/* roulang page: index */
:root{
  --primary:#12615B;
  --primary-700:#0B403C;
  --primary-50:#EEF5F4;
  --accent:#C2703C;
  --accent-600:#A85E2F;
  --base:#F7F6F3;
  --surface:#FFFFFF;
  --panel:#F1F0EC;
  --dark:#0E1614;
  --text:#1A1F1E;
  --text-2:#5C6663;
  --text-3:#8C9694;
  --text-inv:#F4F6F5;
  --line:#E4E3DE;
  --line-strong:#D3D1CA;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(16,24,22,.04);
  --sh-2:0 10px 28px -14px rgba(16,24,22,.16);
  --sh-3:0 20px 48px -20px rgba(16,24,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --container:1200px;
  --gap:24px;
  --sec:96px;
}
*,*::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:1.85;
  color:var(--text);
  background:var(--base);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--primary-700);}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(18,97,91,.16);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--primary);opacity:.85;}
.section-title{font-family:var(--serif);font-size:30px;line-height:1.4;letter-spacing:0;}
.section-sub{color:var(--text-2);font-size:15px;margin-top:14px;max-width:680px;}
.link-more{font-size:14px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color .24s var(--ease),color .24s var(--ease);}
.link-more:hover{border-color:var(--primary);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-stuck{box-shadow:0 1px 6px rgba(0,0,0,.05);}
.header-inner{display:flex;align-items:center;gap:32px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--primary);}
.brand-mark{width:30px;height:30px;flex:0 0 auto;color:var(--primary);}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-list{display:flex;align-items:center;gap:28px;flex:1 1 auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;font-weight:500;
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  background:var(--panel);border:1px solid transparent;border-radius:999px;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box:focus-within{background:var(--surface);border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,97,91,.12);}
.search-box svg{width:15px;height:15px;color:var(--text-3);flex:0 0 auto;}
.search-box input{
  border:0;background:transparent;outline:none;width:132px;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),opacity .22s var(--ease);
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);}
.btn-accent:active{transform:scale(.985) translateY(0);}
.btn-outline{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-50);color:var(--primary-700);transform:translateY(-2px);}
.btn-outline:active{transform:scale(.985);}
.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--line-strong);}
.btn-ghost:hover{color:var(--text);border-color:var(--text-3);background:var(--surface);}
.btn-ghost-inv{background:transparent;color:var(--text-inv);border-color:rgba(244,246,245,.38);}
.btn-ghost-inv:hover{color:#fff;border-color:#fff;background:rgba(244,246,245,.08);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:600;line-height:1;
  background:var(--primary-50);color:var(--primary-700);
}
.badge-accent{background:var(--accent);color:#fff;}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--text-2);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:var(--panel);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.chip:hover{background:var(--primary-50);color:var(--primary-700);border-color:rgba(18,97,91,.25);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(720px 420px at 12% 8%, rgba(18,97,91,.06), transparent 62%),
    radial-gradient(560px 360px at 92% 82%, rgba(194,112,60,.05), transparent 60%),
    var(--base);
  padding:76px 0 88px;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,97,91,.18),transparent);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-title{
  font-family:var(--serif);font-size:44px;line-height:1.28;letter-spacing:-.01em;
}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text-2);margin-top:20px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:28px;
  border-top:1px solid var(--line);
}
.stat-num{font-family:var(--serif);font-size:30px;color:var(--primary);line-height:1.2;font-weight:600;}
.stat-num sup{font-size:14px;margin-left:2px;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}
.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--sh-2);
  aspect-ratio:4/3;background:var(--panel);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.member-card{
  position:absolute;left:-14px;bottom:-24px;width:250px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 18px 16px;box-shadow:var(--sh-3);
  animation:floaty 6s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}
.member-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.member-level{font-family:var(--serif);font-size:18px;color:var(--primary-700);}
.member-rows{margin-top:12px;display:grid;gap:8px;}
.member-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2);}
.member-row b{color:var(--text);font-weight:600;}

/* ---------- compare table ---------- */
.compare-scroll{
  position:relative;overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);box-shadow:var(--sh-1);
}
.compare-scroll::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:32px;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(247,246,243,.9));
}
.compare-table{border-collapse:separate;border-spacing:0;width:100%;min-width:880px;}
.compare-table th,.compare-table td{
  text-align:left;padding:0 20px;height:52px;font-size:14px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table thead th{
  background:#F1F5F4;color:var(--primary-700);font-size:14px;font-weight:600;
  height:60px;border-bottom:1px solid var(--line);
}
.compare-table thead th .badge{margin-left:8px;}
.compare-table th.col-benefit,.compare-table td.col-benefit{
  position:sticky;left:0;z-index:2;background:var(--surface);color:var(--text);
  font-weight:500;min-width:180px;box-shadow:1px 0 0 var(--line);
}
.compare-table thead th.col-benefit{background:#F1F5F4;z-index:3;}
.compare-table tbody tr:hover td{background:#FAF9F6;}
.compare-table tbody tr:hover td.col-benefit{background:#FAF9F6;}
.compare-table td.is-featured,.compare-table th.is-featured{background:rgba(18,97,91,.05);}
.compare-table th.is-featured{position:relative;}
.compare-table th.is-featured::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent);
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.mark-yes{display:inline-block;width:16px;height:16px;color:var(--primary);vertical-align:-3px;}
.mark-no{display:inline-block;width:14px;height:1px;background:var(--text-3);vertical-align:4px;}
.compare-cta{text-align:center;margin-top:32px;}
.scroll-hint{display:none;font-size:12px;color:var(--text-3);margin-top:10px;text-align:center;}

/* ---------- tier list ---------- */
.tier-list{border-top:1px solid var(--line);}
.tier-item{
  display:grid;grid-template-columns:120px 1fr 260px;gap:32px;align-items:start;
  padding:36px 0;border-bottom:1px solid var(--line);
  transition:background .26s var(--ease);
}
.tier-item:hover{background:rgba(255,255,255,.7);}
.tier-item.flip .tier-no{order:3;text-align:right;}
.tier-item.flip .tier-body{order:2;}
.tier-item.flip .tier-side{order:1;}
.tier-no{
  font-family:var(--serif);font-size:56px;line-height:1;color:var(--primary);opacity:.2;font-weight:600;
}
.tier-name{font-family:var(--serif);font-size:20px;margin-bottom:14px;}
.tier-points{display:grid;gap:8px;}
.tier-points li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);}
.tier-points li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;
  background:var(--primary);opacity:.5;
}
.tier-side{border-left:1px solid var(--line);padding-left:28px;}
.tier-threshold{font-size:14px;color:var(--text-2);margin-bottom:18px;}
.tier-threshold b{color:var(--text);}

/* ---------- content preview ---------- */
.content-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;}
.content-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,97,91,.3);}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--panel);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.content-card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{position:absolute;left:14px;top:14px;}
.content-card.lead .card-media{aspect-ratio:16/10;}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-title{font-family:var(--serif);font-size:19px;line-height:1.5;}
.content-card.lead .card-title{font-size:23px;}
.card-desc{font-size:14px;color:var(--text-2);}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;}
.lock{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);}
.lock svg{width:14px;height:14px;}
.card-time{font-size:13px;color:var(--text-3);}

/* ---------- news list (cms) ---------- */
.news-list{border-top:1px solid var(--line);}
.news-item{
  display:grid;grid-template-columns:1fr 44px;gap:24px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.news-item:hover{background:rgba(255,255,255,.72);padding-left:8px;}
.news-title{font-family:var(--serif);font-size:19px;line-height:1.5;margin:10px 0 8px;}
.news-title a{color:var(--text);}
.news-title a:hover{color:var(--primary);}
.news-summary{
  font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:12px;font-size:13px;color:var(--text-3);}
.news-arrow{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-3);
  transition:color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.news-item:hover .news-arrow{color:var(--primary);border-color:rgba(18,97,91,.4);transform:translateX(3px);}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;color:var(--text-2);border-bottom:1px solid var(--line);
}
.empty-state svg{width:48px;height:48px;color:var(--primary);opacity:.3;}
.empty-state p{font-size:15px;}

/* ---------- voices ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;display:flex;flex-direction:column;gap:16px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,97,91,.3);}
.voice-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--primary-50);color:var(--primary-700);
  display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:17px;font-weight:600;flex:0 0 auto;
}
.voice-name{font-size:15px;font-weight:600;}
.voice-role{font-size:13px;color:var(--text-3);}
.voice-text{font-size:15px;color:var(--text-2);}
.voice-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.rank-strip{
  margin-top:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.rank-item{display:flex;flex-direction:column;gap:6px;}
.rank-item b{font-family:var(--serif);font-size:22px;color:var(--primary);font-weight:600;}
.rank-item span{font-size:13px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:18px 0;text-align:left;font-size:16px;font-weight:500;color:var(--text);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;position:relative;
  transition:transform .3s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-2);border-radius:1px;}
.faq-icon::before{width:11px;height:1.5px;}
.faq-icon::after{width:1.5px;height:11px;transition:opacity .24s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--primary-50);border-color:rgba(18,97,91,.35);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a-inner{padding:0 40px 24px 0;font-size:15px;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{background:var(--dark);color:var(--text-inv);padding:76px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-title{font-family:var(--serif);font-size:30px;color:#fff;line-height:1.4;}
.cta-desc{color:rgba(244,246,245,.72);font-size:15px;margin-top:14px;max-width:460px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.span-2{grid-column:1 / -1;}
.field label{font-size:13px;color:rgba(244,246,245,.8);}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field textarea{
  height:48px;padding:0 16px;border-radius:var(--r-input);
  background:rgba(255,255,255,.08);border:1px solid rgba(244,246,245,.24);
  color:#fff;font-size:15px;outline:none;width:100%;
  transition:border-color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{height:96px;padding:12px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(244,246,245,.4);}
.field input:focus,.field textarea:focus{border-color:var(--accent);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(194,112,60,.22);}
.field.has-error input,.field.has-error textarea{border-color:#D9614F;background:rgba(217,97,79,.1);}
.field-error{font-size:12px;color:#F0A99C;display:none;}
.field.has-error .field-error{display:block;}
.form-note{font-size:12px;color:rgba(244,246,245,.5);margin-top:14px;grid-column:1 / -1;}
.form-success{
  display:none;align-items:center;gap:12px;padding:18px 20px;border-radius:var(--r-card);
  background:rgba(18,97,91,.28);border:1px solid rgba(244,246,245,.2);color:#fff;font-size:15px;
}
.form-success.is-visible{display:flex;}
.form-success svg{width:22px;height:22px;color:#8FD6C4;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(244,246,245,.68);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{color:#8FD6C4;}
.footer-brand span{font-size:17px;font-weight:600;color:#fff;letter-spacing:.01em;}
.footer-desc{font-size:13px;line-height:1.9;max-width:320px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13px;color:rgba(244,246,245,.68);}
.footer-col a:hover{color:#8FD6C4;}
.footer-contact li{font-size:13px;display:flex;gap:10px;align-items:flex-start;}
.footer-contact b{color:rgba(244,246,245,.9);font-weight:500;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(244,246,245,.12);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between;font-size:12px;
  color:rgba(244,246,245,.5);
}
.footer-bottom a{color:rgba(244,246,245,.5);}
.footer-bottom a:hover{color:#8FD6C4;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,22,20,.4);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--surface);
  z-index:90;transform:translateX(100%);transition:transform .32s var(--ease);
  padding:24px;display:flex;flex-direction:column;gap:24px;box-shadow:var(--sh-3);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--text);font-weight:500;
}
.drawer-nav a:hover{background:var(--panel);color:var(--primary);}
.drawer-nav a.is-active{background:var(--primary-50);color:var(--primary-700);}
.drawer-cta{margin-top:auto;display:grid;gap:12px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--container:960px;}
  .hero-grid{gap:40px;}
  .hero-title{font-size:40px;}
  .tier-item{grid-template-columns:96px 1fr 220px;gap:24px;}
}
@media (max-width:991px){
  :root{--sec:72px;}
  .nav-list,.search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-title{font-size:36px;}
  .hero-sub{max-width:none;}
  .member-card{left:auto;right:12px;bottom:-20px;width:230px;}
  .content-grid{grid-template-columns:1fr 1fr;}
  .content-card.lead{grid-column:1 / -1;}
  .voice-grid{grid-template-columns:1fr 1fr;}
  .rank-strip{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .tier-item,.tier-item.flip{grid-template-columns:72px 1fr;gap:20px;}
  .tier-item.flip .tier-no{order:0;text-align:left;}
  .tier-item.flip .tier-body{order:0;}
  .tier-item.flip .tier-side{order:0;}
  .tier-side{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line);padding:20px 0 0;}
  .scroll-hint{display:block;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  .header-inner{height:60px;gap:16px;}
  .brand-text{font-size:16px;}
  .section-title{font-size:23px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-stats{gap:24px;}
  .stat-num{font-size:24px;}
  .content-grid{grid-template-columns:1fr;}
  .content-card.lead{grid-column:auto;}
  .voice-grid{grid-template-columns:1fr;}
  .rank-strip{grid-template-columns:1fr 1fr;gap:18px;padding:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .news-item{grid-template-columns:1fr;gap:12px;}
  .news-arrow{display:none;}
  .faq-a-inner{padding-right:0;}
  .cta-band{padding:56px 0;}
  .cta-title{font-size:23px;}
  .form-grid{grid-template-columns:1fr;}
}
@media (max-width:559px){
  .btn{height:44px;}
  .btn-sm{height:40px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .rank-strip{grid-template-columns:1fr;}
  .tier-no{font-size:40px;}
  .compare-table th,.compare-table td{padding:0 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --primary:#12615B;
  --primary-700:#0B403C;
  --primary-50:#EEF5F4;
  --accent:#C2703C;
  --accent-600:#AC6233;
  --base:#F7F6F3;
  --surface:#FFFFFF;
  --surface-2:#F1F0EC;
  --dark:#0E1614;
  --text:#1A1F1E;
  --muted:#5C6663;
  --faint:#8C9694;
  --invert:#F4F6F5;
  --line:#E4E3DE;
  --line-strong:#D3D1CA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(16,24,22,.04);
  --shadow-2:0 10px 28px -14px rgba(16,24,22,.16);
  --shadow-3:0 20px 48px -20px rgba(16,24,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--base);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;line-height:1.4}
h1{font-size:44px;letter-spacing:-.01em}
h2{font-size:30px}
h3{font-size:20px;font-family:var(--font-sans);font-weight:600}
h4{font-size:16px;font-family:var(--font-sans);font-weight:600}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 通用 ---------- */
.section{padding:var(--space-section) 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);letter-spacing:.06em;margin-bottom:12px}
.stamp{width:10px;height:10px;border-radius:2px;background:var(--primary);display:inline-block;flex:0 0 auto}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px}
.cloud-rule{height:1px;background:linear-gradient(90deg,transparent,rgba(18,97,91,.12) 12%,rgba(18,97,91,.12) 88%,transparent);border:0;margin:0}
.muted{color:var(--muted)}
.faint{color:var(--faint)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent:active{transform:scale(.985)}
.btn-outline{background:var(--surface);color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.985)}
.btn-ghost{background:transparent;color:var(--muted);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-50)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--radius-badge);
  background:var(--primary-50);color:var(--primary-700);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:var(--accent);color:#fff}
.badge-soft{background:var(--surface-2);color:var(--muted)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 18px -8px rgba(16,24,22,.14)}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary);flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:26px;margin-right:auto}
.nav-link{position:relative;font-size:15px;color:var(--muted);padding:6px 0;transition:color .2s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--primary);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  background:var(--surface-2);border:1px solid transparent;border-radius:999px;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box svg{width:16px;height:16px;color:var(--faint);flex:0 0 auto}
.search-box input{width:150px;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--faint)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,97,91,.12)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;transition:background .2s var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:transform .24s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:26px;font-size:14px;color:var(--faint);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--muted);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--faint)}

/* ---------- 小 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:38px 0 44px;
  background:
    radial-gradient(600px 240px at 12% -30%,rgba(18,97,91,.07),transparent 70%),
    var(--base);
}
.cat-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,97,91,.14) 20%,rgba(18,97,91,.14) 80%,transparent);
}
.cat-hero-inner{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:center;min-height:230px}
.cat-hero h1{font-size:38px;margin-bottom:18px}
.cat-hero .lead{color:var(--muted);font-size:16px;max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1)}
.hero-side .side-label{font-size:12px;letter-spacing:.08em;color:var(--faint);margin-bottom:14px}
.hero-side ul li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);padding:9px 0;border-bottom:1px solid var(--line)}
.hero-side ul li:last-child{border-bottom:0;padding-bottom:0}
.hero-side ul li b{color:var(--text);font-weight:600;flex:0 0 auto}
.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:9px;flex:0 0 auto}

/* ---------- 对比表 ---------- */
.table-scroll{
  position:relative;overflow-x:auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}
table.compare th,table.compare td{padding:0 20px;height:52px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:middle}
table.compare thead th{
  background:#F1F5F4;font-family:var(--font-sans);font-weight:600;font-size:15px;
  height:64px;color:var(--text);position:sticky;top:0;z-index:2;
}
table.compare thead th:first-child{z-index:4;left:0}
table.compare tbody th:first-child,table.compare tbody td:first-child{
  position:sticky;left:0;background:var(--surface);font-weight:500;z-index:1;
  box-shadow:1px 0 0 var(--line);
}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:#FAF9F6}
table.compare tbody tr:hover td:first-child,table.compare tbody tr:hover th:first-child{background:#FAF9F6}
table.compare tbody tr:last-child td,table.compare tbody tr:last-child th{border-bottom:0}
.col-rec{background:var(--primary-50)}
table.compare thead .col-rec{background:#E6F0EE;position:relative}
table.compare thead .col-rec::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent)}
.rec-flag{display:inline-flex;align-items:center;margin-left:8px;padding:2px 8px;border-radius:var(--radius-badge);background:var(--accent);color:#fff;font-size:12px;font-weight:600}
.check{display:inline-flex;width:20px;height:20px}
.check svg{width:20px;height:20px}
.check-on{color:var(--primary)}
.check-off{color:var(--line-strong)}
.table-note{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:18px}
.table-note p{font-size:13px;color:var(--faint)}
.table-cta{text-align:center;margin-top:36px}

/* ---------- 等级条目 ---------- */
.level-list{margin-top:8px}
.level-item{
  display:grid;grid-template-columns:88px 1fr;gap:32px;align-items:start;
  padding:44px 0;border-top:1px solid var(--line);
}
.level-item:last-child{border-bottom:1px solid var(--line)}
.level-no{
  font-family:var(--font-serif);font-size:54px;line-height:1;color:rgba(18,97,91,.2);
  letter-spacing:-.02em;
}
.level-body h3{font-size:22px;font-family:var(--font-serif);margin-bottom:8px}
.level-body .level-sub{font-size:14px;color:var(--faint);margin-bottom:18px}
.level-points{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}
.level-points li{display:flex;gap:8px;font-size:14px;color:var(--muted);align-items:flex-start}
.level-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;border-top:1px dashed var(--line);padding-top:18px}
.level-foot .threshold{font-size:14px;color:var(--muted)}
.level-foot .threshold b{color:var(--text)}
.level-media{grid-column:1 / -1;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line)}
.level-media img{width:100%;aspect-ratio:16/8;object-fit:cover;transition:transform .32s var(--ease)}
.level-media:hover img{transform:scale(1.03)}
.level-item.alt{grid-template-columns:1fr 88px}
.level-item.alt .level-no{order:2;text-align:right}
.level-item.alt .level-body{order:1}
.level-item.alt .level-media{order:3}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 0;font-size:16px;font-weight:500;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  width:24px;height:24px;flex:0 0 auto;position:relative;color:var(--primary);
  transition:transform .28s var(--ease);
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-item summary .plus::before{left:3px;right:3px;top:11px;height:2px}
.faq-item summary .plus::after{top:3px;bottom:3px;left:11px;width:2px;transition:opacity .28s var(--ease)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .plus{transform:rotate(180deg)}
.faq-item[open] summary .plus::after{opacity:0}
.faq-item .faq-answer{padding:0 0 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:820px}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:var(--invert);padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:14px}
.cta-band .cta-desc{color:rgba(244,246,245,.7);font-size:15px;max-width:460px}
.cta-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:rgba(244,246,245,.6)}
.cta-form{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:rgba(244,246,245,.72)}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.2);color:#fff;
  outline:none;transition:border-color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{height:48px;padding-top:13px;resize:none}
.field input::placeholder,.field textarea::placeholder{color:rgba(244,246,245,.42)}
.field input:focus,.field textarea:focus{border-color:#7FC7BF;background:rgba(255,255,255,.12);box-shadow:0 0 0 2px rgba(127,199,191,.2)}
.field.has-error input,.field.has-error textarea{border-color:#E0776A;background:rgba(224,119,106,.1)}
.field .error-text{display:none;font-size:12px;color:#F0A79C}
.field.has-error .error-text{display:block}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:6px}
.form-actions .btn{min-width:160px}
.form-success{
  grid-column:1 / -1;display:none;align-items:center;gap:12px;
  padding:16px 18px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.08);border:1px solid rgba(127,199,191,.4);color:#fff;font-size:14px;
}
.form-success.show{display:flex}
.form-success svg{width:20px;height:20px;color:#7FC7BF;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(244,246,245,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px}
.footer-brand .brand-mark{color:#7FC7BF;width:28px;height:28px}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(244,246,245,.62);max-width:320px}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:16px;font-weight:600}
.site-footer ul li{margin-bottom:10px;font-size:13px}
.site-footer a{color:rgba(244,246,245,.68);transition:color .2s var(--ease)}
.site-footer a:hover{color:#7FC7BF}
.footer-contact li{display:flex;gap:8px;font-size:13px}
.footer-contact b{color:rgba(244,246,245,.86);font-weight:500;flex:0 0 auto}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(244,246,245,.5);
}
.footer-bottom a{color:rgba(244,246,245,.5)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:960px}
  .search-box input{width:110px}
}
@media (max-width:991px){
  :root{--space-section:72px}
  .container{max-width:100%}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;min-height:0}
  .cat-hero h1{font-size:32px}
  .nav-list{display:none}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-form{grid-template-columns:1fr 1fr}
  .level-points{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--space-section:56px}
  h1{font-size:30px}
  h2{font-size:23px}
  .container{padding:0 20px}
  .header-inner{height:60px;gap:14px}
  .brand-text{font-size:16px}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .nav-list{
    display:flex;position:fixed;top:0;right:0;height:100vh;width:78%;max-width:320px;
    background:#fff;flex-direction:column;align-items:flex-start;gap:0;
    padding:88px 24px 24px;box-shadow:-16px 0 40px -24px rgba(16,24,22,.3);
    transform:translateX(102%);transition:transform .3s var(--ease);z-index:70;margin:0;
  }
  .nav-list.is-open{transform:none}
  .nav-list .nav-link{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-list .nav-link::after{display:none}
  .cat-hero{padding-top:30px}
  .cat-hero h1{font-size:26px}
  .level-item,.level-item.alt{grid-template-columns:1fr;gap:18px;padding:32px 0}
  .level-item.alt .level-no{order:0;text-align:left}
  .level-item.alt .level-body{order:0}
  .level-points{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:52px 0}
  .cta-form{grid-template-columns:1fr}
}
@media (max-width:559px){
  .btn{min-height:44px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .level-no{font-size:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --primary:#12615B;
  --primary-700:#0B403C;
  --primary-50:#EEF5F4;
  --accent:#C2703C;
  --accent-600:#A85D2C;
  --base:#F7F6F3;
  --surface:#FFFFFF;
  --surface-2:#F1F0EC;
  --surface-3:#FAF9F6;
  --dark:#0E1614;
  --text:#1A1F1E;
  --text-2:#5C6663;
  --text-3:#8C9694;
  --line:#E4E3DE;
  --line-2:#D3D1CA;
  --line-input:#DCDAD4;
  --danger:#B4453C;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(16,24,22,.04);
  --shadow-2:0 10px 28px -14px rgba(16,24,22,.16);
  --shadow-3:0 20px 48px -20px rgba(16,24,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"DIN Alternate","Helvetica Neue",system-ui,sans-serif;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--base);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
@media(min-width:992px) and (max-width:1279px){.container{max-width:960px}}
@media(max-width:767px){:root{--gutter:20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,24,22,.42)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:26px;height:26px;color:var(--primary);flex:none}
.brand-text{
  font-size:17px;font-weight:600;letter-spacing:.01em;
  color:var(--text);white-space:nowrap;
}
.nav-list{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--text-2);
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);border:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box svg{width:16px;height:16px;color:var(--text-3);flex:none}
.search-box input{
  border:0;background:transparent;outline:none;width:132px;font-size:14px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{
  background:var(--surface);border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(18,97,91,.12);
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:12px;width:20px;height:1.8px;background:var(--text);
  border-radius:2px;transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";left:0;top:-6px}
.nav-toggle span::after{content:"";left:0;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),
             border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:active{transform:scale(.985)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{background:var(--surface);border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-50);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text-2)}
.btn-ghost:hover{border-color:var(--text-3);color:var(--text);transform:translateY(-2px)}
.btn-on-dark{background:transparent;border-color:rgba(244,246,245,.4);color:#F4F6F5}
.btn-on-dark:hover{border-color:#F4F6F5;background:rgba(244,246,245,.08)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;line-height:1.6;font-weight:600;letter-spacing:.02em;
}
.badge-primary{background:var(--primary-50);color:var(--primary-700)}
.badge-accent{background:var(--accent);color:#fff}
.badge-soft{background:var(--surface-2);color:var(--text-2)}
.seal{width:10px;height:10px;border-radius:2px;background:var(--accent);display:inline-block}

/* ---------- breadcrumb ---------- */
.crumb{margin:28px 0 0;font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--text-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--line-2)}
.crumb .current{color:var(--text-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-wrap{padding-top:26px}
.article-head{max-width:820px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-family:var(--font-serif);
  font-size:34px;line-height:1.42;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:var(--text-3);
}
.article-meta b{font-weight:500;color:var(--text-2)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-2)}
.share-set{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-btn{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-3);
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.share-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-50)}
.share-btn svg{width:16px;height:16px}

/* ---------- layout ---------- */
.content-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 220px;
  gap:56px;padding:44px 0 8px;
}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:#232827}
.article-body > * + *{margin-top:24px}
.article-body p{margin:0}
.article-body h2{
  font-family:var(--font-serif);font-size:24px;line-height:1.5;font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{
  font-family:var(--font-serif);font-size:20px;line-height:1.55;font-weight:700;
  margin:32px 0 12px;color:var(--primary-700);
}
.article-body h4{font-size:16px;font-weight:600;margin:24px 0 8px}
.article-body ul,.article-body ol{margin:18px 0;padding-left:4px}
.article-body li{position:relative;padding-left:20px;margin:8px 0}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--primary);opacity:.75;
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.18em;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--accent);
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  border-left:3px solid var(--accent);background:var(--surface-2);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;color:var(--text-2);
}
.article-body img{border-radius:12px;margin:26px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:26px 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-btn);overflow:hidden;
}
.article-body th{
  background:var(--primary-50);color:var(--primary-700);
  text-align:left;font-weight:600;padding:12px 16px;border-bottom:1px solid var(--line);
}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:14px;
  background:var(--surface-2);padding:2px 6px;border-radius:6px;color:var(--primary-700);
}
.article-body pre{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-btn);padding:18px;overflow:auto;
}
.article-body pre code{background:none;padding:0;color:var(--text)}
.article-body a{
  color:var(--primary);text-decoration:underline;
  text-decoration-color:rgba(18,97,91,.35);text-underline-offset:4px;
  transition:text-decoration-color .22s var(--ease);
}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}

/* ---------- aside ---------- */
.article-aside{position:relative}
.aside-sticky{position:sticky;top:96px;display:grid;gap:24px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;
}
.aside-card h4{
  font-size:14px;font-weight:600;color:var(--text-2);
  display:flex;align-items:center;gap:8px;margin-bottom:12px;
}
.toc-list{display:grid;gap:4px}
.toc-list a{
  display:block;font-size:13px;line-height:1.7;color:var(--text-2);
  padding:5px 10px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--primary);background:var(--surface-3);border-left-color:var(--primary)}
.aside-links{display:grid;gap:10px}
.aside-links a{
  display:flex;gap:8px;align-items:flex-start;
  font-size:13px;line-height:1.7;color:var(--text-2);
  transition:color .2s var(--ease);
}
.aside-links a:hover{color:var(--primary)}
.aside-links a::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);
  opacity:.4;margin-top:9px;flex:none;
}

/* ---------- article footer ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;font-size:13px;
  background:var(--surface-2);color:var(--text-2);border:1px solid var(--line);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.tag:hover{background:var(--primary-50);color:var(--primary-700);border-color:rgba(18,97,91,.25)}
.article-foot-nav{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- empty state ---------- */
.empty-state{
  min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:48px 28px;
}
.empty-state svg{width:48px;height:48px;color:var(--primary);opacity:.3}
.empty-state p{color:var(--text-2);font-size:16px}

/* ---------- related ---------- */
.related{padding:96px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{
  font-family:var(--font-serif);font-size:30px;line-height:1.35;font-weight:700;letter-spacing:0;
}
.section-head p{font-size:14px;color:var(--text-3);margin-top:6px}
.link-more{
  font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid transparent;transition:border-color .24s var(--ease);
}
.link-more:hover{border-bottom-color:var(--primary)}
.related-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.rcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(18,97,91,.3)}
.rcard-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rcard:hover .rcard-media img{transform:scale(1.03)}
.rcard-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{
  font-family:var(--font-serif);font-size:18px;line-height:1.55;font-weight:700;
  transition:color .22s var(--ease);
}
.rcard:hover .rcard-body h3{color:var(--primary)}
.rcard-body p{font-size:14px;color:var(--text-2);line-height:1.8}
.rcard-meta{margin-top:auto;font-size:13px;color:var(--text-3);display:flex;gap:14px;align-items:center}

/* ---------- CTA ---------- */
.cta-bar{margin-top:96px;background:var(--dark);color:#F4F6F5;padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.cta-copy h2{
  font-family:var(--font-serif);font-size:30px;line-height:1.4;font-weight:700;color:#fff;
}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(244,246,245,.7);line-height:1.85}
.cta-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;color:rgba(244,246,245,.72)}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.06);border:1px solid rgba(244,246,245,.24);
  color:#fff;outline:none;font-size:15px;
  transition:border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(244,246,245,.42)}
.field input:focus,.field textarea:focus{
  border-color:#7FC5BD;background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(126,197,189,.16);
}
.field.has-error input,.field.has-error textarea{border-color:#E0796F;background:rgba(224,121,111,.08)}
.field-msg{font-size:12px;color:#E0796F;display:none}
.field.has-error .field-msg{display:block}
.form-success{
  grid-column:1 / -1;display:none;align-items:center;gap:12px;
  padding:16px 18px;border-radius:var(--radius-input);
  background:rgba(126,197,189,.12);border:1px solid rgba(126,197,189,.4);
  color:#EAF5F3;font-size:14px;
}
.form-success.is-visible{display:flex}
.form-success svg{width:20px;height:20px;color:#7FC5BD;flex:none}
.cta-form .btn{grid-column:1 / -1;height:50px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#F4F6F5;padding:64px 0 28px;margin-top:0}
.cta-bar + .site-footer{margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{color:#7FC5BD}
.footer-brand span{font-size:17px;font-weight:600;letter-spacing:.01em;color:#fff}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(244,246,245,.62);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;color:#F4F6F5;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:13px;color:rgba(244,246,245,.62);transition:color .22s var(--ease)}
.footer-col ul a:hover{color:#7FC5BD}
.footer-contact li{font-size:13px;color:rgba(244,246,245,.62);line-height:1.8}
.footer-contact b{color:rgba(244,246,245,.86);font-weight:500}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,246,245,.14);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(244,246,245,.5);
}
.footer-bottom a{color:rgba(244,246,245,.62);transition:color .22s var(--ease)}
.footer-bottom a:hover{color:#7FC5BD}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1279px){
  .related-grid{grid-template-columns:1.2fr 1fr 1fr}
}
@media(max-width:1100px){
  .content-layout{grid-template-columns:minmax(0,1fr) 200px;gap:40px}
}
@media(max-width:991px){
  .header-inner{height:60px;gap:16px}
  .nav-toggle{display:block}
  .search-box{display:none}
  .nav-list{
    position:fixed;top:60px;right:0;width:min(320px,84vw);
    height:calc(100vh - 60px);background:var(--surface);
    border-left:1px solid var(--line);box-shadow:var(--shadow-3);
    flex-direction:column;align-items:stretch;gap:0;padding:16px 22px 32px;
    transform:translateX(102%);transition:transform .3s var(--ease);z-index:99;overflow-y:auto;
  }
  .nav-list.is-open{transform:none}
  .nav-link{padding:15px 2px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{border-bottom-color:var(--primary)}
  .content-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:36px}
  .article-aside{display:none}
  .article-head h1{font-size:30px}
  .related{padding-top:72px}
  .related-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  body.nav-open{overflow:hidden}
}
@media(max-width:767px){
  .article-head h1{font-size:27px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .share-set{margin-left:0;width:100%}
  .related-grid{grid-template-columns:1fr}
  .cta-bar{padding:56px 0}
  .cta-copy h2{font-size:23px}
  .cta-form{grid-template-columns:1fr}
  .related,.cta-bar{margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:flex-start}
  .rcard-body{padding:20px}
}
@media(max-width:560px){
  .brand-text{font-size:15px}
  .btn{height:44px;padding:0 18px}
  .article-meta{gap:8px 14px}
  .aside-card{padding:16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --primary:#12615B;
  --primary-700:#0B403C;
  --primary-50:#EEF5F4;
  --accent:#C2703C;
  --accent-dark:#AE6134;
  --base:#F7F6F3;
  --surface:#FFFFFF;
  --surface-2:#F1F0EC;
  --dark:#0E1614;
  --text:#1A1F1E;
  --text-2:#5C6663;
  --text-3:#8C9694;
  --text-inv:#F4F6F5;
  --line:#E4E3DE;
  --line-strong:#D3D1CA;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(16,24,22,.04);
  --shadow-hover:0 10px 28px -14px rgba(16,24,22,.16);
  --shadow-float:0 20px 48px -20px rgba(16,24,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.85;
  color:var(--text);background:var(--base);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(18,97,91,.16)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background-color 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-accent:active{transform:scale(.985)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.985)}
.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-50);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.985)}
.btn-on-dark{background:transparent;color:var(--text-inv);border-color:rgba(244,246,245,.38)}
.btn-on-dark:hover{background:rgba(244,246,245,.1);transform:translateY(-2px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;pointer-events:none}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 6px rgba(0,0,0,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary-700);flex:none}
.brand-mark{width:30px;height:30px;flex:none;color:var(--primary)}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-link{position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);transition:color 220ms var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border-radius:999px;background:var(--surface-2);border:1px solid transparent;
  transition:background-color 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,97,91,.12)}
.search-box svg{width:16px;height:16px;color:var(--text-3);flex:none}
.search-box input{border:0;background:transparent;outline:none;width:140px;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:var(--text-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform 240ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle span{position:relative}
.nav-toggle span::before{content:"";position:absolute;top:-6px;left:0}
.nav-toggle span::after{content:"";position:absolute;top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,22,20,.45);opacity:0;visibility:hidden;
  transition:opacity 260ms var(--ease),visibility 260ms var(--ease);z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:min(330px,86vw);height:100%;background:#fff;z-index:200;
  transform:translateX(102%);transition:transform 300ms var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.drawer.is-open{transform:none;box-shadow:var(--shadow-float)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--text-2);
}
.drawer-close:hover{color:var(--primary);border-color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 12px;border-radius:var(--r-btn);font-size:15px;color:var(--text-2)}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--primary-50);color:var(--primary-700)}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:999px;background:var(--surface-2);border:1px solid transparent}
.drawer-search:focus-within{background:#fff;border-color:var(--primary)}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;
  color:var(--primary);background:var(--primary-50);padding:5px 12px;border-radius:var(--r-badge);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--primary)}
h2.section-title{font-family:var(--serif);font-size:30px;letter-spacing:0;color:var(--text)}
.section-sub{margin-top:14px;font-size:15px;color:var(--text-2)}
.cloud-line{height:1px;background:linear-gradient(90deg,transparent,rgba(18,97,91,.18),transparent);border:0;margin:0}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;padding:56px 0 0;background:var(--base);overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:420px;
  background:radial-gradient(60% 70% at 50% 0%,rgba(18,97,91,.07),transparent 70%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.cat-hero-inner{position:relative;max-width:780px;margin:0 auto;text-align:center}
.breadcrumb{
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);margin-bottom:20px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--text-2);transition:color 220ms var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--text-3)}
.cat-hero h1{
  font-family:var(--serif);font-size:44px;letter-spacing:-.01em;line-height:1.28;color:var(--text);
}
.cat-hero .hero-lead{
  margin:18px auto 0;max-width:660px;font-size:16px;color:var(--text-2);
}
.hero-meta{
  display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;
  margin-top:26px;font-size:14px;color:var(--text-3);
}
.hero-meta b{font-family:var(--serif);font-size:20px;color:var(--primary);margin-right:6px}

.anchor-bar{
  position:sticky;top:68px;z-index:60;margin-top:42px;
  background:rgba(247,246,243,.94);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.anchor-inner{
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 0;flex-wrap:wrap;
}
.anchor-link{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--text-2);
  transition:background-color 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
}
.anchor-link:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-50);transform:translateY(-2px)}

/* ---------- 提示条 ---------- */
.info-bar{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--r-card);
  background:var(--primary-50);border:1px solid rgba(18,97,91,.16);
  font-size:14px;color:var(--primary-700);margin-bottom:8px;
}
.info-bar svg{width:20px;height:20px;flex:none;color:var(--primary)}
.info-bar strong{font-weight:600}

/* ---------- 图文内容块 ---------- */
.doc-wrap{padding:72px 0 88px}
.doc-block{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:64px 0;border-bottom:1px solid var(--line);
}
.doc-block:first-of-type{padding-top:48px}
.doc-block:last-of-type{border-bottom:0;padding-bottom:0}
.doc-block.reverse .doc-media{order:-1}
.chapter-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;
  color:var(--primary);background:var(--primary-50);padding:5px 11px;border-radius:var(--r-badge);
  margin-bottom:16px;
}
.chapter-tag::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--primary)}
.doc-text h2{font-family:var(--serif);font-size:30px;margin-bottom:18px}
.doc-text p{font-size:16px;color:var(--text-2);margin-bottom:16px}
.points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.points li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2)}
.points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--primary);opacity:.72;
}
.doc-media{position:relative}
.doc-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform 320ms var(--ease),box-shadow 320ms var(--ease);
}
.doc-media:hover img{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.doc-media figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center}

/* ---------- 卡片栅格 ---------- */
.card-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.card-stack{display:grid;gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(18,97,91,.3);box-shadow:var(--shadow-hover)}
.card-media{overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;color:var(--text)}
.card-body p{font-size:14px;color:var(--text-2)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px}
.card-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.card-link::after{content:"→";transition:transform 240ms var(--ease)}
.card:hover .card-link::after{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;background:var(--primary-50);color:var(--primary-700);
}
.badge-accent{background:var(--accent);color:#fff}
.card--wide .card-media img{aspect-ratio:16/10}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:14px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;color:var(--text);transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:16px;height:16px;flex:none;color:var(--primary)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:7px;width:16px;height:2px;border-radius:2px;background:currentColor;
  transition:transform 300ms var(--ease),opacity 300ms var(--ease);
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::after{transform:rotate(180deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a p{font-size:15px;color:var(--text-2);padding-bottom:22px;max-width:860px}

/* ---------- CTA ---------- */
.cta-strip{background:var(--dark);color:var(--text-inv);padding:64px 0}
.cta-inner{display:grid;grid-template-columns:1.15fr auto;gap:32px;align-items:center}
.cta-inner h2{font-family:var(--serif);font-size:28px;color:var(--text-inv);margin-bottom:12px}
.cta-inner p{font-size:15px;color:rgba(244,246,245,.72);max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--primary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms var(--ease);
  z-index:120;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--primary-50);border-color:var(--primary)}
.to-top svg{width:20px;height:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--text-inv);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-inv);font-size:16px;font-weight:600;margin-bottom:16px}
.footer-brand .brand-mark{color:#7FC8BF;width:28px;height:28px}
.footer-desc{font-size:13px;color:rgba(244,246,245,.6);max-width:320px}
.footer-col h4{font-size:14px;color:var(--text-inv);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:rgba(244,246,245,.66);transition:color 220ms var(--ease)}
.footer-col a:hover{color:#7FC8BF}
.footer-contact b{color:rgba(244,246,245,.9);font-weight:600}
.footer-contact span{color:rgba(244,246,245,.6)}
.footer-contact li{font-size:13px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,246,245,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,246,245,.5);
}
.footer-bottom a{color:rgba(244,246,245,.6);transition:color 220ms var(--ease)}
.footer-bottom a:hover{color:#7FC8BF}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:960px}
  .cat-hero h1{font-size:40px}
}
@media (max-width:991px){
  .nav-list{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .brand-text{font-size:16px}
  .cat-hero{padding-top:40px}
  .cat-hero h1{font-size:34px}
  .doc-block{grid-template-columns:1fr;gap:28px;padding:48px 0}
  .doc-block.reverse .doc-media{order:0}
  .doc-media img{aspect-ratio:16/9}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:60px;gap:12px}
  .section{padding:56px 0}
  .cat-hero h1{font-size:30px}
  .cat-hero .hero-lead{font-size:15px}
  h2.section-title{font-size:23px}
  .doc-text h2{font-size:23px}
  .anchor-bar{top:60px}
  .anchor-inner{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding:10px 0;scrollbar-width:none}
  .anchor-inner::-webkit-scrollbar{display:none}
  .anchor-link{flex:none}
  .doc-wrap{padding:40px 0 56px}
  .doc-block{padding:36px 0}
  .card-body{padding:20px}
  .cta-strip{padding:48px 0}
  .cta-inner h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:560px){
  .btn{height:44px}
  .btn-sm{height:40px}
  .cat-hero h1{font-size:27px}
  .hero-meta{gap:14px;font-size:13px}
  .info-bar{align-items:flex-start}
  .points li{font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --primary:#12615B;
  --primary-700:#0B403C;
  --primary-50:#EEF5F4;
  --accent:#C2703C;
  --accent-600:#AC6231;
  --base:#F7F6F3;
  --surface:#FFFFFF;
  --surface-2:#F1F0EC;
  --dark:#0E1614;
  --text:#1A1F1E;
  --text-2:#5C6663;
  --text-3:#8C9694;
  --inverse:#F4F6F5;
  --line:#E4E3DE;
  --line-strong:#D3D1CA;
  --danger:#C0503F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(16,24,22,.04);
  --shadow-2:0 10px 28px -14px rgba(16,24,22,.16);
  --shadow-3:0 20px 48px -20px rgba(16,24,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --nums:Inter,"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent:active{transform:translateY(-1px) scale(.985)}
.btn-outline{background:var(--surface);color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-50);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.985)}
.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-50)}
.btn-ghost-light{background:transparent;color:var(--inverse);border-color:rgba(244,246,245,.36)}
.btn-ghost-light:hover{border-color:var(--inverse);background:rgba(244,246,245,.08)}
.btn:disabled,.btn.is-disabled{opacity:.4;pointer-events:none;cursor:not-allowed}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.7;
  background:var(--primary-50);color:var(--primary-700);
}
.badge-accent{background:var(--accent);color:#fff}
.stamp-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  letter-spacing:.08em;
}
.stamp-tag::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--primary)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 6px rgba(0,0,0,.05);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -10px rgba(16,24,22,.22)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;color:var(--primary)}
.brand-mark{width:28px;height:28px;flex:0 0 auto}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text)}
.nav-list{display:flex;align-items:center;gap:26px;flex:1 1 auto;justify-content:center}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color .24s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  background:var(--surface-2);border:1px solid transparent;border-radius:999px;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-box svg{width:16px;height:16px;color:var(--text-3);flex:0 0 auto}
.search-box input{width:150px;border:0;background:transparent;color:var(--text);outline:none;font-size:14px}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,97,91,.12)}
.search-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--text-2);cursor:pointer;
}
.search-toggle svg{width:18px;height:18px}
.nav-toggle{
  display:none;position:relative;width:40px;height:40px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:11px;right:11px;height:1.6px;border-radius:2px;background:var(--text);
  transition:transform .24s var(--ease),background-color .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span{top:19px}
.nav-toggle span::before{content:"";left:0;right:0;top:-6px}
.nav-toggle span::after{content:"";left:0;right:0;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.mobile-search{display:none}
.nav-mask{
  display:none;position:fixed;inset:68px 0 0;background:rgba(14,22,20,.4);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.nav-mask.is-open{opacity:1;pointer-events:auto}

/* ---------- 首屏 ---------- */
.cat-hero{position:relative;background:var(--base);padding:34px 0 84px;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;right:-140px;bottom:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,97,91,.07),rgba(18,97,91,0) 68%);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,97,91,.16),transparent);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:26px}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text-3)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero-title{font-family:var(--serif);font-size:44px;line-height:1.25;letter-spacing:-.01em;margin-top:14px}
.hero-sub{font-size:16.5px;color:var(--text-2);line-height:1.85;max-width:560px;margin-top:18px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}
.hero-facts li{display:flex;flex-direction:column;gap:2px}
.hero-facts b{font-family:var(--nums);font-size:22px;color:var(--primary);letter-spacing:-.01em;line-height:1.3}
.hero-facts span{font-size:13px;color:var(--text-3)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;
  box-shadow:var(--shadow-2);border:1px solid var(--line);
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:40px}
.section-title{font-family:var(--serif);font-size:30px;letter-spacing:0}
.section-lead{font-size:15.5px;color:var(--text-2);margin-top:12px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cloud-divider{height:1px;background:linear-gradient(90deg,rgba(18,97,91,.14),rgba(18,97,91,.02));margin:0}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding-top:8px}
.timeline::before{
  content:"";position:absolute;left:50%;top:16px;bottom:16px;width:1px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item{display:grid;grid-template-columns:1fr 96px 1fr;align-items:start;margin-bottom:36px}
.tl-item:last-child{margin-bottom:0}
.tl-card{
  grid-column:1;text-align:right;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(18,97,91,.3)}
.tl-item:nth-child(even) .tl-card{grid-column:3;text-align:left}
.tl-marker{grid-column:2;justify-self:center;align-self:start;display:flex;flex-direction:column;align-items:center;gap:8px}
.tl-num{
  display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;
  background:var(--surface);border:1px solid rgba(18,97,91,.35);
  font-family:var(--serif);font-size:16px;font-weight:600;color:var(--primary);
}
.tl-title{font-size:20px;margin-bottom:10px}
.tl-meta{margin-bottom:12px}
.tl-time{
  display:inline-block;font-size:12px;font-weight:600;color:var(--text-2);
  background:var(--surface-2);border-radius:var(--radius-badge);padding:2px 9px;
}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 服务保障 ---------- */
.assure-list{border-top:1px solid var(--line)}
.assure-row{
  display:grid;grid-template-columns:56px 250px 1fr;gap:26px;align-items:center;
  padding:26px 8px;border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease);
}
.assure-row:hover{background:#FAF9F6}
.assure-icon{
  display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
}
.assure-icon svg{width:22px;height:22px}
.assure-title{font-size:18px}
.assure-row p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 准备事项 ---------- */
.prepare-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:stretch}
.prepare-panels{display:grid;gap:24px}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.panel:hover{border-color:rgba(18,97,91,.3);box-shadow:var(--shadow-2)}
.panel h3{font-size:18px;margin-bottom:6px}
.panel .panel-note{font-size:13.5px;color:var(--text-3);margin-bottom:16px}
.check-list li{position:relative;padding:10px 0 10px 22px;font-size:15px;color:var(--text-2);border-bottom:1px dashed var(--line)}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:2px;top:19px;width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.prepare-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);min-height:280px}
.prepare-media img{width:100%;height:100%;object-fit:cover}
.prepare-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--inverse);
  background:linear-gradient(180deg,rgba(14,22,20,0),rgba(14,22,20,.72));
}

/* ---------- 表单 / CTA ---------- */
.consult{background:var(--dark);color:var(--inverse);padding:88px 0}
.consult-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.consult h2{font-family:var(--serif);font-size:30px;color:#fff}
.consult .consult-lead{font-size:15.5px;color:rgba(244,246,245,.7);margin-top:14px}
.consult-points{margin-top:26px;display:grid;gap:12px}
.consult-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(244,246,245,.75)}
.consult-points svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--accent)}
.consult-form{
  background:rgba(255,255,255,.04);border:1px solid rgba(244,246,245,.14);
  border-radius:var(--radius-card);padding:30px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:13.5px;color:rgba(244,246,245,.72)}
.form-field .req{color:var(--accent)}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-input);
  border:1px solid rgba(244,246,245,.26);background:rgba(255,255,255,.05);color:#fff;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.form-field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field select option{color:var(--text)}
.form-field input::placeholder,.form-field textarea::placeholder{color:rgba(244,246,245,.4)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--accent);background:rgba(255,255,255,.09);
}
.form-field.is-error input,.form-field.is-error textarea,.form-field.is-error select{border-color:#E08B7E}
.field-msg{font-size:12px;color:#F0A79B;min-height:0}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.form-actions .btn{min-width:180px}
.form-hint{font-size:12.5px;color:rgba(244,246,245,.55)}
.form-success{display:none;align-items:flex-start;gap:14px;padding:22px;border:1px solid rgba(18,97,91,.5);background:rgba(18,97,91,.16);border-radius:var(--radius-card)}
.form-success.is-visible{display:flex}
.form-success svg{width:26px;height:26px;color:#7FC7BD;flex:0 0 auto;margin-top:2px}
.form-success h3{font-size:17px;color:#fff;margin-bottom:6px}
.form-success p{font-size:14px;color:rgba(244,246,245,.75)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--inverse);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:9px;color:#fff;font-size:17px;font-weight:600}
.footer-brand .brand-mark{color:#7FC7BD}
.footer-desc{font-size:13px;color:rgba(244,246,245,.6);line-height:1.85;margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;color:var(--inverse);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13px;color:rgba(244,246,245,.62);transition:color .2s var(--ease)}
.footer-col ul a:hover{color:#8FD3C9}
.footer-contact li{font-size:13px;color:rgba(244,246,245,.62);line-height:1.8}
.footer-contact b{color:rgba(244,246,245,.85);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,246,245,.12);
  font-size:12.5px;color:rgba(244,246,245,.5);
}
.footer-bottom a{color:rgba(244,246,245,.6)}
.footer-bottom a:hover{color:#8FD3C9}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (min-width:992px) and (max-width:1279px){
  .container{max-width:960px}
}
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .hero-title{font-size:38px}
  .search-box input{width:110px}
}
@media (max-width:991px){
  .container{max-width:none}
  .nav-list{
    position:fixed;top:68px;right:0;bottom:0;width:min(78vw,320px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    background:var(--surface);padding:20px 24px 32px;margin:0;
    transform:translateX(103%);transition:transform .3s var(--ease);
    box-shadow:var(--shadow-3);z-index:120;overflow-y:auto;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-link{padding:15px 2px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-toggle{display:block}
  .nav-mask{display:block}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-title{font-size:34px}
  .hero-sub{max-width:none}
  .section{padding:72px 0}
  .section-title{font-size:26px}
  .consult{padding:72px 0}
  .consult-grid{grid-template-columns:1fr;gap:36px}
  .prepare-grid{grid-template-columns:1fr}
  .prepare-media{min-height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:60px;gap:12px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:24px;height:24px}
  .header-actions .search-box{display:none}
  .search-toggle{display:inline-flex}
  .nav-list{top:60px}
  .nav-mask{inset:60px 0 0}
  .mobile-search{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0}
  .mobile-search.is-open{display:block}
  .mobile-search .search-box{display:flex;width:100%}
  .mobile-search .search-box input{width:100%}
  .cat-hero{padding:24px 0 56px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-facts{gap:16px 28px;margin-top:24px;padding-top:20px}
  .hero-facts b{font-size:19px}
  .section{padding:56px 0}
  .section-title{font-size:23px}
  .section-head{margin-bottom:30px}
  .timeline::before{left:22px;transform:none}
  .tl-item{grid-template-columns:46px 1fr;gap:16px;margin-bottom:22px}
  .tl-marker{grid-column:1;justify-self:start;align-self:start}
  .tl-item .tl-card,.tl-item:nth-child(even) .tl-card{grid-column:2;text-align:left;padding:20px}
  .tl-num{width:40px;height:40px;font-size:14px}
  .tl-title{font-size:18px}
  .assure-row{grid-template-columns:48px 1fr;gap:12px 16px;padding:20px 4px;align-items:start}
  .assure-row p{grid-column:2}
  .assure-title{font-size:17px;align-self:center}
  .assure-icon{width:44px;height:44px}
  .panel{padding:20px}
  .consult{padding:56px 0}
  .consult h2{font-size:23px}
  .consult-form{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .btn-sm{height:38px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .badge{white-space:normal}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1;transform:none}
}