/* roulang page: index */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --nav-w:232px;
  --radius-btn:2px;
  --radius-card:8px;
  --shadow-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --font-serif:"Noto Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-100);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:-0.01em;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
address{font-style:normal}
::selection{background:rgba(196,69,46,.18);color:var(--ink-900)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:2px;
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.divider{height:1px;background:var(--line);width:100%}
.spark{width:64px;height:2px;background:var(--spectrum);border-radius:2px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 布局骨架 */
.layout{min-height:100vh;position:relative}
@media(min-width:1024px){.layout{padding-left:var(--nav-w)}}

/* 左侧竖向导航 */
.sidenav{display:none}
@media(min-width:1024px){
  .sidenav{
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
    background:var(--ink-900);color:var(--paper-100);
    padding:36px 0 24px;
    border-right:1px solid rgba(250,247,241,.12);
    z-index:70;
  }
}
.brand{padding:0 24px}
.brand-name{
  font-family:var(--font-serif);font-size:22px;font-weight:600;
  letter-spacing:.06em;color:var(--paper-100);line-height:1.4;
}
.brand-sub{margin-top:6px;font-size:12px;letter-spacing:.12em;color:rgba(250,247,241,.55)}
.brand-spark{width:32px;height:2px;background:var(--spectrum);margin:18px 24px 0;border-radius:2px}
.nav-list{margin-top:34px;display:flex;flex-direction:column}
.nav-link{
  position:relative;display:flex;align-items:center;
  height:48px;padding:0 24px;font-size:15px;
  color:rgba(250,247,241,.72);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:22px;
  background:var(--spectrum);transform:translateY(-50%) scaleY(0);
  transform-origin:center;transition:transform .18s ease;
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::before{transform:translateY(-50%) scaleY(1)}
.nav-link.active{color:var(--accent);background:rgba(196,69,46,.10)}
.nav-link.active::before{background:var(--accent);transform:translateY(-50%) scaleY(1)}
.sidenav-foot{margin-top:auto;padding:24px 24px 0;border-top:1px solid rgba(250,247,241,.10)}
.sidenav-foot p{font-size:12px;line-height:1.9;color:rgba(250,247,241,.45)}

/* 移动端顶栏 */
.topbar{
  position:sticky;top:0;z-index:80;
  display:flex;align-items:center;justify-content:space-between;
  height:64px;padding:0 20px;
  background:var(--paper-100);border-bottom:1px solid var(--line);
}
@media(min-width:1024px){.topbar{display:none}}
.topbar-brand{display:flex;flex-direction:column;line-height:1.25}
.topbar-brand .brand-name{font-size:18px;color:var(--ink-900);letter-spacing:.04em}
.topbar-brand .brand-sub{margin-top:2px;font-size:10px;letter-spacing:.14em;color:var(--ink-500)}
.burger{
  width:44px;height:44px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:2px;background:var(--paper-100);
  transition:border-color .18s ease,background-color .18s ease;
}
.burger:hover{border-color:var(--ink-900);background:var(--paper-200)}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink-900);transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* 抽屉菜单 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--ink-900);color:var(--paper-100);
  padding:80px 28px 40px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-close{
  position:absolute;top:16px;right:16px;width:44px;height:44px;
  border:1px solid rgba(250,247,241,.24);border-radius:2px;
  color:var(--paper-100);display:flex;align-items:center;justify-content:center;
  transition:background-color .18s ease,border-color .18s ease;
}
.drawer-close:hover{background:rgba(250,247,241,.08);border-color:rgba(250,247,241,.5)}
.drawer .brand-name{color:var(--paper-100)}
.drawer .brand-sub{color:rgba(250,247,241,.55)}
.drawer-nav{margin-top:32px}
.drawer .nav-link{
  height:auto;padding:16px 0;font-size:20px;
  border-bottom:1px solid rgba(250,247,241,.12);
}
.drawer .nav-link::before{display:none}
.drawer .nav-link.active{background:transparent;color:var(--accent)}

/* 倒计时条 */
.countbar{
  position:sticky;top:0;z-index:60;
  background:var(--ink-900);color:var(--paper-100);
  position:relative;
}
@media(min-width:1024px){.countbar{position:sticky;top:0}}
@media(max-width:1023px){.countbar{position:relative}}
.countbar::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--spectrum);
}
.countbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:52px;padding:0 40px;flex-wrap:wrap;
}
.count-status{
  display:flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.12em;color:rgba(250,247,241,.8);
}
.count-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:none}
.count-nums{display:flex;align-items:center}
.count-cell{
  display:flex;align-items:baseline;gap:4px;padding:0 14px;
  border-left:1px solid rgba(250,247,241,.18);
}
.count-cell:first-child{border-left:0}
.count-num{
  font-family:var(--font-serif);font-size:clamp(20px,1.9vw,26px);font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.count-unit{font-size:12px;color:rgba(250,247,241,.6)}
.count-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:32px;padding:0 16px;border-radius:2px;
  border:1px solid rgba(250,247,241,.32);
  font-size:12.5px;letter-spacing:.08em;color:var(--paper-100);
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.count-btn:hover{background:var(--accent);border-color:var(--accent);color:var(--paper-100)}

/* Hero */
.hero{
  padding:72px 0 88px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 82% -10%,rgba(216,155,60,.10),transparent 62%),
    var(--paper-100);
}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;
  min-height:clamp(480px,68vh,660px);
}
.hero-content{animation:riseIn .6s ease both}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  font-size:12px;letter-spacing:.16em;color:var(--ink-500);
  background:var(--paper-100);
}
.pill i{font-size:11px;color:var(--accent)}
.hero h1{
  margin-top:24px;
  font-size:clamp(42px,5.6vw,82px);
  line-height:1.06;
  letter-spacing:-0.01em;
}
.hero h1 .accent-text{color:var(--accent)}
.hero .spark{margin-top:20px}
.hero-lead{
  margin-top:24px;max-width:34ch;
  font-size:18px;line-height:1.8;color:var(--ink-500);
}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;margin-top:40px;
  border-top:1px solid var(--line);padding-top:20px;
}
.hero-meta-item{padding-right:28px;margin-right:28px;border-right:1px solid var(--line)}
.hero-meta-item:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-meta-num{
  font-family:var(--font-serif);font-size:22px;font-weight:600;
  font-variant-numeric:tabular-nums;color:var(--ink-900);
}
.hero-meta-label{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--ink-500);margin-top:2px}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--paper-200);
  aspect-ratio:4/5;
  animation:riseIn .6s .08s ease both;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-badge{
  position:absolute;right:12px;bottom:12px;
  background:var(--paper-100);color:var(--ink-900);
  padding:8px 12px;border-radius:2px;
  font-size:12px;letter-spacing:.08em;
  border:1px solid rgba(20,17,14,.08);
}
@keyframes riseIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* 板块标题 */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.sec-title{font-size:clamp(24px,2.2vw,32px)}
.sec-title + .spark{margin-top:16px}
.sec-lead{margin-top:14px;max-width:58ch;font-size:15px;line-height:1.8;color:var(--ink-500)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-700);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s ease;
  position:relative;
}
.link-more::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--spectrum);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.link-more:hover{color:var(--accent)}
.link-more:hover::after{transform:scaleX(1)}
.link-more i{font-size:12px;transition:transform .2s ease}
.link-more:hover i{transform:translateX(3px)}

/* 卖点 */
.points{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.point{
  display:grid;grid-template-columns:88px 1fr;gap:20px;
  padding:28px 0;border-top:1px solid var(--line);
}
.point:last-child{border-bottom:1px solid var(--line)}
.point-num{
  font-family:var(--font-serif);font-size:48px;font-weight:600;line-height:1;
  color:var(--paper-300);transition:color .2s ease;
  font-variant-numeric:tabular-nums;
}
.point:hover .point-num{color:var(--accent)}
.point-title{font-size:20px;font-weight:600;font-family:var(--font-sans);letter-spacing:.02em}
.point-desc{margin-top:8px;font-size:15px;line-height:1.8;color:var(--ink-500);max-width:40ch}

/* 亮点图墙 */
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--paper-200);aspect-ratio:3/2;
  border:1px solid var(--line);
}
.tile.wide{grid-column:span 2}
.tile img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .22s ease-out;
}
.tile:hover img,.tile:focus-within img{transform:scale(1.03)}
.tile-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;
  background:linear-gradient(to top,rgba(250,247,241,.98),rgba(250,247,241,.94) 70%,rgba(250,247,241,.7));
  transform:translateY(58%);
  transition:transform .3s ease;
}
.tile:hover .tile-cap,.tile:focus-within .tile-cap{transform:translateY(0)}
.tile-cap h3{font-size:15px;font-family:var(--font-sans);font-weight:600;letter-spacing:.02em;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tile-cap span{display:block;margin-top:2px;font-size:12px;letter-spacing:.1em;color:var(--celadon)}
.wall-foot{display:flex;justify-content:center;margin-top:40px}

/* 数据带 */
.stats{background:var(--ink-900);color:var(--paper-100);padding:72px 0}
.stats-lead{
  max-width:60ch;font-family:var(--font-serif);
  font-size:clamp(19px,1.7vw,23px);line-height:1.65;
  color:rgba(250,247,241,.86);margin-bottom:48px;
}
.stats-lead em{font-style:normal;color:var(--amber)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 24px;border-left:1px solid rgba(250,247,241,.14)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{
  font-family:var(--font-serif);font-size:clamp(40px,4.4vw,64px);
  font-weight:600;line-height:1;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:14px;font-family:var(--font-sans);font-weight:400;color:rgba(250,247,241,.6);margin-left:6px}
.stat-label{margin-top:10px;font-size:12px;letter-spacing:.12em;color:rgba(250,247,241,.6)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:500;letter-spacing:.04em;
  border:1px solid transparent;text-align:center;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:var(--paper-100)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 12px 26px -18px rgba(196,69,46,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-100)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-loading{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading .btn-spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(250,247,241,.4);border-top-color:var(--paper-100);
  animation:spin .8s linear infinite;
}
.btn-spinner{display:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* 报名 CTA */
.cta-band{background:var(--ink-900);color:var(--paper-100);padding:80px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.cta-title{font-size:clamp(26px,2.4vw,36px);line-height:1.2;color:var(--paper-100)}
.cta-lead{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(250,247,241,.66);max-width:36ch}
.cta-points{margin-top:32px}
.cta-point{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-top:1px solid rgba(250,247,241,.12);
  font-size:14.5px;line-height:1.7;color:rgba(250,247,241,.82);
}
.cta-point:last-child{border-bottom:1px solid rgba(250,247,241,.12)}
.cta-point::before{
  content:"";flex:0 0 24px;width:24px;height:2px;background:var(--spectrum);
  margin-top:12px;border-radius:2px;
}
.form{display:grid;gap:26px}
.field{position:relative}
.field label{
  display:block;font-size:13px;letter-spacing:.1em;
  color:rgba(250,247,241,.6);margin-bottom:6px;
}
.field input,.field select{
  width:100%;height:44px;padding:0 2px;
  background:transparent;color:var(--paper-100);
  border:0;border-bottom:1px solid rgba(250,247,241,.28);
  font-size:16px;font-family:var(--font-sans);
  transition:border-color .18s ease;
  border-radius:0;
}
.field select{appearance:none;background-image:none;color:var(--paper-100)}
.field select option{color:#14110E;background:#FAF7F1}
.field input::placeholder,.field select::placeholder{color:rgba(250,247,241,.32)}
.field input:focus,.field select:focus{border-bottom-color:var(--accent);outline:none;box-shadow:inset 0 -2px 0 0 rgba(196,69,46,.45)}
.field input:focus-visible,.field select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.field.invalid input,.field.invalid select{border-bottom-color:#E06A50}
.field-error{display:none;margin-top:6px;font-size:12px;color:#E06A50}
.field.invalid .field-error{display:block}
.form-note{font-size:12px;line-height:1.8;color:rgba(250,247,241,.45)}
.form-msg{
  min-height:22px;font-size:13.5px;line-height:1.7;color:var(--amber);
}
.form-msg.is-success{color:#8FBFAE}
.form-msg.is-error{color:#E06A50}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:60px;padding:16px 0;
  font-size:17px;font-weight:500;color:var(--ink-900);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-500);
  transition:transform .2s ease,background-color .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:1.5px}
.faq-icon::after{left:9px;top:0;width:1.5px;height:20px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-item[open] .faq-icon::before{background:var(--accent)}
.faq-item[open] .faq-q{color:var(--accent)}
.faq-a{
  max-width:72ch;padding:0 0 20px;
  font-size:15.5px;line-height:1.9;color:var(--ink-500);
  animation:fadeIn .24s ease both;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* 最新信息 */
.news-list{border-top:1px solid var(--line)}
.news-row{border-bottom:1px solid var(--line)}
.news-link{
  position:relative;display:grid;
  grid-template-columns:130px 1fr 40px;gap:24px;align-items:center;
  padding:20px 16px;
  transition:background-color .2s ease;
}
.news-link::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--accent);transform:scaleY(0);transform-origin:top;
  transition:transform .2s ease;
}
.news-link:hover{background:var(--paper-200)}
.news-link:hover::before{transform:scaleY(1)}
.news-link:hover .news-title{color:var(--accent)}
.news-link:hover .news-arrow{transform:translateX(4px);color:var(--accent)}
.news-date{
  font-family:var(--font-serif);font-size:18px;font-weight:500;
  font-variant-numeric:tabular-nums;color:var(--ink-700);
}
.news-title{
  font-family:var(--font-sans);font-size:18px;font-weight:600;letter-spacing:.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s ease;
}
.news-desc{
  margin-top:4px;font-size:14.5px;line-height:1.75;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-tag{
  display:inline-block;margin-top:8px;padding:2px 10px;
  font-size:11px;letter-spacing:.12em;color:var(--celadon);
  border:1px solid rgba(62,111,99,.35);border-radius:999px;
}
.news-arrow{
  font-size:18px;color:var(--ink-500);justify-self:end;
  transition:transform .2s ease,color .2s ease;
}
.empty{
  border:1px dashed var(--line);background:var(--paper-100);
  border-radius:var(--radius-card);padding:48px 24px;text-align:center;
}
.empty-mark{
  width:32px;height:32px;border:1px solid var(--line);
  margin:0 auto 16px;border-radius:2px;position:relative;
}
.empty-mark::before,.empty-mark::after{
  content:"";position:absolute;background:var(--line);
}
.empty-mark::before{left:8px;right:8px;top:11px;height:1px}
.empty-mark::after{left:8px;right:8px;top:20px;height:1px}
.empty p{font-size:15px;color:var(--ink-500)}
.empty .btn{margin-top:20px}

/* 页脚 */
.footer{background:var(--ink-900);color:var(--paper-100);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .brand-name{color:var(--paper-100);font-size:20px}
.footer-brand .brand-sub{color:rgba(250,247,241,.5);margin-top:8px}
.footer-brand .spark{margin-top:20px}
.footer-title{font-size:13px;letter-spacing:.12em;color:rgba(250,247,241,.45);margin-bottom:14px}
.footer-link{
  display:inline-block;font-size:13px;line-height:36px;
  color:rgba(250,247,241,.72);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link:hover{color:#FFFFFF;border-bottom-color:rgba(250,247,241,.6)}
.footer-address p{font-size:12px;line-height:1.95;color:rgba(250,247,241,.6)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(250,247,241,.12);
  padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:rgba(250,247,241,.4);letter-spacing:.02em}

/* 断点：1200 */
@media(max-width:1199px){
  .container{padding:0 32px}
  .hero-grid{gap:40px}
  .point{grid-template-columns:72px 1fr;gap:16px}
  .point-num{font-size:40px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
  .footer-address{grid-column:1 / -1}
}

/* 断点：1024 导航切换 */
@media(max-width:1023px){
  .section{padding:72px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0}
  .hero h1{font-size:clamp(32px,5.2vw,48px)}
  .hero-media{aspect-ratio:16/10;max-width:640px}
  .hero-lead{max-width:44ch}
  .points{gap:0 32px}
  .wall{grid-template-columns:repeat(2,1fr)}
  .tile.wide{grid-column:span 2}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .countbar-inner{padding:0 32px;min-height:56px}
  .news-link{grid-template-columns:110px 1fr 32px;gap:18px;padding:18px 12px}
}

/* 断点：768 */
@media(max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:40px 0 56px}
  .hero h1{font-size:clamp(30px,8vw,38px);line-height:1.16}
  .hero-lead{font-size:16.5px;max-width:100%}
  .hero-actions{gap:12px;flex-wrap:nowrap}
  .hero-actions .btn{flex:1 1 0;padding:0 12px;height:48px}
  .hero-meta{padding-top:16px;gap:0;flex-wrap:wrap}
  .hero-meta-item{padding-right:18px;margin-right:18px;margin-bottom:8px}
  .hero-media{aspect-ratio:16/10}
  .sec-head{margin-bottom:28px}
  .points{grid-template-columns:1fr;gap:0}
  .point{grid-template-columns:40px 1fr;padding:22px 0}
  .point-num{font-size:32px}
  .point-title{font-size:18px}
  .wall{gap:12px}
  .tile.wide{grid-column:span 2}
  .tile-cap{transform:none;background:linear-gradient(to top,rgba(20,17,14,.82),rgba(20,17,14,.35) 60%,transparent)}
  .tile-cap h3{color:var(--paper-100);font-size:14px}
  .tile-cap span{color:rgba(250,247,241,.72)}
  .stats{padding:56px 0}
  .stats-lead{margin-bottom:32px}
  .stat{padding:0 16px}
  .cta-band{padding:56px 0}
  .field input,.field select{height:46px}
  .faq-q{font-size:16px;min-height:56px}
  .news-link{grid-template-columns:1fr;gap:8px;padding:18px 12px}
  .news-date{font-size:16px}
  .news-title{font-size:17px;white-space:normal}
  .news-arrow{display:none}
  .footer{padding:56px 0 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-brand{grid-column:1 / -1}
  .footer-address{grid-column:1 / -1}
  .footer-bottom{margin-top:36px;padding:16px 0 20px}
  .countbar-inner{padding:0 20px;gap:12px;min-height:52px;flex-wrap:nowrap;overflow:hidden}
  .count-status{display:none}
  .count-nums{flex:1 1 auto;overflow:hidden}
  .count-cell{padding:0 8px}
  .count-unit{display:none}
  .count-btn{flex:0 0 auto;padding:0 12px;font-size:12px}
}

/* 断点：480 */
@media(max-width:479px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-actions{flex-wrap:wrap}
  .hero-actions .btn{flex:1 1 100%}
  .wall{grid-template-columns:1fr}
  .tile.wide{grid-column:span 1}
  .stat-grid{grid-template-columns:1fr;row-gap:24px}
  .stat{border-left:0;padding:0}
  .footer-grid{grid-template-columns:1fr}
  .count-num{font-size:18px}
}

@media(min-width:1440px){
  .container{max-width:1300px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category1 */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --nav-w:232px;
  --r-xs:2px;
  --r-md:8px;
  --r-pill:999px;
  --sh-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:128px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper-100);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-locked{overflow:hidden;}
h1,h2,h3,h4,p,figure,ul,ol,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
::selection{background:rgba(196,69,46,.16);}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 40px;
}
.section{padding:var(--sp-9) 0;}
.section--tight{padding:var(--sp-7) 0;}
.section-head{max-width:760px;margin-bottom:var(--sp-7);}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(24px,2.2vw,32px);
  line-height:1.25;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink-900);
  margin-top:var(--sp-3);
}
.section-head p{margin-top:var(--sp-3);font-size:16px;line-height:1.8;color:var(--ink-500);}
.spark{width:64px;height:2px;background:var(--spectrum);border-radius:2px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-500);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 14px;
  background:var(--paper-100);
}

/* ---------- 左侧竖向导航 ---------- */
.site-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  background:var(--ink-900);
  color:var(--paper-100);
  display:flex;
  flex-direction:column;
  padding:var(--sp-6) 0 var(--sp-5);
  border-right:1px solid rgba(250,247,241,.12);
  z-index:80;
}
.nav-brand{
  display:block;
  padding:0 var(--sp-5);
}
.brand-name{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--paper-100);
  line-height:1.3;
}
.brand-sub{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.55);
}
.nav-brand .spark{width:32px;margin-top:18px;}
.nav-list{
  margin-top:var(--sp-7);
  display:flex;
  flex-direction:column;
}
.nav-list li{position:relative;}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:48px;
  padding-left:var(--sp-5);
  font-size:15px;
  color:rgba(250,247,241,.72);
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:22px;
  margin-top:-11px;
  background:var(--spectrum);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff;background:rgba(250,247,241,.05);}
.nav-link:hover::before,.nav-link:focus-visible::before{transform:scaleY(1);}
.nav-link.active{
  color:var(--accent);
  background:rgba(196,69,46,.10);
}
.nav-link.active::before{transform:scaleY(1);background:var(--accent);}
.nav-foot{
  margin-top:auto;
  padding:var(--sp-5) var(--sp-5) 0;
  font-size:12px;
  line-height:1.7;
  color:rgba(250,247,241,.45);
}
.nav-foot p + p{margin-top:4px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:0;background:transparent;
  cursor:pointer;
  padding:0;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;
  height:1.5px;background:var(--ink-900);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:16px;}
.nav-toggle span:nth-child(2){top:22px;}
.nav-toggle span:nth-child(3){top:28px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-mask{display:none;}

/* ---------- 主体偏移 ---------- */
.page{padding-left:var(--nav-w);}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding:var(--sp-5) 0 0;
  font-size:13px;
  color:var(--ink-500);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li::after{content:"/";margin-left:8px;color:var(--line);}
.crumbs li:last-child::after{content:"";}
.crumbs a{transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--accent);}
.crumbs [aria-current="page"]{color:var(--ink-500);}

/* ---------- 半高 Hero ---------- */
.page-hero{
  padding:var(--sp-6) 0 var(--sp-8);
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:var(--sp-7);
  align-items:center;
  min-height:clamp(360px,42vw,480px);
}
.hero-text h1{
  font-family:var(--serif);
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.18;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--ink-900);
  margin:var(--sp-4) 0 0;
}
.hero-text h1 .hl{color:var(--accent);}
.hero-text .spark{margin-top:var(--sp-5);}
.hero-lead{
  margin-top:var(--sp-5);
  font-size:18px;
  line-height:1.8;
  color:var(--ink-500);
  max-width:46ch;
}
.hero-meta{
  margin-top:var(--sp-6);
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-3);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.12em;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--celadon);
  background:var(--paper-100);
}
.chip--accent{color:var(--accent);border-color:rgba(196,69,46,.4);}
.chip--amber{color:#9a6c1e;border-color:rgba(216,155,60,.45);}
.hero-figure{
  margin:0;
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--paper-200);
  aspect-ratio:4/5;
  max-height:400px;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;
  right:12px;bottom:12px;
  background:var(--paper-100);
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  padding:6px 10px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--ink-700);
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat{
  padding:var(--sp-6) var(--sp-5);
  position:relative;
}
.stat + .stat{border-left:1px solid var(--line);}
.stat-num{
  font-family:var(--serif);
  font-size:clamp(40px,4.4vw,64px);
  line-height:1.05;
  font-weight:600;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat-num small{
  font-size:14px;
  font-family:var(--sans);
  font-weight:400;
  margin-left:6px;
  color:var(--ink-500);
  letter-spacing:0;
}
.stat-label{
  margin-top:var(--sp-3);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ink-500);
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:var(--sp-7);
  align-items:center;
}
.split + .split{margin-top:var(--sp-9);}
.split.reverse .split-media{order:2;}
.split-media{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--paper-200);
  aspect-ratio:3/2;
}
.split-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.split-media:hover img{transform:scale(1.03);}
.split-body h3{
  font-family:var(--serif);
  font-size:clamp(22px,2vw,28px);
  line-height:1.3;
  font-weight:600;
  color:var(--ink-900);
  letter-spacing:.01em;
}
.split-body .spark{margin:var(--sp-4) 0;}
.split-body p{font-size:16px;line-height:1.85;color:var(--ink-500);}
.split-body p + p{margin-top:var(--sp-4);}
.split-list{margin-top:var(--sp-5);}
.split-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-700);
}
.split-list li + li{margin-top:var(--sp-3);}
.split-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  background:var(--accent);
  border-radius:1px;
}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  margin-top:var(--sp-7);
  padding-left:var(--sp-6);
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:8px;bottom:8px;
  width:2px;
  background:var(--line);
}
.timeline li{
  position:relative;
  padding:0 0 var(--sp-6) var(--sp-5);
}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";
  position:absolute;
  left:-30px;top:8px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--paper-100);
}
.tl-date{
  font-family:var(--serif);
  font-size:15px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  color:var(--ink-900);
  font-weight:600;
}
.tl-title{
  margin-top:6px;
  font-size:18px;
  font-weight:600;
  color:var(--ink-900);
}
.tl-desc{
  margin-top:6px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-500);
  max-width:64ch;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-xs);
  font-size:14px;
  letter-spacing:.06em;
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),opacity .2s var(--ease);
  position:relative;
}
.btn-primary{background:var(--accent);color:var(--paper-100);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--sh-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-primary:disabled,.btn-primary[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-100);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:var(--paper-100);color:var(--ink-900);}
.btn-light:hover{background:var(--paper-200);transform:translateY(-1px);}
.btn.is-loading{color:transparent;pointer-events:none;}
.btn.is-loading::after{
  content:"";
  position:absolute;
  width:16px;height:16px;
  border:2px solid rgba(250,247,241,.4);
  border-top-color:var(--paper-100);
  border-radius:50%;
  animation:spin 1.2s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
  padding-bottom:4px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.link-more:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);margin-top:var(--sp-6);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  min-height:60px;
  padding:var(--sp-4) 0;
  font-size:17px;
  font-weight:500;
  color:var(--ink-900);
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--accent);}
.faq .icon{
  position:relative;
  width:20px;height:20px;
  flex:0 0 20px;
}
.faq .icon::before,.faq .icon::after{
  content:"";
  position:absolute;
  background:var(--ink-500);
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq .icon::before{left:0;top:9px;width:20px;height:1.5px;}
.faq .icon::after{left:9px;top:0;width:1.5px;height:20px;}
.faq details[open] .icon::after{transform:rotate(90deg);}
.faq details[open] .icon::before{background:var(--accent);}
.faq .faq-body{
  padding:0 0 var(--sp-5);
  max-width:72ch;
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-500);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--paper-100);
  padding:var(--sp-8) 0;
}
.cta-grid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-7);
  flex-wrap:wrap;
}
.cta-band h2{
  font-family:var(--serif);
  font-size:clamp(24px,2.2vw,32px);
  line-height:1.3;
  font-weight:600;
  letter-spacing:.01em;
}
.cta-band p{
  margin-top:var(--sp-3);
  font-size:15px;
  line-height:1.8;
  color:rgba(250,247,241,.62);
  max-width:52ch;
}
.cta-actions{display:flex;gap:var(--sp-3);flex-wrap:wrap;}
.cta-band .btn-ghost{color:var(--paper-100);border-color:rgba(250,247,241,.4);}
.cta-band .btn-ghost:hover{background:var(--paper-100);color:var(--ink-900);border-color:var(--paper-100);}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink-900);
  color:var(--paper-100);
  padding:var(--sp-8) 0 var(--sp-5);
  border-top:1px solid rgba(250,247,241,.12);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr .8fr 1.2fr;
  gap:var(--sp-6);
}
.footer-brand .brand-name{font-size:20px;}
.footer-brand .brand-sub{font-size:12px;letter-spacing:.12em;color:rgba(250,247,241,.5);margin-top:6px;}
.footer-brand .spark{margin-top:var(--sp-4);}
.footer-title{
  font-size:13px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.5);
  margin-bottom:var(--sp-3);
}
.footer-link{
  display:inline-block;
  font-size:13px;
  line-height:2;
  color:rgba(250,247,241,.78);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-link:hover{color:#fff;border-bottom-color:var(--paper-100);}
.footer-address address{
  font-style:normal;
  font-size:12px;
  line-height:1.9;
  color:rgba(250,247,241,.6);
}
.footer-bottom{
  margin-top:var(--sp-7);
  padding-top:var(--sp-4);
  border-top:1px solid rgba(250,247,241,.12);
  display:flex;
  justify-content:space-between;
  gap:var(--sp-4);
  flex-wrap:wrap;
  font-size:12px;
  color:rgba(250,247,241,.4);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{padding:0 32px;}
}
@media (max-width:1199px){
  .container{padding:0 28px;}
  .section{padding:var(--sp-8) 0;}
  .hero-grid{gap:var(--sp-6);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:var(--sp-6);}
}
@media (max-width:1023px){
  .page{padding-left:0;}
  .site-nav{
    position:sticky;
    top:0;left:auto;right:auto;bottom:auto;
    width:100%;
    height:64px;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:0 20px;
    background:var(--paper-100);
    color:var(--ink-900);
    border-right:none;
    border-bottom:1px solid var(--line);
  }
  .nav-brand{padding:0;}
  .brand-name{font-size:18px;color:var(--ink-900);}
  .brand-sub{margin-top:2px;font-size:11px;color:var(--ink-500);}
  .nav-brand .spark{display:none;}
  .nav-toggle{display:block;}
  .nav-list{
    position:fixed;
    top:64px;left:0;right:0;bottom:0;
    margin-top:0;
    padding:var(--sp-7) var(--sp-5);
    background:var(--ink-900);
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
    z-index:90;
    overflow-y:auto;
  }
  .nav-list.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-list li + li{margin-top:4px;}
  .nav-link{
    height:56px;
    padding-left:16px;
    font-size:20px;
    color:rgba(250,247,241,.82);
    opacity:0;
    transform:translateY(6px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
  }
  .nav-list.is-open .nav-link{opacity:1;transform:translateY(0);}
  .nav-list.is-open li:nth-child(1) .nav-link{transition-delay:.06s;}
  .nav-list.is-open li:nth-child(2) .nav-link{transition-delay:.12s;}
  .nav-list.is-open li:nth-child(3) .nav-link{transition-delay:.18s;}
  .nav-list.is-open li:nth-child(4) .nav-link{transition-delay:.24s;}
  .nav-list.is-open li:nth-child(5) .nav-link{transition-delay:.30s;}
  .nav-foot{display:none;}
  .nav-mask{
    display:block;
    position:fixed;
    inset:64px 0 0 0;
    background:rgba(20,17,14,.4);
    opacity:0;
    visibility:hidden;
    transition:opacity .26s var(--ease),visibility .26s;
    z-index:85;
  }
  .nav-mask.is-open{opacity:1;visibility:visible;}
  .hero-grid{grid-template-columns:1fr;min-height:0;gap:var(--sp-6);}
  .hero-figure{aspect-ratio:16/10;max-height:none;order:-1;}
  .hero-lead{max-width:none;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .split{grid-template-columns:1fr;gap:var(--sp-5);}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:var(--sp-7);}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero{padding:var(--sp-4) 0 56px;}
  .hero-text h1{font-size:clamp(28px,7vw,34px);}
  .hero-lead{font-size:16.5px;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:var(--sp-5) var(--sp-4);}
  .section-head{margin-bottom:var(--sp-6);}
  .timeline{padding-left:var(--sp-5);}
  .timeline li{padding-left:var(--sp-4);}
  .timeline li::before{left:-24px;}
  .faq summary{font-size:16px;min-height:56px;}
  .cta-grid{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer{padding:56px 0 var(--sp-5);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5);}
  .footer-brand{grid-column:1 / -1;}
  .footer-address{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-meta{gap:8px;}
  .chip{font-size:11px;padding:5px 11px;}
  .stat-num{font-size:36px;}
  .stat-num small{font-size:12px;}
  .stats{grid-template-columns:1fr;}
  .stat + .stat{border-left:none;border-top:1px solid var(--line);}
  .btn{height:46px;padding:0 20px;font-size:13.5px;}
  .split-body h3{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --radius-btn:2px;
  --radius-card:8px;
  --shadow-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --nav-w:232px;
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ease:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper-100);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
address{font-style:normal;}
::selection{background:rgba(196,69,46,.16);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 40px;
}
.page-shell{
  padding-left:var(--nav-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.page-shell main{flex:1;}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--nav-w);
  background:var(--ink-900);
  color:var(--paper-100);
  display:flex;
  flex-direction:column;
  padding:32px 0 24px;
  border-right:1px solid rgba(250,247,241,.12);
  z-index:60;
  overflow-y:auto;
}
.sidebar-head{padding:0 24px 20px;}
.brand{display:block;}
.brand-name{
  display:block;
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.4;
}
.brand-sub{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.6);
}
.spark{
  width:32px;
  height:2px;
  background:var(--spectrum);
  margin-top:16px;
}
.nav-list{list-style:none;margin:8px 0 0;padding:0;}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:48px;
  padding:0 24px;
  font-size:15px;
  color:rgba(250,247,241,.72);
  transition:color .2s ease,background .2s ease;
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  bottom:10px;
  width:3px;
  background:var(--spectrum);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::before{transform:scaleY(1);}
.nav-link.active{
  color:var(--accent);
  background:rgba(196,69,46,.10);
}
.nav-link.active::before{transform:scaleY(1);background:var(--accent);}
.sidebar-foot{
  margin-top:auto;
  padding:24px;
  font-size:12px;
  line-height:1.9;
  color:rgba(250,247,241,.45);
}
.sidebar-foot p{margin:0;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  padding:0;
  background:transparent;
  border:0;
  color:var(--ink-900);
  cursor:pointer;
  border-radius:2px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:1.5px;
  margin:4px auto;
  background:currentColor;
  transition:transform .2s ease,opacity .2s ease;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:48px 0 0;font-size:13px;color:var(--ink-500);}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:0 8px;margin:0;padding:0;}
.breadcrumb li{display:flex;align-items:center;}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--line);}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb li:last-child{color:var(--ink-500);}

/* ---------- 文章头部 ---------- */
.article-head{padding:24px 0 0;max-width:900px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--celadon);
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
}
.article-title{
  margin-top:20px;
  font-family:var(--font-serif);
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.18;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--ink-900);
  overflow-wrap:break-word;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  margin-top:20px;
  font-size:13px;
  color:var(--ink-500);
}
.meta-item{padding:0 12px;}
.meta-item:first-child{padding-left:0;}
.meta-item:not(:first-child){border-left:1px solid var(--line);}
.rule{height:1px;background:var(--line);border:0;margin:32px 0 0;}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:56px;
  padding:48px 0 96px;
  align-items:start;
}
.article-content{min-width:0;}

/* ---------- 正文排版 ---------- */
.article-body{
  max-width:720px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
  overflow-wrap:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  margin:48px 0 16px;
  padding-left:12px;
  font-family:var(--font-serif);
  font-size:26px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink-900);
  border-left:2px solid var(--accent);
}
.article-body h3{
  margin:32px 0 12px;
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink-900);
}
.article-body h4{
  margin:24px 0 10px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body li{margin-bottom:10px;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol li::marker{color:var(--accent);font-weight:600;}
.article-body blockquote{
  position:relative;
  margin:28px 0;
  padding:4px 0 4px 20px;
  color:var(--ink-500);
  background:transparent;
}
.article-body blockquote::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--spectrum);
}
.article-body img{
  max-width:100%;
  height:auto;
  margin:28px 0;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--ink-500);
  text-align:center;
}
.article-body a{
  color:var(--ink-900);
  border-bottom:1px solid var(--ink-500);
  transition:color .2s ease,border-color .2s ease;
}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th{
  background:var(--paper-200);
  text-align:left;
  font-weight:600;
  color:var(--ink-900);
}
.article-body th,.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.article-body hr{height:1px;background:var(--line);border:0;margin:32px 0;}
.article-body strong{color:var(--ink-900);font-weight:600;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:720px;
  padding:48px 24px;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--paper-100);
}
.empty-icon{
  width:32px;
  height:32px;
  margin:0 auto 16px;
  border:1px solid var(--line);
  border-radius:4px;
}
.empty-state p{margin:0 0 10px;color:var(--ink-700);}
.empty-state .muted{font-size:14px;color:var(--ink-500);margin-bottom:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:var(--paper-100);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 12px 26px -18px rgba(196,69,46,.9);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-primary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.btn-secondary{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-secondary:hover{background:var(--ink-900);color:var(--paper-100);}
.btn-secondary:active{transform:none;}
.btn-secondary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--line);}
.related-title{
  font-family:var(--font-serif);
  font-size:24px;
  font-weight:600;
  line-height:1.3;
  color:var(--ink-900);
}
.spectrum-line{width:64px;height:2px;background:var(--spectrum);margin:16px 0 24px;}
.related-list{list-style:none;margin:0;padding:0;}
.related-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.related-item a{
  font-size:16px;
  font-weight:500;
  color:var(--ink-900);
  transition:color .2s ease;
}
.related-item a:hover{color:var(--accent);}
.related-item .cat-pill{
  flex:none;
  font-size:11px;
  letter-spacing:.08em;
  color:var(--celadon);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 10px;
}
.article-foot{margin-top:40px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 侧栏 ---------- */
.article-aside{display:none;}
.aside-block{margin-bottom:36px;}
.aside-title{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-500);
  margin-bottom:12px;
}
.toc{border-top:1px solid var(--line);padding-top:20px;}
.toc-list a{
  display:block;
  padding:8px 0 8px 12px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--ink-500);
  border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.toc-list a:hover{color:var(--ink-900);}
.toc-list a.active{color:var(--accent);border-left-color:var(--accent);}
.aside-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);}
.aside-list li{border-bottom:1px solid var(--line);}
.aside-list a{
  display:block;
  padding:12px 0;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-700);
  transition:color .2s ease;
}
.aside-list a:hover{color:var(--accent);}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:var(--paper-100);padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr 1.4fr;
  gap:32px;
}
.footer-brand .brand-name{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:600;
  color:var(--paper-100);
}
.footer-brand .brand-sub{
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.55);
  margin-top:6px;
}
.footer-title{
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.5);
  margin-bottom:14px;
}
.footer-link{
  display:inline-block;
  font-size:13px;
  line-height:2;
  color:rgba(250,247,241,.78);
  transition:color .2s ease;
}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-address address{font-size:12px;line-height:1.9;color:rgba(250,247,241,.6);}
.footer-address p{margin:0;}
.footer-bottom{
  margin-top:56px;
  padding:20px 0;
  border-top:1px solid rgba(250,247,241,.12);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:12px;
  color:rgba(250,247,241,.4);
}
.footer-bottom p{margin:0;}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,720px) 260px;gap:64px;}
  .article-aside{display:block;position:sticky;top:32px;align-self:start;}
}
@media (max-width:1199px){
  .article-layout{padding-bottom:80px;}
}
@media (max-width:1023px){
  .sidebar{
    width:100%;
    height:64px;
    flex-direction:row;
    align-items:center;
    padding:0 20px;
    background:var(--paper-100);
    color:var(--ink-900);
    border-right:0;
    border-bottom:1px solid var(--line);
    overflow:visible;
  }
  .sidebar-head{padding:0;display:flex;align-items:center;gap:12px;}
  .brand-name{font-size:18px;color:var(--ink-900);}
  .brand-sub{margin-top:0;font-size:11px;color:var(--ink-500);}
  .spark{display:none;}
  .nav-toggle{display:block;}
  .sidebar nav{flex:1;}
  .nav-list{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    bottom:0;
    margin:0;
    padding:24px 20px;
    background:var(--ink-900);
    display:flex;
    flex-direction:column;
    gap:2px;
    opacity:0;
    transform:translateY(-8px);
    pointer-events:none;
    overflow-y:auto;
    transition:opacity .24s ease,transform .24s ease;
    z-index:70;
  }
  .sidebar.open .nav-list{opacity:1;transform:none;pointer-events:auto;}
  .sidebar.open .nav-toggle span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
  .sidebar.open .nav-toggle span:nth-child(2){opacity:0;}
  .sidebar.open .nav-toggle span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
  .nav-link{
    height:56px;
    padding:0 4px;
    font-size:20px;
    color:rgba(250,247,241,.72);
  }
  .nav-link::before{display:none;}
  .nav-link.active{color:var(--accent);background:transparent;}
  .sidebar-foot{display:none;}
  .page-shell{padding-left:0;padding-top:64px;}
  .container{padding:0 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .breadcrumb{padding-top:32px;}
  .article-title{font-size:30px;}
  .meta-row{font-size:12.5px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin-top:40px;}
  .article-body h3{font-size:18px;}
  .article-layout{padding:32px 0 64px;gap:40px;}
  .footer{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .article-foot .btn{width:100%;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .article-title{font-size:26px;line-height:1.25;}
  .related-item{flex-direction:column;align-items:flex-start;gap:6px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --radius-btn:2px;
  --radius-card:8px;
  --shadow-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC","Microsoft YaHei",serif;
  --side:232px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body,h1,h2,h3,h4,p,figure,blockquote,ul,ol,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
address{font-style:normal;}
[hidden]{display:none !important;}
body{
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  color:var(--ink-700);
  background:var(--paper-100);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden;}
h1,h2,h3{font-family:var(--serif);color:var(--ink-900);letter-spacing:-0.01em;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:var(--radius-btn);
}
::selection{background:rgba(196,69,46,.16);color:var(--ink-900);}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--side);
  height:100vh;
  background:var(--ink-900);
  border-right:1px solid rgba(250,247,241,.12);
  z-index:90;
}
.sidebar-inner{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:34px 0 24px;
}
.brand{
  display:block;
  padding:0 24px;
}
.brand-name{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:0.02em;
  color:var(--paper-100);
}
.brand-sub{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:0.12em;
  color:rgba(250,247,241,.55);
}
.brand .spark{
  width:32px;
  height:2px;
  margin-top:18px;
  background:var(--spectrum);
  border-radius:1px;
}
.nav{margin-top:44px;}
.nav-link{
  position:relative;
  display:block;
  height:48px;
  line-height:48px;
  padding-left:24px;
  font-size:15px;
  color:rgba(250,247,241,.72);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  background:var(--spectrum);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--paper-100);}
.nav-link:hover::before{transform:scaleY(1);}
.nav-link.active{
  color:var(--accent);
  background:rgba(196,69,46,.10);
}
.nav-link.active::before{
  background:var(--accent);
  transform:scaleY(1);
}
.sidebar-foot{
  margin-top:auto;
  padding:0 24px;
  font-size:11.5px;
  line-height:1.9;
  color:rgba(250,247,241,.45);
}
.sidebar-foot span{display:block;}
.menu-toggle{
  display:none;
  position:relative;
  width:44px;height:44px;
  flex:0 0 auto;
}
.menu-toggle span{
  position:absolute;
  left:11px;
  width:22px;height:1.5px;
  background:var(--ink-900);
  border-radius:1px;
  transition:transform .24s ease,opacity .18s ease;
}
.menu-toggle span:nth-child(1){top:16px;}
.menu-toggle span:nth-child(2){top:22px;}
.menu-toggle span:nth-child(3){top:28px;}
.sidebar.is-open .menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.sidebar.is-open .menu-toggle span:nth-child(2){opacity:0;}
.sidebar.is-open .menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 版面容器 ============ */
.page{padding-left:var(--side);}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 40px;
}
.spark{
  width:64px;
  height:2px;
  background:var(--spectrum);
  border-radius:1px;
}

/* ============ 页头 ============ */
.page-head{
  padding:72px 0 56px;
  border-bottom:1px solid var(--line);
}
.crumb ol{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-500);
}
.crumb a{color:var(--ink-500);transition:color .2s ease;}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--paper-300);}
.crumb [aria-current="page"]{color:var(--ink-500);}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  margin-top:28px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:12px;
  letter-spacing:0.16em;
  color:var(--ink-500);
}
.page-head h1{
  margin-top:20px;
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.15;
  font-weight:600;
  max-width:19em;
}
.lede{
  margin-top:20px;
  max-width:54ch;
  font-size:18px;
  line-height:1.8;
  color:var(--ink-500);
}
.page-head .spark{margin-top:28px;}
.stat-row{
  display:flex;
  flex-wrap:wrap;
  margin-top:40px;
}
.stat{
  padding:0 32px;
  border-left:1px solid var(--line);
}
.stat:first-child{padding-left:0;border-left:0;}
.stat b{
  display:block;
  font-family:var(--serif);
  font-size:clamp(24px,2.4vw,32px);
  font-weight:600;
  line-height:1.2;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:0.08em;
  color:var(--ink-500);
}

/* ============ 图集板块 ============ */
.gallery-section{padding:96px 0 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
}
.section-head h2{
  font-size:clamp(24px,2.2vw,32px);
  line-height:1.25;
  font-weight:600;
}
.section-note{
  font-size:14px;
  color:var(--ink-500);
}
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:32px 0 28px;
}
.chip{
  height:36px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  color:var(--ink-700);
  background:transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--paper-200);}
.chip.is-active{
  background:var(--ink-900);
  border-color:var(--ink-900);
  color:var(--paper-100);
}
.gallery{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:220px;
  gap:16px;
}
.gallery-item{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-card);
  background:var(--paper-200);
  border:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.gallery-item.wide{grid-column:span 2;}
.gallery-item:hover{box-shadow:var(--shadow-hover);}
.gallery-media{position:absolute;inset:0;}
.gallery-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease-out;
}
.gallery-item:hover .gallery-media img{transform:scale(1.03);}
.gallery-cap{
  position:absolute;
  left:0;right:0;bottom:0;
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:16px 16px 14px;
  background:linear-gradient(180deg,rgba(20,17,14,0) 0%,rgba(20,17,14,.78) 100%);
  transition:transform .3s ease;
}
.gallery-item:hover .gallery-cap{transform:translateY(-2px);}
.cap-title{
  font-size:15px;
  font-weight:600;
  line-height:1.45;
  color:var(--paper-100);
}
.cap-cat{
  flex:0 0 auto;
  font-size:12px;
  letter-spacing:0.08em;
  color:rgba(250,247,241,.72);
}
.more-wrap{margin-top:40px;}
.more-link{
  position:relative;
  display:inline-block;
  padding-bottom:5px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-900);
}
.more-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:var(--ink-900);
  transition:background .2s ease;
}
.more-link:hover::after{background:var(--accent);}

/* ============ 引述 ============ */
.quote-section{padding:96px 0;}
.quote{
  position:relative;
  max-width:60ch;
  padding-left:24px;
}
.quote::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  background:var(--spectrum);
  border-radius:2px;
}
.quote p{
  font-family:var(--serif);
  font-size:20px;
  line-height:1.9;
  font-weight:500;
  color:var(--ink-900);
}
.quote cite{
  display:block;
  margin-top:16px;
  font-size:13px;
  font-style:normal;
  color:var(--ink-500);
  letter-spacing:0.06em;
}

/* ============ 底部转化带 ============ */
.cta-band{
  background:var(--ink-900);
  color:var(--paper-100);
  padding:80px 0;
}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{
  color:var(--paper-100);
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.3;
  font-weight:600;
}
.cta-band p{
  margin-top:12px;
  max-width:46ch;
  font-size:15px;
  line-height:1.8;
  color:rgba(250,247,241,.65);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:500;
  letter-spacing:0.02em;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:var(--paper-100);
}
.btn-primary:hover{
  background:var(--accent-deep);
  transform:translateY(-1px);
  box-shadow:0 14px 26px -18px rgba(20,17,14,.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-primary[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 页脚 ============ */
.footer{
  background:var(--ink-900);
  color:rgba(250,247,241,.72);
  padding:72px 0 0;
}
.footer .container{padding-bottom:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr 1.6fr;
  gap:32px;
}
.footer .brand-name{
  font-family:var(--serif);
  font-size:20px;
  font-weight:600;
  letter-spacing:0.02em;
  color:var(--paper-100);
}
.footer .brand-sub{
  margin-top:6px;
  font-size:13px;
  letter-spacing:0.06em;
  color:rgba(250,247,241,.5);
}
.footer .spark{
  width:32px;
  height:2px;
  margin-top:18px;
  background:var(--spectrum);
}
.footer-title{
  margin-bottom:14px;
  font-size:12px;
  letter-spacing:0.12em;
  color:rgba(250,247,241,.5);
}
.footer-link{
  display:inline-block;
  font-size:13px;
  line-height:2;
  color:rgba(250,247,241,.72);
  transition:color .2s ease;
}
.footer-link:hover{
  color:var(--paper-100);
  text-decoration:underline;
  text-decoration-color:var(--accent);
  text-underline-offset:4px;
}
.footer-address address{
  font-size:12px;
  line-height:1.9;
  color:rgba(250,247,241,.6);
}
.footer-address p{margin-bottom:2px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  margin-top:48px;
  padding:20px 0 24px;
  border-top:1px solid rgba(250,247,241,.12);
  font-size:12px;
  color:rgba(250,247,241,.4);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 32px;}
  .gallery{grid-auto-rows:200px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-address{grid-column:span 3;}
}
@media (max-width:1023px){
  .page{padding-left:0;}
  .sidebar{
    position:sticky;
    top:0;
    width:100%;
    height:64px;
    background:var(--paper-100);
    border-right:0;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 0 rgba(20,17,14,.02);
  }
  .sidebar-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    height:64px;
    padding:0 20px;
    gap:16px;
  }
  .brand{padding:0;}
  .brand-name{font-size:18px;color:var(--ink-900);}
  .brand-sub{display:none;}
  .brand .spark{display:none;}
  .menu-toggle{display:block;}
  .nav{
    position:fixed;
    top:64px;left:0;right:0;bottom:0;
    margin-top:0;
    padding:28px 24px 48px;
    background:var(--ink-900);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
  }
  .sidebar.is-open .nav{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{
    height:52px;
    line-height:52px;
    padding-left:18px;
    font-size:20px;
  }
  .nav-link::before{top:12px;bottom:12px;}
  .sidebar-foot{display:none;}
  .page-head{padding:48px 0 40px;}
  .gallery-section{padding:72px 0 0;}
  .quote-section{padding:72px 0;}
  .cta-band{padding:64px 0;}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px;}
  .footer{padding:56px 0 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-head h1{font-size:clamp(26px,7vw,34px);}
  .lede{font-size:16.5px;}
  .stat{padding:0 20px;}
  .stat-row{margin-top:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .chips{gap:8px;margin:24px 0 22px;}
  .chip{height:34px;padding:0 15px;font-size:12.5px;}
  .gallery{grid-template-columns:1fr;grid-auto-rows:210px;gap:12px;}
  .gallery-item.wide{grid-column:span 1;}
  .more-wrap{margin-top:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:span 2;}
  .footer-address{grid-column:span 2;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:479px){
  .page-head{padding:36px 0 32px;}
  .stat{padding:0 14px;}
  .stat b{font-size:22px;}
  .quote p{font-size:18px;}
  .gallery{grid-auto-rows:180px;}
  .gallery-cap{padding:12px 12px 10px;}
  .cap-title{font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand,.footer-address{grid-column:span 1;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category2 */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --nav-w:232px;
  --maxw:1240px;
  --r-btn:2px;
  --r-card:8px;
  --shadow-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper-100);
  color:var(--ink-700);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
body.locked{overflow:hidden;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
address{font-style:normal;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 40px;
}
.page{padding-left:var(--nav-w);}
@media (max-width:1023px){ .page{padding-left:0;} }

/* ---------- 左侧竖向导航 ---------- */
.sidenav{
  position:fixed;
  top:0;left:0;
  width:var(--nav-w);
  height:100vh;
  height:100dvh;
  background:var(--ink-900);
  color:var(--paper-100);
  border-right:1px solid rgba(250,247,241,.12);
  display:flex;
  flex-direction:column;
  padding:36px 0 24px;
  z-index:60;
  overflow-y:auto;
}
.sidenav-brand{padding:0 24px 28px;}
.brand-name{
  display:block;
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.3;
  color:var(--paper-100);
}
.brand-sub{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.55);
}
.spark{
  width:32px;
  height:2px;
  margin-top:18px;
  background:var(--spectrum);
}
.nav-list{padding:4px 0;}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:48px;
  padding-left:24px;
  font-size:15px;
  color:rgba(250,247,241,.72);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--spectrum);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::before{transform:scaleY(1);}
.nav-link.active{
  color:var(--accent);
  background:rgba(196,69,46,.10);
}
.nav-link.active::before{transform:scaleY(1);background:var(--accent);}
.sidenav-foot{
  margin-top:auto;
  padding:28px 24px 0;
  font-size:12px;
  line-height:1.8;
  color:rgba(250,247,241,.45);
}
.sidenav-foot p{margin:0 0 2px;}

/* ---------- 移动顶部栏 ---------- */
.mobilebar{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  height:64px;
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
  background:var(--paper-100);
  border-bottom:1px solid var(--line);
}
.mobilebar .brand-name{
  font-size:18px;
  color:var(--ink-900);
}
.mobilebar .brand-sub{
  font-size:10px;
  letter-spacing:.14em;
  color:var(--ink-500);
  margin-top:2px;
}
.menu-btn{
  width:44px;height:44px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:var(--r-btn);
}
.menu-btn span{
  display:block;
  width:18px;height:1.5px;
  background:var(--ink-900);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:var(--ink-900);
  color:var(--paper-100);
  padding:24px 24px 40px;
  display:flex;
  flex-direction:column;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform .32s var(--ease),opacity .32s var(--ease),visibility .32s;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:20px;
  border-bottom:1px solid rgba(250,247,241,.12);
}
.drawer-close{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
  color:rgba(250,247,241,.75);
  border-radius:var(--r-btn);
}
.drawer-close:hover{color:#fff;}
.drawer-list{margin-top:24px;display:flex;flex-direction:column;}
.drawer-list li{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.drawer.open .drawer-list li{opacity:1;transform:none;}
.drawer.open .drawer-list li:nth-child(1){transition-delay:.06s;}
.drawer.open .drawer-list li:nth-child(2){transition-delay:.12s;}
.drawer.open .drawer-list li:nth-child(3){transition-delay:.18s;}
.drawer.open .drawer-list li:nth-child(4){transition-delay:.24s;}
.drawer.open .drawer-list li:nth-child(5){transition-delay:.30s;}
.drawer-list a{
  display:block;
  padding:16px 0;
  font-size:20px;
  font-weight:500;
  color:rgba(250,247,241,.78);
  border-bottom:1px solid rgba(250,247,241,.10);
}
.drawer-list a.active{color:var(--accent);}
.drawer-foot{
  margin-top:auto;
  font-size:12px;
  line-height:1.9;
  color:rgba(250,247,241,.45);
}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:36px;font-size:13px;color:var(--ink-500);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;}
.crumb li + li::before{content:"/";margin-right:8px;color:var(--paper-300);}
.crumb a{transition:color .2s var(--ease);}
.crumb a:hover{color:var(--accent);}
.crumb li:last-child{color:var(--ink-500);}

/* ---------- 文档页头 ---------- */
.doc-head{padding:36px 0 44px;border-bottom:1px solid var(--line);}
.doc-tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--celadon);
}
.doc-head h1{
  margin-top:18px;
  font-family:var(--font-serif);
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.16;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--ink-900);
}
.doc-lead{
  margin-top:20px;
  max-width:60ch;
  font-size:18px;
  line-height:1.8;
  color:var(--ink-500);
}
.doc-meta{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  font-size:13px;
  color:var(--ink-500);
}
.doc-meta span{display:flex;align-items:center;gap:14px;}
.doc-meta span + span::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block;}

/* ---------- 两栏正文 ---------- */
.doc-layout{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:64px;
  align-items:start;
  padding:56px 0 96px;
}
.anchor-nav{position:sticky;top:32px;}
.anchor-nav .anchor-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--ink-500);
  padding:0 12px 12px;
}
.anchor-link{
  display:block;
  padding:10px 12px;
  font-size:13px;
  line-height:1.5;
  color:var(--ink-500);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.anchor-link:hover{color:var(--ink-900);background:var(--paper-200);}
.anchor-link.active{
  color:var(--ink-900);
  border-left-color:var(--accent);
  font-weight:500;
}

/* ---------- 章节 ---------- */
.rule-section{scroll-margin-top:96px;margin-bottom:64px;}
.rule-section:last-child{margin-bottom:0;}
.sec-head{
  display:flex;
  align-items:baseline;
  gap:16px;
  padding-bottom:16px;
  margin-bottom:22px;
  border-bottom:1px solid var(--line);
}
.sec-num{
  flex:none;
  font-family:var(--font-serif);
  font-size:15px;
  letter-spacing:.16em;
  color:var(--amber);
}
.sec-head h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.32;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--ink-900);
}
.rule-section p{
  max-width:72ch;
  margin-bottom:20px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
}
.rule-section p:last-child{margin-bottom:0;}
.rule-list{
  max-width:72ch;
  margin:24px 0;
  display:grid;
  gap:12px;
}
.rule-list li{
  position:relative;
  padding-left:22px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
}
.rule-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:8px;
  background:var(--accent);
}

/* ---------- 表格 ---------- */
.table-wrap{
  margin:26px 0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow-x:auto;
  background:var(--paper-100);
}
table{
  width:100%;
  min-width:560px;
  border-collapse:collapse;
  font-size:15px;
  line-height:1.6;
}
th{
  background:var(--paper-200);
  text-align:left;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--ink-700);
}
th,td{
  height:48px;
  padding:10px 20px;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
tbody tr:last-child td{border-bottom:0;}
td:last-child{color:var(--ink-500);}

/* ---------- 配图 ---------- */
.doc-figure{max-width:720px;margin:32px 0;}
.doc-figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--paper-200);
}
.doc-figure figcaption{
  margin-top:12px;
  font-size:13px;
  color:var(--ink-500);
  text-align:center;
}

/* ---------- 折叠细则 ---------- */
.faq-block{margin-top:8px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 0;
  font-size:16px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink-900);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-icon{
  position:relative;
  flex:none;
  width:16px;height:16px;
  color:var(--ink-500);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px;}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open] .faq-icon{color:var(--accent);}
.faq-body{
  max-width:72ch;
  padding:0 0 22px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-500);
}

/* ---------- 尾部文字链 ---------- */
.doc-foot{
  margin-top:64px;
  padding-top:32px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:16px 32px;
  align-items:center;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
  padding-bottom:3px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link .arrow{transition:transform .2s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink-900);
  color:var(--paper-100);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr 1.5fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand .brand-name{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:600;
  color:var(--paper-100);
  letter-spacing:.02em;
}
.footer-brand .brand-sub{
  margin-top:6px;
  font-size:13px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.55);
}
.footer-title{
  margin-bottom:14px;
  font-size:13px;
  letter-spacing:.12em;
  color:rgba(250,247,241,.55);
}
.footer-link{
  display:inline-block;
  font-size:13px;
  line-height:1.9;
  color:rgba(250,247,241,.8);
  transition:color .2s var(--ease);
}
.footer-link:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-color:var(--accent);
}
.footer-address address{
  font-size:12px;
  line-height:1.9;
  color:rgba(250,247,241,.6);
}
.footer-address address p{margin:0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px 24px;
  padding:20px 0 28px;
  border-top:1px solid rgba(250,247,241,.12);
  font-size:12px;
  color:rgba(250,247,241,.4);
}
.footer-bottom p{margin:0;}

/* ---------- 动效 ---------- */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:none;}
}
.doc-head,.doc-layout{animation:fadeUp .6s var(--ease) both;}
.doc-layout{animation-delay:.08s;}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:180px minmax(0,1fr);gap:44px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px;}
  .footer-address{grid-column:1 / -1;}
}
@media (max-width:1023px){
  .sidenav{display:none;}
  .mobilebar{display:flex;}
  .container{padding:0 32px;}
  .doc-layout{
    grid-template-columns:minmax(0,1fr);
    gap:24px;
    padding:32px 0 72px;
  }
  .anchor-nav{
    position:sticky;
    top:64px;
    z-index:30;
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding:12px 0;
    background:var(--paper-100);
    border-bottom:1px solid var(--line);
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .anchor-nav::-webkit-scrollbar{display:none;}
  .anchor-nav .anchor-title{display:none;}
  .anchor-link{
    flex:none;
    padding:8px 16px;
    font-size:13px;
    line-height:1.4;
    border:1px solid var(--line);
    border-left:1px solid var(--line);
    border-radius:999px;
    white-space:nowrap;
  }
  .anchor-link.active{
    background:var(--ink-900);
    color:var(--paper-100);
    border-color:var(--ink-900);
  }
  .anchor-link.active:hover{background:var(--ink-900);color:var(--paper-100);}
  .rule-section{scroll-margin-top:130px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .crumb{padding-top:24px;}
  .doc-head{padding:28px 0 32px;}
  .doc-lead{font-size:16.5px;line-height:1.8;}
  .doc-head h1{margin-top:14px;}
  .doc-layout{padding:24px 0 56px;}
  .rule-section{margin-bottom:48px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:6px;padding-bottom:12px;margin-bottom:18px;}
  .rule-section p{font-size:16px;line-height:1.9;}
  .rule-list li{font-size:15.5px;}
  .faq-item summary{font-size:15.5px;padding:14px 0;}
  .doc-figure{margin:24px 0;}
  .footer{padding:56px 0 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;padding-bottom:40px;}
  .footer-brand,.footer-address{grid-column:1 / -1;}
  .footer-bottom{justify-content:flex-start;font-size:12px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .doc-head h1{font-size:28px;}
  .sec-head h2{font-size:21px;}
  .doc-meta{flex-direction:column;gap:8px;}
  .doc-meta span + span::before{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand,.footer-address{grid-column:auto;}
  .doc-foot{flex-direction:column;align-items:flex-start;}
  th,td{padding:10px 14px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category4 */
:root{
  --ink-900:#14110E;
  --ink-700:#2B2622;
  --ink-500:#57514A;
  --paper-100:#FAF7F1;
  --paper-200:#F1EBE0;
  --paper-300:#E7DFD1;
  --surface:#FFFDF8;
  --line:#DCD3C4;
  --accent:#C4452E;
  --accent-deep:#9A3323;
  --amber:#D89B3C;
  --celadon:#3E6F63;
  --spectrum:linear-gradient(90deg,#C4452E 0%,#D89B3C 50%,#3E6F63 100%);
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --radius-btn:2px;
  --radius-card:8px;
  --shadow-hover:0 18px 40px -24px rgba(20,17,14,.28);
  --nav-w:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper-100);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:-0.01em;
  margin:0;
  line-height:1.25;
}
p{margin:0}
img{display:block;max-width:100%;height:auto;background:var(--paper-200)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
[hidden]{display:none !important}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--ink-900);color:var(--paper-100);
  border-right:1px solid rgba(250,247,241,.12);
  display:flex;flex-direction:column;
  padding:36px 0 28px;
  z-index:60;
}
.brand{display:block;padding:0 24px 0;margin-bottom:0}
.brand-name{
  font-family:var(--font-serif);font-size:22px;font-weight:600;
  color:var(--paper-100);letter-spacing:.02em;display:block;line-height:1.3;
}
.brand-sub{
  font-size:12px;letter-spacing:.12em;color:rgba(250,247,241,.55);
  margin-top:6px;
}
.spark{width:32px;height:2px;background:var(--spectrum);margin-top:18px}
.nav-list{display:flex;flex-direction:column;gap:2px;margin-top:28px}
.nav-link{
  position:relative;display:flex;align-items:center;
  height:48px;padding-left:24px;padding-right:16px;
  font-size:15px;color:rgba(250,247,241,.72);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--spectrum);transform:scaleY(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--paper-100)}
.nav-link:hover::before{transform:scaleY(1)}
.nav-link.active{
  color:var(--accent);background:rgba(196,69,46,.10);
}
.nav-link.active::before{background:var(--accent);transform:scaleY(1)}
.side-foot{
  margin-top:auto;padding:24px 24px 0;
  font-size:12px;line-height:1.8;color:rgba(250,247,241,.45);
  border-top:1px solid rgba(250,247,241,.10);
}
.side-foot p+p{margin-top:4px}

/* ---------- 移动端导航 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;
  height:64px;padding:0 20px;
  align-items:center;justify-content:space-between;
  background:var(--paper-100);border-bottom:1px solid var(--line);
}
.mobile-brand{
  font-family:var(--font-serif);font-size:18px;font-weight:600;letter-spacing:.02em;
}
.burger{
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  width:44px;height:44px;background:transparent;border:0;cursor:pointer;
  border-radius:2px;
}
.burger span{
  display:block;width:18px;height:2px;background:var(--ink-900);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink-900);
  padding:88px 24px 40px;
  transform:translateX(100%);visibility:hidden;
  transition:transform .3s var(--ease),visibility .3s var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);visibility:visible}
.drawer-list{display:flex;flex-direction:column;gap:0}
.drawer-list li{
  opacity:0;transform:translateY(10px);
  transition:opacity .34s var(--ease),transform .34s var(--ease);
}
.drawer.open .drawer-list li{opacity:1;transform:none}
.drawer.open .drawer-list li:nth-child(1){transition-delay:.06s}
.drawer.open .drawer-list li:nth-child(2){transition-delay:.12s}
.drawer.open .drawer-list li:nth-child(3){transition-delay:.18s}
.drawer.open .drawer-list li:nth-child(4){transition-delay:.24s}
.drawer.open .drawer-list li:nth-child(5){transition-delay:.30s}
.drawer-link{
  display:block;padding:16px 0;
  font-family:var(--font-serif);font-size:20px;
  color:rgba(250,247,241,.82);
  border-bottom:1px solid rgba(250,247,241,.10);
}
.drawer-link.active{color:var(--accent)}
.drawer-foot{
  margin-top:32px;font-size:12px;line-height:1.9;color:rgba(250,247,241,.45);
}
body.nav-open{overflow:hidden}

/* ---------- 主区域 ---------- */
.page-shell{padding-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* ---------- 通用组件 ---------- */
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.12em;
  border:1px solid var(--line);color:var(--ink-500);
  background:transparent;
}
.tag-accent{border-color:rgba(196,69,46,.4);color:var(--accent)}
.tag-celadon{border-color:rgba(62,111,99,.45);color:var(--celadon)}
.tag-amber{border-color:rgba(216,155,60,.55);color:#9A6E20}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:14px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),transform .2s var(--ease),
             box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent);color:var(--paper-100)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 12px 26px -18px rgba(20,17,14,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-100)}
.btn-block{width:100%}
.btn.is-loading::before{
  content:"";width:14px;height:14px;margin-right:8px;border-radius:50%;
  border:2px solid rgba(250,247,241,.4);border-top-color:var(--paper-100);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.rule-line{width:64px;height:2px;background:var(--spectrum);margin-top:16px}
.section-head{margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.2vw,32px);line-height:1.25}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.8;color:var(--ink-500);max-width:58ch}
.kicker{
  font-size:12px;letter-spacing:.16em;color:var(--ink-500);
  display:block;margin-bottom:14px;
}

/* ---------- 页头 ---------- */
.page-head{padding:72px 0 56px;border-bottom:1px solid var(--line)}
.page-head .tag{margin-bottom:20px}
.page-head h1{
  font-size:clamp(30px,3.6vw,46px);line-height:1.15;max-width:24ch;
}
.page-head h1 em{font-style:normal;color:var(--accent)}
.page-lead{
  margin-top:20px;font-size:18px;line-height:1.8;color:var(--ink-500);max-width:54ch;
}
.page-head .rule-line{margin-top:24px}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-bottom:1px solid var(--line);
}
.stat{padding:32px 24px 32px 0;border-right:1px solid var(--line)}
.stat:not(:first-child){padding-left:24px}
.stat:last-child{border-right:0}
.stat-num{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(26px,2.4vw,34px);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:0;
}
.stat-label{margin-top:10px;font-size:12px;letter-spacing:.12em;color:var(--ink-500)}

/* ---------- 报名两栏 ---------- */
.signup-grid{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:64px;padding:96px 0 72px;align-items:start;
}
.steps{margin-top:32px;border-top:1px solid var(--line)}
.step{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:16px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.step-num{
  font-family:var(--font-serif);font-size:28px;font-weight:600;line-height:1.2;
  color:var(--line);font-variant-numeric:tabular-nums;
  transition:color .2s var(--ease);
}
.step:hover .step-num{color:var(--accent)}
.step h3{font-size:18px;line-height:1.45;margin-bottom:6px}
.step p{font-size:14.5px;line-height:1.8;color:var(--ink-500)}
.side-figure{
  margin:32px 0 0;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:var(--paper-200);
}
.side-figure img{width:100%;aspect-ratio:3/2;object-fit:cover}
.side-figure figcaption{
  font-size:13px;line-height:1.6;color:var(--ink-500);
  padding:12px 16px;background:var(--surface);
}

/* ---------- 表单卡 ---------- */
.form-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:32px;
}
.form-head h2{font-size:24px;line-height:1.3}
.form-head p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--ink-500)}
.form-body{margin-top:28px;display:grid;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;font-weight:500;letter-spacing:.06em;color:var(--ink-700)}
.field label .req{color:var(--accent)}
.input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--paper-100);color:var(--ink-900);
  font-family:var(--font-sans);font-size:15px;line-height:1.5;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.input::placeholder{color:#9B9184}
.input:hover{border-color:#C9BFAC}
.input:focus{
  outline:none;border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 3px rgba(196,69,46,.10);
}
.input[aria-invalid="true"]{border-color:#D2553C}
textarea.input{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
select.input{
  appearance:none;-webkit-appearance:none;
  padding-right:38px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2357514A' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.err{font-size:12px;line-height:1.5;color:#C0402A;min-height:0}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.7;color:var(--ink-500)}
.agree input{width:16px;height:16px;margin:3px 0 0;accent-color:var(--accent);flex:0 0 auto}
.agree a{color:var(--ink-900);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.agree a:hover{color:var(--accent)}
.form-note{font-size:12px;line-height:1.7;color:var(--ink-500)}
.form-success{
  margin-top:24px;padding:20px;border-radius:var(--radius-card);
  border:1px solid rgba(62,111,99,.5);background:rgba(62,111,99,.07);
}
.form-success h3{font-size:17px;color:var(--celadon);margin-bottom:6px}
.form-success p{font-size:14px;line-height:1.75;color:var(--ink-500)}

/* ---------- 参与须知 ---------- */
.notes-section{padding:0 0 96px}
.notes-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 64px;border-top:1px solid var(--line);
}
.note{
  display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.note-num{
  font-family:var(--font-serif);font-size:32px;font-weight:600;line-height:1.15;
  color:var(--line);font-variant-numeric:tabular-nums;
  transition:color .2s var(--ease);
}
.note:hover .note-num{color:var(--accent)}
.note h3{font-size:18px;line-height:1.45;margin-bottom:6px}
.note p{font-size:14.5px;line-height:1.8;color:var(--ink-500)}

/* ---------- 联系信息 ---------- */
.contact-band{
  background:var(--paper-200);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.contact-item{
  padding-left:20px;border-left:2px solid var(--line);
  transition:border-color .2s var(--ease);
}
.contact-item:hover{border-color:var(--accent)}
.contact-item h3{
  font-family:var(--font-sans);font-size:13px;font-weight:500;
  letter-spacing:.12em;color:var(--ink-500);margin-bottom:10px;
}
.contact-item p{font-size:15px;line-height:1.7;color:var(--ink-900)}
.contact-item p.sub{font-size:13px;line-height:1.7;color:var(--ink-500);margin-top:6px}
.contact-item a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:var(--line)}
.contact-item a:hover{text-decoration-color:var(--accent);color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-section{padding:96px 0}
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;min-height:60px;
  padding:8px 44px 8px 0;
  font-family:var(--font-sans);font-size:17px;font-weight:500;line-height:1.6;
  color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary::before{
  content:"";position:absolute;right:0;top:50%;width:14px;height:1.5px;
  background:var(--ink-700);transform:translateY(-50%);
  transition:background-color .2s var(--ease);
}
.faq-item summary::after{
  content:"";position:absolute;right:6.25px;top:50%;width:1.5px;height:14px;
  background:var(--ink-700);transform:translateY(-50%) scaleY(1);
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) scaleY(0)}
.faq-item[open] summary{color:var(--ink-900)}
.faq-item summary:hover::before,.faq-item summary:hover::after{background:var(--accent)}
.faq-answer{
  padding:0 0 20px;max-width:72ch;
  font-size:15.5px;line-height:1.9;color:var(--ink-500);
}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--ink-900);color:var(--paper-100);padding:80px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3;color:var(--paper-100);max-width:22ch}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(250,247,241,.66);max-width:42ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(250,247,241,.4);color:var(--paper-100)}
.cta-band .btn-ghost:hover{background:var(--paper-100);color:var(--ink-900);border-color:var(--paper-100)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:var(--paper-100);padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.4fr;
  gap:32px;padding-bottom:56px;
}
.footer-brand .brand-name{font-size:20px}
.footer-brand .brand-sub{font-size:13px;color:rgba(250,247,241,.5);letter-spacing:.12em;margin-top:8px}
.footer-brand .spark{width:32px;height:2px;background:var(--spectrum);margin-top:18px}
.footer-title{font-size:13px;letter-spacing:.12em;color:rgba(250,247,241,.45);margin-bottom:14px}
.footer-link{
  display:inline-block;font-size:13px;line-height:2;
  color:rgba(250,247,241,.72);
  text-decoration:underline;text-decoration-color:transparent;
  text-underline-offset:4px;text-decoration-thickness:1px;
  transition:color .2s var(--ease),text-decoration-color .2s var(--ease);
}
.footer-link:hover{color:#fff;text-decoration-color:var(--accent)}
.footer-address address{font-style:normal}
.footer-address p{font-size:12px;line-height:1.9;color:rgba(250,247,241,.6)}
.footer-bottom{
  border-top:1px solid rgba(250,247,241,.14);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;line-height:1.7;color:rgba(250,247,241,.4);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{padding:0 32px}
}
@media (max-width:1199px){
  .signup-grid{grid-template-columns:1fr;gap:48px;padding:72px 0 56px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:40px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .page-shell{padding-left:0}
  .container{padding:0 28px}
  .page-head{padding:56px 0 44px}
  .notes-section{padding:0 0 72px}
  .faq-section{padding:72px 0}
  .contact-band{padding:56px 0}
  .cta-band{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-head{padding:44px 0 36px}
  .page-lead{font-size:16.5px;max-width:none}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:24px 16px 24px 0}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .stat:nth-child(3){padding-left:0}
  .stat:nth-child(4){padding-left:16px}
  .stat:nth-child(3){padding-right:16px}
  .signup-grid{padding:48px 0 40px;gap:40px}
  .form-card{padding:24px}
  .notes-grid{grid-template-columns:1fr;gap:0}
  .note{grid-template-columns:36px minmax(0,1fr);gap:12px}
  .note-num{font-size:26px}
  .contact-grid{grid-template-columns:1fr;gap:24px}
  .faq-item summary{font-size:16px;min-height:56px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-band h2{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
  .footer-brand{grid-column:1 / -1}
  .footer-address{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .page-head h1{font-size:30px}
  .step{grid-template-columns:40px minmax(0,1fr);gap:12px}
  .step-num{font-size:24px}
  .btn{width:100%;padding:0 20px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}