/* roulang page: index */
:root{
  --c-ink:#1A1A17;
  --c-ink-2:#6B6E68;
  --c-paper:#F6F4EF;
  --c-white:#FFFFFF;
  --c-green:#1E3A34;
  --c-green-deep:#142722;
  --c-accent:#D8622C;
  --c-line:#E4E1D9;
  --c-reverse:#F2F0EA;
  --r-card:14px;
  --r-btn:999px;
  --r-input:10px;
  --shadow-hover:0 8px 24px rgba(20,39,34,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --pad-x:32px;
  --sec-y:110px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--c-ink);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y);}
.section--tight{padding-top:72px;padding-bottom:72px;}
.section--dark{background:var(--c-green);color:var(--c-reverse);}
.section--white{background:var(--c-white);}

.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-accent);
  font-weight:600;
  margin-bottom:16px;
}
.eyebrow--muted{color:var(--c-ink-2);}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head--split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  max-width:none;
}
.section-title{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:600;
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-desc{
  margin-top:16px;
  color:var(--c-ink-2);
  font-size:16px;
  max-width:640px;
}
.section--dark .section-desc{color:rgba(242,240,234,.72);}
.link-more{
  font-size:15px;
  color:var(--c-green);
  border-bottom:1px solid var(--c-line);
  padding-bottom:3px;
  white-space:nowrap;
}
.link-more:hover{color:var(--c-accent);border-color:var(--c-accent);}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:all .26s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--c-green);color:#fff;}
.btn--primary:hover{background:var(--c-green-deep);color:#fff;transform:translateX(2px);}
.btn--ghost{background:transparent;color:var(--c-green);border-color:var(--c-green);}
.btn--ghost:hover{background:var(--c-green);color:#fff;}
.btn--light{background:transparent;color:var(--c-reverse);border-color:rgba(242,240,234,.45);}
.btn--light:hover{background:var(--c-reverse);color:var(--c-green-deep);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:#bf5324;color:#fff;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12px;
  letter-spacing:.04em;
  border-radius:8px;
  background:rgba(30,58,52,.07);
  color:var(--c-green);
  font-weight:600;
}
.badge--accent{background:rgba(216,98,44,.10);color:var(--c-accent);}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--c-white);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,39,34,.08);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:32px;
  height:78px;
  transition:height .3s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{width:30px;height:30px;color:var(--c-green);flex-shrink:0;}
.brand__text{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.brand:hover .brand__text{color:var(--c-green);}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:8px;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--c-ink);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--c-accent);
  transition:width .28s var(--ease);
}
.nav-links a:hover::after,
.nav-links a.is-active::after{width:100%;}
.nav-links a.is-active{color:var(--c-green);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 16px;
  background:var(--c-paper);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.nav-search:focus-within{border-color:var(--c-green);background:#fff;}
.nav-search svg{width:16px;height:16px;color:var(--c-ink-2);flex-shrink:0;}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:132px;
  font-size:14px;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:var(--c-ink);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--c-ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:18px var(--pad-x) 26px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:13px 0;
  font-size:16px;
  border-bottom:1px solid var(--c-line);
}
.nav-drawer .btn{width:100%;margin-top:18px;}

/* Hero */
.hero{
  background:var(--c-white);
  padding-top:72px;
  padding-bottom:0;
  position:relative;
  overflow:hidden;
}
.hero__grid{
  display:grid;
  grid-template-columns:1.15fr .95fr;
  gap:64px;
  align-items:center;
}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:700;
  line-height:1.15;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero__sub{
  font-size:17px;
  color:var(--c-ink-2);
  max-width:520px;
  margin-bottom:32px;
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero__media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:4/3;
}
.hero__media img{width:100%;height:100%;object-fit:cover;}
.hero__deco-line{
  position:absolute;
  left:-24px;top:36px;
  width:48px;height:1px;
  background:var(--c-accent);
}
.hero__deco-box{
  position:absolute;
  right:-18px;bottom:44px;
  width:64px;height:64px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-paper);
}
.hero__stats{
  margin-top:64px;
  border-top:1px solid var(--c-line);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:26px 0 30px;
}
.hero__stats li{display:flex;flex-direction:column;gap:6px;}
.hero__stats .k{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--c-ink-2);
  text-transform:uppercase;
}
.hero__stats .v{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:600;
  color:var(--c-green);
}

/* 服务编号列表 */
.svc-list{border-top:1px solid var(--c-line);}
.svc-row{
  display:grid;
  grid-template-columns:1fr 340px;
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--c-line);
}
.svc-row:nth-child(even){grid-template-columns:340px 1fr;}
.svc-row:nth-child(even) .svc-row__media{order:-1;}
.svc-row__num{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:600;
  color:var(--c-accent);
  letter-spacing:.08em;
  display:block;
  margin-bottom:12px;
}
.svc-row h3{
  font-size:23px;
  font-weight:600;
  margin-bottom:12px;
  transition:color .26s var(--ease);
}
.svc-row p{color:var(--c-ink-2);font-size:16px;max-width:560px;}
.svc-row:hover h3{color:var(--c-green);}
.svc-row__media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/9;
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.svc-row:hover .svc-row__media{border-color:var(--c-green);transform:translateY(-2px);}
.svc-row__media img{width:100%;height:100%;object-fit:cover;}

/* 数据指标 */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:8px;
}
.metric{border-left:1px solid rgba(242,240,234,.18);padding-left:24px;}
.metric:first-child{border-left:0;padding-left:0;}
.metric__num{
  font-family:var(--font-num);
  font-size:clamp(34px,4vw,52px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.02em;
  display:block;
}
.metric__num small{font-size:.45em;font-weight:600;margin-left:4px;letter-spacing:0;}
.metric__label{
  display:block;
  margin-top:12px;
  font-size:12px;
  letter-spacing:.16em;
  color:rgba(242,240,234,.66);
}

/* 案例 */
.case-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
  padding:56px 0;
  border-bottom:1px solid var(--c-line);
}
.case-row:last-child{border-bottom:0;}
.case-row--flip .case-row__media{order:-1;}
.case-row__media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/9;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.case-row__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.case-row:hover .case-row__media{border-color:var(--c-green);}
.case-row:hover .case-row__media img{transform:scale(1.03);}
.case-row h3{font-size:24px;font-weight:600;margin:16px 0 12px;}
.case-row p{color:var(--c-ink-2);font-size:16px;}

/* 流程时间轴 */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  position:relative;
  padding-top:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:var(--c-line);
}
.timeline__item{position:relative;padding-top:22px;}
.timeline__item::before{
  content:"";
  position:absolute;
  top:-5px;left:0;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--c-accent);
}
.timeline__num{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-ink-2);
  display:block;
  margin-bottom:14px;
}
.timeline__item h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.timeline__item p{font-size:15px;color:var(--c-ink-2);}

/* 资讯卡片 */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--c-white);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.news-card:hover{
  transform:translateY(-2px);
  border-color:var(--c-green);
  box-shadow:var(--shadow-hover);
}
.news-card__media{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-paper);
}
.news-card__media img{width:100%;height:100%;object-fit:cover;}
.news-card__body{
  padding:22px 22px 20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-card__title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  margin:14px 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__title a:hover{color:var(--c-green);}
.news-card__desc{
  font-size:14px;
  color:var(--c-ink-2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
}
.news-card__meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--c-ink-2);
  letter-spacing:.02em;
}
.news-card__more{color:var(--c-green);font-weight:600;}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:64px 24px;
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-white);
}
.empty-state p{color:var(--c-ink-2);margin-bottom:20px;}

/* FAQ */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 48px;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:24px 0;
  background:none;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-ink);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--c-green);}
.faq-mark{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:var(--c-accent);
  border:1px solid var(--c-line);
  border-radius:6px;
  width:24px;height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  margin-top:2px;
}
.faq-plus{
  margin-left:auto;
  position:relative;
  width:14px;height:14px;
  flex-shrink:0;
  margin-top:5px;
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--c-ink-2);
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.faq-plus::before{top:6px;left:0;width:14px;height:1.5px;}
.faq-plus::after{left:6px;top:0;width:1.5px;height:14px;}
.faq-item.is-open .faq-plus::after{transform:rotate(90deg);}
.faq-item.is-open .faq-plus::before{background:var(--c-accent);}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .26s var(--ease);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{
  padding:0 0 24px 40px;
  color:var(--c-ink-2);
  font-size:15.5px;
}

/* 联系 */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:start;
}
.form-card{
  background:var(--c-white);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:36px;
}
.field{margin-bottom:22px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--c-ink);
}
.field input,.field textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  background:var(--c-paper);
  outline:none;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.field textarea{min-height:118px;resize:vertical;}
.field input:focus,.field textarea:focus{border-color:var(--c-green);background:#fff;}
.field .hint{font-size:13px;color:var(--c-ink-2);margin-top:6px;}
.form-note{
  margin-top:16px;
  font-size:13px;
  color:var(--c-accent);
}
.contact-info dl{margin:0;}
.contact-info dt{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--c-ink-2);
  margin-top:28px;
}
.contact-info dd{
  margin:8px 0 0;
  font-size:17px;
  font-weight:600;
}
.contact-info p{color:var(--c-ink-2);font-size:15.5px;margin-top:24px;}

/* 页脚 */
.site-footer{
  background:var(--c-green-deep);
  color:rgba(242,240,234,.72);
  padding-top:72px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:56px;
  border-bottom:1px solid rgba(242,240,234,.14);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand svg{width:26px;height:26px;color:var(--c-reverse);}
.footer-brand span{font-size:18px;font-weight:700;color:var(--c-reverse);}
.site-footer p{font-size:14.5px;line-height:1.8;max-width:340px;}
.footer-col h4{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--c-reverse);
  margin-bottom:20px;
  font-weight:600;
}
.footer-col li{margin-bottom:12px;}
.site-footer a{color:rgba(242,240,234,.72);}
.site-footer a:hover{color:var(--c-accent);}
.footer-bottom{
  padding:26px 0 34px;
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(242,240,234,.5);
}

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

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

@media (max-width:1023px){
  :root{--pad-x:24px;--sec-y:76px;}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding-top:52px;}
  .hero__grid{grid-template-columns:1fr;gap:40px;}
  .hero__media{aspect-ratio:16/9;}
  .hero__deco-box{display:none;}
  .svc-row,.svc-row:nth-child(even){grid-template-columns:1fr;gap:24px;}
  .svc-row:nth-child(even) .svc-row__media{order:0;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .metric:nth-child(3){border-left:0;padding-left:0;}
  .case-row{grid-template-columns:1fr;gap:28px;}
  .case-row--flip .case-row__media{order:0;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}

@media (max-width:520px){
  :root{--pad-x:20px;--sec-y:56px;}
  .brand__text{font-size:17px;}
  .hero h1{font-size:30px;}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:20px;}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:16px;}
  .metrics{grid-template-columns:1fr;gap:26px;}
  .metric{border-left:0;padding-left:0;}
  .timeline{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --brand:#1E3A34;
  --brand-deep:#142722;
  --accent:#D8622C;
  --accent-deep:#C2551F;
  --bg:#F6F4EF;
  --surface:#F1EFE9;
  --card:#FFFFFF;
  --text:#1A1A17;
  --muted:#6B6E68;
  --invert:#F2F0EA;
  --line:#E4E1D9;
  --radius-card:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --radius-badge:8px;
  --shadow-hover:0 8px 24px rgba(20,39,34,.10);
  --shadow-nav:0 6px 18px rgba(20,39,34,.06);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --nav-h:72px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
svg{display:block}
::selection{background:rgba(216,98,44,.18)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent);
}
.section{padding:96px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.25;letter-spacing:-.01em;margin-top:14px}
.section-head p{max-width:560px;color:var(--muted);font-size:15px;margin-top:12px}
.text-link{font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:color .28s var(--ease),border-color .28s var(--ease)}
.text-link:hover{color:var(--accent);border-color:var(--accent)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--nav-h);transition:height .3s var(--ease)}
.site-header.is-scrolled .header-inner{height:62px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--brand);white-space:nowrap}
.logo svg{width:30px;height:30px;color:var(--brand)}
.logo:hover svg{color:var(--accent)}
.logo svg{transition:color .28s var(--ease)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;font-size:15px;padding:6px 0;color:var(--text);transition:color .28s var(--ease)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#FAF9F5;border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;min-width:210px;
  transition:border-color .28s var(--ease),background .28s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);background:#fff}
.search-box svg{width:16px;height:16px;color:var(--muted);flex:none}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:#A8ABA1}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .28s var(--ease),background .28s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle svg{width:18px;height:18px;color:var(--brand)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease);
}
.btn .btn-arrow{transition:transform .28s var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep)}
.btn-primary:hover .btn-arrow{transform:translateX(3px)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep)}
.btn-accent:hover .btn-arrow{transform:translateX(3px)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:var(--invert)}
.btn-sm{padding:10px 20px;font-size:14px}

/* ===== 面包屑 ===== */
.breadcrumb{padding:26px 0 0;font-size:13px;color:var(--muted);letter-spacing:.02em;line-height:1.8}
.breadcrumb a{transition:color .28s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{margin:0 8px;color:#C7C4BB}
.breadcrumb .current{color:var(--text)}

/* ===== 文章主体 ===== */
.article-head{max-width:780px;margin:0 auto;padding:26px 0 30px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-badge);background:rgba(216,98,44,.10);
  color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-title{
  margin-top:18px;
  font-size:clamp(30px,4.4vw,48px);
  font-weight:700;line-height:1.18;letter-spacing:-.02em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:20px;font-size:13.5px;color:var(--muted);letter-spacing:.02em;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C7C4BB}
.article-meta .meta-strong{color:var(--brand);font-weight:600}

.article-content{
  max-width:780px;margin:0 auto;padding:38px 0 10px;
  font-size:17px;line-height:1.9;color:#22231F;
}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.4em}
.article-content h1,
.article-content h2{
  font-size:clamp(21px,2.6vw,29px);font-weight:600;line-height:1.35;
  margin:2em 0 .9em;padding-left:16px;border-left:3px solid var(--brand);
}
.article-content h3{font-size:20px;font-weight:600;line-height:1.4;margin:1.8em 0 .7em}
.article-content h4{font-size:17px;font-weight:600;margin:1.6em 0 .6em}
.article-content ul,
.article-content ol{margin:0 0 1.5em;padding-left:1.35em}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin:.45em 0}
.article-content li::marker{color:var(--accent)}
.article-content blockquote{
  margin:1.7em 0;padding:18px 24px;background:#fff;
  border-left:4px solid var(--accent);border-radius:0 12px 12px 0;
  color:#3B3E38;font-size:16.5px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--radius-card);margin:1.7em 0;width:100%}
.article-content figure{margin:1.8em 0}
.article-content figcaption{margin-top:10px;font-size:13.5px;color:var(--muted);text-align:center}
.article-content a{color:var(--accent);border-bottom:1px solid rgba(216,98,44,.4);transition:border-color .28s var(--ease)}
.article-content a:hover{border-color:var(--accent)}
.article-content code{
  font-family:var(--font-num);font-size:.9em;background:#EDEAE3;
  padding:2px 6px;border-radius:6px;
}
.article-content pre{
  background:var(--brand-deep);color:var(--invert);
  padding:20px 22px;border-radius:var(--radius-card);overflow-x:auto;
  font-family:var(--font-num);font-size:14px;line-height:1.7;margin:1.7em 0;
}
.article-content pre code{background:transparent;color:inherit;padding:0}
.article-content table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;display:table}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-content thead th{background:var(--surface);font-weight:600;color:var(--brand)}
.article-content tbody tr:nth-child(even){background:#FCFBF8}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.empty-state{
  max-width:780px;margin:0 auto;padding:52px 32px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
}
.empty-state h2{font-size:22px;font-weight:600;margin-bottom:12px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

/* ===== 标签与返回 ===== */
.article-tags{
  max-width:780px;margin:34px auto 0;padding:26px 0 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.article-tags .tag-label{font-size:13px;color:var(--muted);letter-spacing:.06em;margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-badge);background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
  transition:border-color .28s var(--ease),color .28s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.article-footnav{
  max-width:780px;margin:0 auto;padding:26px 0 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
}
.article-footnav a{font-size:14.5px;font-weight:600;color:var(--brand);transition:color .28s var(--ease)}
.article-footnav a:hover{color:var(--accent)}

/* ===== 卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45;margin:12px 0 8px}
.card-body p{
  font-size:14.5px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--muted);letter-spacing:.02em;
}

/* ===== CTA 条 ===== */
.cta-band{
  margin:76px 0 0;padding:52px 48px;border-radius:20px;
  background:var(--brand);color:var(--invert);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px solid rgba(242,240,234,.18);border-radius:50%;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:600;line-height:1.3;color:#fff}
.cta-band p{margin-top:14px;max-width:620px;font-size:15px;line-height:1.8;color:rgba(242,240,234,.78)}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-deep);color:var(--invert);margin-top:0;padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff}
.footer-brand svg{width:30px;height:30px;color:var(--accent)}
.site-footer p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(242,240,234,.68);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-col ul li{font-size:14.5px;color:rgba(242,240,234,.68);margin-bottom:11px;line-height:1.7}
.footer-col a{transition:color .28s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(242,240,234,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(242,240,234,.55);letter-spacing:.02em;
}

/* ===== 滚动进入 ===== */
.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){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:6px 24px 20px;box-shadow:0 14px 26px rgba(20,39,34,.08);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav-links a::after{display:none}
  .search-box{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{padding:42px 34px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .header-inner{gap:14px}
  .logo{font-size:17px}
  .logo svg{width:26px;height:26px}
  .article-content{font-size:16px;line-height:1.85}
  .article-head{padding:22px 0 26px}
  .breadcrumb{padding-top:20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 26px;gap:24px;margin-top:56px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:56px}
  .section-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-meta{gap:8px 14px;font-size:13px}
  .article-meta .dot{display:none}
  .btn{padding:12px 20px;font-size:14px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#1E3A34;
  --ink-deep:#142722;
  --accent:#D8622C;
  --accent-deep:#B44E1F;
  --paper:#F6F4EF;
  --white:#FFFFFF;
  --text:#1A1A17;
  --muted:#6B6E68;
  --line:#E4E1D9;
  --on-dark:#F2F0EA;
  --r-card:14px;
  --r-btn:999px;
  --r-input:10px;
  --r-badge:8px;
  --shadow-hover:0 8px 24px rgba(20,39,34,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-family:var(--font-sans);letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
input,textarea,select{margin:0;font-family:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}
.section{padding:96px 0}
.section-tight{padding:72px 0}

.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  font-weight:600;
  color:var(--accent);
  text-transform:uppercase;
}
.eyebrow-light{color:#E7A57F}
.section-head{margin-bottom:44px;max-width:820px}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:600;
  line-height:1.25;
  margin:12px 0 14px;
}
.section-head p{color:var(--muted);font-size:16px;max-width:680px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,39,34,.07)}
.header-inner{
  display:flex;
  align-items:center;
  gap:34px;
  height:74px;
  transition:height .3s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand svg{width:26px;height:26px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}

.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  padding:6px 0;
  font-size:15px;
  color:#3E423C;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--ink);
  transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.is-active::after{width:100%}
.nav-links a.is-active{color:var(--ink);font-weight:600}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:9px;
  height:40px;padding:0 16px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  min-width:210px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);width:100%;height:auto;
  box-shadow:none;
}
.search-box input::placeholder{color:#A2A59E}
.search-box:focus-within{border-color:var(--ink);background:var(--white)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-deep);color:#fff;box-shadow:0 6px 18px rgba(20,39,34,.18)}
.btn-primary .arrow{transition:transform .28s var(--ease)}
.btn-primary:hover .arrow{transform:translateX(3px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:9px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--ink);
  cursor:pointer;
}
.nav-toggle i{font-size:16px}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--white);
  padding:18px 0 24px;
}
.mobile-drawer.is-open{display:block}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.drawer-nav a{
  padding:12px 4px;
  font-size:16px;
  color:#3E423C;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--ink);font-weight:600}
.drawer-search{width:100%;min-width:0;margin-bottom:14px}
.drawer-cta{width:100%}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:var(--on-dark);
  padding:72px 0 76px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.5;
}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(20,39,34,.94) 0%,rgba(20,39,34,.72) 55%,rgba(20,39,34,.55) 100%);
}
.page-hero-inner{position:relative;z-index:2;max-width:860px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(242,240,234,.7);margin-bottom:26px}
.crumb a{color:rgba(242,240,234,.85)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.page-hero h1{
  color:#fff;
  font-size:clamp(32px,4.4vw,54px);
  font-weight:700;
  line-height:1.16;
  letter-spacing:-.02em;
  margin:16px 0 18px;
  max-width:20ch;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.85;
  color:rgba(242,240,234,.88);
  max-width:60ch;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  display:inline-flex;align-items:center;height:26px;
  padding:0 12px;
  border:1px solid rgba(242,240,234,.32);
  border-radius:var(--r-badge);
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(242,240,234,.92);
}

/* ---------- layout split ---------- */
.layout-split{display:flex;flex-wrap:wrap;margin:0 -16px}
.filter-col{flex:0 0 25%;max-width:25%;padding:0 16px}
.list-col{flex:0 0 75%;max-width:75%;padding:0 16px}

.filter-panel{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 20px;
  position:sticky;
  top:104px;
}
.filter-panel h3{font-size:15px;letter-spacing:.06em;margin-bottom:14px}
.filter-label{
  font-size:12px;letter-spacing:.18em;color:var(--muted);
  font-weight:600;margin-bottom:16px;display:block;
}
.filter-list{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.filter-list a{
  display:block;
  padding:10px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.filter-list a:hover{background:var(--paper);color:var(--ink)}
.filter-list a.is-current{
  background:rgba(30,58,52,.07);
  color:var(--ink);
  font-weight:600;
  border-left-color:var(--accent);
}
.filter-note{
  border-top:1px solid var(--line);
  padding-top:16px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.75;
}

/* ---------- cards ---------- */
.card-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.card-grid>.cell{flex:0 0 100%;max-width:100%;padding:0 12px;margin-bottom:24px}
.post-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink)}
.post-card-link{display:block;height:100%}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEAE3}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px 22px 24px}
.post-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  margin:12px 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6C3B9}

.badge{
  display:inline-flex;align-items:center;height:24px;
  padding:0 10px;
  border-radius:var(--r-badge);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  background:rgba(30,58,52,.08);
  color:var(--ink);
}
.badge-accent{background:rgba(216,98,44,.12);color:var(--accent-deep)}

.load-more{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding-top:8px}
.load-note{font-size:13.5px;color:var(--muted);margin:0}

/* ---------- steps ---------- */
.steps-wrap{border-top:1px solid var(--line);padding-top:40px;display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.step-item .step-no{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.2em;
  color:var(--accent);
  font-weight:600;
  display:block;
  margin-bottom:14px;
}
.step-item h3{font-size:19px;margin-bottom:10px;padding-top:14px;border-top:2px solid var(--ink);display:inline-block;width:100%}
.step-item p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0}

/* ---------- stats ---------- */
.stat-section{background:var(--ink);color:var(--on-dark);padding:88px 0}
.stat-section .eyebrow{color:#E7A57F}
.stat-section h2{color:#fff;font-size:clamp(26px,3vw,36px);font-weight:600;margin:12px 0 16px}
.stat-section .section-head p{color:rgba(242,240,234,.76)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid rgba(242,240,234,.18);padding-top:36px}
.stat-num{
  font-family:var(--font-num);
  font-size:clamp(32px,4vw,50px);
  font-weight:600;
  letter-spacing:-.02em;
  color:#fff;
  line-height:1.1;
}
.stat-num .unit{font-size:.5em;margin-left:4px;color:#E7A57F}
.stat-label{display:block;margin-top:12px;font-size:13px;letter-spacing:.14em;color:rgba(242,240,234,.7)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:14px;
  padding:22px 0;
  background:none;border:0;
  text-align:left;
  font-size:17px;font-weight:600;line-height:1.5;
  color:var(--text);
  cursor:pointer;
}
.faq-q .mark{
  flex:0 0 auto;
  width:24px;height:24px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(30,58,52,.08);
  color:var(--ink);
  font-size:12px;font-weight:700;
  font-family:var(--font-num);
}
.faq-q .plus{margin-left:auto;color:var(--muted);transition:transform .26s var(--ease),color .26s var(--ease);font-size:14px}
.faq-item.is-open .plus{transform:rotate(45deg);color:var(--accent)}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a-inner{padding:0 0 24px 38px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:74ch}

/* ---------- cta / form ---------- */
.cta-panel{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:48px 44px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:44px;
  align-items:start;
}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;margin:12px 0 14px;line-height:1.3}
.cta-copy p{color:var(--muted);font-size:15.5px;margin-bottom:22px}
.cta-points{display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:#3E423C}
.cta-points i{color:var(--accent);font-size:12px;margin-top:8px}

.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:13.5px;font-weight:600;color:var(--ink);letter-spacing:.02em}
.form-field input,.form-field textarea{
  width:100%;
  height:auto;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.form-field textarea{min-height:112px;resize:vertical;line-height:1.7}
.form-field input::placeholder,.form-field textarea::placeholder{color:#A2A59E}
.form-field input:focus,.form-field textarea:focus{
  outline:none;
  background:var(--white);
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(30,58,52,.10);
}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-hint{font-size:13px;color:var(--muted);margin:0}
.form-msg{grid-column:1 / -1;font-size:13.5px;color:var(--accent-deep);display:none;margin:0}
.form-msg.is-show{display:block}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-deep);
  color:var(--on-dark);
  padding:76px 0 28px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand svg{width:26px;height:26px;color:#E7A57F;flex:0 0 auto}
.site-footer p{color:rgba(242,240,234,.72);font-size:14.5px;line-height:1.85;max-width:36ch}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(242,240,234,.62);font-weight:600;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14.5px;color:rgba(242,240,234,.8)}
.footer-col a{color:rgba(242,240,234,.8)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(242,240,234,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;
  color:rgba(242,240,234,.6);
}

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

/* ---------- responsive ---------- */
@media screen and (max-width:1279px){
  .container{padding:0 28px}
  .nav-links{gap:22px}
  .search-box{min-width:170px}
}

@media screen and (max-width:1023px){
  .nav-links,.header-actions .search-box,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .page-hero{padding:56px 0 60px}
  .section{padding:72px 0}
  .stat-section{padding:68px 0}
  .filter-col,.list-col{flex:0 0 100%;max-width:100%}
  .filter-col{margin-bottom:26px}
  .filter-panel{position:static;padding:18px 16px}
  .filter-list{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
    margin-bottom:16px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .filter-list::-webkit-scrollbar{display:none}
  .filter-list a{
    white-space:nowrap;
    border-left:0;
    border-bottom:2px solid transparent;
    background:var(--paper);
    padding:8px 14px;
    border-radius:var(--r-btn);
    font-size:14px;
  }
  .filter-list a.is-current{border-bottom-color:transparent;border-left-color:transparent}
  .steps-wrap{grid-template-columns:repeat(2,1fr);gap:28px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media screen and (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .header-inner{height:64px;gap:16px}
  .brand{font-size:16.5px}
  .page-hero{padding:44px 0 48px}
  .page-hero h1{font-size:clamp(28px,7.6vw,34px);max-width:none}
  .page-hero .lead{font-size:15.5px}
  .crumb{font-size:12.5px;margin-bottom:20px}
  .card-grid{margin:0}
  .card-grid>.cell{padding:0;margin-bottom:20px}
  .steps-wrap{grid-template-columns:1fr;gap:26px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:26px}
  .stat-section{padding:56px 0}
  .contact-form{grid-template-columns:1fr}
  .faq-q{font-size:16px;gap:10px}
  .faq-a-inner{padding-left:34px}
  .cta-panel{padding:28px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding:56px 0 24px}
  .footer-bottom{margin-top:36px;flex-direction:column;gap:8px}
}

@media screen and (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .post-body{padding:18px 18px 20px}
  .hero-tags span{font-size:12px}
  .btn{width:100%}
  .load-more .btn{width:100%}
  .form-actions{flex-direction:column;align-items:stretch}
}

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

/* roulang page: category2 */
:root{
  --ink:#1E3A34;
  --ink-deep:#142722;
  --accent:#D8622C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --text:#1A1A17;
  --muted:#6B6E68;
  --line:#E4E1D9;
  --inv:#F2F0EA;
  --r-card:14px;
  --r-btn:999px;
  --r-input:10px;
  --shadow-hover:0 8px 24px rgba(20,39,34,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-y:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,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;padding:0;
  font-family:var(--font-cn);
  font-size:16.5px;line-height:1.8;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--ink)}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:1.25;color:var(--ink);letter-spacing:-0.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--ink);padding:10px 18px;z-index:99;border-radius:0 0 10px 0}
.skip-link:focus{left:0}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary::after{content:"→";font-size:14px;transition:transform .28s var(--ease)}
.btn-primary:hover{background:var(--ink-deep);color:#fff}
.btn-primary:hover::after{transform:translateX(2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-light{background:transparent;border-color:rgba(242,240,234,.45);color:var(--inv)}
.btn-ghost-light:hover{background:var(--inv);color:var(--ink);border-color:var(--inv)}
.btn-sm{padding:10px 20px;font-size:14px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:8px;background:#EDF1EE;color:var(--ink);
  font-size:12.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);margin:0 0 14px;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(20,39,34,.07)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  padding-top:18px;padding-bottom:18px;
  transition:padding .3s var(--ease);
}
.site-header.is-scrolled .header-inner{padding-top:12px;padding-bottom:12px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap}
.brand svg{width:26px;height:26px;color:var(--ink);flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;display:block;padding:6px 0;
  font-size:15px;color:var(--muted);transition:color .25s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;width:230px;
  padding:9px 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--bg);transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--ink);background:#fff}
.nav-search svg{width:15px;height:15px;color:var(--muted);flex:0 0 auto}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:#9AA09A}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  align-items:center;justify-content:center;background:#fff;color:var(--ink);
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:currentColor}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 32px 24px}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:13px 0;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.mobile-nav a.is-active{color:var(--accent);font-weight:600}
.mobile-nav .nav-search{width:100%;margin-top:16px;background:var(--bg)}
.mobile-nav .btn{width:100%;justify-content:center;margin-top:14px}

/* ============ 顶部标题区 ============ */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:70px 0 44px}
.page-head h1{
  font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.15;
  letter-spacing:-0.02em;color:var(--ink);max-width:940px;
}
.page-head .lead{margin-top:20px;max-width:760px;font-size:16.5px;color:var(--muted)}
.page-head .meta-line{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13.5px;color:var(--muted);letter-spacing:.02em;
}
.page-head .meta-line b{color:var(--ink);font-weight:600}
.tabs{display:flex;gap:10px;margin-top:30px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
.tabs::-webkit-scrollbar{height:4px}
.tabs::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.tab{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  font-size:14px;line-height:1;transition:all .25s var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink)}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ============ 指标条 ============ */
.metrics{background:var(--ink);color:var(--inv);padding:44px 0 48px}
.metrics .row{max-width:none;margin:0}
.metric{padding-left:26px;border-left:1px solid rgba(242,240,234,.18)}
.metrics .column:first-child .metric{border-left:0;padding-left:0}
.metric-num{
  display:block;font-family:var(--font-num);font-size:clamp(26px,3.2vw,38px);
  font-weight:700;line-height:1.1;letter-spacing:-0.02em;color:#fff;
}
.metric-num small{font-size:.5em;font-weight:600;margin-left:2px;letter-spacing:0}
.metric-label{display:block;margin-top:8px;font-size:13px;letter-spacing:.08em;color:rgba(242,240,234,.68)}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0}
.section-head{max-width:740px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);color:var(--ink)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* ============ 紧凑行式列表 ============ */
.list-section{background:var(--bg)}
.compact-list{border-top:1px solid var(--line);background:#fff;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line)}
.compact-list>li+li .row-item{border-top:1px solid var(--line)}
.row-item{
  display:grid;grid-template-columns:52px minmax(0,1fr) auto 104px 20px;
  align-items:center;gap:20px;padding:20px 22px;background:#fff;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.row-item:hover{transform:translateX(2px);background:#FAF8F3}
.row-item:hover .row-arrow{transform:translateX(3px)}
.row-num{font-family:var(--font-num);font-size:14px;color:#9AA09A;letter-spacing:.06em}
.row-main{min-width:0}
.row-title{display:block;font-size:17px;font-weight:600;color:var(--ink);line-height:1.45}
.row-desc{
  display:block;margin-top:4px;font-size:14px;color:var(--muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.row-time{font-family:var(--font-num);font-size:13.5px;color:var(--muted);letter-spacing:.02em}
.row-arrow{color:var(--accent);font-size:16px;line-height:1;transition:transform .25s var(--ease)}
.list-more{margin-top:34px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.list-more .note{font-size:13.5px;color:var(--muted)}

/* ============ 图文对照区 ============ */
.split-section{background:#fff}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:center}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
}
.split-body h2{font-size:clamp(24px,3vw,32px)}
.split-body>p{margin-top:16px;color:var(--muted)}
.check-list{margin-top:26px}
.check-list li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15.5px;color:var(--text)}
.check-list li::before{
  content:"";position:absolute;left:0;top:12px;width:12px;height:2px;background:var(--accent);
}
.split-body .btn{margin-top:30px}

/* ============ 流程时间线 ============ */
.process-section{background:var(--bg)}
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}
.timeline li{border-top:2px solid var(--ink);padding-top:22px}
.timeline .step{
  font-family:var(--font-num);font-size:13px;letter-spacing:.1em;color:var(--accent);font-weight:700;
}
.timeline h3{margin-top:10px;font-size:19px}
.timeline p{margin-top:10px;font-size:14.8px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-section{background:#fff}
.accordion.faq-list{background:transparent;border:0;border-top:1px solid var(--line);margin:0}
.faq-item{border-bottom:1px solid var(--line);background:#fff}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:24px 18px;text-align:left;font-size:17px;font-weight:600;
  color:var(--ink);line-height:1.5;transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--ink-deep)}
.faq-mark{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#EDF1EE;color:var(--accent);font-size:13px;font-weight:700;font-family:var(--font-num);
}
.faq-icon{position:relative;margin-left:auto;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.6px}
.faq-icon::after{left:7px;top:0;width:1.6px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-q{color:var(--ink-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 48px 26px 58px;font-size:15.5px;color:var(--muted)}

/* ============ CTA ============ */
.cta-band{background:var(--ink);color:var(--inv);padding:74px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{margin-top:12px;max-width:560px;color:rgba(242,240,234,.76);font-size:15.5px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--accent)}
.cta-band .btn-primary:hover{background:#C4551F}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink)}
.footer-brand svg{width:26px;height:26px;color:var(--ink);flex:0 0 auto}
.site-footer p{margin-top:16px;max-width:330px;font-size:14.5px;color:var(--muted)}
.footer-col h4{font-size:14.5px;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px;font-size:14.5px;color:var(--muted)}
.footer-col a{color:var(--muted);transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 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){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
  .nav-search{width:190px}
}
@media (max-width:1023px){
  :root{--section-y:72px}
  .nav-links{display:none}
  .header-actions .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .split{grid-template-columns:1fr;gap:38px}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer p{max-width:none}
  .metric{padding-left:20px}
}
@media (max-width:767px){
  :root{--section-y:56px}
  body{font-size:16px}
  .container{padding:0 20px}
  .header-inner{gap:14px}
  .brand{font-size:16px}
  .header-actions .btn-primary{display:none}
  .mobile-nav{padding:10px 20px 22px}
  .page-head{padding:52px 0 34px}
  .page-head h1{font-size:clamp(27px,7.6vw,34px)}
  .page-head .lead{font-size:15.5px}
  .metrics{padding:34px 0 38px}
  .metric{padding-left:0;border-left:0;margin-bottom:22px}
  .metrics .column:first-child .metric{margin-top:0}
  .metric-num{font-size:26px}
  .compact-list{border-radius:12px}
  .row-item{
    grid-template-columns:32px minmax(0,1fr) 18px;
    grid-template-rows:auto auto;gap:8px 12px;padding:18px 16px;
  }
  .row-num{grid-column:1;grid-row:1 / span 2;padding-top:2px}
  .row-main{grid-column:2;grid-row:1}
  .row-title{font-size:16px}
  .row-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .badge{grid-column:2;grid-row:2;justify-self:start}
  .row-time{display:none}
  .row-arrow{grid-column:3;grid-row:1 / span 2;align-self:center}
  .timeline{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-q{font-size:16px;padding:20px 6px;gap:12px}
  .faq-a p{padding:0 20px 22px 42px;font-size:15px}
  .cta-band{padding:56px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;justify-content:center}
}
@media (max-width:520px){
  .tabs{gap:8px}
  .tab{padding:8px 14px;font-size:13.5px}
  .footer-bottom{flex-direction:column;gap:6px}
}