/* roulang page: index */
:root{
  --bg:#F6F5F2;
  --paper:#FFFFFF;
  --ink:#14161A;
  --ink-soft:#3A3E45;
  --dark:#111318;
  --dark-text:#F2F1EE;
  --accent:#FF4E1A;
  --accent-deep:#E13E0D;
  --lime:#C8F04A;
  --muted:#6B6F76;
  --muted-2:#A8ACB3;
  --line:#E3E1DC;
  --chip:#F0EEE9;
  --danger:#D93A2B;
  --r-card:14px;
  --r-img:12px;
  --r-pill:999px;
  --r-input:10px;
  --shadow-hover:0 12px 28px rgba(20,22,26,.10);
  --mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --sans:"PingFang SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --gap-section:110px;
  --gutter:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.02em;color:var(--ink);line-height:1.25;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
.gx{margin-left:calc(var(--gutter) * -1);margin-right:calc(var(--gutter) * -1);}
.gx > .cell{padding-left:var(--gutter);padding-right:var(--gutter);}
.section{padding:var(--gap-section) 0;}
.section-tight{padding:72px 0;}
.section-head{
  max-width:720px;
  margin-bottom:40px;
}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}
.section-head .kicker::before{
  content:"";
  width:22px;height:2px;background:var(--lime);display:block;
}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;max-width:640px;margin:0;}
.section-head.head-row{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  transition:transform .18s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark{background:var(--dark);color:var(--dark-text);border-color:var(--dark);}
.btn-dark:hover{background:#1D2027;color:#fff;border-color:#1D2027;transform:translateY(-1px);}
.btn-on-dark{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-on-dark:hover{background:#fff;color:var(--dark);border-color:#fff;transform:translateY(-1px);}
.btn-outline-dark{background:transparent;color:var(--dark-text);border-color:rgba(242,241,238,.35);}
.btn-outline-dark:hover{border-color:#fff;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}

/* ---------- 标签 / 徽章 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  font-size:13px;
  color:var(--ink-soft);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:transparent;
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  font-size:12px;
  line-height:1.4;
  border-radius:var(--r-pill);
  background:var(--chip);
  color:var(--ink-soft);
  font-weight:600;
}
.badge-accent{background:var(--accent);color:#fff;}
.badge-dark{background:rgba(242,241,238,.14);color:var(--dark-text);}
.mono{font-family:var(--mono);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,245,242,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
  height:70px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:22px;height:22px;
  border-radius:6px;
  background:var(--accent);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:6px;top:6px;
  width:10px;height:10px;
  background:var(--lime);
  border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:17px;font-weight:900;letter-spacing:-0.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.12em;}
.nav-links{display:flex;align-items:center;gap:22px;flex:1;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--ink-soft);
  padding:6px 0;
  font-weight:500;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--accent);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--accent);font-weight:700;}
.nav-links a.active::after{width:100%;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search svg{
  position:absolute;left:14px;width:15px;height:15px;stroke:var(--muted-2);fill:none;stroke-width:2;
}
.nav-search input{
  height:40px;
  width:210px;
  padding:0 14px 0 36px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--muted-2);}
.nav-search input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(255,78,26,.10);
}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:20px 20px 26px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-search{width:100%;margin-bottom:16px;}
.mobile-drawer .nav-search input{width:100%;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  padding:13px 2px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-soft);
}
.mobile-drawer nav a.active{color:var(--accent);font-weight:700;}
.mobile-drawer .drawer-actions{display:flex;gap:12px;margin-top:18px;}
.mobile-drawer .drawer-actions .btn{flex:1;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 24px;}
.hero-grid{align-items:center;}
.hero-copy h1{
  font-size:54px;
  line-height:1.12;
  margin-bottom:20px;
  letter-spacing:-0.025em;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--accent);
  font-weight:900;
}
.hero-sub{
  font-size:18px;
  color:var(--muted);
  margin-bottom:24px;
  max-width:520px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.hero-media{position:relative;}
.hero-media-frame{
  position:relative;
  width:100%;
  aspect-ratio:16/10;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:#E9E7E2;
}
.hero-media-frame img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.hero-media-badge{
  position:absolute;
  left:16px;top:16px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  border-radius:var(--r-pill);
}
.hero-media-note{
  margin-top:14px;
  font-size:13px;
  color:var(--muted-2);
  font-family:var(--mono);
}

/* ---------- 合集目录 ---------- */
.coll-grid{row-gap:28px;}
.coll-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.coll-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.coll-figure{
  width:100%;
  overflow:hidden;
  background:#E9E7E2;
  aspect-ratio:4/3;
}
.coll-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease;}
.coll-card:hover .coll-figure img{transform:scale(1.03);}
.coll-card.big .coll-figure{aspect-ratio:16/10;}
.coll-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.coll-body h3{font-size:18px;}
.coll-card.big .coll-body h3{font-size:24px;}
.coll-body p{font-size:14px;color:var(--muted);margin:0;}
.coll-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);
  font-size:12px;
  color:var(--muted-2);
  padding-top:12px;
  border-top:1px solid var(--line);
}

/* ---------- 精选条目横滑 ---------- */
.strip-viewport{
  overflow-x:auto;
  scrollbar-width:thin;
  padding-bottom:14px;
}
.strip-viewport::-webkit-scrollbar{height:5px;}
.strip-viewport::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.strip-track{
  display:flex;
  gap:20px;
  padding:4px max(20px,calc((100vw - 1200px) / 2 + 40px)) 8px;
  scroll-snap-type:x mandatory;
}
.strip-card{
  flex:0 0 276px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  scroll-snap-align:start;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.strip-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.strip-figure{aspect-ratio:16/9;overflow:hidden;background:#E9E7E2;}
.strip-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease;}
.strip-card:hover .strip-figure img{transform:scale(1.03);}
.strip-body{padding:16px 18px 18px;}
.strip-body h3{font-size:16px;line-height:1.45;margin-bottom:12px;}
.strip-foot{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:12px;color:var(--muted-2);}

/* ---------- CMS 最新信息 ---------- */
.cms-top{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 30px;
  margin-bottom:22px;
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.cms-top:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.cms-top h3{font-size:24px;line-height:1.35;margin-bottom:12px;}
.cms-top p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.cms-top-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;color:var(--muted-2);}
.cms-list{border-top:1px solid var(--line);}
.cms-item{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:20px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.cms-item:hover{background:#FBFBF9;padding-left:10px;}
.cms-item-index{
  font-family:var(--mono);
  font-size:13px;
  color:var(--muted-2);
  min-width:34px;
  padding-top:2px;
}
.cms-item-main{flex:1;min-width:0;}
.cms-item-main h4{font-size:17px;line-height:1.5;margin-bottom:6px;font-weight:700;}
.cms-item-main p{font-size:14px;color:var(--muted);margin:0 0 8px;}
.cms-item-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0;font-family:var(--mono);font-size:12px;color:var(--muted-2);}
.cms-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:64px 20px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--paper);
  text-align:center;
}
.cms-empty-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--chip);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);color:var(--muted-2);font-size:18px;
}
.cms-empty p{color:var(--muted);font-size:15px;margin:0;}
.cms-empty a{color:var(--accent);font-weight:700;font-size:14px;}
.cms-empty a:hover{text-decoration:underline;}

/* ---------- 相关推荐 ---------- */
.rec-grid{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--paper);}
.rec-item{
  display:flex;
  gap:16px;
  padding:22px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.rec-item:hover{background:#FBFBF9;}
.rec-thumb{width:96px;flex:0 0 96px;aspect-ratio:4/3;overflow:hidden;border-radius:10px;background:#E9E7E2;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.rec-text h3{font-size:16px;line-height:1.5;margin-bottom:8px;}
.rec-text p{font-size:13px;color:var(--muted);margin:0 0 8px;}
.rec-text .mono{font-size:12px;color:var(--muted-2);}

/* ---------- 数据条 ---------- */
.stats-band{
  background:var(--dark);
  color:var(--dark-text);
  padding:60px 0;
}
.stats-band .section-head{margin-bottom:32px;max-width:none;}
.stats-band .section-head h2{color:var(--dark-text);font-size:28px;}
.stats-band .section-head p{color:rgba(242,241,238,.62);}
.stat-cell{
  border-left:1px solid rgba(242,241,238,.14);
  padding:6px 0 6px 22px;
}
.stat-num{
  font-family:var(--mono);
  font-size:34px;
  font-weight:700;
  color:#fff;
  line-height:1.1;
}
.stat-num span{color:var(--lime);font-size:20px;}
.stat-label{font-size:14px;color:rgba(242,241,238,.6);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.faq .accordion-item{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
}
.faq .accordion-item:last-child{margin-bottom:0;}
.faq .accordion-title{
  border:none;
  padding:20px 56px 20px 24px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  position:relative;
  transition:color .2s ease;
}
.faq .accordion-title:hover{color:var(--accent);background:transparent;}
.faq .accordion-title::before{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-family:var(--mono);
  font-size:22px;
  font-weight:400;
  color:var(--accent);
  line-height:1;
}
.faq .accordion-item.is-active .accordion-title::before{content:"−";}
.faq .accordion-content{
  border:none;
  padding:0 24px 22px;
  background:transparent;
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.8;
}
.faq .accordion-item.is-active{background:#FAF9F7;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--dark);
  color:var(--dark-text);
  min-height:140px;
  display:flex;
  align-items:center;
  padding:36px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  width:100%;
}
.cta-text h2{color:#fff;font-size:26px;margin-bottom:8px;}
.cta-text p{color:rgba(242,241,238,.62);font-size:15px;margin:0;}
.cta-buttons{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.copy-feedback{
  font-family:var(--mono);
  font-size:13px;
  color:var(--lime);
  min-width:82px;
  opacity:0;
  transition:opacity .25s ease;
}
.copy-feedback.show{opacity:1;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-col h4{font-size:14px;font-weight:800;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--muted);transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--ink);}
.footer-desc{font-size:14px;color:var(--muted);max-width:300px;margin-top:14px;}
.footer-contact{font-size:14px;color:var(--muted);}
.footer-contact strong{display:block;color:var(--ink);font-weight:700;margin-bottom:4px;font-size:14px;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted-2);
  font-family:var(--mono);
}

/* ---------- 动效 ---------- */
.reveal-init{opacity:0;transform:translateY(8px);}
.reveal-in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s ease;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal-init{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--gap-section:80px;}
  .container{padding:0 28px;}
  .nav-wrap{padding:0 28px;gap:18px;}
  .nav-search input{width:150px;}
  .hero-copy h1{font-size:42px;}
  .nav-links{gap:16px;}
  .nav-links a{font-size:14px;}
  .strip-track{padding-left:28px;padding-right:28px;}
}
@media screen and (max-width:860px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-actions .ghost-btn{display:none;}
  .menu-toggle{display:flex;}
  .nav-wrap{justify-content:space-between;}
  .stat-cell{border-left:none;border-top:1px solid rgba(242,241,238,.14);padding:18px 0 0;}
}
@media screen and (max-width:768px){
  :root{--gap-section:60px;--gutter:10px;}
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;height:64px;}
  .hero{padding:40px 0 12px;}
  .hero-copy h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-cta .btn{flex:1;}
  .hero-media-frame{aspect-ratio:16/10;margin-top:30px;}
  .section-head h2{font-size:24px;}
  .section-head.head-row{flex-direction:column;align-items:flex-start;}
  .strip-card{flex:0 0 78vw;}
  .strip-track{padding-left:20px;padding-right:20px;gap:14px;}
  .cms-top{padding:22px 20px;}
  .cms-top h3{font-size:19px;}
  .cms-item{flex-direction:column;gap:10px;}
  .cms-item-side{flex-direction:row;align-items:center;gap:12px;}
  .rec-item{border-right:none;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-buttons{width:100%;}
  .cta-buttons .btn{flex:1;}
  .stat-num{font-size:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .hero-copy h1{font-size:29px;}
  .coll-card.big .coll-body h3{font-size:20px;}
  .rec-item{flex-direction:column;}
  .rec-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;}
}

/* roulang page: article */
:root{
  --paper:#F6F5F2;
  --ink:#14161A;
  --ink-2:#3A3E45;
  --muted:#6B6F76;
  --faint:#A8ACB3;
  --line:#E3E1DC;
  --soft:#F0EEE9;
  --white:#FFFFFF;
  --accent:#FF4E1A;
  --accent-deep:#E8430F;
  --lime:#C8F04A;
  --dark:#111318;
  --dark-2:#1B1E24;
  --dark-text:#F2F1EE;
  --radius:14px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow:0 12px 28px rgba(20,22,26,.10);
  --container:1200px;
  --read:820px;
  --mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 40px;}
.gx{margin-left:-12px;margin-right:-12px;}
.gx>.cell{padding-left:12px;padding-right:12px;}
.mono{font-family:var(--mono);letter-spacing:.01em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 40px;
  height:70px;display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:22px;height:22px;border-radius:6px;background:var(--accent);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px 6px 6px 6px;border-radius:2px;background:var(--paper);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-main{font-size:17px;font-weight:900;color:var(--ink);letter-spacing:-.02em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;border-radius:2px;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--accent);font-weight:700;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--white);border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s,box-shadow .2s;
}
.nav-search svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:1.8;stroke-linecap:round;}
.nav-search input{border:0;outline:none;background:transparent;font-size:14px;width:132px;color:var(--ink);}
.nav-search input::placeholder{color:var(--faint);}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,78,26,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;font-weight:700;
  transition:background .2s,color .2s,border-color .2s,transform .18s,box-shadow .2s;
  cursor:pointer;white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,78,26,.26);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-dark{background:var(--dark);color:var(--dark-text);}
.btn-dark:hover{background:#20242c;transform:translateY(-1px);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--white);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:18px 24px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-search{width:100%;margin-bottom:16px;}
.mobile-drawer .nav-search input{width:100%;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{padding:13px 2px;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink-2);}
.mobile-drawer nav a.active{color:var(--accent);font-weight:700;}
.drawer-actions{display:flex;gap:12px;margin-top:18px;}
.drawer-actions .btn{flex:1;}

/* ---------- breadcrumb ---------- */
.page-top{padding:28px 0 0;}
.breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.breadcrumb a{color:var(--muted);transition:color .2s;}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--faint);}
.breadcrumb .current{color:var(--ink-2);}

/* ---------- article head ---------- */
.article-shell{max-width:var(--read);margin:0 auto;padding:0 20px;}
.article-head{padding:34px 0 0;}
.article-flag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  font-size:12px;font-weight:700;color:var(--accent);
  background:rgba(255,78,26,.09);border:1px solid rgba(255,78,26,.22);
  padding:4px 12px;border-radius:999px;
}
.article-head h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:900;color:var(--ink);
  line-height:1.24;letter-spacing:-.025em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin:22px 0 0;font-size:13px;color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--faint);}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
  background:var(--soft);color:var(--ink-2);
}
.badge-accent{background:var(--accent);color:#fff;}
.article-rule{height:1px;background:var(--line);margin:26px 0 0;border:0;}

/* ---------- article body ---------- */
.article-body{padding:34px 0 8px;font-size:17px;line-height:1.9;color:var(--ink-2);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:26px;font-weight:800;color:var(--ink);
  margin:2em 0 .8em;padding-left:14px;border-left:3px solid var(--accent);line-height:1.35;
}
.article-body h3{font-size:20px;font-weight:800;color:var(--ink);margin:1.6em 0 .6em;}
.article-body h4{font-size:17px;font-weight:800;color:var(--ink);margin:1.4em 0 .5em;}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(255,78,26,.35);}
.article-body a:hover{border-bottom-color:var(--accent);}
.article-body strong{color:var(--ink);font-weight:800;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:#FAF9F7;
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;height:auto;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em;line-height:2;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 .35em;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 12px;text-align:left;}
.article-body th{font-weight:800;color:var(--ink);background:#FAF9F7;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}
.article-body code{font-family:var(--mono);font-size:15px;background:var(--soft);padding:2px 6px;border-radius:6px;}

/* ---------- article foot ---------- */
.article-foot{padding:14px 0 0;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;font-size:13px;padding:6px 14px;
  border-radius:999px;background:var(--white);border:1px solid var(--line);color:var(--ink-2);
  transition:border-color .2s,color .2s,transform .2s;
}
.tag:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.share-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:26px;padding:20px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);
}
.share-row .share-text{font-size:14px;color:var(--muted);}
.share-btns{display:flex;flex-wrap:wrap;gap:10px;}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.copy-hint{font-size:13px;color:var(--accent);min-height:18px;margin-top:8px;}

/* ---------- empty ---------- */
.article-empty{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--white);
  padding:64px 28px;text-align:center;margin:40px 0 20px;
}
.article-empty .empty-mark{
  width:52px;height:52px;border-radius:14px;margin:0 auto 18px;background:var(--soft);
  display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--accent);font-size:22px;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- related ---------- */
.section{padding:86px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head .kicker{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--accent);
  text-transform:uppercase;display:block;margin-bottom:10px;
}
.section-head h2{font-size:32px;font-weight:900;}
.section-head p{color:var(--muted);font-size:14px;margin-top:8px;}
.mini-card{
  display:flex;flex-direction:column;height:100%;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .24s ease-out,border-color .24s,box-shadow .24s;
}
.mini-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow);}
.mini-thumb{position:relative;padding-top:66.66%;overflow:hidden;background:var(--soft);}
.mini-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.mini-card:hover .mini-thumb img{transform:scale(1.03);}
.mini-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-body h3{font-size:18px;font-weight:800;line-height:1.45;}
.mini-card:hover .mini-body h3{color:var(--accent);}
.mini-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);margin-top:96px;}
.cta-inner{
  max-width:var(--container);margin:0 auto;padding:56px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;min-height:140px;
}
.cta-inner h2{color:var(--dark-text);font-size:30px;font-weight:900;letter-spacing:-.02em;}
.cta-inner p{color:#A9ADB6;font-size:15px;margin-top:10px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-ghost{border-color:rgba(242,241,238,.28);color:var(--dark-text);}
.cta-actions .btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- footer ---------- */
.site-footer{background:var(--white);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-col h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--ink);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--muted);transition:color .2s;}
.footer-col ul li a:hover{color:var(--ink);}
.footer-desc{font-size:14px;color:var(--muted);margin-top:16px;max-width:320px;line-height:1.8;}
.footer-contact p{font-size:14px;color:var(--muted);margin-bottom:10px;}
.footer-contact strong{display:block;color:var(--ink);font-size:13px;font-weight:700;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--faint);
}
.site-footer .brand{margin-bottom:4px;}

/* ---------- responsive ---------- */
@media screen and (max-width:1100px){
  .nav-search{display:none;}
}
@media screen and (max-width:1024px){
  .container{padding:0 32px;}
  .nav-wrap{padding:0 32px;gap:18px;}
  .nav-links a{padding:10px 9px;font-size:14px;}
  .section{padding:72px 0 0;}
}
@media screen and (max-width:900px){
  .nav-links{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .menu-toggle{display:flex;}
  .cta-inner{padding:46px 32px;}
}
@media screen and (max-width:768px){
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;height:64px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:10px;letter-spacing:.1em;}
  .article-shell{padding:0 20px;}
  .article-head h1{font-size:30px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;margin-top:1.7em;}
  .article-body h3{font-size:19px;}
  .section{padding:56px 0 0;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:24px;}
  .cta-band{margin-top:64px;}
  .cta-inner{padding:38px 20px;flex-direction:column;align-items:flex-start;}
  .cta-inner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .site-footer{padding-top:48px;}
  .footer-bottom{margin-top:34px;flex-direction:column;}
  .share-row{padding:18px;}
}
@media screen and (max-width:520px){
  .article-meta{gap:8px 14px;}
  .share-btns{width:100%;}
  .share-btns .btn{flex:1;}
  .back-row .btn{flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --paper:#F6F5F2;
  --ink:#14161A;
  --ink-2:#3A3E45;
  --dark:#111318;
  --dark-text:#F2F1EE;
  --accent:#FF4E1A;
  --accent-dark:#E1400F;
  --lime:#C8F04A;
  --muted:#6B6F76;
  --soft:#A8ACB3;
  --line:#E3E1DC;
  --card-bg:#FFFFFF;
  --chip-bg:#F0EEE9;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-hover:0 12px 28px rgba(20,22,26,.10);
  --mono:ui-monospace,"IBM Plex Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,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:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--sans);color:var(--ink);margin:0;font-weight:800;letter-spacing:-0.02em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 40px;width:100%;}
.gx{row-gap:0;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 40px;
  height:70px;display:flex;align-items:center;gap:26px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:20px;height:20px;border-radius:5px;background:var(--accent);
  position:relative;display:inline-block;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;right:-5px;bottom:-5px;
  width:9px;height:9px;border-radius:2px;background:var(--ink);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-main{font-size:16px;font-weight:900;letter-spacing:-0.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.1em;}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:6px;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:600;color:var(--ink);
  padding:6px 0;white-space:nowrap;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--accent);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--accent);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:198px;height:38px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:16px;height:16px;flex:none;fill:none;stroke:var(--soft);stroke-width:2;stroke-linecap:round;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:13.5px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--soft);}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,78,26,.12);}
.nav-search:focus-within svg{stroke:var(--accent);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;cursor:pointer;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--paper);padding:18px 20px 24px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-search{width:100%;margin-bottom:16px;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  padding:14px 4px;font-size:15px;font-weight:600;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.mobile-drawer nav a::after{content:"›";color:var(--soft);font-size:18px;}
.mobile-drawer nav a.active{color:var(--accent);}
.drawer-actions{display:flex;gap:12px;margin-top:18px;}
.drawer-actions .btn{flex:1;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .12s ease;
}
.btn:hover{transform:translate(0,-1px);}
.btn:active{transform:translateY(1px);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#EFEDE8;}
.btn-outline-light{background:transparent;color:var(--dark-text);border-color:rgba(242,241,238,.35);}
.btn-outline-light:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--soft);}
.crumbs a:hover{color:var(--accent);}
.crumbs .current{color:var(--ink-2);}

/* ---------- Hero 首屏 7/5 ---------- */
.hero-split{padding:44px 0 84px;}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.1;font-weight:900;letter-spacing:-0.02em;margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:17px;line-height:1.75;color:var(--ink-2);max-width:33em;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 20px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--ink-2);background:rgba(255,255,255,.6);
}
.hero-figure{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  aspect-ratio:16/10;background:#E7E5E0;border:1px solid var(--line);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.fig-badge{
  position:absolute;left:14px;top:14px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:var(--radius-pill);
}

/* ---------- 通用板块标题 ---------- */
.section{padding:0 0 88px;}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.sec-head p{color:var(--muted);font-size:15.5px;line-height:1.8;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:12.5px;color:var(--accent);letter-spacing:.08em;margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block;}

/* ---------- 交错对照卡 ---------- */
.split-block{display:flex;align-items:center;gap:56px;}
.split-block+.split-block{margin-top:56px;padding-top:56px;border-top:1px solid var(--line);}
.split-block.reverse{flex-direction:row-reverse;}
.split-media{flex:0 0 44%;aspect-ratio:4/3;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#E7E5E0;transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease;}
.split-body{flex:1;}
.split-num{
  font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.06em;
  display:inline-block;padding-bottom:6px;border-bottom:2px solid var(--lime);margin-bottom:14px;
}
.split-body h3{font-size:22px;margin-bottom:12px;letter-spacing:-0.01em;}
.split-body p{color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.split-list{margin-top:18px;display:flex;flex-direction:column;gap:8px;}
.split-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);
}
.split-list li::before{
  content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent);
}
.split-block:hover .split-media{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.split-block:hover .split-media img{transform:scale(1.03);}

/* ---------- 速查细线列表 ---------- */
.spec-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;}
.spec-item{
  display:flex;gap:20px;padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.spec-item:hover{background:rgba(255,255,255,.75);padding-left:10px;}
.spec-k{flex:0 0 168px;font-size:14.5px;font-weight:700;}
.spec-k .mono{display:block;font-size:12px;color:var(--soft);font-weight:400;margin-top:2px;}
.spec-v{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ---------- 数据信息条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;overflow:hidden;
}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-num{font-family:var(--mono);font-size:27px;font-weight:600;color:var(--ink);letter-spacing:-0.01em;}
.stat-num span{font-size:14px;color:var(--muted);margin-left:4px;}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(255,78,26,.45);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--mono);font-size:20px;color:var(--accent);line-height:1;flex:none;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{
  padding:4px 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);
  background:#FAF9F7;border-top:1px solid var(--line);
}

/* ---------- CTA 通栏 ---------- */
.cta-bar{background:var(--dark);color:var(--dark-text);padding:0;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  min-height:150px;padding:32px 0;
}
.cta-inner h2{color:var(--dark-text);font-size:clamp(20px,2.2vw,26px);margin-bottom:8px;}
.cta-inner p{color:rgba(242,241,238,.7);font-size:14.5px;max-width:38em;}
.cta-actions{display:flex;gap:12px;flex:none;}
.copy-feedback{font-size:13px;color:var(--lime);min-height:20px;margin-top:10px;}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding:64px 0 28px;background:var(--paper);}
.footer-col h4{font-size:14px;font-weight:800;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);transition:color .2s ease;}
.footer-col ul a:hover{color:var(--ink);}
.footer-desc{font-size:14px;color:var(--muted);margin-top:16px;max-width:28em;line-height:1.8;}
.footer-contact p{font-size:14px;color:var(--muted);margin-bottom:8px;}
.footer-contact strong{color:var(--ink);font-size:13.5px;display:block;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--soft);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-wrap{padding:0 24px;gap:16px;}
  .nav-links{display:none;}
  .nav-search{display:none;}
  .menu-toggle{display:inline-flex;}
  .container{padding:0 24px;}
  .hero-split{padding:36px 0 64px;}
  .hero-figure{margin-top:32px;}
  .section{padding-bottom:72px;}
  .split-block{gap:36px;}
  .spec-wrap{grid-template-columns:1fr;gap:0;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:768px){
  body{font-size:16px;}
  .nav-wrap{padding:0 20px;height:64px;}
  .container{padding:0 20px;}
  .brand-sub{display:none;}
  .btn-sm{padding:0 14px;}
  .hero-copy h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-cta .btn{flex:1;min-width:140px;}
  .hero-figure{aspect-ratio:16/10;max-height:240px;}
  .split-block,.split-block.reverse{flex-direction:column;gap:24px;}
  .split-block+.split-block{margin-top:40px;padding-top:40px;}
  .split-media{flex:none;width:100%;}
  .split-body h3{font-size:19px;}
  .spec-k{flex:0 0 120px;font-size:14px;}
  .stat-bar{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);}
  .stat-cell:last-child{border-bottom:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;min-height:0;padding:40px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .section{padding-bottom:56px;}
}
@media (max-width:520px){
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .faq-item summary{font-size:15.5px;padding:16px 18px;}
  .spec-item{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --bg:#F6F5F2;
  --dark:#111318;
  --ink:#14161A;
  --ink-soft:#3A3E45;
  --accent:#FF4E1A;
  --lime:#C8F04A;
  --muted:#6B6F76;
  --muted-2:#A8ACB3;
  --line:#E3E1DC;
  --card:#FFFFFF;
  --chip:#F0EEE9;
  --light-text:#F2F1EE;
  --r-card:14px;
  --r-img:12px;
  --r-pill:999px;
  --r-input:10px;
  --shadow:0 12px 28px rgba(20,22,26,.10);
  --mono:ui-monospace,SFMono-Regular,"IBM Plex Mono",Menlo,Consolas,monospace;
  --sans:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec-gap:104px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.02em;line-height:1.22;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button{font-size:16px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.grid-x.gx{margin-left:-14px;margin-right:-14px;}
.grid-x.gx>.cell{padding-left:14px;padding-right:14px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.sec{padding:var(--sec-gap) 0;}
.sec-tight{padding:72px 0;}
.sec-head{margin-bottom:36px;max-width:760px;}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;
}
.sec-label::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}
.sec-title{font-size:32px;}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  border:1px solid transparent;background:var(--card);color:var(--ink);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out,box-shadow .24s ease-out;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:#E8420F;border-color:#E8420F;color:#fff;box-shadow:var(--shadow);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-ghost.on-dark{border-color:rgba(242,241,238,.32);color:var(--light-text);}
.btn-ghost.on-dark:hover{border-color:var(--lime);color:var(--lime);}
.btn-dark{background:var(--dark);color:var(--light-text);border-color:var(--dark);}
.btn-dark:hover{background:#000;color:#fff;}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(246,245,242,.94);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(8px);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 40px;min-height:70px;
  display:flex;align-items:center;gap:26px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:20px;height:20px;border-radius:6px;background:var(--accent);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:9px;height:9px;
  background:var(--lime);border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:16px;font-weight:900;letter-spacing:-0.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;font-family:var(--mono);}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-soft);padding:6px 0;
  transition:color .2s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .2s ease-out;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--accent);font-weight:700;}
.nav-links a.active::after{width:100%;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,78,26,.10);}
.nav-search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round;}
.nav-search input{
  border:0;outline:0;background:transparent;width:132px;font-size:14px;color:var(--ink);
}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{width:17px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:18px 20px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;margin-top:16px;}
.mobile-drawer nav a{
  padding:13px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-soft);
}
.mobile-drawer nav a.active{color:var(--accent);font-weight:700;}
.drawer-actions{display:flex;gap:10px;margin-top:18px;}
.drawer-actions .btn{flex:1;}
.mobile-drawer .nav-search{width:100%;}
.mobile-drawer .nav-search input{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{color:var(--muted-2);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  padding:40px 0 8px;
}
.cat-hero-card{
  position:relative;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;overflow:hidden;
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;
  opacity:.16;
}
.cat-hero-inner{position:relative;padding:46px 44px 48px;}
.cat-hero h1{font-size:clamp(30px,4.2vw,50px);max-width:20em;}
.cat-hero h1 em{font-style:normal;color:var(--accent);}
.cat-hero .lead{margin-top:18px;max-width:640px;color:var(--ink-soft);font-size:16px;line-height:1.85;}
.tagline{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);background:rgba(255,255,255,.7);
  transition:border-color .2s ease-out,color .2s ease-out;
}
.tag:hover{border-color:var(--accent);color:var(--accent);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stat b{display:block;font-family:var(--mono);font-size:24px;font-weight:700;letter-spacing:-0.01em;}
.hero-stat span{font-size:13px;color:var(--muted);}

/* ---------- 数据条 ---------- */
.data-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.data-strip-inner{display:flex;flex-wrap:wrap;gap:0;}
.data-item{
  flex:1 1 200px;padding:26px 26px 26px 0;border-right:1px solid var(--line);
}
.data-item:last-child{border-right:0;}
.data-item b{display:block;font-family:var(--mono);font-size:26px;color:var(--ink);}
.data-item b i{font-style:normal;color:var(--accent);font-size:16px;margin-left:4px;}
.data-item span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 索引 + 分组 ---------- */
.index-layout{padding-top:88px;}
.index-aside{position:static;}
.index-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:24px 22px;
}
.index-card h2{font-size:16px;margin-bottom:6px;}
.index-card p.hint{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:16px;}
.index-list li a{
  display:flex;gap:12px;align-items:flex-start;padding:11px 10px;border-radius:10px;
  font-size:14px;color:var(--ink-soft);transition:background-color .2s ease-out,color .2s ease-out;
}
.index-list li a .no{font-family:var(--mono);font-size:12px;color:var(--muted-2);padding-top:3px;}
.index-list li a:hover{background:#FAF9F7;color:var(--accent);}
.index-list li a:hover .no{color:var(--accent);}
.index-figure{margin-top:20px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.index-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.index-figure figcaption{font-size:12px;color:var(--muted);padding:10px 12px;background:#FAF9F7;}

.group-block{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  padding:28px 26px 22px;margin-bottom:22px;scroll-margin-top:96px;
  transition:border-color .24s ease-out,box-shadow .24s ease-out;
}
.group-block:hover{border-color:#D8D5CF;}
.group-head{display:flex;align-items:baseline;gap:14px;border-bottom:1px solid var(--line);padding-bottom:16px;}
.group-no{
  font-family:var(--mono);font-size:15px;color:var(--ink);font-weight:700;
  border-bottom:2px solid var(--lime);line-height:1.5;
}
.group-head h3{font-size:20px;}
.group-head p{margin-left:auto;font-size:13px;color:var(--muted);}
.group-intro{font-size:14px;color:var(--muted);line-height:1.8;margin:16px 0 4px;}
.entry-list{margin-top:8px;}
.entry-item{
  display:flex;align-items:flex-start;gap:16px;padding:16px 10px 16px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease-out,transform .24s ease-out;
}
.entry-list .entry-item:last-child{border-bottom:0;}
.entry-item:hover{background:#FAF9F7;transform:translateX(2px);}
.entry-no{font-family:var(--mono);font-size:13px;color:var(--muted-2);padding-top:4px;min-width:26px;}
.entry-body{flex:1 1 auto;}
.entry-title{display:block;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;}
.entry-desc{display:block;font-size:14px;color:var(--muted);margin-top:6px;line-height:1.75;}
.entry-arrow{
  font-family:var(--mono);color:var(--muted-2);font-size:16px;padding-top:3px;
  transition:transform .24s ease-out,color .24s ease-out;
}
.entry-item:hover .entry-arrow{transform:translateX(4px);color:var(--accent);}
.entry-badge{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--chip);color:var(--ink-soft);margin-right:8px;vertical-align:2px;
}
.entry-badge.hot{background:var(--accent);color:#fff;}

/* ---------- 流程四步 ---------- */
.steps{display:grid;gap:18px;grid-template-columns:repeat(4,1fr);}
.step-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:24px 20px;
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.step-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow);}
.step-card .step-no{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.08em;}
.step-card h3{font-size:17px;margin-top:12px;}
.step-card p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-list{margin:0;border:0;background:transparent;}
.faq-list .accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden;}
.faq-list .accordion-title{
  font-size:17px;font-weight:700;color:var(--ink);padding:18px 54px 18px 20px;
  border:0;background:#fff;display:block;position:relative;line-height:1.5;
}
.faq-list .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:20px;color:var(--accent);border:0;margin:0;width:auto;height:auto;
  line-height:1;
}
.faq-list .accordion-item.is-active .accordion-title::before{content:"–";}
.faq-list .accordion-title:hover{background:#FAF9F7;color:var(--accent);}
.faq-list .accordion-content{background:#FAF9F7;border:0;padding:16px 20px 20px;color:var(--ink-soft);font-size:15px;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:var(--light-text);}
.cta-inner{
  display:flex;align-items:center;gap:32px;padding:44px 0;min-height:140px;
}
.cta-text h2{color:var(--light-text);font-size:26px;}
.cta-text p{color:rgba(242,241,238,.72);font-size:15px;margin-top:10px;}
.cta-actions{margin-left:auto;display:flex;flex-wrap:wrap;gap:12px;}
.copy-feedback{font-size:13px;color:var(--lime);margin-top:12px;min-height:20px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;}
.footer-col h4{font-size:14px;margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);transition:color .2s ease-out;}
.footer-col ul a:hover{color:var(--ink);}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.8;margin-top:16px;max-width:320px;}
.footer-contact p{font-size:14px;color:var(--muted);margin-bottom:10px;line-height:1.7;}
.footer-contact strong{color:var(--ink);font-weight:600;margin-right:8px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted-2);
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(8px);animation:rise .5s ease-out forwards;}
.reveal:nth-child(2){animation-delay:.04s;}
.reveal:nth-child(3){animation-delay:.08s;}
.reveal:nth-child(4){animation-delay:.12s;}
.reveal:nth-child(5){animation-delay:.16s;}
.reveal:nth-child(6){animation-delay:.2s;}
.reveal:nth-child(7){animation-delay:.24s;}
.reveal:nth-child(8){animation-delay:.28s;}
@keyframes rise{to{opacity:1;transform:translateY(0);}}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .container{padding:0 28px;}
  .nav-wrap{padding:0 28px;gap:16px;}
  .nav-links{gap:16px;}
  .nav-links a{font-size:14px;}
  .nav-search input{width:96px;}
  :root{--sec-gap:80px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-actions{margin-left:0;}
}
@media screen and (max-width:860px){
  .nav-search{display:none;}
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .mobile-drawer .nav-search{display:flex;}
}
@media screen and (max-width:768px){
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;min-height:64px;}
  :root{--sec-gap:60px;}
  .sec-title{font-size:24px;}
  .cat-hero-inner{padding:32px 22px 34px;}
  .cat-hero .lead{font-size:15px;}
  .hero-stats{gap:20px;}
  .hero-stat b{font-size:20px;}
  .data-item{flex:1 1 100%;border-right:0;border-bottom:1px solid var(--line);padding:18px 0;}
  .data-item:last-child{border-bottom:0;}
  .group-block{padding:22px 18px 16px;}
  .group-head p{display:none;}
  .entry-item{gap:12px;padding:14px 2px;}
  .entry-title{font-size:16px;}
  .steps{grid-template-columns:1fr;}
  .cta-text h2{font-size:21px;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  .brand-sub{font-size:10px;}
  .tagline{gap:8px;}
  .tag{font-size:12px;padding:0 11px;}
  .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --paper:#F6F5F2;
  --ink:#14161A;
  --ink-2:#3A3E45;
  --muted:#6B6F76;
  --faint:#A8ACB3;
  --line:#E3E1DC;
  --soft:#F0EEE9;
  --accent:#FF4E1A;
  --accent-deep:#E23F0D;
  --lime:#C8F04A;
  --dark:#111318;
  --light:#F2F1EE;
  --fafafa:#FAF9F7;
  --radius-card:14px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-hover:0 12px 28px rgba(20,22,26,.10);
  --mono:ui-monospace,"SFMono-Regular","IBM Plex Mono",Menlo,Consolas,monospace;
  --sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,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:16px;line-height:1.75;-webkit-font-smoothing:antialiased;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:900;letter-spacing:-.02em;line-height:1.22;}
p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding-top:96px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:38px;}
.section-head .eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--accent);}
.section-head h2{font-size:32px;margin-top:10px;}
.section-head .head-note{max-width:460px;color:var(--muted);font-size:15px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-pill);font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .18s ease,background-color .2s ease,border-color .2s ease,color .2s ease;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff;}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-dark{background:var(--ink);color:var(--light);}
.btn-dark:hover{background:#000;transform:translateY(-1px);}
.btn-light{background:var(--light);color:var(--ink);}
.btn-light:hover{background:#fff;transform:translateY(-1px);}
.btn-outline-light{border-color:rgba(242,241,238,.34);color:var(--light);}
.btn-outline-light:hover{border-color:var(--light);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,245,242,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(10px);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:70px;max-width:1200px;margin:0 auto;padding:0 40px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{position:relative;width:22px;height:22px;border-radius:7px;background:var(--accent);flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;right:5px;top:5px;width:9px;height:9px;border-radius:3px;background:var(--lime);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:15px;font-weight:900;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:24px;}
.nav-links a{position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s 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:700;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);transition:border-color .2s ease,box-shadow .2s ease;}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,78,26,.12);}
.nav-search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--faint);stroke-width:2;stroke-linecap:round;}
.nav-search input{width:126px;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--faint);}
.menu-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:12px;}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
.menu-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-active span:nth-child(2){opacity:0;}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;padding:16px 20px 22px;background:#fff;border-top:1px solid var(--line);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;margin-top:14px;}
.mobile-drawer nav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);}
.mobile-drawer nav a.active{color:var(--accent);font-weight:700;}
.drawer-actions{display:flex;gap:12px;margin-top:18px;}
.drawer-actions .btn{flex:1;}

/* ---------- 首屏 ---------- */
.page-hero{padding:74px 0 30px;}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);font-size:13px;color:var(--muted);}
.kicker i{display:block;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.page-hero h1{max-width:17em;margin:22px 0 18px;font-size:clamp(30px,4.4vw,54px);}
.page-hero h1 .hl{box-shadow:inset 0 -.18em 0 rgba(255,78,26,.22);}
.page-hero .lede{max-width:660px;font-size:18px;color:var(--ink-2);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px;}
.hero-tags span{padding:6px 14px;border:1px solid var(--line);border-radius:var(--radius-pill);background:#fff;font-size:13px;color:var(--ink-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-note{margin-top:20px;font-family:var(--mono);font-size:13px;color:var(--faint);}

/* ---------- 封面带 ---------- */
.rail-wrap{position:relative;margin-top:16px;}
.cover-rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory;scrollbar-width:none;}
.cover-rail::-webkit-scrollbar{display:none;}
.cover-card{flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;}
.cover-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.cover-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--soft);}
.cover-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.cover-card:hover .thumb img{transform:scale(1.03);}
.cover-card .body{padding:18px 20px 22px;}
.cover-card .no{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.1em;}
.cover-card h3{font-size:18px;margin:8px 0 8px;}
.cover-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.rail-progress{height:3px;border-radius:var(--radius-pill);background:var(--line);overflow:hidden;margin-top:4px;}
.rail-progress i{display:block;width:14%;height:100%;border-radius:var(--radius-pill);background:var(--accent);transition:width .2s ease;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:6px;}
.timeline::before{content:"";position:absolute;left:7px;top:16px;bottom:44px;width:1px;background:var(--line);}
.tl-item{position:relative;padding:0 0 48px 48px;}
.tl-item:last-child{padding-bottom:10px;}
.tl-item::before{content:"";position:absolute;left:0;top:9px;width:15px;height:15px;border-radius:50%;background:var(--lime);border:2px solid var(--ink);}
.tl-no{font-family:var(--mono);font-size:13px;letter-spacing:.12em;color:var(--muted);}
.tl-item h3{font-size:20px;margin:6px 0 10px;}
.tl-item p{max-width:780px;font-size:16px;color:var(--ink-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tl-tags span{padding:4px 12px;border-radius:var(--radius-pill);background:var(--soft);font-size:12px;color:var(--ink-2);}

/* ---------- 数据条 ---------- */
.data-band{margin-top:76px;background:var(--dark);color:var(--light);}
.data-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:38px 0;}
.data-cell{border-left:1px solid rgba(242,241,238,.16);padding-left:20px;}
.data-cell:first-child{border-left:0;padding-left:0;}
.data-cell b{display:block;font-family:var(--mono);font-size:32px;font-weight:700;color:var(--lime);line-height:1.1;}
.data-cell span{display:block;margin-top:8px;font-size:14px;color:#A8ACB3;}

/* ---------- 速查卡 ---------- */
.grid-gap{margin-left:-11px;margin-right:-11px;row-gap:22px;}
.grid-gap>.cell{padding-left:11px;padding-right:11px;}
.check-card{height:100%;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;}
.check-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.check-card h3{font-size:18px;margin-bottom:12px;}
.check-card dl{margin:0;}
.check-card dt{font-family:var(--mono);font-size:12px;color:var(--faint);letter-spacing:.08em;margin-top:12px;}
.check-card dd{margin:4px 0 0;font-size:15px;color:var(--ink-2);line-height:1.75;}

/* ---------- 适用场景 ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;}
.frame{aspect-ratio:4/3;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;background:var(--soft);}
.frame img{width:100%;height:100%;object-fit:cover;}
.scene-list{margin-top:8px;}
.scene-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.scene-list li:last-child{border-bottom:0;}
.scene-list .idx{font-family:var(--mono);font-size:13px;color:var(--accent);padding-top:3px;}
.scene-list h3{font-size:17px;margin-bottom:6px;}
.scene-list p{font-size:15px;color:var(--muted);}

/* ---------- 常见问题 ---------- */
.faq-list{max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;}
.faq-item summary{position:relative;padding:18px 56px 18px 22px;font-size:17px;font-weight:700;cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--muted);line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary{border-bottom:1px solid var(--line);}
.faq-body{padding:18px 22px;background:var(--fafafa);font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- 深色 CTA ---------- */
.cta-band{margin-top:96px;background:var(--dark);color:var(--light);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;min-height:160px;padding:42px 0;}
.cta-copy h2{color:var(--light);font-size:28px;max-width:24em;}
.cta-copy p{margin-top:12px;font-size:15px;color:#A8ACB3;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.copy-feedback{margin-top:16px;min-height:20px;font-size:13px;color:var(--lime);}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding:66px 0 26px;background:#fff;border-top:1px solid var(--line);}
.footer-col h4{margin-bottom:16px;font-size:14px;font-weight:800;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--ink);}
.footer-desc{max-width:330px;margin-top:16px;font-size:14px;color:var(--muted);}
.footer-contact p{margin-bottom:8px;font-size:14px;color:var(--muted);}
.footer-contact strong{margin-right:8px;font-weight:600;color:var(--ink);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:46px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--faint);}

/* ---------- 入场动效 ---------- */
.has-js [data-reveal]{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease;}
.has-js [data-reveal].is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .has-js [data-reveal]{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .container{padding:0 28px;}
  .nav-wrap{padding:0 28px;gap:18px;}
  .nav-search{display:none;}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .hero-actions .btn{flex:1 1 200px;}
  .section{padding-top:64px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .section-head h2{font-size:26px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .data-inner{grid-template-columns:repeat(2,1fr);gap:24px;}
  .data-cell:nth-child(3){border-left:0;padding-left:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:36px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 160px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;height:64px;}
  .nav-actions .ghost-btn{display:none;}
  .page-hero{padding:48px 0 20px;}
  .page-hero h1{font-size:31px;margin:18px 0 14px;}
  .page-hero .lede{font-size:16px;}
  .cover-card{flex:0 0 78%;}
  .cover-rail{padding-bottom:16px;}
  .tl-item{padding-left:34px;padding-bottom:38px;}
  .timeline::before{left:6px;}
  .tl-item::before{left:0;width:13px;height:13px;}
  .tl-item h3{font-size:18px;}
  .data-inner{grid-template-columns:1fr;gap:20px;}
  .data-cell{border-left:0;padding-left:0;padding-top:16px;border-top:1px solid rgba(242,241,238,.16);}
  .data-cell:first-child{padding-top:0;border-top:0;}
  .cta-copy h2{font-size:23px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}