/* roulang page: index */
:root{
  --brand:#E1543A;
  --brand-strong:#B93C26;
  --brand-soft:#FDEDE7;
  --accent:#16635A;
  --accent-soft:#E4EFEC;
  --ink:#221F1C;
  --ink-2:#5C5651;
  --ink-3:#8B837B;
  --bg:#FBF8F4;
  --bg-card:#FFFFFF;
  --bg-soft:#F5F0E9;
  --dark:#1E1B18;
  --dark-text:#EFE8DE;
  --dark-soft:#A9A096;
  --line:#EDE6DD;
  --line-strong:#DCD2C5;
  --success:#2E7D5B;
  --warn:#D98324;
  --error:#C0392B;
  --r-card:12px;
  --r-btn:999px;
  --r-input:10px;
  --r-badge:8px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(34,31,28,.06),0 8px 24px rgba(34,31,28,.06);
  --sh-2:0 12px 32px rgba(34,31,28,.14);
  --sh-nav:0 2px 12px rgba(34,31,28,.08);
  --w:1200px;
  --sec:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  text-align:left;
  -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:15px;color:var(--ink);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section + .section{border-top:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-title{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.2px;}
.sec-desc{color:var(--ink-2);font-size:15px;max-width:620px;margin-top:10px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;line-height:1;
  color:var(--brand);background:var(--brand-soft);
  padding:8px 12px;border-radius:var(--r-badge);
}
.eyebrow-accent{color:var(--accent);background:var(--accent-soft);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-outline{background:transparent;color:var(--accent);border:1.5px solid var(--accent);}
.btn-outline:hover{background:var(--accent-soft);}
.btn-light{background:#fff;color:var(--dark);}
.btn-light:hover{background:#F2EAE0;}
.btn-block{width:100%;}
.btn-lg{height:52px;font-size:16px;padding:0 32px;}
.ghost-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink-2);font-size:14px;font-weight:500;
  transition:color .18s ease;
}
.ghost-link .arw{transition:transform .18s ease;}
.ghost-link:hover{color:var(--brand);}
.ghost-link:hover .arw{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);}
.site-header.is-stuck{box-shadow:var(--sh-nav);}
.nav{max-width:var(--w);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:32px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:32px;height:32px;flex-shrink:0;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:22px 0;transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:230px;height:40px;padding:0 14px;
  background:var(--bg-soft);border:1px solid transparent;border-radius:var(--r-btn);
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.search-box svg{flex-shrink:0;color:var(--ink-3);}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(225,84,58,.14);}
.nav-cta{height:40px;padding:0 22px;font-size:14px;}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer;color:var(--brand);
}
.burger svg{width:24px;height:24px;}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,86vw);background:#fff;z-index:120;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px 20px 24px;
  box-shadow:-8px 0 32px rgba(34,31,28,.14);
}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;
  color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;font-size:16px;font-weight:500;
  color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);}
.drawer .search-box{width:100%;margin-top:16px;}
.drawer-foot{margin-top:auto;padding-top:20px;}
.scrim{
  position:fixed;inset:0;background:rgba(30,27,24,.42);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.scrim.open{opacity:1;pointer-events:auto;}

/* ---------- hero ---------- */
.hero{
  padding:64px 0 72px;
  background:
    linear-gradient(180deg,rgba(251,248,244,.94) 0%,rgba(253,240,233,.9) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:56px;align-items:center;}
.hero-title{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:.2px;
  margin:18px 0 16px;color:var(--ink);
}
.hero-title em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  padding-top:24px;border-top:1px solid var(--line-strong);
}
.stat-num{
  font-size:26px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-num small{font-size:13px;font-weight:500;color:var(--ink-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:4px;}
.hero-visual{position:relative;}
.hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);box-shadow:var(--sh-1);
}
.float-card{
  position:absolute;left:-18px;bottom:-22px;width:250px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.float-card .tag{
  display:inline-block;font-size:12px;font-weight:500;line-height:1;
  color:var(--accent);background:var(--accent-soft);
  padding:6px 9px;border-radius:var(--r-badge);margin-bottom:8px;
}
.float-card p{font-size:13px;line-height:1.7;color:var(--ink-2);}

/* ---------- value strip ---------- */
.value-strip{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:36px 0;}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.value-item{display:flex;align-items:flex-start;gap:12px;}
.value-icon{
  width:38px;height:38px;flex-shrink:0;border-radius:10px;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.value-item h3{font-size:15px;font-weight:600;line-height:1.5;}
.value-item p{font-size:13px;line-height:1.6;color:var(--ink-2);margin-top:2px;}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.ladder-item{
  position:relative;background:var(--bg-card);border:1px solid var(--line);
  border-left:4px solid var(--brand);border-radius:var(--r-card);
  padding:26px 26px 28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.ladder-item:nth-child(2){border-left-color:var(--accent);}
.ladder-item:nth-child(3){border-left-color:var(--warn);}
.ladder-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.ladder-num{
  width:34px;height:34px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.ladder-item:nth-child(2) .ladder-num{background:var(--accent-soft);color:var(--accent);}
.ladder-item:nth-child(3) .ladder-num{background:#FBF0DF;color:var(--warn);}
.ladder-name{font-size:20px;font-weight:700;line-height:1.4;}
.ladder-threshold{font-size:13px;color:var(--ink-3);margin-top:4px;}
.ladder-list{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);}
.ladder-list li{
  position:relative;padding-left:18px;font-size:14.5px;line-height:1.7;
  color:var(--ink-2);margin-bottom:8px;
}
.ladder-list li:last-child{margin-bottom:0;}
.ladder-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--brand);opacity:.75;
}
.ladder-item:nth-child(2) .ladder-list li::before{background:var(--accent);}
.ladder-item:nth-child(3) .ladder-list li::before{background:var(--warn);}

/* ---------- compare ---------- */
.compare-scroll{overflow-x:auto;padding-bottom:6px;}
.compare-table{
  width:100%;min-width:720px;border-collapse:collapse;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.compare-table th,.compare-table td{
  padding:16px 18px;text-align:center;font-size:15px;
  border-bottom:1px solid var(--line);
}
.compare-table thead th{
  background:var(--bg-soft);font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line-strong);
}
.compare-table thead th:first-child,
.compare-table tbody th{text-align:left;font-weight:500;color:var(--ink-2);font-size:14.5px;}
.compare-table tbody th{background:#fff;}
.compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:#FCF7F2;}
.compare-table .col-best{background:var(--brand-soft);}
.compare-table thead th.col-best{background:#FBE3DB;}
.compare-table tbody tr:last-child td,.compare-table tbody tr:last-child th{border-bottom:0;}
.price-cell{font-variant-numeric:tabular-nums;}
.price-main{font-size:24px;font-weight:700;color:var(--brand);}
.price-unit{font-size:13px;color:var(--ink-3);margin-left:2px;}
.plan-name{font-size:17px;font-weight:700;color:var(--ink);}
.plan-badge{
  display:inline-block;margin-left:8px;font-size:12px;font-weight:500;line-height:1;
  color:var(--brand);background:#fff;border:1px solid var(--brand);
  padding:4px 8px;border-radius:var(--r-badge);vertical-align:middle;
}
.compare-foot td{border-bottom:0;padding:18px;}
.compare-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;}
.scroll-hint{display:none;font-size:12.5px;color:var(--ink-3);margin-bottom:8px;}

/* ---------- news ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-card-link{display:flex;flex-direction:column;width:100%;height:100%;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-block;font-size:12px;font-weight:500;line-height:1;
  padding:6px 9px;border-radius:var(--r-badge);align-self:flex-start;
}
.badge-brand{color:var(--brand);background:var(--brand-soft);}
.badge-accent{color:var(--accent);background:var(--accent-soft);}
.news-title{
  font-size:18px;line-height:1.5;font-weight:600;margin-top:12px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-title{color:var(--brand);}
.news-excerpt{
  font-size:14px;line-height:1.75;color:var(--ink-2);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.news-meta .ghost-link{font-size:13px;}
.news-empty{
  grid-column:1/-1;min-height:200px;border:1px dashed var(--line-strong);
  background:var(--bg-soft);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:32px;text-align:center;
}
.news-empty svg{color:var(--ink-3);}
.news-empty p{font-size:14px;color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:56px;padding:16px 24px;
  font-size:16px;font-weight:600;color:var(--ink);transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:20px;font-weight:500;color:var(--brand);line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--brand);}
.faq-answer{padding:0 24px 18px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- dark cta ---------- */
.cta-dark{background:var(--dark);color:var(--dark-text);padding:64px 0;}
.cta-dark-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;}
.cta-dark h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;}
.cta-dark .cta-sub{font-size:14.5px;color:var(--dark-soft);margin-top:10px;max-width:520px;}
.countdown{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap;}
.cd-block{
  background:#fff;color:var(--dark);border-radius:10px;
  min-width:74px;padding:10px 12px;text-align:center;
  font-variant-numeric:tabular-nums;
  animation:cdFade .5s ease both;
}
.cd-num{font-size:24px;font-weight:700;line-height:1.2;color:var(--brand);}
.cd-label{font-size:12px;color:var(--ink-3);margin-top:2px;}
@keyframes cdFade{from{opacity:.35;}to{opacity:1;}}
.cta-dark-right{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-dark-right .hint{font-size:13px;color:var(--dark-soft);line-height:1.7;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-points{display:flex;flex-direction:column;gap:22px;margin-top:26px;}
.contact-point{display:flex;gap:14px;align-items:flex-start;}
.cp-num{
  width:30px;height:30px;flex-shrink:0;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.contact-point h3{font-size:16px;font-weight:600;line-height:1.5;}
.contact-point p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-top:2px;}
.form-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-success{
  display:none;background:rgba(46,125,91,.1);border:1px solid rgba(46,125,91,.28);
  color:var(--success);font-size:14px;line-height:1.7;
  padding:12px 16px;border-radius:var(--r-input);margin-bottom:20px;
}
.form-success.show{display:block;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field label .req{color:var(--brand);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-input);
  background:#fff;padding:0 14px;height:48px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(225,84,58,.14);
}
.form-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-soft);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:14px;max-width:300px;}
.footer-domain{
  display:inline-block;margin-top:14px;font-size:13px;color:var(--dark-soft);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-badge);padding:5px 10px;
}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--dark-soft);transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14px;line-height:1.9;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--dark-soft);
}

/* ---------- responsive ---------- */
@media (max-width:1099px){
  .nav-links{gap:20px;}
  .search-box{width:180px;}
  .hero-grid{gap:40px;}
  .news-list{grid-template-columns:repeat(2,1fr);}
  .value-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
}
@media (max-width:900px){
  :root{--sec:56px;}
  .nav-links,.nav-actions .search-box,.nav-actions .nav-cta{display:none;}
  .burger{display:flex;}
  .nav{gap:16px;}
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-title{font-size:34px;}
  .hero-sub{font-size:16px;}
  .float-card{left:auto;right:12px;bottom:-18px;width:220px;}
  .ladder{grid-template-columns:1fr;align-items:stretch;}
  .cta-dark-grid{grid-template-columns:1fr;gap:28px;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .scroll-hint{display:block;}
  .sec-title{font-size:26px;}
}
@media (max-width:767px){
  :root{--sec:44px;}
  .wrap{padding:0 16px;}
  .nav{padding:0 16px;height:64px;}
  .hero-title{font-size:28px;line-height:1.35;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px 12px;}
  .hero-stats .stat:last-child{grid-column:1/-1;}
  .news-list{grid-template-columns:1fr;}
  .value-grid{grid-template-columns:1fr 1fr;}
  .cta-dark h2{font-size:24px;}
  .cd-block{min-width:64px;padding:8px 10px;}
  .cd-num{font-size:20px;}
  .form-card{padding:22px;}
  .sec-head{margin-bottom:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .compare-table{min-width:640px;}
  .section{padding:44px 0;}
}
@media (max-width:520px){
  .wrap{padding:0 12px;}
  .hero-title{font-size:26px;}
  .value-grid{grid-template-columns:1fr;}
  .news-body{padding:16px;}
  .form-card{padding:16px;}
  .faq-item summary{padding:14px 16px;font-size:15px;}
  .faq-answer{padding:0 16px 16px;}
  .float-card{display:none;}
}

/* roulang page: article */
:root{
  --brand:#E1543A;
  --brand-strong:#B93C26;
  --brand-soft:#FDEDE7;
  --accent:#16635A;
  --accent-soft:#E4EFEC;
  --ink:#221F1C;
  --ink-2:#5C5651;
  --ink-3:#8B837B;
  --bg:#FBF8F4;
  --bg-card:#FFFFFF;
  --bg-soft:#F5F0E9;
  --dark:#1E1B18;
  --dark-text:#EFE8DE;
  --dark-mute:#A9A096;
  --line:#EDE6DD;
  --line-strong:#DCD2C5;
  --success:#2E7D5B;
  --warn:#D98324;
  --error:#C0392B;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --shadow:0 1px 2px rgba(34,31,28,.06), 0 8px 24px rgba(34,31,28,.06);
  --shadow-hover:0 12px 32px rgba(34,31,28,.14);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 2px 12px rgba(34,31,28,.08);}
.nav{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:68px;
  display:flex;
  align-items:center;
  gap:26px;
}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{width:30px;height:30px;flex:none;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .18s ease;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:38px;width:220px;padding:0 14px;
  background:var(--bg-soft);
  border:1px solid transparent;
  border-radius:999px;
  color:var(--ink-3);
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.search-box input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(225,84,58,.14);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;
  border-radius:10px;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;height:40px;padding:0 20px;}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:0 10px 22px rgba(185,60,38,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{
  background:transparent;color:var(--accent);
  border:1.5px solid var(--accent);
  height:44px;padding:0 22px;
}
.btn-secondary:hover{background:var(--accent-soft);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
  background:none;padding:0;
}
.btn-ghost svg{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost:hover svg{transform:translateX(3px);}
.burger{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  color:var(--brand);
  border-radius:10px;
}
.burger:hover{background:var(--brand-soft);}
.burger svg{width:24px;height:24px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(30,27,24,.45);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(84vw,340px);
  background:#fff;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  padding:20px;
  box-shadow:-12px 0 40px rgba(34,31,28,.18);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-head span{font-size:15px;font-weight:600;color:var(--ink-2);}
.drawer-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);border-radius:8px;}
.drawer-close:hover{background:var(--bg-soft);color:var(--brand);}
.drawer-links{display:flex;flex-direction:column;padding:8px 0;flex:1;}
.drawer-links a{
  height:56px;display:flex;align-items:center;
  font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--brand);}
.drawer-foot{padding-top:16px;}
.drawer-foot .btn{width:100%;height:48px;}

/* ---------- breadcrumb ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--ink-3);
  padding:22px 0 0;
}
.crumbs a{color:var(--ink-3);transition:color .18s ease;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink-2);max-width:640px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:36px;
  align-items:start;
  padding:24px 0 72px;
}
.panel{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.article-main{padding:36px 40px 40px;min-width:0;}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  color:var(--brand);background:var(--brand-soft);
  padding:7px 12px;border-radius:var(--radius-sm);
}
.article-title{
  font-size:34px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.2px;
  margin:16px 0 18px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-3);
}
.article-meta .bar{width:1px;height:12px;background:var(--line-strong);}
.rule{height:1px;background:var(--line);margin:24px 0;}

.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:600;
  margin:2em 0 .7em;
  scroll-margin-top:92px;
}
.article-body h3{
  font-size:20px;line-height:1.45;font-weight:600;
  margin:1.4em 0 .5em;
  color:var(--ink);
  scroll-margin-top:92px;
}
.article-body h4{font-size:17px;font-weight:600;margin:1.2em 0 .4em;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{
  margin:1.5em 0;
  border-left:3px solid var(--brand);
  background:var(--bg-soft);
  padding:16px 20px;
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius);
  margin:24px auto;
  height:auto;
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;
}
.article-body a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--brand-strong);}
.article-body strong{font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
}
.article-body th{background:var(--bg-soft);font-weight:600;text-align:left;}
.article-body th,.article-body td{
  border:1px solid var(--line-strong);
  padding:10px 14px;
  vertical-align:top;
}
.article-body code{
  background:var(--bg-soft);
  padding:2px 6px;border-radius:6px;font-size:14px;
}

.empty-state{
  border:1px dashed var(--line-strong);
  background:var(--bg-soft);
  border-radius:var(--radius);
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:32px 24px;
  color:var(--ink-2);
}
.empty-state svg{color:var(--ink-3);}
.empty-state p{font-size:15px;}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:32px;}
.tag-row .tag-label{font-size:13px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;
  color:var(--accent);background:var(--accent-soft);
  padding:6px 12px;border-radius:var(--radius-sm);
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--accent);color:#fff;}

/* prev / next */
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  margin-top:28px;
}
.pager-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-card);
  padding:18px 20px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.pager-card .dir{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:6px;}
.pager-card .t{font-size:16px;font-weight:600;margin-top:8px;line-height:1.5;}
.pager-card:hover .t{color:var(--brand);}
.pager-card.next{text-align:right;}
.pager-card.next .dir{justify-content:flex-end;}

/* related */
.related{margin-top:44px;}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px;}
.related-head h2{font-size:22px;font-weight:600;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.rel-cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-cover img{transform:scale(1.03);}
.rel-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-body .badge{
  align-self:flex-start;
  font-size:12px;font-weight:500;line-height:1;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 10px;border-radius:var(--radius-sm);
}
.rel-body h3{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover h3{color:var(--brand);}
.rel-body p{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:6px;padding-top:4px;}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* ---------- aside ---------- */
.aside{
  position:sticky;top:88px;
  display:flex;flex-direction:column;gap:24px;
  min-width:0;
}
.side-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:22px;
}
.side-title{
  font-size:14px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:8px;
  padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.side-title::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;
  font-size:14px;line-height:1.6;
  color:var(--ink-2);
  padding:8px 10px 8px 12px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc-list a.lv3{padding-left:26px;font-size:13.5px;color:var(--ink-3);}
.toc-list a:hover{color:var(--brand);background:var(--brand-soft);}
.toc-list a.current{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600;}
.toc-empty{font-size:13.5px;color:var(--ink-3);line-height:1.7;}

.side-dark{
  background:var(--dark);
  border-radius:var(--radius-lg);
  padding:24px;
  color:var(--dark-text);
  border:1px solid #2A2622;
}
.side-dark .kicker{
  display:inline-block;
  font-size:12px;font-weight:500;line-height:1;
  color:#FFD9CE;background:rgba(225,84,58,.22);
  padding:6px 10px;border-radius:var(--radius-sm);
  margin-bottom:14px;
}
.side-dark h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.side-dark p{font-size:13.5px;line-height:1.75;color:var(--dark-mute);margin-bottom:16px;}
.side-dark .btn{
  width:100%;height:44px;
  background:#fff;color:var(--dark);font-size:15px;
}
.side-dark .btn:hover{background:#F2EAE0;transform:translateY(-1px);}
.side-dark .time-row{
  display:flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--dark-mute);
  margin-top:14px;padding-top:14px;
  border-top:1px solid rgba(239,232,222,.14);
}
.side-dark .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;}

.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  font-size:13px;font-weight:500;
  color:var(--ink-2);
  background:var(--bg-soft);
  padding:6px 12px;border-radius:var(--radius-sm);
  transition:background .18s ease,color .18s ease;
}
.tag-cloud a:hover{background:var(--brand-soft);color:var(--brand);}

/* ---------- cta strip ---------- */
.cta-section{padding:0 0 72px;}
.cta-strip{
  background:var(--brand-soft);
  border:1px solid #F6D9CF;
  border-radius:var(--radius-lg);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:24px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.cta-strip p{font-size:15px;color:var(--ink-2);max-width:640px;line-height:1.8;}
.cta-strip .btn-primary{height:48px;padding:0 26px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);
  color:var(--dark-text);
  padding:64px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{
  font-size:14px;line-height:1.8;color:var(--dark-mute);
  max-width:320px;margin-bottom:14px;
}
.footer-domain{
  display:inline-block;
  font-size:13px;color:var(--dark-mute);
  border:1px solid rgba(239,232,222,.2);
  border-radius:var(--radius-sm);
  padding:4px 10px;
}
.footer-col h4{
  font-size:14px;font-weight:600;color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col p{font-size:14px;line-height:1.8;color:var(--dark-mute);margin-bottom:10px;}
.footer-col a{
  font-size:14px;color:var(--dark-mute);
  transition:color .18s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(239,232,222,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--dark-mute);line-height:1.7;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px;}
  .article-main{padding:32px;}
}
@media (max-width:1023px){
  .nav-links{gap:20px;}
  .search-box{width:180px;}
  .article-layout{grid-template-columns:1fr;gap:0;padding-bottom:56px;}
  .aside{position:static;margin-top:28px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .nav{height:60px;padding:0 16px;gap:12px;}
  .nav-links,.search-box{display:none;}
  .burger{display:flex;}
  .nav-cta{display:none;}
  .wrap{padding:0 16px;}
  .crumbs{padding-top:16px;}
  .crumbs .current{max-width:100%;}
  .article-layout{padding:16px 0 44px;}
  .article-main{padding:22px 20px 26px;}
  .article-title{font-size:26px;line-height:1.4;margin:14px 0 14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:19px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;font-size:14px;}
  .pager{grid-template-columns:1fr;}
  .pager-card.next{text-align:left;}
  .pager-card.next .dir{justify-content:flex-start;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-strip{padding:26px 22px;gap:20px;}
  .cta-strip h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:44px 0 28px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:32px;}
  .aside{gap:18px;}
}
@media (max-width:480px){
  .wrap{padding:0 12px;}
  .nav{padding:0 12px;}
  .article-main{padding:18px 16px 22px;}
  .side-card{padding:18px;}
  .side-dark{padding:20px;}
  .tag{padding:5px 10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category1 */
:root{
  --brand:#E1543A;
  --brand-strong:#B93C26;
  --brand-soft:#FDEDE7;
  --accent:#16635A;
  --accent-soft:#E4EFEC;
  --ink:#221F1C;
  --ink-2:#5C5651;
  --ink-3:#8B837B;
  --bg:#FBF8F4;
  --card:#FFFFFF;
  --bg-soft:#F5F0E9;
  --dark:#1E1B18;
  --dark-text:#EFE8DE;
  --dark-mute:#A9A096;
  --line:#EDE6DD;
  --line-strong:#DCD2C5;
  --ok:#2E7D5B;
  --warn:#D98324;
  --err:#C0392B;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(34,31,28,.06),0 8px 24px rgba(34,31,28,.06);
  --sh-2:0 12px 32px rgba(34,31,28,.14);
  --sh-nav:0 2px 12px rgba(34,31,28,.08);
  --max:1200px;
  --sp:80px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.2px;}
p{margin:0 0 1.15em;}
ul,ol{margin:0 0 1.15em;padding-left:1.4em;}
li{margin-bottom:.5em;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(185,60,38,.18);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:0 8px 20px rgba(185,60,38,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:transparent;border-color:var(--accent);color:var(--accent);border-width:1.5px;}
.btn-secondary:hover{background:var(--accent-soft);}
.btn-ghost{background:transparent;border:none;color:var(--ink-2);padding:0 4px;height:auto;font-weight:500;}
.btn-ghost .arrow{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#F2EAE0;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-nav);}
.nav{
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{display:flex;align-items:center;gap:9px;flex:0 0 auto;}
.logo-mark{width:30px;height:30px;flex:0 0 auto;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-links a{
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:8px 14px;
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--ink);background:var(--bg-soft);}
.nav-links a.active{color:var(--brand-strong);background:var(--brand-soft);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:236px;
  height:40px;
  padding:0 14px;
  background:var(--bg-soft);
  border:1px solid transparent;
  border-radius:999px;
  color:var(--ink-3);
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box input{
  border:none;
  background:transparent;
  width:100%;
  height:100%;
  font-size:14px;
  color:var(--ink);
  outline:none;
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(225,84,58,.14);
  color:var(--accent);
}
.nav-cta{height:40px;padding:0 22px;font-size:14px;}
.burger{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  background:transparent;border:none;border-radius:8px;color:var(--brand);
}
.burger svg{width:24px;height:24px;}
.burger:hover{background:var(--brand-soft);}

/* ---------- 抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(30,27,24,.42);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:90;
}
.drawer-overlay.show{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:310px;max-width:86vw;
  background:#fff;z-index:95;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  padding:18px 20px 24px;
  box-shadow:-8px 0 32px rgba(34,31,28,.16);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:36px;height:36px;border:none;background:var(--bg-soft);border-radius:8px;
  font-size:20px;line-height:1;color:var(--ink-2);
}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand-strong);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;flex:1 1 auto;}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:56px;
  font-size:16px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand-strong);font-weight:600;}
.drawer-search{width:100%;height:44px;margin:18px 0 14px;}
.drawer-cta{width:100%;}

/* ---------- 页头 ---------- */
.page-hero{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  padding:56px 0 44px;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:center;
}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
  margin-bottom:18px;
}
.crumbs a{color:var(--ink-3);transition:color .2s ease;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink-2);}
.page-hero h1{
  font-size:44px;
  line-height:1.22;
  font-weight:700;
  margin-bottom:14px;
}
.page-hero h1 .dot{color:var(--brand);}
.page-hero .lede{
  font-size:17px;
  color:var(--ink-2);
  margin:0 0 24px;
  max-width:34em;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  padding:8px 12px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand-strong);
}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.hero-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  border:1px solid var(--line);
  aspect-ratio:4/3;
  position:relative;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(251,248,244,0) 55%,rgba(30,27,24,.18) 100%);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp) 0;}
.section + .section{border-top:1px solid var(--line);}
.section-soft{background:var(--bg-soft);}
.section-head{margin-bottom:40px;max-width:44em;}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);
  margin-bottom:12px;
  padding-left:12px;
  position:relative;
}
.eyebrow::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:14px;border-radius:2px;background:var(--brand);
}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:12px;}
.section-head p{color:var(--ink-2);margin:0;font-size:16.5px;}

/* ---------- 图文说明 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.intro-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
}
.intro-figure img{width:100%;height:100%;object-fit:cover;}
.intro-copy h2{font-size:32px;line-height:1.3;margin-bottom:18px;}
.intro-copy p{color:var(--ink-2);}
.check-list{list-style:none;padding:0;margin:24px 0 0;}
.check-list li{
  position:relative;
  padding:14px 0 14px 40px;
  border-top:1px solid var(--line);
  margin:0;
  font-size:16px;
  color:var(--ink);
}
.check-list li:last-child{border-bottom:1px solid var(--line);}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:22px;height:22px;border-radius:50%;
  background:var(--accent-soft);
  border:1.5px solid var(--accent);
}
.check-list li::after{
  content:"";
  position:absolute;left:6px;top:calc(50% - 1px);
  width:9px;height:5px;
  border-left:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:translateY(-50%) rotate(-45deg);
}
.check-list strong{font-weight:600;color:var(--ink);}
.check-list span{display:block;font-size:14.5px;color:var(--ink-2);line-height:1.7;margin-top:2px;}

/* ---------- 步骤流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:8px;
}
.step{position:relative;padding-right:16px;}
.step::after{
  content:"";
  position:absolute;top:18px;left:52px;right:0;
  height:1px;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 6px,transparent 6px 13px);
}
.step:last-child::after{display:none;}
.step-dot{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;
  border:1.5px solid var(--brand);
  color:var(--brand-strong);
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
  position:relative;z-index:1;
}
.step h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.75;color:var(--ink-2);margin:0;}

/* ---------- 深色状态面板 ---------- */
.status-panel{
  background:var(--dark);
  color:var(--dark-text);
  border-radius:var(--r-lg);
  padding:40px;
}
.status-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:28px;flex-wrap:wrap;
}
.status-head h2{font-size:28px;line-height:1.3;color:#fff;margin-bottom:8px;}
.status-head p{color:var(--dark-mute);margin:0;font-size:15px;max-width:40em;}
.status-head .mini-cta{
  height:40px;padding:0 22px;font-size:14px;
  border-radius:var(--r-btn);
  background:transparent;border:1.5px solid rgba(239,232,222,.4);
  color:var(--dark-text);font-weight:600;
  display:inline-flex;align-items:center;
  transition:background-color .2s ease,border-color .2s ease;
}
.status-head .mini-cta:hover{background:rgba(239,232,222,.12);border-color:rgba(239,232,222,.7);}
.status-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.stat{
  background:rgba(239,232,222,.05);
  border:1px solid rgba(239,232,222,.14);
  border-radius:var(--r-card);
  padding:20px;
}
.stat-num{
  font-size:32px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;
  line-height:1.15;
  display:flex;align-items:baseline;gap:4px;
}
.stat-num em{font-style:normal;font-size:14px;font-weight:500;color:var(--dark-mute);}
.stat-label{font-size:13.5px;color:var(--dark-mute);margin-top:6px;line-height:1.6;}

/* ---------- 注意事项 ---------- */
.notice-band{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:64px 0;
}
.notice-block{
  border-left:4px solid var(--accent);
  padding:6px 0 6px 28px;
  max-width:52em;
}
.notice-block h2{font-size:28px;line-height:1.3;margin-bottom:20px;}
.notice-block h3{font-size:18px;line-height:1.5;margin:26px 0 8px;color:var(--ink);}
.notice-block h3:first-of-type{margin-top:0;}
.notice-block p{color:var(--ink-2);margin-bottom:0;font-size:16px;line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;}
.faq-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  min-height:60px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 24px;
  background:transparent;border:none;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease,background-color .2s ease;
}
.faq-q:hover{color:var(--brand-strong);background:#FCFAF7;}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  color:var(--brand);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:3px;right:3px;top:10px;height:2px;}
.faq-icon::after{top:3px;bottom:3px;left:10px;width:2px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .28s ease;
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{
  padding:0 24px 18px;
  margin:0;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.85;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-soft);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  border:1px solid #F6DCD2;
}
.cta-band h2{font-size:28px;line-height:1.3;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--ink-2);font-size:15.5px;}
.cta-band .btn-primary{height:52px;padding:0 34px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:var(--dark-text);
  padding:64px 0 32px;
  margin-top:var(--sp);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{
  font-size:14px;
  color:var(--dark-mute);
  line-height:1.8;
  margin:0 0 14px;
  max-width:26em;
}
.footer-domain{
  display:inline-block;
  font-size:12.5px;
  color:var(--dark-mute);
  letter-spacing:.06em;
  padding:5px 10px;
  border:1px solid rgba(239,232,222,.18);
  border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin:0 0 10px;}
.footer-col a{
  font-size:14px;color:var(--dark-mute);
  transition:color .2s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14px;color:var(--dark-mute);margin:0 0 10px;line-height:1.75;}
.footer-bottom{
  border-top:1px solid rgba(239,232,222,.14);
  padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--dark-mute);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp:64px;}
  .page-hero-inner{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
  .page-hero h1{font-size:38px;}
  .search-box{width:200px;}
  .nav-cta{padding:0 18px;}
}

@media (max-width:1023px){
  :root{--sp:56px;}
  .nav-links a{padding:8px 10px;font-size:14.5px;}
  .search-box{display:none;}
  .page-hero-inner{grid-template-columns:1fr;}
  .hero-figure{display:none;}
  .page-hero h1{font-size:34px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px;}
  .step:nth-child(2)::after{display:none;}
  .status-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .status-panel{padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:767px){
  :root{--sp:44px;}
  body{font-size:16px;line-height:1.8;}
  .wrap{padding:0 16px;}
  .nav{padding:0 16px;height:62px;gap:12px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:26px;height:26px;}
  .nav-links,.nav-actions .nav-cta{display:none;}
  .burger{display:inline-flex;}
  .page-hero{padding:36px 0 32px;}
  .page-hero h1{font-size:28px;line-height:1.35;}
  .page-hero .lede{font-size:15.5px;}
  .section-head h2{font-size:24px;}
  .intro-copy h2{font-size:24px;}
  .section-head{margin-bottom:28px;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding:0 0 26px 30px;}
  .step::after{
    top:40px;left:17px;right:auto;bottom:0;width:1px;height:auto;
    background-image:repeating-linear-gradient(180deg,var(--line-strong) 0 6px,transparent 6px 13px);
  }
  .step-dot{position:absolute;left:0;top:0;width:34px;height:34px;margin:0;font-size:14px;}
  .step h3{margin-top:2px;}
  .step:last-child{padding-bottom:0;}
  .status-panel{padding:24px;border-radius:var(--r-card);}
  .status-head h2{font-size:22px;}
  .status-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .stat{padding:16px;}
  .stat-num{font-size:26px;}
  .notice-band{padding:44px 0;}
  .notice-block{padding-left:18px;}
  .notice-block h2{font-size:22px;}
  .faq-q{padding:14px 18px;font-size:15.5px;min-height:56px;}
  .faq-a p{padding:0 18px 16px;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start;gap:20px;}
  .cta-band h2{font-size:22px;}
  .cta-band .btn-primary{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .site-footer{padding:44px 0 26px;margin-top:var(--sp);}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (max-width:480px){
  .wrap{padding:0 12px;}
  .nav{padding:0 12px;}
  .status-grid{grid-template-columns:1fr;}
  .hero-badges .badge{font-size:11.5px;padding:7px 10px;}
  .check-list li{padding-left:34px;font-size:15.5px;}
}

/* roulang page: category2 */
:root{
  --brand:#E1543A;
  --brand-strong:#B93C26;
  --brand-soft:#FDEDE7;
  --accent:#16635A;
  --accent-soft:#E4EFEC;
  --ink:#221F1C;
  --ink-2:#5C5651;
  --ink-3:#8B837B;
  --bg:#FBF8F4;
  --bg-card:#FFFFFF;
  --bg-soft:#F5F0E9;
  --dark:#1E1B18;
  --dark-text:#EFE8DE;
  --dark-muted:#A9A096;
  --line:#EDE6DD;
  --line-strong:#DCD2C5;
  --success:#2E7D5B;
  --warn:#D98324;
  --error:#C0392B;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-badge:8px;
  --sh-1:0 1px 2px rgba(34,31,28,.06),0 8px 24px rgba(34,31,28,.06);
  --sh-2:0 12px 32px rgba(34,31,28,.14);
  --sh-nav:0 2px 12px rgba(34,31,28,.08);
  --section-y:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.5px;}
h2{font-size:32px;line-height:1.3;font-weight:600;letter-spacing:-.3px;}
h3{font-size:22px;line-height:1.4;font-weight:600;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-nav);}
.nav{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;}
.logo-mark{width:30px;height:30px;flex-shrink:0;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-right:auto;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:22px 0;transition:color .16s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:12px;
  height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  background:var(--bg-soft);
  border:1px solid transparent;border-radius:999px;
  color:var(--ink-3);
  transition:background .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.search-box input{
  border:0;background:transparent;outline:none;
  font-family:inherit;font-size:14px;color:var(--ink);
  width:100%;min-width:0;
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(225,84,58,.24);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:0 8px 20px rgba(185,60,38,.24);}
.btn-primary:active{transform:none;box-shadow:none;background:var(--brand-strong);}
.btn-secondary{background:transparent;color:var(--accent);border:1.5px solid var(--accent);}
.btn-secondary:hover{background:var(--accent-soft);transform:translateY(-1px);}
.btn-secondary:active{transform:none;}
.btn-ghost{background:transparent;color:var(--accent);padding:0;height:auto;border:0;}
.btn-ghost .arrow{transition:transform .16s ease;}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.nav-cta{height:40px;padding:0 22px;border-radius:999px;font-size:14.5px;}
.burger{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--line-strong);
  background:#fff;border-radius:10px;color:var(--brand);cursor:pointer;
  transition:background .16s ease,border-color .16s ease;
}
.burger:hover{background:var(--brand-soft);border-color:var(--brand);}
.burger svg{width:22px;height:22px;}

/* ---------- 页面头部 ---------- */
.page-head{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  padding:56px 0 48px;
}
.crumb{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;}
.crumb a{color:var(--ink-2);transition:color .16s ease;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--ink-3);}
.page-head-grid{display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:start;}
.page-head h1{margin-bottom:16px;}
.page-head .sub{font-size:16.5px;color:var(--ink-2);max-width:560px;}
.head-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  padding:7px 11px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand-strong);
}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.tier-card{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 24px;
}
.tier-card h2{font-size:15px;font-weight:600;color:var(--ink-2);letter-spacing:0;margin-bottom:14px;}
.tier-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:12px 0;border-top:1px solid var(--line);
}
.tier-row:first-of-type{border-top:0;padding-top:0;}
.tier-name{font-size:14.5px;font-weight:500;color:var(--ink);}
.tier-price{font-size:17px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.tier-price small{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:2px;}
.tier-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;line-height:1.7;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section-tight{padding:56px 0;}
.section-line{border-top:1px solid var(--line);}
.section-head{max-width:680px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:1.5px;margin-bottom:12px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ---------- 套餐卡 ---------- */
.plans-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  align-items:stretch;
}
.plan-card{
  display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.plan-card.featured{border-color:var(--brand);box-shadow:0 8px 28px rgba(225,84,58,.14);}
.plan-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);}
.plan-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.plan-card:hover .plan-media img{transform:scale(1.03);}
.plan-flag{
  position:absolute;top:12px;left:12px;
  background:var(--brand);color:#fff;
  font-size:12px;font-weight:600;line-height:1;
  padding:7px 11px;border-radius:var(--r-badge);
  box-shadow:0 4px 12px rgba(185,60,38,.28);
}
.plan-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.plan-body h3{font-size:21px;margin-bottom:6px;}
.plan-desc{font-size:13.5px;color:var(--ink-3);line-height:1.7;margin-bottom:16px;}
.plan-price{
  display:flex;align-items:baseline;gap:4px;
  font-variant-numeric:tabular-nums;color:var(--brand);
  margin-bottom:18px;
}
.plan-price .num{font-size:34px;font-weight:700;line-height:1;}
.plan-price .unit{font-size:14px;font-weight:500;color:var(--ink-2);}
.plan-list{border-top:1px solid var(--line);padding-top:16px;margin-bottom:24px;flex:1;}
.plan-list li{
  position:relative;padding-left:26px;
  font-size:14.5px;line-height:1.75;color:var(--ink-2);
  margin-bottom:12px;
}
.plan-list li:last-child{margin-bottom:0;}
.plan-list li::before{
  content:"";position:absolute;left:0;top:6px;
  width:15px;height:15px;border-radius:50%;
  background:var(--accent-soft);
}
.plan-list li::after{
  content:"";position:absolute;left:4.5px;top:10px;
  width:6px;height:3px;border-left:1.6px solid var(--accent);
  border-bottom:1.6px solid var(--accent);transform:rotate(-45deg);
}
.plan-body .btn{width:100%;height:46px;font-size:14.5px;}

/* ---------- 对比表 ---------- */
.table-shell{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare{
  width:100%;min-width:720px;border-collapse:collapse;
  font-size:15px;
}
table.compare th,table.compare td{
  padding:16px 20px;text-align:center;
  border-bottom:1px solid var(--line);
}
table.compare thead th{
  background:var(--bg-soft);
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line-strong);
  vertical-align:middle;
}
table.compare thead th:first-child{text-align:left;color:var(--ink-2);font-weight:500;}
table.compare thead th.hl{background:var(--brand-soft);color:var(--brand-strong);position:relative;}
table.compare thead th.hl .mini{
  display:block;font-size:11.5px;font-weight:600;color:var(--brand);
  letter-spacing:.5px;margin-top:4px;
}
table.compare tbody th{
  text-align:left;font-size:14.5px;font-weight:500;color:var(--ink-2);
  background:#fff;
}
table.compare tbody td{font-variant-numeric:tabular-nums;color:var(--ink);}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:#FCFAF7;}
table.compare tbody tr:hover td.hl{background:#FCEDE7;}
table.compare td.hl{background:#FFF8F5;font-weight:600;}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
.table-tip{
  font-size:13px;color:var(--ink-3);
  padding:14px 20px;border-top:1px solid var(--line);
  background:var(--bg-soft);
}

/* ---------- 使用说明 ---------- */
.steps-wrap{max-width:800px;margin:0 auto;}
.step-item{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding:26px 0;border-top:1px solid var(--line);
}
.step-item:first-child{border-top:0;padding-top:0;}
.step-no{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-strong);
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:18px;margin-bottom:8px;}
.step-item p{font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-shell{
  max-width:800px;margin:0 auto;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:8px 32px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;min-height:56px;padding:12px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-sign{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .25s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-sign::before{left:0;top:10px;width:22px;height:2px;}
.faq-sign::after{left:10px;top:0;width:2px;height:22px;transition:opacity .2s ease;}
.faq-item.open .faq-sign{transform:rotate(180deg);}
.faq-item.open .faq-sign::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 0 18px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:640px;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 var(--section-y);}
.cta-inner{
  background:var(--brand-soft);
  border:1px solid #F6DCD2;
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:27px;margin-bottom:10px;}
.cta-inner p{font-size:15.5px;color:var(--ink-2);max-width:620px;}
.cta-inner .btn{flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);padding:64px 0 32px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:var(--dark-text);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--dark-muted);max-width:300px;}
.footer-domain{
  display:inline-block;margin-top:16px;
  font-size:13px;color:var(--dark-muted);
  border:1px solid rgba(239,232,222,.18);
  padding:5px 10px;border-radius:6px;letter-spacing:.4px;
}
.footer-col h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col p{font-size:14px;color:var(--dark-muted);line-height:1.8;margin-bottom:8px;}
.footer-col a{
  font-size:14px;color:var(--dark-muted);
  transition:color .16s ease;
  text-decoration:underline transparent;
  text-underline-offset:4px;
}
.footer-col a:hover{color:#FFFFFF;text-decoration-color:#FFFFFF;}
.footer-bottom{
  border-top:1px solid rgba(239,232,222,.14);
  padding-top:24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--dark-muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav{gap:20px;}
  .search-box{width:186px;}
  .nav-links{gap:20px;}
}
@media (max-width:1023px){
  h1{font-size:34px;line-height:1.3;}
  h2{font-size:26px;}
  :root{--section-y:56px;}
  .page-head-grid{grid-template-columns:1fr;gap:28px;}
  .page-head .sub{max-width:none;}
  .plans-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:36px 32px;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:68px;left:0;right:0;
    height:calc(100vh - 68px);
    background:#FFFFFF;
    flex-direction:column;align-items:stretch;
    gap:0;padding:8px 24px 32px;
    margin-right:0;
    border-top:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .28s ease;
    overflow-y:auto;
    z-index:59;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{
    height:56px;display:flex;align-items:center;
    font-size:16px;padding:0;border-bottom:1px solid var(--line);
  }
  .nav-links a.active::after{display:none;}
  .nav-links a.active{color:var(--brand);}
  .search-box{display:none;}
  .burger{display:inline-flex;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  h1{font-size:28px;line-height:1.35;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  :root{--section-y:44px;}
  .wrap,.container,.nav{padding:0 16px;}
  .page-head{padding:36px 0 32px;}
  .plans-grid{grid-template-columns:1fr;gap:20px;}
  .plan-body{padding:20px;}
  .step-item{grid-template-columns:44px 1fr;gap:14px;}
  .faq-shell{padding:4px 20px;}
  .cta-inner{padding:28px 22px;flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding:48px 0 28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{height:48px;}
}
@media (max-width:520px){
  .wrap,.container,.nav{padding:0 12px;}
  .plan-body{padding:16px;}
  .faq-shell{padding:4px 16px;}
  .logo-text{font-size:16px;}
  .nav{gap:12px;}
  .nav-cta{padding:0 16px;font-size:14px;}
  .tier-card{padding:18px;}
  .section-head{margin-bottom:28px;}
}