/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --line-soft:#EDE8DF;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --pine-soft:#2A5F55;
  --muted:#6E6A62;
  --focus:#D2542B;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
  --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color 160ms var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ---------- 顶部倒计时条 ---------- */
.count-bar{background:var(--ink);color:#fff}
.count-inner{display:flex;align-items:center;gap:20px;min-height:40px;padding-top:6px;padding-bottom:6px}
.count-tag{
  font-size:12px;letter-spacing:.08em;color:var(--ink);background:var(--paper);
  border-radius:999px;padding:2px 10px;font-weight:700;white-space:nowrap;
}
.count-time{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px}
.count-time .unit{display:inline-flex;align-items:baseline;gap:4px}
.count-time b{color:var(--accent);font-size:17px;font-weight:700;min-width:2ch;text-align:center;display:inline-block}
.count-time i{font-style:normal;color:rgba(255,255,255,.6);font-size:12px}
.count-link{margin-left:auto;color:rgba(255,255,255,.86);font-size:13px;white-space:nowrap}
.count-link:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;background:rgba(245,242,236,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid transparent;
  transition:border-color 200ms var(--ease),background 200ms var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line)}
.head-main-inner{display:flex;align-items:center;gap:16px;min-height:72px;transition:min-height 200ms var(--ease)}
.site-head.is-stuck .head-main-inner{min-height:56px}
.logo{display:flex;flex-direction:column;line-height:1.15;gap:2px}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.14em}
.head-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink-2);display:inline-flex;align-items:center;
  justify-content:center;cursor:pointer;transition:all 160ms var(--ease);
}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);background:#fff}
.head-link{font-size:14px;color:var(--ink-2);padding:8px 10px;border-radius:8px}
.head-link:hover{background:#fff;color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:13px 26px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:all 180ms var(--ease);
  line-height:1.2;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);background:var(--accent-deep)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn-light{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-light:hover{background:var(--paper);color:var(--ink);transform:translateY(-2px)}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}

.search-bar{
  max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);
  border-top:1px solid transparent;background:var(--paper);
}
.search-bar.is-open{max-height:88px;border-top-color:var(--line)}
.search-inner{display:flex;gap:12px;align-items:center;padding-top:14px;padding-bottom:14px}
.search-inner input{
  flex:1;height:48px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;padding:0 16px;font-size:15px;color:var(--ink);
}
.search-inner input::placeholder{color:#A5A096}
.search-inner input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.14)}
.search-hint{font-size:13px;color:var(--muted);white-space:nowrap}

.tabs-row{border-top:1px solid var(--line-soft)}
.tabs-nav{
  display:flex;align-items:center;gap:8px;min-height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  transition:min-height 200ms var(--ease);
}
.tabs-nav::-webkit-scrollbar{display:none}
.site-head.is-stuck .tabs-nav{min-height:44px}
.tab{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--ink-2);background:transparent;
  transition:all 160ms var(--ease);white-space:nowrap;
}
.tab:hover{border-color:var(--ink);color:var(--ink)}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Hero ---------- */
.hero{padding:72px 0 84px}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--accent);font-weight:700;margin-bottom:20px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}
.hero h1{
  font-size:clamp(34px,4.4vw,60px);line-height:1.08;font-weight:800;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero h1 .hl{color:var(--accent)}
.hero-sub{font-size:19px;line-height:1.75;color:var(--ink-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-bottom:22px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:2px;position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-1px;width:100%;height:1px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.link-arrow:hover{color:var(--ink)}
.link-arrow:hover::after{transform:scaleX(1)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13px;color:var(--muted)}
.hero-meta li{display:inline-flex;align-items:center;gap:8px}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--accent);opacity:.75}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--sh-1);
}
.hero-card{
  position:absolute;right:-16px;bottom:-24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-1);max-width:250px;
}
.hero-card .badge{margin-bottom:10px}
.hero-card dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13px}
.hero-card dt{color:var(--muted)}
.hero-card dd{margin:0;font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}

/* ---------- 通用板块 ---------- */
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-head{
  display:flex;align-items:flex-end;gap:24px;flex-wrap:wrap;
  border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:44px;
}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:700;letter-spacing:.08em}
.sec-title{font-size:clamp(26px,3vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
.sec-note{margin-left:auto;font-size:15px;color:var(--muted);max-width:26em}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.4;background:#fff;color:var(--ink);border:1px solid var(--line);
}
.badge-solid{background:var(--ink);color:#fff;border-color:var(--ink)}
.badge-accent{background:rgba(210,84,43,.1);color:var(--accent-deep);border-color:rgba(210,84,43,.24)}

/* ---------- 卖点区 ---------- */
.sell-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.sell-side{position:sticky;top:132px}
.sell-side .sec-num{display:block;margin-bottom:14px}
.sell-side h2{font-size:clamp(26px,2.8vw,36px);line-height:1.2;font-weight:700;margin-bottom:16px}
.sell-side p{font-size:16px;color:var(--muted);max-width:22em}
.sell-list{display:grid;gap:0}
.sell-item{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:26px 0;border-top:1px solid var(--line);
}
.sell-item:last-child{border-bottom:1px solid var(--line)}
.sell-item .num{
  font-family:var(--mono);font-size:30px;font-weight:700;color:var(--line);
  line-height:1;transition:color 200ms var(--ease);
}
.sell-item:hover .num{color:var(--accent)}
.sell-item h3{font-size:22px;font-weight:700;line-height:1.35;margin-bottom:8px}
.sell-item p{font-size:16px;color:var(--ink-2);max-width:44em}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.tile{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  border:1px solid var(--line);background:#fff;display:block;
}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform 240ms var(--ease)}
.tile:hover img{transform:scale(1.04)}
.tile .tile-badge{
  position:absolute;right:12px;bottom:12px;background:rgba(255,255,255,.86);
  color:var(--ink);border-radius:999px;padding:4px 12px;font-size:12px;
  transition:opacity 200ms var(--ease);
}
.tile .tile-veil{
  position:absolute;left:0;right:0;bottom:0;padding:44px 20px 18px;
  background:linear-gradient(180deg,rgba(20,22,26,0) 0%,rgba(20,22,26,.72) 100%);
  color:#fff;transform:translateY(101%);transition:transform 280ms var(--ease);
}
.tile .tile-veil strong{display:block;font-size:16px;font-weight:700;margin-bottom:2px}
.tile .tile-veil span{font-size:13px;color:rgba(255,255,255,.8)}
.tile:hover .tile-veil,.tile:focus-visible .tile-veil{transform:translateY(0)}
.tile:hover .tile-badge{opacity:0}
.tile-a{grid-column:span 7;aspect-ratio:4/3}
.tile-b{grid-column:span 5;aspect-ratio:4/3}
.tile-c{grid-column:span 4;aspect-ratio:1/1}
.tile-d{grid-column:span 4;aspect-ratio:1/1}
.tile-e{grid-column:span 4;aspect-ratio:1/1}

/* ---------- 数据条 ---------- */
.stat-band{background:var(--ink);color:#fff;padding:56px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-grid .stat b{
  display:block;font-family:var(--mono);font-size:38px;font-weight:700;
  color:var(--accent);line-height:1.1;letter-spacing:-.01em;
}
.stat-grid .stat span{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-top:8px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.card-news{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all 240ms var(--ease);
}
.card-news:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{display:block;overflow:hidden}
.card-media img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;transition:transform 240ms var(--ease)}
.card-news:hover .card-media img{transform:scale(1.04)}
.card-body{padding:26px 28px}
.card-body .badge{margin-bottom:12px}
.card-title{font-size:23px;line-height:1.4;font-weight:700;margin-bottom:10px}
.card-title a:hover{color:var(--accent)}
.card-desc{font-size:15px;color:var(--muted);line-height:1.75;margin-bottom:16px}
.card-foot{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.card-foot time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.card-foot .link-arrow{margin-left:auto;font-size:14px}
.news-rows{display:flex;flex-direction:column}
.row-news{
  position:relative;padding:20px 44px 20px 0;border-bottom:1px solid var(--line);
  transition:background 160ms var(--ease);
}
.row-news:first-child{border-top:1px solid var(--line)}
.row-news:hover{background:#FAF8F4}
.row-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:6px;flex-wrap:wrap}
.row-meta time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.row-title{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:4px}
.row-title a{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-desc{font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-go{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
  color:var(--ink-2);transition:all 160ms var(--ease);
}
.row-news:hover .row-go{background:var(--ink);color:#fff;border-color:var(--ink)}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;grid-column:1/-1;
}
.news-empty p{color:var(--muted);font-size:15px;margin-bottom:18px}
.empty-pills{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- CTA + 表单 ---------- */
.cta-band{background:var(--pine);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:start}
.cta-band h2{font-size:clamp(26px,3vw,38px);line-height:1.2;font-weight:700;margin-bottom:18px;color:#fff}
.cta-band .lead{font-size:16px;color:rgba(255,255,255,.82);max-width:30em;margin-bottom:22px}
.cta-points{display:grid;gap:12px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-points li{display:flex;align-items:flex-start;gap:10px}
.cta-points i{color:var(--accent);margin-top:4px}
.form-card{background:var(--card);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);color:var(--ink)}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#A5A096}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:12px;color:var(--muted);margin-bottom:18px;line-height:1.7}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--accent);flex:0 0 auto}
.check-row a{color:var(--ink-2);text-decoration:underline;text-underline-offset:3px}
.check-row a:hover{color:var(--accent)}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:960px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:background 160ms var(--ease),color 160ms var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--accent);
  font-size:15px;font-weight:700;transition:all 200ms var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a p{font-size:16px;line-height:1.85;color:var(--ink-2);padding:0 0 22px;max-width:60em}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px;padding-bottom:48px}
.foot-brand .logo-main{color:#fff;font-size:19px}
.foot-brand .logo-sub{color:rgba(255,255,255,.5)}
.foot-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:26em;color:rgba(255,255,255,.62)}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:#fff;font-weight:700;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.68)}
.foot-col a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:13px;
  color:rgba(255,255,255,.5);
}
.foot-bottom .dot{margin:0 8px;opacity:.5}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.hero-text > *{opacity:0;animation:heroIn 420ms var(--ease) forwards}
.hero-text > *:nth-child(1){animation-delay:.05s}
.hero-text > *:nth-child(2){animation-delay:.13s}
.hero-text > *:nth-child(3){animation-delay:.21s}
.hero-text > *:nth-child(4){animation-delay:.29s}
.hero-text > *:nth-child(5){animation-delay:.37s}
@keyframes heroIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .hero{padding:56px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-card{position:static;margin-top:16px;max-width:none}
  .hero-sub{font-size:17px}
  .sell-grid{grid-template-columns:1fr;gap:32px}
  .sell-side{position:static}
  .news-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .head-link,.head-tools .btn-primary{display:none}
  .nav-burger{display:inline-flex}
  .head-tools{position:relative}
  .head-tools.is-open .head-link,
  .head-tools.is-open .btn-primary{
    display:inline-flex;position:absolute;top:52px;right:0;z-index:70;
  }
  .head-tools.is-open .head-link{top:52px;background:#fff;border:1px solid var(--line);padding:12px 18px;border-radius:10px}
  .head-tools.is-open .btn-primary{top:104px}
  .tile-a,.tile-b{grid-column:span 12;aspect-ratio:4/3}
  .tile-c,.tile-d,.tile-e{grid-column:span 12;aspect-ratio:4/3}
  .gallery{gap:16px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:32px}
  .sec-note{margin-left:0}
  .sell-item{grid-template-columns:44px 1fr;gap:14px;padding:22px 0}
  .sell-item .num{font-size:24px}
  .sell-item h3{font-size:19px}
  .card-body{padding:20px}
  .card-title{font-size:19px}
  .row-news{padding-right:38px}
  .row-title{font-size:16px}
  .cta-band{padding:56px 0}
  .form-card{padding:20px}
  .faq-q{font-size:16px;padding:18px 0}
  .count-tag{display:none}
  .count-time{gap:8px;font-size:13px}
  .count-time b{font-size:15px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .stat-grid .stat b{font-size:30px}
}
@media (max-width:519px){
  .grid-container{padding:0 16px}
  .hero h1{font-size:31px}
  .hero-actions .btn{width:100%}
  .hero-actions .link-arrow{width:100%;justify-content:flex-start}
  .search-inner{flex-wrap:wrap}
  .search-hint{display:none}
}

/* roulang page: article */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,22,26,.04), 0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.show-for-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
  border:1.5px solid transparent;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
@media (hover:hover){
  .btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
  .btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
  .btn:active{transform:translateY(0);}
}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.link-cta:hover{color:var(--accent);border-color:var(--accent);}
.pill{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.4;font-weight:600;
  background:rgba(210,84,43,.1);color:var(--accent-deep);
  border:1px solid rgba(210,84,43,.24);
}
.pill-plain{background:var(--card);color:var(--ink-2);border:1px solid var(--line);}

/* ============ 头部 ============ */
.site-head{
  position:sticky;top:0;z-index:100;
  background:rgba(245,242,236,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 20px -18px rgba(20,22,26,.6);}
.head-main-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.site-head.is-stuck .head-main-inner{height:60px;}
.logo{display:flex;flex-direction:column;line-height:1.1;}
.logo-main{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.logo-sub{font-size:11px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;margin-top:4px;}
.head-tools{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);background:var(--card);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);}
.head-link{font-size:14px;font-weight:600;color:var(--ink-2);}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:var(--card);color:var(--ink);
}
.search-bar{max-height:0;overflow:hidden;background:var(--paper);border-bottom:1px solid transparent;transition:max-height .28s var(--ease),border-color .28s var(--ease);}
.search-bar.is-open{max-height:140px;border-bottom-color:var(--line);}
.search-inner{display:flex;align-items:center;gap:12px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap;}
.search-inner input[type="search"]{
  flex:1 1 260px;min-width:0;margin:0;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--card);padding:0 16px;color:var(--ink);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search-inner input[type="search"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.16);}
.search-hint{font-size:13px;color:var(--muted);}
.tabs-row{border-top:1px solid transparent;border-bottom:1px solid var(--line);background:rgba(245,242,236,.9);}
.tabs-nav{
  display:flex;align-items:center;gap:10px;height:52px;
  overflow-x:auto;overflow-y:hidden;
  -ms-overflow-style:none;scrollbar-width:none;
  scroll-behavior:smooth;
}
.tabs-nav::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  border:1px solid var(--line);background:transparent;
  transition:border-color .16s var(--ease),background .16s var(--ease),color .16s var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink);}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ============ 页面主体 ============ */
.page-wrap{padding:36px 0 68px;}
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--ink);font-weight:600;}

.art-head{margin-top:22px;max-width:820px;}
.art-head .pill{margin-bottom:16px;}
.art-head h1{
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:22px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.art-meta .num{font-family:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,monospace;font-variant-numeric:tabular-nums;}
.art-meta span{display:inline-flex;align-items:center;gap:6px;}
.art-meta i{color:var(--line);font-size:11px;}

/* 正文 + 目录 */
.art-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 262px;
  gap:56px;align-items:start;
  margin-top:40px;
}
.art-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:38px 40px;box-shadow:var(--sh-1);
}
.art-body{font-size:17px;line-height:1.9;color:var(--ink);max-width:740px;}
.art-body p{margin:0 0 1.2em;}
.art-body p:last-child{margin-bottom:0;}
.art-body h2{
  font-size:26px;line-height:1.32;font-weight:700;
  margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--accent);
}
.art-body h3{font-size:20px;line-height:1.4;margin:28px 0 10px;}
.art-body h4{font-size:17px;line-height:1.5;margin:20px 0 8px;font-weight:600;color:var(--ink-2);}
.art-body ul,.art-body ol{margin:0 0 1.2em;padding:0;}
.art-body ul li{position:relative;padding-left:20px;margin-bottom:.5em;}
.art-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;
  background:var(--accent);border-radius:1px;
}
.art-body ol{counter-reset:li;list-style:none;}
.art-body ol li{position:relative;padding-left:26px;margin-bottom:.5em;counter-increment:li;}
.art-body ol li::before{
  content:counter(li);
  position:absolute;left:0;top:0;color:var(--accent);font-weight:700;
  font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;
}
.art-body blockquote{
  margin:24px 0;padding:16px 20px;background:rgba(20,22,26,.04);
  border-left:3px solid var(--line);border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--ink-2);font-size:17px;
}
.art-body blockquote p:last-child{margin-bottom:0;}
.art-body img{border-radius:var(--r-img);margin:24px 0;width:auto;max-width:100%;height:auto;}
.art-body figure{margin:24px 0;}
.art-body figure img{margin:0 0 10px;}
.art-body figcaption{font-size:13px;color:var(--muted);line-height:1.6;}
.art-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.art-body a:hover{color:var(--accent-deep);}
.art-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.art-body th,.art-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.art-body th{background:var(--paper);font-weight:600;}
.art-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* 目录 */
.art-aside{position:sticky;top:132px;}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.toc-card h2{font-size:13px;letter-spacing:.14em;color:var(--muted);font-weight:700;text-transform:uppercase;margin-bottom:14px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.55;color:var(--ink-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 var(--r-btn) var(--r-btn) 0;
  transition:color .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:var(--paper);}
.toc-list a.is-current{color:var(--accent-deep);border-left-color:var(--accent);background:rgba(210,84,43,.06);font-weight:600;}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.7;}
.toc-helper{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.toc-helper p{font-size:13px;color:var(--muted);margin-bottom:12px;line-height:1.7;}

/* 空态 */
.empty-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:56px 28px;text-align:center;box-shadow:var(--sh-1);
}
.empty-box i{font-size:28px;color:var(--line);margin-bottom:16px;display:block;}
.empty-box h2{font-size:20px;margin-bottom:10px;}
.empty-box p{font-size:15px;color:var(--muted);margin-bottom:22px;}

/* 文末标签 */
.art-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-2);background:var(--paper);
  transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease);
}
.tag:hover{border-color:var(--ink);color:var(--ink);background:var(--card);}

/* ============ 通用板块 ============ */
.sec{padding:64px 0;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  flex-wrap:wrap;margin-bottom:32px;
}
.sec-head .sec-title-group{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;}
.sec-idx{
  font-family:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.08em;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.2;font-weight:700;}
.sec-head .sec-note{font-size:14px;color:var(--muted);max-width:340px;line-height:1.7;}

/* 相关推荐卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-news{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card-news .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--paper);}
.card-news .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.card-news .thumb .pill{position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.92);color:var(--ink);border-color:rgba(255,255,255,.8);}
.card-news .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-news h3{font-size:18px;line-height:1.45;font-weight:700;}
.card-news p{font-size:14px;line-height:1.75;color:var(--muted);}
.card-news .more{margin-top:auto;font-size:13px;font-weight:600;color:var(--accent-deep);display:inline-flex;gap:6px;align-items:center;}
@media (hover:hover){
  .card-news:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6CFC2;}
  .card-news:hover .thumb img{transform:scale(1.04);}
}

/* FAQ */
.faq-list{max-width:880px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;text-align:left;font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
  transition:background .16s var(--ease),color .16s var(--ease);
}
.faq-q .ic{color:var(--accent);font-size:14px;flex:0 0 auto;transition:transform .24s var(--ease);}
.faq-q[aria-expanded="true"] .ic{transform:rotate(45deg);}
.faq-q:hover{color:var(--accent-deep);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 4px 22px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:720px;}

/* CTA */
.cta-band{background:var(--pine);color:#fff;border-radius:20px;padding:56px;margin:24px 0 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.25;color:#fff;margin-bottom:16px;}
.cta-band .lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.78);margin-bottom:22px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86);margin-bottom:10px;line-height:1.7;}
.cta-points i{color:#E9A184;margin-top:5px;font-size:12px;}
.form-card{background:var(--card);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--ink);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;margin:0;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--card);padding:12px 14px;color:var(--ink);line-height:1.4;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.16);}
.field textarea{resize:vertical;min-height:84px;}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:12px;color:var(--muted);line-height:1.6;margin:4px 0 18px;}
.agree input{width:16px;height:16px;margin:2px 0 0;flex:0 0 auto;accent-color:var(--accent);}
.form-tip{font-size:12px;color:var(--muted);margin-top:12px;text-align:center;}

/* ============ 页脚 ============ */
.site-foot{border-top:1px solid var(--line);background:var(--paper);margin-top:72px;padding:56px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.foot-brand .logo-main{font-size:18px;}
.foot-brand .logo-sub{margin-bottom:14px;}
.foot-brand p{font-size:14px;line-height:1.8;color:var(--muted);max-width:300px;margin-top:12px;}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-bottom:16px;font-weight:700;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--ink-2);}
.foot-col a:hover{color:var(--accent);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.foot-bottom .dot{color:var(--line);}

/* 淡入 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .art-layout{gap:36px;grid-template-columns:minmax(0,1fr) 240px;}
  .art-panel{padding:32px;}
}
@media (max-width:1023px){
  .art-layout{grid-template-columns:minmax(0,1fr);}
  .art-aside{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:40px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .head-main-inner{height:64px;}
  .head-link{display:none;}
  .nav-burger{display:inline-flex;}
  .head-tools .btn-primary{display:none;}
  .tabs-nav{height:48px;gap:8px;}
  .tab{font-size:13px;padding:7px 13px;}
  .site-head.nav-open .tabs-row{
    position:absolute;left:0;right:0;top:100%;
    background:var(--card);border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);padding:12px 0;
  }
  .site-head.nav-open .tabs-nav{
    height:auto;flex-wrap:wrap;overflow:visible;row-gap:10px;padding:0 16px;
  }
  .page-wrap{padding:26px 0 48px;}
  .art-panel{padding:24px 20px;border-radius:var(--r-card);}
  .art-body{font-size:16px;line-height:1.85;}
  .art-body h2{font-size:22px;margin-top:36px;}
  .art-body h3{font-size:18px;}
  .sec{padding:48px 0;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .faq-q{font-size:16px;padding:18px 2px;}
  .cta-band{padding:28px;border-radius:16px;}
  .form-card{padding:22px;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
  .site-foot{margin-top:48px;padding:40px 0 20px;}
  .art-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .grid-container{padding:0 16px;}
  .art-head h1{font-size:26px;}
  .art-meta{font-size:12px;gap:8px 14px;}
  .search-hint{display:none;}
  .btn{padding:13px 22px;font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-padding-top:120px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color 160ms var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.show-for-sr{position:absolute!important;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--r-btn);
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1.2;
  transition:transform 160ms var(--ease),background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-line{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding-bottom:2px;border-bottom:1px solid var(--ink);}
.btn-line i{font-size:12px;transition:transform 160ms var(--ease);}
@media (hover:hover){
  .btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
  .btn-line:hover{border-color:var(--accent);color:var(--accent);}
  .btn-line:hover i{transform:translateX(4px);}
}
.btn:active{transform:translateY(0);}

/* ---------- countdown ---------- */
.countdown-bar{background:var(--ink);color:#fff;font-size:13px;}
.countdown-inner{display:flex;align-items:center;gap:16px;height:40px;}
.cd-tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;
  background:rgba(255,255,255,.12);border-radius:var(--r-pill);padding:3px 10px;
}
.cd-time{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-variant-numeric:tabular-nums;}
.cd-num{color:#fff;font-weight:700;min-width:26px;text-align:center;}
.cd-num.is-accent{color:var(--accent);}
.cd-unit{color:rgba(255,255,255,.55);font-size:11px;}
.cd-link{margin-left:auto;color:rgba(255,255,255,.82);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.cd-link:hover{color:var(--accent);}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(245,242,236,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(20,22,26,.5);}
.head-main{height:72px;display:flex;align-items:center;transition:height 200ms var(--ease);}
.site-head.is-stuck .head-main{height:58px;}
.head-main-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.logo{display:inline-flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.logo-sub{font-size:11.5px;color:var(--muted);letter-spacing:.14em;font-family:var(--mono);}
.head-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:var(--card);color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:border-color 160ms var(--ease),color 160ms var(--ease);
}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);}
.head-link{font-size:14px;color:var(--ink-2);padding:6px 2px;}
.head-link:hover{color:var(--accent);}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--card);color:var(--ink);
  align-items:center;justify-content:center;
}
.search-bar{display:none;border-top:1px solid var(--line);background:var(--card);}
.search-bar.is-open{display:block;}
.search-inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.search-inner input[type="search"]{
  flex:1 1 260px;min-width:200px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--paper);padding:0 16px;font-size:15px;color:var(--ink);
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.search-inner input[type="search"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.14);}
.search-hint{font-size:13px;color:var(--muted);}
.tabs-row{border-top:1px solid var(--line);}
.tabs-nav{
  display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-nav::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;font-size:14px;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--ink-2);white-space:nowrap;
  transition:background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink);}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}
.site-head.is-stuck .tab{font-size:13.5px;padding:5px 14px;}

/* ---------- page hero ---------- */
.page-hero{padding:40px 0 8px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--ink);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-bottom:8px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:11.5px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;margin-bottom:18px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block;}
h1.hero-title{
  font-size:clamp(32px,4.4vw,58px);line-height:1.1;font-weight:800;letter-spacing:-.02em;
  margin-bottom:18px;max-width:16em;
}
h1.hero-title em{font-style:normal;color:var(--accent);}
.hero-lead{font-size:18px;line-height:1.75;color:var(--ink-2);max-width:36em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-bottom:22px;}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.hero-facts .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
.hero-badge{
  position:absolute;right:-12px;bottom:-20px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-1);min-width:170px;
}
.hero-badge .tag{display:inline-block;font-size:11.5px;color:#fff;background:var(--accent);border-radius:var(--r-pill);padding:2px 10px;margin-bottom:8px;}
.hero-badge strong{display:block;font-family:var(--mono);font-size:20px;font-weight:700;letter-spacing:-.01em;}
.hero-badge span.small{font-size:12.5px;color:var(--muted);}

/* ---------- layout with side anchors ---------- */
.page-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;padding:64px 0 0;}
.side-nav{position:sticky;top:132px;align-self:start;}
.side-nav h2{font-size:12px;font-family:var(--mono);letter-spacing:.14em;color:var(--muted);margin-bottom:16px;text-transform:uppercase;}
.side-nav ul{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.side-nav a{
  display:block;padding:9px 0 9px 18px;margin-left:-1px;border-left:2px solid transparent;
  font-size:14.5px;color:var(--ink-2);
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.side-nav a:hover,.side-nav a.is-active{color:var(--accent);border-left-color:var(--accent);}
.side-note{margin-top:24px;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);font-size:13px;color:var(--muted);line-height:1.7;}
.side-note strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px;}

/* ---------- topic sections ---------- */
.topic-sec{border-top:1px solid var(--line);padding:40px 0 44px;scroll-margin-top:130px;}
.topic-sec:first-child{border-top:0;padding-top:0;}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.08em;font-variant-numeric:tabular-nums;}
.sec-title{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.sec-hint{margin-left:auto;font-size:13.5px;color:var(--muted);}
.topic-sec p{max-width:68ch;color:var(--ink-2);margin-bottom:16px;}
.topic-sec p:last-child{margin-bottom:0;}
.topic-sec p strong{color:var(--ink);font-weight:700;}

/* condition list */
.cond-list{display:grid;gap:0;margin-top:8px;}
.cond-item{display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;padding:20px 0;border-top:1px solid var(--line);}
.cond-item:first-child{border-top:0;}
.cond-idx{font-family:var(--mono);font-size:22px;color:var(--line);font-weight:700;line-height:1.2;transition:color 200ms var(--ease);}
.cond-item:hover .cond-idx{color:var(--accent);}
.cond-item h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.cond-item p{font-size:15.5px;margin-bottom:0;color:var(--muted);}

/* timeline */
.timeline{position:relative;margin-top:20px;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line);}
.tl-item{position:relative;padding:0 0 28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--paper);border:2px solid var(--line);transition:border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.tl-item:hover::before{border-color:var(--accent);background:var(--accent);}
.tl-time{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:.06em;margin-bottom:4px;}
.tl-item h3{font-size:17.5px;font-weight:700;margin-bottom:4px;}
.tl-item p{font-size:15px;color:var(--muted);margin:0;}

/* perks */
.perk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:8px;}
.perk-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;transition:transform 240ms var(--ease),box-shadow 240ms var(--ease);}
.perk-card h3{font-size:17.5px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.perk-card h3 i{color:var(--accent);font-size:14px;}
.perk-card p{font-size:15px;color:var(--muted);margin:0;}
@media (hover:hover){.perk-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}}
.perk-card .mini{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);}

/* note list */
.note-list{margin-top:8px;display:grid;gap:12px;}
.note-list li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-2);}
.note-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--accent);border-radius:1px;
}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin:64px 0 0;}
.stat-item{background:var(--card);padding:24px 22px;}
.stat-item .num{font-family:var(--mono);font-size:30px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.15;}
.stat-item .num span{font-size:15px;color:var(--muted);margin-left:4px;font-weight:500;}
.stat-item .lab{font-size:13.5px;color:var(--muted);margin-top:6px;}

/* ---------- faq ---------- */
.faq-wrap{padding:88px 0 0;}
.sec-bar{display:flex;align-items:flex-end;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.sec-bar .sec-title{margin:0;}
.sec-bar .sec-hint{margin-left:auto;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;padding:20px 0;font-size:17.5px;font-weight:600;color:var(--ink);
  transition:color 160ms var(--ease),background-color 160ms var(--ease);
}
.faq-q .q-index{font-family:var(--mono);font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.faq-q .q-icon{margin-left:auto;color:var(--accent);font-size:15px;transition:transform 240ms var(--ease);}
.faq-q[aria-expanded="true"]{color:var(--accent);}
.faq-q[aria-expanded="true"] .q-icon{transform:rotate(45deg);}
.faq-q:hover{color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);}
.faq-a p{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:70ch;padding:0 0 22px 0;margin:0;}
.faq-a.is-open{max-height:420px;}

/* ---------- cta ---------- */
.cta-band{margin-top:96px;background:var(--pine);color:#fff;}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:64px 0;}
.cta-inner h2{font-size:clamp(24px,3vw,36px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin-bottom:14px;color:#fff;}
.cta-inner p{color:rgba(255,255,255,.8);font-size:16px;max-width:34em;margin-bottom:0;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;}
.cta-points span{font-size:14px;color:rgba(255,255,255,.86);display:inline-flex;align-items:center;gap:8px;}
.cta-points i{color:#fff;font-size:12px;background:rgba(255,255,255,.16);width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;}
.cta-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:28px;}
.cta-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px;}
.cta-card p{font-size:14.5px;color:rgba(255,255,255,.75);margin-bottom:20px;}
.cta-card .btn-primary{width:100%;}
.cta-card .btn-ghost{width:100%;border-color:rgba(255,255,255,.5);color:#fff;margin-top:12px;}
.cta-card .btn-ghost:hover{background:#fff;color:var(--pine);}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);background:var(--paper);padding:64px 0 28px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.foot-brand .logo-main{font-size:19px;}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:14px;max-width:26em;}
.foot-col h4{font-size:13px;font-family:var(--mono);letter-spacing:.14em;color:var(--muted);margin-bottom:16px;font-weight:600;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14.5px;color:var(--ink-2);}
.foot-col a:hover{color:var(--accent);}
.foot-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:48px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.foot-bottom .dot{color:var(--line);}

/* reveal animation */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{max-width:560px;}
  .hero-badge{right:8px;bottom:-16px;}
}
@media (max-width:1023px){
  .page-layout{grid-template-columns:1fr;gap:0;padding-top:48px;}
  .side-nav{position:static;top:auto;margin-bottom:28px;padding-bottom:8px;border-bottom:1px solid var(--line);}
  .side-nav ul{flex-direction:row;overflow-x:auto;border-left:0;gap:8px;padding-bottom:6px;scrollbar-width:none;}
  .side-nav ul::-webkit-scrollbar{display:none;}
  .side-nav a{border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;margin-left:0;font-size:13.5px;white-space:nowrap;}
  .side-nav a.is-active,.side-nav a:hover{border-color:var(--accent);}
  .side-note{display:none;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1/-1;}
}
@media (max-width:767px){
  .head-link{display:none;}
  .nav-burger{display:inline-flex;}
  .perk-grid{grid-template-columns:1fr;}
  .sec-bar{gap:10px;}
  .sec-bar .sec-hint{margin-left:0;}
}
@media (max-width:560px){
  body{font-size:16px;}
  .grid-container{padding:0 16px;}
  .head-main{height:64px;}
  .logo-main{font-size:17.5px;}
  .hero-lead{font-size:16.5px;}
  .hero-facts{font-size:12.5px;}
  .page-hero{padding-top:26px;}
  .topic-sec{padding:32px 0 36px;}
  .cond-item{grid-template-columns:40px 1fr;gap:12px;}
  .stat-item{padding:18px 16px;}
  .stat-item .num{font-size:24px;}
  .faq-q{font-size:16px;gap:10px;}
  .cta-band{margin-top:64px;}
  .faq-wrap{padding-top:64px;}
  .foot-grid{grid-template-columns:1fr;}
  .search-hint{display:none;}
  .cd-tag{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-padding-top:120px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;width:100%;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:17px;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-deep);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#F1EBE1;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}

@media (hover:hover){
  .btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-1);}
  .btn-ghost:hover{transform:translateY(-2px);}
}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(245,242,236,.95);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(20,22,26,.5);}
.head-main{padding:14px 0;transition:padding .24s var(--ease);}
.site-head.is-stuck .head-main{padding:8px 0;}
.head-main-inner{display:flex;align-items:center;gap:16px;}
.logo{display:flex;flex-direction:column;line-height:1.15;margin-right:auto;}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:4px;}
.head-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);color:var(--ink);
  cursor:pointer;transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);color:var(--accent);}
.head-link{font-size:15px;color:var(--ink-2);padding:8px 4px;border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);}
.head-link:hover{color:var(--accent);border-color:var(--accent);}
.nav-burger{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);color:var(--ink);cursor:pointer;
}
.search-bar{display:none;border-top:1px solid var(--line);background:var(--card);}
.search-bar.is-open{display:block;}
.search-inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.search-inner input[type="search"]{
  flex:1 1 260px;min-width:0;height:46px;padding:0 16px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--paper);color:var(--ink);font-size:15px;
  margin:0;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-inner input[type="search"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.14);}
.search-hint{font-size:13px;color:var(--muted);}
.tabs-row{border-top:1px solid var(--line);}
.tabs-nav{
  display:flex;align-items:center;gap:10px;overflow-x:auto;
  padding-top:12px;padding-bottom:12px;scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.tabs-nav::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;line-height:1.4;color:var(--ink-2);white-space:nowrap;background:transparent;
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink);}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li:not(:last-child)::after{content:"/";color:var(--line);}
.crumb a:hover{color:var(--accent);}
.crumb .current{color:var(--ink);}

/* ---------- Hero ---------- */
.page-hero{padding:34px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.1em;color:var(--accent);text-transform:uppercase;
  padding:5px 12px;border:1px solid rgba(210,84,43,.35);border-radius:999px;margin-bottom:20px;
}
.page-hero h1{
  font-size:56px;line-height:1.06;font-weight:800;letter-spacing:-.02em;
  max-width:15em;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.hero-lead{margin-top:20px;font-size:20px;line-height:1.7;color:var(--ink-2);max-width:34em;}
.hero-points{margin-top:20px;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);}
.hero-media{position:relative;}
.hero-media img{width:100%;height:380px;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
.hero-chip{
  position:absolute;right:-14px;bottom:-18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--sh-1);min-width:190px;
}
.hero-chip .chip-tag{font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.06em;}
.hero-chip .chip-num{font-family:var(--mono);font-size:26px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;}
.hero-chip .chip-txt{font-size:12px;color:var(--muted);}

/* ---------- 板块通用 ---------- */
.sec{padding:88px 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:32px;}
.sec-title-wrap{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;}
.sec-num{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.06em;}
.sec h2{font-size:38px;line-height:1.15;font-weight:700;letter-spacing:-.01em;}
.sec-note{font-size:14px;color:var(--muted);max-width:26em;line-height:1.7;}

/* ---------- 筛选 pill ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:32px;}
.pill{
  padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:transparent;
  font-size:13px;color:var(--ink-2);cursor:default;
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.pill.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- 资讯栏目卡片网格 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start;}
.news-card{
  background:var(--card);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);
}
.news-card-media{overflow:hidden;position:relative;background:var(--paper);}
.news-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.news-card:nth-child(1) .news-card-media{aspect-ratio:16/9;}
.news-card:nth-child(2) .news-card-media{aspect-ratio:4/3;}
.news-card:nth-child(3) .news-card-media{aspect-ratio:3/2;}
.news-card:nth-child(4) .news-card-media{aspect-ratio:16/10;}
.news-card:nth-child(5) .news-card-media{aspect-ratio:16/9;}
.news-card:nth-child(6) .news-card-media{aspect-ratio:5/4;}
.news-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.badge{
  align-self:flex-start;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:rgba(210,84,43,.1);color:var(--accent-deep);
}
.news-card h3{font-size:22px;line-height:1.35;font-weight:700;}
.news-card p{font-size:15px;line-height:1.8;color:var(--ink-2);}
.card-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--muted);font-family:var(--mono);font-variant-numeric:tabular-nums;}
.card-foot{margin-top:auto;padding-top:8px;}
@media (hover:hover){
  .news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6CEC0;}
  .news-card:hover .news-card-media img{transform:scale(1.04);}
}

/* ---------- 图文分栏 ---------- */
.feature-split{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center;}
.feature-split figure{margin:0;position:relative;}
.feature-split img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
.feature-split h2{font-size:36px;line-height:1.18;font-weight:700;letter-spacing:-.01em;margin-bottom:20px;}
.feature-split p{font-size:16.5px;line-height:1.85;color:var(--ink-2);margin-bottom:14px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.7;color:var(--ink);}
.check-list li i{color:var(--pine);font-size:14px;margin-top:7px;}

/* ---------- 编号条目 ---------- */
.ledger{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.ledger-sticky{position:sticky;top:130px;}
.ledger-sticky h2{font-size:36px;line-height:1.18;font-weight:700;letter-spacing:-.01em;margin-bottom:16px;}
.ledger-sticky p{font-size:15.5px;color:var(--muted);line-height:1.8;max-width:22em;}
.ledger-item{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:26px 0;border-top:1px solid var(--line);}
.ledger-item:last-child{border-bottom:1px solid var(--line);}
.ledger-num{font-family:var(--mono);font-size:32px;font-weight:700;line-height:1;color:var(--line);font-variant-numeric:tabular-nums;transition:color .22s var(--ease);}
.ledger-item:hover .ledger-num{color:var(--accent);}
.ledger-body h3{font-size:22px;line-height:1.35;font-weight:700;margin-bottom:8px;}
.ledger-body p{font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:44em;}

/* ---------- 数据条 ---------- */
.stats-band{margin-top:88px;background:var(--ink);color:#fff;padding:64px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;}
.stat{border-left:1px solid rgba(255,255,255,.16);padding-left:24px;}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--mono);font-size:40px;line-height:1.1;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
.stat-num span{font-size:16px;color:var(--accent);margin-left:4px;}
.stat-label{font-size:14px;color:rgba(255,255,255,.66);margin-top:8px;line-height:1.6;}

/* ---------- FAQ ---------- */
.faq{max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.faq-q:hover{color:var(--accent-deep);}
.faq-q .sign{font-family:var(--mono);font-size:22px;line-height:1;color:var(--accent);flex:0 0 auto;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a p{font-size:16px;line-height:1.85;color:var(--ink-2);padding:0 44px 24px 0;}

/* ---------- CTA ---------- */
.cta-band{margin-top:88px;background:var(--pine);color:#fff;padding:72px 0;}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.cta-band h2{font-size:38px;line-height:1.15;font-weight:700;letter-spacing:-.01em;margin-bottom:18px;}
.cta-band p.cta-lead{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:30em;}
.cta-list{margin-top:24px;display:grid;gap:12px;}
.cta-list li{display:flex;gap:12px;font-size:15.5px;color:rgba(255,255,255,.9);}
.cta-list li i{color:#fff;font-size:13px;margin-top:7px;}
.cta-box{background:#fff;color:var(--ink);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-2);}
.cta-box h3{font-size:22px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.cta-box p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:22px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-tip{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--paper);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.foot-brand .logo-main{font-size:19px;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--muted);max-width:22em;}
.foot-col h4{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:0;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:var(--muted);transition:color .18s var(--ease);}
.foot-col a:hover{color:var(--accent);}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  border-top:1px solid var(--line);padding:22px 0 28px;font-size:13px;color:var(--muted);
}
.foot-bottom .dot{color:var(--line);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{height:300px;}
  .hero-chip{right:12px;bottom:-16px;}
  .page-hero h1{font-size:44px;}
  .feature-split{grid-template-columns:1fr;gap:36px;}
  .feature-split img{height:320px;}
  .ledger{grid-template-columns:1fr;gap:28px;}
  .ledger-sticky{position:static;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec h2{font-size:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .head-link{display:none;}
  .nav-burger{display:inline-flex;}
  .head-main{padding:10px 0;}
  .page-hero{padding-top:24px;}
  .page-hero h1{font-size:34px;line-height:1.14;}
  .hero-lead{font-size:17px;}
  .sec{padding-top:60px;}
  .sec h2{font-size:26px;line-height:1.2;}
  .sec-head{padding-bottom:24px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card-body{padding:20px;}
  .news-card h3{font-size:20px;}
  .feature-split h2,.ledger-sticky h2,.cta-band h2{font-size:26px;}
  .feature-split img{height:240px;}
  .ledger-item{grid-template-columns:44px 1fr;gap:16px;padding:22px 0;}
  .ledger-num{font-size:24px;}
  .ledger-body h3{font-size:19px;}
  .stats-band{margin-top:60px;padding:48px 0;}
  .stat-num{font-size:30px;}
  .stat{padding-left:16px;}
  .faq-q{font-size:16.5px;padding:18px 0;}
  .faq-a p{padding-right:12px;}
  .cta-band{margin-top:60px;padding:52px 0;}
  .cta-box{padding:24px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .hero-media img{height:230px;}
  .hero-chip{padding:12px 16px;min-width:160px;}
  .hero-chip .chip-num{font-size:22px;}
}
@media (max-width:519px){
  .logo-main{font-size:18px;}
  .head-tools{gap:8px;}
  .icon-btn,.nav-burger{width:38px;height:38px;}
  .btn{padding:12px 22px;font-size:15px;}
  .btn-sm{padding:9px 16px;font-size:13px;}
  .stats-grid{grid-template-columns:1fr;gap:22px;}
  .stat{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.16);padding-top:18px;}
  .stat:first-child{border-top:0;padding-top:0;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
  --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:128px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
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;}
h1,h2,h3,h4,h5,p,ul,ol,dl,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}

.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(245,242,236,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:box-shadow .24s var(--ease);
}
.site-head.is-stuck{box-shadow:0 1px 0 var(--line);}
.head-main-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .24s var(--ease);
}
.site-head.is-stuck .head-main-inner{height:60px;}
.logo{display:flex;flex-direction:column;gap:2px;line-height:1.15;}
.logo-main{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.logo-sub{
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}
.head-tools{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--card);
  color:var(--ink-2);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.head-link{
  font-size:14px;
  color:var(--ink-2);
  padding:8px 4px;
  position:relative;
  transition:color .16s var(--ease);
}
.head-link::after{
  content:"";
  position:absolute;left:4px;right:4px;bottom:4px;height:1px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-burger{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--card);
  color:var(--ink);
}

/* 搜索条 */
.search-bar{
  max-height:0;
  overflow:hidden;
  background:var(--card);
  border-bottom:1px solid transparent;
  transition:max-height .3s var(--ease),border-color .3s var(--ease);
}
.search-bar.is-open{max-height:140px;border-bottom-color:var(--line);}
.search-inner{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  padding-top:16px;
  padding-bottom:16px;
}
.search-inner input[type="search"]{
  flex:1 1 260px;
  min-width:0;
  height:44px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--paper);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search-inner input[type="search"]:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(210,84,43,.14);
}
.search-hint{font-size:13px;color:var(--muted);}

/* 频道行 */
.tabs-row{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.55);
}
.tabs-nav{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  padding-top:10px;
  padding-bottom:10px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.tabs-nav::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  font-size:14px;
  color:var(--ink-2);
  white-space:nowrap;
  background:transparent;
  transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease);
}
.tab.is-active{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;border:1.5px solid var(--accent);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-light{background:#fff;color:var(--ink);border:1.5px solid #fff;}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:var(--radius-pill);}
.btn:active{transform:translateY(0);}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  padding-bottom:2px;
  border-bottom:1px solid var(--ink);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  line-height:1.6;
  background:var(--card);
  border:1px solid var(--line);
  color:var(--ink-2);
}
.pill-accent{
  background:rgba(210,84,43,.1);
  border-color:rgba(210,84,43,.28);
  color:var(--accent-deep);
  font-weight:600;
}
.pill-dark{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:28px 0 0;
  flex-wrap:wrap;
}
.crumb a{transition:color .16s var(--ease);}
.crumb span[aria-current]{color:var(--ink);}
.crumb .sep{color:var(--line);}

/* ============ Hero ============ */
.hero{padding-bottom:0;}
.hero-inner{padding:24px 0 72px;}
.hero-title{
  font-size:clamp(38px,6vw,66px);
  line-height:1.06;
  letter-spacing:-.02em;
  font-weight:800;
  margin-top:20px;
  max-width:15em;
}
.hero-title em{
  font-style:normal;
  color:var(--accent);
}
.hero-lead{
  margin-top:24px;
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.75;
  color:var(--ink-2);
  max-width:44em;
}
.hero-cta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-top:36px;
}
.hero-meta{
  margin-top:20px;
  font-size:13px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.hero-meta i{color:var(--accent);margin-right:6px;}

.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat{padding:28px 24px 28px 0;}
.stat + .stat{padding-left:24px;border-left:1px solid var(--line);}
.stat-num{
  display:block;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:32px;
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-label{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--muted);
}

/* ============ 通用板块 ============ */
.sec{padding:96px 0;}
.sec--tight{padding:72px 0;}
.sec-head{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:baseline;
  gap:16px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
  margin-bottom:48px;
}
.sec-idx{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
}
.sec-title{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.15;
  letter-spacing:-.01em;
  font-weight:700;
}
.sec-note{font-size:14px;color:var(--muted);}

/* ============ Zigzag ============ */
.zig{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:48px;
  align-items:center;
  padding:56px 0;
  border-top:1px solid var(--line);
}
.zig:first-of-type{border-top:0;padding-top:0;}
.zig-media{grid-column:span 6;min-width:0;}
.zig-body{grid-column:span 6;min-width:0;}
.zig--rev .zig-media{order:2;}
.zig--rev .zig-body{order:1;}
.zig-figure{
  overflow:hidden;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:var(--sh-1);
}
.zig-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.zig-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
  display:block;
  margin-bottom:12px;
}
.zig-body h3{
  font-size:clamp(22px,2.4vw,26px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
}
.zig-body p{
  margin-top:16px;
  color:var(--ink-2);
  max-width:34em;
}
.zig-list{margin-top:24px;display:grid;gap:12px;}
.zig-list li{
  position:relative;
  padding-left:22px;
  font-size:15.5px;
  color:var(--ink-2);
}
.zig-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  background:var(--accent);
  border-radius:2px;
}

/* ============ 服务组合 ============ */
.combo-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
.combo{
  grid-column:span 6;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.combo h3{
  font-size:22px;
  line-height:1.35;
  font-weight:700;
  margin-top:14px;
}
.combo p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.combo-static{
  margin-top:20px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.combo--wide{
  grid-column:span 12;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
  padding:36px;
}
.combo--wide .combo-side{
  border-left:1px solid var(--line);
  padding-left:32px;
  display:grid;
  gap:14px;
}
.combo-side .combo-kv{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  font-size:15px;
  border-bottom:1px solid var(--line);
  padding-bottom:12px;
}
.combo-kv b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 适用场景 ============ */
.scene-list{border-top:1px solid var(--line);}
.scene-item{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:32px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background .16s var(--ease);
}
.scene-tag{
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:flex-start;
}
.scene-tag h3{font-size:19px;line-height:1.4;font-weight:700;}
.scene-body{color:var(--ink-2);max-width:46em;}
.scene-body .scene-hint{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--muted);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  text-align:left;
  font-size:18px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  transition:color .16s var(--ease);
}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  margin-top:4px;
  position:relative;
  color:var(--accent);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a-inner{
  padding:0 40px 24px 0;
  color:var(--ink-2);
  font-size:16.5px;
  line-height:1.8;
  max-width:44em;
}

/* ============ CTA ============ */
.cta{
  background:var(--pine);
  color:#fff;
  padding:72px 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}
.cta-title{
  font-size:clamp(26px,3.2vw,36px);
  line-height:1.2;
  letter-spacing:-.01em;
  font-weight:700;
}
.cta-text{
  margin-top:16px;
  color:rgba(255,255,255,.78);
  max-width:34em;
}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15.5px;
  color:rgba(255,255,255,.86);
}
.cta-points i{color:var(--accent);margin-top:6px;}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:16px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-card);
  padding:28px;
}
.cta-actions .btn{width:100%;}
.cta-actions .cta-small{
  font-size:13px;
  color:rgba(255,255,255,.66);
  line-height:1.7;
}
.cta-actions .cta-link{
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.5);
  padding-bottom:2px;
  font-size:15px;
  font-weight:600;
  align-self:flex-start;
  transition:border-color .16s var(--ease);
}

/* ============ 页脚 ============ */
.site-foot{
  border-top:1px solid var(--line);
  background:var(--paper);
  padding-top:64px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:48px;
}
.foot-brand .logo-main{font-size:19px;}
.foot-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  max-width:26em;
}
.foot-col h4{
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:16px;
  color:var(--ink);
}
.foot-col ul{display:grid;gap:10px;}
.foot-col li a{
  font-size:14px;
  color:var(--ink-2);
  transition:color .16s var(--ease);
}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 32px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.foot-bottom .dot{color:var(--line);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (hover:hover){
  .btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-2px);}
  .btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-2px);}
  .btn-light:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
  .icon-btn:hover{border-color:var(--ink);color:var(--ink);}
  .btn-sm:hover{transform:translateY(-1px);}
  .head-link:hover{color:var(--accent);}
  .head-link:hover::after{transform:scaleX(1);}
  .tab:hover{border-color:var(--ink);color:var(--ink);}
  .tab.is-active:hover{color:#fff;border-color:var(--ink);}
  .combo:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D0C2;}
  .zig-figure:hover img{transform:scale(1.04);}
  .scene-item:hover{background:#FAF8F4;}
  .link-arrow:hover{color:var(--accent);border-color:var(--accent);}
  .faq-q:hover{color:var(--accent);}
  .faq-q:hover .faq-icon{color:var(--accent-deep);}
  .foot-col li a:hover{color:var(--accent);}
  .crumb a:hover{color:var(--accent);}
  .cta-actions .cta-link:hover{border-color:#fff;}
  .nav-burger:hover{border-color:var(--ink);}
  .search-inner input[type="search"]:hover{border-color:#CFC7B8;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .sec{padding:72px 0;}
  .sec--tight{padding:56px 0;}
  .zig{gap:32px;padding:44px 0;}
  .zig-media,.zig-body{grid-column:span 12;}
  .zig--rev .zig-media{order:0;}
  .zig--rev .zig-body{order:0;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .combo--wide{grid-template-columns:1fr;gap:28px;}
  .combo--wide .combo-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .scene-item{grid-template-columns:180px 1fr;gap:24px;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .head-main-inner{height:64px;}
  .site-head.is-stuck .head-main-inner{height:58px;}
  .head-tools .head-link,
  .head-tools .btn,
  .head-tools .icon-btn{display:none;}
  .nav-burger{display:inline-flex;}
  .head-tools{gap:0;}
  .site-head.is-menu-open .head-tools{
    position:absolute;
    top:calc(100% - 6px);
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    width:220px;
    padding:14px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--sh-2);
  }
  .site-head.is-menu-open .head-tools .head-link,
  .site-head.is-menu-open .head-tools .btn,
  .site-head.is-menu-open .head-tools .icon-btn{display:flex;width:100%;}
  .site-head.is-menu-open .head-tools .icon-btn{width:44px;height:44px;}
  .site-head.is-menu-open .head-tools .head-link{padding:10px 4px;}
  .hero-inner{padding:16px 0 48px;}
  .hero-title{max-width:none;}
  .hero-cta .btn{flex:1 1 auto;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat{padding:20px 16px 20px 0;}
  .stat + .stat{padding-left:0;border-left:0;}
  .stat:nth-child(even){padding-left:16px;border-left:1px solid var(--line);}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .stat-num{font-size:26px;}
  .sec-head{grid-template-columns:auto 1fr;gap:12px 12px;margin-bottom:32px;}
  .sec-note{grid-column:1 / -1;font-size:13px;}
  .combo{grid-column:span 12;padding:22px;}
  .combo--wide{padding:24px;}
  .scene-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .faq-q{font-size:17px;padding:18px 0;}
  .faq-a-inner{padding-right:0;}
  .cta{padding:56px 0;}
  .cta-actions{padding:22px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-foot{padding-top:48px;}
}

@media (max-width:519px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .logo-main{font-size:18px;}
  .tab{padding:7px 13px;font-size:13px;}
  .hero-title{font-size:32px;line-height:1.12;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-meta{font-size:12px;gap:12px;}
  .search-inner input[type="search"]{flex:1 1 100%;}
  .zig{gap:24px;padding:36px 0;}
  .foot-bottom{font-size:12px;}
}

/* roulang page: category4 */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --soft:#FAF8F4;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --t:cubic-bezier(.22,.8,.28,1);
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .16s var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.show-for-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ===== 按钮 / 标签 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .16s var(--t),background-color .16s var(--t),color .16s var(--t),border-color .16s var(--t),box-shadow .24s var(--t);
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-light{background:#fff;color:var(--ink);border-color:transparent}
.btn-line{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
@media (hover:hover){
  .btn:hover{transform:translateY(-2px)}
  .btn-primary:hover{background:var(--accent-deep);color:#fff}
  .btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
  .btn-light:hover{background:var(--paper);color:var(--ink);box-shadow:var(--sh-2)}
  .btn-line:hover{background:#fff;color:var(--pine);border-color:#fff}
}
.btn:active{transform:translateY(0)}
.link-cta{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:3px;
  transition:color .16s var(--t),border-color .16s var(--t);
}
.link-cta i{font-size:12px;transition:transform .2s var(--t)}
@media (hover:hover){
  .link-cta:hover{border-color:var(--accent);color:var(--accent)}
  .link-cta:hover i{transform:translateX(3px)}
}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;line-height:1.4;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.pill-accent{background:rgba(210,84,43,.1);border-color:rgba(210,84,43,.28);color:var(--accent-deep);font-weight:600}
.pill-dark{background:var(--ink);border-color:var(--ink);color:#fff}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* ===== 头部导航 ===== */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(245,242,236,.92);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--t);
}
.site-head.is-scrolled{box-shadow:0 10px 28px -22px rgba(20,22,26,.42)}
.head-main-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.logo{display:inline-flex;flex-direction:column;gap:2px;line-height:1.1}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo-sub{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.logo:hover .logo-main{color:var(--accent)}
.head-tools{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .16s var(--t),color .16s var(--t),background-color .16s var(--t);
}
@media (hover:hover){.icon-btn:hover{border-color:var(--ink);color:var(--accent)}}
.head-link{font-size:14px;color:var(--ink-2);padding:6px 4px}
.head-link:hover{color:var(--accent)}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.search-bar{
  max-height:0;overflow:hidden;background:#fff;border-top:1px solid transparent;
  transition:max-height .3s var(--t),border-color .3s var(--t);
}
.search-bar.is-open{max-height:120px;border-top-color:var(--line);border-bottom:1px solid var(--line)}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 24px;flex-wrap:wrap}
.search-inner input[type="search"]{
  flex:1 1 240px;min-width:180px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--soft);
  font-size:15px;color:var(--ink);transition:border-color .16s var(--t),background-color .16s var(--t);
}
.search-inner input[type="search"]:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(210,84,43,.14)}
.search-hint{font-size:13px;color:var(--muted)}
.tabs-row{border-top:1px solid var(--line);background:rgba(255,255,255,.45)}
.tabs-nav{
  display:flex;align-items:center;gap:8px;min-height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.tabs-nav::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);background:transparent;white-space:nowrap;
  transition:border-color .16s var(--t),background-color .16s var(--t),color .16s var(--t);
}
@media (hover:hover){.tab:hover{border-color:var(--ink);color:var(--ink)}}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.tab.is-active:hover{color:#fff;border-color:var(--ink)}

/* ===== 通用板块 ===== */
.sec{padding:96px 0}
.sec-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head-left{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.sec-no{font-family:var(--mono);font-size:13px;letter-spacing:.16em;color:var(--accent);font-weight:700}
.sec-title{font-size:36px;line-height:1.15;font-weight:700;letter-spacing:-.01em}
.sec-note{font-size:14px;color:var(--muted);max-width:280px}
.lead{font-size:19px;line-height:1.75;color:var(--ink-2);max-width:70ch}
.body-text{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:70ch}

/* ===== 面包屑 ===== */
.crumb{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:28px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sepc{color:var(--line)}
.crumb .cur{color:var(--ink);font-weight:600}

/* ===== Hero ===== */
.page-hero{padding:40px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.page-hero h1{
  font-size:clamp(32px,4.4vw,58px);line-height:1.08;font-weight:800;letter-spacing:-.02em;
  max-width:16ch;
}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{margin-top:20px;font-size:19px;line-height:1.7;color:var(--ink-2);max-width:46ch}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:32px}
.hero-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px;font-size:13px;color:var(--muted)}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.hero-badge{
  position:absolute;right:-16px;bottom:-24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-2);min-width:190px;
}
.hero-badge .pill{margin-bottom:10px}
.hero-badge strong{display:block;font-size:15px;line-height:1.5;color:var(--ink)}
.hero-badge span.small{display:block;font-size:13px;color:var(--muted);margin-top:4px}

/* ===== 时间轴 ===== */
.timeline-wrap{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
.timeline-aside{position:sticky;top:140px}
.timeline-aside h2{font-size:34px;line-height:1.16;font-weight:700;letter-spacing:-.01em;margin-top:14px}
.timeline-aside p{margin-top:16px;font-size:15px;line-height:1.8;color:var(--muted)}
.aside-facts{margin-top:28px;border-top:1px solid var(--line);padding-top:20px;display:grid;gap:16px}
.fact-row{display:flex;align-items:baseline;gap:12px}
.fact-row b{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.fact-row span{font-size:13px;color:var(--muted);line-height:1.6}
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:56px;top:12px;bottom:12px;width:1px;background:var(--line)}
.step{position:relative;display:grid;grid-template-columns:112px 1fr;gap:0;padding:0 0 44px 0}
.step:last-child{padding-bottom:0}
.step-no{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:48px;line-height:1;font-weight:700;color:var(--line);
  transition:color .24s var(--t);
}
.step-body{padding-left:24px;padding-bottom:0}
.step-body h3{font-size:23px;line-height:1.35;font-weight:700;margin-bottom:10px}
.step-body p{font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:62ch}
.step-list{margin-top:14px;display:grid;gap:8px}
.step-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.8}
.step-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--accent);border-radius:1px}
.step-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
@media (hover:hover){
  .step:hover .step-no{color:var(--accent)}
}
.step.is-now .step-no{color:var(--accent)}

/* ===== 准备清单 ===== */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prep-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0;overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--t),box-shadow .24s var(--t),border-color .24s var(--t);
  display:flex;flex-direction:column;
}
.prep-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--t)}
.prep-card .pc-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.prep-card h3{font-size:20px;line-height:1.4;font-weight:700}
.prep-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.prep-card .pc-foot{margin-top:auto;padding-top:12px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
@media (hover:hover){
  .prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D1C4}
  .prep-card:hover img{transform:scale(1.04)}
}

/* ===== 深色卡点区 ===== */
.dark-sec{background:var(--ink);color:#fff;padding:96px 0}
.dark-sec .sec-title,.dark-sec h3{color:#fff}
.dark-sec .sec-note{color:rgba(255,255,255,.62)}
.dark-sec .lead,.dark-sec p{color:rgba(255,255,255,.74)}
.trouble-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;margin-top:8px}
.trouble-item{padding:26px 0;border-top:1px solid rgba(255,255,255,.16)}
.trouble-item .t-no{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--accent);margin-bottom:10px;display:block}
.trouble-item h3{font-size:20px;line-height:1.4;font-weight:700;margin-bottom:8px}
.trouble-item p{font-size:15px;line-height:1.8}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  transition:background-color .16s var(--t),color .16s var(--t);
}
.faq-q .fico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:14px;line-height:1;
  transition:transform .24s var(--t),background-color .16s var(--t);
}
.faq-q[aria-expanded="true"] .fico{transform:rotate(45deg);background:rgba(210,84,43,.1)}
@media (hover:hover){.faq-q:hover{color:var(--accent)}}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--t)}
.faq-a p{padding-bottom:22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:62ch}

/* ===== CTA ===== */
.cta-sec{background:var(--pine);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-sec h2{font-size:34px;line-height:1.2;font-weight:800;letter-spacing:-.01em;max-width:16ch}
.cta-sec p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.8;margin-top:16px;max-width:44ch}
.cta-points{margin-top:24px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-points i{color:#fff;margin-top:5px;font-size:13px}
.cta-box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:var(--r-card);padding:28px}
.cta-box h3{font-size:19px;font-weight:700;line-height:1.4}
.cta-box .row-line{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px;color:rgba(255,255,255,.74)}
.cta-box .row-line:last-of-type{border-bottom:0}
.cta-box .row-line b{color:#fff;font-weight:600}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}

/* ===== 页脚 ===== */
.site-foot{background:var(--paper);border-top:1px solid var(--line);padding:64px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand .logo-main{display:block;font-size:19px}
.foot-brand .logo-sub{display:block;margin-top:4px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--muted);max-width:32ch}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--ink-2)}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted);
}
.foot-bottom .dot{color:var(--line)}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--t),transform .42s var(--t)}
.reveal.is-in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .page-hero h1{max-width:22ch}
  .hero-badge{right:12px;bottom:-18px}
  .timeline-wrap{grid-template-columns:1fr;gap:36px}
  .timeline-aside{position:static}
  .prep-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1 / -1}
  .trouble-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  html{scroll-padding-top:118px}
  .sec{padding:60px 0}
  .sec-tight{padding:48px 0}
  .sec-title{font-size:26px}
  .sec-head{margin-bottom:28px}
  .lead{font-size:17px}
  .head-main-inner{min-height:64px;gap:10px}
  .logo-main{font-size:17px}
  .logo-sub{font-size:10px;letter-spacing:.1em}
  .head-link{display:none}
  .nav-burger{display:inline-flex}
  .head-tools.is-open .head-link{display:inline-flex;position:absolute;top:100%;right:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);padding:10px 16px;box-shadow:var(--sh-2)}
  .tabs-nav{min-height:46px;padding-right:32px}
  .page-hero{padding:24px 0 48px}
  .page-hero h1{font-size:32px;max-width:100%}
  .hero-sub{font-size:16.5px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-badge{position:static;margin-top:16px;box-shadow:var(--sh-1)}
  .timeline::before{left:26px}
  .step{grid-template-columns:64px 1fr;padding-bottom:32px}
  .step-no{font-size:32px}
  .step-body{padding-left:16px}
  .step-body h3{font-size:19px}
  .step-body p{font-size:16px}
  .prep-grid{grid-template-columns:1fr}
  .prep-card .pc-body{padding:20px}
  .dark-sec{padding:60px 0}
  .faq-q{font-size:16px;padding:18px 0}
  .cta-sec{padding:52px 0}
  .cta-sec h2{font-size:26px}
  .cta-box{padding:22px}
  .cta-actions .btn{flex:1 1 100%}
  .site-foot{padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-bottom{font-size:12px}
}
@media (max-width:519px){
  .grid-container{padding:0 18px}
  .contact-grid,.foot-grid{grid-template-columns:1fr}
  .foot-brand{grid-column:auto}
  .hero-actions{gap:12px}
  .btn{padding:13px 22px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category5 */
:root{
      --ink:#14161A;
      --ink-2:#2B3038;
      --paper:#F5F2EC;
      --card:#FFFFFF;
      --line:#E2DCD1;
      --accent:#D2542B;
      --accent-deep:#A83E1C;
      --pine:#1E4B43;
      --muted:#6E6A62;
      --focus:#D2542B;
      --r-btn:10px;
      --r-card:16px;
      --r-img:12px;
      --r-pill:999px;
      --sh-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px -14px rgba(20,22,26,.14);
      --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
      --ease:cubic-bezier(.22,.8,.28,1);
      --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
      --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{scroll-behavior:smooth;scroll-padding-top:120px;-webkit-text-size-adjust:100%;}
    body{
      margin:0;
      background:var(--paper);
      color:var(--ink);
      font-family:var(--sans);
      font-size:17px;
      line-height:1.85;
      -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
    ul,ol{list-style:none;}
    img{display:block;max-width:100%;height:auto;}
    a{color:inherit;text-decoration:none;}
    button{font-family:inherit;}
    :focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px;}

    .grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}

    /* ---------- 通用文字 ---------- */
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      font-family:var(--mono);font-size:12px;letter-spacing:.08em;
      color:var(--accent);text-transform:uppercase;font-weight:600;
    }
    .eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}
    .lead{font-size:19px;line-height:1.75;color:var(--ink-2);max-width:62ch;}
    .muted{color:var(--muted);font-size:13px;line-height:1.7;}
    .num{font-family:var(--mono);font-variant-numeric:tabular-nums;}

    /* ---------- 按钮 ---------- */
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:14px 28px;border-radius:var(--r-btn);
      font-size:15px;font-weight:600;line-height:1.2;
      border:1.5px solid transparent;cursor:pointer;
      transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease),box-shadow .24s var(--ease);
    }
    .btn-sm{padding:10px 18px;font-size:14px;}
    .btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
    .btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:var(--sh-2);}
    .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
    .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
    .btn-ghost:hover{background:var(--ink);color:#fff;}
    .btn-light{background:#fff;color:var(--ink);}
    .btn-light:hover{background:var(--paper);transform:translateY(-2px);}
    .link-cta{
      display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;
      border-bottom:1px solid var(--ink);padding-bottom:2px;
      transition:color .18s var(--ease),border-color .18s var(--ease);
    }
    .link-cta:hover{color:var(--accent);border-color:var(--accent);}

    /* ---------- 头部导航 ---------- */
    .site-head{
      position:sticky;top:0;z-index:60;
      background:rgba(245,242,236,.94);
      -webkit-backdrop-filter:blur(8px);
      backdrop-filter:blur(8px);
      border-bottom:1px solid transparent;
      transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
    }
    .site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(20,22,26,.5);}
    .head-main-inner{
      display:flex;align-items:center;justify-content:space-between;
      gap:24px;height:72px;
      transition:height .24s var(--ease);
    }
    .site-head.is-stuck .head-main-inner{height:58px;}
    .logo{display:flex;flex-direction:column;line-height:1.1;}
    .logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
    .logo-sub{font-size:11px;color:var(--muted);letter-spacing:.12em;margin-top:4px;}
    .head-tools{display:flex;align-items:center;gap:14px;}
    .icon-btn{
      width:40px;height:40px;border-radius:var(--r-pill);
      display:inline-flex;align-items:center;justify-content:center;
      background:transparent;border:1px solid var(--line);color:var(--ink-2);cursor:pointer;
      transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
    }
    .icon-btn:hover{border-color:var(--ink);color:var(--ink);background:#fff;}
    .head-link{font-size:14px;font-weight:600;color:var(--ink-2);}
    .head-link:hover{color:var(--accent);}
    .nav-burger{
      display:none;width:40px;height:40px;border-radius:var(--r-pill);
      border:1px solid var(--line);background:transparent;color:var(--ink);
      align-items:center;justify-content:center;cursor:pointer;
    }

    .search-bar{display:none;border-top:1px solid var(--line);background:#fff;}
    .search-bar.is-open{display:block;}
    .search-inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
    .search-inner input[type="search"]{
      flex:1 1 260px;min-width:0;margin:0;
      padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
      background:var(--paper);font-size:15px;color:var(--ink);height:auto;
      transition:border-color .18s var(--ease),background .18s var(--ease);
    }
    .search-inner input[type="search"]:focus{border-color:var(--accent);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(210,84,43,.14);}
    .search-hint{font-size:13px;color:var(--muted);}

    .tabs-row{
      border-top:1px solid var(--line);
      position:relative;
    }
    .tabs-nav{
      display:flex;align-items:center;gap:8px;
      padding-top:10px;padding-bottom:10px;
      overflow-x:auto;white-space:nowrap;
      scrollbar-width:none;-ms-overflow-style:none;
      transition:padding .24s var(--ease);
    }
    .tabs-nav::-webkit-scrollbar{display:none;}
    .site-head.is-stuck .tabs-nav{padding-top:7px;padding-bottom:7px;}
    .tab{
      flex:0 0 auto;
      padding:7px 16px;border-radius:var(--r-pill);
      border:1px solid var(--line);background:transparent;
      font-size:14px;font-weight:500;color:var(--ink-2);
      transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
    }
    .tab:hover{border-color:var(--ink);color:var(--ink);}
    .tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600;}
    .tab.is-active:hover{background:var(--ink);color:#fff;}

    .nav-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
    .nav-drawer.is-open{display:block;}
    .nav-drawer ul{padding:12px 24px 18px;display:grid;gap:2px;}
    .nav-drawer a{display:block;padding:11px 4px;font-size:15px;border-bottom:1px solid var(--line);}

    /* ---------- 面包屑 ---------- */
    .crumb-wrap{padding-top:28px;}
    .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
    .crumb a:hover{color:var(--accent);}
    .crumb .sep{color:var(--line);}
    .crumb .cur{color:var(--ink);font-weight:600;}

    /* ---------- Hero ---------- */
    .page-hero{padding:32px 0 56px;}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
    .page-hero h1{
      font-size:clamp(32px,4.4vw,54px);
      line-height:1.1;font-weight:800;letter-spacing:-.02em;
      margin:16px 0 0;max-width:20ch;
    }
    .page-hero h1 em{font-style:normal;color:var(--accent);}
    .page-hero .lead{margin-top:20px;}
    .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px;}
    .hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:13px;color:var(--muted);}
    .hero-meta .d{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
    .hero-figure{position:relative;}
    .hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);}
    .hero-card{
      position:absolute;left:-24px;bottom:-24px;width:min(300px,86%);
      background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
      padding:18px 20px;box-shadow:var(--sh-1);
    }
    .hero-card .badge{margin-bottom:10px;}
    .hero-card ul{display:grid;gap:8px;margin-top:10px;}
    .hero-card li{display:flex;gap:8px;font-size:13.5px;line-height:1.6;color:var(--ink-2);}
    .hero-card li i{color:var(--accent);margin-top:4px;font-size:12px;}

    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:4px 12px;border-radius:var(--r-pill);
      font-size:12px;font-weight:600;line-height:1.4;
      background:rgba(210,84,43,.1);color:var(--accent-deep);border:1px solid rgba(210,84,43,.2);
    }
    .badge-ink{background:var(--ink);color:#fff;border-color:var(--ink);}
    .badge-plain{background:#fff;color:var(--ink-2);border-color:var(--line);}

    /* ---------- 数据条 ---------- */
    .stat-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
    .stat-row{display:grid;grid-template-columns:repeat(3,1fr);}
    .stat-item{padding:28px 0;display:flex;align-items:baseline;gap:14px;}
    .stat-item + .stat-item{border-left:1px solid var(--line);padding-left:32px;}
    .stat-num{font-family:var(--mono);font-size:34px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1;}
    .stat-label{font-size:14px;color:var(--ink-2);}

    /* ---------- 板块 ---------- */
    .sec{padding:96px 0;}
    .sec-tight{padding:64px 0;}
    .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
    .sec-head .lead-inline{font-size:15px;color:var(--muted);max-width:38ch;text-align:right;}
    .sec-index{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.08em;display:block;margin-bottom:10px;}
    .sec-head h2{font-size:clamp(26px,3vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.01em;margin:0;}
    .sec-head h2 + p{margin-top:10px;font-size:15px;color:var(--muted);}

    /* ---------- 对比表 ---------- */
    .table-wrap{
      background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
      overflow:hidden;box-shadow:var(--sh-1);
    }
    .table-scroll{overflow-x:auto;}
    table.cmp{width:100%;min-width:820px;border-collapse:collapse;margin:0;background:transparent;}
    table.cmp thead th{
      background:var(--paper);
      font-size:13px;font-weight:600;color:var(--ink-2);
      padding:18px 22px;text-align:left;border-bottom:1px solid var(--line);
      white-space:nowrap;
    }
    table.cmp thead th:first-child{color:var(--muted);font-weight:500;}
    table.cmp tbody th,
    table.cmp tbody td{
      padding:18px 22px;text-align:left;
      border-bottom:1px solid var(--line);
      font-size:15px;line-height:1.7;color:var(--ink-2);
      vertical-align:top;background:transparent;
    }
    table.cmp tbody th{font-weight:600;color:var(--ink);white-space:nowrap;width:20%;}
    table.cmp tbody tr:last-child th,
    table.cmp tbody tr:last-child td{border-bottom:0;}
    table.cmp tbody tr:hover th,
    table.cmp tbody tr:hover td{background:#FAF8F4;}
    table.cmp td strong{color:var(--ink);font-weight:600;}
    .cell-tag{
      display:inline-block;margin-top:6px;padding:2px 9px;border-radius:var(--r-pill);
      font-size:11.5px;line-height:1.6;background:var(--paper);color:var(--muted);border:1px solid var(--line);
    }
    .table-note{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:var(--muted);}
    .table-note i{color:var(--accent);margin-top:4px;}

    /* ---------- 场景卡 ---------- */
    .scene-row{margin-top:0;}
    .scene-card{
      display:flex;flex-direction:column;height:100%;
      background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
      overflow:hidden;box-shadow:var(--sh-1);
      transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
    }
    .scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D1C4;}
    .scene-thumb{overflow:hidden;}
    .scene-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease);}
    .scene-card:hover .scene-thumb img{transform:scale(1.04);}
    .scene-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
    .scene-body h3{font-size:21px;line-height:1.35;font-weight:700;margin:0;}
    .scene-body p{font-size:15px;line-height:1.75;color:var(--ink-2);}
    .scene-body .muted{margin-top:auto;padding-top:8px;}

    /* ---------- 差异明细 ---------- */
    .split{display:grid;grid-template-columns:4fr 8fr;gap:56px;}
    .split-side{position:sticky;top:132px;align-self:start;}
    .split-side h2{font-size:clamp(26px,2.8vw,36px);line-height:1.18;font-weight:700;margin:12px 0 0;}
    .split-side p{margin-top:14px;font-size:15px;color:var(--muted);max-width:32ch;}
    .detail-list{border-top:1px solid var(--line);}
    .detail-item{
      display:grid;grid-template-columns:88px 1fr;gap:24px;
      padding:28px 0;border-bottom:1px solid var(--line);
    }
    .detail-item .idx{
      font-family:var(--mono);font-size:30px;font-weight:700;line-height:1;
      color:var(--line);font-variant-numeric:tabular-nums;
      transition:color .24s var(--ease);
    }
    .detail-item:hover .idx{color:var(--accent);}
    .detail-item h3{font-size:20px;font-weight:700;margin:0 0 8px;line-height:1.4;}
    .detail-item p{font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:64ch;}

    /* ---------- 步骤时间轴 ---------- */
    .steps{position:relative;padding-left:0;}
    .step{
      display:grid;grid-template-columns:96px 1fr;gap:28px;
      position:relative;padding-bottom:40px;
    }
    .step:last-child{padding-bottom:0;}
    .step::before{
      content:"";position:absolute;left:47px;top:56px;bottom:0;width:1px;background:var(--line);
    }
    .step:last-child::before{display:none;}
    .step-num{
      width:56px;height:56px;border-radius:50%;
      border:1px solid var(--line);background:var(--card);
      display:flex;align-items:center;justify-content:center;
      font-family:var(--mono);font-size:17px;font-weight:700;color:var(--ink);
      position:relative;z-index:1;
      transition:border-color .24s var(--ease),color .24s var(--ease);
    }
    .step:hover .step-num{border-color:var(--accent);color:var(--accent);}
    .step-body{padding-top:8px;}
    .step-body h3{font-size:19px;font-weight:700;margin:0 0 6px;}
    .step-body p{font-size:15px;line-height:1.8;color:var(--ink-2);max-width:60ch;}

    /* ---------- FAQ ---------- */
    .faq-layout{display:grid;grid-template-columns:8fr 4fr;gap:56px;align-items:start;}
    .faq-list{border-top:1px solid var(--line);}
    .faq-item{border-bottom:1px solid var(--line);}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
      padding:22px 0;background:transparent;border:0;cursor:pointer;
      font-size:17.5px;font-weight:600;color:var(--ink);text-align:left;line-height:1.5;
      transition:color .18s var(--ease),background .18s var(--ease);
    }
    .faq-q:hover{color:var(--accent);}
    .faq-q .sign{
      flex:0 0 auto;width:26px;height:26px;border-radius:50%;
      display:inline-flex;align-items:center;justify-content:center;
      color:var(--accent);border:1px solid rgba(210,84,43,.35);font-size:13px;font-weight:700;
      transition:transform .24s var(--ease),background .18s var(--ease),color .18s var(--ease);
    }
    .faq-item.is-open .faq-q{color:var(--ink);}
    .faq-item.is-open .faq-q .sign{background:var(--accent);color:#fff;border-color:var(--accent);transform:rotate(180deg);}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
    .faq-a p{padding:0 0 24px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:68ch;}

    .side-card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
      padding:28px;box-shadow:var(--sh-1);
    }
    .side-card h3{font-size:19px;font-weight:700;margin:0 0 10px;}
    .side-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);}
    .side-card ul{margin:18px 0 22px;display:grid;gap:10px;}
    .side-card li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7;}
    .side-card li i{color:var(--accent);margin-top:5px;font-size:12px;}
    .side-card .btn{width:100%;}

    /* ---------- CTA ---------- */
    .cta-sec{background:var(--pine);color:#fff;padding:78px 0;}
    .cta-grid{display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center;}
    .cta-sec .eyebrow{color:#E7B7A4;}
    .cta-sec .eyebrow::before{background:#E7B7A4;}
    .cta-sec h2{font-size:clamp(26px,3vw,38px);line-height:1.18;font-weight:700;margin:14px 0 16px;color:#fff;}
    .cta-sec p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.78);max-width:52ch;}
    .cta-points{display:grid;gap:12px;margin-top:26px;}
    .cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
    .cta-points i{color:#F0C9B8;margin-top:5px;font-size:13px;}
    .cta-panel{
      background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
      border-radius:var(--r-card);padding:30px;
    }
    .cta-panel h3{font-size:19px;font-weight:700;color:#fff;margin:0 0 8px;}
    .cta-panel p{font-size:14px;color:rgba(255,255,255,.72);}
    .cta-panel .btn{width:100%;margin-top:18px;}
    .cta-panel .link-light{
      display:block;text-align:center;margin-top:14px;font-size:14px;color:rgba(255,255,255,.8);
      border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:2px;
    }
    .cta-panel .link-light:hover{color:#fff;border-color:#fff;}

    /* ---------- 页脚 ---------- */
    .site-foot{border-top:1px solid var(--line);background:var(--paper);padding:64px 0 28px;}
    .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
    .foot-brand .logo-main{display:block;font-size:19px;}
    .foot-brand .logo-sub{display:block;margin-top:6px;}
    .foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--muted);max-width:30ch;}
    .foot-col h4{font-size:14px;font-weight:700;margin:0 0 16px;color:var(--ink);}
    .foot-col ul{display:grid;gap:10px;}
    .foot-col a{font-size:14px;color:var(--ink-2);}
    .foot-col a:hover{color:var(--accent);}
    .foot-bottom{
      display:flex;flex-wrap:wrap;align-items:center;gap:10px;
      margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
      font-size:13px;color:var(--muted);
    }
    .foot-bottom .dot{color:var(--line);}

    /* ---------- 动效 ---------- */
    @keyframes riseIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
    .page-hero .eyebrow,.page-hero h1,.page-hero .lead,.hero-actions,.hero-meta{animation:riseIn .55s var(--ease) both;}
    .page-hero h1{animation-delay:.08s;}
    .page-hero .lead{animation-delay:.16s;}
    .hero-actions{animation-delay:.24s;}
    .hero-meta{animation-delay:.3s;}

    @media (prefers-reduced-motion:reduce){
      *{animation:none !important;transition:none !important;}
      html{scroll-behavior:auto;}
    }

    /* ---------- 响应式 ---------- */
    @media (max-width:1023px){
      .hero-grid{grid-template-columns:1fr;gap:44px;}
      .page-hero h1{max-width:100%;}
      .hero-card{position:static;width:100%;margin-top:16px;box-shadow:none;}
      .split{grid-template-columns:1fr;gap:28px;}
      .split-side{position:static;}
      .faq-layout{grid-template-columns:1fr;gap:36px;}
      .cta-grid{grid-template-columns:1fr;gap:36px;}
      .sec{padding:72px 0;}
      .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
      .sec-head .lead-inline{text-align:left;max-width:100%;}
      .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
      .nav-burger{display:inline-flex;}
      .head-link{display:none;}
    }
    @media (max-width:767px){
      body{font-size:16px;}
      .head-main-inner{height:64px;}
      .site-head.is-stuck .head-main-inner{height:56px;}
      .logo-main{font-size:17px;}
      .stat-row{grid-template-columns:1fr;}
      .stat-item + .stat-item{border-left:0;border-top:1px solid var(--line);padding-left:0;}
      .stat-item{padding:20px 0;}
      .detail-item{grid-template-columns:56px 1fr;gap:16px;padding:24px 0;}
      .detail-item .idx{font-size:24px;}
      .step{grid-template-columns:64px 1fr;gap:18px;padding-bottom:32px;}
      .step::before{left:31px;top:60px;}
      .step-num{width:44px;height:44px;font-size:15px;}
      .sec{padding:56px 0;}
      .cta-sec{padding:56px 0;}
      .foot-grid{grid-template-columns:1fr;gap:28px;}
      .faq-q{font-size:16.5px;}
    }
    @media (max-width:519px){
      .grid-container{padding-left:18px;padding-right:18px;}
      .page-hero{padding:24px 0 40px;}
      .hero-actions .btn{width:100%;}
      .hero-actions .link-cta{width:100%;justify-content:flex-start;}
      .search-hint{display:none;}
      .foot-bottom{font-size:12.5px;}
    }
    @media (hover:hover){
      .faq-q:hover .sign{border-color:var(--accent);}
    }

/* roulang page: category6 */
:root{
  --ink:#14161A;
  --ink-2:#2B3038;
  --paper:#F5F2EC;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --accent:#D2542B;
  --accent-deep:#A83E1C;
  --pine:#1E4B43;
  --muted:#6E6A62;
  --focus:#D2542B;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,22,26,.04), 0 10px 28px -14px rgba(20,22,26,.14);
  --sh-2:0 20px 44px -22px rgba(20,22,26,.28);
  --ease:cubic-bezier(.22,.8,.28,1);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:128px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color 160ms var(--ease),border-color 160ms var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.mono{font-family:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}
.grid-container{
  width:100%;
  max-width:1200px !important;
  padding-left:24px !important;
  padding-right:24px !important;
  margin-left:auto;
  margin-right:auto;
}
.show-for-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(245,242,236,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 24px -20px rgba(20,22,26,.5);}
.head-main-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:72px;
  transition:height 240ms var(--ease);
}
.site-head.is-stuck .head-main-inner{height:58px;}
.logo{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0;}
.logo-main{font-size:21px;font-weight:800;letter-spacing:-0.01em;color:var(--ink);}
.logo-sub{font-size:11px;color:var(--muted);letter-spacing:.16em;margin-top:2px;}
.logo:hover .logo-main{color:var(--accent);}
.head-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all 160ms var(--ease);
}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);}
.icon-btn[aria-expanded="true"]{background:var(--ink);border-color:var(--ink);color:#fff;}
.head-link{font-size:14.5px;color:var(--ink-2);padding:6px 4px;border-bottom:1px solid transparent;}
.head-link:hover{color:var(--ink);border-bottom-color:var(--accent);}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:14px 28px;
  font-size:16px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),transform 160ms var(--ease),box-shadow 240ms var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(0);background:var(--accent-deep);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-light{background:#fff;color:var(--ink);border-color:#fff;}
.btn-light:hover{background:#F5F2EC;color:var(--ink);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14.5px;border-radius:999px;}
.link-cta{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15.5px;
  color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:2px;
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.link-cta i{font-size:12px;transition:transform 160ms var(--ease);}
.link-cta:hover{color:var(--accent);border-color:var(--accent);}
.link-cta:hover i{transform:translateX(4px);}

/* 搜索条 */
.search-bar{
  display:none;
  border-top:1px solid var(--line);
  background:var(--card);
}
.search-bar.is-open{display:block;}
.search-inner{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.search-inner input[type="search"]{
  flex:1 1 260px;
  height:46px;
  margin:0;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper);
  padding:0 16px;
  font-size:15px;
  color:var(--ink);
  box-shadow:none;
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.search-inner input[type="search"]::placeholder{color:var(--muted);}
.search-inner input[type="search"]:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(210,84,43,.12);outline:none;}
.search-hint{font-size:13px;color:var(--muted);}

/* 频道行 */
.tabs-row{border-top:1px solid var(--line);}
.tabs-nav{
  display:flex;align-items:center;gap:8px;
  padding-top:9px;padding-bottom:9px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.tabs-nav::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
  background:transparent;
  white-space:nowrap;
  transition:all 160ms var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink);}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ============ 通用板块 ============ */
.sec{padding:96px 0;}
.sec-tight{padding:64px 0;}
.sec-head{
  display:flex;align-items:flex-end;gap:20px;
  flex-wrap:wrap;
  padding-bottom:28px;
  border-bottom:1px solid var(--line);
  margin-bottom:48px;
}
.sec-no{font-size:13px;color:var(--accent);letter-spacing:.12em;font-weight:600;padding-bottom:6px;}
.sec-title{font-size:38px;line-height:1.15;font-weight:700;letter-spacing:-0.01em;}
.sec-note{font-size:14px;color:var(--muted);margin-left:auto;padding-bottom:6px;}

/* 面包屑 */
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  padding:28px 0 0;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--ink);}

/* Hero */
.page-hero{padding:32px 0 8px;}
.hero-grid{display:flex;gap:48px;align-items:center;flex-wrap:wrap;}
.hero-copy{flex:1 1 520px;min-width:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.1em;color:var(--accent);
  border:1px solid rgba(210,84,43,.35);
  border-radius:999px;
  padding:5px 14px;
  font-weight:600;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:60px;line-height:1.06;font-weight:800;letter-spacing:-0.02em;
  margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.hero-lead{font-size:19px;line-height:1.7;color:var(--ink-2);max-width:44em;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;
  font-size:12px;padding:5px 13px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--ink-2);
}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.hero-media{flex:0 1 420px;min-width:0;position:relative;}
.hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-1);
}
.float-card{
  position:absolute;right:-12px;bottom:-20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--sh-1);
  min-width:190px;
}
.float-card .badge-min{
  display:inline-block;font-size:11px;color:var(--accent);
  border:1px solid rgba(210,84,43,.35);border-radius:999px;
  padding:2px 10px;margin-bottom:8px;font-weight:600;
}
.float-card .num{font-size:24px;font-weight:700;display:block;line-height:1.2;}
.float-card .lbl{font-size:12.5px;color:var(--muted);}

/* 入口矩阵 */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.entry-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFC7B8;}
.entry-ico{
  width:44px;height:44px;border-radius:12px;
  background:rgba(30,75,67,.08);
  color:var(--pine);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;
}
.entry-card h3{font-size:19px;line-height:1.35;}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.entry-meta{font-size:12.5px;color:var(--accent);font-weight:600;margin-top:auto;display:flex;align-items:center;gap:6px;}

/* 问答区 */
.qa-layout{display:flex;gap:48px;align-items:flex-start;flex-wrap:wrap;}
.qa-main{flex:1 1 620px;min-width:0;}
.qa-group{margin-bottom:44px;}
.qa-group:last-child{margin-bottom:0;}
.qa-group-title{
  display:flex;align-items:center;gap:12px;
  font-size:14px;color:var(--muted);font-weight:600;
  letter-spacing:.08em;
  padding-bottom:12px;margin-bottom:4px;
  border-bottom:1px solid var(--ink);
}
.qa-group-title .gno{font-size:12px;color:var(--accent);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  background:none;border:0;
  padding:22px 0;
  text-align:left;
  font-size:18px;font-weight:600;color:var(--ink);
  line-height:1.55;
  cursor:pointer;
  transition:color 160ms var(--ease),background-color 160ms var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q:active{background:rgba(20,22,26,.02);}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  border:1px solid var(--line);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;line-height:1;margin-top:2px;
  transition:transform 240ms var(--ease),background-color 160ms var(--ease),color 160ms var(--ease);
}
.faq-item.is-open .faq-sign{background:var(--accent);color:#fff;border-color:var(--accent);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 240ms var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{
  font-size:16px;line-height:1.85;color:var(--ink-2);
  padding:0 44px 22px 0;
  max-width:68ch;
}

/* 侧栏联系卡 */
.qa-side{flex:0 1 320px;min-width:0;position:sticky;top:130px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
}
.side-card h3{font-size:20px;margin-bottom:10px;line-height:1.4;}
.side-card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:18px;}
.side-list{margin-bottom:22px;}
.side-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-size:14px;padding:11px 0;border-bottom:1px dashed var(--line);
}
.side-list li:last-child{border-bottom:0;}
.side-list span:first-child{color:var(--muted);}
.side-list span:last-child{color:var(--ink);font-weight:600;}
.side-card .btn{width:100%;}
.side-tip{font-size:12.5px;color:var(--muted);margin-top:12px;margin-bottom:0;line-height:1.7;}

/* 数据条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat-item{padding:28px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item .num{font-size:34px;font-weight:700;line-height:1.1;display:block;letter-spacing:-0.01em;}
.stat-item .num em{font-style:normal;font-size:16px;color:var(--muted);margin-left:6px;font-weight:600;}
.stat-item .lbl{font-size:13.5px;color:var(--muted);margin-top:8px;display:block;}

/* 支持说明两栏 */
.support-grid{display:flex;gap:48px;align-items:center;flex-wrap:wrap;}
.support-media{flex:0 1 420px;min-width:0;}
.support-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);}
.support-copy{flex:1 1 480px;min-width:0;}
.mini-list{margin-top:24px;}
.mini-list li{
  display:flex;gap:14px;
  padding:18px 0;border-top:1px solid var(--line);
}
.mini-list li:last-child{border-bottom:1px solid var(--line);}
.mini-list .mno{font-size:13px;color:var(--accent);font-weight:700;padding-top:4px;min-width:26px;}
.mini-list h4{font-size:17px;margin-bottom:6px;}
.mini-list p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* CTA */
.cta-band{background:var(--pine);color:#fff;padding:72px 0;}
.cta-grid{display:flex;gap:48px;align-items:center;flex-wrap:wrap;}
.cta-copy{flex:1 1 480px;min-width:0;}
.cta-copy h2{color:#fff;font-size:36px;line-height:1.2;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:16.5px;line-height:1.85;margin-bottom:22px;max-width:34em;}
.cta-points{display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-points i{color:#F0A98C;font-size:13px;margin-top:6px;}
.cta-panel{
  flex:0 1 380px;min-width:0;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-card);
  padding:30px;
}
.cta-panel h3{color:#fff;font-size:20px;margin-bottom:10px;}
.cta-panel p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.8;margin-bottom:20px;}
.cta-panel .btn{width:100%;margin-bottom:12px;}
.cta-panel .note{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.7;}

/* 页脚 */
.site-foot{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 28px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.foot-brand .logo-main{color:#fff;font-size:20px;}
.foot-brand .logo-sub{color:rgba(255,255,255,.45);}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin-top:14px;max-width:26em;}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.5);margin-bottom:16px;font-weight:600;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.78);}
.foot-col a:hover{color:#fff;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:22px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.foot-bottom .dot{color:rgba(255,255,255,.3);}

/* 动效 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* 断点 */
@media (max-width:1199px){
  .page-hero h1{font-size:52px;}
  .sec{padding:80px 0;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .qa-side{position:static;flex:1 1 100%;}
  .hero-media{flex:1 1 100%;}
  .float-card{right:8px;bottom:-16px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  html{scroll-padding-top:150px;}
  .head-main-inner{height:64px;flex-wrap:wrap;}
  .site-head.is-stuck .head-main-inner{height:58px;}
  .logo-main{font-size:18px;}
  .nav-burger{display:inline-flex;}
  .head-tools{gap:8px;}
  .head-tools .head-link,.head-tools > .btn-primary{display:none;}
  .head-tools.is-open{flex-wrap:wrap;justify-content:flex-end;}
  .head-tools.is-open .head-link,.head-tools.is-open > .btn-primary{display:inline-flex;}
  .sec{padding:56px 0;}
  .sec-tight{padding:48px 0;}
  .sec-head{gap:10px;padding-bottom:18px;margin-bottom:32px;}
  .sec-title{font-size:26px;}
  .sec-note{flex:1 1 100%;margin-left:0;font-size:13px;}
  .crumbs{font-size:12.5px;padding-top:20px;}
  .page-hero{padding:24px 0 0;}
  .page-hero h1{font-size:33px;line-height:1.15;}
  .hero-lead{font-size:16.5px;}
  .hero-grid{gap:32px;}
  .entry-grid{grid-template-columns:1fr;gap:16px;}
  .qa-layout{gap:32px;}
  .faq-q{font-size:16.5px;padding:18px 0;gap:14px;}
  .faq-a p{padding-right:0;font-size:15.5px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 4px;}
  .stat-item:last-child{border-bottom:0;}
  .support-grid{gap:28px;}
  .cta-band{padding:52px 0;}
  .cta-copy h2{font-size:27px;}
  .cta-panel{padding:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-brand{grid-column:1 / -1;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:519px){
  .hero-actions{gap:14px;}
  .btn{width:100%;}
  .hero-actions .link-cta{width:auto;}
  .foot-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:1ms!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}