/* roulang page: index */
:root{
  --ink:#0D0F0C;
  --paper:#F7F7F4;
  --surface:#EFEEE9;
  --line:#DCDAD2;
  --lime:#C6F24E;
  --orange:#FF5A2D;
  --text:#2A2C27;
  --muted:#6B6E66;
  --ink-text:#F7F7F4;
  --ink-muted:#A9AEA3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(13,15,12,.04);
  --shadow-2:0 12px 32px -12px rgba(13,15,12,.14);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","IBM Plex Sans",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:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;margin:0;font-weight:700;line-height:1.2;}
p{margin:0;}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
a:hover{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;border-spacing:0;margin:0;background:transparent;}
button{cursor:pointer;background:none;border:0;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

/* ---------- 容器 ---------- */
.rl-wrap{width:100%;max-width:1248px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--paper);color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn:active{transform:translateY(1px);}

.link-more{
  display:inline-block;font-size:15px;font-weight:600;color:var(--ink);
  padding-bottom:2px;
  background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 1px;
  transition:background-size .26s ease;
}
.link-more:hover{background-size:100% 1px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,247,244,.94);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:70px;}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;color:var(--ink);}
.logo-mark{width:26px;height:26px;border-radius:8px;background:var(--ink);position:relative;flex:none;}
.logo-mark::after{content:"";position:absolute;top:7px;left:7px;right:7px;bottom:7px;border-radius:2px;background:var(--lime);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;font-size:15px;
  border-radius:8px;color:var(--text);transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--surface);}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-link.is-active{font-weight:600;color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 10px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  transition:width .24s ease,border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:focus-within{width:280px;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.22);}
.cmd-search svg{flex:none;opacity:.45;}
.cmd-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;line-height:1;}
.cmd-search input::placeholder{color:var(--muted);}
.kbd{
  flex:none;font-family:var(--font-num);font-size:11px;letter-spacing:.02em;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;line-height:1.4;
}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text);
  transition:border-color .18s ease,background-color .18s ease;
}
.icon-btn:hover{border-color:var(--ink);background:var(--surface);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{display:none;}
.mobile-panel.is-open{display:block;border-top:1px solid var(--line);padding:14px 0 22px;}
.mobile-panel .nav-link{display:block;padding:13px 0;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;position:relative;}
.mobile-panel .nav-link::after{display:none;}
.mobile-panel .nav-link.is-active{padding-left:14px;}
.mobile-panel .nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--lime);transform:translateY(-50%);
}
.mobile-panel .cmd-search{width:100%;margin-top:16px;}
.mobile-panel .cmd-search:focus-within{width:100%;}
.mobile-panel .btn{width:100%;margin-top:14px;}

/* ---------- Hero ---------- */
.hero{border-bottom:1px solid var(--line);background:var(--paper);}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(32px,4vw,56px);align-items:center;
  padding-top:clamp(48px,6vw,84px);padding-bottom:clamp(56px,7vw,100px);
  min-height:78vh;
}
.hero-copy{max-width:560px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:#fff;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block;}
.hero h1{
  margin-top:22px;
  font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.06;letter-spacing:-.02em;color:var(--ink);
}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.4vw,19px);color:var(--muted);line-height:1.7;max-width:26em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:40px;}
.stat{padding:0 26px;position:relative;}
.stat:first-child{padding-left:0;}
.stat + .stat{border-left:1px solid var(--line);}
.stat-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:27px;font-weight:700;line-height:1.2;color:var(--ink);letter-spacing:-.02em;
}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.02em;line-height:1.5;}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-2);aspect-ratio:16/11;background:var(--ink);
}
.hero-media > img{width:100%;height:100%;object-fit:cover;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,15,12,.10) 0%,rgba(13,15,12,.74) 100%);}
.hero-card{
  position:absolute;left:24px;right:24px;bottom:22px;display:flex;align-items:center;gap:10px;
  color:var(--ink-text);font-size:14px;letter-spacing:.02em;
}
.hero-card .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none;box-shadow:0 0 0 4px rgba(198,242,78,.22);}
.hero-thumb{
  position:absolute;right:18px;top:18px;width:170px;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid rgba(247,247,244,.3);box-shadow:0 12px 30px -12px rgba(0,0,0,.55);
}
.hero-thumb img{width:100%;height:auto;aspect-ratio:8/5;object-fit:cover;}

/* ---------- 区块通用 ---------- */
.section{padding:clamp(72px,9vw,128px) 0;}
.section-alt{background:var(--surface);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:clamp(32px,4vw,48px);
}
.section-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.15;letter-spacing:-.015em;color:var(--ink);}
.section-sub{margin-top:14px;font-size:15px;color:var(--muted);max-width:640px;}
.section-dark{background:var(--ink);color:var(--ink-text);}
.section-dark .section-head h2{color:var(--ink-text);}
.section-dark .section-sub{color:var(--ink-muted);}

/* ---------- 档位阶梯 ---------- */
.ladder{border-top:1px solid var(--line);}
.ladder-item{
  position:relative;display:grid;grid-template-columns:92px minmax(0,1fr) 160px;
  gap:32px;align-items:start;padding:34px 28px 34px 20px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease;
}
.ladder-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);
  transform:scaleY(0);transform-origin:top;transition:transform .26s ease-out;
}
.ladder-item:hover{background:var(--surface);}
.ladder-item:hover::before{transform:scaleY(1);}
.ladder-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:700;line-height:1;letter-spacing:-.03em;color:var(--line);
  transition:color .22s ease;
}
.ladder-item:hover .ladder-num{color:var(--ink);}
.ladder-body h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.35;}
.ladder-for{margin-top:8px;font-size:14px;color:var(--muted);}
.ladder-list{margin-top:18px;display:grid;gap:8px;}
.ladder-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.7;}
.ladder-list li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--ink);}
.ladder-cta{padding-top:6px;text-align:right;}

/* ---------- 套餐对比 ---------- */
.compare-wrap{
  overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  box-shadow:var(--shadow-1);
}
table.compare{width:100%;min-width:660px;}
.compare th,.compare td{padding:17px 20px;font-size:15px;text-align:center;border-bottom:1px solid var(--line);}
.compare thead th{vertical-align:top;padding-top:26px;padding-bottom:22px;background:#fff;}
.compare tbody th{
  text-align:left;font-weight:500;color:var(--text);background:#fff;
  position:sticky;left:0;z-index:1;
}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0;}
.plan-name{display:block;font-size:19px;font-weight:700;color:var(--ink);line-height:1.3;}
.plan-note{display:block;margin-top:6px;font-size:13px;font-weight:400;color:var(--muted);}
.plan-price{
  display:block;margin-top:14px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;letter-spacing:-.02em;color:var(--ink);line-height:1;
}
.plan-price small{font-size:13px;font-weight:500;color:var(--muted);margin-left:4px;letter-spacing:0;}
.col-rec{background:rgba(255,90,45,.05);border-left:1px solid var(--orange);border-right:1px solid var(--orange);}
.compare thead th.col-rec{border-top:1px solid var(--orange);}
.badge-rec{
  display:inline-block;background:var(--orange);color:#fff;font-size:12px;font-weight:600;
  border-radius:999px;padding:3px 10px;margin-bottom:12px;letter-spacing:.04em;
}
.mark-yes{color:var(--ink);font-weight:700;font-size:16px;}
.mark-no{color:#C3C1B8;font-weight:600;font-size:16px;}
.compare-mobile{display:none;}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 22px;}
.plan-card.is-rec{border-color:var(--orange);}
.plan-card .plan-list{margin-top:18px;display:grid;gap:10px;}
.plan-card .plan-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:15px;padding-bottom:10px;border-bottom:1px solid var(--line);}
.plan-card .plan-list li:last-child{border-bottom:0;padding-bottom:0;}
.plan-card .btn{width:100%;margin-top:22px;}

/* ---------- 限时入口 ---------- */
.timer-banner{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:var(--ink-text);
  padding:clamp(32px,4vw,56px);
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
}
.timer-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,15,12,.94) 0%,rgba(13,15,12,.82) 55%,rgba(13,15,12,.62) 100%);}
.timer-body,.timer-action{position:relative;z-index:1;}
.timer-title{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.2;letter-spacing:-.015em;}
.timer-desc{margin-top:14px;font-size:15px;color:var(--ink-muted);max-width:520px;line-height:1.8;}
.countdown{display:flex;align-items:center;gap:10px;margin-top:28px;flex-wrap:wrap;}
.cd-box{
  min-width:66px;padding:10px 8px;text-align:center;
  border:1px solid rgba(247,247,244,.24);border-radius:10px;background:rgba(247,247,244,.04);
}
.cd-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;line-height:1.1;color:var(--ink-text);
  transition:transform .14s ease-out,opacity .14s ease-out;
}
.cd-num.is-tick{transform:translateY(-2px);}
.cd-label{display:block;margin-top:5px;font-size:12px;color:var(--ink-muted);letter-spacing:.04em;line-height:1.4;}
.cd-sep{color:rgba(247,247,244,.34);font-weight:700;font-family:var(--font-num);}
.timer-action{display:flex;flex-direction:column;align-items:flex-end;gap:14px;text-align:right;}
.timer-action .hint{font-size:13px;color:var(--ink-muted);letter-spacing:.02em;}

/* ---------- 信息卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  height:100%;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFCDC4;}
.info-card a{display:block;height:100%;}
.info-cover{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--surface);}
.info-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.info-card:hover .info-cover img{transform:scale(1.03);}
.badge{
  position:absolute;left:12px;top:12px;z-index:1;
  background:var(--lime);color:var(--ink);font-size:12px;font-weight:600;
  border-radius:999px;padding:4px 12px;letter-spacing:.02em;line-height:1.5;
}
.info-body{padding:20px 20px 22px;}
.info-body h3{
  font-size:19px;font-weight:600;line-height:1.35;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-body p{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);letter-spacing:.02em;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:60px 24px;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq{max-width:820px;}
.faq .accordion{background:transparent;border:0;border-top:1px solid var(--line);margin:0;}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.5;
  transition:color .2s ease;
}
.faq .accordion-title:hover{background:transparent;color:var(--ink);}
.faq .accordion-title::before{display:none;content:none;}
.faq .accordion-title::after{
  content:"+";flex:none;font-family:var(--font-num);font-size:20px;font-weight:400;
  color:var(--muted);transition:color .2s ease,transform .2s ease;line-height:1;
}
.faq .accordion-item.is-active .accordion-title{color:var(--ink);}
.faq .accordion-item.is-active .accordion-title::after{content:"−";color:var(--ink);}
.faq .accordion-content{
  padding:0 0 26px;border:0;background:transparent;color:var(--muted);font-size:15px;line-height:1.85;
}
.faq .accordion-content p{color:var(--muted);}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(24px,3vw,44px);box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;font-size:15px;line-height:1.6;
  border:1px solid var(--line);border-radius:10px;background:var(--paper);
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:132px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--lime);background:#fff;box-shadow:0 0 0 3px rgba(198,242,78,.24);
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--orange);}
.field .err{display:none;font-size:13px;color:var(--orange);line-height:1.5;}
.field.is-error .err{display:block;}
.checkbox-row{
  display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);line-height:1.7;
}
.checkbox-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--ink);flex:none;}
.form-foot{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.form-note{font-size:13px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--ink-text);padding-top:clamp(56px,6vw,88px);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-text);margin-bottom:16px;}
.footer-logo .logo-mark{background:var(--lime);}
.footer-logo .logo-mark::after{background:var(--ink);}
.footer-desc{font-size:14px;color:var(--ink-muted);line-height:1.85;max-width:320px;}
.footer-title{font-size:13px;letter-spacing:.06em;color:var(--ink-muted);margin-bottom:18px;line-height:1.5;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:15px;color:var(--ink-text);transition:color .18s ease;}
.footer-links a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;color:var(--ink-muted);margin-bottom:11px;line-height:1.7;}
.footer-contact a{color:var(--ink-text);}
.footer-contact a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:clamp(40px,5vw,68px);padding:24px 0;border-top:1px solid rgba(247,247,244,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-muted);letter-spacing:.02em;
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1099px){
  .cmd-search{width:170px;}
  .cmd-search:focus-within{width:210px;}
  .nav-inner{gap:14px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-right .cmd-search,.nav-right .icon-btn,.nav-right .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-right{margin-left:auto;}
}
@media (max-width:959px){
  .hero-inner{grid-template-columns:minmax(0,1fr);min-height:0;}
  .hero-media{aspect-ratio:16/9;order:-1;}
  .hero-copy{max-width:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ladder-item{grid-template-columns:70px minmax(0,1fr);}
  .ladder-cta{grid-column:2;text-align:left;padding-top:12px;}
  .timer-banner{grid-template-columns:minmax(0,1fr);}
  .timer-action{align-items:flex-start;text-align:left;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .compare-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
}
@media (max-width:639px){
  .rl-wrap{padding-left:20px;padding-right:20px;}
  .hero h1{letter-spacing:-.01em;}
  .hero-stats{margin-top:32px;gap:20px 0;}
  .stat{padding:0 18px;}
  .stat-num{font-size:23px;}
  .hero-thumb{width:120px;right:12px;top:12px;}
  .hero-card{left:16px;right:16px;bottom:16px;font-size:13px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .ladder-item{grid-template-columns:minmax(0,1fr);gap:12px;padding:26px 0 26px 16px;}
  .ladder-num{font-size:30px;}
  .ladder-cta{grid-column:1;padding-top:8px;}
  .compare-wrap{display:none;}
  .compare-mobile{display:grid;gap:18px;}
  .form-grid{grid-template-columns:minmax(0,1fr);}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cd-box{min-width:60px;}
  .cd-num{font-size:20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  .js .reveal{opacity:1;transform:none;transition:none;}
  .info-card:hover{transform:none;}
  .info-card:hover .info-cover img{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0D0F0C;
  --paper:#F7F7F4;
  --surface:#EFEEE9;
  --line:#DCDAD2;
  --lime:#C6F24E;
  --orange:#FF5A2D;
  --text:#2A2C27;
  --muted:#6B6E66;
  --rev:#F7F7F4;
  --rev-muted:#A9AEA3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(13,15,12,.04);
  --sh-2:0 12px 32px -12px rgba(13,15,12,.14);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body{font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif}
h1,h2,h3,h4,h5,h6{font-family:inherit;margin:0;color:inherit;line-height:1.25}
p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;background:transparent}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--lime);outline-offset:2px;
}
.num{font-family:"Inter","IBM Plex Sans",sans-serif;font-variant-numeric:tabular-nums}
.rl-wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%}
.section{padding:clamp(72px,9vw,128px) 0}
.section-sm{padding:clamp(48px,6vw,88px) 0}
.sec-head{margin-bottom:clamp(28px,3.4vw,48px)}
.sec-title{font-size:clamp(26px,3.2vw,40px);font-weight:700;letter-spacing:-.015em;line-height:1.15}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px}
.hairline{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,247,244,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:74px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{position:relative;width:24px;height:24px;border-radius:8px;background:var(--lime);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:2px;background:var(--ink)}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;transition:color .18s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:2px;background:var(--lime);
}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  transition:width .24s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cmd-search:focus-within{width:280px;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.30)}
.cmd-search i{font-size:13px;color:var(--muted);flex:0 0 auto}
.cmd-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px}
.cmd-search input::placeholder{color:#9EA199}
.kbd{font-size:11px;line-height:1;color:var(--muted);border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:3px 6px;white-space:nowrap}
.icon-btn{
  width:40px;height:40px;flex:0 0 auto;display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink);
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);transform:translateY(-1px)}
.nav-toggle{display:none;width:40px;height:40px;place-items:center;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:var(--r-btn)}
.nav-toggle:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--paper);padding:18px 0 24px}
.mobile-panel.is-open{display:block}
.mobile-panel .cmd-search{width:100%}
.mobile-panel .cmd-search:focus-within{width:100%}
.mobile-nav{display:flex;flex-direction:column;margin-top:16px}
.mobile-nav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--text)}
.mobile-nav a.is-active{color:var(--ink);font-weight:700}
.mobile-nav a.is-active::after{content:"";display:inline-block;width:18px;height:3px;border-radius:2px;background:var(--lime);margin-left:10px;vertical-align:middle}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-lime:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
  padding-bottom:3px;background-image:linear-gradient(var(--lime),var(--lime));
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 2px;
  transition:background-size .26s var(--ease);
}
.link-cta:hover{background-size:100% 2px}
.link-cta i{font-size:12px;transition:transform .22s var(--ease)}
.link-cta:hover i{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;letter-spacing:.01em;
}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-dark{background:var(--ink);color:var(--paper)}
.badge-line{border:1px solid var(--line);color:var(--muted);background:#fff}
.badge-orange{background:rgba(255,90,45,.12);color:var(--orange);border:1px solid rgba(255,90,45,.35)}

/* ---------- article hero ---------- */
.article-hero{padding:clamp(34px,4.4vw,64px) 0 clamp(24px,3vw,38px)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--muted);letter-spacing:.02em;margin-bottom:22px}
.crumb a{color:var(--muted);transition:color .18s var(--ease)}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--lime)}
.crumb .sep{color:#C4C2BA}
.crumb .now{color:#9A9D95;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(28px,3.8vw,50px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:920px;color:var(--ink);
}
.article-lead{margin-top:18px;max-width:760px;font-size:17px;color:var(--muted);line-height:1.8}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px;
  font-size:13px;color:var(--muted);letter-spacing:.02em;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.article-meta time{font-variant-numeric:tabular-nums}
.hero-rule{margin-top:30px;height:1px;background:var(--line);border:0}

/* ---------- article layout ---------- */
.article-main{padding:clamp(30px,4vw,56px) 0 clamp(56px,7vw,104px)}
.entry{max-width:760px}
.entry p{font-size:16px;line-height:1.9;margin:0 0 1.2em;color:var(--text)}
.entry > p:first-of-type{font-size:18px;line-height:1.85;color:#3A3D35}
.entry h2{
  position:relative;font-size:clamp(21px,2.2vw,27px);font-weight:700;line-height:1.35;
  margin:44px 0 16px;padding-left:15px;color:var(--ink);letter-spacing:-.01em;
}
.entry h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.26em;width:4px;border-radius:2px;background:var(--lime)}
.entry h3{font-size:19px;font-weight:600;line-height:1.35;margin:30px 0 12px;color:var(--ink)}
.entry h4{font-size:16px;font-weight:600;margin:22px 0 10px;color:var(--ink)}
.entry strong{font-weight:700;color:var(--ink)}
.entry a{color:var(--ink);border-bottom:1px solid var(--lime);transition:background-color .18s var(--ease)}
.entry a:hover{background-color:rgba(198,242,78,.34)}
.entry ul,.entry ol{margin:0 0 1.4em}
.entry ul > li{position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.85}
.entry ul > li::before{content:"";position:absolute;left:3px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--lime)}
.entry ol{counter-reset:entrynum}
.entry ol > li{position:relative;padding-left:32px;margin-bottom:.6em;line-height:1.85;counter-increment:entrynum}
.entry ol > li::before{
  content:counter(entrynum,decimal-leading-zero);position:absolute;left:0;top:.16em;
  font-family:"Inter","IBM Plex Sans",sans-serif;font-size:12px;font-weight:700;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.entry blockquote{
  margin:26px 0;padding:18px 24px;background:var(--surface);border-left:3px solid var(--lime);
  border-radius:0 var(--r-img) var(--r-img) 0;color:#4B4F47;
}
.entry blockquote p{font-size:16px;margin-bottom:.6em;color:#4B4F47}
.entry blockquote p:last-child{margin-bottom:0}
.entry img{width:100%;border-radius:var(--r-img);margin:26px 0 10px}
.entry figure{margin:26px 0}
.entry figure img{margin:0 0 10px}
.entry figcaption{font-size:13px;color:var(--muted);line-height:1.6}
.entry table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.entry thead th{background:var(--surface);font-weight:600;color:var(--ink)}
.entry th,.entry td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.entry tbody tr:hover{background:rgba(239,238,233,.6)}
.entry hr{border:0;height:1px;background:var(--line);margin:36px 0}
.entry code{background:var(--surface);border-radius:6px;padding:2px 6px;font-size:14px}

.entry-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);max-width:760px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:22px}
.tag-row .tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--muted);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.tag-row .tag:hover{border-color:var(--ink);color:var(--ink)}
.foot-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.share-slot{display:flex;align-items:center;gap:10px;margin-left:auto;font-size:13px;color:var(--muted)}
.share-slot span.share-btn{
  width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--muted);transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.share-slot span.share-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}

/* ---------- aside ---------- */
.aside{position:sticky;top:96px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:18px;
}
.aside-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:14px}
.aside-list li{position:relative;padding-left:18px;padding-bottom:12px;font-size:14px;line-height:1.7;color:var(--text)}
.aside-list li:last-child{padding-bottom:0}
.aside-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--lime)}
.aside-nav{display:flex;flex-direction:column}
.aside-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--text);
  transition:color .18s var(--ease),padding-left .2s var(--ease);
}
.aside-nav a:last-child{border-bottom:0}
.aside-nav a:hover{color:var(--ink);padding-left:6px}
.aside-nav a i{font-size:11px;color:var(--muted)}
.aside-cta{background:var(--ink);color:var(--rev);border-color:var(--ink)}
.aside-cta .aside-title{color:var(--rev-muted)}
.aside-cta p{font-size:14px;line-height:1.75;color:var(--rev-muted);margin-bottom:16px}

/* ---------- post cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-thumb{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--surface)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-thumb .badge{position:absolute;left:14px;top:14px}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-title{font-size:18px;font-weight:700;line-height:1.45;color:var(--ink);margin-bottom:10px}
.post-excerpt{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-wrap .accordion{background:transparent;border:0;margin:0}
.faq-wrap .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-wrap .accordion-title{
  position:relative;display:block;padding:22px 44px 22px 0;font-size:17px;font-weight:600;
  color:var(--ink);line-height:1.5;border:0;background:transparent;transition:color .18s var(--ease);
}
.faq-wrap .accordion-title::before{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-family:"Inter",sans-serif;font-size:22px;font-weight:400;color:var(--muted);line-height:1;
}
.faq-wrap .accordion-item.is-active .accordion-title{font-weight:800}
.faq-wrap .accordion-item.is-active .accordion-title::before{content:"–";color:var(--ink)}
.faq-wrap .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:2px;background:var(--lime);
}
.faq-wrap .accordion-item.is-active .accordion-title{padding-left:18px}
.faq-wrap .accordion-content{padding:0 44px 24px 0;font-size:15px;line-height:1.85;color:var(--muted);border:0;background:transparent}
.faq-wrap .accordion-content p{font-size:15px;line-height:1.85;color:var(--muted);margin:0}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:var(--rev);border-radius:18px;
  padding:clamp(30px,4vw,54px);display:flex;flex-wrap:wrap;gap:30px;
  align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.2}
.cta-band p{margin-top:12px;font-size:15px;color:var(--rev-muted);max-width:520px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:clamp(36px,5vw,60px) 28px;text-align:center;
}
.empty-title{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.empty-text{font-size:15px;color:var(--muted);margin-bottom:24px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--rev);padding:clamp(52px,7vw,84px) 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--rev);margin-bottom:14px}
.footer-logo .logo-mark{background:var(--lime)}
.footer-logo .logo-mark::after{background:var(--ink)}
.footer-desc{font-size:14px;line-height:1.8;color:var(--rev-muted);max-width:320px}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--rev-muted);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--rev);opacity:.86;transition:opacity .18s var(--ease),color .18s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{opacity:1;color:var(--lime);padding-left:4px}
.footer-contact{display:flex;flex-direction:column;gap:11px}
.footer-contact li{font-size:14px;line-height:1.75;color:var(--rev-muted)}
.footer-contact a{color:var(--lime)}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(247,247,244,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--rev-muted);letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:1023px){
  .nav-links,.header-tools .cmd-search{display:none}
  .nav-toggle{display:grid}
  .aside{position:static;margin-top:38px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
}
@media screen and (max-width:767px){
  .rl-wrap{padding:0 20px}
  .header-inner{height:66px;gap:14px}
  .header-tools{gap:10px}
  .header-tools .btn{display:none}
  .article-meta{gap:10px;font-size:12.5px}
  .crumb .now{white-space:normal}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:34px}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;justify-content:center}
  .share-slot{margin-left:0;width:100%;margin-top:6px}
  .faq-wrap .accordion-title{font-size:16px;padding:18px 40px 18px 0}
  .faq-wrap .accordion-item.is-active .accordion-title{padding-left:16px}
}
@media screen and (max-width:519px){
  .article-title{font-size:26px}
  .entry > p:first-of-type{font-size:17px}
  .entry table{font-size:14px}
  .entry th,.entry td{padding:10px 10px}
  .entry{padding-right:2px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1;transform:none}
  .post-card:hover{transform:none}
  .post-card:hover .post-thumb img{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0D0F0C;
  --paper:#F7F7F4;
  --surface:#EFEEE9;
  --line:#DCDAD2;
  --lime:#C6F24E;
  --orange:#FF5A2D;
  --teal:#0F5F55;
  --text:#2A2C27;
  --muted:#6B6E66;
  --inv:#F7F7F4;
  --inv-muted:#A9AEA3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(13,15,12,.04);
  --sh2:0 12px 32px -12px rgba(13,15,12,.14);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"Noto Sans SC","思源黑体","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","IBM Plex Sans","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -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;border-style:none}
a{color:var(--text);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}
.rl-wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.rl-section{padding:clamp(72px,9vw,128px) 0}
.rl-section--tight{padding-top:clamp(48px,6vw,80px)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:block}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(32px,4vw,48px)}
.section-title{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.15;letter-spacing:-.015em;color:var(--ink);max-width:760px}
.section-sub{color:var(--muted);font-size:15px;max-width:620px;margin-top:12px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,247,244,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:22px;height:22px;border-radius:6px;
  background:var(--ink);position:relative;display:inline-block;
}
.logo-mark::after{
  content:"";position:absolute;inset:6px;border-radius:2px;
  background:var(--lime);
}
.brand-text{font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--muted);
}
.nav-link:hover{color:var(--ink);background:var(--surface)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:2px;background:var(--lime);
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:220px;padding:8px 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;transition:width .22s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.command-search:focus-within{width:280px;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.28)}
.command-search i{color:var(--muted);font-size:13px}
.command-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px}
.kbd{
  flex:0 0 auto;font-family:var(--font-num);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:var(--paper);
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
}
.icon-btn:hover{background:var(--ink);color:var(--inv);border-color:var(--ink)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  margin-left:auto;
}
.nav-toggle i{font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--inv);border:1px solid var(--ink)}
.btn-primary:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--inv)}
.btn-lime{background:var(--lime);color:var(--ink);border:1px solid var(--lime)}
.btn-lime:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:10px 16px;font-size:14px}
.link-cta{
  display:inline-block;font-weight:600;color:var(--ink);
  background-image:linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  transition:background-size .26s var(--ease),color .18s var(--ease);
  padding-bottom:2px;
}
.link-cta:hover{background-size:100% 1px}
.link-cta--lime{background-image:linear-gradient(var(--lime),var(--lime))}

/* ---------- 面包屑 + 页头 ---------- */
.breadcrumb{display:flex;justify-content:flex-end;margin-bottom:14px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:var(--line)}
.crumb .current{color:#9C9F96}
.page-hero{padding:clamp(56px,7vw,104px) 0 clamp(40px,5vw,64px)}
.page-hero h1{
  font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.06;
  letter-spacing:-.02em;color:var(--ink);max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--teal)}
.page-lede{
  margin-top:22px;max-width:660px;color:var(--muted);font-size:17px;line-height:1.85;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:28px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--surface);color:var(--ink);
}
.badge-lime{background:rgba(198,242,78,.32);color:var(--ink)}
.badge-ink{background:var(--ink);color:var(--inv)}

/* ---------- 交错图文 ---------- */
.zig-row{
  display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,1fr);
  gap:clamp(28px,5vw,64px);align-items:center;
  padding:clamp(30px,4vw,52px) 0;
  border-top:1px solid var(--line);
}
.zig-row:first-of-type{border-top:0}
.zig-row.is-reverse .zig-media{order:2}
.zig-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);background:var(--surface)}
.zig-media img{width:100%;height:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.zig-media:hover img{transform:scale(1.03)}
.zig-index{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:999px;
  background:rgba(13,15,12,.78);color:var(--inv);
  font-family:var(--font-num);font-size:12px;letter-spacing:.06em;
}
.zig-body h3{font-size:19px;font-weight:600;line-height:1.35;color:var(--ink);margin-bottom:12px}
.zig-body p{color:var(--muted);font-size:16px}
.point-list{margin-top:20px;display:grid;gap:1px;background:var(--line);border-top:1px solid var(--line)}
.point-list li{
  background:var(--paper);padding:14px 0 14px 26px;position:relative;font-size:15px;color:var(--text);
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:22px;width:10px;height:2px;background:var(--lime);
}
.point-list li strong{color:var(--ink);font-weight:600}

/* ---------- 流程步骤 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.step{
  padding:28px 26px 30px 0;border-right:1px solid var(--line);position:relative;
}
.step:last-child{border-right:0}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--line);
  line-height:1;letter-spacing:-.03em;
}
.step h4{font-size:16px;font-weight:600;color:var(--ink);margin-top:14px}
.step p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.75}
.step::after{
  content:"";position:absolute;top:-1px;left:0;width:0;height:2px;background:var(--lime);
  transition:width .3s var(--ease);
}
.step:hover::after{width:100%}

/* ---------- 规格表 ---------- */
.spec-table{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff}
.spec-row{display:grid;grid-template-columns:1.05fr 1.7fr .9fr;gap:20px;padding:20px 24px;border-top:1px solid var(--line)}
.spec-row:first-child{border-top:0;background:var(--surface)}
.spec-head{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600}
.spec-name{font-weight:600;color:var(--ink);font-size:16px}
.spec-desc{color:var(--muted);font-size:15px}
.spec-cycle{font-family:var(--font-num);font-size:15px;color:var(--ink);font-weight:600}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  background:var(--ink);color:var(--inv);border-radius:var(--r-card);
  padding:clamp(34px,4.4vw,56px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-banner h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.2;color:#fff;letter-spacing:-.015em}
.cta-banner p{color:var(--inv-muted);margin-top:12px;max-width:560px;font-size:15px}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-family:var(--font-num);font-size:20px;line-height:1;color:var(--muted);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq details[open] summary{color:var(--ink)}
.faq details[open] summary::after{content:"−";color:var(--teal)}
.faq .faq-body{padding:0 0 24px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:700px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inv);margin-top:clamp(56px,7vw,96px)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding:clamp(48px,6vw,76px) 0 40px;
}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;color:#fff}
.footer-logo .logo-mark{background:#fff}
.footer-logo .logo-mark::after{background:var(--ink)}
.footer-desc{color:var(--inv-muted);font-size:14.5px;margin-top:16px;max-width:340px;line-height:1.8}
.footer-title{font-size:13px;letter-spacing:.06em;color:#fff;font-weight:600;margin-bottom:16px}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14.5px;color:var(--inv-muted)}
.footer-links a,.footer-contact a{color:var(--inv-muted)}
.footer-links a:hover,.footer-contact a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(247,247,244,.14);
  padding:22px 0 34px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--inv-muted);letter-spacing:.02em;
}

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

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{transform:none}
  .zig-media:hover img{transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step:nth-child(2){border-right:0}
  .step{border-bottom:1px solid var(--line)}
}
@media (max-width:959px){
  .nav-toggle{display:inline-flex}
  .nav-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
  .nav-links{
    display:none;order:4;width:100%;flex-direction:column;align-items:stretch;
    gap:2px;margin:0;padding:10px 0 4px;border-top:1px solid var(--line);
  }
  .site-header.is-open .nav-links{display:flex}
  .nav-link{padding:12px 4px;border-radius:0}
  .nav-link.is-active::after{left:4px;right:auto;width:22px;bottom:8px}
  .nav-tools{
    display:none;order:3;width:100%;margin:0;flex-wrap:wrap;
    padding:12px 0 4px;
  }
  .site-header.is-open .nav-tools{display:flex}
  .command-search{width:100%;order:1}
  .command-search:focus-within{width:100%}
  .icon-btn{order:2}
  .nav-tools .btn{order:3;flex:1}
  .zig-row{grid-template-columns:1fr;gap:24px}
  .zig-row.is-reverse .zig-media{order:0}
  .spec-row{grid-template-columns:1fr;gap:6px}
  .spec-head{font-size:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  .rl-wrap{padding:0 20px}
  .brand-text{font-size:16px}
  .page-hero h1{font-size:32px}
  .page-lede{font-size:16px}
  .step-grid{grid-template-columns:1fr}
  .step{border-right:0;padding-right:0}
  .cta-banner{padding:28px 22px}
  .cta-banner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq summary{font-size:16px}
}

/* roulang page: category2 */
:root{
  --ink:#0D0F0C;
  --ink-2:#171A15;
  --paper:#F7F7F4;
  --surface:#EFEEE9;
  --line:#DCDAD2;
  --line-strong:#C9C6BC;
  --teal:#1F6F63;
  --teal-deep:#155349;
  --teal-soft:#E3EEE9;
  --lime:#C6F24E;
  --orange:#FF5A2D;
  --text:#2A2C27;
  --muted:#6B6E66;
  --white:#F7F7F4;
  --white-muted:#A9AEA3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(13,15,12,.04);
  --sh-2:0 12px 32px -12px rgba(13,15,12,.14);
  --gap:24px;
  --sec-pad:clamp(64px,8vw,112px);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","IBM Plex Sans","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--teal)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
::selection{background:var(--lime);color:var(--ink)}

/* ---------- Foundation 覆盖与栅格兜底 ---------- */
.grid-x{display:flex;flex-wrap:wrap;margin:0;gap:var(--gap)}
.grid-x>.cell{flex:0 0 auto;padding:0;min-width:0}
.cell.small-12{width:100%}
@media (min-width:640px){
  .cell.medium-6{width:calc(50% - var(--gap)/2)}
  .cell.medium-4{width:calc(33.333% - var(--gap)*2/3)}
}
@media (min-width:960px){
  .cell.large-4{width:calc(33.333% - var(--gap)*2/3)}
  .cell.large-6{width:calc(50% - var(--gap)/2)}
  .cell.large-8{width:calc(66.666% - var(--gap)/3)}
}
button,.button{border:0;background:none;cursor:pointer}

/* ---------- 容器 ---------- */
.rl-wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:639px){
  .rl-wrap{padding:0 20px}
}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal);
  font-weight:600;
}
.sec-title{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.sec-sub{
  margin-top:14px;
  color:var(--muted);
  font-size:16px;
  max-width:720px;
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:clamp(32px,4vw,48px);
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.sec-head .sec-sub{margin-top:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--white)}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--teal);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus-visible{background:var(--ink);color:var(--white)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover,.btn-lime:focus-visible{background:#d6ff6b;color:var(--ink)}
.btn-block{width:100%}
.text-link{
  display:inline-block;
  position:relative;
  font-weight:600;
  font-size:14px;
  color:var(--teal);
  padding-bottom:3px;
  background-image:linear-gradient(var(--teal),var(--teal));
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:100% 1px;
  transition:background-size .26s ease-out,color .26s ease-out;
}
.text-link:hover{background-size:0 1px;color:var(--teal-deep)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,247,244,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  letter-spacing:-.01em;
  color:var(--ink);
  flex:0 0 auto;
}
.logo-mark{
  width:22px;
  height:22px;
  border-radius:6px;
  background:var(--ink);
  position:relative;
  display:inline-block;
}
.logo-mark::after{
  content:"";
  position:absolute;
  left:5px;top:5px;
  width:12px;height:12px;
  border-radius:3px;
  background:var(--lime);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  padding:8px 12px 10px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:8px;
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:var(--surface)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:3px;
  border-radius:2px;
  background:var(--lime);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  padding:8px 10px 8px 12px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  background:#fff;
  transition:width .24s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.cmd-search:focus-within{
  width:280px;
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(31,111,99,.10);
}
.cmd-search svg{flex:0 0 auto;color:var(--muted)}
.cmd-search input{
  border:0;
  outline:none;
  width:100%;
  background:transparent;
  font-size:14px;
}
.cmd-search input::placeholder{color:#9A9D94}
.cmd-kbd{
  flex:0 0 auto;
  font-family:var(--font-num);
  font-size:11px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  background:var(--paper);
}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.icon-btn:hover{background:var(--ink);color:var(--white);border-color:var(--ink)}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  background:#fff;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;
  background:var(--ink);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- 页头 ---------- */
.page-head{
  padding:clamp(56px,7vw,104px) 0 clamp(40px,5vw,72px);
  background:
    radial-gradient(720px 320px at 88% 0%,rgba(31,111,99,.10),transparent 62%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
.crumbs{
  font-size:13px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:26px;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--teal)}
.crumbs .sep{color:var(--line-strong)}
.crumbs .current{color:#9A9D94}
.page-head h1{
  font-size:clamp(32px,4.8vw,58px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  max-width:960px;
}
.page-head h1 em{
  font-style:normal;
  color:var(--teal);
}
.page-lead{
  margin-top:22px;
  max-width:720px;
  color:var(--muted);
  font-size:17px;
  line-height:1.85;
}
.head-meta{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  background:var(--teal-soft);
  color:var(--teal-deep);
  border:1px solid rgba(31,111,99,.16);
}
.chip.neutral{background:var(--surface);color:var(--muted);border-color:var(--line)}

/* ---------- 板块 ---------- */
.section{padding:var(--sec-pad) 0}
.section.alt{background:var(--surface)}
.section.tight{padding:clamp(48px,6vw,88px) 0}

/* ---------- 卡片矩阵 ---------- */
.matrix-card{
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 24px;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.matrix-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:var(--line-strong);
}
.matrix-card .icon-box{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--teal-soft);
  color:var(--teal-deep);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.matrix-card h3{
  font-size:19px;
  font-weight:600;
  line-height:1.35;
  color:var(--ink);
  margin-bottom:10px;
}
.matrix-card p{
  font-size:15px;
  line-height:1.75;
  color:var(--muted);
  margin-bottom:20px;
}
.matrix-card .card-foot{margin-top:auto}
.card-index{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.1em;
  color:#A2A69C;
  font-weight:600;
  margin-bottom:14px;
}

/* ---------- 横向对比条 ---------- */
.compare-strip{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.strip-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.strip-item{
  padding:32px 26px;
  border-right:1px solid var(--line);
}
.strip-item:last-child{border-right:0}
.strip-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.6vw,44px);
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.05;
}
.strip-num small{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px;letter-spacing:0}
.strip-label{
  margin-top:12px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
}
.strip-note{
  margin-top:6px;
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
}

/* ---------- 核对清单 ---------- */
.check-band{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center}
.check-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  aspect-ratio:16/11;
}
.check-figure img{width:100%;height:100%;object-fit:cover}
.check-list{margin-top:8px}
.check-item{
  display:flex;
  gap:16px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.check-item:first-child{border-top:1px solid var(--line)}
.check-mark{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--lime);
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
}
.check-item h4{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.check-item p{font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:22px 44px 22px 0;
  position:relative;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:22px;
  font-weight:400;
  color:var(--muted);
  transition:color .18s ease-out;
}
.faq-item[open] summary{color:var(--teal)}
.faq-item[open] summary::after{content:"−";color:var(--teal)}
.faq-item p{
  padding:0 44px 24px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink);
  color:var(--white);
  overflow:hidden;
}
.cta-band .cta-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.22;
}
.cta-band .cta-inner{
  position:relative;
  padding:clamp(56px,7vw,96px) 0;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--white);
}
.cta-band p{
  margin-top:16px;
  color:var(--white-muted);
  font-size:16px;
  max-width:560px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-band .btn-ghost{color:var(--white);border-color:rgba(247,247,244,.42)}
.cta-band .btn-ghost:hover{background:var(--white);color:var(--ink);border-color:var(--white)}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:clamp(26px,3vw,40px);
  box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.02em}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  background:var(--paper);
  font-size:15px;
  transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--teal);
  background:#fff;
  box-shadow:0 0 0 3px rgba(31,111,99,.10);
}
.form-note{font-size:13px;color:var(--muted);line-height:1.7}
.form-foot{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.form-side h2{font-size:clamp(24px,2.8vw,34px);line-height:1.18;font-weight:700;color:var(--ink)}
.form-side p{margin-top:16px;color:var(--muted);font-size:16px}
.form-side .side-list{margin-top:26px}
.form-side .side-list li{
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--text);
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.form-side .side-list li::before{
  content:"";
  flex:0 0 auto;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--lime);
  margin-top:11px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--white);
  padding:clamp(52px,6vw,80px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  color:var(--white);
}
.footer-logo .logo-mark{background:var(--white)}
.footer-logo .logo-mark::after{background:var(--teal)}
.footer-desc{
  margin-top:18px;
  color:var(--white-muted);
  font-size:14px;
  line-height:1.8;
  max-width:320px;
}
.footer-title{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--white);
  font-weight:600;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:12px}
.footer-links a{color:var(--white-muted);font-size:14px}
.footer-links a:hover{color:var(--lime)}
.footer-contact li{
  color:var(--white-muted);
  font-size:14px;
  line-height:1.8;
  margin-bottom:12px;
}
.footer-contact a{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(247,247,244,.14);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--white-muted);
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .cmd-search{width:180px}
  .cmd-search:focus-within{width:210px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;
    position:absolute;
    left:0;right:0;top:100%;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:16px 20px 20px;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
  }
  .site-header.is-open .nav-links{display:flex}
  .nav-link{padding:12px 10px;font-size:16px}
  .nav-link.is-active::after{left:10px;right:auto;width:22px}
  .nav-right .cmd-search{display:none}
  .nav-right .icon-btn{display:none}
  .site-header.is-open .nav-drawer-search{
    display:flex;
    position:absolute;
    left:20px;right:20px;top:calc(100% + 6px);
  }
}
@media (min-width:901px){
  .nav-drawer-search{display:none}
}
@media (max-width:767px){
  .strip-grid{grid-template-columns:1fr 1fr}
  .strip-item{border-bottom:1px solid var(--line)}
  .strip-item:nth-child(2n){border-right:0}
  .strip-item:nth-last-child(-n+2){border-bottom:0}
  .check-band{grid-template-columns:1fr}
  .grid-x>.cell{width:100%!important}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .nav-wrap{min-height:62px;gap:16px}
  .brand{font-size:16px}
  .page-head h1{letter-spacing:-.01em}
  .matrix-card{padding:24px 20px}
  .strip-grid{grid-template-columns:1fr}
  .strip-item{border-right:0}
  .strip-item:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .strip-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{transform:none;opacity:1}
  .matrix-card:hover{transform:none}
}