;color:var(--ink);
}
.channel-body{flex:1;min-width:0}
.channel-name{font-size:16px;font-weight:600;color:var(--ink)}
.channel-text{margin-top:6px;font-size:13px;line-height:1.7;color:var(--muted)}
.channel-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;margin-top:12px;
  border-radius:var(--radius-pill);background:var(--soft);
  font-size:12px;color:var(--ink-2);font-variant-numeric:tabular-nums;
}
@media (max-width:1023px){.channel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.channel-grid{grid-template-columns:1fr}}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.matrix-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.matrix-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.matrix-item.is-reverse{flex-direction:row-reverse;text-align:right}
.matrix-no{
  flex:0 0 48px;height:48px;border-radius:10px;display:grid;place-items:center;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:16px;font-weight:700;color:#fff;background:var(--ink);
}
.matrix-item:nth-child(2) .matrix-no{background:var(--gold)}
.matrix-item:nth-child(3) .matrix-no{background:var(--silver)}
.matrix-item:nth-child(4) .matrix-no{background:var(--bronze)}
.matrix-item:nth-child(5) .matrix-no{background:var(--ink-2)}
.matrix-item:nth-child(6) .matrix-no{background:var(--gold)}
.matrix-body{flex:1;min-width:0}
.matrix-body h3{font-size:17px;line-height:1.5}
.matrix-body p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted)}
@media (max-width:1023px){
  .matrix{grid-template-columns:1fr}
  .matrix-item.is-reverse{flex-direction:row;text-align:left}
}

/* ---------- 收录结果对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
}
.compare-col.is-win{border-color:var(--ink)}
.compare-col h3{font-size:17px;margin-bottom:6px}
.compare-col > p{font-size:13px;color:var(--muted);margin-bottom:22px}
.bar-row{margin-bottom:20px}
.bar-row:last-child{margin-bottom:0}
.bar-head{display:flex;justify-content:space-between;font-size:13px;color:var(--text);margin-bottom:8px}
.bar-value{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.compare-col.is-win .bar-value{color:var(--gold)}
.bar-track{height:8px;border-radius:var(--radius-pill);background:var(--progress);overflow:hidden}
.bar-fill{height:100%;border-radius:var(--radius-pill);background:var(--ink);width:0;transition:width .9s ease}
.compare-note{margin-top:18px;font-size:12px;line-height:1.7;color:var(--muted)}
@media (max-width:767px){.compare{grid-template-columns:1fr}}

/* ---------- 榜单 ---------- */
.rank-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.rank-row{
  display:flex;align-items:center;gap:16px;height:68px;padding:0 22px;
  border-bottom:1px solid var(--line);transition:background .18s;
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:var(--soft)}
.rank-badge{
  flex:0 0 28px;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;background:var(--progress);
  font-size:13px;font-weight:700;color:var(--ink-2);
  font-family:var(--mono);font-variant-numeric:tabular-nums;
}
.rank-badge.r1{background:var(--gold);color:#fff}
.rank-badge.r2{background:var(--silver);color:#fff}
.rank-badge.r3{background:var(--bronze);color:#fff}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:15px;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-main p{
  font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border:1px solid var(--line-strong);border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.04em;color:var(--muted);white-space:nowrap;
}
.rank-link{
  font-size:13px;color:var(--ink);font-weight:600;white-space:nowrap;
  border-bottom:1px solid var(--gold);padding-bottom:2px;transition:color .18s;
}
.rank-link:hover{color:var(--gold)}
.rank-arrow{color:var(--muted);transition:transform .2s}
.rank-row:hover .rank-arrow{transform:translateX(2px)}
@media (max-width:767px){
  .rank-row{flex-wrap:wrap;height:auto;padding:14px 18px;gap:10px}
  .rank-main h3{white-space:normal}
  .rank-main p{white-space:normal}
  .rank-link{order:3}
}

/* ---------- 里程碑 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.timeline::before{
  content:"";position:absolute;left:8px;right:8px;top:10px;height:1px;
  background:var(--line);z-index:0;
}
.timeline-item{position:relative;padding-top:38px;padding-right:24px;z-index:1}
.timeline-dot{
  position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;
  background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 1px var(--line);
}
.timeline-item:nth-child(2) .timeline-dot{background:var(--silver)}
.timeline-item:nth-child(3) .timeline-dot{background:var(--bronze)}
.timeline-item:nth-child(4) .timeline-dot{background:var(--ink-2)}
.timeline-year{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px;
}
.timeline-item h3{font-size:15px;line-height:1.5}
.timeline-item p{margin-top:6px;font-size:13.5px;line-height:1.8;color:var(--muted)}
@media (max-width:767px){
  .timeline{grid-template-columns:1fr}
  .timeline::before{left:9px;right:auto;top:8px;bottom:8px;width:1px;height:auto}
  .timeline-item{padding:0 0 28px 38px}
  .timeline-item:last-child{padding-bottom:0}
}

/* ---------- 场景专题 ---------- */
.scene-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.scene-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--progress)}
.scene-card-body{padding:18px}
.scene-card-body h3{font-size:16px;line-height:1.5}
.scene-card-body p{margin-top:8px;font-size:13.5px;line-height:1.8;color:var(--muted)}
@media (max-width:1023px){.scene-track{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.scene-track{grid-template-columns:1fr}}

/* ---------- 资讯列表 ---------- */
.news-list{display:grid;gap:16px}
.news-item{
  display:grid;grid-template-columns:220px 1fr;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s;
}
.news-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2)}
.news-thumb{
  width:100%;height:100%;min-height:150px;object-fit:cover;
  aspect-ratio:3/2;background:var(--progress);
}
.news-body{padding:20px 22px}
.news-body h3{font-size:16px;line-height:1.5}
.news-body time{
  display:block;margin-top:6px;font-size:12px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-body p{margin-top:8px;font-size:13.5px;line-height:1.8;color:var(--muted)}
@media (max-width:767px){
  .news-item{grid-template-columns:1fr}
  .news-thumb{min-height:0}
}

/* ---------- 平台保障 ---------- */
.protect-grid{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:auto auto;gap:20px}
.protect-main,.protect-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s;
}
.protect-main{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between}
.protect-main:hover,.protect-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2)}
.protect-icon{
  width:46px;height:46px;border-radius:10px;background:var(--soft);
  display:grid;place-items:center;color:var(--ink);margin-bottom:16px;
}
.protect-main h3{font-size:19px;line-height:1.5}
.protect-main p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--muted)}
.protect-item h3{font-size:16px;line-height:1.5}
.protect-item p{margin-top:8px;font-size:13.5px;line-height:1.8;color:var(--muted)}
.protect-stat{
  margin-top:24px;padding-top:18px;border-top:1px solid var(--line);
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--muted);
}
@media (max-width:900px){
  .protect-grid{grid-template-columns:1fr;grid-template-rows:none}
  .protect-main{grid-row:auto}
}

/* ---------- 快速解答 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.qa-item{
  display:block;width:100%;text-align:left;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 18px;cursor:pointer;transition:border-color .2s,box-shadow .2s;
}
.qa-item:hover{border-color:var(--ink);box-shadow:var(--shadow-1)}
.qa-q{
  display:block;position:relative;padding-right:24px;
  font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;
}
.qa-q::after{
  content:"+";position:absolute;right:0;top:-2px;
  color:var(--gold);font-size:18px;font-weight:700;line-height:1;
  transition:transform .22s ease;
}
.qa-item[aria-expanded="true"] .qa-q::after{transform:rotate(45deg)}
.qa-a{
  display:block;max-height:0;overflow:hidden;opacity:0;
  font-size:13.5px;line-height:1.8;color:var(--muted);
  transition:max-height .28s ease,opacity .28s ease,margin .28s ease;
}
.qa-item[aria-expanded="true"] .qa-a{max-height:160px;opacity:1;margin-top:10px}
@media (max-width:767px){.qa-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:10px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0 20px;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:var(--ink)}
.faq-item[open]{border-left:3px solid var(--gold);box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 0;cursor:pointer;list-style:none;
  font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;color:var(--gold);font-size:19px;font-weight:700;line-height:1;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 18px;font-size:14.5px;line-height:1.8;color:var(--text)}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.steps::before{
  content:"";position:absolute;left:14%;right:14%;top:26px;
  border-top:1px dashed var(--line-strong);z-index:0;
}
.step{position:relative;z-index:1;padding-right:28px}
.step-no{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;
  background:var(--gold);color:#fff;font-family:var(--mono);
  font-variant-numeric:tabular-nums;font-size:18px;font-weight:700;
  box-shadow:0 6px 18px rgba(200,162,74,.28);
}
.step:nth-child(2) .step-no{background:var(--silver);box-shadow:0 6px 18px rgba(169,178,188,.3)}
.step:nth-child(3) .step-no{background:var(--bronze);box-shadow:0 6px 18px rgba(176,122,78,.28)}
.step h3{margin-top:20px;font-size:17px;line-height:1.5}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted)}
@media (max-width:767px){
  .steps{grid-template-columns:1fr}
  .steps::before{display:none}
  .step{padding:0 0 28px}
  .step:last-child{padding-bottom:0}
  .step h3{margin-top:14px}
}

/* ---------- 表单 ---------- */
.form-wrap{display:grid;grid-template-columns:1.45fr 1fr;gap:32px;align-items:start}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--line-strong);border-radius:var(--radius-ctl);
  padding:0 14px;font-size:14px;background:#fff;outline:none;
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);box-shadow:0 0 0 2px rgba(200,162,74,.4);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA0A8}
.field-hint{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.7}
.form-success{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:var(--radius-ctl);
  background:#EAF3EE;border:1px solid #BFDCCB;color:var(--success);
  font-size:13.5px;line-height:1.7;
}
.form-success.is-visible{display:block}
.form-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px}
.form-side h3{font-size:16px;line-height:1.5}
.form-side p{margin-top:10px;font-size:13.5px;line-height:1.85;color:var(--muted)}
.notice-list{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:10px}
.notice-list li{position:relative;padding-left:16px;font-size:13px;line-height:1.75;color:var(--text)}
.notice-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--gold);
}
@media (max-width:900px){
  .form-wrap{grid-template-columns:1fr;gap:20px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
}

/* ---------- 用户口碑 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s;
}
.voice-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2)}
.voice-stars{color:var(--gold);font-size:14px;letter-spacing:.14em}
.voice-card p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--text)}
.voice-user{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;
}
.voice-user strong{color:var(--ink-2);font-weight:600}
@media (max-width:1023px){.voice-grid{grid-template-columns:1fr}}

/* ---------- 相关专题 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.topic-card{
  display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.topic-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--progress)}
.topic-body{padding:18px}
.topic-body h3{font-size:16px;line-height:1.5}
.topic-body p{margin-top:8px;font-size:13.5px;line-height:1.8;color:var(--muted)}
.topic-meta{margin-top:12px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
@media (max-width:1023px){.topic-grid{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-logo{display:flex;align-items:center;gap:9px;margin-bottom:16px}
.footer-logo .logo-mark{background:#fff}
.footer-logo span:last-child{font-size:18px;font-weight:700;color:#fff}
.footer-brand p{font-size:13px;line-height:1.85;color:#9AA0A8;max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{
  font-size:13px;color:#9AA0A8;transition:color .18s,border-color .18s;
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.footer-col a:hover{color:#fff;border-bottom-color:var(--gold)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:#8A9099;
}
.footer-bottom a{color:#8A9099;border-bottom:1px solid transparent}
.footer-bottom a:hover{color:#fff;border-bottom-color:var(--gold)}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;z-index:70;
  border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);
  display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s,transform .25s,visibility .25s,background .2s,color .2s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* roulang page: category1 */
:root{
 --ink:#0B0C0E;
 --ink-2:#26292F;
 --text:#3A3F47;
 --muted:#6B7280;
 --line:#E4E7EB;
 --line-strong:#D8DCE1;
 --soft:#F6F7F9;
 --progress:#EDEFF2;
 --white:#FFFFFF;
 --gold:#C8A24A;
 --silver:#A9B2BC;
 --bronze:#B07A4E;
 --success:#2F7A55;
 --warn:#B4462F;
 --radius-card:12px;
 --radius-ctl:10px;
 --radius-pill:999px;
 --shadow-1:0 1px 2px rgba(11,12,14,.04);
 --shadow-2:0 10px 28px rgba(11,12,14,.10);
 --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
 font-size:15px;line-height:1.85;color:var(--text);background:var(--white);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;color:var(--ink);font-weight:600;line-height:1.35}
p{margin:0}
b,strong{font-weight:600}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
 outline:2px solid var(--gold);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 按钮 ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 height:44px;padding:0 22px;border-radius:var(--radius-ctl);
 font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
 transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
 white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--ink-2);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn-full{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.is-loading{opacity:.8;cursor:progress}
.btn.is-loading::before{
 content:"";width:13px;height:13px;border-radius:50%;
 border:2px solid rgba(255,255,255,.35);border-top-color:#fff;
 animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 顶部导航 ---------- */
.site-header{
 position:sticky;top:0;z-index:80;background:#fff;
 border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(11,12,14,.06)}
.header-main{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:14px 0;row-gap:12px}
.logo{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.logo-mark{width:12px;height:12px;border-radius:3px;background:var(--ink);flex:0 0 auto}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);line-height:1}
.main-nav{display:none;align-items:center;gap:2px}
.main-nav a{padding:8px 12px;border-radius:8px;font-size:14px;color:var(--text);transition:background .18s,color .18s}
.main-nav a:hover{background:var(--soft);color:var(--ink)}
.main-nav a.is-active{color:var(--ink);font-weight:600;background:var(--soft)}
.header-search{
 display:flex;align-items:center;flex:1 0 100%;order:5;height:44px;
 background:#fff;border:1px solid var(--line-strong);border-radius:var(--radius-ctl);
 overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.header-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(200,162,74,.35)}
.header-search svg{flex:0 0 auto;margin-left:14px;color:var(--muted)}
.header-search input{flex:1;height:100%;border:0;outline:0;background:transparent;padding:0 12px;font-size:14px;min-width:0}
.header-search button{
 height:100%;padding:0 18px;border:0;background:var(--ink);color:#fff;
 font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;
}
.header-search button:hover{background:var(--ink-2)}
.header-cta{display:none}
.menu-toggle{
 display:inline-flex;width:40px;height:40px;margin-left:auto;border:1px solid var(--line-strong);
 border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
 content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);transition:transform .2s;
}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:13px 20px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line)}
.mobile-nav a:hover{background:var(--soft);color:var(--ink)}
.header-chips{border-top:1px solid var(--line);background:#fff}
.chip-row{display:flex;align-items:center;gap:10px;height:46px;overflow-x:auto;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{
 display:inline-flex;align-items:center;height:32px;padding:0 14px;
 border:1px solid var(--line-strong);border-radius:var(--radius-pill);
 font-size:13px;color:var(--text);white-space:nowrap;
 transition:background .18s,color .18s,border-color .18s;
}
.chip:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
@media(min-width:1024px){
 .header-main{flex-wrap:nowrap;gap:22px;height:72px;padding:0}
 .logo-text{font-size:19px}
 .main-nav{display:flex}
 .menu-toggle{display:none}
 .mobile-nav{display:none !important}
 .header-search{order:0;flex:1 1 auto;max-width:440px;margin-left:auto}
 .header-cta{display:inline-flex}
}

/* ---------- 分类页头 ---------- */
.cat-hero{
 position:relative;color:#fff;min-height:240px;display:flex;align-items:center;
 padding:34px 0;background-image:linear-gradient(rgba(11,12,14,.86),rgba(11,12,14,.86)),url('/assets/images/backpic/back-3.png');
 background-size:cover;background-position:center;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
 background-size:72px 72px;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-inner{display:grid;gap:26px;align-items:end}
@media(min-width:1024px){.cat-hero-inner{grid-template-columns:minmax(0,1fr) auto;gap:40px}}
.crumb{font-size:13px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;margin-bottom:12px}
.crumb a{color:rgba(255,255,255,.85)}
.crumb a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:4px}
.cat-hero h1{font-size:clamp(26px,3.6vw,40px);color:#fff;line-height:1.25;font-weight:700}
.cat-lead{margin-top:14px;max-width:660px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.78)}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.hero-chip{
 display:inline-flex;align-items:center;height:30px;padding:0 13px;
 border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-pill);
 font-size:12px;letter-spacing:.04em;color:rgba(255,255,255,.86);
}
.mini-metrics{
 display:flex;flex-wrap:wrap;border:1px solid rgba(255,255,255,.22);
 border-radius:var(--radius-card);background:rgba(255,255,255,.06);overflow:hidden;
}
.mini-metric{padding:14px 22px;min-width:132px;border-right:1px solid rgba(255,255,255,.14)}
.mini-metric:last-child{border-right:0}
.mini-metric b{display:block;font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;font-family:var(--mono)}
.mini-metric span{font-size:12px;color:rgba(255,255,255,.7)}

/* ---------- 分类主体分栏 ---------- */
.cat-layout{display:grid;grid-template-columns:1fr;gap:24px;padding:32px 0 64px}
@media(min-width:1024px){
 .cat-layout{grid-template-columns:240px minmax(0,1fr);gap:32px;padding:44px 0 80px}
}

/* 筛选栏 */
.filter-panel{border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;padding:18px}
@media(min-width:1024px){.filter-panel{position:sticky;top:140px;align-self:start}}
.filter-block + .filter-block{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.filter-title{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}
.filter-list{display:flex;flex-wrap:wrap;gap:8px}
@media(min-width:1024px){.filter-list{display:block}}
.filter-item{flex:0 0 auto}
.check{
 display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);
 padding:7px 10px;border:1px solid var(--line-strong);border-radius:var(--radius-pill);
 cursor:pointer;transition:background .18s,border-color .18s,color .18s;background:#fff;
}
.check:hover{border-color:var(--ink);color:var(--ink)}
.check input{accent-color:var(--ink);margin:0;width:14px;height:14px}
.check em{margin-left:auto;font-style:normal;font-family:var(--mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
@media(min-width:1024px){
 .check{border:0;border-radius:8px;padding:7px 10px}
 .check input{width:15px;height:15px}
}
.filter-reset{
 display:inline-flex;align-items:center;height:34px;padding:0 14px;margin-top:16px;
 border:1px solid var(--line-strong);border-radius:var(--radius-ctl);background:#fff;
 font-size:13px;color:var(--muted);cursor:pointer;transition:color .18s,border-color .18s;
}
.filter-reset:hover{color:var(--ink);border-color:var(--ink)}

/* 工具条 */
.toolbar{
 display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
 padding:10px 14px;margin-bottom:20px;
}
@media(min-width:1024px){.toolbar{position:sticky;top:118px;z-index:60;margin-bottom:24px}}
.tabs{display:flex;align-items:center;gap:4px;background:var(--soft);border-radius:var(--radius-ctl);padding:4px}
.tab{
 border:0;background:transparent;padding:7px 16px;border-radius:8px;
 font-size:13px;color:var(--muted);cursor:pointer;transition:background .18s,color .18s;
}
.tab:hover{color:var(--ink)}
.tab.is-active{background:#fff;color:var(--ink);font-weight:600;box-shadow:var(--shadow-1)}
.toolbar-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.result-count{font-size:13px;color:var(--muted)}
.result-count b{font-family:var(--mono);color:var(--ink);font-variant-numeric:tabular-nums}
.view-switch{display:flex;gap:4px;border:1px solid var(--line-strong);border-radius:var(--radius-ctl);padding:3px}
.view-btn{
 border:0;background:transparent;padding:5px 12px;border-radius:7px;
 font-size:13px;color:var(--muted);cursor:pointer;transition:background .18s,color .18s;
}
.view-btn:hover{color:var(--ink)}
.view-btn.is-active{background:var(--ink);color:#fff}

/* 站点卡片 */
.site-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.site-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
.site-grid.view-list{grid-template-columns:1fr}
.site-card{
 display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-card);overflow:hidden;
 transition:border-color .2s,box-shadow .2s,transform .2s;
}
.site-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.site-card.stripe-1{border-left:4px solid var(--gold)}
.site-card.stripe-2{border-left:4px solid var(--silver)}
.site-card.stripe-3{border-left:4px solid var(--bronze)}
.card-media{background:var(--soft)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-head{display:flex;align-items:center;gap:10px}
.card-title{
 font-size:17px;font-weight:600;color:var(--ink);
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
 font-size:14px;line-height:1.8;color:var(--text);
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:auto}
.tag{
 display:inline-flex;align-items:center;height:24px;padding:0 10px;
 background:var(--soft);border-radius:var(--radius-pill);
 font-size:12px;letter-spacing:.04em;color:var(--muted);
}
.card-score{margin-left:auto;font-size:12px;color:var(--muted)}
.card-score b{font-family:var(--mono);font-size:15px;color:var(--gold);font-variant-numeric:tabular-nums}
.site-grid.view-list .site-card{flex-direction:row;align-items:stretch}
.site-grid.view-list .card-media{flex:0 0 200px;max-width:200px}
.site-grid.view-list .card-media img{height:100%;aspect-ratio:auto;min-height:124px}
@media(max-width:639px){
 .site-grid.view-list .site-card{flex-direction:column}
 .site-grid.view-list .card-media{flex:0 0 auto;max-width:none}
 .site-grid.view-list .card-media img{aspect-ratio:16/9;min-height:0}
}
.rank-badge{
 display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
 width:28px;height:28px;border-radius:8px;font-family:var(--mono);font-size:13px;
 font-weight:700;font-variant-numeric:tabular-nums;
}
.rank-gold{background:var(--gold);color:#fff}
.rank-silver{background:var(--silver);color:#fff}
.rank-bronze{background:var(--bronze);color:#fff}
.rank-plain{background:var(--soft);color:var(--ink-2)}

.more-wrap{display:flex;justify-content:center;margin-top:28px}
.empty-state{
 display:none;flex-direction:column;align-items:center;gap:8px;
 padding:48px 20px;border:1px dashed var(--line-strong);border-radius:var(--radius-card);
 color:var(--muted);font-size:14px;text-align:center;
}
.empty-state.is-visible{display:flex}

/* ---------- 板块通用 ---------- */
.section{border-top:1px solid var(--line);padding:56px 0}
@media(min-width:1024px){.section{padding:80px 0}}
.section--soft{background:var(--soft)}
.section-head{max-width:780px;margin-bottom:28px}
.eyebrow{
 display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;
 color:var(--muted);margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-sub{margin-top:12px;font-size:14px;line-height:1.85;color:var(--muted)}

/* Top5 速览 */
.top5{display:flex;gap:14px;overflow-x:auto;padding-bottom:10px;scrollbar-width:thin}
.top5-item{
 flex:0 0 258px;height:88px;padding:14px 16px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius-card);
 display:flex;flex-direction:column;justify-content:center;gap:8px;
 transition:border-color .2s,box-shadow .2s,transform .2s;
}
.top5-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.top5-head{display:flex;align-items:center;gap:10px}
.top5-name{
 font-size:15px;font-weight:600;color:var(--ink);
 white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.top5-meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.top5-meta b{font-family:var(--mono);color:var(--ink)}
.top5-meta b.gold{color:var(--gold)}

/* 收录标准 */
.rule-list{display:grid;gap:14px;max-width:920px}
.rule-item{
 display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;align-items:start;
 padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
 transition:border-color .2s,box-shadow .2s;
}
.rule-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2)}
.rule-item.is-first{border-top:2px solid var(--gold)}
.rule-num{
 width:46px;height:46px;border-radius:10px;background:var(--soft);color:var(--ink);
 display:flex;align-items:center;justify-content:center;
 font-family:var(--mono);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.rule-item h3{font-size:16px;margin-bottom:6px}
.rule-item p{font-size:14px;line-height:1.85;color:var(--text)}

/* 相关专题 */
.topic-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.topic-card{
 display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-card);overflow:hidden;
 transition:border-color .2s,box-shadow .2s,transform .2s;
}
.topic-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.topic-card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.topic-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.topic-body h3{
 font-size:16px;line-height:1.5;
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.topic-body p{
 font-size:13px;line-height:1.8;color:var(--muted);
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.topic-link{
 margin-top:auto;display:inline-flex;align-items:center;gap:6px;
 font-size:13px;font-weight:600;color:var(--ink);
}
.topic-link:hover{color:var(--gold)}
.topic-link span{transition:transform .2s}
.topic-link:hover span{transform:translateX(3px)}

/* FAQ */
.faq{display:grid;gap:10px;max-width:920px}
.faq details{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
 overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq details:hover{box-shadow:var(--shadow-1)}
.faq details[open]{border-left:3px solid var(--gold);border-color:var(--line-strong)}
.faq summary{
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:15px 18px;font-size:15px;font-weight:600;color:var(--ink);
 cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";font-size:20px;line-height:1;color:var(--muted);
 transition:transform .2s,color .2s;
}
.faq details[open] summary::after{transform:rotate(45deg);color:var(--gold)}
.faq-body{padding:0 18px 18px;font-size:15px;line-height:1.8;color:var(--text)}

/* 提交入口条 */
.cta-section{padding:56px 0 72px}
@media(min-width:1024px){.cta-section{padding:72px 0 88px}}
.cta-band{
 background:var(--ink);color:#fff;border-radius:16px;padding:30px 24px;
 display:grid;gap:20px;align-items:center;
}
@media(min-width:768px){.cta-band{grid-template-columns:minmax(0,1fr) auto;padding:36px 40px}}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,26px)}
.cta-band p{margin-top:12px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:720px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--ink);color:#fff;padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-logo{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;color:#fff}
.footer-logo .logo-mark{background:#fff}
.footer-brand p{margin-top:14px;font-size:13px;line-height:1.9;color:#9AA0A8;max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col li + li{margin-top:9px}
.footer-col a{font-size:13px;color:#9AA0A8;transition:color .18s}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:4px}
.footer-bottom{
 margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 font-size:13px;color:#9AA0A8;
}

/* 回到顶部 */
.to-top{
 position:fixed;right:20px;bottom:24px;z-index:90;
 width:44px;height:44px;border:0;border-radius:12px;background:var(--ink);color:#fff;
 display:none;align-items:center;justify-content:center;cursor:pointer;
 box-shadow:var(--shadow-2);transition:background .2s,transform .2s;
}
.to-top.is-visible{display:flex}
.to-top:hover{background:var(--ink-2);transform:translateY(-2px)}