/* roulang page: index */
:root{
  --ink:#0E2E2B;
  --ink-90:rgba(14,46,43,.9);
  --aqua:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --paper-top:#FBF9F5;
  --band:#F1EDE3;
  --white:#FFFFFF;
  --text:#1B2422;
  --text-2:#5A6663;
  --text-3:#7C8783;
  --line:#E2DCD1;
  --line-soft:#EDE7DB;
  --line-strong:#D8D1C5;
  --line-dark:rgba(247,244,238,.14);
  --on-dark:rgba(247,244,238,.78);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:6px;
  --sh-card:0 8px 24px rgba(14,46,43,.06);
  --sh-lift:0 12px 32px rgba(14,46,43,.10);
  --sec-y:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--coral)}
h1,h2,h3,h4,h5,h6{font-family:var(--serif);color:var(--ink);margin:0 0 16px;line-height:1.28;font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:12px 20px;z-index:200}
.skip:focus{left:8px;top:8px}
/* ===== 头部 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,249,245,.96);
  -webkit-backdrop-filter:saturate(140%) blur(8px);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(14,46,43,.06)}
.tool-row{height:32px;overflow:hidden;transition:height .3s var(--ease),opacity .3s var(--ease)}
.site-header.is-scrolled .tool-row{height:0;opacity:0}
.tool-inner{display:flex;align-items:center;justify-content:flex-end;gap:28px;height:32px;font-size:12.5px;color:var(--text-3)}
.tool-lang{color:var(--aqua)}
.nav-inner{display:flex;align-items:center;gap:32px;min-height:52px;transition:min-height .3s var(--ease)}
.site-header.is-scrolled .nav-inner{min-height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:var(--ink);border-radius:9px;transition:transform .3s var(--ease)}
.brand-mark svg{width:20px;height:20px}
.site-header.is-scrolled .brand-mark{transform:scale(.9)}
.brand-text{font-family:var(--serif);font-weight:900;font-size:17px;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.nav-tabs{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-chip{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;
  border:1px solid var(--line-strong);color:#3A4744;font-size:15px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-chip:hover{background:#EFE9DD;color:var(--ink);border-color:var(--line-strong)}
.nav-chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.nav-chip.is-active:hover{background:var(--ink);color:var(--paper)}
.nav-cta{flex:0 0 auto;margin-left:32px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:10px;background:var(--white);align-items:center;justify-content:center;flex-direction:column;gap:5px;flex:0 0 auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-cta{display:none}
/* ===== 通用组件 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 32px;
  border-radius:var(--r-btn);font-size:16px;font-weight:500;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  min-width:44px;text-align:center;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--coral);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-card)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{height:42px;padding:0 22px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:15px;color:var(--ink)}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}
.tag{display:inline-block;font-size:12px;letter-spacing:.12em;padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);color:var(--aqua);background:transparent;margin-bottom:20px}
.chip{display:inline-block;font-size:12px;padding:4px 10px;border-radius:999px;background:var(--band);color:var(--ink);line-height:1.6}
.section{padding:var(--sec-y) 0}
.section-head{margin-bottom:48px}
.section-head h2{font-size:36px;margin-bottom:16px}
.section-head p{color:var(--text-2);max-width:640px;margin:0}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.18em;color:var(--aqua);margin-bottom:18px}
/* ===== Hero ===== */
.hero{padding:88px 0 96px;position:relative;overflow:hidden}
.hero-copy{position:relative;z-index:2}
.hero-title{font-size:clamp(32px,4.6vw,58px);line-height:1.12;font-weight:900;letter-spacing:-.01em;margin-bottom:24px}
.hero-title span{display:block}
.hero-title-line2{position:relative;padding-left:64px;font-size:.72em;line-height:1.34}
.hero-title-line2::before{content:"";position:absolute;left:0;top:.58em;width:48px;height:3px;background:var(--coral);border-radius:2px}
.hero-sub{font-size:18px;line-height:1.75;color:var(--text-2);max-width:520px;margin-bottom:36px}
.hero-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-bottom:48px}
.hero-trust{display:flex;border-top:1px solid var(--line);padding-top:24px;margin:0}
.hero-trust li{flex:1 1 0;padding-right:18px}
.hero-trust li+li{border-left:1px solid var(--line);padding-left:22px}
.hero-trust strong{display:block;font-size:14px;color:var(--ink);font-weight:700;margin-bottom:4px}
.hero-trust span{display:block;font-size:12.5px;color:var(--text-3);line-height:1.6}
.hero-visual{position:relative;padding:20px 0 0 20px}
.hero-img-wrap{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;position:relative;z-index:1;box-shadow:var(--sh-card);background:var(--band)}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover}
.hero-frame{position:absolute;top:0;right:-18px;width:62%;height:62%;border:1px solid rgba(14,46,43,.42);border-radius:var(--r-lg);z-index:0;pointer-events:none}
/* ===== 痛点 ===== */
.pain{background:var(--ink);color:var(--paper);padding:var(--sec-y) 0}
.pain h2{color:#F7F4EE;font-size:34px;line-height:1.3;margin-bottom:20px}
.pain-lead{color:var(--on-dark);font-size:15px;max-width:300px}
.pain-list{margin:0}
.pain-list li{display:flex;gap:24px;padding:26px 0}
.pain-list li+li{border-top:1px solid var(--line-dark)}
.pain-list li:first-child{padding-top:0}
.pain-num{font-family:var(--serif);font-weight:900;font-size:20px;color:var(--coral);line-height:1.4;flex:0 0 auto;min-width:34px}
.pain-list h3{color:#F7F4EE;font-size:20px;font-family:var(--sans);font-weight:700;margin-bottom:8px;line-height:1.45}
.pain-list p{color:var(--on-dark);font-size:15px;line-height:1.8;margin:0}
/* ===== 解决路径 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:48px 0}
.split+.split{border-top:1px solid var(--line-soft)}
.split-reverse .split-text{order:2}
.badge{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--coral);border-bottom:1px solid rgba(217,85,47,.4);padding-bottom:2px;margin-bottom:16px}
.split-text h3{font-size:24px;margin-bottom:16px}
.split-text p{color:var(--text-2);font-size:16px}
.dot-list{margin-top:20px}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2);line-height:1.9}
.dot-list li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;background:var(--aqua);border-radius:1px}
.split-media{border-radius:var(--r-card);overflow:hidden;background:var(--band)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
/* ===== 数据 ===== */
.stats{background:var(--band)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:8px 28px;border-left:1px solid var(--line-strong)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{display:block;font-family:var(--serif);font-weight:900;font-size:44px;line-height:1.05;color:var(--ink);letter-spacing:-.02em}
.stat-num em{font-style:normal;font-size:14px;color:var(--coral);margin-left:6px;font-family:var(--sans);font-weight:500;letter-spacing:0}
.stat-label{display:block;margin-top:12px;font-size:14px;color:var(--text-2);line-height:1.6}
.stats-note{margin:40px 0 0;font-size:14px;color:var(--text-3);line-height:1.8;max-width:760px}
.stats-band{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-card);margin-top:32px}
/* ===== 证言 ===== */
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.voice-col{display:flex;flex-direction:column;gap:32px}
.voice-col-offset{padding-top:44px}
.voice-card{background:var(--white);border:1px solid #E6E0D4;border-radius:var(--r-card);padding:32px;margin:0;transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.voice-card:hover{transform:translateY(-2px);border-color:rgba(14,46,43,.35);box-shadow:var(--sh-lift)}
.voice-quote{display:block;font-family:var(--serif);font-size:48px;line-height:.7;color:var(--coral);margin-bottom:14px}
.voice-text{font-size:16px;line-height:1.85;color:var(--text-2);margin:0}
.voice-person{display:flex;align-items:center;gap:12px;margin-top:24px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--band);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:15px;flex:0 0 auto}
.voice-name{font-size:14px;font-weight:700;color:var(--ink);line-height:1.4}
.voice-role{font-size:12.5px;color:var(--text-3);line-height:1.5}
/* ===== 最新信息 ===== */
.latest-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.latest-head h2{font-size:36px;margin:0}
.latest-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px 32px}
.news-card{display:flex;background:var(--white);border:1px solid var(--line-soft);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.news-card:hover{transform:translateY(-2px);border-color:rgba(14,46,43,.35);box-shadow:var(--sh-lift);color:var(--ink)}
.news-card-lg{flex-direction:column;grid-row:span 2}
.news-card-sm{flex-direction:row;align-items:stretch}
.news-thumb{overflow:hidden;background:var(--band);flex:0 0 auto}
.news-card-lg .news-thumb{width:100%;aspect-ratio:16/9}
.news-card-sm .news-thumb{width:40%;aspect-ratio:4/3}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;min-width:0}
.news-card-lg .news-body{padding:28px}
.news-title{font-family:var(--serif);font-size:20px;line-height:1.45;margin:0;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-lg .news-title{font-size:24px}
.news-desc{font-size:14px;line-height:1.75;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3)}
.news-arrow{color:var(--coral);font-size:16px;transition:transform .2s var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.latest-empty{border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:64px 24px;text-align:center;background:rgba(255,255,255,.5)}
.latest-empty svg{width:96px;height:32px;margin:0 auto 20px;display:block;opacity:.35}
.latest-empty p{color:var(--text-2);font-size:15px;margin-bottom:24px}
/* ===== FAQ ===== */
.faq-aside h2{font-size:34px;margin-bottom:16px}
.faq-aside p{color:var(--text-2);font-size:15px;max-width:300px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:22px 0;cursor:pointer;font-size:18px;font-weight:700;color:var(--ink);line-height:1.5}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:24px;line-height:1;color:var(--coral);font-weight:400;transition:transform .2s var(--ease);margin-top:-2px}
.faq-item[open] summary{color:var(--ink)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{font-size:15px;line-height:1.9;color:var(--text-2);padding:0 40px 24px 0;margin:0}
/* ===== CTA ===== */
.cta{background:var(--ink);padding:var(--sec-y) 0}
.cta h2{color:#F7F4EE;font-size:36px;margin-bottom:16px}
.cta-lead{color:var(--on-dark);font-size:16px;max-width:420px;margin-bottom:32px}
.contact-list li{display:flex;gap:16px;padding:14px 0;border-top:1px solid var(--line-dark);font-size:14px;color:var(--on-dark)}
.contact-list li:first-child{border-top:0;padding-top:0}
.contact-list strong{color:#F7F4EE;font-weight:500;min-width:76px;display:inline-block}
.cta-form{background:var(--white);border-radius:var(--r-lg);padding:40px;box-shadow:var(--sh-lift)}
.cta-form h3{font-size:20px;margin-bottom:24px}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:var(--white);font-size:15px;color:var(--text);padding:0 14px;height:48px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 1px var(--ink);background:var(--paper)}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip-group input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.chip-group label{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line-strong);font-size:14px;color:var(--text-2);cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip-group label:hover{background:var(--band);color:var(--ink)}
.chip-group input:checked+label{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip-group input:focus-visible+label{outline:2px solid var(--coral);outline-offset:2px}
.form-note{display:none;margin-top:16px;background:var(--band);border-radius:8px;padding:14px 16px;font-size:14px;color:var(--ink);line-height:1.7}
.form-note.is-visible{display:block}
/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:var(--on-dark);padding:72px 0 0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.footer-brand .brand-mark{background:#F7F4EE}
.footer-brand .brand-mark svg path{stroke:#0E2E2B}
.footer-brand span{font-family:var(--serif);font-weight:900;font-size:17px;color:#F7F4EE}
.footer-desc{font-size:14px;line-height:1.85;color:var(--on-dark);max-width:320px;margin-bottom:20px}
.footer-contact li{font-size:14px;color:var(--on-dark);line-height:2}
.footer-title{font-size:14px;color:#F7F4EE;font-weight:500;margin-bottom:18px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--on-dark);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:#F7F4EE;transform:translateX(2px)}
.footer-bottom{margin-top:56px;border-top:1px solid var(--line-dark);padding:24px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,244,238,.6)}
/* ===== 动画 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
/* ===== 断点 ===== */
@media (max-width:1024px){
  :root{--sec-y:72px}
  .hero{padding:64px 0 72px}
  .hero-visual{padding:24px 0 0 0;margin-top:40px}
  .hero-frame{right:0}
  .split{gap:36px;padding:36px 0}
  .section-head h2,.latest-head h2,.pain h2,.faq-aside h2,.cta h2{font-size:30px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .latest-grid{grid-template-columns:1fr}
  .news-card-lg{grid-row:auto}
  .voice-grid{gap:24px}
  .voice-col-offset{padding-top:24px}
  .cta-form{margin-top:40px}
}
@media (max-width:900px){
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-inner{gap:16px;justify-content:space-between}
  .nav-tabs{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:75;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);padding:88px 24px 40px;
    overflow-y:auto;transform:translateX(100%);
    transition:transform .3s var(--ease);
  }
  .nav-tabs.is-open{transform:translateX(0)}
  .nav-chip{height:52px;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:0;width:100%;justify-content:flex-start;font-size:16px}
  .nav-chip.is-active{background:transparent;color:var(--ink);font-weight:700;border-bottom:1px solid var(--line)}
  .drawer-cta{display:inline-flex;margin-top:28px;width:100%;height:52px}
  .nav-toggle{position:relative;z-index:80}
}
@media (max-width:640px){
  :root{--sec-y:56px}
  body{font-size:15.5px}
  .grid-container{padding-left:18px;padding-right:18px}
  .tool-inner{gap:16px;font-size:11.5px}
  .tool-inner span:nth-child(2){display:none}
  .brand-text{font-size:15px}
  .hero{padding:48px 0 56px}
  .hero-title{font-size:32px;line-height:1.2}
  .hero-title-line2{font-size:.8em;padding-left:44px}
  .hero-title-line2::before{width:32px}
  .hero-sub{font-size:16px;margin-bottom:28px}
  .hero-actions{gap:18px;margin-bottom:32px}
  .hero-actions .btn{width:100%}
  .hero-trust{flex-direction:column;gap:0;padding-top:8px}
  .hero-trust li{padding:14px 0;border-bottom:1px solid var(--line)}
  .hero-trust li+li{border-left:0;padding-left:0}
  .hero-trust li:last-child{border-bottom:0}
  .hero-frame{display:none}
  .pain h2,.faq-aside h2,.cta h2,.section-head h2,.latest-head h2{font-size:26px}
  .pain-list li{gap:16px;padding:22px 0}
  .pain-list h3{font-size:18px}
  .split{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .split-reverse .split-text{order:0}
  .split-text h3,.news-card-lg .news-title{font-size:20px}
  .stats-grid{grid-template-columns:1fr;gap:24px}
  .stat{border-left:0;padding:0;border-top:1px solid var(--line-strong);padding-top:20px}
  .stat:first-child{border-top:0;padding-top:0}
  .stat-num{font-size:36px}
  .stats-band{aspect-ratio:16/9;margin-top:24px}
  .voice-grid{grid-template-columns:1fr;gap:20px}
  .voice-col-offset{padding-top:0}
  .voice-card{padding:24px}
  .news-card-sm{flex-direction:column}
  .news-card-sm .news-thumb{width:100%;aspect-ratio:16/9}
  .news-body{padding:20px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .faq-answer{padding-right:0}
  .latest-empty{padding:44px 20px}
  .cta-form{padding:24px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:40px}
  .site-footer{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0E2E2B;
  --teal:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --band:#F1EDE3;
  --card:#FFFFFF;
  --text:#1B2422;
  --muted:#5A6663;
  --hint:#7C8783;
  --line:#E2DCD1;
  --line-weak:#EDE7DB;
  --line-dark:rgba(247,244,238,.14);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:6px;
  --shadow-card:0 8px 24px rgba(14,46,43,.06);
  --shadow-lift:0 12px 32px rgba(14,46,43,.10);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(217,85,47,.18);color:var(--ink);}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-x{margin-left:-16px;margin-right:-16px;}
.grid-x>.cell{padding-left:16px;padding-right:16px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#FBF9F5;
  border-bottom:1px solid transparent;
  transition:box-shadow .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.site-header.is-scrolled{
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(14,46,43,.06);
}
.tool-row{
  border-bottom:1px solid var(--line-weak);
  font-size:13px;color:var(--hint);
}
.site-header.is-scrolled .tool-row{display:none;}
.tool-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:38px;
}
.tool-inner span{white-space:nowrap;}
.tool-lang{color:var(--teal);}
.nav-row{transition:height .28s var(--ease);}
.nav-inner{
  display:flex;align-items:center;gap:32px;
  height:84px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);border-radius:10px;
  transition:width .28s var(--ease),height .28s var(--ease);
}
.brand-mark svg{width:24px;height:24px;}
.site-header.is-scrolled .brand-mark{width:32px;height:32px;}
.brand-text{
  font-family:var(--serif);font-weight:900;
  font-size:19px;letter-spacing:.02em;color:var(--ink);
  white-space:nowrap;
  transition:font-size .28s var(--ease);
}
.site-header.is-scrolled .brand-text{font-size:17px;}
.nav-tabs{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 0;
}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-chip{
  display:inline-flex;align-items:center;
  height:40px;padding:0 20px;
  border:1px solid #D8D1C5;border-radius:999px;
  font-size:15px;color:#3A4744;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-chip:hover{background:#EFE9DD;color:#3A4744;}
.nav-chip.is-active{
  background:var(--ink);color:var(--paper);border-color:var(--ink);
}
.nav-cta{flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 32px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:16px;font-weight:500;letter-spacing:.02em;
  cursor:pointer;text-align:center;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--coral);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-primary:active{transform:translateY(0);}
.btn-sm{height:44px;padding:0 24px;font-size:15px;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-text{
  height:auto;padding:0;background:none;border:0;color:var(--ink);
  font-weight:500;font-size:16px;
}
.btn-text span{display:inline-block;transition:transform .24s var(--ease);}
.btn-text:hover{color:var(--coral);}
.btn-text:hover span{transform:translateX(4px);}
.drawer-cta{display:none;}
.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:20px;height:2px;margin:4px auto;
  background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Shared section ---------- */
.section{padding:96px 0;}
.section-band{background:var(--band);}
.section-dark{background:var(--ink);color:rgba(247,244,238,.78);}
.eyebrow{
  display:inline-flex;align-items:center;
  height:28px;padding:0 14px;margin-bottom:20px;
  border-radius:999px;background:#EFE9DD;color:var(--ink);
  font-size:12px;letter-spacing:.08em;
}
.eyebrow-light{background:rgba(247,244,238,.12);color:rgba(247,244,238,.9);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{
  font-family:var(--serif);font-weight:900;
  font-size:36px;line-height:1.25;color:var(--ink);
  letter-spacing:.01em;
}
.section-dark .section-head h2{color:var(--paper);}
.section-head p{margin-top:16px;font-size:16px;color:var(--muted);}
.section-dark .section-head p{color:rgba(247,244,238,.72);}

/* ---------- Hero ---------- */
.page-hero{
  padding:88px 0 96px;
  background:
    radial-gradient(1200px 400px at 85% -10%,rgba(78,140,130,.10),transparent 60%),
    var(--paper);
  border-bottom:1px solid var(--line-weak);
}
.hero-grid{align-items:center;}
.page-hero h1{
  font-family:var(--serif);font-weight:900;
  font-size:56px;line-height:1.12;letter-spacing:.01em;
  color:var(--ink);
  margin-bottom:24px;
}
.page-hero h1 .u-line{
  display:block;width:48px;height:4px;background:var(--coral);
  border-radius:2px;margin-bottom:20px;
}
.hero-sub{font-size:19px;color:var(--muted);margin-bottom:36px;max-width:32ch;}
.hero-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:0;
  margin-top:48px;
}
.trust-row li{
  padding:16px 28px 0 0;margin-right:28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--hint);line-height:1.6;
}
.trust-row li strong{display:block;color:var(--ink);font-size:15px;font-weight:700;}
.hero-figure{position:relative;margin:0;}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);
}
.hero-figure::after{
  content:"";position:absolute;inset:-20px -20px auto auto;
  width:60%;height:60%;
  border:1px solid var(--ink);border-radius:var(--r-lg);
  z-index:-1;opacity:.35;
}

/* ---------- Dark panels ---------- */
.panel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--r-card);overflow:hidden;}
.panel-item{background:var(--ink);padding:36px 32px;transition:background .24s var(--ease);}
.panel-item:hover{background:#123933;}
.panel-item h3{
  font-family:var(--serif);font-weight:700;font-size:20px;line-height:1.45;
  color:var(--paper);margin-bottom:14px;
}
.panel-item p{font-size:15px;color:rgba(247,244,238,.72);line-height:1.85;}
.panel-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.panel-tags span{
  display:inline-block;padding:4px 10px;border-radius:999px;
  border:1px solid rgba(247,244,238,.22);
  font-size:12px;color:rgba(247,244,238,.8);
}
.panel-num{
  font-family:var(--serif);font-weight:900;font-size:15px;color:var(--coral);
  letter-spacing:.14em;display:block;margin-bottom:18px;
}

/* ---------- Steps ---------- */
.steps-wrap{max-width:900px;}
.step-item{
  position:relative;
  display:grid;grid-template-columns:88px 1fr;gap:32px;
  padding:32px 0;
  border-top:1px solid var(--line);
}
.step-item:last-child{border-bottom:1px solid var(--line);}
.step-num{
  font-family:var(--serif);font-weight:900;font-size:34px;line-height:1;
  color:var(--coral);letter-spacing:.02em;
}
.step-body h3{
  font-family:var(--serif);font-weight:700;font-size:20px;line-height:1.45;
  color:var(--ink);margin-bottom:10px;
}
.step-body p{font-size:16px;color:var(--muted);line-height:1.9;}
.step-note{
  display:inline-block;margin-top:14px;
  padding:4px 10px;border-radius:999px;
  background:#EFE9DD;color:var(--ink);font-size:12px;
}

/* ---------- Feature split ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.feature-row + .feature-row{margin-top:80px;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);
  transition:transform .4s var(--ease);
}
.feature-media{overflow:hidden;border-radius:var(--r-card);}
.feature-media:hover img{transform:scale(1.04);}
.feature-text .tag-chip{margin-bottom:18px;}
.feature-text h3{
  font-family:var(--serif);font-weight:900;font-size:26px;line-height:1.35;
  color:var(--ink);margin-bottom:16px;
}
.feature-text p{font-size:16px;color:var(--muted);line-height:1.9;}
.dot-list{margin-top:24px;}
.dot-list li{
  position:relative;padding-left:22px;margin-bottom:10px;
  font-size:15px;color:var(--text);line-height:1.8;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;background:var(--teal);border-radius:1px;
}
.tag-chip{
  display:inline-block;padding:4px 10px;border-radius:999px;
  background:#EFE9DD;color:var(--ink);font-size:12px;letter-spacing:.04em;
}

/* ---------- Metrics ---------- */
.metric-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;margin-bottom:48px;
}
.metric{
  padding:8px 28px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:0;padding-left:0;}
.metric strong{
  font-family:var(--serif);font-weight:900;font-size:44px;line-height:1.1;
  color:var(--ink);display:block;
}
.metric strong em{font-style:normal;font-size:15px;color:var(--coral);margin-left:6px;}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--muted);}
.metric-note{font-size:15px;color:var(--muted);max-width:820px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start;}
.faq-aside h2{
  font-family:var(--serif);font-weight:900;font-size:36px;line-height:1.25;
  color:var(--ink);margin-bottom:16px;
}
.faq-aside p{font-size:15px;color:var(--muted);line-height:1.85;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 0;background:none;border:0;cursor:pointer;
  text-align:left;font-family:var(--sans);
  font-size:18px;font-weight:700;line-height:1.5;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--teal);}
.faq-item.is-open .faq-q{color:var(--ink);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 40px 26px 0;
  font-size:15px;color:var(--muted);line-height:1.9;
}

/* ---------- Related + CTA ---------- */
.cat-chips{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:48px;}
.cat-chips a{
  display:inline-flex;align-items:center;height:44px;padding:0 22px;
  border:1px solid #D8D1C5;border-radius:999px;
  font-size:15px;color:#3A4744;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.cat-chips a:hover{background:#EFE9DD;color:var(--ink);}
.cat-chips a.is-current{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
  padding:40px 48px;
  background:#FBF8F1;
  border:1px solid var(--ink);border-radius:var(--r-card);
}
.cta-strip h2{
  font-family:var(--serif);font-weight:900;font-size:26px;line-height:1.4;
  color:var(--ink);margin-bottom:8px;
}
.cta-strip p{font-size:15px;color:var(--muted);}
.cta-strip .btn{flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);color:rgba(247,244,238,.78);
  padding:72px 0 0;margin-top:96px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--serif);font-weight:900;font-size:18px;color:var(--paper);
  margin-bottom:20px;
}
.footer-brand .brand-mark{background:transparent;border:1px solid rgba(247,244,238,.24);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(247,244,238,.72);max-width:34ch;}
.footer-contact{margin-top:20px;}
.footer-contact li{font-size:14px;color:rgba(247,244,238,.72);line-height:1.9;}
.footer-title{
  font-size:14px;font-weight:700;color:var(--paper);
  letter-spacing:.06em;margin-bottom:20px;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(247,244,238,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:var(--paper);transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  margin-top:56px;padding:24px 0;
  border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(247,244,238,.6);
}

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

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .page-hero{padding:64px 0 72px;}
  .page-hero h1{font-size:44px;}
  .section-head h2,.faq-aside h2{font-size:30px;}
  .feature-row{gap:40px;}
  .faq-layout{grid-template-columns:1fr;gap:40px;}
  .panel-grid{grid-template-columns:1fr;}
  .panel-item{padding:32px 28px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .metric:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:900px){
  .tool-row{display:none;}
  .nav-inner{height:68px;gap:16px;}
  .site-header.is-scrolled .nav-inner{height:60px;}
  .nav-tabs,.nav-cta{display:none;}
  .nav-toggle{display:block;margin-left:auto;}
  .nav-tabs{
    position:fixed;inset:68px 0 0 0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#FBF9F5;padding:16px 24px 120px;
    overflow-y:auto;z-index:99;
  }
  .nav-tabs.is-open{display:flex;}
  .nav-chip{
    height:52px;border:0;border-bottom:1px solid var(--line);
    border-radius:0;padding:0;font-size:16px;justify-content:flex-start;
    background:transparent;
  }
  .nav-chip.is-active{background:transparent;color:var(--coral);}
  .nav-chip:hover{background:transparent;color:var(--coral);}
  .drawer-cta{
    display:inline-flex;position:fixed;left:24px;right:24px;bottom:24px;
    width:auto;height:52px;
  }
}
@media (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .page-hero{padding:48px 0 56px;}
  .page-hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:20px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-text{width:auto;}
  .trust-row{margin-top:32px;}
  .trust-row li{margin-right:0;padding-right:0;flex:1 1 50%;}
  .hero-figure::after{display:none;}
  .section-head{margin-bottom:36px;}
  .section-head h2,.faq-aside h2{font-size:26px;}
  .feature-row{grid-template-columns:1fr;gap:28px;}
  .feature-row.is-reverse .feature-media{order:0;}
  .feature-row + .feature-row{margin-top:52px;}
  .feature-text h3{font-size:21px;}
  .step-item{grid-template-columns:1fr;gap:12px;padding:26px 0;}
  .step-num{font-size:26px;}
  .metric-grid{gap:28px 0;}
  .metric{padding:8px 20px;}
  .metric strong{font-size:34px;}
  .faq-q{font-size:16px;padding:20px 0;}
  .faq-a p{padding:0 0 22px;}
  .cta-strip{padding:28px 24px;}
  .cta-strip h2{font-size:21px;}
  .cta-strip .btn{width:100%;}
  .site-footer{padding-top:56px;margin-top:56px;}
  .footer-bottom{margin-top:36px;}
  .brand-text{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0E2E2B;
  --ink-soft:#16403C;
  --teal:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --paper-lite:#FBF9F5;
  --band:#F1EDE3;
  --card:#FFFFFF;
  --text:#1B2422;
  --muted:#5A6663;
  --faint:#7C8783;
  --line:#E2DCD1;
  --line-weak:#EDE7DB;
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --r-card:16px;
  --r-btn:6px;
  --shadow-card:0 8px 24px rgba(14,46,43,.06);
  --shadow-lift:0 12px 32px rgba(14,46,43,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .25s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--coral);outline-offset:2px;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:rgba(217,85,47,.16);color:var(--ink);}
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;}
.grid-margin-x{margin-left:-16px;margin-right:-16px;}
.grid-margin-x > .cell{padding-left:16px;padding-right:16px;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper-lite);transition:box-shadow .3s var(--ease);}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(14,46,43,.06);}
.tool-row{background:var(--ink);color:rgba(247,244,238,.72);font-size:12.5px;letter-spacing:.02em;}
.tool-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:38px;}
.tool-lang{color:rgba(247,244,238,.55);}
.nav-row{display:flex;align-items:center;height:84px;border-bottom:1px solid transparent;transition:height .3s var(--ease),border-color .3s var(--ease);}
.site-header.is-scrolled .nav-row{height:64px;border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;gap:32px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-family:var(--serif);font-weight:900;font-size:19px;color:var(--ink);letter-spacing:.01em;transition:font-size .3s var(--ease);}
.brand-mark{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:var(--ink);border-radius:9px;padding:5px;flex:0 0 auto;transition:width .3s var(--ease),height .3s var(--ease);}
.brand-mark svg{width:100%;height:100%;}
.site-header.is-scrolled .brand{font-size:17px;}
.site-header.is-scrolled .brand-mark{width:28px;height:28px;}
.nav-tabs{display:flex;align-items:center;justify-content:center;gap:8px;flex:1 1 auto;min-width:0;}
.nav-chip{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);color:#3A4744;font-size:14.5px;white-space:nowrap;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);}
.nav-chip:hover{background:#EFE9DD;color:var(--ink);}
.nav-chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.nav-cta{flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:transparent;margin-left:auto;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-cta{display:none;}

/* ---------- Buttons / chips ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 32px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--coral);color:#fff;transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:var(--paper);}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.btn-block{width:100%;}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;line-height:1;background:#F0EBDF;color:var(--ink);}
.chip-teal{background:rgba(78,140,130,.14);color:#2F6B62;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);}
.link-arrow svg{transition:transform .3s var(--ease);}
.link-arrow:hover{color:var(--coral);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:26px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);}
.crumb a{color:var(--faint);}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#C9C2B5;}
.crumb .current{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article hero ---------- */
.article-hero{padding:36px 0 0;}
.article-head{max-width:840px;}
.article-title{font-family:var(--serif);font-weight:900;font-size:40px;line-height:1.28;letter-spacing:.01em;color:var(--ink);margin:18px 0 0;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13px;color:var(--faint);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFC8BB;display:inline-block;}
.article-lead{margin-top:22px;padding-top:22px;border-top:1px solid var(--line);font-size:15px;color:var(--muted);max-width:760px;}

/* ---------- Article body ---------- */
.article-body{padding:44px 0 88px;}
.article-main{max-width:720px;}
.article-content{font-size:17px;line-height:1.9;color:var(--text);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.4em;}
.article-content h2{font-family:var(--serif);font-weight:700;font-size:28px;line-height:1.35;color:var(--ink);margin:2em 0 .8em;}
.article-content h3{font-family:var(--serif);font-weight:700;font-size:21px;line-height:1.45;color:var(--ink);margin:1.7em 0 .6em;}
.article-content h4{font-size:17px;font-weight:700;color:var(--ink);margin:1.5em 0 .5em;}
.article-content ul{margin:0 0 1.4em;padding-left:0;list-style:none;}
.article-content ul li{position:relative;padding-left:16px;margin-bottom:.6em;}
.article-content ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--teal);}
.article-content ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-content ol li{margin-bottom:.6em;}
.article-content blockquote{margin:1.8em 0;padding:24px;background:#F5F1E8;border-left:3px solid var(--coral);border-radius:0 12px 12px 0;color:var(--muted);font-size:16px;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:12px;margin:26px 0 10px;width:100%;height:auto;}
.article-content figcaption{font-size:13px;color:var(--faint);margin-bottom:1.6em;line-height:1.6;}
.article-content a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:rgba(14,46,43,.35);transition:color .25s var(--ease),text-decoration-color .25s var(--ease);}
.article-content a:hover{color:var(--coral);text-decoration-color:var(--coral);}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-content th,.article-content td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-content th{background:var(--band);font-weight:700;color:var(--ink);}
.article-content hr{border:none;border-top:1px solid var(--line);margin:2.4em 0;}
.article-empty{max-width:720px;border:1px dashed var(--line);border-radius:var(--r-card);padding:64px 32px;text-align:center;background:var(--card);}
.article-empty h2{font-family:var(--serif);font-size:24px;color:var(--ink);margin-bottom:12px;}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:26px;}

/* ---------- Aside ---------- */
.article-aside{display:block;}
.aside-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);}
.aside-title{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.03em;}
.author-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.author-avatar{width:48px;height:48px;border-radius:50%;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:20px;font-weight:700;flex:0 0 auto;}
.author-name{font-weight:700;font-size:15px;color:var(--ink);line-height:1.4;}
.author-role{font-size:12.5px;color:var(--faint);line-height:1.5;margin-top:2px;}
.author-bio{font-size:13.5px;line-height:1.8;color:var(--muted);margin-bottom:18px;}
.toc-list{list-style:none;font-size:13.5px;color:var(--muted);}
.toc-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--line-weak);line-height:1.7;}
.toc-list li:last-child{border-bottom:none;padding-bottom:0;}
.toc-list .n{font-family:var(--serif);font-weight:700;color:var(--coral);flex:0 0 auto;}

/* ---------- Footer nav / related ---------- */
.article-foot{max-width:720px;margin-top:52px;padding-top:30px;border-top:1px solid var(--line);}
.postnav{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;font-size:14px;color:var(--faint);}
.postnav a{color:var(--ink);font-weight:600;}
.postnav a:hover{color:var(--coral);}
.back-row{margin-top:22px;}

.rel{padding:0 0 80px;}
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-top:44px;border-top:1px solid var(--line);margin-bottom:32px;}
.rel-head h2{font-family:var(--serif);font-weight:700;font-size:28px;color:var(--ink);line-height:1.3;}
.rel-head p{font-size:14px;color:var(--faint);margin-top:6px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);}
.card:hover{transform:translateY(-2px);border-color:rgba(14,46,43,.4);box-shadow:var(--shadow-lift);}
.card-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-family:var(--serif);font-size:18px;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--faint);}

/* ---------- CTA band ---------- */
.cta-band{padding:0 0 96px;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background:var(--paper-lite);border:1px solid var(--ink);border-radius:var(--r-card);padding:36px 40px;}
.cta-inner h2{font-family:var(--serif);font-size:24px;line-height:1.35;color:var(--ink);margin-bottom:8px;}
.cta-inner p{font-size:14.5px;color:var(--muted);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,238,.78);padding:72px 0 0;}
.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:900;font-size:19px;color:var(--paper);margin-bottom:18px;}
.footer-brand .brand-mark{width:30px;height:30px;background:var(--paper);border-radius:8px;padding:5px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,244,238,.72);margin-bottom:18px;max-width:340px;}
.footer-contact{list-style:none;font-size:13.5px;color:rgba(247,244,238,.6);}
.footer-contact li{margin-bottom:8px;}
.footer-title{font-size:14px;font-weight:700;color:var(--paper);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{list-style:none;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(247,244,238,.72);display:inline-block;transition:color .25s var(--ease),transform .25s var(--ease);}
.footer-links a:hover{color:var(--paper);transform:translateX(2px);}
.footer-bottom{margin-top:56px;padding:22px 0;border-top:1px solid rgba(247,244,238,.14);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(247,244,238,.55);}

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

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-inner{gap:20px;}
  .nav-tabs{justify-content:flex-start;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;}
  .nav-tabs::-webkit-scrollbar{display:none;}
  .article-title{font-size:34px;}
  .article-aside,.aside-inner{display:none;}
  .article-main{max-width:100%;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  .tool-row{display:none;}
  .nav-row{height:68px;}
  .site-header.is-scrolled .nav-row{height:62px;}
}
@media (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .nav-row{height:64px;}
  .site-header.is-scrolled .nav-row{height:64px;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-tabs{
    position:fixed;top:64px;left:0;right:0;bottom:0;z-index:70;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:8px 24px 130px;background:var(--paper-lite);
    overflow-y:auto;transform:translateX(100%);
    transition:transform .35s var(--ease);box-shadow:0 12px 32px rgba(14,46,43,.10);
  }
  .nav-tabs.is-open{transform:translateX(0);}
  .nav-chip{width:100%;height:52px;border-radius:0;border:none;border-bottom:1px solid var(--line);padding:0 4px;font-size:16px;justify-content:flex-start;}
  .nav-chip:hover{background:transparent;}
  .nav-chip.is-active{background:transparent;color:var(--ink);font-weight:700;border-bottom-color:var(--ink);}
  .drawer-cta{display:flex;position:absolute;left:24px;right:24px;bottom:28px;height:52px;}
  .article-title{font-size:26px;line-height:1.35;}
  .article-content{font-size:16px;}
  .article-content h2{font-size:23px;}
  .article-content h3{font-size:19px;}
  .article-content blockquote{padding:18px;font-size:15px;}
  .article-hero{padding-top:24px;}
  .article-body{padding:32px 0 64px;}
  .card-grid{grid-template-columns:1fr;}
  .rel-head h2{font-size:22px;}
  .cta-inner{padding:26px 22px;}
  .cta-inner h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{margin-top:36px;flex-direction:column;}
  .site-footer{padding-top:52px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0E2E2B;
  --ink-70:rgba(14,46,43,.7);
  --teal:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --paper-2:#F1EDE3;
  --paper-3:#FBF9F5;
  --white:#FFFFFF;
  --text:#1B2422;
  --muted:#5A6663;
  --faint:#7C8783;
  --line:#E2DCD1;
  --line-soft:#EDE7DB;
  --line-dark:rgba(247,244,238,.14);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --r-card:16px;
  --r-img:20px;
  --r-btn:6px;
  --sh-card:0 8px 24px rgba(14,46,43,.06);
  --sh-lift:0 12px 32px rgba(14,46,43,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--coral)}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:900;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
@media screen and (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px}
}
/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 32px;border-radius:var(--r-btn);
  font-family:var(--sans);font-size:15px;font-weight:500;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-primary:hover,.btn-primary:focus{background:var(--coral);border-color:var(--coral);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-card)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);color:var(--paper)}
.btn-sm{height:44px;padding:0 22px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:44px;
  font-size:15px;font-weight:500;color:var(--ink);border:0;background:none;padding:0;
}
.btn-text .arrow{transition:transform .28s var(--ease)}
.btn-text:hover{color:var(--coral)}
.btn-text:hover .arrow{transform:translateX(4px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.06em;color:var(--ink);
  background:var(--paper-2);border:1px solid var(--line);
  padding:5px 12px;border-radius:999px;margin-bottom:24px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral)}
.chip{
  display:inline-flex;align-items:center;
  font-size:12px;padding:4px 10px;border-radius:999px;
  background:var(--paper-2);color:var(--ink);border:1px solid transparent;
}
.chip-teal{background:rgba(78,140,130,.12);color:var(--teal)}
.chip-coral{background:rgba(217,85,47,.10);color:var(--coral)}
.band{padding:96px 0}
.band-tight{padding:72px 0}
.band-head{max-width:720px;margin-bottom:48px}
.band-head h2{font-size:36px;line-height:1.25;margin-bottom:16px}
.band-head p{color:var(--muted);font-size:16px;line-height:1.85}
.section-line{height:1px;background:var(--line);border:0;margin:0}
/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper-3);transition:box-shadow .3s var(--ease),background .3s var(--ease)}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(14,46,43,.06);border-bottom:1px solid var(--line)}
.tool-row{background:var(--ink);color:rgba(247,244,238,.72);font-size:13px;line-height:1.6}
.tool-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:38px}
.tool-inner span{white-space:nowrap}
.tool-lang{color:rgba(247,244,238,.9)}
.nav-row{background:var(--paper-3)}
.nav-inner{display:flex;align-items:center;gap:32px;min-height:84px;transition:min-height .3s var(--ease)}
.site-header.is-scrolled .nav-inner{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);font-family:var(--serif);font-weight:900;font-size:19px;letter-spacing:.01em}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .3s var(--ease),width .3s var(--ease),height .3s var(--ease);
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand:hover .brand-mark{transform:rotate(-6deg)}
.site-header.is-scrolled .brand-mark{width:30px;height:30px}
.site-header.is-scrolled .brand-mark svg{width:19px;height:19px}
.brand-text{white-space:nowrap}
.nav-tabs{display:flex;align-items:center;gap:8px;flex:1;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-chip{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:999px;border:1px solid #D8D1C5;color:#3A4744;
  font-size:15px;white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.nav-chip:hover{background:#EFE9DD;color:#3A4744}
.nav-chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.nav-chip.is-active:hover{background:var(--ink);color:var(--paper)}
.nav-cta{flex-shrink:0}
.drawer-cta{display:none}
.nav-toggle{
  display:none;position:relative;z-index:90;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--paper);cursor:pointer;padding:0;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ---------- Hero ---------- */
.cat-hero{padding:56px 0 72px;position:relative;overflow:hidden;background:var(--paper)}
.cat-hero .h1-rule{width:48px;height:3px;background:var(--coral);border-radius:2px;margin:0 0 24px}
.cat-hero h1{font-size:56px;line-height:1.12;letter-spacing:-.015em;margin-bottom:24px}
.cat-hero .lead{font-size:20px;line-height:1.7;color:var(--ink-70);font-weight:400;margin-bottom:20px;max-width:34em}
.cat-hero .hero-desc{font-size:16px;line-height:1.85;color:var(--muted);max-width:36em;margin-bottom:0}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:32px}
.trust-row{display:flex;gap:32px;flex-wrap:wrap;margin-top:48px}
.trust-row li{font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line);min-width:130px;line-height:1.6}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-card)}
.hero-media::after{
  content:"";position:absolute;inset:0;border:1px solid var(--ink);
  border-radius:var(--r-img);transform:translate(20px,-20px);z-index:-1;pointer-events:none;
}
/* ---------- 图文交错 ---------- */
.zig-row{margin-bottom:96px}
.zig-row:last-child{margin-bottom:0}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-card)}
.zig-text .index-mark{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:14px;color:var(--coral);font-weight:700;margin-bottom:16px;
}
.zig-text .index-mark::after{content:"";width:40px;height:1px;background:var(--line)}
.zig-text h3{font-size:26px;line-height:1.4;margin-bottom:16px}
.zig-text p{font-size:16px;line-height:1.9;color:var(--muted);margin-bottom:24px}
.point-list{display:grid;gap:14px}
.point-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.75;color:var(--text)}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  background:var(--teal);border-radius:2px;
}
@media screen and (min-width:1025px){
  .zig-row.reverse .zig-media{order:2}
  .zig-row.reverse .zig-text{order:1}
}
/* ---------- 深色 HUD ---------- */
.hud-band{background:var(--ink);color:rgba(247,244,238,.78);padding:96px 0}
.hud-band h2{color:var(--paper);font-size:36px;line-height:1.25;margin-bottom:16px}
.hud-band .hud-intro{font-size:15px;line-height:1.85;color:rgba(247,244,238,.72);max-width:26em}
.hud-item{
  display:grid;grid-template-columns:56px 1fr auto;gap:24px;align-items:center;
  padding:28px 0;border-top:1px solid var(--line-dark);
}
.hud-band .hud-list .hud-item:last-child{border-bottom:1px solid var(--line-dark)}
.hud-num{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--coral);letter-spacing:.04em}
.hud-title{color:var(--paper);font-size:18px;font-weight:500;margin-bottom:6px}
.hud-desc{font-size:14px;line-height:1.7;color:rgba(247,244,238,.66);margin:0}
.hud-metric{text-align:right;white-space:nowrap}
.hud-metric strong{display:block;font-family:var(--serif);font-size:44px;line-height:1;color:var(--paper);font-weight:900}
.hud-metric span{font-size:14px;color:var(--coral);letter-spacing:.04em}
/* ---------- FAQ ---------- */
.faq-wrap{padding:96px 0}
.faq-side h2{font-size:36px;line-height:1.25;margin-bottom:16px}
.faq-side p{font-size:15px;line-height:1.85;color:var(--muted);max-width:20em}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  width:100%;background:none;border:0;padding:24px 0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:700;line-height:1.5;color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--teal)}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-icon{flex-shrink:0;position:relative;width:20px;height:20px;margin-top:3px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{width:14px;height:1.5px}
.faq-icon::after{width:1.5px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{font-size:15px;line-height:1.9;color:var(--muted);padding:0 48px 24px 0;margin:0}
/* ---------- 相关分类 + CTA 条 ---------- */
.related-band{padding:0 0 96px}
.related-title{font-size:14px;letter-spacing:.08em;color:var(--faint);margin-bottom:20px;font-family:var(--sans);font-weight:500}
.rel-chips{display:flex;flex-wrap:wrap;gap:12px}
.rel-chip{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:999px;border:1px solid #D8D1C5;background:var(--white);
  font-size:15px;color:#3A4744;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.rel-chip .arrow{transition:transform .25s var(--ease);font-family:var(--serif)}
.rel-chip:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-1px)}
.rel-chip:hover .arrow{transform:translateX(3px)}
.cta-bar{
  margin-top:48px;border:1px solid var(--ink);border-radius:var(--r-card);
  background:var(--white);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-card);
}
.cta-bar h3{font-size:24px;line-height:1.45;margin-bottom:8px}
.cta-bar p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,238,.72);padding:72px 0 0;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--paper);font-family:var(--serif);font-weight:900;font-size:19px;margin-bottom:20px}
.site-footer .brand-mark{background:var(--paper)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(247,244,238,.66);max-width:30em;margin-bottom:24px}
.footer-contact li{font-size:14px;line-height:2;color:rgba(247,244,238,.7)}
.footer-title{font-family:var(--sans);font-size:14px;font-weight:700;color:var(--paper);margin-bottom:18px;letter-spacing:.02em}
.footer-links li{margin-bottom:12px}
.footer-links a{
  font-size:14px;color:rgba(247,244,238,.72);display:inline-block;
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-links a:hover{color:var(--paper);transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,238,.56);
}
/* ---------- 入场动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  .fade-up{animation:fadeUp .42s var(--ease) both}
  .fade-up.d1{animation-delay:.08s}
  .fade-up.d2{animation-delay:.16s}
  .fade-up.d3{animation-delay:.24s}
  @keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .band,.hud-band,.faq-wrap{padding:72px 0}
  .related-band{padding-bottom:72px}
  .cat-hero{padding:48px 0 56px}
  .cat-hero h1{font-size:42px}
  .cat-hero .lead{font-size:18px}
  .zig-row{margin-bottom:72px}
  .hero-media{margin-top:40px}
  .hero-media::after{display:none}
  .footer-bottom{margin-top:40px}
}
@media screen and (max-width:900px){
  .tool-row{display:none}
  .nav-inner{gap:16px;min-height:68px;justify-content:space-between}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-tabs{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:70;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);padding:88px 24px 32px;
    transform:translateX(100%);visibility:hidden;overflow-y:auto;
    transition:transform .35s var(--ease),visibility .35s var(--ease);
    box-shadow:none;
  }
  .nav-tabs.is-open{transform:none;visibility:visible}
  .nav-chip{
    height:52px;border:0;border-bottom:1px solid var(--line);border-radius:0;
    padding:0;font-size:17px;justify-content:flex-start;
  }
  .nav-chip:hover{background:transparent}
  .nav-chip.is-active{background:transparent;color:var(--ink);border-bottom-color:var(--ink);font-weight:700}
  .drawer-cta{display:flex;width:100%;height:52px;margin-top:28px}
  body.nav-open{overflow:hidden}
  .hud-item{grid-template-columns:40px 1fr;gap:16px}
  .hud-metric{grid-column:2;text-align:left;margin-top:8px}
  .hud-metric strong{font-size:34px}
}
@media screen and (max-width:640px){
  .band,.hud-band,.faq-wrap{padding:56px 0}
  .related-band{padding-bottom:56px}
  .cat-hero{padding:40px 0 48px}
  .cat-hero h1{font-size:32px;line-height:1.24;margin-bottom:20px}
  .cat-hero .lead{font-size:17px}
  .band-head h2,.hud-band h2,.faq-side h2{font-size:26px}
  .cat-hero .h1-rule{margin-bottom:20px}
  .hero-actions .btn{flex:1 1 auto}
  .trust-row{gap:20px;margin-top:36px}
  .trust-row li{flex:1 1 46%;min-width:0}
  .zig-text h3{font-size:21px}
  .zig-row{margin-bottom:56px}
  .faq-q{font-size:16px;padding:20px 0}
  .faq-a p{padding-right:24px}
  .cta-bar{padding:28px;flex-direction:column;align-items:flex-start}
  .cta-bar h3{font-size:20px}
  .cta-bar .btn{width:100%}
  .site-footer{padding-top:56px}
  .footer-brand{margin-bottom:16px}
  .footer-title{margin-top:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --ink:#0E2E2B;
  --aqua:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --paper-soft:#FBF9F5;
  --band:#F1EDE3;
  --card:#FFFFFF;
  --text:#1B2422;
  --muted:#5A6663;
  --faint:#7C8783;
  --line:#E2DCD1;
  --line-soft:#EDE7DB;
  --line-dark:rgba(247,244,238,.14);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,sans-serif;
  --r-card:16px;
  --r-large:20px;
  --r-btn:6px;
  --shadow-card:0 8px 24px rgba(14,46,43,.06);
  --shadow-lift:0 12px 32px rgba(14,46,43,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{font-family:var(--serif);font-weight:900;color:var(--ink);line-height:1.25}
p{color:var(--muted)}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:4px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--band);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head h2{font-size:36px;margin-top:16px}
.sec-head p{font-size:16px;margin-top:14px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper-soft);border-bottom:1px solid transparent;transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 12px rgba(14,46,43,.06)}
.tool-row{display:block;border-bottom:1px solid var(--line-soft);transition:opacity .2s var(--ease)}
.tool-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:38px;font-size:12.5px;color:var(--faint);letter-spacing:.02em}
.tool-lang{color:var(--aqua);font-weight:500}
.site-header.is-scrolled .tool-row{opacity:0;height:0;overflow:hidden;border-bottom-color:transparent}
.nav-row{padding:16px 0;transition:padding .25s var(--ease)}
.site-header.is-scrolled .nav-row{padding:8px 0}
.nav-inner{display:flex;align-items:center;gap:32px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--ink);flex:0 0 auto;transition:width .25s var(--ease),height .25s var(--ease)}
.brand-mark svg{width:24px;height:24px}
.site-header.is-scrolled .brand-mark{width:32px;height:32px;border-radius:10px}
.brand-text{font-family:var(--serif);font-weight:900;font-size:19px;color:var(--ink);letter-spacing:.01em;white-space:nowrap;transition:font-size .25s var(--ease)}
.site-header.is-scrolled .brand-text{font-size:17px}
.nav-tabs{display:flex;align-items:center;gap:10px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-chip{display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;border:1px solid #D8D1C5;color:#3A4744;font-size:15px;white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.nav-chip:hover{background:#EFE9DD}
.nav-chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.nav-cta{flex:0 0 auto;margin-left:32px}
.drawer-cta{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 10px;background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 32px;border:1px solid transparent;border-radius:var(--r-btn);font-size:16px;font-weight:700;cursor:pointer;transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--coral);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 24px;font-size:15px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink)}
.text-link .arrow{transition:transform .22s var(--ease);color:var(--coral)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- page hero ---------- */
.page-hero{padding:72px 0 0;position:relative;overflow:hidden}
.page-hero .grid-x{position:relative;z-index:2}
.hero-chip{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px;font-weight:700;color:var(--ink)}
.hero-chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--aqua)}
.page-hero h1{font-size:52px;line-height:1.14;margin-top:24px;max-width:16em}
.page-hero h1 .mark{display:inline-block;position:relative}
.page-hero h1 .mark::after{content:"";position:absolute;left:0;bottom:4px;width:48px;height:3px;background:var(--coral);border-radius:2px}
.hero-lead{margin-top:26px;font-size:17px;line-height:1.9;color:var(--muted);max-width:44em}
.hero-lead + .hero-lead{margin-top:14px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:36px}
.hero-aside{border-left:1px solid var(--line);padding-left:32px;margin-top:16px}
.hero-aside p{font-size:14px;line-height:1.9;color:var(--muted)}
.hero-aside p + p{margin-top:12px}
.hero-aside strong{color:var(--ink);font-weight:700}

.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px;border-top:1px solid var(--line);padding-top:32px}
.stat-item{padding:0 24px;border-left:1px solid var(--line)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--serif);font-weight:900;font-size:44px;line-height:1.1;color:var(--ink)}
.stat-num em{font-style:normal;font-size:15px;color:var(--coral);margin-left:4px;font-family:var(--sans);font-weight:700}
.stat-label{font-size:14px;color:var(--faint);margin-top:8px}

/* ---------- mixed grid ---------- */
.mixed-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.m-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease)}
.m-card:hover{transform:translateY(-3px);border-color:rgba(14,46,43,.4);box-shadow:var(--shadow-lift)}
.m-card-media{aspect-ratio:16/9;overflow:hidden;background:var(--band)}
.m-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.m-card:hover .m-card-media img{transform:scale(1.04)}
.m-card-body{padding:24px;display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:1}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--band);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.02em}
.tag-aqua{background:rgba(78,140,130,.14);color:#2F625B}
.tag-coral{background:rgba(217,85,47,.12);color:#A93E1F}
.m-card-title{font-size:20px;line-height:1.45}
.m-card-text{font-size:14.5px;line-height:1.9;color:var(--muted)}
.m-card-body .text-link{margin-top:auto}
.card-wide{grid-column:1/-1;flex-direction:row}
.card-wide .m-card-media{flex:0 0 42%;width:42%;aspect-ratio:auto;min-height:280px}
.card-wide .m-card-body{padding:40px;gap:16px;justify-content:center}
.card-wide .m-card-title{font-size:26px}
.card-wide .m-card-text{font-size:15px}

/* ---------- dark process ---------- */
.process-band{background:var(--band);padding:96px 0}
.process-panel{background:var(--ink);border-radius:var(--r-large);padding:56px;color:var(--paper)}
.process-panel h2{color:var(--paper);font-size:36px;margin-top:16px}
.process-panel .eyebrow{background:rgba(247,244,238,.12);color:var(--paper)}
.process-panel .lead{color:rgba(247,244,238,.78);font-size:15.5px;line-height:1.9;margin-top:16px;max-width:42em}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:48px}
.step{padding:0 32px;border-left:1px solid var(--line-dark)}
.step:first-child{border-left:0;padding-left:0}
.step-num{font-family:var(--serif);font-weight:900;font-size:32px;color:var(--coral);line-height:1}
.step h3{color:var(--paper);font-size:19px;margin-top:16px}
.step p{color:rgba(247,244,238,.72);font-size:14.5px;line-height:1.9;margin-top:10px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;padding:24px 0;background:none;border:0;text-align:left;font-size:18px;font-weight:700;line-height:1.5;color:var(--text);cursor:pointer;transition:color .2s var(--ease)}
.faq-q:hover{color:var(--aqua)}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-ico{flex:0 0 auto;width:26px;height:26px;position:relative;transition:transform .22s var(--ease)}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%)}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-ico{transform:rotate(180deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 56px 26px 0;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- related + cta ---------- */
.related-group{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:40px}
.related-group .label{font-size:13px;color:var(--faint);font-weight:700}
.rel-chip{display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--ink);transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.rel-chip:hover{background:var(--band);border-color:var(--aqua);transform:translateY(-1px)}
.rel-chip.is-current{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.cta-bar{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:40px 48px;border:1px solid var(--ink);border-radius:var(--r-large);background:#fff}
.cta-bar h2{font-size:26px;line-height:1.4}
.cta-bar p{font-size:14.5px;margin-top:10px;color:var(--muted);max-width:36em}
.cta-bar .btn{flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,238,.72);padding:72px 0 0;margin-top:96px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--paper);font-family:var(--serif);font-weight:900;font-size:20px}
.footer-brand .brand-mark{background:rgba(247,244,238,.1)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(247,244,238,.66);margin:18px 0 20px;max-width:26em}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(247,244,238,.72)}
.footer-title{color:var(--paper);font-size:14px;font-weight:700;margin:0 0 16px;letter-spacing:.04em}
.footer-links li{margin-bottom:12px}
.footer-links a{display:inline-block;font-size:14px;color:rgba(247,244,238,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--paper);transform:translateX(2px)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:56px;padding:24px 0;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(247,244,238,.6)}
.footer-bottom span{line-height:1.8}

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

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section,.process-band{padding:72px 0}
  .page-hero{padding-top:56px}
  .page-hero h1{font-size:40px}
  .hero-aside{border-left:0;padding-left:0;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
  .stat-strip{grid-template-columns:repeat(2,1fr);row-gap:32px;margin-top:40px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .steps{grid-template-columns:1fr;gap:32px}
  .step{border-left:0;padding-left:0;padding-bottom:32px;border-bottom:1px solid var(--line-dark)}
  .step:last-child{border-bottom:0;padding-bottom:0}
  .process-panel{padding:40px}
  .process-panel h2{font-size:28px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px;gap:24px}
  .card-wide{flex-direction:column}
  .card-wide .m-card-media{flex:none;width:100%;aspect-ratio:16/9;min-height:0}
  .card-wide .m-card-body{padding:28px}
}
@media (max-width:900px){
  .mixed-grid{grid-template-columns:1fr}
  .nav-tabs{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-tabs.is-open{display:flex;position:fixed;left:0;right:0;top:0;bottom:0;z-index:90;flex-direction:column;align-items:stretch;gap:0;background:var(--paper-soft);padding:88px 24px 32px;overflow-y:auto}
  .nav-tabs.is-open .nav-chip{display:flex;height:52px;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:0 4px;font-size:16px;justify-content:flex-start}
  .nav-tabs.is-open .nav-chip.is-active{background:transparent;color:var(--ink);border-bottom-color:var(--ink);font-weight:700}
  .nav-tabs.is-open .drawer-cta{display:inline-flex;margin-top:auto;width:100%}
  .tool-row{display:none}
}
@media (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section,.process-band{padding:56px 0}
  .page-hero{padding-top:40px}
  .page-hero h1{font-size:32px;line-height:1.2}
  .hero-lead{font-size:15.5px}
  .sec-head h2,.process-panel h2{font-size:26px}
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px;border-radius:10px}
  .stat-strip{grid-template-columns:1fr;row-gap:24px}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line-soft);padding-top:16px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .stat-num{font-size:36px}
  .process-panel{padding:28px}
  .m-card-title{font-size:18px}
  .card-wide .m-card-title{font-size:21px}
  .faq-q{font-size:16px;gap:16px}
  .faq-a p{padding-right:0}
  .hero-actions{gap:16px}
  .btn{width:100%}
  .hero-actions .btn-ghost{width:auto}
  .cta-bar .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:56px;padding-top:56px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --ink:#0E2E2B;
  --ink-70:rgba(14,46,43,.7);
  --teal:#4E8C82;
  --coral:#D9552F;
  --paper:#F7F4EE;
  --paper-2:#FBF9F5;
  --band:#F1EDE3;
  --card:#FFFFFF;
  --text:#1B2422;
  --muted:#5A6663;
  --faint:#7C8783;
  --line:#E2DCD1;
  --line-soft:#EDE7DB;
  --line-dark:rgba(247,244,238,.14);
  --on-dark:rgba(247,244,238,.78);
  --r-card:16px;
  --r-img:20px;
  --r-btn:6px;
  --sh-card:0 8px 24px rgba(14,46,43,.06);
  --sh-lift:0 12px 32px rgba(14,46,43,.10);
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --serif:"Noto Serif SC",Georgia,"Songti SC","SimSun",serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
svg{display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--coral)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:900;color:var(--ink);line-height:1.25}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:4px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.grid-padding-x{margin-left:-16px;margin-right:-16px}
.grid-padding-x>.cell{padding-left:16px;padding-right:16px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-margin-x>.cell{margin-left:10px;margin-right:10px}

/* ---------- 通用组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--teal);text-transform:none;
  padding:5px 12px;border-radius:999px;
  background:rgba(78,140,130,.10);
  border:1px solid rgba(78,140,130,.24);
  margin-bottom:20px;
}
.eyebrow-light{color:#CFE3DE;background:rgba(247,244,238,.08);border-color:rgba(247,244,238,.22)}
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-band{background:var(--band)}
.sec-dark{background:var(--ink);color:var(--on-dark)}
.sec-dark h2,.sec-dark h3{color:var(--paper)}
.sec-dark p{color:var(--on-dark)}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head h2{font-size:36px;line-height:1.25}
.sec-head .sec-sub{margin-top:14px;font-size:16px;color:var(--muted)}
.sec-dark .sec-head .sec-sub{color:var(--on-dark)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 32px;border-radius:var(--r-btn);
  font-family:var(--sans);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--coral);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-card)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-block{width:100%}
.btn-sm{height:44px;padding:0 24px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--ink)}
.link-arrow span{transition:transform .22s var(--ease)}
.link-arrow:hover{color:var(--coral)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--paper-2);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 12px rgba(14,46,43,.06)}
.tool-row{display:block;border-bottom:1px solid var(--line-soft)}
.tool-inner{display:flex;align-items:center;gap:28px;height:36px;font-size:12.5px;color:var(--faint);letter-spacing:.01em}
.tool-lang{margin-left:auto;color:var(--muted)}
.nav-inner{display:flex;align-items:center;gap:32px;height:84px;transition:height .25s var(--ease)}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--ink);
  display:flex;align-items:center;justify-content:center;flex:none;
  transition:width .25s var(--ease),height .25s var(--ease),background .22s var(--ease);
}
.brand-mark svg{width:22px;height:22px}
.site-header.is-scrolled .brand-mark{width:32px;height:32px}
.brand-text{font-family:var(--serif);font-weight:700;font-size:17px;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.brand:hover .brand-mark{background:var(--coral)}
.nav-tabs{display:flex;align-items:center;gap:8px;flex:1;justify-content:center;min-width:0}
.nav-chip{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:999px;border:1px solid #D8D1C5;
  color:#3A4744;font-size:15px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-chip:hover{background:#EFE9DD;color:#3A4744}
.nav-chip.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:500}
.nav-chip.is-active:hover{background:var(--ink);color:var(--paper)}
.nav-cta{flex:none}
.drawer-cta{display:none}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;background:transparent;
  border:1px solid var(--line);border-radius:8px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.page-hero{padding:72px 0 80px;background:var(--paper);position:relative;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(78,140,130,.16);pointer-events:none;
}
.page-title{font-size:44px;line-height:1.2;letter-spacing:-.01em}
.page-title-brand{
  display:block;font-family:var(--sans);font-size:14px;font-weight:700;
  letter-spacing:.2em;color:var(--teal);margin-bottom:18px;
}
.title-rule{width:48px;height:3px;background:var(--coral);border-radius:2px;margin:24px 0 22px}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:420px}
.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:32px}
.hero-facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.hero-facts li{font-size:13px;color:var(--faint);line-height:1.7}
.hero-facts strong{display:block;font-family:var(--serif);font-size:19px;color:var(--ink);font-weight:900}
.hero-side{position:sticky;top:112px}

/* ---------- 时间轴 ---------- */
.timeline-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 40px 20px;box-shadow:var(--sh-card);
}
.timeline-title{font-size:20px;margin-bottom:8px}
.timeline-note{font-size:14px;color:var(--faint);margin-bottom:32px}
.timeline{position:relative;padding-left:56px}
.timeline::before{content:"";position:absolute;left:15px;top:10px;bottom:24px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:32px}
.tl-item::before{
  content:"";position:absolute;left:-46px;top:8px;width:11px;height:11px;
  border-radius:50%;background:var(--ink);box-shadow:0 0 0 4px var(--card);
}
.tl-item:last-child{padding-bottom:8px}
.tl-num{display:block;font-family:var(--serif);font-weight:700;font-size:13px;letter-spacing:.12em;color:var(--coral);margin-bottom:4px}
.tl-item h3{font-size:18px;line-height:1.45;margin-bottom:8px}
.tl-item p{font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- 深色要点区 ---------- */
.risk-list{border-top:1px solid var(--line-dark)}
.risk-item{display:flex;gap:24px;padding:26px 0;border-bottom:1px solid var(--line-dark)}
.risk-num{font-family:var(--serif);font-size:20px;font-weight:900;color:var(--coral);line-height:1.3;flex:none;width:44px}
.risk-body h3{font-size:19px;line-height:1.45;margin-bottom:6px;font-family:var(--sans);font-weight:700;color:var(--paper)}
.risk-body p{font-size:15px;line-height:1.85;color:var(--on-dark)}

/* ---------- 数据带 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding-left:28px;border-left:1px solid rgba(14,46,43,.16)}
.metric:first-child{padding-left:0;border-left:0}
.metric-num{font-family:var(--serif);font-size:44px;font-weight:900;color:var(--ink);line-height:1.05;letter-spacing:-.01em}
.metric-num em{font-style:normal;font-family:var(--sans);font-size:14px;font-weight:700;color:var(--coral);margin-left:6px}
.metric-label{font-size:14px;color:var(--muted);margin-top:12px;line-height:1.7}
.metric-foot{margin-top:40px;padding-top:24px;border-top:1px solid rgba(14,46,43,.12);font-size:14px;color:var(--faint)}

/* ---------- 对比面板 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-card);transition:border-color .22s var(--ease),transform .22s var(--ease)}
.compare-col:hover{transform:translateY(-2px);border-color:rgba(14,46,43,.4)}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:24px}
.compare-head h3{font-size:20px}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(78,140,130,.12);color:#2F6A60}
.tag-risk{background:rgba(217,85,47,.12);color:#B44526}
.compare-list li{position:relative;padding:14px 0 14px 26px;font-size:15px;line-height:1.8;color:var(--muted);border-bottom:1px solid var(--line-soft)}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list li::before{content:"";position:absolute;left:2px;top:23px;width:7px;height:7px;border-radius:1px;background:var(--line)}
.compare-col.is-safe .compare-list li::before{background:var(--teal)}
.compare-col.is-risk .compare-list li::before{background:var(--coral)}

/* ---------- 客服通道 + 表单 ---------- */
.support-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.support-media{border-radius:var(--r-img);overflow:hidden;margin-bottom:32px;background:var(--band)}
.support-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.support-media:hover img{transform:scale(1.04)}
.channel{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-soft)}
.channel:first-of-type{border-top:1px solid var(--line-soft)}
.channel-ico{
  flex:none;width:44px;height:44px;border-radius:12px;background:rgba(78,140,130,.12);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:900;font-size:16px;color:#2F6A60;
}
.channel h3{font-family:var(--sans);font-size:17px;font-weight:700;margin-bottom:6px}
.channel p{font-size:14.5px;color:var(--muted);line-height:1.8}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-img);padding:40px;box-shadow:var(--sh-card)}
.form-card h3{font-size:22px;margin-bottom:8px}
.form-hint{font-size:13.5px;color:var(--faint);margin-bottom:28px}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--faint);margin-bottom:8px;font-weight:500}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  display:block;width:100%;height:48px;padding:0 14px;
  font-family:var(--sans);font-size:15px;color:var(--text);
  background:#fff;border:1px solid #D8D1C5;border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  box-shadow:none;margin:0;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink);background:var(--paper-2);outline:none}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip-option{position:relative;display:inline-flex;cursor:pointer}
.chip-option input{position:absolute;opacity:0;width:0;height:0}
.chip-option span{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid #D8D1C5;font-size:14px;color:#3A4744;background:#fff;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip-option:hover span{background:#EFE9DD}
.chip-option input:checked+span{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip-option input:focus-visible+span{outline:2px solid var(--coral);outline-offset:2px}
.form-note{display:none;margin-top:16px;padding:14px 16px;border-radius:8px;background:var(--band);border:1px solid var(--line);font-size:14px;color:var(--muted)}
.form-note.is-on{display:block}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 0;cursor:pointer;list-style:none;
  font-family:var(--sans);font-size:18px;font-weight:700;color:var(--ink);
  line-height:1.5;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;font-family:var(--sans);font-size:26px;font-weight:400;
  line-height:1;color:var(--ink);transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] summary{color:var(--ink)}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--coral)}
.faq-answer{padding:0 0 26px;font-size:15px;line-height:1.9;color:var(--muted);max-width:780px}
.faq-aside h2{font-size:36px;line-height:1.25;margin-bottom:16px}
.faq-aside p{font-size:15px;color:var(--muted);max-width:300px}
.faq-aside .link-arrow{margin-top:20px}

/* ---------- 相关分类 ---------- */
.related-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.related-chip{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:999px;border:1px solid var(--line);background:var(--card);
  font-size:14.5px;color:#3A4744;transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.related-chip:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px)}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--paper-2);border:1px solid var(--ink);border-radius:var(--r-card);
  padding:40px 44px;
}
.cta-band h2{font-size:26px;line-height:1.35;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--muted)}
.cta-band .btn{flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,238,.72);padding:72px 0 0;margin-top:0}
.site-footer .cell{margin-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.site-footer .brand-mark{background:var(--paper)}
.footer-brand span:last-child{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--paper)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,244,238,.72);max-width:330px;margin-bottom:20px}
.footer-contact li{font-size:13.5px;color:rgba(247,244,238,.6);line-height:2}
.footer-title{font-family:var(--sans);font-size:14px;font-weight:700;color:var(--paper);margin-bottom:16px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-block;font-size:14px;color:rgba(247,244,238,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:#F7F4EE;transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding:22px 0 26px;
  font-size:13px;color:rgba(247,244,238,.55);
}

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

/* ---------- 断点 ---------- */
@media (max-width:1024px){
  .sec{padding:72px 0}
  .page-hero{padding:56px 0 64px}
  .page-title{font-size:38px}
  .hero-side{position:static;margin-top:40px}
  .sec-head h2,.faq-aside h2{font-size:30px}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .metric:nth-child(3){padding-left:0;border-left:0}
  .support-wrap{grid-template-columns:1fr;gap:40px}
  .timeline-panel{padding:32px 28px 16px}
  .nav-inner{gap:20px;height:72px}
  .site-header.is-scrolled .nav-inner{height:60px}
  .nav-chip{padding:0 16px;font-size:14px}
  .brand-text{font-size:16px}
}
@media (max-width:860px){
  .nav-cta{display:none}
  .nav-tabs{justify-content:flex-end;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
  .nav-tabs::-webkit-scrollbar{display:none}
}
@media (max-width:640px){
  .tool-row{display:none}
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-inner{height:64px;gap:12px}
  .site-header.is-scrolled .nav-inner{height:64px}
  .brand-text{font-size:15px;max-width:190px;overflow:hidden;text-overflow:ellipsis}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-tabs{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    display:none;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;background:var(--paper);padding:8px 20px 120px;overflow-y:auto;
    border-top:1px solid var(--line);z-index:110;
  }
  .nav-tabs.is-open{display:flex}
  .nav-chip{height:52px;border:0;border-bottom:1px solid var(--line-soft);border-radius:0;padding:0 4px;font-size:16px;justify-content:flex-start;width:100%}
  .nav-chip.is-active{background:transparent;color:var(--ink);font-weight:700;border-bottom-color:var(--line-soft)}
  .drawer-cta{display:flex;position:fixed;left:20px;right:20px;bottom:24px;height:52px;margin:0;z-index:111}
  .page-hero{padding:40px 0 48px}
  .page-title{font-size:30px}
  .page-title-brand{font-size:12.5px;letter-spacing:.18em;margin-bottom:12px}
  .title-rule{margin:18px 0 16px}
  .hero-lead{font-size:15.5px}
  .hero-actions{gap:16px;margin-top:26px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:20px;margin-top:28px}
  .sec{padding:56px 0}
  .sec-tight{padding:48px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2,.faq-aside h2{font-size:26px}
  .timeline-panel{padding:26px 20px 10px}
  .timeline{padding-left:44px}
  .timeline::before{left:11px}
  .tl-item::before{left:-38px}
  .tl-item h3{font-size:16.5px}
  .risk-item{gap:16px;padding:22px 0}
  .risk-num{width:32px;font-size:17px}
  .risk-body h3{font-size:17px}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric{padding-left:20px}
  .metric-num{font-size:34px}
  .metric-label{font-size:13px;margin-top:8px}
  .compare-grid{grid-template-columns:1fr}
  .compare-col{padding:24px}
  .form-card{padding:26px 22px}
  .field-row{grid-template-columns:1fr}
  .faq-item summary{font-size:16.5px;padding:20px 0;gap:16px}
  .faq-item summary::after{font-size:22px}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .faq-aside{margin-bottom:32px}
  .site-footer{padding:56px 0 0}
  .footer-bottom{font-size:12px;flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:420px){
  .metric-grid{grid-template-columns:1fr}
  .metric{border-left:0;padding-left:0;padding-bottom:20px;border-bottom:1px solid rgba(14,46,43,.12)}
  .metric:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .js .reveal{opacity:1;transform:none}
}