/* roulang page: index */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,sans-serif;
  --num:"Inter","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--paper-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{
  font-family:var(--serif);
  font-size:clamp(1.6rem,3.2vw,2.4rem);
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.28;
}
.sec-head p{margin-top:10px;color:var(--stone);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.12em;color:var(--stone);
}
.eyebrow::before{content:"";width:10px;height:10px;background:var(--accent);flex:0 0 auto}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;white-space:nowrap;
  transition:color .2s var(--ease);
}
.link-more i{transition:transform .2s var(--ease)}
.link-more:hover{color:var(--accent-hover)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,238,.94);
  backdrop-filter:blur(8px);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.16}
.brand-main{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.06em}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--stone)}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{position:relative;font-size:15px;padding:6px 0;color:var(--ink);transition:color .2s var(--ease)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .18s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{font-weight:600}
.nav-right{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;letter-spacing:.02em;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--ink);color:#F6F3EE}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#F6F3EE}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 18px;font-size:13px;border-radius:var(--r-pill)}
.btn-outline-sm{height:40px;padding:0 20px;font-size:14px;border:1px solid var(--ink);border-radius:var(--r-xs)}
.btn-outline-sm:hover{background:var(--ink);color:#F6F3EE}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-xs);align-items:center;justify-content:center}
.nav-toggle i{font-size:16px}
.drawer{
  position:fixed;inset:72px 0 0 0;background:var(--surface);z-index:55;
  padding:24px;transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer a{display:flex;align-items:center;gap:12px;font-size:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.drawer a .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:0}
.drawer a.active .dot{opacity:1}
.drawer .drawer-cta{margin-top:28px;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px}
.hero-deco{
  position:absolute;right:-140px;top:-110px;width:560px;height:560px;border-radius:50%;
  background:repeating-radial-gradient(circle at center, rgba(184,69,47,.10) 0 1px, transparent 1px 28px);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(2rem,3.6vw,3.1rem);
  line-height:1.24;letter-spacing:.01em;margin:20px 0 0;max-width:15em;
}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:#3D3B38;max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;margin-top:36px;padding-top:20px;border-top:1px solid var(--line)}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--stone)}
.hero-trust li::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%}
.hero-visual{position:relative;width:100%;max-width:400px;margin-left:auto}
.hero-visual img{
  width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:var(--r-md);
  filter:saturate(.94) contrast(1.02);background:var(--paper-2);
}
.hero-badge{
  position:absolute;left:16px;bottom:16px;
  background:rgba(18,19,22,.72);color:#F6F3EE;font-size:12px;letter-spacing:.08em;
  padding:6px 12px;border-radius:var(--r-pill);
}

/* ---------- 数据条 ---------- */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-strip .stat{padding:32px 24px;border-left:1px solid var(--line)}
.stats-strip .stat:first-child{border-left:0}
.stat-num{font-family:var(--num);font-size:34px;font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--stone)}

/* ---------- 深色片段区 ---------- */
.dark-section{background:var(--ink);color:var(--paper);padding:96px 0}
.dark-section .sec-head h2{color:var(--paper)}
.dark-section .eyebrow{color:rgba(246,243,238,.66)}
.dark-section .sec-head p{color:rgba(246,243,238,.6)}
.dark-section .link-more{color:#E5A491}
.dark-section .link-more:hover{color:#fff}
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:48px;z-index:2;pointer-events:none;
}
.rail-wrap::before{left:-24px;background:linear-gradient(to right,var(--ink),rgba(18,19,22,0))}
.rail-wrap::after{right:-24px;background:linear-gradient(to left,var(--ink),rgba(18,19,22,0))}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 12px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.reel-card{
  position:relative;flex:0 0 auto;width:236px;aspect-ratio:9/16;
  border-radius:var(--r-md);overflow:hidden;scroll-snap-align:start;
  background:var(--paper-2);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.reel-card img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02);transition:transform .3s var(--ease)}
.reel-card:hover img{transform:scale(1.03)}
.reel-card:hover{box-shadow:var(--sh-2)}
.reel-duration{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(18,19,22,.6);color:#fff;font-family:var(--num);
  font-size:12px;font-variant-numeric:tabular-nums;padding:2px 9px;border-radius:var(--r-pill);
}
.reel-tag{
  position:absolute;top:12px;right:12px;z-index:2;
  background:#fff;color:var(--ink);font-size:12px;padding:2px 9px;border-radius:var(--r-xs);
}
.reel-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:44px 16px 16px;
  background:linear-gradient(to top,rgba(0,0,0,.68),rgba(0,0,0,0));
}
.reel-title{
  color:#fff;font-size:15px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reel-meta{margin-top:6px;font-size:12px;color:rgba(255,255,255,.72)}
.reel-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.9);
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.9);
  display:flex;align-items:center;justify-content:center;color:#fff;z-index:3;
  opacity:0;transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.reel-play::after{
  content:"";margin-left:3px;border-left:9px solid #B8452F;
  border-top:6px solid transparent;border-bottom:6px solid transparent;
}
.reel-card:hover .reel-play{opacity:1;transform:translate(-50%,-50%) scale(1)}

/* ---------- 种草清单 ---------- */
.pick-list{border-top:1px solid var(--line)}
.pick-row{
  display:grid;grid-template-columns:56px 72px minmax(0,1fr) auto;
  gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.pick-row:hover{background:#FAF8F4}
.pick-num{font-family:var(--serif);font-size:40px;line-height:1;color:var(--stone-2);transition:color .2s var(--ease);font-variant-numeric:tabular-nums}
.pick-row:hover .pick-num{color:var(--accent)}
.pick-thumb img{width:72px;height:72px;object-fit:cover;border-radius:var(--r-sm);background:var(--paper-2);filter:saturate(.94) contrast(1.02)}
.pick-title{font-size:17px;font-weight:600;line-height:1.5;transition:color .2s var(--ease)}
.pick-row:hover .pick-title{color:var(--accent)}
.pick-points{display:flex;flex-wrap:wrap;gap:16px;margin-top:6px}
.pick-points li{position:relative;padding-left:12px;font-size:13.5px;color:var(--stone)}
.pick-points li::before{content:"";position:absolute;left:0;top:.62em;width:4px;height:4px;border-radius:50%;background:var(--stone-2)}

/* ---------- 口碑 ---------- */
.voice-summary{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:28px;color:var(--stone);font-size:14px}
.voice-score{display:flex;align-items:baseline;gap:10px}
.voice-score b{font-family:var(--num);font-size:38px;font-weight:600;color:var(--ink);line-height:1;font-variant-numeric:tabular-nums}
.stars{color:var(--accent);letter-spacing:2px;font-size:13px}
.voice-rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:none}
.voice-rail::-webkit-scrollbar{display:none}
.voice-card{
  flex:0 0 auto;width:298px;background:var(--surface);border:1px solid var(--line);
  border-radius:8px;padding:22px;scroll-snap-align:start;transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.voice-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.voice-head{display:flex;align-items:center;gap:12px}
.voice-avatar{width:40px;height:40px;border-radius:50%;overflow:hidden;background:var(--paper-2);flex:0 0 auto}
.voice-avatar img{width:100%;height:100%;object-fit:cover}
.voice-name{font-size:14px;font-weight:600}
.voice-card .stars{margin-top:4px;display:block}
.voice-text{margin-top:14px;font-size:14.5px;color:#4A4641;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- CMS 内容动态 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.post-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D8D1C6}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02);transition:transform .3s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-tag{
  align-self:flex-start;font-size:12px;letter-spacing:.08em;color:var(--accent);
  background:var(--accent-soft);padding:3px 10px;border-radius:var(--r-xs);
}
.post-title{
  margin-top:12px;font-size:16.5px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.post-card:hover .post-title{color:var(--accent)}
.post-excerpt{
  margin-top:10px;font-size:14px;color:var(--stone);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;font-size:13px;color:var(--stone);
  font-family:var(--num);font-variant-numeric:tabular-nums;
  display:flex;align-items:center;gap:8px;
}
.post-meta::before{content:"";width:14px;height:1px;background:var(--stone-2)}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-sm);color:var(--stone);font-size:14px;
}
.list-foot{display:flex;justify-content:center;margin-top:40px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.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;gap:20px;
  min-height:64px;padding:16px 0;text-align:left;
}
.faq-idx{font-family:var(--num);font-size:14px;color:var(--stone-2);font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-q-text{flex:1;font-size:16.5px;font-weight:600;line-height:1.6;transition:color .2s var(--ease)}
.faq-q:hover .faq-q-text{color:var(--accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink)}
.faq-icon::before{left:0;top:7px;width:16px;height:1px}
.faq-icon::after{top:0;left:7px;width:1px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease),opacity .22s var(--ease);opacity:0}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 36px 26px 34px;font-size:15px;color:#4A4641;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-2);color:var(--paper);
  padding:88px 0;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(to right,transparent,rgba(246,243,238,.28),transparent);
}
.cta-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:48px;align-items:center}
.cta-band h2{font-family:var(--serif);font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.3}
.cta-band p{margin-top:16px;color:rgba(246,243,238,.7);font-size:15.5px;max-width:34em}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:16px;justify-self:end}
.cta-note{font-size:13px;color:rgba(246,243,238,.55)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:var(--paper);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid rgba(246,243,238,.12)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand-main{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:.06em}
.footer-brand-sub{font-size:12px;letter-spacing:.16em;color:rgba(246,243,238,.6);margin-top:4px}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(246,243,238,.62);max-width:24em}
.footer-title{font-size:13px;letter-spacing:.12em;color:rgba(246,243,238,.55);margin-bottom:18px}
.footer-list li{margin-bottom:12px}
.footer-list a{font-size:14.5px;color:rgba(246,243,238,.86);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-list a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-contact li{font-size:14px;color:rgba(246,243,238,.72);margin-bottom:10px;line-height:1.7}
.footer-bottom{
  margin-top:64px;border-top:1px solid rgba(246,243,238,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(246,243,238,.5);
}
.to-top{color:rgba(246,243,238,.7);transition:color .2s var(--ease)}
.to-top:hover{color:var(--accent)}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  *{transition:none!important;animation:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{gap:22px}
  .nav-links a{font-size:14px}
  .hero-grid{gap:40px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .footer-col:nth-child(odd){padding-left:0;border-left:0}
  .stats-strip{grid-template-columns:repeat(2,1fr)}
  .stats-strip .stat:nth-child(3){border-left:0}
  .stats-strip .stat:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:900px){
  .nav-links,.nav-right .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{max-width:340px;margin:0 auto}
  .hero-visual img{aspect-ratio:4/5}
  .section{padding:72px 0}
  .dark-section{padding:72px 0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions{justify-self:start}
  .cta-band{padding:64px 0}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10.5px;letter-spacing:.12em}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .stats-strip{grid-template-columns:1fr}
  .stats-strip .stat{border-left:0;border-top:1px solid var(--line);padding:22px 0}
  .stats-strip .stat:first-child{border-top:0}
  .rail-wrap::before,.rail-wrap::after{display:none}
  .reel-card{width:72vw}
  .pick-row{grid-template-columns:28px 56px minmax(0,1fr);gap:14px;row-gap:12px}
  .pick-num{font-size:24px}
  .pick-thumb img{width:56px;height:56px}
  .pick-row .btn-sm{grid-column:2 / -1;justify-self:start}
  .post-grid{grid-template-columns:1fr}
  .voice-card{width:80vw}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(246,243,238,.12);padding-top:28px;margin-top:28px}
  .footer-col:first-child{border-top:0;padding-top:0;margin-top:0}
  .faq-a-inner{padding:0 0 22px 34px}
  .hero h1{font-size:clamp(1.75rem,7vw,2.4rem)}
}

/* roulang page: article */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;margin:0;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 顶部阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:1200;transition:width .12s linear}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(246,243,238,.94);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);backdrop-filter:blur(8px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15}
.brand-main{font-family:var(--font-serif);font-size:22px;font-weight:700;letter-spacing:.06em}
.brand-sub{font-family:var(--font-num);font-size:11px;letter-spacing:.18em;color:var(--stone);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:transparent;
  border-radius:var(--r-xs);cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:1px;background:var(--ink);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:25px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;background:var(--surface);z-index:1100;
  transform:translateX(102%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:28px 24px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:42px;height:42px;border:1px solid var(--line);background:transparent;border-radius:var(--r-xs);
  font-size:18px;color:var(--ink);cursor:pointer;line-height:1;
}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  font-size:20px;padding:18px 2px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.drawer-links a::before{
  content:"";width:4px;height:4px;border-radius:50%;background:transparent;
}
.drawer-links a.active::before,.drawer-links a:hover::before{background:var(--accent)}
.drawer-links a.active{color:var(--accent)}
.drawer-cta{margin-top:28px}
.drawer-foot{margin-top:auto;padding-top:26px;font-size:13px;color:var(--stone)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;letter-spacing:.02em;cursor:pointer;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;
  padding:4px 0;border-bottom:1px solid transparent;transition:gap .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{gap:10px;border-bottom-color:var(--accent)}

/* ---------- 文章页头 ---------- */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--stone)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--stone-2)}
.crumbs a:hover{color:var(--accent)}
.crumbs .current{color:var(--ink)}

.article-head{padding:26px 0 42px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.article-head::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid var(--line);opacity:.8;pointer-events:none;
}
.article-head::after{
  content:"";position:absolute;right:-40px;top:-60px;width:280px;height:280px;border-radius:50%;
  border:1px solid var(--line);opacity:.55;pointer-events:none;
}
.tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  background:var(--accent-soft);color:var(--accent);border-radius:var(--r-xs);
  font-size:12px;letter-spacing:.08em;
}
.article-title{
  font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.24;margin:20px 0 0;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:22px;font-size:13px;color:var(--stone);
  font-family:var(--font-num);letter-spacing:.04em;font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--stone-2);align-self:center}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:56px 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:64px;align-items:start}
.article-main{min-width:0;max-width:760px}
.article-cover{
  margin:0 0 40px;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);
  background:var(--paper-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.94) contrast(1.02)}
.article-cover figcaption{font-size:13px;color:var(--stone);text-align:center;padding:12px 16px;background:var(--surface)}

.article-body{font-size:17px;line-height:1.85;color:#1B1C20}
.article-body>*+*{margin-top:1.2em}
.article-body h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);line-height:1.32;margin-top:56px;position:relative;padding-top:24px;
}
.article-body h2::before{content:"";position:absolute;top:0;left:0;width:36px;height:2px;background:var(--accent)}
.article-body h3{font-size:1.18rem;margin-top:36px;line-height:1.4}
.article-body p{margin:0}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(184,69,47,.35)}
.article-body a:hover{border-bottom-color:var(--accent)}
.article-body strong{font-weight:600}
.article-body blockquote{
  margin:32px 0;padding:4px 0 4px 20px;border-left:3px solid var(--accent);
  color:#33343A;font-family:var(--font-serif);
}
.article-body ul,.article-body ol{padding-left:0;margin:20px 0}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.85em;width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;color:var(--accent);
  font-family:var(--font-num);font-size:13px;font-weight:600;
}
.article-body img{border-radius:var(--r-md);margin:28px 0}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-body th{font-weight:600;color:var(--ink);border-bottom-color:var(--stone-2)}

.empty-state{
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  padding:56px 32px;text-align:center;
}
.empty-state p{font-size:14px;color:var(--stone);margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:28px}
.side-card{border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);padding:22px 20px}
.side-title{
  font-size:12px;letter-spacing:.12em;color:var(--stone);font-family:var(--font-num);
  text-transform:uppercase;margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;color:#3A3B40;padding:8px 0 8px 14px;position:relative;
  border-left:1px solid var(--line);transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a::before{
  content:"";position:absolute;left:-2px;top:50%;width:4px;height:4px;border-radius:50%;
  background:var(--stone-2);transform:translateY(-50%);transition:background .2s var(--ease);
}
.toc-list a:hover,.toc-list a.is-current{color:var(--accent);border-left-color:var(--accent)}
.toc-list a:hover::before,.toc-list a.is-current::before{background:var(--accent)}
.hot-list li+li{border-top:1px solid var(--line)}
.hot-list a{display:block;padding:12px 0;font-size:14px;line-height:1.6;color:#33343A}
.hot-list a:hover{color:var(--accent)}
.hot-list .hot-index{
  font-family:var(--font-num);font-size:12px;color:var(--stone-2);letter-spacing:.06em;
  display:block;margin-bottom:2px;
}

/* ---------- 关键提示条 ---------- */
.notice-strip{
  margin-top:48px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--paper-2);
  padding:26px 28px;
}
.notice-strip h2{font-size:1.12rem;margin-bottom:12px}
.notice-strip ul{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.notice-strip li{font-size:14px;color:#3A3B40;padding-left:16px;position:relative;line-height:1.75}
.notice-strip li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:1px;background:var(--accent)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
.section-title{font-size:clamp(1.4rem,2.4vw,1.9rem)}
.section-note{font-size:14px;color:var(--stone)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.related-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.94) contrast(1.02);transition:transform .35s var(--ease)}
.related-card:hover img{transform:scale(1.03)}
.related-card .rc-body{padding:18px 20px 22px}
.related-card .rc-body h3{font-size:1.02rem;line-height:1.5;transition:color .2s var(--ease)}
.related-card:hover .rc-body h3{color:var(--accent)}
.related-card .rc-body span{display:block;margin-top:8px;font-size:13px;color:var(--stone)}

/* ---------- FAQ ---------- */
.faq-block{padding:0 0 88px}
.faq-list{border-top:1px solid var(--line);max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;gap:18px;min-height:64px;padding:16px 0;
  font-size:16px;color:var(--ink);font-family:var(--font-sans);
}
.faq-q .q-num{font-family:var(--font-num);font-size:13px;color:var(--stone-2);letter-spacing:.06em}
.faq-q .q-text{flex:1}
.faq-q .q-icon{position:relative;width:14px;height:14px;flex:0 0 14px}
.faq-q .q-icon::before,.faq-q .q-icon::after{
  content:"";position:absolute;background:var(--ink);transition:transform .22s var(--ease),background .2s var(--ease);
}
.faq-q .q-icon::before{left:0;top:6.5px;width:14px;height:1px}
.faq-q .q-icon::after{left:6.5px;top:0;width:1px;height:14px}
.faq-item.is-open .q-icon::after{transform:rotate(90deg)}
.faq-item.is-open .q-icon::before,.faq-item.is-open .q-icon::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s var(--ease),opacity .22s var(--ease)}
.faq-item.is-open .faq-a{opacity:1}
.faq-a p{padding:0 32px 24px 31px;font-size:15px;color:#3A3B40;max-width:720px}

/* ---------- CTA ---------- */
.cta-strip{background:var(--ink);color:var(--paper);padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-title{color:var(--paper);font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3}
.cta-text{margin-top:12px;font-size:15px;color:rgba(246,243,238,.72);max-width:520px}
.cta-inner .btn-accent{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:var(--paper);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid rgba(246,243,238,.12)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-brand-main{font-family:var(--font-serif);font-size:22px;font-weight:700;letter-spacing:.06em}
.footer-brand-sub{font-family:var(--font-num);font-size:11px;letter-spacing:.18em;color:rgba(246,243,238,.6);margin-top:4px}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(246,243,238,.7);max-width:320px}
.footer-title{font-size:12px;letter-spacing:.12em;color:rgba(246,243,238,.6);font-family:var(--font-num);margin-bottom:16px}
.footer-list li+li{margin-top:10px}
.footer-list a,.footer-contact li{font-size:14px;color:rgba(246,243,238,.82)}
.footer-list a{position:relative;transition:color .2s var(--ease)}
.footer-list a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease)}
.footer-list a:hover{color:var(--accent)}
.footer-list a:hover::after{width:100%}
.footer-contact li+li{margin-top:10px}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(246,243,238,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,238,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

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

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:44px}
  .related-grid{gap:22px}
}
@media (max-width:899px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .header-actions .btn{display:none}
  .article-layout{grid-template-columns:1fr;gap:48px}
  .side{position:static;flex-direction:column}
  .article-wrap{padding:40px 0 72px}
  .article-main{max-width:none}
  .notice-strip ul{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col{border-left:0;padding:0}
  .cta-strip{padding:56px 0}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .brand-main{font-size:19px}
  .brand-sub{font-size:10px;letter-spacing:.14em}
  .article-title{font-size:1.72rem}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .faq-a p{padding:0 0 22px 31px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn-accent{width:100%}
}

/* roulang page: category1 */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --ink-soft:#4A4B50;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --gut:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--gut)}
.section{padding:96px 0}
.section--tight{padding:72px 0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,238,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px}
.brand{display:block;line-height:1.12}
.brand-main{
  display:block;font-family:var(--font-serif);font-size:20px;font-weight:700;
  letter-spacing:.08em;color:var(--ink);
}
.brand-sub{
  display:block;font-size:11px;letter-spacing:.2em;color:var(--stone);margin-top:2px;
}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--ink)}
.nav-links a.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--ink);color:#F6F3EE}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F6F3EE}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);
  font-size:15px;font-weight:500;
}
.text-link .arrow{transition:transform .18s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:var(--r-xs);align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.drawer{
  position:fixed;inset:0;z-index:70;background:#FFFFFF;
  transform:translateX(100%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:96px var(--gut) 40px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  font-size:20px;padding:18px 0;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.drawer nav a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.drawer .drawer-cta{margin-top:32px}
.drawer .drawer-cta .btn{width:100%}

/* ---------- 面包屑 & 页头 ---------- */
.crumbs{font-size:13px;color:var(--stone);padding:24px 0 0}
.crumbs a{transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{margin:0 8px;color:var(--stone-2)}
.crumbs .current{color:var(--ink)}
.page-head{padding:32px 0 56px}
.eyebrow{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.12em;
  color:var(--stone);text-transform:uppercase;
}
.eyebrow::before{
  content:"";width:8px;height:8px;background:var(--accent);
  display:inline-block;margin-right:10px;
}
.page-head h1{
  font-size:clamp(2rem,4.6vw,3.1rem);
  line-height:1.24;margin-top:20px;max-width:19ch;
}
.page-head .lede{
  margin-top:20px;font-size:18px;line-height:1.8;color:var(--ink-soft);
  max-width:60ch;
}
.page-stats{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:20px 56px;
}
.page-stats .stat-num{
  font-family:var(--font-num);font-weight:600;font-size:22px;
  letter-spacing:.04em;font-variant-numeric:tabular-nums;
}
.page-stats .stat-label{font-size:13px;color:var(--stone);margin-top:2px}

/* ---------- 竖屏横滑墙 ---------- */
.rail-section{background:var(--ink);color:var(--paper);padding:88px 0 96px}
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.rail-head h2{font-size:clamp(1.6rem,3.2vw,2.4rem);color:#F6F3EE;line-height:1.3}
.rail-head p{margin-top:12px;font-size:15px;color:rgba(246,243,238,.68);max-width:52ch}
.rail-link{
  display:inline-flex;align-items:center;gap:8px;color:#F6F3EE;font-size:15px;
  border-bottom:1px solid rgba(246,243,238,.35);padding-bottom:4px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.rail-link:hover{border-color:var(--accent);color:#fff}
.rail-wrap{position:relative;margin-top:40px}
.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:12px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 250px;scroll-snap-align:start}
.vcard{
  position:relative;aspect-ratio:9/16;border-radius:var(--r-md);
  overflow:hidden;background:#232428;display:block;
}
.vcard img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.94) contrast(1.02);
  transition:transform .4s var(--ease);
}
.vcard:hover img{transform:scale(1.03)}
.vcard-shade{
  position:absolute;left:0;right:0;bottom:0;height:62%;
  background:linear-gradient(to top,rgba(10,10,12,.86),rgba(10,10,12,0));
}
.vcard-dur{
  position:absolute;top:12px;left:12px;background:rgba(18,19,22,.6);
  color:#fff;font-family:var(--font-num);font-size:12px;font-weight:600;
  letter-spacing:.04em;padding:3px 8px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.vcard-tag{
  position:absolute;top:12px;right:12px;background:#fff;color:var(--ink);
  font-size:12px;letter-spacing:.06em;padding:3px 8px;border-radius:var(--r-pill);
}
.vcard-body{position:absolute;left:14px;right:14px;bottom:14px;color:#fff}
.vcard-title{
  font-family:var(--font-sans);font-size:15px;font-weight:500;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.vcard-meta{margin-top:6px;font-size:12px;color:rgba(255,255,255,.72)}
.vcard-play{
  position:absolute;top:50%;left:50%;width:44px;height:44px;margin:-22px 0 0 -22px;
  border:1px solid #fff;border-radius:50%;
  opacity:0;transform:scale(.9);transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.vcard-play::after{
  content:"";position:absolute;top:50%;left:50%;
  transform:translate(-40%,-50%);
  border-left:9px solid var(--accent);
  border-top:6px solid transparent;border-bottom:6px solid transparent;
}
.vcard:hover .vcard-play,.vcard:focus-visible .vcard-play{opacity:1;transform:scale(1)}
.rail-hint{
  margin-top:24px;font-size:13px;color:rgba(246,243,238,.55);
  display:flex;align-items:center;gap:10px;
}
.rail-hint::before{content:"";width:28px;height:1px;background:var(--accent);display:inline-block}

/* ---------- 交错图文 ---------- */
.alt-head h2{font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.3;max-width:24ch}
.alt-head p{margin-top:14px;color:var(--stone);font-size:15px;max-width:56ch}
.alt-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:56px}
.alt-col--right{margin-top:64px}
.alt-item{display:block;padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.alt-col .alt-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.alt-figure{border-radius:var(--r-sm);overflow:hidden;background:var(--paper-2)}
.alt-figure img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.94) contrast(1.02);
  transition:transform .4s var(--ease);
}
.alt-figure.ratio-43{aspect-ratio:4/3}
.alt-figure.ratio-32{aspect-ratio:3/2}
.alt-item:hover .alt-figure img{transform:scale(1.03)}
.alt-item h3{
  font-size:1.22rem;line-height:1.45;margin-top:20px;
  transition:color .2s var(--ease);
}
.alt-item:hover h3{color:var(--accent)}
.alt-item p{margin-top:12px;font-size:15px;color:var(--ink-soft)}
.alt-tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--accent-hover);
  background:var(--accent-soft);padding:3px 10px;border-radius:var(--r-pill);
  margin-bottom:12px;
}

/* ---------- 更新节奏数据行 ---------- */
.rhythm{background:var(--paper-2)}
.rhythm-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:40px;
}
.rhythm-item{padding:36px 32px;border-left:1px solid var(--line)}
.rhythm-item:first-child{border-left:0;padding-left:0}
.rhythm-num{
  font-family:var(--font-num);font-weight:600;font-size:28px;letter-spacing:.04em;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.rhythm-item h3{font-size:16px;font-family:var(--font-sans);font-weight:600;margin-top:14px}
.rhythm-item p{margin-top:8px;font-size:14px;color:var(--stone);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-head h2{font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.3}
.faq-head p{margin-top:14px;color:var(--stone);font-size:15px;max-width:56ch}
.faq-list{margin-top:48px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:20px;
  padding:22px 0;min-height:64px;text-align:left;
  font-size:17px;font-family:var(--font-sans);color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-num{
  font-family:var(--font-num);font-size:13px;font-weight:600;
  color:var(--stone-2);width:20px;flex:0 0 20px;
  font-variant-numeric:tabular-nums;
}
.faq-icon{
  margin-left:auto;flex:0 0 auto;width:16px;height:16px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);transition:background .2s var(--ease);
}
.faq-icon::before{top:7.5px;left:0;width:16px;height:1px}
.faq-icon::after{left:7.5px;top:0;width:1px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-q:hover .faq-icon::before,.faq-q:hover .faq-icon::after{background:var(--accent)}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .22s var(--ease),opacity .22s var(--ease);
}
.faq-item.is-open .faq-a{max-height:340px;opacity:1}
.faq-a p{
  padding:0 40px 26px 40px;font-size:15px;color:var(--ink-soft);
}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:var(--paper)}
.cta-inner{
  display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;
  padding:88px 0;
}
.cta-inner h2{font-size:clamp(1.6rem,3.2vw,2.4rem);color:#F6F3EE;line-height:1.32;max-width:22ch}
.cta-inner p{margin-top:18px;font-size:16px;color:rgba(246,243,238,.72);max-width:46ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cta-actions .btn-ghost{border-color:rgba(246,243,238,.5);color:#F6F3EE}
.cta-actions .btn-ghost:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE}
.cta-rule{height:1px;background:rgba(246,243,238,.18);width:100%;margin-top:36px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:var(--paper);font-size:14px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:0;
  padding:72px 0 40px;
}
.footer-col{padding:0 32px;border-left:1px solid rgba(246,243,238,.1)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-brand-main{
  font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.08em;
  color:#F6F3EE;line-height:1.2;
}
.footer-brand-sub{
  font-size:11px;letter-spacing:.2em;color:rgba(246,243,238,.6);margin-top:4px;
}
.footer-desc{
  margin-top:18px;font-size:14px;line-height:1.85;color:rgba(246,243,238,.68);max-width:34ch;
}
.footer-title{
  font-size:13px;letter-spacing:.1em;color:rgba(246,243,238,.55);margin-bottom:18px;
}
.footer-list li,.footer-contact li{margin-bottom:12px;color:rgba(246,243,238,.78)}
.footer-list a{color:rgba(246,243,238,.78);transition:color .2s var(--ease),border-color .2s var(--ease);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-list a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(246,243,238,.1);padding:22px 0 40px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,238,.55);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:72px 0}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:899px){
  :root{--gut:20px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-ghost{display:none}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .rail-section{padding:64px 0 72px}
  .rail-item{flex:0 0 72vw}
  .alt-grid{grid-template-columns:1fr;gap:0;margin-top:40px}
  .alt-col--right{margin-top:0}
  .rhythm-grid{grid-template-columns:1fr}
  .rhythm-item{border-left:0;border-top:1px solid var(--line);padding:28px 0}
  .rhythm-item:first-child{border-top:0;padding-top:0}
  .faq-a p{padding:0 0 24px 40px}
  .page-head{padding:24px 0 40px}
}
@media (max-width:639px){
  body{font-size:16px}
  .page-head .lede{font-size:16.5px}
  .page-stats{gap:16px 32px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(246,243,238,.1);padding-top:28px}
  .footer-col:first-child{border-top:0;padding-top:0}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px;gap:14px}
  .faq-a p{padding-left:34px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;margin:0;color:var(--ink)}
h1{font-size:clamp(2rem,4.6vw,3.4rem);line-height:1.22}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.28}
h3{font-size:1.15rem;line-height:1.45}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:2px;
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.04em;font-weight:600}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,238,.86);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(246,243,238,.94)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;flex-direction:column;line-height:1.1;padding:8px 0}
.brand-main{font-family:var(--font-serif);font-size:1.32rem;font-weight:700;letter-spacing:.06em}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--stone);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;
  font-size:15px;color:#2A2B30;
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;background:var(--ink);color:#F6F3EE;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.btn.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);height:42px;padding:0 20px;font-size:14px}
.btn.btn-ghost:hover{background:var(--ink);color:#F6F3EE;transform:none}
.btn.btn-accent{background:var(--accent);color:#fff}
.btn.btn-accent:hover{background:var(--accent-hover)}
.btn.btn-sm{height:38px;padding:0 20px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600;
}
.link-arrow span.arw{transition:transform .2s var(--ease)}
.link-arrow:hover span.arw{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:var(--r-xs);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle i{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:55;background:#fff;
  padding:96px 24px 32px;transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible}
.drawer a.d-item{
  display:block;font-size:20px;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink);
}
.drawer a.d-item.active{color:var(--accent)}
.drawer .drawer-cta{margin-top:28px}
.drawer .drawer-cta .btn{width:100%}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--stone)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li::after{content:"/";color:var(--stone-2)}
.crumb li:last-child::after{display:none}
.crumb a:hover{color:var(--accent)}
.crumb .current{color:var(--ink)}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:44px 0 88px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;top:-140px;right:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid var(--line);pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:-60px;right:-40px;width:250px;height:250px;border-radius:50%;
  border:1px solid var(--line);pointer-events:none;
}
.hero-split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;letter-spacing:.12em;color:var(--stone);text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);display:block}
.lead{font-size:18px;line-height:1.8;color:#3A3B41;max-width:640px;margin-top:20px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-line{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:var(--stone);
}
.trust-line span{display:inline-flex;align-items:center;gap:8px}
.trust-line span::before{content:"";width:5px;height:5px;background:var(--stone-2);border-radius:50%}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm);
  filter:saturate(.94) contrast(1.02);background:var(--paper-2);
}
.hero-media figcaption{
  font-size:13px;color:var(--stone);margin-top:12px;padding-left:2px;
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--paper-2)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .eyebrow{margin-bottom:14px}
.section-head p{color:#3A3B41;margin-top:14px}
.section-head.with-action{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- process ---------- */
.process-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:64px;align-items:start}
.process-list{counter-reset:step}
.process-item{position:relative;display:grid;grid-template-columns:104px minmax(0,1fr);gap:32px;padding-bottom:56px}
.process-item:last-child{padding-bottom:0}
.process-item::before{
  content:"";position:absolute;left:51px;top:88px;bottom:8px;width:1px;background:var(--line);
}
.process-item:last-child::before{display:none}
.step-no{
  font-family:var(--font-serif);font-size:clamp(2.6rem,5vw,3.6rem);line-height:1;font-weight:600;
  color:var(--stone-2);letter-spacing:.02em;transition:color .25s var(--ease);
}
.process-item:hover .step-no{color:var(--accent)}
.step-body h3{margin-bottom:12px}
.step-body p{color:#3A3B41;max-width:56ch}
.step-meta{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;
}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:var(--accent-hover);font-size:12px;letter-spacing:.06em;
}
.step-body .btn{margin-top:22px}

.check-card{
  position:sticky;top:104px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  padding:32px 28px;box-shadow:var(--sh-1);
}
.check-card h3{font-size:1.08rem;margin-bottom:6px}
.check-card .check-sub{font-size:13px;color:var(--stone);margin-bottom:22px}
.check-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:#33343A;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;background:var(--accent);border-radius:50%;
}
.check-note{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--stone);
}

/* ---------- entry table ---------- */
.entry-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}
.entry-table{border-top:1px solid var(--line)}
.entry-row{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;
  padding:24px 8px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.entry-row:hover{background:#FAF8F4}
.entry-row .entry-key{font-family:var(--font-serif);font-size:1.02rem;font-weight:600}
.entry-row .entry-val{font-size:15px;color:#3A3B41}
.entry-row .entry-val em{font-style:normal;color:var(--accent);font-weight:600}
.entry-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-sm);
  filter:saturate(.94) contrast(1.02);background:var(--paper-2);
}
.entry-media figcaption{font-size:13px;color:var(--stone);margin-top:12px}

/* ---------- prepare list ---------- */
.prep-list{border-top:1px solid var(--line);margin-top:8px}
.prep-item{
  display:grid;grid-template-columns:64px 72px minmax(0,1fr) auto;gap:24px;align-items:center;
  padding:20px 8px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.prep-item:hover{background:#FAF8F4}
.prep-no{
  font-family:var(--font-serif);font-size:2rem;line-height:1;color:var(--stone-2);
  transition:color .2s var(--ease);
}
.prep-item:hover .prep-no{color:var(--accent)}
.prep-thumb{width:72px;height:72px;border-radius:var(--r-sm);overflow:hidden;background:var(--paper-2)}
.prep-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02)}
.prep-text h3{font-size:1.02rem;margin-bottom:4px}
.prep-text p{font-size:14px;color:var(--stone);margin:0}

/* ---------- stats ---------- */
.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-cell{padding:32px 24px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-cell .stat-num{font-family:var(--font-num);font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:600;letter-spacing:.02em;line-height:1.1}
.stat-cell .stat-label{font-size:13.5px;color:var(--stone);margin-top:8px}

/* ---------- situation cards ---------- */
.situation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.situation-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:28px 26px;transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.situation-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D8D1C6}
.situation-card .sc-tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--stone);margin-bottom:12px;
}
.situation-card h3{margin-bottom:10px}
.situation-card p{font-size:15px;color:#3A3B41}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:20px;
  min-height:64px;padding:14px 8px;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-family:var(--font-num);font-size:13px;color:var(--stone-2);width:26px;flex:0 0 auto}
.faq-q{flex:1 1 auto;font-size:16.5px;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.faq-item summary:hover .faq-q{color:var(--accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--stone);border-radius:1px;
}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.faq-icon::after{top:0;left:7.25px;height:16px;width:1.5px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--accent)}
.faq-a{padding:0 8px 26px 46px;font-size:15.5px;color:#3A3B41;max-width:78ch}
.faq-a p{margin-bottom:.7em}
.faq-more{margin-top:32px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#F6F3EE;padding:88px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-160px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(246,243,238,.12);transform:translateX(-50%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.3fr) auto;gap:40px;align-items:center}
.cta-band h2{color:#F6F3EE}
.cta-band p{color:rgba(246,243,238,.72);margin-top:14px;max-width:56ch;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn{background:var(--accent);color:#fff}
.cta-band .btn:hover{background:var(--accent-hover)}
.cta-band .btn.ghost{background:transparent;border-color:rgba(246,243,238,.4);color:#F6F3EE}
.cta-band .btn.ghost:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE}
.cta-note{
  margin-top:36px;padding-top:22px;border-top:1px solid rgba(246,243,238,.16);
  display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:rgba(246,243,238,.6);
}
.cta-note span{display:inline-flex;align-items:center;gap:8px}
.cta-note span::before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-2);color:#F6F3EE;padding:72px 0 32px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 32px;border-right:1px solid rgba(246,243,238,.12)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-brand-main{font-family:var(--font-serif);font-size:1.5rem;font-weight:700;letter-spacing:.08em}
.footer-brand-sub{font-size:11.5px;letter-spacing:.2em;color:rgba(246,243,238,.6);margin-top:6px}
.footer-desc{margin-top:18px;color:rgba(246,243,238,.62);font-size:13.5px;line-height:1.85;max-width:34ch}
.footer-title{font-size:13px;letter-spacing:.14em;color:rgba(246,243,238,.55);margin-bottom:18px}
.footer-list li{margin-bottom:12px}
.footer-list a,.footer-contact li{color:rgba(246,243,238,.8)}
.footer-list a{position:relative;transition:color .2s var(--ease)}
.footer-list a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.footer-list a:hover{color:var(--accent)}
.footer-list a:hover::after{width:100%}
.footer-contact li{color:rgba(246,243,238,.72);margin-bottom:12px}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(246,243,238,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,238,.55);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:0}
  .footer-col{padding:24px 24px;border-right:0;border-bottom:1px solid rgba(246,243,238,.12)}
  .footer-col:first-child{padding-left:24px}
  .footer-col:last-child{padding-right:24px}
  .process-layout{gap:44px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .section.tight{padding:60px 0}
  .page-hero{padding:24px 0 64px}
  .hero-split{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .process-layout{grid-template-columns:1fr}
  .check-card{position:static}
  .entry-grid{grid-template-columns:1fr;gap:40px}
  .prep-item{grid-template-columns:44px 60px minmax(0,1fr);gap:18px}
  .prep-item .prep-action{grid-column:3;justify-self:start}
  .prep-thumb{width:60px;height:60px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-cell{border-bottom:1px solid var(--line)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-last-child(-n+2){border-bottom:0}
  .cta-inner{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:640px){
  .container{padding:0 20px}
  body{font-size:16px}
  .section{padding:64px 0}
  .process-item{grid-template-columns:64px minmax(0,1fr);gap:18px;padding-bottom:44px}
  .process-item::before{left:31px;top:64px}
  .step-no{font-size:2.2rem}
  .entry-row{grid-template-columns:1fr;gap:6px}
  .situation-grid{grid-template-columns:1fr}
  .prep-item{grid-template-columns:36px 56px minmax(0,1fr)}
  .prep-no{font-size:1.5rem}
  .prep-thumb{width:56px;height:56px}
  .faq-a{padding-left:20px}
  .stat-cell{padding:24px 16px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:64px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:.01em;margin:0;}
h1{font-size:clamp(2.2rem,5.6vw,4.4rem);line-height:1.2;}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.28;}
h3{font-size:1.15rem;line-height:1.42;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color 200ms var(--ease);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:background 220ms var(--ease),border-color 220ms var(--ease),backdrop-filter 220ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,243,238,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.header-inner{
  min-height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.brand{display:flex;flex-direction:column;line-height:1.14;padding:14px 0;}
.brand-main{
  font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.06em;color:var(--ink);
}
.brand-sub{
  font-size:11px;letter-spacing:.22em;color:var(--stone);margin-top:2px;
}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:26px 0;
  font-size:15px;
  color:#433F3A;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;
  background:var(--accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform 180ms var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;
  border-radius:var(--r-xs);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  background:none;border:0;padding:0;
  color:var(--accent);font-size:15px;font-weight:600;cursor:pointer;
}
.btn-text .arrow{transition:transform 200ms var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-xs);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform 200ms var(--ease),opacity 200ms var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
.drawer{
  position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;
  padding:12px 24px 40px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.drawer[hidden]{display:none;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  display:flex;align-items:center;gap:12px;
  padding:18px 0;font-size:20px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-links a::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--stone-2);
  flex:0 0 6px;transition:background 200ms var(--ease);
}
.drawer-links a.active{color:var(--accent);font-weight:600;}
.drawer-links a.active::before{background:var(--accent);}
.drawer-cta{margin-top:28px;width:100%;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(105deg,rgba(18,19,22,.9) 0%,rgba(18,19,22,.76) 52%,rgba(18,19,22,.6) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:var(--paper);
  padding:76px 0 64px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;
  border:1px solid rgba(246,243,238,.12);border-radius:50%;
  pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;right:-40px;top:-40px;width:320px;height:320px;
  border:1px solid rgba(246,243,238,.08);border-radius:50%;
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;margin-bottom:26px;
}
.breadcrumb a{color:var(--stone);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--stone-2);}
.breadcrumb-dark a{color:rgba(246,243,238,.7);}
.breadcrumb-dark a:hover{color:#fff;}
.breadcrumb-dark .sep{color:rgba(246,243,238,.38);}
.breadcrumb-dark [aria-current="page"]{color:#fff;}
.hero-tag{
  display:flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.12em;color:rgba(246,243,238,.82);
  margin-bottom:20px;
}
.hero-tag i{display:block;width:8px;height:8px;background:var(--accent);flex:0 0 8px;}
.hero-tag i{font-style:normal;}
.page-hero h1{color:#fff;max-width:14em;}
.hero-lead{
  margin-top:22px;max-width:640px;
  font-size:18px;line-height:1.8;color:rgba(246,243,238,.86);
}
.hero-stats{margin-top:40px;}
.hero-stat{
  border-top:1px solid rgba(246,243,238,.18);
  padding-top:16px;margin-bottom:8px;
}
.hero-stat .num{
  display:block;font-family:var(--num);font-weight:600;
  font-size:28px;letter-spacing:.04em;font-variant-numeric:tabular-nums;color:#fff;
}
.hero-stat .label{display:block;font-size:13px;color:rgba(246,243,238,.68);margin-top:2px;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section:nth-of-type(even){}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{position:relative;padding-top:24px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:0;width:36px;height:3px;background:var(--accent);
}
.section-note{margin-top:16px;color:#57534C;font-size:16px;}

/* ============ 筛选胶囊 ============ */
.chip-row{
  display:flex;flex-wrap:wrap;gap:10px;
  padding-bottom:32px;
  border-bottom:1px solid var(--line);
}
.chip{
  height:38px;padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:#4B4740;font-size:14px;letter-spacing:.02em;
  cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.chip:hover{border-color:var(--ink);color:var(--ink);}
.chip.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600;}

/* ============ 编号清单 ============ */
.pick-list{border-top:1px solid var(--line);}
.pick-row{
  display:grid;
  grid-template-columns:64px 88px minmax(0,1fr) auto;
  align-items:center;
  gap:24px;
  padding:24px 8px;
  border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.pick-row[hidden]{display:none;}
.pick-row:hover{background:#FAF8F4;}
.pick-num{
  font-family:var(--num);font-weight:600;font-size:40px;line-height:1;
  letter-spacing:.02em;font-variant-numeric:tabular-nums;
  color:var(--stone-2);
  transition:color 200ms var(--ease);
}
.pick-row:hover .pick-num{color:var(--accent);}
.pick-thumb{
  width:88px;aspect-ratio:1/1;
  border-radius:var(--r-sm);overflow:hidden;
  background:var(--paper-2);
}
.pick-thumb img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.94) contrast(1.02);
}
.pick-body h3{transition:color 200ms var(--ease);}
.pick-row:hover .pick-body h3{color:var(--accent);}
.pick-cat{
  display:inline-block;margin-bottom:6px;
  padding:2px 10px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;letter-spacing:.08em;
}
.pick-points{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px 24px;}
.pick-points li{
  position:relative;padding-left:14px;
  font-size:14px;color:var(--stone);line-height:1.7;
}
.pick-points li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:4px;height:4px;border-radius:50%;background:var(--stone-2);
}
.btn-follow{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid var(--accent);
  transition:background 200ms var(--ease),transform 200ms var(--ease);
}
.btn-follow:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-1px);}

/* ============ 信息对照表 ============ */
.spec-section{background:var(--paper-2);}
.spec-block{margin-bottom:32px;}
.spec-title{
  display:flex;align-items:center;gap:12px;
  font-family:var(--serif);font-size:1.05rem;font-weight:700;
  margin-bottom:10px;
}
.spec-title::before{content:"";width:18px;height:2px;background:var(--accent);}
.plain-table li{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:15px;
}
.plain-table .k{color:var(--stone);flex:0 0 auto;}
.plain-table .v{color:var(--ink);font-weight:500;text-align:right;}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:20px;
  min-height:64px;padding:14px 0;
  background:none;border:0;
  text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;
}
.faq-idx{
  font-family:var(--num);font-size:15px;font-weight:600;
  color:var(--stone-2);font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.faq-mark{position:relative;width:16px;height:16px;margin-left:auto;flex:0 0 16px;}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--accent);
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.faq-mark::before{left:0;top:7px;width:16px;height:2px;}
.faq-mark::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-mark::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height 220ms var(--ease),opacity 220ms var(--ease);}
.faq-a-inner{padding:0 0 22px 44px;color:#4B4740;font-size:16px;}
.faq-item.open .faq-a{opacity:1;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  background:var(--ink-2);
  color:var(--paper);
  padding:80px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(246,243,238,.05) 0 1px,transparent 1px 96px);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{color:#fff;max-width:16em;}
.cta-band p{margin-top:14px;color:rgba(246,243,238,.74);max-width:36em;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-2);color:var(--paper);padding:72px 0 28px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:0;
}
.footer-col{padding:0 28px;border-left:1px solid rgba(246,243,238,.1);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand-main{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:.08em;color:#fff;}
.footer-brand-sub{font-size:11px;letter-spacing:.22em;color:rgba(246,243,238,.6);margin-top:4px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(246,243,238,.66);}
.footer-title{font-size:13px;letter-spacing:.14em;color:rgba(246,243,238,.55);margin-bottom:16px;}
.footer-list li,.footer-contact li{margin-bottom:10px;font-size:14px;color:rgba(246,243,238,.78);}
.footer-list a,.footer-contact a{color:rgba(246,243,238,.78);border-bottom:1px solid transparent;padding-bottom:2px;}
.footer-list a:hover,.footer-contact a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(246,243,238,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(246,243,238,.5);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

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

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .nav-links{gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
}
@media screen and (max-width:1023px){
  .section{padding:80px 0;}
  .pick-row{grid-template-columns:52px 76px minmax(0,1fr);gap:18px;}
  .pick-thumb{width:76px;}
  .pick-num{font-size:32px;}
  .btn-follow{grid-column:2 / -1;justify-self:start;margin-top:4px;}
}
@media screen and (max-width:899px){
  .nav-links{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:64px 0;}
  .page-hero{padding:56px 0 52px;}
  .hero-lead{font-size:17px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .pick-row{grid-template-columns:40px 64px minmax(0,1fr);gap:14px;padding:20px 0;}
  .pick-thumb{width:64px;}
  .pick-num{font-size:24px;}
  .pick-points{flex-direction:column;gap:4px;}
  .btn-follow{grid-column:2 / -1;width:100%;}
  .chip{height:34px;padding:0 16px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(246,243,238,.1);padding-top:24px;}
  .footer-col:first-child{border-top:0;padding-top:0;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .plain-table li{flex-direction:column;align-items:flex-start;gap:4px;}
  .plain-table .v{text-align:left;}
}

/* roulang page: category4 */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.005em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);margin:0;letter-spacing:.01em}
h1{font-size:clamp(2.1rem,5.2vw,4rem);line-height:1.2}
h2{font-size:clamp(1.55rem,3.1vw,2.3rem);line-height:1.28}
h3{font-size:1.15rem;line-height:1.45;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
time,.num{font-family:var(--num);font-variant-numeric:tabular-nums;letter-spacing:.04em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;z-index:99}
.skip-link:focus{left:16px;top:12px;color:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--paper);
  border-bottom:1px solid transparent;transition:border-color 200ms var(--ease),background 200ms var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(246,243,238,.94)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;flex-direction:column;line-height:1.1;padding:12px 0}
.brand-main{font-family:var(--serif);font-size:1.24rem;font-weight:700;letter-spacing:.06em}
.brand-sub{font-size:.72rem;letter-spacing:.16em;color:var(--stone);margin-top:3px}
.brand:hover .brand-sub{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{position:relative;font-size:15px;color:var(--ink);padding:6px 0;white-space:nowrap}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width 180ms var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-xs);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink);transition:transform 200ms var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease);
}
.btn-primary{background:var(--ink);color:#F6F3EE;border:1px solid var(--ink)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);height:40px;padding:0 20px;font-size:14px}
.btn-ghost:hover{background:var(--ink);color:#F6F3EE}
.btn-accent{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-accent:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}
.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--accent);font-size:15px;font-weight:600}
.text-link .arrow{transition:transform 180ms var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--stone);padding:26px 24px 0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--stone)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--stone-2)}
.breadcrumb .current{color:var(--ink)}

/* ---------- 页头 ---------- */
.section{padding:96px 0}
.cat-hero{padding:44px 0 8px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;color:var(--stone);text-transform:uppercase;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);display:inline-block}
.cat-hero h1{max-width:900px;margin:20px 0 0}
.cat-lead{max-width:760px;margin-top:22px;font-size:18px;line-height:1.9;color:#3B3C40}
.hero-rule{margin-top:34px;border-top:1px solid var(--line)}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 34px;padding:18px 0 0;font-size:13.5px;color:var(--stone)}
.hero-meta strong{color:var(--ink);font-weight:600}

/* ---------- 评分汇总条 ---------- */
.score-section{padding:56px 0 8px}
.score-bar{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);padding:36px 40px;
  display:grid;grid-template-columns:minmax(240px,1fr) minmax(320px,1.35fr);gap:40px;align-items:center;
}
.score-num{font-family:var(--num);font-size:3.6rem;font-weight:600;line-height:1;color:var(--ink)}
.score-num span{font-size:1.05rem;color:var(--stone);font-weight:500;margin-left:8px;letter-spacing:.02em}
.stars{color:var(--accent);font-size:1.05rem;letter-spacing:.24em;margin-top:12px}
.stars.small{font-size:.88rem;letter-spacing:.18em;margin-top:8px}
.stars .off{color:var(--stone-2)}
.score-note{margin-top:12px;font-size:13.5px;color:var(--stone)}
.score-dims{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 32px}
.dim{display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:10px}
.dim-label{font-size:14px;color:#3B3C40}
.dim-value{font-family:var(--num);font-size:1.3rem;font-weight:600;color:var(--accent)}

/* ---------- 评价卡列 ---------- */
.reviews-section{padding:72px 0 96px}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{margin-top:16px}
.sec-desc{margin-top:14px;font-size:16px;color:#4A4B50}
.review-columns{column-count:2;column-gap:24px}
.review-card{
  break-inside:avoid;page-break-inside:avoid;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:24px;margin:0 0 24px;box-shadow:var(--sh-1);
  transition:box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.review-card:hover{box-shadow:var(--sh-2);border-color:#D8D2C7}
.review-head{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:var(--r-pill);object-fit:cover;flex:0 0 auto;background:var(--paper-2);filter:saturate(.94) contrast(1.02)}
.review-meta{flex:1 1 auto;min-width:0}
.review-name{font-size:14.5px;font-weight:600}
.review-sub{font-size:12.5px;color:var(--stone);margin-top:2px}
.review-time{font-size:12.5px;color:var(--stone);white-space:nowrap}
.review-text{margin-top:14px;font-size:15.5px;line-height:1.85;color:#33343A}
.review-tag{
  display:inline-block;margin-top:14px;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:var(--accent-hover);font-size:12px;letter-spacing:.06em;
}
.review-media{margin:16px 0 0;border-radius:var(--r-sm);overflow:hidden;background:var(--paper-2);aspect-ratio:16/9}
.review-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02);transition:transform 200ms var(--ease)}
.review-card:hover .review-media img{transform:scale(1.03)}

/* ---------- 反馈构成 ---------- */
.dist-section{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dist-list{max-width:860px}
.dist-row{display:grid;grid-template-columns:180px 1fr 62px;align-items:center;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}
.dist-row:last-child{border-bottom:0}
.dist-label{font-size:14.5px;color:#33343A}
.dist-track{height:6px;background:#E1DBD0;border-radius:var(--r-pill);overflow:hidden}
.dist-fill{display:block;height:100%;background:var(--accent);border-radius:var(--r-pill)}
.dist-val{font-family:var(--num);font-size:1rem;font-weight:600;text-align:right;color:var(--ink)}

/* ---------- 要点 ---------- */
.points-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:64px;align-items:start}
.points-figure{margin:0;border-radius:var(--r-md);overflow:hidden;background:var(--paper-2);aspect-ratio:4/3;box-shadow:var(--sh-1)}
.points-figure img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.02)}
.point-list{margin-top:32px;border-top:1px solid var(--line)}
.point-list li{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);transition:background 180ms var(--ease)}
.point-list li:hover{background:#FAF8F4}
.point-idx{font-family:var(--num);font-size:1.5rem;font-weight:600;color:var(--stone-2);line-height:1.2;transition:color 180ms var(--ease)}
.point-list li:hover .point-idx{color:var(--accent)}
.point-list p{margin-top:8px;font-size:15px;color:#4A4B50;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-section{background:var(--surface);border-top:1px solid var(--line)}
.faq-wrap{max-width:840px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:grid;grid-template-columns:44px 1fr 28px;align-items:center;gap:12px;
  min-height:64px;text-align:left;padding:12px 0;
}
.faq-idx{font-family:var(--num);font-size:1rem;color:var(--stone-2);transition:color 180ms var(--ease)}
.faq-title{font-family:var(--serif);font-size:1.02rem;font-weight:600;line-height:1.5}
.faq-icon{position:relative;width:16px;height:16px;justify-self:end}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--stone);transition:transform 220ms var(--ease),background 180ms var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px}
.faq-icon::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg) scaleY(.2)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-idx{background:var(--accent);color:var(--accent)}
.faq-item.is-open .faq-q:hover .faq-icon::before{background:var(--accent)}
.faq-q:hover .faq-title{color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease),opacity 220ms var(--ease);opacity:0}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 40px 24px 56px;font-size:15.5px;color:#4A4B50;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#F6F3EE;padding:84px 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(246,243,238,.14);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-band h2{color:#F6F3EE}
.cta-band p{margin-top:16px;color:rgba(246,243,238,.76);font-size:16px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-band .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.cta-band .btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.cta-band .btn-line{background:transparent;border:1px solid rgba(246,243,238,.5);color:#F6F3EE}
.cta-band .btn-line:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:#EDE9E2;padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 32px;border-left:1px solid rgba(246,243,238,.1)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand-main{font-family:var(--serif);font-size:1.5rem;font-weight:700;letter-spacing:.06em}
.footer-brand-sub{font-size:.74rem;letter-spacing:.18em;color:var(--stone-2);margin-top:5px}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(237,233,226,.62);max-width:320px}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.08em;color:#EDE9E2;margin-bottom:18px}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14px;color:rgba(237,233,226,.7)}
.footer-list a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{font-size:14px;color:rgba(237,233,226,.7);margin-bottom:11px;line-height:1.7}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(246,243,238,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(237,233,226,.52);
}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:60ms}
.reveal:nth-child(3){transition-delay:120ms}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(odd){padding-left:0;border-left:0}
  .footer-col:nth-child(3){padding-left:0;border-left:0}
}
@media (max-width:1023px){
  .score-bar{grid-template-columns:1fr;gap:28px;padding:30px 28px}
  .points-grid{grid-template-columns:1fr;gap:40px}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:899px){
  .section{padding:64px 0}
  .reviews-section{padding:56px 0 72px}
  .review-columns{column-count:1}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 40px;
    border-top:1px solid var(--line);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity 200ms var(--ease),transform 200ms var(--ease),visibility 200ms var(--ease);
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-links a{font-size:20px;padding:18px 2px;border-bottom:1px solid var(--line);color:var(--ink)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--accent);font-weight:600}
  .nav-links a.active::before{
    content:"";display:inline-block;width:6px;height:6px;background:var(--accent);margin-right:12px;vertical-align:middle;
  }
  .header-actions .btn-ghost{display:none}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .breadcrumb{padding:20px 20px 0}
  .cat-hero{padding:28px 0 4px}
  .cat-lead{font-size:16.5px}
  .hero-meta{gap:10px 22px;font-size:13px}
  .score-bar{padding:24px 20px}
  .score-num{font-size:2.9rem}
  .score-dims{grid-template-columns:1fr;gap:14px}
  .dist-row{grid-template-columns:1fr 62px;gap:8px 12px}
  .dist-label{grid-column:1 / -1}
  .point-list li{grid-template-columns:34px 1fr;gap:12px;padding:18px 0}
  .point-idx{font-size:1.15rem}
  .faq-q{grid-template-columns:32px 1fr 24px}
  .faq-a-inner{padding:0 8px 22px 44px}
  .cta-band{padding:64px 0}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(246,243,238,.1);padding-top:28px}
  .footer-col:first-child{border-top:0;padding-top:0}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category5 */
:root{
  --ink:#121316;
  --ink-2:#17181C;
  --paper:#F6F3EE;
  --paper-2:#EFEAE2;
  --surface:#FFFFFF;
  --accent:#B8452F;
  --accent-hover:#9E3A26;
  --accent-soft:#F3E4DF;
  --stone:#8B857A;
  --stone-2:#C9C3B8;
  --line:#E3DED5;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,19,22,.04);
  --sh-2:0 10px 28px rgba(18,19,22,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;background-color:transparent}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--accent-soft);color:var(--ink)}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--paper-2)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,238,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;flex-direction:column;text-decoration:none;line-height:1.12}
.brand-main{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.16em}
.brand-sub{font-size:11px;letter-spacing:.12em;color:var(--stone);margin-top:4px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);text-decoration:none;
  padding:8px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;
  background:var(--accent);transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{font-weight:600}
.header-actions{display:flex;align-items:center;gap:16px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-xs);
  background:transparent;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:70;
  background:#fff;padding:8px 24px 32px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.mobile-drawer a{
  display:flex;align-items:center;gap:12px;font-size:20px;padding:18px 0;
  border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);
}
.mobile-drawer a.active{color:var(--accent)}
.mobile-drawer a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.mobile-drawer .drawer-cta{margin-top:28px}
.mobile-drawer .drawer-cta a{
  justify-content:center;border:0;background:var(--ink);color:#fff;
  height:48px;font-size:16px;border-radius:var(--r-xs);
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15px;line-height:1;text-decoration:none;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-light{border-color:rgba(246,243,238,.42);color:var(--paper)}
.btn-ghost-light:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);
  text-decoration:none;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
}
.btn-link .arrow{transition:transform .18s var(--ease)}
.btn-link:hover .arrow{transform:translateX(4px)}

/* ===== 面包屑 ===== */
.crumb{padding:24px 0 0;font-size:13px;color:var(--stone)}
.crumb a{color:var(--stone);text-decoration:none;transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{margin:0 8px;color:var(--stone-2)}
.crumb strong{color:var(--ink);font-weight:500}

/* ===== 首屏 ===== */
.hero{position:relative;overflow:hidden;padding:56px 0 88px}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(246,243,238,.97) 0%,rgba(246,243,238,.88) 46%,rgba(246,243,238,.62) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center right;
  filter:saturate(.94) contrast(1.02);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--accent);margin-bottom:20px;
}
.hero-label::before{content:"";width:8px;height:8px;background:var(--accent);display:inline-block}
.hero h1{
  font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;
  font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.22;margin:0 0 20px;
}
.hero-lead{font-size:18px;line-height:1.85;color:#3D3C3A;max-width:560px;margin:0 0 32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.trust-line{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;gap:28px;flex-wrap:wrap;font-size:13px;color:var(--stone);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-md);
  box-shadow:var(--sh-2);filter:saturate(.94) contrast(1.02);
}
.hero-media figcaption{
  margin-top:12px;font-size:13px;color:var(--stone);text-align:center;
}

/* ===== 数据条 ===== */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--surface);
}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{
  font-family:var(--font-num);font-size:32px;font-weight:600;line-height:1.2;
  letter-spacing:.02em;font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13px;color:var(--stone);margin-top:6px}

/* ===== 板块标题 ===== */
.sec-head{max-width:780px;margin-bottom:48px}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--accent);margin-bottom:16px;
}
.sec-label::before{content:"";width:8px;height:8px;background:var(--accent)}
.sec-title{
  font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;
  font-size:clamp(1.6rem,3.2vw,2.4rem);line-height:1.28;margin:0 0 16px;
}
.sec-desc{font-size:16px;color:var(--stone);line-height:1.85}

/* ===== 适用场景 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:32px;height:100%;
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--stone-2)}
.scene-num{font-family:var(--font-num);font-size:13px;letter-spacing:.08em;color:var(--stone-2)}
.scene-card h3{font-family:var(--font-serif);font-size:1.15rem;font-weight:600;margin:12px 0 10px}
.scene-card p{font-size:15px;color:var(--stone);line-height:1.9}

/* ===== 问答分栏 ===== */
.faq-layout{display:grid;grid-template-columns:264px 1fr;gap:64px;align-items:start}
.faq-toc{position:sticky;top:104px}
.faq-toc-title{font-size:12px;letter-spacing:.12em;color:var(--stone);margin-bottom:14px}
.faq-toc a{
  display:flex;align-items:center;gap:10px;padding:12px 0;font-size:15px;
  color:var(--stone);text-decoration:none;border-bottom:1px solid var(--line);
  transition:color .2s var(--ease);
}
.faq-toc a::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--stone-2);
  transition:background .2s var(--ease);
}
.faq-toc a:hover,.faq-toc a.is-active{color:var(--ink)}
.faq-toc a:hover::before,.faq-toc a.is-active::before{background:var(--accent)}
.faq-toc-note{margin-top:20px;font-size:13px;color:var(--stone);line-height:1.8}

.faq-group{margin-bottom:56px;scroll-margin-top:104px}
.faq-group:last-child{margin-bottom:0}
.faq-group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:10px}
.faq-group-head h3{font-family:var(--font-serif);font-size:1.3rem;font-weight:600;margin:0}
.faq-group-head .count{font-family:var(--font-num);font-size:13px;color:var(--stone-2)}

.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;min-height:64px;
  padding:16px 0;background:none;border:0;text-align:left;font-size:16.5px;
  color:var(--ink);cursor:pointer;transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-idx{font-family:var(--font-num);font-size:13px;color:var(--stone-2);flex:0 0 20px}
.faq-icon{margin-left:auto;flex:0 0 14px;width:14px;height:14px;position:relative;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);transition:background .2s var(--ease)}
.faq-icon::before{left:0;top:6px;width:14px;height:1.5px}
.faq-icon::after{left:6px;top:0;width:1.5px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .22s var(--ease),opacity .22s var(--ease)}
.faq-item.open .faq-a{max-height:420px;opacity:1}
.faq-a p{padding:0 0 22px 36px;font-size:15.5px;line-height:1.9;color:#4A4844}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:32px 28px 32px 0;border-right:1px solid var(--line)}
.step:last-child{border-right:0;padding-right:0}
.step-num{font-family:var(--font-serif);font-size:2.4rem;line-height:1;color:var(--stone-2)}
.step h3{font-family:var(--font-serif);font-size:1.05rem;font-weight:600;margin:14px 0 8px}
.step p{font-size:14.5px;color:var(--stone);line-height:1.85}

/* ===== 联系框 ===== */
.contact-box{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:36px 40px;
}
.contact-box h3{font-family:var(--font-serif);font-size:1.3rem;font-weight:600;margin:0 0 10px}
.contact-box p{font-size:15px;color:var(--stone);max-width:620px}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:var(--paper);padding:80px 0}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;
  border:1px solid rgba(246,243,238,.12);border-radius:50%;
}
.cta-band .cta-inner{position:relative;z-index:1;max-width:660px}
.cta-band h2{
  font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;color:#fff;
  font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.3;margin:0 0 16px;
}
.cta-band p{color:rgba(246,243,238,.72);font-size:16px;margin:0 0 30px}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-2);color:var(--paper);padding:72px 0 28px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr}
.footer-col{padding:0 32px;border-left:1px solid rgba(246,243,238,.12)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand-main{font-family:var(--font-serif);font-size:22px;letter-spacing:.14em}
.footer-brand-sub{font-size:12px;letter-spacing:.12em;color:rgba(246,243,238,.6);margin-top:6px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(246,243,238,.62);max-width:330px}
.footer-title{font-size:13px;letter-spacing:.1em;color:rgba(246,243,238,.55);margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{
  color:rgba(246,243,238,.86);text-decoration:none;font-size:14.5px;
  transition:color .2s var(--ease);
}
.footer-list a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{font-size:14px;line-height:1.95;color:rgba(246,243,238,.7)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(246,243,238,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,238,.5);
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{gap:44px}
  .faq-layout{grid-template-columns:220px 1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:899px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-ghost{display:none}
  .hero{padding:32px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/10}
  .hero-lead{font-size:17px}
  .section{padding:72px 0}
  .scene-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .faq-layout{grid-template-columns:1fr;gap:36px}
  .faq-toc{position:static}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:0}
  .step{padding:28px 24px 28px 0;border-bottom:1px solid var(--line)}
  .step:nth-child(3),.step:nth-child(4){border-bottom:0}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .hero h1{font-size:clamp(1.9rem,7vw,2.4rem)}
  .trust-line{gap:16px;font-size:12.5px}
  .hero-actions .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:24px 20px}
  .stat:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr}
  .step{border-right:0!important;border-bottom:1px solid var(--line);padding-right:0}
  .step:last-child{border-bottom:0}
  .contact-box{padding:28px 22px;align-items:flex-start;flex-direction:column}
  .faq-q{font-size:16px}
  .faq-a p{padding-left:0}
  .footer-grid{grid-template-columns:1fr;row-gap:0}
  .footer-col{border-left:0;padding:24px 0 0;border-top:1px solid rgba(246,243,238,.12);margin-top:24px}
  .footer-col:first-child{border-top:0;margin-top:0;padding-top:0}
  .footer-desc{max-width:none}
  .footer-bottom{margin-top:36px;flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}