/* roulang page: index */
:root{
  --primary:#12403A;
  --primary-deep:#0B2A26;
  --accent:#C0602B;
  --accent-soft:#F3E3D8;
  --bg:#F7F5F0;
  --bg-warm:#EFEBE3;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#CFC8BA;
  --ink:#101A18;
  --ink-2:#6B6A64;
  --ink-3:#8E8C84;
  --pos:#2E7D5B;
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 0 rgba(16,26,24,.04);
  --shadow-2:0 12px 32px rgba(16,26,24,.08);
  --shadow-3:0 20px 48px rgba(16,26,24,.14);
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --container:1240px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--accent-soft);color:var(--primary-deep);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad);}
.section{padding:104px 0;}
.section--tight{padding:76px 0;}
.section--paper{background:var(--bg);}
.section--white{background:var(--card);}
.section--gray{background:var(--bg-warm);}
.section--dark{background:var(--primary-deep);color:#EDEAE3;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);font-weight:500;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block;}

.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.02em;margin-top:14px;}
.section-head p{color:var(--ink-2);font-size:15px;max-width:520px;margin-top:12px;}
.section-head--dark h2{color:#F4F1EA;}
.section-head--dark p{color:rgba(244,241,234,.66);}

.link-more{
  font-size:14px;font-weight:500;color:var(--primary);
  border-bottom:2px solid var(--accent);padding-bottom:3px;
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  transition:border-color .2s ease,color .2s ease;
}
.link-more:hover{border-bottom-width:4px;color:var(--accent);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;line-height:1.2;
  border:1px solid transparent;transition:all .22s ease;
}
.btn .btn-arrow{transition:transform .22s ease;}
.btn:hover .btn-arrow{transform:translateX(3px);}
.btn-primary{background:var(--primary);color:#F7F5F0;}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--primary-deep);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.88);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,26,24,.07);}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 var(--pad);
  height:64px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{position:relative;width:26px;height:26px;flex:none;}
.brand-mark::before{content:"";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--primary);}
.brand-mark::after{content:"";position:absolute;right:0;bottom:0;width:13px;height:13px;border-radius:2px;background:var(--accent);}
.brand-text{font-size:16px;line-height:1;display:flex;align-items:baseline;gap:1px;letter-spacing:-.01em;}
.brand-text .mono-part{font-family:var(--mono);font-size:14px;font-weight:500;letter-spacing:-.03em;}
.brand-text .cn-part{font-weight:800;font-size:17px;}

.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;font-size:14px;color:var(--ink-2);padding:6px 0;
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .26s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-link.is-active::after{width:100%;}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:250px;height:38px;padding:0 10px 0 12px;
  background:#F0EDE6;border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.command-search i{font-size:13px;color:var(--ink-3);}
.command-search input{
  flex:1;border:0;background:transparent;outline:none;font-size:13.5px;color:var(--ink);
}
.command-search input::placeholder{color:var(--ink-3);}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 1px 0 rgba(16,26,24,.06);transform:translateY(1px);}
.keycap{
  font-family:var(--mono);font-size:11px;color:var(--ink-2);
  border:1px solid var(--line-strong);border-radius:3px;
  padding:2px 5px;background:#fff;line-height:1;
}
.nav-quick{font-size:14px;color:var(--ink-2);transition:color .2s ease;}
.nav-quick:hover{color:var(--accent);}
.nav-burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
.nav-burger i{font-size:16px;color:var(--ink);}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:88%;max-width:380px;
  background:var(--card);z-index:120;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px;overflow-y:auto;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{padding:15px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;}
.drawer-nav a.is-active{color:var(--accent);font-weight:500;}
.drawer-foot{margin-top:auto;padding-top:28px;font-size:13px;color:var(--ink-2);line-height:1.9;}
.drawer-foot strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px;}
.overlay{position:fixed;inset:0;background:rgba(11,42,38,.42);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;}
.overlay.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--bg);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(16,26,24,.055) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(16,26,24,.055) 1px,transparent 1px);
  background-size:96px 96px;
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;padding:84px 0 92px;}
.hero-tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.02em;
  padding:5px 11px;border:1px solid var(--line-strong);border-radius:999px;
  color:var(--ink-2);background:rgba(255,255,255,.7);
}
.tag--accent{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}
h1.hero-title{
  font-size:clamp(34px,5.2vw,68px);
  line-height:1.06;letter-spacing:-.02em;font-weight:800;color:var(--ink);
}
h1.hero-title em{font-style:normal;color:var(--primary);}
.hero-sub{
  margin-top:18px;font-size:16.5px;line-height:1.8;color:var(--ink-2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-points{margin-top:34px;display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--line);padding-top:22px;}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);}
.hero-points i{font-size:11px;color:var(--accent);margin-top:6px;}

.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);
  border:1px solid var(--line);
}
.hero-data-card{
  position:absolute;left:-18px;bottom:-18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 20px;box-shadow:var(--shadow-2);min-width:196px;
}
.hero-data-card .num{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--primary);line-height:1.1;}
.hero-data-card .num span{font-size:14px;color:var(--accent);}
.hero-data-card .lbl{font-size:12.5px;color:var(--ink-2);margin-top:6px;}

/* ============ KPI ============ */
.kpi-band{background:var(--primary-deep);color:#EDEAE3;padding:64px 0;}
.kpi-band .eyebrow{color:#E8A97F;}
.kpi-band .eyebrow::before{background:#E8A97F;}
.kpi-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.015em;color:#F5F2EB;margin-top:14px;}
.kpi-band .kpi-intro{color:rgba(244,241,234,.6);font-size:14.5px;max-width:520px;margin-top:10px;}
.kpi-grid{margin-top:44px;}
.kpi-cell{padding:0 14px;border-left:1px solid rgba(244,241,234,.14);}
.kpi-cell:first-child{border-left:0;}
.kpi-num{
  font-family:var(--mono);font-size:clamp(34px,4.4vw,58px);font-weight:600;
  letter-spacing:-.03em;color:#F5F2EB;line-height:1;
  font-variant-numeric:tabular-nums;
}
.kpi-num .unit{font-size:.42em;color:#E8A97F;margin-left:4px;letter-spacing:0;}
.kpi-lbl{font-size:13px;color:rgba(244,241,234,.6);margin-top:14px;letter-spacing:.02em;}

/* ============ 服务矩阵 ============ */
.matrix{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start;}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .28s ease,border-color .28s ease,transform .28s ease;
}
.feature-card:hover{box-shadow:var(--shadow-2);border-color:var(--accent);transform:translateY(-2px);}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.feature-card-body{padding:30px 32px 34px;}
.feature-card-body h3{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-top:14px;}
.feature-card-body > p{color:var(--ink-2);font-size:15px;margin-top:12px;}
.feature-list{margin-top:22px;border-top:1px solid var(--line);}
.feature-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-2);
}
.feature-list li i{color:var(--accent);font-size:11px;margin-top:7px;}
.feature-list li strong{color:var(--ink);font-weight:500;}

.mini-list{display:flex;flex-direction:column;}
.mini-item{
  display:block;padding:26px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .25s ease,border-color .25s ease;
}
.mini-item:first-child{padding-top:6px;}
.mini-item:hover{border-color:var(--accent);padding-left:10px;}
.mini-idx{
  font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.06em;
}
.mini-item h3{font-size:18px;font-weight:700;margin-top:8px;letter-spacing:-.01em;}
.mini-item p{font-size:14px;color:var(--ink-2);margin-top:8px;}
.mini-item .mini-link{font-size:13px;color:var(--primary);margin-top:12px;display:inline-flex;align-items:center;gap:6px;}

/* ============ 对比 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);}
.compare-col{padding:34px 32px 36px;}
.compare-col--left{background:#F2F0EA;border-right:1px solid var(--line);}
.compare-col--right{background:var(--accent-soft);}
.compare-col h3{font-size:17px;font-weight:700;letter-spacing:.01em;display:flex;align-items:center;gap:10px;}
.compare-col h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--ink-3);}
.compare-col--right h3 .dot{background:var(--accent);}
.compare-rows{margin-top:24px;display:flex;flex-direction:column;}
.compare-rows li{
  padding:15px 0;border-top:1px solid rgba(16,26,24,.09);font-size:14.5px;color:var(--ink-2);
  display:flex;justify-content:space-between;gap:16px;align-items:baseline;
}
.compare-rows li:first-child{border-top:0;}
.compare-rows .val{font-family:var(--mono);font-size:14px;color:var(--ink-2);white-space:nowrap;}
.compare-col--right .compare-rows .val{color:var(--accent);font-weight:600;}

/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:start;}
.news-lead{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1);transition:box-shadow .28s ease,border-color .28s ease,transform .28s ease;
  display:block;
}
.news-lead:hover{box-shadow:var(--shadow-2);border-color:var(--accent);transform:translateY(-2px);}
.news-lead .thumb{overflow:hidden;aspect-ratio:16/9;background:#EDEAE3;}
.news-lead .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-lead:hover .thumb img{transform:scale(1.02);}
.news-lead .body{padding:24px 26px 28px;}
.badge{
  display:inline-block;font-size:12px;font-weight:500;letter-spacing:.02em;
  padding:4px 10px;border:1px solid var(--line-strong);border-radius:999px;color:var(--ink-2);background:#fff;
}
.badge--accent{border-color:var(--accent);color:var(--accent);}
.news-lead h3{font-size:20px;font-weight:700;line-height:1.4;margin-top:14px;letter-spacing:-.01em;transition:color .2s ease;}
.news-lead:hover h3{color:var(--accent);}
.news-lead p{font-size:14px;color:var(--ink-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
}
.news-meta time{font-family:var(--mono);font-size:12px;color:var(--ink-3);}
.news-meta .arrow{color:var(--accent);font-size:14px;transition:transform .22s ease;}
.news-lead:hover .news-meta .arrow{transform:translateX(4px);}

.news-side{display:flex;flex-direction:column;}
.news-row{
  display:grid;grid-template-columns:128px 1fr;gap:18px;
  padding:20px 0;border-bottom:1px solid var(--line);transition:padding-left .24s ease;
}
.news-row:first-child{padding-top:0;}
.news-row:hover{padding-left:8px;}
.news-row .thumb{overflow:hidden;border-radius:var(--radius-sm);aspect-ratio:16/9;background:#EDEAE3;}
.news-row .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-row:hover .thumb img{transform:scale(1.03);}
.news-row h4{font-size:16px;font-weight:500;line-height:1.5;margin-top:8px;transition:color .2s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row:hover h4{color:var(--accent);}
.news-row .row-meta{display:flex;align-items:center;gap:12px;margin-top:10px;}
.news-row .row-meta time{font-family:var(--mono);font-size:12px;color:var(--ink-3);}
.news-empty{
  border:1px dashed var(--line-strong);border-radius:var(--radius);
  padding:52px 28px;text-align:center;background:var(--card);
}
.news-empty i{font-size:26px;color:var(--line-strong);}
.news-empty p{font-size:14.5px;color:var(--ink-2);margin-top:14px;}

/* ============ 证据带 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:8px;}
.quote-card{
  background:rgba(255,255,255,.045);border:1px solid rgba(244,241,234,.14);
  border-radius:var(--radius);padding:28px 26px;
  transition:border-color .28s ease,transform .28s ease,background .28s ease;
}
.quote-card:hover{border-color:#E8A97F;transform:translateY(-2px);background:rgba(255,255,255,.07);}
.quote-card .qmark{font-family:var(--mono);font-size:22px;color:#E8A97F;line-height:1;}
.quote-card p{font-size:15px;line-height:1.85;color:rgba(244,241,234,.82);margin-top:16px;}
.quote-card .who{margin-top:20px;padding-top:16px;border-top:1px solid rgba(244,241,234,.14);font-size:13px;color:rgba(244,241,234,.6);}
.quote-card .who strong{display:block;color:#F5F2EB;font-weight:500;font-size:14px;margin-bottom:4px;}
.info-strip{
  margin-top:56px;padding-top:26px;border-top:1px solid rgba(244,241,234,.14);
  display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;
}
.info-strip span{font-size:13px;color:rgba(244,241,234,.55);letter-spacing:.02em;}
.info-strip span b{font-family:var(--mono);color:#E8A97F;font-weight:500;margin-right:6px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px;align-items:start;}
.faq-side h2{font-size:clamp(24px,2.8vw,34px);line-height:1.2;font-weight:700;letter-spacing:-.02em;margin-top:14px;}
.faq-side p{font-size:14.5px;color:var(--ink-2);margin-top:16px;max-width:340px;}
.faq-side .btn{margin-top:26px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:flex-start;gap:24px;
  padding:22px 2px;text-align:left;font-size:16.5px;font-weight:500;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  position:relative;flex:none;width:16px;height:16px;margin-top:7px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1.5px;}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 44px 24px 2px;font-size:15px;line-height:1.78;color:var(--ink-2);}

/* ============ 表单 ============ */
.contact-layout{display:grid;grid-template-columns:.86fr 1.14fr;gap:56px;align-items:start;}
.reason-list{display:flex;flex-direction:column;margin-top:28px;}
.reason-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;}
.reason-list .ridx{font-family:var(--mono);font-size:13px;color:var(--accent);flex:none;padding-top:3px;}
.reason-list strong{font-size:15.5px;font-weight:500;display:block;}
.reason-list span{font-size:14px;color:var(--ink-2);display:block;margin-top:6px;}
.contact-info{margin-top:32px;font-size:14px;color:var(--ink-2);line-height:2;}
.contact-info b{display:block;color:var(--ink);font-size:13px;letter-spacing:.04em;margin-bottom:6px;}
.contact-info .mono{font-family:var(--mono);color:var(--primary);}

.form-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 32px 30px;box-shadow:var(--shadow-1);
}
.form-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em;}
.form-card .form-hint{font-size:13.5px;color:var(--ink-2);margin-top:8px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--ink-2);letter-spacing:.02em;}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;background:#fff;
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  font-size:14.5px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,64,58,.08);
}
.form-foot{margin-top:24px;}
.form-privacy{font-size:12.5px;color:var(--ink-3);margin-top:14px;line-height:1.7;}
.form-note{margin-top:14px;font-size:13.5px;color:var(--pos);display:none;}
.form-note.is-show{display:block;}

/* ============ CTA 带 ============ */
.cta-band{background:var(--primary);color:#F5F2EB;padding:56px 0;}
.cta-band-inner{display:flex;justify-content:space-between;align-items:center;gap:36px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.015em;}
.cta-band p{font-size:14.5px;color:rgba(245,242,235,.7);margin-top:10px;max-width:560px;}
.cta-band .btn-ghost{border-color:rgba(245,242,235,.5);color:#F5F2EB;}
.cta-band .btn-ghost:hover{background:#F5F2EB;color:var(--primary);border-color:#F5F2EB;}
.cta-band .btn-primary{background:var(--accent);color:#fff;}
.cta-band .btn-primary:hover{background:#F5F2EB;color:var(--primary-deep);}

/* ============ Footer ============ */
.site-footer{background:var(--primary-deep);color:rgba(244,241,234,.7);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0;}
.footer-col{padding:0 30px;border-left:1px solid rgba(244,241,234,.12);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col h3{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:rgba(244,241,234,.5);font-weight:500;font-family:var(--mono);margin-bottom:22px;}
.footer-brand .brand-text{color:#F5F2EB;}
.footer-brand .brand-text .mono-part{color:#F5F2EB;}
.footer-claim{font-size:14px;line-height:1.85;margin-top:20px;max-width:320px;color:rgba(244,241,234,.66);}
.footer-contact{margin-top:22px;font-size:13.5px;line-height:2;color:rgba(244,241,234,.6);}
.footer-contact .mono{font-family:var(--mono);color:#E8A97F;}
.footer-icons{display:flex;gap:10px;margin-top:22px;}
.footer-icons a{
  width:34px;height:34px;border:1px solid rgba(244,241,234,.2);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:rgba(244,241,234,.7);
  transition:all .22s ease;
}
.footer-icons a:hover{border-color:#E8A97F;color:#E8A97F;transform:translateY(-2px);}
.footer-links{display:flex;flex-direction:column;gap:13px;}
.footer-links a{font-size:14px;color:rgba(244,241,234,.66);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:#E8A97F;padding-left:4px;}
.footer-bottom{
  margin-top:64px;border-top:1px solid rgba(244,241,234,.12);
  padding:24px 0 32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(244,241,234,.45);
}
.footer-bottom .mono{font-family:var(--mono);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .nav-main{gap:20px;}
  .nav-link{font-size:13.5px;}
  .command-search{width:200px;}
  .nav-quick{display:none;}
}
@media screen and (max-width:1024px){
  .section{padding:84px 0;}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:64px 0 76px;}
  .hero-media{max-width:640px;}
  .hero-data-card{left:auto;right:12px;bottom:-16px;}
  .matrix{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:36px;}
  .contact-layout{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:44px;}
  .footer-col{padding:0 22px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
}
@media screen and (max-width:900px){
  .nav-main{display:none;}
  .command-search{display:none;}
  .nav-burger{display:flex;}
  .quote-grid{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .compare-col--left{border-right:0;border-bottom:1px solid var(--line);}
  .kpi-cell{border-left:0;padding:0 0 28px;border-bottom:1px solid rgba(244,241,234,.14);}
  .kpi-cell:last-child{border-bottom:0;padding-bottom:0;}
}
@media screen and (max-width:640px){
  :root{--pad:18px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:34px;}
  .hero-inner{padding:48px 0 64px;}
  h1.hero-title{font-size:clamp(30px,8.4vw,42px);}
  .hero-actions .btn{width:100%;}
  .kpi-band{padding:52px 0;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:26px 20px 24px;}
  .feature-card-body{padding:24px 20px 28px;}
  .quote-card{padding:24px 20px;}
  .news-row{grid-template-columns:1fr;gap:12px;}
  .news-row .thumb{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{padding:0;border-left:0;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
}

/* roulang page: article */
:root{
  --ink:#101A18;
  --ink-soft:#3A4441;
  --muted:#6B6A64;
  --paper:#F7F5F0;
  --paper-2:#F1EEE7;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#CFC8BA;
  --primary:#12403A;
  --primary-deep:#0B2A26;
  --accent:#C0602B;
  --accent-soft:#F3E3D8;
  --ok:#2E7D5B;
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 0 rgba(16,26,24,.04);
  --shadow-2:0 12px 32px rgba(16,26,24,.08);
  --mono:'IBM Plex Mono','Noto Sans SC',ui-monospace,monospace;
  --sans:'Noto Sans SC','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container-narrow{max-width:960px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(16,26,24,.07);}
.nav-inner{
  max-width:1280px;margin:0 auto;height:64px;padding:0 24px;
  display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:20px;height:20px;border:2px solid var(--primary);border-radius:50%;
  display:inline-block;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:-5px;bottom:-5px;width:11px;height:11px;
  background:var(--accent);border-radius:1px;
}
.brand-text{display:inline-flex;align-items:baseline;line-height:1;color:var(--ink);}
.mono-part{font-family:var(--mono);font-weight:500;font-size:16px;letter-spacing:-.02em;}
.cn-part{font-weight:800;font-size:16px;margin-left:3px;letter-spacing:.04em;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:14px;}
.nav-link{
  position:relative;font-size:14px;color:var(--ink-soft);padding:6px 0;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.is-active::after{width:100%;}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:16px;}
.command-search{
  display:flex;align-items:center;gap:8px;width:246px;padding:7px 10px;
  background:#EFEBE2;border:1px solid transparent;border-radius:var(--radius);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.command-search i{font-size:12px;color:var(--muted);}
.command-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:13px;color:var(--ink);
}
.command-search input::placeholder{color:#9A968C;}
.command-search:focus-within{
  background:#fff;border-color:var(--primary);transform:translateY(1px);
  box-shadow:0 3px 0 rgba(18,64,58,.10);
}
.keycap{
  font-family:var(--mono);font-size:11px;color:var(--muted);background:#fff;
  border:1px solid var(--line);border-radius:3px;padding:1px 5px;flex:0 0 auto;
}
.nav-quick{font-size:14px;color:var(--ink-soft);border-bottom:2px solid transparent;transition:.2s;}
.nav-quick:hover{color:var(--accent);border-bottom-color:var(--accent);}
.nav-burger{
  display:none;background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  width:38px;height:36px;color:var(--ink);
}
.nav-burger:hover{border-color:var(--primary);color:var(--primary);}

.btn{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  padding:12px 20px;border-radius:var(--radius-sm);border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-arrow{transition:transform .22s ease;}
.btn-primary{background:var(--primary);color:#F7F5F0;}
.btn-primary:hover{background:var(--accent);}
.btn-primary:hover .btn-arrow{transform:translateX(3px);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);}
.btn-sm{padding:8px 14px;font-size:13px;}
.btn-block{width:100%;justify-content:center;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:88%;max-width:360px;background:var(--paper);
  border-left:1px solid var(--line);z-index:200;transform:translateX(102%);
  transition:transform .3s ease;padding:22px;overflow-y:auto;
  box-shadow:-18px 0 40px rgba(16,26,24,.12);
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{background:transparent;border:1px solid var(--line);border-radius:var(--radius);width:36px;height:34px;}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-soft);}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary);font-weight:700;}
.drawer-search{display:flex;align-items:center;gap:8px;margin:20px 0;padding:9px 12px;background:#EFEBE2;border-radius:var(--radius);}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-foot{margin-top:22px;font-size:13px;color:var(--muted);line-height:1.9;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,38,.42);z-index:190;opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ---------- reading progress ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:150;transition:width .1s linear;}

/* ---------- article head ---------- */
.article-hero{
  position:relative;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(247,245,240,.94),rgba(247,245,240,.99)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.article-hero-inner{padding:40px 0 44px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:26px;}
.breadcrumb a{color:var(--muted);transition:color .2s;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--ink-soft);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;
  color:var(--primary);border:1px solid var(--line-strong);border-radius:999px;
  padding:4px 12px;background:rgba(255,255,255,.7);
}
.article-title{
  font-size:clamp(28px,3.6vw,46px);line-height:1.16;letter-spacing:-.02em;font-weight:800;
  margin:18px 0 16px;max-width:24ch;
}
.article-lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:64ch;}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;background:var(--line-strong);border-radius:50%;}

/* ---------- article body ---------- */
.article-shell{padding:56px 0 12px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:56px;align-items:start;}
.article-body{font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:760px;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.3;color:var(--ink);
  margin:40px 0 12px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;background:var(--accent);
}
.article-body h3{font-size:20px;color:var(--ink);margin:28px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:#FBF9F5;color:var(--ink);font-size:16px;
}
.article-body img{border-radius:var(--radius-sm);margin:22px 0;height:auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption,figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top;}
.article-body th{background:#F3F1EC;font-weight:700;color:var(--ink);}
.article-body pre{
  background:#F3F1EC;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;overflow-x:auto;font-family:var(--mono);font-size:13.5px;line-height:1.7;
}
.article-body code{font-family:var(--mono);font-size:.92em;background:#F3F1EC;padding:1px 5px;border-radius:2px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  padding:52px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:26px;color:var(--line-strong);}
.empty-state h2{font-size:20px;margin:16px 0 8px;color:var(--ink);}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.side-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.side-title{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;margin-bottom:14px;}
.side-list{display:flex;flex-direction:column;}
.side-item{padding:12px 0;border-top:1px solid var(--line);display:flex;gap:12px;align-items:flex-start;}
.side-item:first-child{border-top:0;padding-top:0;}
.side-item .idx{font-family:var(--mono);font-size:12px;color:var(--accent);padding-top:3px;}
.side-item h4{font-size:14px;font-weight:600;line-height:1.55;color:var(--ink);transition:color .2s;}
.side-item:hover h4{color:var(--accent);}
.side-cta{background:var(--primary);border-color:var(--primary);color:#EFE9DF;}
.side-cta .side-title{color:rgba(239,233,223,.6);}
.side-cta p{font-size:13.5px;line-height:1.8;color:rgba(239,233,223,.78);margin-bottom:16px;}
.side-cta .btn-ghost{border-color:rgba(239,233,223,.5);color:#F7F5F0;}
.side-cta .btn-ghost:hover{background:var(--accent);border-color:var(--accent);color:#fff;}

/* ---------- prev / next ---------- */
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-top:48px;padding-top:28px;border-top:1px solid var(--line);
}
.pager a{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);
  padding:18px 20px;display:flex;flex-direction:column;gap:8px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.pager a:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.pager .dir{font-size:12px;letter-spacing:.1em;color:var(--muted);}
.pager .ttl{font-size:15px;font-weight:600;color:var(--ink);}
.pager .arrow{font-family:var(--mono);font-size:13px;color:var(--accent);}
.pager .next{align-items:flex-end;text-align:right;}

/* ---------- related ---------- */
.section{padding:84px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;}
.section-kicker{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--accent);margin-bottom:10px;}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.2;color:var(--ink);}
.link-more{font-size:14px;color:var(--primary);border-bottom:2px solid var(--accent);padding-bottom:2px;transition:.2s;}
.link-more:hover{color:var(--accent);}
.related-list{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.related-row{
  display:grid;grid-template-columns:96px 1fr auto;gap:24px;align-items:center;
  padding:20px 24px;border-top:1px solid var(--line);transition:background .22s ease;
}
.related-row:first-child{border-top:0;}
.related-row:hover{background:#FBF9F5;}
.related-row .num{font-family:var(--mono);font-size:22px;color:var(--line-strong);}
.related-row:hover .num{color:var(--accent);}
.related-row h3{font-size:17px;line-height:1.5;color:var(--ink);transition:color .2s;}
.related-row:hover h3{color:var(--accent);}
.related-row p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7;}
.related-row .go{font-family:var(--mono);font-size:16px;color:var(--accent);transition:transform .22s ease;}
.related-row:hover .go{transform:translateX(4px);}
.related-tag{
  display:inline-block;font-size:12px;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:2px 10px;margin-bottom:8px;
}
.back-row{margin-top:26px;}
.back-row a{font-size:14px;color:var(--primary);border-bottom:2px solid var(--accent);padding-bottom:2px;}
.back-row a:hover{color:var(--accent);}

/* ---------- CTA strip ---------- */
.cta-band{background:var(--primary-deep);color:#EFE9DF;}
.cta-band-inner{
  padding:64px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#F7F5F0;line-height:1.3;}
.cta-band p{font-size:14.5px;color:rgba(239,233,223,.72);margin-top:12px;max-width:56ch;line-height:1.8;}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{border-color:rgba(239,233,223,.45);color:#F7F5F0;}
.cta-band .btn-ghost:hover{background:rgba(239,233,223,.12);border-color:#EFE9DF;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-deep);color:rgba(247,245,240,.7);padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0;}
.footer-col{padding:0 24px;border-left:1px solid rgba(247,245,240,.12);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand .brand-text{color:#F7F5F0;}
.footer-brand .brand-mark{border-color:#F7F5F0;}
.footer-claim{font-size:13.5px;line-height:1.85;color:rgba(247,245,240,.66);margin:16px 0 18px;max-width:36ch;}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(247,245,240,.6);}
.footer-contact .mono{color:rgba(247,245,240,.85);}
.footer-icons{display:flex;gap:10px;margin-top:18px;}
.footer-icons a{
  width:34px;height:34px;border:1px solid rgba(247,245,240,.22);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;font-size:13px;color:rgba(247,245,240,.75);
  transition:.22s;
}
.footer-icons a:hover{border-color:var(--accent);color:var(--accent);}
.site-footer h3{font-size:13px;letter-spacing:.1em;color:#F7F5F0;font-weight:700;margin-bottom:16px;text-transform:uppercase;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:rgba(247,245,240,.68);transition:color .2s,padding-left .2s;}
.footer-links a:hover{color:var(--accent);padding-left:3px;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(247,245,240,.12);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:rgba(247,245,240,.5);
}

/* ---------- motion ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.fade-up.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .fade-up{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .nav-main{gap:20px;}
  .command-search{width:200px;}
  .article-grid{grid-template-columns:minmax(0,1fr) 250px;gap:38px;}
}
@media (max-width:1024px){
  .nav-main,.command-search,.nav-quick{display:none;}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;}
  .article-grid{grid-template-columns:1fr;gap:34px;}
  .article-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:36px;}
  .footer-col{padding:0 18px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
  .footer-col:nth-child(even){padding-right:0;}
}
@media (max-width:900px){
  .section{padding:64px 0;}
  .article-hero-inner{padding:30px 0 34px;}
  .article-shell{padding:42px 0 8px;}
  .related-row{grid-template-columns:56px 1fr auto;gap:16px;padding:18px;}
}
@media (max-width:640px){
  .nav-inner{height:56px;padding:0 16px;gap:12px;}
  .container{padding:0 16px;}
  .article-title{font-size:30px;max-width:none;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .pager .next{align-items:flex-start;text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{padding:0;border-left:0;}
  .site-footer{padding:48px 0 22px;}
  .cta-band-inner{padding:48px 0;}
  .related-row{grid-template-columns:1fr;gap:10px;}
  .related-row .num{font-size:16px;}
  .related-row .go{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .article-body table{font-size:14px;}
}

/* roulang page: category1 */
:root{
  --brand:#12403A;
  --brand-deep:#0B2A26;
  --accent:#C0602B;
  --accent-soft:#F3E3D8;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --line:#E3DED4;
  --ink:#101A18;
  --ink-2:#6B6A64;
  --pos:#2E7D5B;
  --r:4px;
  --r-sm:2px;
  --sh-1:0 1px 0 rgba(16,26,24,.04);
  --sh-2:0 12px 32px rgba(16,26,24,.08);
  --container:1240px;
  --sans:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#F7F5F0;padding:10px 16px;z-index:200;}
.skip-link:focus{left:12px;top:12px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,26,24,.07);}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:64px;display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{position:relative;width:22px;height:22px;display:inline-block;flex:none;}
.brand-mark::before{content:"";position:absolute;left:0;top:0;width:18px;height:18px;border:2px solid var(--brand);border-radius:2px;}
.brand-mark::after{content:"";position:absolute;right:0;bottom:0;width:11px;height:11px;border-radius:50%;background:var(--accent);}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;line-height:1;}
.brand-text .mono-part{font-family:var(--mono);font-size:15px;font-weight:500;letter-spacing:-.01em;color:var(--brand);}
.brand-text .cn-part{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--ink);}
.nav-main{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  font-size:14px;color:var(--ink-2);transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:16px;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:264px;height:36px;padding:0 10px;
  background:#EFEBE3;border:1px solid #EFEBE3;border-radius:var(--r);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search i{font-size:12px;color:var(--ink-2);}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;font-size:13px;outline:none;
}
.command-search input::placeholder{color:#9A968D;}
.command-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 1px 0 rgba(16,26,24,.1);}
.keycap{
  font-family:var(--mono);font-size:11px;color:var(--ink-2);
  border:1px solid var(--line);background:#fff;border-radius:3px;padding:1px 5px;flex:none;
}
.nav-quick{font-size:14px;color:var(--ink-2);border-bottom:2px solid transparent;padding-bottom:2px;transition:.2s ease;}
.nav-quick:hover{color:var(--accent);border-bottom-color:var(--accent);}
.nav-burger{
  display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);
  cursor:pointer;color:var(--ink);font-size:15px;
}
.nav-burger:hover{border-color:var(--accent);color:var(--accent);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:14px;font-weight:600;cursor:pointer;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-arrow{transition:transform .22s ease;}
.btn-primary{background:var(--brand);color:#F7F5F0;}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-primary:hover .btn-arrow{transform:translateX(2px);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--paper);color:var(--brand);}
.btn-sm{padding:9px 15px;font-size:13px;}
.btn-block{width:100%;}

/* ============ 抽屉菜单 ============ */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:88%;max-width:370px;
  background:var(--card);z-index:90;padding:22px 22px 40px;
  transform:translateX(103%);transition:transform .32s ease;
  overflow-y:auto;box-shadow:-16px 0 40px rgba(11,42,38,.14);
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;color:var(--ink);}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-search{margin:20px 0;width:100%;}
.drawer-nav{display:grid;border-top:1px solid var(--line);margin-bottom:20px;}
.drawer-nav a{
  padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.is-active{color:var(--accent);font-weight:600;}
.drawer-nav a:hover{color:var(--accent);}
.drawer-contact{margin-top:22px;font-size:13px;line-height:1.9;color:var(--ink-2);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,38,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ============ 分类页头 ============ */
.hero-cat{position:relative;overflow:hidden;padding:48px 0 84px;border-bottom:1px solid var(--line);}
.hero-cat::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(16,26,24,.055) 1px,transparent 1px),linear-gradient(to bottom,rgba(16,26,24,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:24px;flex-wrap:wrap;}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.55;}
.crumb .current{color:var(--ink);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 11px;margin-bottom:18px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
}
.eyebrow i{font-size:11px;color:var(--accent);}
h1{font-size:clamp(34px,5.2vw,64px);line-height:1.06;letter-spacing:-.02em;font-weight:800;}
.hero-lead{margin-top:16px;max-width:54ch;font-size:17px;color:var(--ink-2);}
.hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap;}
.dot-list{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);display:grid;gap:10px;}
.dot-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.dot-list li::before{content:"";width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent);flex:none;}
.hero-media{position:relative;}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm);}
.data-card{
  position:absolute;left:-16px;bottom:-20px;min-width:208px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:16px 18px;box-shadow:var(--sh-2);
}
.data-card .n{font-family:var(--mono);font-size:26px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.data-card .n small{font-size:13px;font-weight:500;color:var(--ink-2);margin-left:4px;}
.data-card .l{font-size:12px;color:var(--ink-2);margin-top:6px;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--tight{padding:64px 0 88px;}
.section--alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--dark{background:var(--brand-deep);color:#EDE9E1;}
.sec-head{max-width:760px;margin-bottom:52px;}
.sec-eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;display:block;margin-bottom:14px;}
h2{font-size:clamp(26px,3.4vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.01em;}
h3{font-size:19px;font-weight:600;line-height:1.4;}
.sec-desc{margin-top:16px;font-size:16px;color:var(--ink-2);}

/* ============ 图文交错 ============ */
.zig{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;
}
.zig + .zig{border-top:1px solid var(--line);}
.zig:first-of-type{padding-top:0;}
.zig.is-flipped .zig-media{order:-1;}
.zig-body .num-marker{
  display:block;font-family:var(--mono);font-size:13px;letter-spacing:.14em;
  color:var(--accent);margin-bottom:12px;
}
.zig-body p{margin-top:14px;color:var(--ink-2);}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--ink);}
.check-list li i{color:var(--accent);font-size:12px;margin-top:8px;flex:none;}
.zig-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-sm);transition:transform .4s ease;}
.zig-media:hover img{transform:scale(1.02);}
.zig-media figcaption{margin-top:10px;font-size:13px;color:var(--ink-2);}

/* ============ 场景条目行 ============ */
.rows{border-top:1px solid var(--line);}
.row-item{
  display:grid;grid-template-columns:72px 250px 1fr;gap:24px;align-items:baseline;
  padding:26px 0;border-bottom:1px solid var(--line);transition:background .22s ease,padding-left .22s ease;
}
.row-item:hover{background:#FBFAF7;padding-left:10px;}
.row-item .idx{font-family:var(--mono);font-size:19px;color:var(--accent);font-variant-numeric:tabular-nums;}
.row-item h3{font-size:18px;}
.row-item p{font-size:15px;color:var(--ink-2);}

/* ============ 数据带 ============ */
.kpi-band{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(247,245,240,.16);}
.kpi-item{padding:32px 26px 8px;border-left:1px solid rgba(247,245,240,.16);}
.kpi-item:first-child{border-left:0;padding-left:0;}
.kpi-num{font-family:var(--mono);font-size:clamp(30px,4vw,46px);font-weight:600;color:#F7F5F0;line-height:1.1;font-variant-numeric:tabular-nums;}
.kpi-unit{font-size:14px;color:rgba(247,245,240,.7);margin-left:6px;font-family:var(--sans);}
.kpi-label{margin-top:10px;font-size:13px;color:rgba(247,245,240,.62);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;cursor:pointer;
  color:var(--ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-q .sign{font-family:var(--mono);font-size:18px;line-height:1.4;color:var(--accent);transition:transform .2s ease;flex:none;}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.75;color:var(--ink-2);}

/* ============ 相关分类 ============ */
.rel-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--accent);}
.rel-item .t{font-size:16px;font-weight:600;display:flex;align-items:center;gap:10px;}
.rel-item .tag{
  font-size:12px;padding:2px 8px;border:1px solid var(--accent);color:var(--accent);border-radius:2px;
}
.rel-item .d{font-size:13px;color:var(--ink-2);margin-top:6px;}
.rel-item .arw{color:var(--accent);flex:none;}

/* ============ CTA 带 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  background:var(--brand);color:#F7F5F0;border-radius:var(--r);padding:48px 52px;
}
.cta-band h2{color:#F7F5F0;font-size:clamp(22px,2.6vw,30px);}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(247,245,240,.72);max-width:56ch;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#EDE9E1;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;padding:72px 0 48px;}
.footer-col{padding:0 32px;border-left:1px solid rgba(247,245,240,.12);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-col h3{font-size:13px;letter-spacing:.1em;font-weight:600;color:rgba(247,245,240,.55);margin-bottom:18px;}
.footer-col .brand-text .mono-part{color:#F7F5F0;}
.footer-col .brand-text .cn-part{color:#F7F5F0;}
.footer-claim{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(247,245,240,.7);max-width:34ch;}
.footer-contact{margin-top:18px;font-size:13px;line-height:1.9;color:rgba(247,245,240,.62);}
.footer-contact .mono{color:rgba(247,245,240,.8);}
.footer-icons{display:flex;gap:10px;margin-top:20px;}
.footer-icons a{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,245,240,.22);border-radius:var(--r-sm);
  color:rgba(247,245,240,.75);transition:border-color .2s ease,color .2s ease;
}
.footer-icons a:hover{border-color:var(--accent);color:var(--accent);}
.footer-links a{display:block;font-size:14px;color:rgba(247,245,240,.7);padding:6px 0;transition:color .2s ease;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(247,245,240,.12);
  font-size:13px;color:rgba(247,245,240,.55);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-link{gap:0;}
  .nav-main{gap:20px;}
  .command-search{width:210px;}
  .kpi-band{grid-template-columns:repeat(2,1fr);}
  .kpi-item{padding:28px 20px;border-left:0;border-top:1px solid rgba(247,245,240,.16);}
  .kpi-item:nth-child(-n+2){border-top:0;}
  .kpi-item:nth-child(odd){padding-left:0;}
}
@media (max-width:1024px){
  .nav-main,.command-search,.nav-quick{display:none;}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-media{max-width:560px;}
  .data-card{left:auto;right:16px;bottom:-18px;}
  .zig{grid-template-columns:1fr;gap:30px;}
  .zig.is-flipped .zig-media{order:-1;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .row-item{grid-template-columns:56px 190px 1fr;gap:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0;padding:56px 0 36px;}
  .footer-col:nth-child(3){border-left:0;padding-left:0;}
  .footer-col{padding:0 24px;}
}
@media (max-width:900px){
  .section{padding:72px 0;}
  .section--tight{padding:52px 0 68px;}
  .rel-list{grid-template-columns:1fr;}
  .cta-band{padding:36px 30px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .nav-inner{padding:0 18px;height:56px;gap:14px;}
  .nav-burger{width:36px;height:36px;}
  h1{font-size:clamp(30px,8.4vw,40px);}
  .hero-cat{padding:32px 0 64px;}
  .hero-media{max-width:100%;}
  .data-card{position:static;margin-top:16px;box-shadow:var(--sh-1);}
  .section{padding:56px 0;}
  .sec-head{margin-bottom:34px;}
  .zig{padding:38px 0;}
  .row-item{grid-template-columns:1fr;gap:6px;}
  .row-item .idx{font-size:15px;}
  .kpi-band{grid-template-columns:1fr 1fr;}
  .kpi-item{padding:22px 16px;}
  .faq-q{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-col{border-left:0;padding:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .cta-band{padding:30px 22px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category2 */
:root{
  --ink:#101A18;
  --ink-2:#6B6A64;
  --ink-3:#9A968E;
  --paper:#F7F5F0;
  --paper-2:#F0EDE6;
  --card:#FFFFFF;
  --line:#E3DED4;
  --line-strong:#CFC8BA;
  --brand:#12403A;
  --brand-deep:#0B2A26;
  --accent:#C0602B;
  --accent-soft:#F3E3D8;
  --pos:#2E7D5B;
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 0 rgba(16,26,24,.04);
  --shadow-2:0 12px 32px rgba(16,26,24,.08);
  --container:1240px;
  --gap:24px;
  --sans:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
table{border-collapse:collapse;width:100%;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
::selection{background:var(--accent-soft);color:var(--brand-deep);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(16,26,24,.04),0 8px 24px rgba(16,26,24,.07);}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--brand);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:-2px;bottom:-2px;
  width:11px;height:11px;
  background:var(--accent);
  border:2px solid var(--paper);
  border-radius:1px;
}
.brand-text{display:inline-flex;align-items:baseline;font-size:15px;white-space:nowrap;}
.mono-part{font-family:var(--mono);font-size:14px;letter-spacing:-.03em;color:var(--brand);}
.cn-part{font-weight:700;color:var(--ink);margin-left:1px;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:250px;
  padding:7px 10px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.command-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 2px 0 rgba(18,64,58,.12);
  transform:translateY(1px);
}
.command-search i{font-size:12px;color:var(--ink-3);}
.command-search input{
  flex:1 1 auto;min-width:0;
  border:0;background:transparent;outline:none;
  font-size:13px;color:var(--ink);
}
.command-search input::placeholder{color:var(--ink-3);}
.keycap{
  font-family:var(--mono);font-size:11px;line-height:1;
  padding:3px 5px;
  border:1px solid var(--line-strong);
  border-radius:3px;
  color:var(--ink-3);
  background:var(--card);
  white-space:nowrap;
}
.nav-quick{font-size:13px;color:var(--ink-2);border-bottom:1px solid transparent;white-space:nowrap;}
.nav-quick:hover{color:var(--accent);border-bottom-color:var(--accent);}
.nav-burger{
  display:none;
  width:38px;height:38px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  background:var(--card);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-burger:hover{background:var(--accent-soft);border-color:var(--accent);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;line-height:1.2;
  padding:12px 20px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-arrow{display:inline-block;transition:transform .2s ease;}
.btn-primary{background:var(--brand);color:#F7F5F0;}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-primary:hover .btn-arrow{transform:translateX(2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line-strong);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--brand-deep);}
.btn-sm{padding:8px 14px;font-size:13px;}
.btn-block{width:100%;}
.btn-link{
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:2px solid var(--accent);
  padding-bottom:2px;
  display:inline-flex;align-items:center;gap:6px;
}
.btn-link:hover{color:var(--accent);border-bottom-width:3px;}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--ink-3);font-size:12px;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center right;
  opacity:.16;
  filter:grayscale(.35) contrast(1.05);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,var(--paper) 26%,rgba(247,245,240,.72) 60%,rgba(247,245,240,.35) 100%);
  pointer-events:none;
}
.page-hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
  gap:64px;
  align-items:end;
  padding-top:64px;
  padding-bottom:72px;
}
.page-hero .breadcrumb{margin-bottom:26px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);
  background:var(--accent-soft);
  border:1px solid rgba(192,96,43,.28);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:20px;
}
.badge-plain{
  display:inline-flex;align-items:center;
  font-size:12px;color:var(--ink-2);
  border:1px solid var(--line-strong);
  border-radius:999px;
  padding:3px 11px;
  background:var(--card);
}
.page-hero h1{
  font-size:clamp(34px,5vw,62px);
  line-height:1.06;
  letter-spacing:-.02em;
  font-weight:800;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:620px;
  margin-bottom:28px;
}
.hero-points{display:flex;flex-direction:column;gap:12px;}
.hero-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--ink-2);
}
.hero-points li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  background:var(--accent);
  border-radius:1px;
}
.hero-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:28px 26px;
}
.hero-card-title{
  font-size:12px;
  letter-spacing:.12em;
  color:var(--ink-3);
  text-transform:uppercase;
  font-family:var(--mono);
  margin-bottom:20px;
}
.kpi-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
}
.kpi-row:last-of-type{border-bottom:0;}
.kpi-label{font-size:13px;color:var(--ink-2);}
.kpi-value{
  font-family:var(--mono);
  font-size:26px;
  font-weight:600;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.kpi-value .unit{font-size:12px;color:var(--ink-3);margin-left:4px;font-weight:400;}
.hero-card-note{
  margin-top:18px;
  font-size:12px;
  color:var(--ink-3);
  line-height:1.7;
  border-top:1px dashed var(--line-strong);
  padding-top:16px;
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{background:var(--brand-deep);color:rgba(247,245,240,.72);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--accent);
  margin-bottom:12px;
  display:block;
}
.section-head h2{
  font-size:clamp(26px,3.1vw,38px);
  line-height:1.18;
  letter-spacing:-.01em;
  font-weight:700;
  margin-bottom:14px;
}
.section-head p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.section-dark .section-head h2{color:#F7F5F0;}
.section-dark .section-head p{color:rgba(247,245,240,.68);}

/* ---------- overview ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:64px;
  align-items:start;
}
.lead-text p{
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  margin-bottom:20px;
}
.lead-text p strong{color:var(--ink);font-weight:600;}
.lead-rule{
  margin:28px 0;
  height:1px;
  background:var(--line);
}
.lead-figure{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow-1);
}
.lead-figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  transition:transform .4s ease;
}
.lead-figure:hover img{transform:scale(1.02);}
.lead-figure figcaption{
  font-size:12px;
  color:var(--ink-3);
  padding:12px 16px;
  border-top:1px solid var(--line);
  line-height:1.6;
}

/* ---------- anchor layout ---------- */
.anchor-layout{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:96px;
  border-left:1px solid var(--line-strong);
  padding-left:18px;
}
.anchor-nav-title{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--ink-3);
  margin-bottom:16px;
}
.anchor-nav a{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  padding:7px 0;
  border-bottom:1px solid transparent;
  transition:color .2s ease,padding-left .2s ease;
}
.anchor-nav a:hover{color:var(--accent);padding-left:5px;}
.anchor-nav a.is-current{color:var(--brand);font-weight:600;}
.anchor-nav-foot{
  margin-top:22px;
  padding-top:18px;
  border-top:1px dashed var(--line-strong);
  font-size:12px;
  color:var(--ink-3);
  line-height:1.7;
}

.doc-block{margin-bottom:64px;}
.doc-block:last-child{margin-bottom:0;}
.doc-head{
  display:flex;
  align-items:flex-start;
  gap:18px;
  margin-bottom:22px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line-strong);
}
.doc-index{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:.06em;
  padding-top:5px;
  flex:0 0 auto;
}
.doc-head h2{
  font-size:clamp(21px,2.1vw,26px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:8px;
}
.doc-head p{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:760px;}

/* ---------- tables ---------- */
.table-wrap{
  overflow-x:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:760px;font-size:14px;background:var(--card);}
.data-table th,
.data-table td{
  padding:14px 18px;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--line);
  line-height:1.7;
}
.data-table thead th{
  background:var(--paper-2);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--ink-2);
  white-space:nowrap;
  border-bottom:1px solid var(--line-strong);
}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr:hover td{background:#FBF9F5;}
.data-table td:first-child{
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
}
.data-table th:first-child,
.data-table td:first-child{
  position:sticky;
  left:0;
  z-index:2;
  background:var(--card);
  box-shadow:1px 0 0 var(--line);
}
.data-table thead th:first-child{background:var(--paper-2);z-index:3;}
.data-table tbody tr:hover td:first-child{background:#FBF9F5;}
.data-table .num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  font-weight:500;
}
.data-table .tag-pos{color:var(--pos);font-weight:600;}
.data-table .tag-warn{color:var(--accent);font-weight:600;}

.table-caption{
  display:flex;flex-wrap:wrap;gap:10px 18px;
  font-size:12.5px;
  color:var(--ink-3);
  margin-top:14px;
}
.table-caption span{display:inline-flex;align-items:center;gap:6px;}
.table-caption i{color:var(--accent);font-size:11px;}

/* ---------- related ---------- */
.rel-head{
  display:flex;flex-wrap:wrap;gap:16px;
  align-items:flex-end;justify-content:space-between;
  margin-bottom:36px;
}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gap);
}
.rel-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--accent);
}
.rel-card-media{overflow:hidden;background:var(--paper-2);}
.rel-card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .4s ease;
}
.rel-card:hover .rel-card-media img{transform:scale(1.02);}
.rel-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.rel-card-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.45;
  margin:12px 0 10px;
}
.rel-card:hover .rel-card-body h3{color:var(--accent);}
.rel-card-body p{font-size:13.5px;color:var(--ink-2);line-height:1.75;flex:1 1 auto;}
.rel-card-foot{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;font-weight:600;color:var(--brand);
}
.rel-card:hover .rel-card-foot{color:var(--accent);}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,.7fr) minmax(0,1.6fr);
  gap:64px;
  align-items:start;
}
.faq-side h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.faq-side p{font-size:14.5px;color:var(--ink-2);line-height:1.85;margin-bottom:24px;}
.faq-list{border-top:1px solid var(--line-strong);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:20px 0;
  font-size:16.5px;
  font-weight:600;
  line-height:1.55;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary::after{
  content:"+";
  font-family:var(--mono);
  font-size:22px;
  line-height:1;
  color:var(--accent);
  flex:0 0 auto;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-ans{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-2);
  max-width:820px;
}

/* ---------- inquiry ---------- */
.inquiry-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:64px;
  align-items:start;
}
.reason-list{display:flex;flex-direction:column;gap:26px;margin-bottom:34px;}
.reason-list li{display:flex;gap:16px;}
.reason-num{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  padding-top:3px;
  flex:0 0 32px;
}
.reason-list h3{font-size:16px;font-weight:700;margin-bottom:6px;line-height:1.5;}
.reason-list p{font-size:14px;color:var(--ink-2);line-height:1.8;}
.contact-box{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
}
.contact-box dl{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;font-size:14px;}
.contact-box dt{color:var(--ink-3);font-size:13px;}
.contact-box dd{margin:0;color:var(--ink);font-weight:500;}

.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:34px 32px 30px;
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:24px;}
.form-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 20px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field .req{color:var(--accent);margin-left:2px;}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:11px 14px;
  background:#FCFBF8;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  font-size:14px;
  line-height:1.5;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:var(--card);
  box-shadow:0 0 0 2px rgba(18,64,58,.12);
}
.field textarea{resize:vertical;min-height:110px;}
.form-privacy{
  font-size:12px;
  color:var(--ink-3);
  line-height:1.7;
  margin-top:16px;
}
.form-privacy a{color:var(--brand);border-bottom:1px solid var(--line-strong);}
.form-privacy a:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--brand);
  color:rgba(247,245,240,.8);
  border-top:1px solid var(--brand-deep);
}
.cta-band-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:36px 0;
}
.cta-band h2{
  font-size:clamp(19px,2.2vw,24px);
  font-weight:700;
  color:#F7F5F0;
  line-height:1.4;
  letter-spacing:-.01em;
}
.cta-band p{font-size:13.5px;color:rgba(247,245,240,.68);margin-top:6px;}
.cta-band .btn-primary{background:var(--accent);color:#fff;}
.cta-band .btn-primary:hover{background:#F7F5F0;color:var(--brand-deep);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(247,245,240,.7);
  border-top:1px solid rgba(247,245,240,.08);
  font-size:13.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:0;
  padding:64px 0 48px;
}
.footer-col{padding:0 28px;border-left:1px solid rgba(247,245,240,.1);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-col h3{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:#F7F5F0;
  margin-bottom:18px;
}
.footer-brand .brand-text{margin-bottom:16px;display:inline-flex;}
.footer-brand .mono-part{color:#F7F5F0;}
.footer-brand .cn-part{color:#F7F5F0;}
.footer-claim{font-size:13.5px;line-height:1.85;color:rgba(247,245,240,.66);margin-bottom:20px;max-width:340px;}
.footer-contact{font-size:13px;line-height:2;color:rgba(247,245,240,.6);}
.footer-contact .mono{font-size:12.5px;color:rgba(247,245,240,.82);}
.footer-icons{display:flex;gap:10px;margin-top:20px;}
.footer-icons a{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,245,240,.18);
  border-radius:var(--radius-sm);
  color:rgba(247,245,240,.72);
  font-size:13px;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.footer-icons a:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:rgba(247,245,240,.7);font-size:13.5px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  padding:22px 0 28px;
  border-top:1px solid rgba(247,245,240,.1);
  font-size:12.5px;
  color:rgba(247,245,240,.5);
}
.footer-bottom .mono{color:rgba(247,245,240,.42);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(11,42,38,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:300;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:88%;
  max-width:380px;
  height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .3s ease;
  z-index:310;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding:20px 22px 32px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:34px;height:34px;
  border:1px solid var(--line-strong);
  background:var(--card);
  border-radius:var(--radius-sm);
  cursor:pointer;
  color:var(--ink-2);
}
.drawer-close:hover{background:var(--accent-soft);border-color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0;border-bottom:1px solid var(--line);}
.drawer-nav a{
  font-size:15px;
  padding:12px 0;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-search{width:100%;margin:18px 0;}
.drawer-contact{
  margin-top:22px;
  font-size:13px;
  line-height:2;
  color:var(--ink-2);
}

/* ---------- motion ---------- */
.fade-up{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease-out,transform .5s ease-out;
}
.fade-up.is-visible{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .fade-up{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .nav-main{gap:20px;}
  .nav-link{font-size:13.5px;}
  .command-search{width:200px;}
  .nav-quick{display:none;}
  .page-hero-grid{gap:44px;}
}
@media (max-width:1024px){
  .section{padding:76px 0;}
  .page-hero-grid{
    grid-template-columns:minmax(0,1fr);
    gap:38px;
    padding-top:48px;
    padding-bottom:56px;
  }
  .hero-card{max-width:520px;}
  .overview-grid{grid-template-columns:minmax(0,1fr);gap:40px;}
  .anchor-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .anchor-nav{position:static;border-left:0;border-top:1px solid var(--line-strong);padding-left:0;padding-top:18px;}
  .anchor-nav a{display:inline-block;padding:6px 14px 6px 0;}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .inquiry-grid{grid-template-columns:minmax(0,1fr);gap:40px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
  .footer-col:nth-child(even){padding-right:0;}
}
@media (max-width:900px){
  .nav-main,.nav-right .command-search,.nav-right .btn{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-inner{height:56px;padding:0 18px;}
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .doc-block{margin-bottom:48px;}
  .form-row{grid-template-columns:minmax(0,1fr);}
  .cta-band-inner{padding:30px 0;}
}
@media (max-width:640px){
  .page-hero h1{font-size:clamp(30px,8vw,40px);}
  .hero-sub{font-size:15.5px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px 0;}
  .footer-col{padding:0;border-left:0;}
  .footer-col h3{margin-bottom:12px;}
  .form-card{padding:26px 20px 24px;}
  .doc-head{flex-direction:column;gap:8px;}
  .doc-index{padding-top:0;}
  .hero-card{padding:22px 20px;}
  .kpi-value{font-size:22px;}
  .btn{width:100%;}
  .cta-band .btn{width:100%;}
  .breadcrumb{font-size:13px;}
}

/* roulang page: category3 */
:root{
  --green:#12403A;
  --green-deep:#0B2A26;
  --copper:#C0602B;
  --copper-light:#E9A579;
  --copper-soft:#F3E3D8;
  --paper:#F7F5F0;
  --paper-2:#F1EEE7;
  --card:#FFFFFF;
  --line:#E3DED4;
  --ink:#101A18;
  --ink-2:#6B6A64;
  --ink-3:#8E8C84;
  --pos:#2E7D5B;
  --r:4px;
  --r-sm:2px;
  --sh-1:0 1px 0 rgba(16,26,24,.04);
  --sh-2:0 12px 32px rgba(16,26,24,.08);
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --sans:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","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);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--copper);outline-offset:2px;border-radius:2px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.fx-grid{margin-left:-15px;margin-right:-15px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(16,26,24,.07)}
.nav-inner{
  max-width:1240px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:32px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{position:relative;width:22px;height:22px;border-radius:50%;background:var(--green);flex:0 0 auto}
.brand-mark::after{
  content:"";position:absolute;right:-5px;bottom:-5px;width:13px;height:13px;
  background:var(--copper);border-radius:1px;
}
.brand-text{display:flex;align-items:baseline;gap:2px;font-size:15px;letter-spacing:.01em;color:var(--ink)}
.brand-text .mono-part{font-family:var(--mono);font-size:14px;font-weight:600;letter-spacing:-.015em}
.brand-text .cn-part{font-weight:800}
.nav-main{display:flex;align-items:center;gap:28px;flex:1 1 auto}
.nav-link{
  position:relative;font-size:14px;color:var(--ink);padding:6px 0;
  transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--copper);transition:width .22s ease;
}
.nav-link:hover{color:var(--green)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--green);font-weight:700}
.nav-link.is-active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.command-search{
  display:flex;align-items:center;gap:8px;width:260px;height:36px;
  padding:0 8px 0 12px;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--r);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.command-search i{font-size:12px;color:var(--ink-3)}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-family:inherit;font-size:13px;color:var(--ink);
}
.command-search input::placeholder{color:var(--ink-3)}
.command-search:focus-within{
  border-color:var(--green);transform:translateY(1px);
  box-shadow:0 2px 0 rgba(18,64,58,.12);
}
.keycap{
  font-family:var(--mono);font-size:11px;line-height:1;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:3px;padding:4px 5px;
}
.nav-quick{font-size:13.5px;color:var(--ink-2);transition:color .18s ease;white-space:nowrap}
.nav-quick:hover{color:var(--copper)}
.nav-burger{
  display:none;width:38px;height:38px;border:1px solid var(--line);
  border-radius:var(--r);color:var(--green);font-size:15px;
  background:#fff;align-items:center;justify-content:center;
}
.nav-burger:hover{border-color:var(--copper);color:var(--copper)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-sm);
  font-size:14px;font-weight:700;padding:12px 20px;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-arrow{display:inline-block;transition:transform .18s ease}
.btn-primary{background:var(--green);color:var(--paper)}
.btn-primary:hover{background:var(--copper);color:#fff}
.btn-primary:hover .btn-arrow{transform:translateX(2px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--copper-soft);border-color:var(--copper);color:var(--ink)}
.btn-outline:hover .btn-arrow{transform:translateX(2px)}
.btn-ghost{color:var(--paper);border-color:rgba(247,245,240,.48);background:transparent}
.btn-ghost:hover{background:rgba(247,245,240,.1);border-color:var(--copper-light);color:#fff}
.btn-ghost:hover .btn-arrow{transform:translateX(2px)}
.btn-sm{padding:8px 14px;font-size:13px}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--green);
  border-bottom:2px solid var(--copper);padding-bottom:2px;transition:border-bottom-width .18s ease,color .18s ease;
}
.link-cta:hover{color:var(--copper);border-bottom-width:4px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--green-deep);color:var(--paper)}
.hero-media{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,42,38,.97) 0%,rgba(11,42,38,.88) 44%,rgba(11,42,38,.42) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:24px;padding-bottom:80px}
.breadcrumb{font-size:13.5px;color:rgba(247,245,240,.66);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:rgba(247,245,240,.66);transition:color .18s ease}
.breadcrumb a:hover{color:var(--copper-light)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(247,245,240,.95);font-weight:600}
.hero-layout{
  display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);
  gap:56px;align-items:center;margin-top:44px;
}
.hero-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--copper-light);
  border:1px solid rgba(233,165,121,.5);border-radius:999px;padding:6px 14px;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.8vw,58px);
  line-height:1.08;font-weight:800;letter-spacing:-.02em;color:#fff;
}
.hero-sub{margin-top:18px;max-width:600px;font-size:17px;line-height:1.75;color:rgba(247,245,240,.78)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-points{margin-top:34px;display:grid;gap:10px}
.hero-points li{
  position:relative;padding-left:18px;font-size:14px;color:rgba(247,245,240,.76);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:1px;background:var(--copper-light);
}
.hero-card{
  background:rgba(247,245,240,.07);
  border:1px solid rgba(247,245,240,.2);
  border-radius:var(--r);padding:26px 26px 20px;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.hero-card .card-label{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;
  color:rgba(247,245,240,.55);text-transform:uppercase;
}
.hero-stat{display:grid;padding:16px 0;border-top:1px solid rgba(247,245,240,.14)}
.hero-stat:first-of-type{border-top:0;padding-top:14px}
.hero-stat .num{font-family:var(--mono);font-size:26px;font-weight:600;letter-spacing:-.02em;color:var(--copper-light);font-variant-numeric:tabular-nums}
.hero-stat .unit{font-size:12.5px;color:rgba(247,245,240,.6);margin-left:6px}
.hero-stat .lbl{font-size:13px;color:rgba(247,245,240,.66);margin-top:4px}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:var(--green-deep);color:var(--paper)}
.sec-head{max-width:760px}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:12px;
  letter-spacing:.16em;color:var(--copper);margin-bottom:16px;
}
.sec-title{font-size:clamp(26px,3.1vw,38px);line-height:1.16;font-weight:800;letter-spacing:-.015em}
.sec-lead{margin-top:16px;font-size:16.5px;color:var(--ink-2);max-width:720px}
.section-dark .sec-lead{color:rgba(247,245,240,.72)}
.section-dark .eyebrow{color:var(--copper-light)}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}

/* ---------- Prose + figure ---------- */
.prose p{font-size:16.5px;color:var(--ink-2);line-height:1.85;margin-top:18px}
.prose p:first-child{margin-top:0}
.check-list{margin-top:26px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink)}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;
  border:1px solid var(--copper);border-radius:2px;
}
.figure-frame{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.figure-frame img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .4s ease}
.figure-frame:hover img{transform:scale(1.02)}
.figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center}

/* ---------- Metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid rgba(247,245,240,.16);margin-top:48px;
}
.metric{padding:28px 24px;border-left:1px solid rgba(247,245,240,.16)}
.metric:first-child{border-left:0}
.metric .num{
  font-family:var(--mono);font-size:clamp(30px,4vw,52px);font-weight:600;
  line-height:1;letter-spacing:-.03em;color:#fff;font-variant-numeric:tabular-nums;
}
.metric .unit{font-size:13px;color:var(--copper-light);margin-left:6px;font-family:var(--mono)}
.metric .lbl{display:block;margin-top:14px;font-size:13px;color:rgba(247,245,240,.62);line-height:1.6}

/* ---------- Timeline ---------- */
.timeline{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  margin-top:52px;border-top:1px solid var(--line);
}
.tl-step{position:relative;padding:34px 20px 10px;border-left:1px solid var(--line)}
.tl-step:first-child{border-left:0;padding-left:0}
.tl-step:first-child::before{left:0}
.tl-step::before{
  content:"";position:absolute;left:20px;top:-4px;width:7px;height:7px;
  border-radius:50%;background:var(--copper);
}
.tl-num{
  font-family:var(--mono);font-size:34px;font-weight:600;line-height:1;
  letter-spacing:-.02em;color:var(--copper);font-variant-numeric:tabular-nums;
}
.tl-step h3{margin-top:16px;font-size:17.5px;font-weight:700;line-height:1.4}
.tl-step p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.72}
.tl-list{margin-top:14px;font-size:13px;color:var(--ink-2)}
.tl-list li{position:relative;padding-left:15px;margin-top:7px}
.tl-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1px;background:var(--copper)}

/* ---------- Mode cards ---------- */
.mode-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:44px}
.mode-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mode-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--copper)}
.mode-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mode-body{padding:20px 20px 24px}
.mode-body h3{font-size:17px;font-weight:700}
.mode-meta{margin-top:8px;font-family:var(--mono);font-size:12.5px;color:var(--copper);font-variant-numeric:tabular-nums}
.mode-body p{margin-top:10px;font-size:13.5px;color:var(--ink-2);line-height:1.72}

/* ---------- Documents ---------- */
.doc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;margin-top:40px}
.doc-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.doc-idx{font-family:var(--mono);font-size:12.5px;color:var(--copper);padding-top:3px;flex:0 0 auto}
.doc-item h3{font-size:15.5px;font-weight:700}
.doc-item p{margin-top:5px;font-size:13.5px;color:var(--ink-2);line-height:1.7}

/* ---------- Risk / exceptions ---------- */
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:44px}
.risk-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 24px 26px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.risk-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--copper)}
.risk-item h3{font-size:16.5px;font-weight:700;display:flex;align-items:center;gap:10px}
.risk-item h3 i{color:var(--copper);font-size:14px}
.risk-item p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- Quotes ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:44px}
.quote{border-left:3px solid var(--copper);padding:4px 0 4px 20px}
.quote p{font-size:15px;line-height:1.82;color:var(--ink)}
.quote footer{margin-top:14px;font-size:12.5px;color:var(--ink-2);font-family:var(--mono)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:320px minmax(0,1fr);gap:56px;margin-top:8px}
.faq-aside .sec-title{font-size:clamp(24px,2.6vw,32px)}
.faq-aside p{margin-top:16px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.faq-aside .btn{margin-top:22px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--copper)}
.faq-sign{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--copper);transition:transform .2s ease}
.faq-sign::before{left:0;top:7.5px;width:16px;height:1.5px}
.faq-sign::after{left:7.5px;top:0;width:1.5px;height:16px}
.faq-item.open .faq-sign::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding-bottom:22px;font-size:14.5px;color:var(--ink-2);line-height:1.78;max-width:760px}

/* ---------- CTA + form ---------- */
.cta-band{background:var(--green-deep);color:var(--paper);padding:88px 0}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,520px);gap:64px;align-items:start}
.cta-band h2{font-size:clamp(26px,3vw,38px);line-height:1.16;font-weight:800;color:#fff}
.cta-band .lead{margin-top:18px;font-size:16px;color:rgba(247,245,240,.76);max-width:520px}
.cta-points{margin-top:28px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:18px;font-size:14px;color:rgba(247,245,240,.74)}
.cta-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--copper-light)}
.cta-contact{margin-top:30px;font-size:13.5px;color:rgba(247,245,240,.66);line-height:1.9}
.form-card{background:var(--paper);border-radius:var(--r);padding:28px;color:var(--ink)}
.form-card h3{font-size:17px;font-weight:800}
.form-card .form-hint{margin-top:6px;font-size:13px;color:var(--ink-2)}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.field .req{color:var(--copper)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  padding:11px 12px;font-family:inherit;font-size:14px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 2px rgba(18,64,58,.12);
}
.form-card .btn{width:100%;justify-content:center;margin-top:20px}
.form-note{margin-top:12px;font-size:12.5px;color:var(--ink-2)}
.form-note.is-ok{color:var(--pos);font-weight:600}

/* ---------- Related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:44px}
.related-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--copper)}
.related-card .idx{font-family:var(--mono);font-size:12px;color:var(--copper);letter-spacing:.1em}
.related-card h3{margin-top:12px;font-size:17px;font-weight:700}
.related-card p{margin-top:8px;font-size:13.5px;color:var(--ink-2);line-height:1.7}
.related-card .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13.5px;font-weight:700;color:var(--green);
}
.related-card:hover .more{color:var(--copper)}
.back-home{margin-top:36px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;font-size:14px;color:var(--ink-2)}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,38,.44);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:88%;max-width:360px;
  background:var(--paper);z-index:120;padding:24px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-20px 0 48px rgba(16,26,24,.18);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;color:var(--green);
}
.drawer-close:hover{border-color:var(--copper);color:var(--copper)}
.drawer-nav{margin-top:28px;display:grid}
.drawer-nav a{
  padding:14px 0;font-size:15.5px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.is-active{color:var(--green);font-weight:700}
.drawer-nav a i{color:var(--copper);font-size:12px}
.drawer-search{margin-top:24px}
.drawer-search .command-search{width:100%}
.drawer-foot{margin-top:28px;font-size:13px;color:var(--ink-2);line-height:1.9}
.drawer-foot .btn{margin-top:16px;width:100%;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{background:var(--green-deep);color:rgba(247,245,240,.7);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid rgba(247,245,240,.12)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col h3{color:#F7F5F0;font-size:14px;font-weight:800;margin-bottom:16px;letter-spacing:.01em}
.footer-brand .brand-text{color:#F7F5F0;font-size:16px}
.footer-claim{margin-top:16px;font-size:13.5px;line-height:1.85;max-width:340px}
.footer-contact{margin-top:18px;font-size:13px;line-height:1.9}
.footer-contact .mono{color:rgba(247,245,240,.86)}
.footer-icons{margin-top:20px;display:flex;gap:10px}
.footer-icons a{
  width:34px;height:34px;border:1px solid rgba(247,245,240,.22);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;color:rgba(247,245,240,.72);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.footer-icons a:hover{border-color:var(--copper);color:var(--copper-light);background:rgba(192,96,43,.12)}
.footer-links a{
  display:block;font-size:13.5px;padding:6px 0;color:rgba(247,245,240,.7);
  transition:color .18s ease,padding-left .18s ease;
}
.footer-links a:hover{color:var(--copper-light);padding-left:4px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(247,245,240,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;
  align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-main{gap:20px}
  .command-search{width:210px}
  .nav-quick{display:none}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .hero-layout{gap:40px}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(odd){border-left:0;padding-left:0}
  .footer-col:nth-child(even){padding-right:0}
}
@media (max-width:900px){
  .nav-main,.command-search,.nav-quick,.nav-right .btn{display:none}
  .nav-burger{display:flex}
  .nav-inner{height:56px;gap:16px;justify-content:space-between}
  .hero-layout{grid-template-columns:1fr;gap:36px}
  .hero-inner{padding-top:20px;padding-bottom:64px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric{border-left:0;border-top:1px solid rgba(247,245,240,.16);padding:24px 0}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .metric:nth-child(even){padding-left:24px;border-left:1px solid rgba(247,245,240,.16)}
  .timeline{grid-template-columns:1fr;border-top:0}
  .tl-step{
    border-left:1px solid var(--line);border-top:0;
    padding:0 0 30px 26px;
  }
  .tl-step:first-child{padding-left:26px}
  .tl-step::before{left:-4px;top:8px}
  .tl-step:first-child::before{left:-4px}
  .tl-step:last-child{padding-bottom:0}
  .mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .doc-list{grid-template-columns:1fr;gap:0}
  .risk-grid,.quote-grid,.related-grid{grid-template-columns:1fr}
  .section-tight{padding:64px 0}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .nav-inner{padding:0 16px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%;justify-content:center}
  .section{padding:60px 0}
  .section-tight{padding:56px 0}
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0;padding-left:0 !important}
  .metric:nth-child(2){border-top:1px solid rgba(247,245,240,.16)}
  .mode-grid{
    display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory;
    padding-bottom:14px;margin-right:-16px;
  }
  .mode-card{min-width:80%;scroll-snap-align:start}
  .cta-band{padding:64px 0}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-col{padding:0 !important;border-left:0}
  .footer-bottom{justify-content:flex-start}
  .quote{padding-left:16px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink:#101A18;
  --ink-2:#6B6A64;
  --line:#E3DED4;
  --primary:#12403A;
  --primary-d:#0B2A26;
  --accent:#C0602B;
  --accent-soft:#F3E3D8;
  --pos:#2E7D5B;
  --sand:#EFEBE3;
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 0 rgba(16,26,24,.04);
  --shadow-2:0 12px 32px rgba(16,26,24,.08);
  --max:1240px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,245,240,.88);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,26,24,.07)}
.nav-inner{
  max-width:1280px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:16px;height:16px;flex:0 0 16px;
  background:var(--primary);border-radius:2px;
}
.brand-mark::after{
  content:"";position:absolute;right:-6px;bottom:-5px;
  width:12px;height:12px;border-radius:50%;background:var(--accent);
}
.brand-text{display:inline-flex;align-items:baseline;white-space:nowrap}
.brand-text .mono-part{font-family:var(--font-mono);font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--primary)}
.brand-text .cn-part{font-size:17px;font-weight:700;color:var(--ink);margin-left:1px}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;padding:20px 0;
  font-size:14px;color:var(--ink-2);transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:500}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:250px;height:38px;padding:0 10px;
  background:var(--sand);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.command-search i{font-size:12px;color:var(--ink-2)}
.command-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  font-size:13px;padding:0;color:var(--ink);
}
.command-search input::placeholder{color:#9C9A93}
.command-search input:focus{outline:none}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 2px 0 rgba(18,64,58,.14);transform:translateY(1px)}
.keycap{
  font-family:var(--font-mono);font-size:10px;line-height:1.6;
  color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:3px;padding:1px 5px;flex:0 0 auto;
}
.nav-quick{font-size:13px;color:var(--ink-2);border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.nav-quick:hover{color:var(--ink);border-bottom-color:var(--accent-soft)}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);cursor:pointer;transition:border-color .2s,color .2s;
}
.nav-burger:hover{border-color:var(--primary);color:var(--primary)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:500;line-height:1.2;
  padding:12px 20px;border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn .btn-arrow{display:inline-block;transition:transform .2s ease}
.btn:hover .btn-arrow{transform:translateX(2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--ink)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--primary);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-block{width:100%}
.text-cta{
  display:inline-block;font-size:14px;font-weight:500;color:var(--primary);
  border-bottom:2px solid var(--accent);padding-bottom:2px;
  transition:border-bottom-width .15s ease,color .2s ease;
}
.text-cta:hover{border-bottom-width:3px;color:var(--accent)}

/* ============ Drawer ============ */
.drawer{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-scrim{
  position:absolute;inset:0;background:rgba(11,42,38,.42);
  opacity:0;transition:opacity .28s ease;
}
.drawer.is-open .drawer-scrim{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:88%;max-width:400px;
  background:var(--paper);border-left:1px solid var(--line);
  padding:20px 22px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:22px;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);background:#fff;
  border-radius:var(--radius);cursor:pointer;transition:border-color .2s,color .2s;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  padding:14px 2px;font-size:15px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;color:var(--ink-2);
}
.drawer-nav a:hover{color:var(--ink)}
.drawer-nav a.is-active{color:var(--primary);font-weight:700}
.drawer-search{width:100%}
.drawer-contact{font-size:13px;color:var(--ink-2);line-height:1.9;border-top:1px solid var(--line);padding-top:16px}

/* ============ Page hero ============ */
.page-hero{position:relative;padding:44px 0 84px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(16,26,24,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(16,26,24,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:34px;flex-wrap:wrap}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#BEB9AE}
.breadcrumb .current{color:var(--ink)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--accent);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(34px,5vw,62px);line-height:1.06;letter-spacing:-.02em;font-weight:800;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:620px;line-height:1.8}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-points{margin-top:32px;display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:22px;max-width:620px}
.hero-points li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;background:var(--accent);border-radius:50%}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-sm);border:1px solid var(--line);
}
.hero-stat{
  position:absolute;left:-22px;bottom:-26px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 20px;box-shadow:var(--shadow-2);max-width:250px;
}
.hero-stat .stat-num{display:block;font-size:32px;font-weight:600;color:var(--primary);line-height:1.1}
.hero-stat .stat-unit{font-size:14px;margin-left:4px;color:var(--ink-2)}
.hero-stat .stat-label{display:block;margin-top:6px;font-size:12px;color:var(--ink-2);line-height:1.6}

/* ============ Sections ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:48px;max-width:760px}
.section-head h2{margin-top:14px;font-size:clamp(26px,3.2vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.section-head.with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* intro */
.intro-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.intro-cols p{font-size:15px;color:var(--ink-2);line-height:1.85}
.intro-cols p strong{color:var(--ink);font-weight:700}

/* stagger cards */
.stagger-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.stagger-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stagger-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--accent)}
.stagger-card:nth-child(even){margin-top:56px}
.card-media{overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.stagger-card:hover .card-media img{transform:scale(1.02)}
.card-body{padding:26px 26px 30px}
.card-index{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.08em;margin-bottom:12px;
}
.card-body h3{font-size:20px;font-weight:700;line-height:1.35}
.card-body p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}
.card-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;color:var(--ink-2);border:1px solid var(--line);
  border-radius:999px;padding:3px 11px;background:#FDFCFA;
}
.stagger-card.is-plain{background:#FDFCFA}
.stagger-card.is-plain .card-body{padding:30px 26px 34px}

/* dark band */
.dark-band{background:var(--primary-d);color:var(--paper);padding:96px 0}
.dark-band .eyebrow{color:#D9A583}
.dark-band .eyebrow::before{background:#D9A583}
.band-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.band-copy h2{margin-top:14px;font-size:clamp(24px,3vw,34px);line-height:1.18;font-weight:700}
.band-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(247,245,240,.7)}
.band-list{display:flex;flex-direction:column}
.band-list li{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid rgba(247,245,240,.16);
}
.band-list li:first-child{border-top:1px solid rgba(247,245,240,.16)}
.band-list .num{font-family:var(--font-mono);font-size:14px;color:#D9A583;padding-top:3px}
.band-list h3{font-size:17px;font-weight:700}
.band-list p{margin-top:6px;font-size:14px;color:rgba(247,245,240,.68);line-height:1.75}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:56px;align-items:start}
.faq-aside h2{margin-top:14px;font-size:clamp(24px,3vw,34px);line-height:1.18;font-weight:700}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--ink-2)}
.faq-aside .btn{margin-top:24px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 0;cursor:pointer;list-style:none;font-size:17px;font-weight:500;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-sign{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:1.5px;
  background:var(--accent);transition:transform .2s ease;
}
.faq-sign::after{transform:rotate(90deg)}
details[open] .faq-sign::after{transform:rotate(0deg)}
.faq-answer{padding:0 24px 24px 0;color:var(--ink-2);font-size:15px;line-height:1.75;max-width:760px}

/* inquiry */
.inquiry{background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.inquiry-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.reason-list{display:flex;flex-direction:column;gap:20px;margin-top:26px}
.reason-list li{display:grid;grid-template-columns:34px 1fr;gap:14px;font-size:15px;color:var(--ink-2);line-height:1.75}
.reason-list .num{font-family:var(--font-mono);font-size:13px;color:var(--accent);padding-top:3px}
.reason-list strong{color:var(--ink);font-weight:700}
.contact-block{
  margin-top:30px;padding-top:22px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-2);line-height:1.9;
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-1);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-card .form-note{font-size:13px;color:var(--ink-2);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.field .req{color:var(--accent);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 12px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:14px;line-height:1.5;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:112px;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 2px 0 rgba(18,64,58,.14);
}
.form-foot{margin-top:18px}
.privacy{margin-top:12px;font-size:12px;color:var(--ink-2);line-height:1.7}

/* CTA band */
.cta-band{background:var(--primary);color:var(--paper);padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.25;font-weight:700}
.cta-inner p{margin-top:10px;font-size:14px;color:rgba(247,245,240,.72);max-width:620px}

/* related */
.related{padding:64px 0 88px}
.related h2{font-size:20px;font-weight:700;margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.related-item{
  display:flex;flex-direction:column;gap:8px;padding:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--accent)}
.related-item .idx{font-family:var(--font-mono);font-size:12px;color:var(--accent)}
.related-item h3{font-size:15px;font-weight:700}
.related-item span{font-size:13px;color:var(--ink-2)}
.related-home{margin-top:26px}

/* ============ Footer ============ */
.site-footer{background:#0B1F1C;color:rgba(247,245,240,.7);padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-col h3{font-size:13px;letter-spacing:.06em;color:#fff;font-weight:700;margin-bottom:18px}
.footer-col{border-left:1px solid rgba(247,245,240,.1);padding-left:24px}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-brand .brand-text .mono-part{color:#fff}
.footer-brand .brand-text .cn-part{color:#fff}
.footer-claim{margin-top:16px;font-size:13px;line-height:1.85;max-width:360px}
.footer-contact{margin-top:18px;font-size:13px;line-height:1.9}
.footer-icons{display:flex;gap:10px;margin-top:20px}
.footer-icons a{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,245,240,.18);border-radius:var(--radius-sm);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.footer-icons a:hover{border-color:var(--accent);color:var(--accent);background:rgba(192,96,43,.1)}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:13px;transition:color .2s ease}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(247,245,240,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(247,245,240,.55);
}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ Responsive ============ */
@media (max-width:1200px){
  .nav-main{gap:20px}
  .command-search{width:200px}
  .nav-quick{display:none}
}
@media (max-width:1024px){
  .nav-main,.command-search{display:none}
  .nav-burger{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-stat{left:0;bottom:-22px}
  .intro-cols{grid-template-columns:1fr;gap:22px}
  .band-grid{grid-template-columns:1fr;gap:40px}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .inquiry-grid{grid-template-columns:1fr;gap:40px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:900px){
  .section{padding:64px 0}
  .section-head{margin-bottom:34px}
  .section-head.with-link{flex-direction:column;align-items:flex-start;gap:14px}
  .stagger-grid{grid-template-columns:1fr;gap:22px}
  .stagger-card:nth-child(even){margin-top:0}
  .dark-band{padding:64px 0}
  .page-hero{padding:34px 0 64px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .nav-inner{padding:0 18px;height:56px}
  .brand-text .cn-part{font-size:16px}
  .page-hero h1{font-size:clamp(30px,8.4vw,40px)}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stat{position:static;margin-top:-16px;max-width:none;box-shadow:var(--shadow-1)}
  .hero-points li{font-size:13px}
  .form-row{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{border-left:0;padding-left:0;border-top:1px solid rgba(247,245,240,.1);padding-top:22px}
  .footer-col:first-child{border-top:0;padding-top:0}
  .cta-band{padding:48px 0}
  .cta-inner .btn{width:100%}
  .form-card{padding:22px}
  .band-list li{grid-template-columns:38px 1fr;gap:12px}
}