/* roulang page: index */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-amber:#D98C2B;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --c-alt:#F1EDE6;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(18,58,50,.06);
  --sh-2:0 10px 28px rgba(18,58,50,.12);
  --sh-3:0 18px 44px rgba(18,58,50,.16);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:46px;line-height:1.25;font-weight:700}
h2{font-size:30px;line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
::selection{background:var(--c-amber-soft);color:var(--c-ink)}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--c-alt)}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(18,58,50,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--c-ink);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;color:var(--c-ink);white-space:nowrap;letter-spacing:.2px}
.main-nav{flex:1 1 auto;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{
  position:relative;display:block;padding:9px 12px;font-size:15px;
  color:var(--c-text-2);border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.main-nav a:hover{color:var(--c-ink);background:#F1EFEA}
.main-nav .is-active a{color:var(--c-ink);font-weight:700}
.main-nav .is-active a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-amber);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:212px;height:40px;
  padding:0 14px;border:1px solid var(--c-line);border-radius:999px;
  background:#FBFAF7;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--c-ink);box-shadow:0 0 0 3px rgba(18,58,50,.10)}
.search-box svg{width:16px;height:16px;flex:0 0 auto;color:var(--c-mist)}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--c-mist)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;margin:4px auto}
.nav-mask{
  position:fixed;inset:0;background:rgba(12,42,36,.45);z-index:85;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}
body.no-scroll{overflow:hidden}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-amber{background:var(--c-amber);color:var(--c-ink);box-shadow:0 4px 14px rgba(217,140,43,.28)}
.btn-amber:hover{background:#C87F20;box-shadow:0 10px 24px rgba(217,140,43,.32)}
.btn-primary{background:var(--c-ink);color:#fff}
.btn-primary:hover{background:#0E2F28;box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.62)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-outline{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-outline:hover{border-color:var(--c-ink);box-shadow:var(--sh-1)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:13px 28px;font-size:16px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease,gap .2s ease;
}
.text-link::after{content:"→";transition:transform .2s ease}
.text-link:hover{color:var(--c-amber)}
.text-link:hover::after{transform:translateX(3px)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--c-ink-900)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,42,36,.94) 0%,rgba(12,42,36,.80) 48%,rgba(12,42,36,.56) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
  padding-top:78px;padding-bottom:124px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:rgba(217,140,43,.18);color:#F3C177;font-size:13px;font-weight:600;
  border:1px solid rgba(217,140,43,.36);
}
.hero h1{color:#fff;margin-top:20px;max-width:640px}
.hero-sub{margin-top:18px;font-size:19px;line-height:1.65;color:rgba(255,255,255,.88);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:32px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82)}
.hero-points li::before{
  content:"";width:14px;height:14px;flex:0 0 auto;border-radius:50%;
  background:rgba(217,140,43,.22);border:1px solid var(--c-amber);
}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.16);
  box-shadow:var(--sh-3);background:rgba(255,255,255,.06);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{
  position:absolute;right:-10px;bottom:-26px;min-width:210px;
  background:#fff;border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-3);
}
.float-num{font-size:30px;font-weight:700;color:var(--c-ink);letter-spacing:-.5px;line-height:1.1;font-variant-numeric:tabular-nums}
.float-label{font-size:13px;color:var(--c-text-2);margin-top:4px}

/* metrics */
.metrics-wrap{position:relative;z-index:5;margin-top:-68px}
.metrics{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.metric{padding:28px 26px;border-left:1px solid var(--c-line)}
.metric:first-child{border-left:0}
.metric-num{font-size:42px;font-weight:700;color:var(--c-ink);letter-spacing:-.5px;line-height:1.1;font-variant-numeric:tabular-nums}
.metric-num small{font-size:15px;font-weight:600;color:var(--c-text-2);margin-left:4px;letter-spacing:0}
.metric-label{font-size:14px;color:var(--c-text-2);margin-top:6px}
.trend{
  display:inline-flex;align-items:center;gap:4px;margin-top:12px;
  padding:3px 10px;border-radius:999px;font-size:13px;font-weight:600;
}
.trend.up{background:rgba(46,139,110,.12);color:var(--c-up)}
.trend.down{background:rgba(192,85,47,.12);color:var(--c-down)}

/* section head */
.section-head{margin-bottom:38px;max-width:780px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-amber);letter-spacing:1px;margin-bottom:10px;
}
.eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-amber)}
.section-head h2{color:var(--c-ink)}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:16px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* board */
.board{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px 28px;box-shadow:var(--sh-1);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.panel-head h3{font-size:19px;color:var(--c-ink)}
.panel-head span{font-size:13px;color:var(--c-mist)}
.rank-item{
  display:grid;grid-template-columns:34px 1fr auto;align-items:center;gap:14px;
  padding:14px 0;border-top:1px dashed var(--c-line);
}
.rank-no{font-size:18px;font-weight:700;color:var(--c-mist);font-variant-numeric:tabular-nums}
.rank-item.is-top .rank-no{color:var(--c-amber)}
.rank-title{
  font-size:15px;font-weight:600;color:var(--c-text);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-bar{height:6px;border-radius:999px;background:#EFECE6;margin-top:8px;overflow:hidden}
.rank-bar i{display:block;height:100%;border-radius:999px;background:var(--c-ink)}
.rank-item.is-top .rank-bar i{background:var(--c-amber)}
.rank-val{font-size:14px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.day{
  border:1px solid var(--c-line);border-radius:12px;background:#FBFAF7;
  padding:10px 4px;text-align:center;
}
.day.is-live{background:var(--c-amber-soft);border-color:#EBD3A8}
.day-name{font-size:12px;color:var(--c-text-2)}
.day-num{font-size:17px;font-weight:700;color:var(--c-ink);margin-top:2px;font-variant-numeric:tabular-nums}
.day-tip{font-size:11px;color:var(--c-mist);margin-top:2px}
.cal-note{margin-top:18px;font-size:14px;color:var(--c-text-2);line-height:1.8}

/* service grid */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;gap:12px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D1C4}
.card-feature{
  grid-column:span 2;flex-direction:row;padding:0;overflow:hidden;gap:0;align-items:stretch;
}
.card-feature .feature-media{flex:0 0 46%;overflow:hidden;background:#EFECE6}
.card-feature .feature-media img{width:100%;height:100%;min-height:260px;object-fit:cover}
.card-feature .feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.card-no{font-size:32px;font-weight:700;color:rgba(217,140,43,.38);line-height:1;font-variant-numeric:tabular-nums}
.card-ico{
  width:42px;height:42px;border-radius:12px;background:rgba(18,58,50,.07);
  display:grid;place-items:center;color:var(--c-ink);
}
.card-ico svg{width:20px;height:20px}
.card h3{color:var(--c-ink)}
.card p{font-size:14.5px;line-height:1.75;color:var(--c-text-2)}
.card .card-foot{margin-top:auto;padding-top:6px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--c-amber-soft);color:#8A5A12;font-size:12px;font-weight:600;
}
.tag-plain{background:#F1EFEA;color:var(--c-text-2)}

/* compare */
.compare{
  display:grid;grid-template-columns:1fr 1fr;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
}
.compare-col{padding:30px 28px}
.compare-col.left{background:var(--c-alt);border-right:1px dashed var(--c-line)}
.compare-col.right{background:rgba(18,58,50,.055)}
.compare-col h3{margin-bottom:18px;color:var(--c-ink)}
.compare-list li{display:flex;gap:10px;padding:9px 0;font-size:15px;color:var(--c-text-2);line-height:1.7}
.compare-list .mark{
  width:20px;height:20px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px;
}
.compare-col.left .mark{background:rgba(93,105,99,.14);color:var(--c-text-2)}
.compare-col.right .mark{background:rgba(46,139,110,.16);color:var(--c-up)}
.compare-bars{margin-top:26px;display:grid;gap:16px}
.cbar{display:grid;grid-template-columns:132px 1fr auto;align-items:center;gap:16px;font-size:14px;color:var(--c-text-2)}
.cbar-track{height:12px;border-radius:999px;background:#EFECE6;overflow:hidden}
.cbar-fill{height:100%;border-radius:999px;background:var(--c-mist)}
.cbar-fill.accent{background:var(--c-ink)}
.cbar-val{font-variant-numeric:tabular-nums;font-weight:600;color:var(--c-ink)}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:#EFECE6}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.badge{
  align-self:flex-start;display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;background:var(--c-amber-soft);
  color:#8A5A12;font-size:12px;font-weight:600;
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-title a:hover{color:var(--c-amber)}
.news-summary{
  font-size:13px;line-height:22px;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-mist);
}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-lg);background:rgba(255,255,255,.7);
  padding:56px 24px;text-align:center;color:var(--c-text-2);
}
.empty-state svg{width:44px;height:44px;color:var(--c-mist);margin:0 auto 14px}
.empty-state p{font-size:15px;margin-bottom:12px}

/* faq */
.faq-list{border-top:1px solid var(--c-line);background:transparent}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:22px 4px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-text);transition:color .2s ease;
}
.faq-q:hover{color:var(--c-ink)}
.faq-q .idx{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;
  background:var(--c-amber-soft);color:#8A5A12;font-size:13px;font-weight:700;
  display:grid;place-items:center;
}
.faq-q .sign{
  position:relative;margin-left:auto;width:26px;height:26px;flex:0 0 auto;
  border:1px solid var(--c-line);border-radius:50%;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink);border-radius:2px;
}
.faq-q .sign::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-q .sign::after{width:2px;height:12px;transform:translate(-50%,-50%);transition:transform .25s ease}
.faq-item.is-open .sign::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-item.is-open .faq-q{color:var(--c-ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 4px 26px 44px;font-size:16px;line-height:28px;color:var(--c-text-2);max-width:880px}

/* cta form */
.cta-wrap{
  position:relative;overflow:hidden;background:var(--c-ink-900);color:#fff;
  border-radius:24px;padding:46px;
  display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start;
}
.cta-wrap::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border-radius:50%;background:rgba(217,140,43,.12);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{color:#fff;font-size:30px}
.cta-copy .lead{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.78)}
.cta-list{margin-top:24px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list .dot{
  width:20px;height:20px;flex:0 0 auto;border-radius:50%;margin-top:3px;
  background:rgba(217,140,43,.24);color:#F3C177;display:grid;place-items:center;font-size:12px;font-weight:700;
}
.contact-row{
  margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:grid;gap:10px;font-size:14px;color:rgba(255,255,255,.76);
}
.contact-row span b{color:#fff;font-weight:600}
.form-card{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-lg);
  padding:28px;color:var(--c-text);box-shadow:var(--sh-3);
}
.form-card h3{color:var(--c-ink);margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--c-text-2);margin-bottom:18px}
.field{margin-bottom:15px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#FBFAF7;outline:none;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-ink);background:#fff;box-shadow:0 0 0 3px rgba(18,58,50,.10);
}
.field textarea{resize:vertical;min-height:96px}
.field.has-error input{border-color:var(--c-down)}
.field .err{display:none;font-size:13px;color:var(--c-down);margin-top:5px}
.field.has-error .err{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--c-text-2);margin:6px 0 18px}
.check input{margin-top:3px;width:15px;height:15px;accent-color:var(--c-ink);flex:0 0 auto}
.form-note{
  display:none;margin-top:12px;padding:10px 14px;border-radius:var(--r-input);
  background:rgba(46,139,110,.12);color:var(--c-up);font-size:13.5px;font-weight:600;
}
.form-note.is-show{display:block}

/* footer */
.site-footer{background:var(--c-ink-900);color:rgba(255,255,255,.72);margin-top:88px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(217,140,43,.5)}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:var(--c-amber);letter-spacing:.6px;margin-bottom:16px}
.footer-links li{margin-bottom:10px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.7);transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-contact li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.7)}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--c-ink);color:#fff;display:grid;place-items:center;border:0;cursor:pointer;
  box-shadow:var(--sh-2);z-index:70;opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px)}
.to-top svg{width:18px;height:18px}

/* responsive */
@media (max-width:1279px){
  h1{font-size:40px}
  .hero-inner{gap:40px;padding-top:66px;padding-bottom:118px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .search-box{width:180px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(80vw,330px);
    background:#fff;padding:88px 18px 24px;margin:0;z-index:90;
    transform:translateX(100%);transition:transform .28s ease;
    box-shadow:var(--sh-3);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{
    position:relative;display:flex;align-items:center;height:52px;
    padding:0 14px;font-size:16px;border-radius:10px;
  }
  .main-nav .is-active a::after{display:none}
  .main-nav .is-active a{background:var(--c-amber-soft)}
  .main-nav .is-active a::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
    background:var(--c-amber);border-radius:3px;
  }
  .menu-toggle{display:grid}
  .search-box{display:none}
  .hero-inner{grid-template-columns:1fr;padding-bottom:96px}
  .hero h1{max-width:100%}
  .hero-visual{margin-top:8px}
  .float-card{right:0;bottom:-20px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:1px solid var(--c-line)}
  .metric:nth-child(1),.metric:nth-child(3){border-left:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-line)}
  .board{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare-col.left{border-right:0;border-bottom:1px dashed var(--c-line)}
  .card-feature{grid-column:span 2}
  .cta-wrap{grid-template-columns:1fr;padding:34px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  h1{font-size:31px}
  h2{font-size:24px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .header-inner{gap:12px}
  .brand-text{font-size:15px}
  .hero-inner{padding-top:48px;padding-bottom:88px}
  .hero-sub{font-size:17px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{gap:8px 18px}
  .metrics-wrap{margin-top:-48px}
  .metric{padding:22px 18px}
  .metric-num{font-size:34px}
  .service-grid{grid-template-columns:1fr}
  .card-feature{grid-column:span 1;flex-direction:column}
  .card-feature .feature-media{flex:0 0 auto}
  .card-feature .feature-media img{min-height:0;aspect-ratio:16/10;height:auto}
  .news-grid{grid-template-columns:1fr}
  .calendar{grid-template-columns:repeat(4,1fr)}
  .cbar{grid-template-columns:1fr;gap:8px}
  .faq-q{font-size:16.5px;gap:12px}
  .faq-a-inner{padding-left:4px}
  .form-row{grid-template-columns:1fr}
  .cta-wrap{padding:26px 20px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:56px;padding-top:48px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:480px){
  h1{font-size:27px}
  .metric-num{font-size:30px}
  .float-card{position:static;margin-top:14px;min-width:0}
  .hero-figure img{aspect-ratio:16/11}
  .eyebrow{letter-spacing:.4px}
  .compare-col{padding:24px 20px}
  .panel{padding:22px 20px}
}

/* roulang page: article */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-amber:#D98C2B;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --c-soft:#F1EDE5;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,58,50,.06);
  --shadow-2:0 10px 28px rgba(18,58,50,.12);
  --shadow-3:0 18px 44px rgba(18,58,50,.16);
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-amber);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,58,50,.10);}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-ink);
  display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1.5px rgba(217,140,43,.75);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;
  padding:8px 13px;border-radius:8px;
  font-size:15px;color:var(--c-text-2);font-weight:500;
  transition:color .18s ease,background-color .18s ease;
}
.main-nav a:hover{color:var(--c-ink);background:var(--c-soft);}
.main-nav li.is-active a{color:var(--c-ink);font-weight:700;}
.main-nav li.is-active a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;background:var(--c-amber);
}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{
  position:relative;width:220px;
}
.search-box input{
  width:100%;height:40px;padding:0 14px 0 38px;
  border:1px solid var(--c-line);border-radius:var(--radius-sm);
  background:#FCFBF8;font-size:14px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:#9AA6A1;}
.search-box input:focus{outline:none;border-color:var(--c-ink);box-shadow:0 0 0 3px rgba(18,58,50,.10);}
.search-box .search-icon{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--c-mist);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-amber{background:var(--c-amber);color:var(--c-ink-900);box-shadow:var(--shadow-1);}
.btn-amber:hover{background:#C87F22;color:var(--c-ink-900);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-ink{background:var(--c-ink);color:#fff;box-shadow:var(--shadow-1);}
.btn-ink:hover{background:var(--c-ink-900);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.65);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-outline{background:transparent;border:1px solid var(--c-line);color:var(--c-ink);}
.btn-outline:hover{border-color:var(--c-ink);color:var(--c-ink);background:var(--c-soft);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-mask{
  position:fixed;inset:0;background:rgba(12,42,36,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:110;
}
.nav-mask.is-open{opacity:1;visibility:visible;}
.read-bar{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:var(--c-amber);z-index:200;transition:width .1s linear;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:20px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:var(--c-mist);}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-amber);}
.breadcrumb li[aria-current]{color:var(--c-ink);font-weight:600;}

/* ---------- Article head ---------- */
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--c-line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.badge-amber{background:var(--c-amber-soft);color:#8A5711;}
.badge-ink{background:rgba(18,58,50,.09);color:var(--c-ink);}
.article-head h1{
  margin:16px 0 0;
  font-size:34px;line-height:1.38;font-weight:700;color:var(--c-ink);
  letter-spacing:-.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:18px;font-size:13px;color:var(--c-text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-mist);}

/* ---------- Layout ---------- */
.article-wrap{padding:40px 0 64px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;
}
.article-main{min-width:0;}
.article-cover{
  border-radius:var(--radius-lg);overflow:hidden;margin-bottom:32px;
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover;}

/* ---------- Article body ---------- */
.article-body{
  font-size:16px;line-height:1.85;color:var(--c-text);
  max-width:820px;
}
.article-body p{margin:1em 0;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.42;font-weight:700;color:var(--c-ink);
  margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;width:4px;height:22px;border-radius:2px;background:var(--c-amber);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--c-ink);margin:32px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:1em 0;}
.article-body ul li{position:relative;padding-left:22px;margin:.5em 0;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;background:var(--c-ink);border-radius:1px;
}
.article-body ol{counter-reset:li;padding-left:0;}
.article-body ol li{position:relative;padding-left:30px;margin:.5em 0;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.18em;
  width:20px;height:20px;border-radius:6px;background:var(--c-amber-soft);color:#8A5711;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:#FFFCF6;
  border-left:3px solid var(--c-ink);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--c-text-2);font-size:15.5px;
}
.article-body blockquote p{margin:.4em 0;}
.article-body img{border-radius:12px;margin:22px 0;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-2);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(18,58,50,.35);}
.article-body a:hover{color:var(--c-amber);text-decoration-color:var(--c-amber);}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body thead th{background:var(--c-soft);color:var(--c-ink);font-weight:600;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--c-line);text-align:left;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body strong{font-weight:600;color:var(--c-ink);}
.article-body hr{border:0;border-top:1px dashed var(--c-line);margin:36px 0;}

.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--radius-lg);
  background:var(--c-surface);padding:64px 24px;text-align:center;
}
.empty-state .empty-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:var(--c-soft);display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-ico svg{width:26px;height:26px;stroke:var(--c-mist);}
.empty-state h2{font-size:20px;color:var(--c-ink);margin-bottom:8px;}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:20px;}

/* ---------- Sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:calc(var(--header-h) + 22px);}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:9px;
  font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:16px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-amber);}
.heat-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--c-line);}
.heat-list li:last-child{border-bottom:0;padding-bottom:0;}
.heat-rank{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;background:var(--c-soft);color:var(--c-text-2);
}
.heat-list li:nth-child(-n+3) .heat-rank{background:var(--c-amber);color:var(--c-ink-900);}
.heat-body{flex:1 1 auto;min-width:0;}
.heat-body a{
  display:block;font-size:14px;line-height:1.5;color:var(--c-text);
  margin-bottom:8px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.heat-body a:hover{color:var(--c-amber);}
.heat-track{height:5px;border-radius:3px;background:#EFEAE1;overflow:hidden;}
.heat-fill{height:100%;border-radius:3px;background:var(--c-ink);}
.heat-meta{font-size:12px;color:var(--c-mist);margin-top:6px;}
.side-cta{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.side-cta .side-title{color:#fff;}
.side-cta .side-title::before{background:var(--c-amber);}
.side-cta p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.78);margin-bottom:18px;}
.side-cta .btn{width:100%;}
.side-list li{font-size:14px;color:var(--c-text-2);padding:9px 0;border-bottom:1px dashed var(--c-line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{color:var(--c-text);}
.side-list a:hover{color:var(--c-amber);}

/* ---------- Footer actions ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag-group{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--radius-pill);background:var(--c-soft);
  font-size:13px;color:var(--c-text-2);transition:background-color .18s ease,color .18s ease;
}
.tag:hover{background:var(--c-amber-soft);color:#8A5711;}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-2);}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#fff;display:flex;align-items:center;justify-content:center;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.icon-btn svg{width:17px;height:17px;stroke:var(--c-ink);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{border-color:var(--c-ink);transform:translateY(-2px);box-shadow:var(--shadow-1);}

/* ---------- Related ---------- */
.section{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:24px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;width:4px;height:20px;border-radius:2px;background:var(--c-amber);
}
.section-head p{font-size:14px;color:var(--c-text-2);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8D0C2;}
.card:active{transform:translateY(1px);}
.card-thumb{overflow:hidden;background:var(--c-soft);}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-body h3{color:var(--c-amber);}
.card-body p{
  font-size:13.5px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--c-mist);
}
.card-foot .more{color:var(--c-ink);font-weight:600;}
.card:hover .card-foot .more{color:var(--c-amber);}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:var(--c-ink);border-radius:var(--radius-lg);
  padding:36px 40px;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:24px;box-shadow:var(--shadow-2);
}
.cta-strip h2{font-size:22px;color:#fff;margin-bottom:8px;}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.75);}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink-900);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.06);}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700;}
.footer-about{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--c-amber);margin-bottom:16px;letter-spacing:.4px;}
.footer-links li,.footer-contact li{font-size:13.5px;line-height:1.7;margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--c-amber);}
.footer-contact li{color:rgba(255,255,255,.62);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--c-ink);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;z-index:90;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-amber);color:var(--c-ink-900);}
.to-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- Skeleton ---------- */
.skeleton{
  background:linear-gradient(90deg,#EEE9E0 25%,#F6F2EA 37%,#EEE9E0 63%);
  background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:6px;
}
@keyframes shimmer{0%{background-position:100% 0;}100%{background-position:-100% 0;}}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 272px;gap:36px;}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;width:286px;height:100%;
    background:var(--c-surface);padding:86px 0 24px;overflow-y:auto;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:var(--shadow-3);z-index:130;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav a{display:flex;align-items:center;height:52px;padding:0 24px;border-radius:0;border-bottom:1px solid var(--c-line);font-size:15px;}
  .main-nav a:hover{background:var(--c-soft);}
  .main-nav li.is-active a{box-shadow:inset 3px 0 0 var(--c-amber);background:#FBF9F5;}
  .main-nav li.is-active a::after{display:none;}
  .nav-toggle{display:flex;}
  .search-box{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-inner{gap:16px;}
  .brand-text{font-size:16px;}
  .article-head h1{font-size:25px;line-height:1.45;}
  .article-body{font-size:15.5px;line-height:1.8;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .section{padding:44px 0;}
  .section-head h2{font-size:20px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-strip{padding:28px 22px;border-radius:var(--radius-md);}
  .cta-strip .cta-actions{width:100%;}
  .cta-strip .btn{flex:1 1 auto;}
  .article-cover img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .btn{height:44px;padding:0 16px;font-size:14.5px;}
  .article-head{padding:20px 0 24px;}
  .article-head h1{font-size:22px;}
  .article-meta{gap:8px 14px;}
  .side-card{padding:18px;}
  .to-top{right:16px;bottom:18px;width:44px;height:44px;}
}

/* roulang page: category1 */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-amber:#D98C2B;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(18,58,50,.06);
  --sh-2:0 10px 28px rgba(18,58,50,.12);
  --sh-3:0 18px 44px rgba(18,58,50,.16);
  --sp-section:88px;
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:var(--c-text);}
h1{font-size:40px;letter-spacing:-.4px;}
h2{font-size:30px;letter-spacing:-.3px;}
h3{font-size:22px;font-weight:600;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,58,50,.08);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--c-ink);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.2px;
  white-space:nowrap;
}
.main-nav{margin-left:8px;}
.main-nav ul{display:flex;align-items:center;gap:2px;}
.main-nav a{
  position:relative;
  display:block;
  padding:9px 13px;
  font-size:15px;
  color:var(--c-text-2);
  border-radius:var(--r-sm);
}
.main-nav a:hover{color:var(--c-ink);background:#F1EFE9;}
.main-nav li.is-active a{color:var(--c-ink);font-weight:700;}
.main-nav li.is-active a::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--c-amber);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;width:224px;}
.search-box svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--c-mist);fill:none;stroke-width:2;
}
.search-box input{
  width:100%;height:40px;
  padding:0 14px 0 36px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#FAF9F6;
  font-size:14px;
  transition:border-color .18s ease,background-color .18s ease;
}
.search-box input::placeholder{color:#9AA5A0;}
.search-box input:focus{outline:none;border-color:var(--c-ink);background:#fff;box-shadow:0 0 0 3px rgba(18,58,50,.08);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-amber);color:#123A32;box-shadow:0 2px 0 rgba(18,58,50,.08);}
.btn-primary:hover{background:#C97F22;transform:translateY(-2px);box-shadow:0 10px 24px rgba(217,140,43,.28);}
.btn-outline{border:1px solid var(--c-line);background:#fff;color:var(--c-ink);}
.btn-outline:hover{border-color:var(--c-ink);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost-light{border:1px solid rgba(255,255,255,.6);color:#fff;background:transparent;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.header-cta{white-space:nowrap;}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:80%;
  max-width:340px;
  background:#fff;
  z-index:200;
  transform:translateX(102%);
  transition:transform .28s ease;
  box-shadow:var(--sh-3);
  padding:20px 0;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--c-line);}
.drawer-head strong{font-size:16px;color:var(--c-ink);}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);font-size:18px;color:var(--c-text-2);line-height:1;}
.drawer-nav{padding:8px 0;}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 20px;
  font-size:16px;
  color:var(--c-text);
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:#F6F4EF;}
.drawer-nav li.is-active a{color:var(--c-ink);font-weight:700;border-left-color:var(--c-amber);background:#F8F6F1;}
.drawer-foot{padding:18px 20px 0;border-top:1px solid var(--c-line);margin-top:10px;}
.drawer-foot .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(12,42,36,.42);
  z-index:190;
  opacity:0;visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(105deg,rgba(12,42,36,.9) 0%,rgba(12,42,36,.74) 52%,rgba(12,42,36,.6) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:56px 0 64px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--c-amber);}
.crumb .sep{color:rgba(255,255,255,.4);}
.crumb .current{color:#fff;font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(246,231,206,.16);
  border:1px solid rgba(217,140,43,.5);
  color:var(--c-amber-soft);
  font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;
  margin-bottom:18px;
}
.page-hero h1{color:#fff;font-size:42px;line-height:1.24;margin-bottom:16px;}
.page-hero h1 em{font-style:normal;color:var(--c-amber);}
.hero-lead{
  font-size:18px;
  line-height:1.72;
  color:rgba(255,255,255,.86);
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stat{
  background:rgba(255,255,255,.97);
  border-radius:var(--r-lg);
  padding:26px 26px 22px;
  color:var(--c-text);
  box-shadow:var(--sh-3);
  border:1px solid rgba(255,255,255,.4);
}
.hero-stat-num{
  font-size:52px;
  font-weight:700;
  color:var(--c-ink);
  line-height:1;
  letter-spacing:-.5px;
  font-variant-numeric:tabular-nums;
}
.hero-stat-num small{font-size:18px;font-weight:600;margin-left:4px;color:var(--c-mist);}
.hero-stat-label{font-size:14px;color:var(--c-text-2);margin-top:10px;}
.hero-stat-list{margin-top:18px;border-top:1px dashed var(--c-line);padding-top:14px;display:grid;gap:10px;}
.hero-stat-list li{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-2);}
.hero-stat-list b{color:var(--c-ink);font-variant-numeric:tabular-nums;font-size:14px;}
.trend{
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;font-weight:700;
  padding:2px 9px;border-radius:999px;
  background:rgba(46,139,110,.12);
  color:var(--c-up);
}
.trend.down{background:rgba(192,85,47,.12);color:var(--c-down);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;
  letter-spacing:.08em;
  color:var(--c-amber);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:4px;border-radius:2px;background:var(--c-amber);}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--c-text-2);font-size:16px;margin:0;}

/* ---------- 时间线 ---------- */
.timeline-layout{display:grid;grid-template-columns:1.4fr .85fr;gap:44px;align-items:start;}
.timeline{position:relative;}
.timeline-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:20px;padding-bottom:30px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:27px;top:60px;bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--c-line),rgba(229,223,213,.3));
}
.timeline-item:last-child::before{display:none;}
.step-num{
  width:56px;height:56px;border-radius:50%;
  background:var(--c-ink);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(18,58,50,.22);
  position:relative;z-index:1;
}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-card h3{font-size:20px;margin-bottom:8px;}
.step-card p{color:var(--c-text-2);font-size:15px;margin-bottom:12px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--c-amber-soft);
  color:#8A5A16;
}
.tag-plain{background:#EFEDE7;color:var(--c-text-2);}
.tag-ink{background:rgba(18,58,50,.08);color:var(--c-ink);}

.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  position:sticky;
  top:92px;
}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-card-body{padding:22px 24px 24px;}
.side-card-body h3{font-size:19px;margin-bottom:10px;}
.side-card-body p{font-size:14px;color:var(--c-text-2);margin-bottom:14px;}
.side-list{display:grid;gap:9px;}
.side-list li{display:flex;gap:9px;font-size:14px;color:var(--c-text-2);}
.side-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:2px;background:var(--c-amber);}

/* ---------- 清单表 ---------- */
.checklist{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.checklist-head,.checklist-row{
  display:grid;
  grid-template-columns:1.15fr 1fr 1.25fr 104px;
  gap:16px;
  padding:16px 24px;
  align-items:center;
}
.checklist-head{
  background:#F2F0EA;
  font-size:13px;
  font-weight:700;
  color:var(--c-text-2);
  letter-spacing:.02em;
}
.checklist-row{border-top:1px solid var(--c-line);font-size:15px;transition:background-color .16s ease;}
.checklist-row:hover{background:#FCFBF8;}
.checklist-row .item-name{font-weight:700;color:var(--c-ink);}
.checklist-row .col-plain{color:var(--c-text-2);font-size:14px;}
.checklist-row .col-focus{color:var(--c-text);font-size:14px;}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:700;
  padding:4px 11px;border-radius:999px;
  white-space:nowrap;
}
.badge-pass{background:rgba(46,139,110,.13);color:var(--c-up);}
.badge-warn{background:rgba(217,140,43,.16);color:#8A5A16;}
.badge-fail{background:rgba(192,85,47,.13);color:var(--c-down);}
.cell-label{display:none;font-size:12px;color:var(--c-mist);font-weight:700;margin-right:6px;}

/* ---------- 对照条 ---------- */
.compare{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:30px 32px;
  box-shadow:var(--sh-1);
}
.compare-row{margin-bottom:26px;}
.compare-row:last-child{margin-bottom:0;}
.compare-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px;}
.compare-top span{font-size:15px;font-weight:600;}
.compare-top b{font-size:20px;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.bar{height:10px;border-radius:999px;background:#EDEAE3;overflow:hidden;}
.bar span{display:block;height:100%;border-radius:999px;}
.bar-ink span{background:linear-gradient(90deg,var(--c-ink),#2A6459);}
.bar-amber span{background:linear-gradient(90deg,var(--c-amber),#E7A94F);}
.bar-mist span{background:linear-gradient(90deg,var(--c-mist),#A6BDB7);}

/* ---------- FAQ ---------- */
.faq{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--c-text);
  transition:background-color .16s ease;
}
.faq-q:hover{background:#FBFAF7;}
.faq-index{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  background:var(--c-amber-soft);
  color:#8A5A16;
  font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.faq-icon{
  margin-left:auto;flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--c-ink);
  transition:transform .22s ease,background-color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-ink);color:#fff;border-color:var(--c-ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 24px 22px 68px;font-size:16px;line-height:1.78;color:var(--c-text-2);}

/* ---------- CTA 表单 ---------- */
.cta-wrap{
  background:var(--c-ink-900);
  border-radius:var(--r-lg);
  padding:52px 48px;
  position:relative;
  overflow:hidden;
}
.cta-wrap::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,140,43,.22),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:16px;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.86);font-size:15px;}
.cta-points li::before{
  content:"";
  flex:0 0 auto;width:18px;height:18px;margin-top:4px;border-radius:50%;
  background:rgba(217,140,43,.2);
  border:1px solid rgba(217,140,43,.7);
}
.form-card{
  background:#fff;
  border-radius:var(--r-lg);
  padding:30px 30px 32px;
  box-shadow:var(--sh-3);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-hint{font-size:13px;color:var(--c-text-2);margin-bottom:20px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--c-text-2);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#FCFBF8;
  padding:11px 14px;
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-ink);
  background:#fff;
  box-shadow:0 0 0 3px rgba(18,58,50,.1);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA5A0;}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-text-2);margin:4px 0 20px;}
.agree input{width:17px;height:17px;margin-top:3px;accent-color:var(--c-ink);flex:0 0 auto;}
.form-card .btn-primary{width:100%;}
.form-foot{font-size:12px;color:var(--c-mist);text-align:center;margin-top:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink-900);color:#CBD8D4;padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(217,140,43,.45);}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:-.2px;}
.footer-about{font-size:14px;line-height:1.8;color:#9FB3AD;margin:0;}
.footer-title{font-size:14px;font-weight:700;color:var(--c-amber);margin-bottom:16px;}
.footer-links,.footer-contact{display:grid;gap:10px;}
.footer-links a,.footer-contact li{font-size:14px;color:#B7C7C2;}
.footer-links a:hover{color:var(--c-amber);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FA39D;
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:26px;
  width:46px;height:46px;
  border-radius:50%;
  background:var(--c-ink);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background-color .2s ease;
  z-index:130;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-amber);color:var(--c-ink);}
.to-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{grid-template-columns:1.3fr .85fr;gap:34px;}
  .timeline-layout{grid-template-columns:1.35fr .9fr;gap:32px;}
  .page-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .main-nav,.search-box{display:none;}
  .hamburger{display:flex;}
  .header-inner{gap:14px;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-stat{position:static;}
  .timeline-layout{grid-template-columns:1fr;}
  .side-card{position:static;}
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .cta-wrap{padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .checklist-head,.checklist-row{grid-template-columns:1fr 1fr 1fr 96px;padding:14px 18px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  .container{padding:0 18px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .page-hero{padding:34px 0 44px;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .header-cta{display:none;}
  .section-head{margin-bottom:30px;}
  .timeline-item{grid-template-columns:44px 1fr;gap:14px;}
  .step-num{width:44px;height:44px;font-size:17px;}
  .timeline-item::before{left:21px;top:48px;}
  .step-card{padding:18px 18px;}
  .checklist-head{display:none;}
  .checklist-row{grid-template-columns:1fr;gap:8px;padding:16px 18px;}
  .cell-label{display:inline;}
  .compare{padding:22px 20px;}
  .faq-q{padding:16px 18px;font-size:16px;gap:12px;}
  .faq-a-inner{padding:0 18px 18px 58px;}
  .cta-wrap{padding:30px 20px;border-radius:var(--r-card);}
  .form-card{padding:22px 20px 24px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:479px){
  h1{font-size:27px;}
  .page-hero h1{font-size:26px;}
  .hero-stat-num{font-size:42px;}
  .section{padding:44px 0;}
  .brand-text{font-size:15px;}
  .btn{padding:10px 16px;font-size:14px;}
}

/* roulang page: category2 */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-amber:#D98C2B;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-lg:18px;
  --sh-1:0 1px 2px rgba(18,58,50,.06);
  --sh-2:0 10px 28px rgba(18,58,50,.12);
  --sh-3:0 18px 44px rgba(18,58,50,.16);
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--surface{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-amber);
  font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:22px;background:var(--c-ink);border-radius:2px;display:block;}
h2.section-title{
  font-size:30px;line-height:1.32;font-weight:700;color:var(--c-text);
  letter-spacing:-.3px;margin-bottom:14px;
}
.section-desc{font-size:16px;color:var(--c-text-2);line-height:1.8;}
h3{font-size:22px;line-height:1.4;font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-amber);color:var(--c-ink-900);box-shadow:var(--sh-1);}
.btn-primary:hover{background:#c97f24;box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-solid{background:var(--c-ink);color:#fff;}
.btn-solid:hover{background:var(--c-ink-900);box-shadow:var(--sh-2);transform:translateY(-2px);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-ink);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--c-amber-soft);color:#8a5411;line-height:1.7;
}
.badge-up{background:rgba(46,139,110,.14);color:var(--c-up);}
.badge-down{background:rgba(192,85,47,.13);color:var(--c-down);}
.badge-ink{background:rgba(18,58,50,.1);color:var(--c-ink);}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;background:var(--c-surface);
  border:1px solid var(--c-line);font-size:14px;color:var(--c-text-2);
}
.chip b{color:var(--c-ink);font-weight:600;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,58,50,.09);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--c-ink);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--c-ink);}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:26px;}
.main-nav a{
  display:inline-block;position:relative;padding:6px 0;font-size:15px;
  color:var(--c-text-2);transition:color .18s ease;
}
.main-nav a:hover{color:var(--c-ink);}
.main-nav li.is-active a{color:var(--c-ink);font-weight:700;}
.main-nav li.is-active a::after{
  content:"";position:absolute;left:0;right:0;bottom:-21px;height:2px;
  background:var(--c-amber);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:226px;height:40px;
  padding:0 14px;border:1px solid var(--c-line);border-radius:999px;
  background:var(--c-bg);transition:border-color .18s ease,background-color .18s ease;
}
.search-box:focus-within{border-color:var(--c-ink);background:var(--c-surface);}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--c-mist);}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-mist);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--radius-btn);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s 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);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,42,36,.5);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
  background:var(--c-surface);z-index:80;transform:translateX(100%);
  transition:transform .28s ease;box-shadow:var(--sh-3);
  display:flex;flex-direction:column;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--c-line);
}
.drawer-head strong{font-size:16px;color:var(--c-ink);}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-line);background:var(--c-surface);
  border-radius:var(--radius-btn);cursor:pointer;font-size:18px;color:var(--c-text-2);line-height:1;
}
.drawer-nav{padding:10px 0;flex:1 1 auto;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:52px;padding:0 20px;
  font-size:15px;color:var(--c-text-2);border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--c-bg);color:var(--c-ink);}
.drawer-nav li.is-active a{color:var(--c-ink);font-weight:700;border-left-color:var(--c-amber);background:var(--c-bg);}
.drawer-foot{padding:18px 20px;border-top:1px solid var(--c-line);}
.drawer-foot .btn{width:100%;}

/* ---------- 内页首屏 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink-900);}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(12,42,36,.92) 0%,rgba(12,42,36,.76) 52%,rgba(12,42,36,.58) 100%);
}
.page-hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .85fr;
  gap:48px;align-items:center;padding-top:76px;padding-bottom:76px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(217,140,43,.18);color:#F0C079;border:1px solid rgba(217,140,43,.4);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:42px;line-height:1.24;font-weight:700;color:#fff;
  letter-spacing:-.5px;margin-bottom:18px;
}
.hero-lead{font-size:18px;line-height:1.72;color:rgba(255,255,255,.82);max-width:600px;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-card{
  background:rgba(255,255,255,.97);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--sh-3);
}
.hero-card-title{font-size:13px;color:var(--c-text-2);letter-spacing:.06em;margin-bottom:10px;}
.hero-card-num{
  font-size:46px;font-weight:700;color:var(--c-ink);letter-spacing:-.5px;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-card-num span{font-size:16px;font-weight:600;margin-left:6px;color:var(--c-text-2);}
.hero-card-label{font-size:14px;color:var(--c-text-2);margin:10px 0 16px;line-height:1.7;}
.hero-card hr{border:0;border-top:1px dashed var(--c-line);margin:18px 0;}
.hero-card-list li{
  display:flex;justify-content:space-between;gap:12px;font-size:14px;
  color:var(--c-text-2);padding:5px 0;
}
.hero-card-list b{color:var(--c-ink);font-variant-numeric:tabular-nums;}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0;background:var(--c-bg);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-2);}
.crumb li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--c-mist);}
.crumb a:hover{color:var(--c-amber);}
.crumb [aria-current="page"]{color:var(--c-ink);font-weight:600;}

/* ---------- 指标看板 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--radius-card);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--c-line);}
.metric:last-child{border-right:0;}
.metric-num{
  font-size:42px;font-weight:700;color:var(--c-ink);letter-spacing:-.5px;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.metric-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-text-2);}
.metric-label{font-size:14px;color:var(--c-text-2);margin-top:10px;}
.metric .badge{margin-top:12px;}

/* ---------- 资质卡网格 ---------- */
.qual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.qual-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.qual-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d8d0c2;}
.qual-card:active{transform:translateY(1px);}
.qual-num{
  position:absolute;top:18px;right:22px;font-size:34px;font-weight:700;
  color:rgba(217,140,43,.24);letter-spacing:-.5px;font-variant-numeric:tabular-nums;
}
.qual-icon{
  width:46px;height:46px;border-radius:12px;background:rgba(18,58,50,.07);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.qual-icon svg{width:22px;height:22px;stroke:var(--c-ink);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.qual-card h3{font-size:20px;margin-bottom:10px;}
.qual-card p{font-size:15px;color:var(--c-text-2);line-height:1.78;}
.qual-card .badge{margin-top:18px;align-self:flex-start;}

/* ---------- 横向资质信息条 ---------- */
.info-bar{
  margin-top:34px;background:var(--c-ink);border-radius:var(--radius-lg);
  padding:26px 30px;display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center;
}
.info-bar .bar-label{
  font-size:14px;font-weight:600;color:#F0C079;letter-spacing:.06em;
  padding-right:22px;border-right:1px solid rgba(255,255,255,.18);
}
.info-pill{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;
  color:rgba(255,255,255,.86);background:rgba(255,255,255,.08);
  padding:8px 16px;border-radius:999px;
}
.info-pill i{
  width:6px;height:6px;border-radius:50%;background:var(--c-amber);
  display:inline-block;flex:0 0 auto;
}

/* ---------- 对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--radius-lg);overflow:hidden;}
.compare-col{padding:34px 32px;}
.compare-col--plain{background:#EFEBE4;}
.compare-col--focus{background:rgba(18,58,50,.06);border-left:1px dashed var(--c-mist);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.compare-head h3{font-size:20px;}
.compare-icon{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;flex:0 0 auto;
}
.compare-icon--down{background:rgba(192,85,47,.14);color:var(--c-down);}
.compare-icon--up{background:rgba(46,139,110,.16);color:var(--c-up);}
.compare-list li{
  position:relative;padding-left:26px;font-size:15px;line-height:1.8;
  color:var(--c-text-2);margin-bottom:14px;
}
.compare-list li:last-child{margin-bottom:0;}
.compare-list li::before{
  position:absolute;left:0;top:0;font-weight:700;font-size:15px;
}
.compare-list--down li::before{content:"–";color:var(--c-down);}
.compare-list--up li::before{content:"✓";color:var(--c-up);}
.compare-bars{
  margin-top:34px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:26px 28px;box-shadow:var(--sh-1);
}
.bar-row{margin-bottom:20px;}
.bar-row:last-child{margin-bottom:0;}
.bar-meta{display:flex;justify-content:space-between;font-size:14px;color:var(--c-text-2);margin-bottom:9px;}
.bar-meta b{color:var(--c-ink);font-variant-numeric:tabular-nums;}
.bar-track{height:10px;border-radius:999px;background:#EFEBE4;overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;}
.bar-fill--down{width:31%;background:var(--c-down);}
.bar-fill--up{width:94%;background:var(--c-up);}

/* ---------- 步骤 / 清单表 ---------- */
.check-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);overflow:hidden;
}
.check-table th{
  background:#F1EDE6;font-size:14px;font-weight:600;color:var(--c-ink);
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--c-line);
}
.check-table td{
  padding:16px 22px;font-size:15px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);vertical-align:top;
}
.check-table tr:last-child td{border-bottom:0;}
.check-table td:first-child{color:var(--c-text);font-weight:600;width:32%;}
.table-wrap{overflow-x:auto;border-radius:var(--radius-card);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;cursor:pointer;padding:22px 0;
  font-size:18px;font-weight:600;color:var(--c-text);line-height:1.5;
}
.faq-q:hover{color:var(--c-ink);}
.faq-index{
  width:28px;height:28px;border-radius:50%;flex:0 0 auto;
  background:var(--c-amber-soft);color:#8a5411;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.faq-sign{
  margin-left:auto;flex:0 0 auto;font-size:20px;color:var(--c-mist);
  transition:transform .22s ease,color .22s ease;line-height:1;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);color:var(--c-amber);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-a-inner{padding:0 0 24px 44px;font-size:16px;line-height:1.8;color:var(--c-text-2);}

/* ---------- CTA 表单 ---------- */
.cta-wrap{
  display:grid;grid-template-columns:4fr 6fr;gap:44px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);padding:44px;box-shadow:var(--sh-1);
}
.cta-copy h2{font-size:30px;line-height:1.34;font-weight:700;margin-bottom:16px;letter-spacing:-.3px;}
.cta-copy p{color:var(--c-text-2);font-size:16px;margin-bottom:24px;}
.cta-points li{
  position:relative;padding-left:24px;margin-bottom:12px;font-size:15px;color:var(--c-text-2);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--c-ink);
}
.cta-contact{
  margin-top:26px;padding-top:22px;border-top:1px dashed var(--c-line);
  font-size:14px;color:var(--c-text-2);line-height:2;
}
.cta-contact b{color:var(--c-ink);}
.apply-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--c-text);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--c-line);
  border-radius:var(--radius-input);background:var(--c-surface);color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;outline:none;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--c-mist);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-ink);box-shadow:0 0 0 3px rgba(18,58,50,.1);
}
.field input:disabled,.field select:disabled{opacity:.4;cursor:not-allowed;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-text-2);}
.check-line input{width:18px;height:18px;flex:0 0 auto;margin-top:3px;accent-color:var(--c-ink);}
.apply-form .btn{grid-column:1 / -1;width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink-900);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);}
.footer-brand strong{font-size:16px;color:#fff;letter-spacing:-.2px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#F0C079;margin-bottom:18px;letter-spacing:.04em;}
.footer-links li,.footer-contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.66);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:50%;
  background:var(--c-ink);color:#fff;border:0;cursor:pointer;z-index:50;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background-color .2s ease;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:var(--c-ink-900);}
.to-top svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .search-box{width:180px;}
  .main-nav ul{gap:20px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .main-nav,.search-box{display:none;}
  .nav-toggle{display:flex;}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;padding-top:56px;padding-bottom:56px;}
  .page-hero h1{font-size:34px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-line);}
  .qual-grid{grid-template-columns:repeat(2,1fr);}
  .compare{grid-template-columns:1fr;}
  .compare-col--focus{border-left:0;border-top:1px dashed var(--c-mist);}
  .cta-wrap{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  h2.section-title{font-size:24px;}
  .page-hero h1{font-size:27px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .metric{padding:20px 18px;}
  .metric-num{font-size:32px;}
  .qual-grid{grid-template-columns:1fr;}
  .compare-col{padding:26px 22px;}
  .apply-form{grid-template-columns:1fr;}
  .cta-wrap{padding:24px;border-radius:var(--radius-card);}
  .faq-q{font-size:16px;gap:12px;padding:18px 0;}
  .faq-a-inner{padding-left:0;}
  .info-bar{padding:22px;gap:12px;}
  .info-bar .bar-label{border-right:0;padding-right:0;width:100%;}
  .check-table th,.check-table td{padding:13px 16px;font-size:14px;}
  .check-table td:first-child{width:38%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-about{max-width:none;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:24px;}
  .hero-card-num{font-size:38px;}
  .qual-num{font-size:28px;}
}

/* roulang page: category3 */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-amber:#D98C2B;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(18,58,50,.06);
  --sh-2:0 10px 28px rgba(18,58,50,.12);
  --sh-3:0 18px 44px rgba(18,58,50,.16);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:40px;line-height:1.2;font-weight:700}
h2{font-size:30px;line-height:1.3;font-weight:700}
h3{font-size:22px;line-height:1.4;font-weight:600}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section + .section{padding-top:0}
.section-head{margin-bottom:36px}
.section-head h2{display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--c-ink);flex:0 0 4px}
.section-head p{margin-top:12px;color:var(--c-text-2);max-width:760px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-amber);color:#2A1D06;box-shadow:0 1px 2px rgba(18,58,50,.10)}
.btn-primary:hover{background:#C97C1E;transform:translateY(-2px);box-shadow:0 10px 22px rgba(217,140,43,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-outline:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55);color:#fff}
.btn-light:hover{background:#fff;color:var(--c-ink-900);transform:translateY(-2px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink);border-bottom:1px solid rgba(18,58,50,.24);padding-bottom:2px;transition:color .2s,border-color .2s}
.link-more:hover{color:var(--c-amber);border-color:var(--c-amber)}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(18,58,50,.09)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);flex:0 0 auto}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--c-ink);display:grid;place-items:center;flex:0 0 28px}
.brand-mark svg{width:17px;height:17px}
.brand strong{font-size:16px;font-weight:700;letter-spacing:.2px}
.main-nav{flex:1 1 auto;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{position:relative;display:block;padding:9px 14px;font-size:15px;color:var(--c-text-2);border-radius:8px;transition:color .2s,background .2s}
.main-nav a:hover{color:var(--c-ink);background:#F1F0EA}
.main-nav li.is-active a{color:var(--c-ink);font-weight:700}
.main-nav li.is-active a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-amber)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  border:1px solid var(--c-line);border-radius:var(--r-input);background:#FCFBF8;
  transition:border-color .2s,box-shadow .2s;color:var(--c-mist);
}
.search-box:focus-within{border-color:var(--c-ink);box-shadow:0 0 0 3px rgba(18,58,50,.10)}
.search-box svg{width:16px;height:16px;flex:0 0 16px}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-text)}
.search-box input::placeholder{color:#93A39E}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#fff;cursor:pointer;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(12,42,36,.45);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;
  transform:translateX(100%);transition:transform .3s ease;z-index:90;
  padding:20px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--sh-3);
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:10px}
.drawer-close{width:38px;height:38px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;display:grid;place-items:center;font-size:18px;color:var(--c-ink)}
.drawer a{display:flex;align-items:center;min-height:52px;padding:0 12px;font-size:16px;color:var(--c-text-2);border-radius:10px}
.drawer a:hover{background:#F1F0EA;color:var(--c-ink)}
.drawer a.is-active{color:var(--c-ink);font-weight:700;border-left:3px solid var(--c-amber);background:#F6F5F0}
.drawer .btn{margin-top:16px;width:100%}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff}

/* 页头 */
.page-hero{
  position:relative;color:#fff;padding:56px 0 60px;
  background-image:linear-gradient(rgba(12,42,36,.80),rgba(12,42,36,.82)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:44px;align-items:end;margin-top:22px}
.page-hero h1{margin-bottom:16px}
.page-hero .lead{font-size:18px;line-height:1.8;color:rgba(255,255,255,.88);max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.data-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.20);
  border-radius:var(--r-lg);padding:24px;
}
.data-card .dc-title{font-size:13px;letter-spacing:.6px;color:rgba(255,255,255,.72);margin-bottom:14px}
.data-card .dc-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.18)}
.data-card .dc-row:last-child{border-bottom:0}
.data-card .dc-row b{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.5px;color:#fff}
.data-card .dc-row span{font-size:14px;color:rgba(255,255,255,.78)}
.data-card .dc-row em{font-style:normal;font-size:13px;color:#F0C382}

/* 指标条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.stat{padding:26px 24px;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:0}
.stat .num{font-size:44px;font-weight:700;letter-spacing:-.5px;line-height:1.1;color:var(--c-ink);font-variant-numeric:tabular-nums}
.stat .num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-text-2)}
.stat .label{font-size:14px;color:var(--c-text-2);margin-top:8px}
.badge{display:inline-flex;align-items:center;gap:4px;margin-top:10px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.badge-up{background:#E4F1EA;color:var(--c-up)}
.badge-down{background:#F8E6DE;color:var(--c-down)}
.badge-amber{background:var(--c-amber-soft);color:#8A5412}

/* 准备卡 */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prep-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D9D2C4}
.prep-card .idx{font-size:22px;font-weight:700;color:var(--c-amber);opacity:.85;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.prep-card h3{margin:10px 0 10px;font-size:19px}
.prep-card p{color:var(--c-text-2);font-size:15px}
.prep-card ul{margin-top:14px;border-top:1px dashed var(--c-line);padding-top:14px}
.prep-card li{position:relative;padding-left:16px;font-size:14px;color:var(--c-text-2);line-height:1.9}
.prep-card li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:2px;background:var(--c-ink)}

/* 指引布局 */
.guide-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:40px;align-items:start}
.toc{position:sticky;top:92px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.toc h2{font-size:15px;letter-spacing:.4px;margin-bottom:14px;color:var(--c-ink)}
.toc ol{counter-reset:toc}
.toc li + li{margin-top:2px}
.toc a{display:flex;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--c-text-2);transition:background .2s,color .2s}
.toc a:hover{background:#F1F0EA;color:var(--c-ink)}
.toc a .t-idx{font-variant-numeric:tabular-nums;color:var(--c-mist);font-weight:600}
.toc-foot{margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-text-2);line-height:1.9}
.toc-foot b{color:var(--c-ink)}

.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);margin-bottom:24px;scroll-margin-top:96px;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.step:hover{box-shadow:var(--sh-2);border-color:#DCD5C7}
.step-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:54px;height:30px;padding:0 12px;
  border-radius:999px;background:var(--c-amber-soft);color:#8A5412;font-size:14px;font-weight:700;
  letter-spacing:.5px;font-variant-numeric:tabular-nums;
}
.step-head h3{font-size:22px}
.step-inner{display:grid;grid-template-columns:300px minmax(0,1fr);gap:26px;margin-top:20px;align-items:start}
.step-media{margin:0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:#EFEDE7}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.step-media figcaption{padding:10px 14px;font-size:13px;color:var(--c-text-2);background:#FBFAF7;border-top:1px solid var(--c-line)}
.step-body p{color:var(--c-text-2);font-size:16px;line-height:1.8}
.step-points{margin-top:16px;display:grid;gap:8px}
.step-points li{position:relative;padding-left:18px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.step-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-ink)}
.step-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:#F1F0EA;font-size:13px;color:var(--c-text-2)}
.pill b{color:var(--c-ink);font-weight:600}
.pill.amber{background:var(--c-amber-soft);color:#8A5412}
.pill.amber b{color:#7A4A0F}

/* 对照 */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.compare-col{padding:30px 28px}
.compare-col.bad{background:#F3F1EC}
.compare-col.good{background:#EDF3F0;border-left:1px dashed var(--c-line)}
.compare-col h3{font-size:19px;margin-bottom:6px}
.compare-col .sub{font-size:13px;color:var(--c-text-2);margin-bottom:18px}
.compare-col li{position:relative;padding-left:26px;font-size:15px;line-height:1.85;color:var(--c-text-2);margin-bottom:10px}
.compare-col.bad li::before{content:"−";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:50%;background:#E6E1D8;color:#8C7F6C;font-size:13px;display:grid;place-items:center;line-height:1}
.compare-col.good li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:50%;background:#D7E8E1;color:var(--c-up);font-size:12px;display:grid;place-items:center;line-height:1}
.compare-bar{margin-top:28px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.compare-bar .cb-title{font-size:15px;font-weight:600;margin-bottom:16px}
.cb-row{display:grid;grid-template-columns:120px 1fr 64px;align-items:center;gap:14px;margin-bottom:12px;font-size:14px;color:var(--c-text-2)}
.cb-track{height:10px;border-radius:999px;background:#EFEDE7;overflow:hidden}
.cb-fill{height:100%;border-radius:999px;background:var(--c-mist)}
.cb-fill.good{background:var(--c-amber)}
.cb-num{text-align:right;font-variant-numeric:tabular-nums;color:var(--c-ink);font-weight:600}

/* FAQ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:20px 24px;background:none;border:0;
  text-align:left;cursor:pointer;font-size:18px;font-weight:600;color:var(--c-text);
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:#FBFAF7;color:var(--c-ink)}
.faq-idx{flex:0 0 32px;width:32px;height:32px;border-radius:50%;background:var(--c-amber-soft);color:#8A5412;font-size:13px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.faq-icon{position:relative;width:18px;height:18px;margin-left:auto;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.faq-icon::before{top:8px;left:0;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 24px 22px 70px;font-size:16px;line-height:1.8;color:var(--c-text-2)}
.faq-item.is-open .faq-a{max-height:360px}

/* CTA */
.cta-band{
  background:var(--c-ink-900);color:#fff;border-radius:20px;padding:44px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start;
}
.cta-band h2{color:#fff}
.cta-band .cta-lead{margin-top:14px;color:rgba(255,255,255,.80);font-size:16px;line-height:1.8}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-amber);font-weight:700}
.cta-contact{margin-top:24px;padding-top:20px;border-top:1px dashed rgba(255,255,255,.22);font-size:14px;color:rgba(255,255,255,.78);line-height:2}
.cta-contact b{color:#fff}
.form-card{background:var(--c-surface);color:var(--c-text);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3)}
.form-card .fc-title{font-size:18px;font-weight:700;margin-bottom:4px}
.form-card .fc-sub{font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:6px}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#FCFBF8;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-ink);background:#fff;box-shadow:0 0 0 3px rgba(18,58,50,.12);
}
.field textarea{resize:vertical;min-height:104px}
.field.error input,.field.error select,.field.error textarea{border-color:var(--c-down)}
.field .err{display:none;font-size:13px;color:var(--c-down);margin-top:6px}
.field.error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);margin-bottom:18px}
.check-row input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-ink)}
.form-note{font-size:13px;color:var(--c-text-2);margin-top:12px;text-align:center}
.form-status{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-input);background:#E4F1EA;color:var(--c-up);font-size:14px}
.form-status.is-show{display:block}

/* 页脚 */
.site-footer{background:var(--c-ink-900);color:#C4D2CE;padding:56px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.site-footer .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(217,140,43,.5)}
.footer-brand strong{font-size:16px;font-weight:700}
.footer-about{font-size:14px;line-height:1.9;color:#9DB2AC}
.footer-title{font-size:14px;color:var(--c-amber);font-weight:700;margin-bottom:14px;letter-spacing:.4px}
.footer-links,.footer-contact{font-size:14px;line-height:2.1;color:#9DB2AC}
.footer-links a{transition:color .2s}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:#8FA6A0;
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--c-ink);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s,transform .25s,visibility .25s,background .25s;
  z-index:70;box-shadow:var(--sh-2);
}
.to-top:hover{background:var(--c-ink-900)}
.to-top.is-show{opacity:1;visibility:visible;transform:none}
.to-top svg{width:18px;height:18px}

/* 响应式 */
@media (max-width:1180px){
  .search-box{display:none}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:grid}
  .header-inner{gap:16px}
  .page-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .guide-layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--c-line)}
  .prep-grid{grid-template-columns:1fr 1fr}
  .compare{grid-template-columns:1fr}
  .compare-col.good{border-left:0;border-top:1px dashed var(--c-line)}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  .section{padding:52px 0}
  .container{padding:0 18px}
  .page-hero{padding:40px 0 44px}
  .page-hero .lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .stat{padding:20px 18px}
  .stat .num{font-size:34px}
  .prep-grid{grid-template-columns:1fr}
  .step{padding:20px}
  .step-inner{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:16px 18px;gap:10px}
  .faq-a p{padding:0 18px 20px 60px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cb-row{grid-template-columns:96px 1fr 52px;font-size:13px}
  .form-card{padding:22px}
  .cta-band{padding:24px}
}
@media (max-width:480px){
  .stat-strip{grid-template-columns:1fr}
  .stat{border-left:0}
  .stat + .stat{border-top:1px solid var(--c-line)}
  .brand strong{font-size:15px}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category4 */
:root{
  --c-ink:#123A32;
  --c-ink-900:#0C2A24;
  --c-ink-700:#1B5147;
  --c-amber:#D98C2B;
  --c-amber-dark:#B9741E;
  --c-amber-soft:#F6E7CE;
  --c-mist:#7C9A93;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-line:#E5DFD5;
  --c-text:#1C2321;
  --c-text-2:#5D6963;
  --c-up:#2E8B6E;
  --c-down:#C0552F;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(18,58,50,.06);
  --sh-2:0 10px 28px rgba(18,58,50,.12);
  --sh-3:0 18px 44px rgba(18,58,50,.16);
  --sp-section:88px;
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px;border-radius:4px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-ink-900);
  color:#D9E6E1;
  font-size:13px;
  line-height:1.6;
}
.topbar .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:38px;
}
.topbar-left{display:flex;align-items:center;gap:10px;}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--c-amber);flex:none;}
.topbar-right{display:flex;align-items:center;gap:18px;color:#A9C2BB;}
.topbar-right b{color:#fff;font-weight:600;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,58,50,.08);}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  flex:none;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-ink);
  display:grid;place-items:center;flex:none;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--c-ink-900);
  white-space:nowrap;
}
.brand-text small{
  display:block;font-size:11px;font-weight:500;color:var(--c-text-2);letter-spacing:.6px;line-height:1.2;
}

.main-nav{flex:1 1 auto;min-width:0;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  color:var(--c-text-2);
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.main-nav a:hover{color:var(--c-ink);background:rgba(18,58,50,.05);}
.main-nav li.is-active a{color:var(--c-ink);font-weight:700;}
.main-nav li.is-active a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-amber);
}

.header-tools{display:flex;align-items:center;gap:12px;flex:none;}
.search-box{
  position:relative;
  width:220px;
}
.search-box input{
  width:100%;height:38px;border:1px solid var(--c-line);border-radius:999px;
  background:#FBFAF7;
  padding:0 16px 0 38px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box input::placeholder{color:#9AA6A0;}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--c-ink);
  box-shadow:0 0 0 3px rgba(18,58,50,.10);
}
.search-box svg{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--c-mist);fill:none;stroke-width:2;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-amber);color:#2A1B06;box-shadow:0 6px 16px rgba(217,140,43,.28);}
.btn-primary:hover{background:var(--c-amber-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,140,43,.32);}
.btn-ink{background:var(--c-ink);color:#F2F7F5;}
.btn-ink:hover{background:var(--c-ink-700);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-ink);background:#fff;transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

.hamburger{
  display:none;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  cursor:pointer;
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 移动端抽屉 */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(12,42,36,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border-bottom:1px solid var(--c-line);
}
.drawer-head strong{font-size:15px;color:var(--c-ink-900);}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;
  display:grid;place-items:center;font-size:18px;line-height:1;color:var(--c-ink);
}
.drawer-nav{padding:8px 0;overflow-y:auto;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;height:52px;padding:0 20px;
  font-size:15px;color:var(--c-text);border-left:3px solid transparent;
}
.drawer-nav li.is-active a{border-left-color:var(--c-amber);color:var(--c-ink);font-weight:700;background:#FAF8F4;}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--c-line);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:18px 0 0;
  font-size:13px;color:var(--c-text-2);
}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li::after{content:"›";margin-left:8px;color:#B7C1BB;}
.crumb li:last-child::after{content:"";}
.crumb a:hover{color:var(--c-ink);text-decoration:underline;}
.crumb .current{color:var(--c-ink);font-weight:600;}

/* ---------- 页面头 ---------- */
.page-hero{
  padding:32px 0 56px;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:auto -10% -30% 55%;
  height:340px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(217,140,43,.10),transparent 68%);
  pointer-events:none;
}
.page-hero-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--c-amber-soft);color:#7A4E12;
  font-size:13px;font-weight:600;letter-spacing:.3px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);}
.page-hero h1{
  font-size:42px;line-height:1.28;font-weight:700;letter-spacing:-.5px;color:var(--c-ink-900);
}
.page-hero h1 em{
  font-style:normal;color:var(--c-amber-dark);
  background:linear-gradient(180deg,transparent 66%,rgba(217,140,43,.22) 66%);
}
.hero-lead{
  margin-top:18px;
  font-size:18px;line-height:1.85;color:var(--c-text-2);max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
}
.tag b{color:var(--c-ink);font-weight:700;}

.hero-side{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
}
.hero-side figure{margin:0 0 16px;border-radius:12px;overflow:hidden;aspect-ratio:16/10;}
.hero-side figure img{width:100%;height:100%;object-fit:cover;}
.hero-side h2{font-size:16px;font-weight:700;color:var(--c-ink-900);margin-bottom:14px;}
.mini-stat{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:11px 0;border-bottom:1px dashed var(--c-line);
  font-size:14px;color:var(--c-text-2);
}
.mini-stat:last-of-type{border-bottom:0;}
.mini-stat b{
  font-size:22px;font-weight:700;color:var(--c-ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.mini-stat b i{font-size:13px;font-style:normal;font-weight:500;color:var(--c-text-2);margin-left:2px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .bar{
  display:inline-block;width:4px;height:22px;border-radius:2px;background:var(--c-ink);
  margin-right:10px;vertical-align:-3px;
}
.section-head h2{
  display:inline;font-size:30px;line-height:1.4;font-weight:700;color:var(--c-ink-900);letter-spacing:-.4px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);}

/* ---------- FAQ 布局 ---------- */
.faq-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;
}
.faq-group + .faq-group{margin-top:48px;}
.group-title{
  display:flex;align-items:center;gap:12px;
  margin-bottom:18px;
}
.group-title span{
  display:grid;place-items:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--c-ink);color:#F0F6F4;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.group-title h3{
  font-size:22px;font-weight:600;color:var(--c-ink-900);
}
.group-title small{font-size:13px;color:var(--c-text-2);margin-left:auto;}

.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-item h3{margin:0;font-size:inherit;font-weight:inherit;}
.faq-trigger{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  transition:background-color .2s ease;
}
.faq-trigger:hover{background:#FBFAF7;}
.faq-trigger[aria-expanded="true"]{background:#FCFAF6;}
.faq-num{
  flex:none;
  display:grid;place-items:center;
  width:30px;height:30px;border-radius:50%;
  background:var(--c-amber-soft);color:#8A5714;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-q-text{
  flex:1 1 auto;min-width:0;
  font-size:18px;font-weight:600;line-height:1.6;color:var(--c-text);
}
.faq-icon{
  flex:none;position:relative;
  width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-trigger[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-panel{
  padding:0 24px 22px 70px;
  font-size:16px;line-height:1.85;color:var(--c-text-2);
  animation:fade .25s ease;
}
.faq-panel p + p{margin-top:.8em;}
.faq-panel strong{color:var(--c-ink);font-weight:600;}
@keyframes fade{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* 侧栏联系卡 */
.side-stack{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
}
.side-card.dark{
  background:var(--c-ink-900);
  border-color:transparent;
  color:#DCE9E5;
  background-image:linear-gradient(rgba(12,42,36,.92),rgba(12,42,36,.92)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.side-card.dark h3{color:#fff;}
.side-card.dark p{color:#B9CEC8;}
.side-card h3{font-size:18px;font-weight:700;color:var(--c-ink-900);margin-bottom:12px;}
.side-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);}
.side-list{margin:16px 0 20px;display:grid;gap:12px;}
.side-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--c-text-2);
}
.side-list li b{color:var(--c-ink);font-weight:700;}
.side-list .ico{
  flex:none;width:30px;height:30px;border-radius:9px;
  background:#F1F5F3;display:grid;place-items:center;
}
.side-list .ico svg{width:16px;height:16px;stroke:var(--c-ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.side-card.dark .ico{background:rgba(255,255,255,.12);}
.side-card.dark .ico svg{stroke:var(--c-amber);}
.side-card.dark .side-list li{color:#C6D8D3;}
.side-card.dark .side-list li b{color:#fff;}
.side-note{
  margin-top:14px;font-size:13px;color:var(--c-text-2);
  padding-top:14px;border-top:1px dashed var(--c-line);
}

/* ---------- 政策解读 ---------- */
.policy-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.policy-media{
  border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;
  box-shadow:var(--sh-2);
}
.policy-media img{width:100%;height:100%;object-fit:cover;}
.policy-list{display:grid;gap:16px;margin-top:26px;}
.policy-item{
  display:flex;gap:16px;
  padding:20px 22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-ink);
  border-radius:var(--r-card);
  transition:transform .2s ease,box-shadow .2s ease,border-left-color .2s ease;
}
.policy-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-left-color:var(--c-amber);}
.policy-item .no{
  flex:none;font-size:24px;font-weight:700;color:rgba(217,140,43,.55);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-1px;
}
.policy-item h3{font-size:19px;font-weight:600;color:var(--c-ink-900);margin-bottom:6px;}
.policy-item p{font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ---------- 时效对照 ---------- */
.sla-board{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.sla-head,.sla-row{
  display:grid;
  grid-template-columns:1.4fr 1.6fr .9fr .8fr;
  gap:16px;align-items:center;
  padding:16px 24px;
}
.sla-head{
  background:#F3F1EC;
  font-size:13px;font-weight:700;color:var(--c-ink);letter-spacing:.4px;
}
.sla-row{
  border-top:1px solid var(--c-line);
  font-size:14px;color:var(--c-text-2);
  transition:background-color .2s ease;
}
.sla-row:hover{background:#FCFBF8;}
.sla-row strong{color:var(--c-text);font-weight:600;}
.sla-time{
  font-size:15px;font-weight:700;color:var(--c-ink);
  font-variant-numeric:tabular-nums;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.8;
  white-space:nowrap;
}
.badge-up{background:rgba(46,139,110,.12);color:#1F6B53;}
.badge-warn{background:var(--c-amber-soft);color:#8A5714;}
.badge-mute{background:#EFEDE8;color:#6B756F;}

/* ---------- 转化条 ---------- */
.cta-strip{
  border-radius:var(--r-lg);
  background:var(--c-ink);
  color:#EAF3F0;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:linear-gradient(rgba(18,58,50,.94),rgba(18,58,50,.94)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.cta-strip h2{font-size:26px;font-weight:700;color:#fff;letter-spacing:-.3px;line-height:1.4;}
.cta-strip p{margin-top:10px;font-size:15px;line-height:1.8;color:#B9CEC8;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex:none;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-900);
  color:#B9CEC8;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border-radius:10px;width:34px;height:34px;display:grid;place-items:center;}
.footer-brand .brand-mark svg{width:20px;height:20px;}
.footer-brand strong{font-size:16px;color:#fff;letter-spacing:.2px;}
.footer-about{font-size:13.5px;line-height:1.9;color:#9DB6B0;max-width:340px;}
.footer-title{
  font-size:14px;font-weight:700;color:var(--c-amber);letter-spacing:.6px;margin-bottom:16px;
}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:#B9CEC8;transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact li{
  font-size:13.5px;line-height:1.7;color:#9DB6B0;
}
.footer-contact li + li{margin-top:10px;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8AA5A0;
}

/* 返回顶部 */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:var(--c-ink);color:#fff;border:0;cursor:pointer;
  display:grid;place-items:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,visibility .25s ease,transform .25s ease,background-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--c-ink-700);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp-section:72px;}
  .page-hero h1{font-size:36px;}
  .page-hero-grid{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
  .faq-layout{grid-template-columns:minmax(0,1fr) 280px;gap:28px;}
  .search-box{width:180px;}
  .main-nav a{padding:8px 10px;font-size:14.5px;}
}
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .main-nav,.search-box{display:none;}
  .hamburger{display:flex;}
  .header-inner{justify-content:space-between;}
  .page-hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-side{order:2;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .side-stack{position:static;}
  .policy-grid{grid-template-columns:1fr;gap:32px;}
  .sla-head,.sla-row{grid-template-columns:1.2fr 1.4fr .9fr;gap:12px;padding:14px 18px;}
  .sla-head span:nth-child(4),.sla-row span:nth-child(4){display:none;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:36px 32px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  .container{padding:0 18px;}
  .topbar-right{display:none;}
  .page-hero{padding:22px 0 40px;}
  .page-hero h1{font-size:29px;line-height:1.35;}
  .hero-lead{font-size:16px;}
  .section-head h2{font-size:23px;}
  .section-head .bar{height:18px;}
  .faq-trigger{padding:16px 18px;gap:12px;}
  .faq-q-text{font-size:16px;}
  .faq-panel{padding:0 18px 18px 60px;font-size:15px;}
  .faq-num{width:26px;height:26px;font-size:12px;}
  .cta-strip{padding:28px 22px;border-radius:var(--r-card);}
  .cta-strip h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .sla-head{display:none;}
  .sla-row{
    grid-template-columns:1fr auto;gap:8px 12px;padding:16px 18px;
  }
  .sla-row .sla-cell-2{grid-column:1 / -1;color:var(--c-text-2);}
  .sla-row .sla-cell-4{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-about{max-width:none;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .to-top{right:16px;bottom:16px;}
  .btn{height:44px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:25px;}
  .eyebrow{font-size:12px;padding:5px 12px;}
  .tag{font-size:12px;padding:5px 11px;}
  .policy-item{padding:16px;gap:12px;}
  .policy-item .no{font-size:20px;}
  .hero-side{padding:18px;}
}