/* roulang page: index */
:root{
  --ink-900:#0E1113;
  --ink-700:#1F262B;
  --ink-500:#3A444C;
  --ink-300:#6B767F;
  --line:#E3DED4;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --signal:#12946E;
  --signal-soft:rgba(18,148,110,.08);
  --flare:#D4703A;
  --flare-soft:rgba(212,112,58,.08);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-btn:2px;
  --r-card:4px;
  --r-img:4px;
  --container:1240px;
  --container-narrow:920px;
  --gap:32px;
  --pad-section:104px;
  --shadow-panel:0 20px 40px rgba(14,17,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-500);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--serif);
  color:var(--ink-900);
  margin:0;
  font-weight:700;
}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.12;letter-spacing:-.02em;}
h2{font-size:clamp(26px,2.8vw,38px);line-height:1.2;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;}
a{color:var(--signal);text-decoration:underline;text-underline-offset:3px;}
a:hover{color:var(--ink-900);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}
::selection{background:rgba(18,148,110,.18);}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.container-narrow{max-width:var(--container-narrow);}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink-900);color:#fff;padding:10px 16px;border-radius:var(--r-btn);
}
.skip-link:focus{left:16px;top:12px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(246,244,239,.96);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.92);
  box-shadow:0 8px 24px rgba(14,17,19,.06);
  backdrop-filter:saturate(140%) blur(8px);
}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--serif);
  font-size:19px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink-900);text-decoration:none;white-space:nowrap;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:var(--r-btn);
  background:var(--ink-900);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:14px;letter-spacing:0;
}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink-700);
  text-decoration:none;
  border-radius:var(--r-btn);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--ink-900);background:rgba(14,17,19,.04);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink-900);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid var(--line);
  color:var(--ink-700);font-size:15px;
  padding:9px 14px;border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.mega-trigger:hover{border-color:var(--ink-500);color:var(--ink-900);background:var(--paper-2);}
.mega-trigger .caret{
  width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .2s var(--ease);
}
.mega-wrap.is-open .mega-trigger{border-color:var(--ink-900);color:var(--ink-900);}
.mega-wrap.is-open .caret{transform:rotate(225deg) translateY(-2px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:880px;max-width:calc(100vw - 48px);
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-panel);
  padding:28px;
  display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{margin-bottom:14px;font-size:15px;color:var(--ink-900);}
.mega-item{display:block;padding:8px 0;text-decoration:none;border-bottom:1px dashed transparent;}
.mega-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink-900);transition:color .2s var(--ease);}
.mega-item span{display:block;font-size:13px;color:var(--ink-300);line-height:1.6;}
.mega-item:hover strong{color:var(--signal);}
.mega-item:hover{border-bottom-color:var(--line);}
.mega-card{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  text-decoration:none;display:block;background:var(--paper);
}
.mega-card .thumb{aspect-ratio:16/9;overflow:hidden;}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.mega-card:hover .thumb img{transform:scale(1.03);}
.mega-card .body{padding:14px 16px 16px;}
.mega-card .body strong{display:block;font-size:15px;color:var(--ink-900);margin-bottom:4px;}
.mega-card .body span{font-size:13px;color:var(--ink-300);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--paper-2);
  border-radius:var(--r-btn);position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.5px;background:var(--ink-900);
  transform:translateX(-50%);transition:transform .25s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;top:-6px;transform:none;}
.nav-toggle span::after{content:"";left:0;top:6px;transform:none;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:rotate(45deg);top:0;}
.nav-toggle.is-open span::after{transform:rotate(-45deg);top:0;}

/* ============ buttons ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);border:1px solid transparent;
  text-decoration:none;overflow:hidden;
  transition:color .26s var(--ease),border-color .26s var(--ease),transform .12s var(--ease);
  z-index:0;
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.btn:hover::before{transform:scaleX(1);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{color:#fff;}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line);}
.btn-ghost::before{background:var(--ink-900);}
.btn-ghost:hover{color:#fff;border-color:var(--ink-900);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink-900);font-size:15px;font-weight:600;text-decoration:none;
  padding-bottom:2px;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink-900);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}
.text-link .arrow{transition:transform .24s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ hero ============ */
.hero{
  padding:80px 0 88px;
  background:
    radial-gradient(900px 420px at 88% -10%, rgba(18,148,110,.10), transparent 70%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--ink-300);
  border:1px solid var(--line);border-radius:999px;padding:5px 14px;background:var(--paper-2);
  margin-bottom:22px;
}
.hero h1{margin-bottom:26px;}
.hero-rule{width:64px;height:3px;background:var(--signal);margin-bottom:24px;}
.hero-sub{font-size:18px;line-height:1.7;color:var(--ink-700);max-width:520px;margin-bottom:32px;}
.hero-cta{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;}
.hero-points li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ink-500);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:1.5px;background:var(--signal);
}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  transition:transform .5s var(--ease);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,17,19,.72),rgba(14,17,19,.28));
  pointer-events:none;
}
.hero-media-tag{
  position:absolute;left:24px;bottom:22px;z-index:2;color:#fff;
}
.hero-media-tag strong{display:block;font-family:var(--serif);font-size:20px;letter-spacing:-.01em;}
.hero-media-tag span{font-size:13px;color:rgba(255,255,255,.78);}
.hero-media:hover img{transform:scale(1.03);}

/* ============ kpi ============ */
.kpi{background:var(--ink-900);color:#fff;padding:72px 0;}
.kpi-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.kpi-item{padding:0 32px;border-left:1px solid rgba(255,255,255,.12);}
.kpi-item:first-child{border-left:0;padding-left:0;}
.kpi-mark{width:24px;height:2px;background:var(--signal);margin-bottom:20px;}
.kpi-num{
  font-family:var(--serif);
  font-size:clamp(44px,5vw,72px);line-height:1;font-weight:700;
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:#fff;
}
.kpi-label{display:block;margin-top:14px;font-size:15px;font-weight:600;color:#fff;}
.kpi-desc{display:block;margin-top:6px;font-size:13px;line-height:1.6;color:var(--ink-300);}
.kpi-spark{position:absolute;right:0;top:-16px;width:180px;height:64px;opacity:.85;}
.kpi-spark path{fill:none;stroke:var(--signal);stroke-width:1.6;stroke-linecap:round;}

/* ============ sections ============ */
.section{padding:var(--pad-section) 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:52px;}
.section-head h2{position:relative;padding-left:18px;margin-bottom:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--signal);
}
.section-head .lead{font-size:16px;line-height:1.85;color:var(--ink-500);}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ service matrix ============ */
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);}
.card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--ink-500);box-shadow:0 12px 28px rgba(14,17,19,.06);}
.card-num{
  font-family:var(--mono);font-size:13px;letter-spacing:.08em;color:var(--ink-300);
  display:block;margin-bottom:18px;
}
.icon-box{
  width:40px;height:40px;border:1.5px solid var(--ink-900);border-radius:var(--r-btn);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.icon-box svg{width:20px;height:20px;stroke:var(--ink-900);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.card:hover .icon-box{border-color:var(--signal);background:var(--signal-soft);}
.card:hover .icon-box svg{stroke:var(--signal);}
.card h3{margin-bottom:12px;}
.card p{font-size:15px;line-height:1.8;color:var(--ink-500);margin-bottom:20px;}
.svc-6{grid-column:span 6;}
.card-wide{
  grid-column:span 12;
  display:grid;grid-template-columns:1fr 40%;gap:0;padding:0;overflow:hidden;
}
.card-wide .wide-text{padding:36px 40px;display:flex;flex-direction:column;justify-content:center;}
.card-wide .wide-media{overflow:hidden;}
.card-wide .wide-media img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .4s var(--ease);}
.card-wide:hover .wide-media img{transform:scale(1.03);}

/* ============ compare ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);}
.compare-col{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
}
.compare-col.is-good{border-color:rgba(18,148,110,.4);}
.col-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.col-head h3{font-size:19px;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border:1px solid var(--line);border-radius:999px;
  font-size:12px;color:var(--ink-500);background:var(--paper);letter-spacing:.04em;
}
.badge-good{border-color:rgba(18,148,110,.45);color:var(--signal);background:var(--signal-soft);}
.badge-flare{border-color:rgba(212,112,58,.45);color:var(--flare);background:var(--flare-soft);}
.compare-list li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--ink-500);margin-bottom:12px;
}
.compare-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:1.5px;background:var(--ink-300);
}
.compare-col.is-good .compare-list li::before{background:var(--signal);}
.compare-bar{margin-top:32px;}
.bar-row{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;margin-bottom:16px;}
.bar-track{height:8px;background:var(--paper);border:1px solid var(--line);border-radius:999px;overflow:hidden;}
.bar-fill{height:100%;width:0;background:var(--ink-300);transition:width 1s var(--ease);}
.bar-fill.good{background:var(--signal);}
.bar-val{font-family:var(--mono);font-size:14px;color:var(--ink-700);font-variant-numeric:tabular-nums;}
.bar-label{font-size:14px;color:var(--ink-500);}

/* ============ narrative ============ */
.nar-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.nar-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.nar-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.nar-media:hover img{transform:scale(1.03);}
.nar-list{margin-top:8px;}
.nar-list li{
  padding:18px 0;border-top:1px solid var(--line);
}
.nar-list li:last-child{border-bottom:1px solid var(--line);}
.nar-list strong{display:block;font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.nar-list span{font-size:14px;line-height:1.75;color:var(--ink-500);}

/* ============ post list ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.post-card{
  display:flex;flex-direction:column;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;text-decoration:none;height:100%;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.post-card:hover{transform:translateY(-2px);border-color:var(--ink-500);box-shadow:0 12px 28px rgba(14,17,19,.06);}
.post-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-cover .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-card h3{font-size:18px;margin-bottom:10px;color:var(--ink-900);}
.clamp-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14px;line-height:1.8;color:var(--ink-500);margin-bottom:20px;}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);
}
.post-time{font-family:var(--mono);font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums;}
.post-read{font-size:14px;color:var(--ink-900);font-weight:600;}
.empty{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 24px;text-align:center;background:var(--paper-2);grid-column:1/-1;
}
.empty svg{width:36px;height:36px;stroke:var(--ink-300);fill:none;stroke-width:1.4;margin:0 auto 16px;}
.empty p{font-size:15px;color:var(--ink-300);margin-bottom:20px;}
.skeleton{
  background:linear-gradient(90deg,var(--line) 25%,#efece5 37%,var(--line) 63%);
  background-size:400% 100%;animation:breathe 1.6s infinite linear;border-radius:2px;
}
@keyframes breathe{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ============ faq ============ */
.faq-list{max-width:860px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 48px 22px 0;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:-16px;top:24px;bottom:24px;width:3px;background:var(--signal);
  opacity:0;transition:opacity .24s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"";position:absolute;right:10px;top:30px;width:11px;height:11px;
  border-right:1.5px solid var(--ink-500);border-bottom:1.5px solid var(--ink-500);
  transform:rotate(45deg);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(225deg);}
.faq-item summary:hover{color:var(--signal);}
.faq-body{padding:0 48px 24px 0;font-size:15px;line-height:1.8;color:var(--ink-500);}
.faq-body p{margin-bottom:.9em;}

/* ============ form ============ */
.form-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:var(--gap);align-items:start;}
.form-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;box-shadow:0 20px 40px rgba(14,17,19,.05);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px;}
.field .req{color:var(--flare);}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 14px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:15px;color:var(--ink-900);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:132px;padding:14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--signal);background:var(--paper-2);outline:none;
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300);}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-500);margin-bottom:24px;}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--signal);flex:0 0 18px;}
.alert{
  display:none;margin-top:20px;padding:14px 18px;font-size:14px;border-radius:var(--r-card);
}
.alert.is-show{display:block;}
.alert-ok{background:var(--signal-soft);border-left:3px solid var(--signal);color:var(--ink-700);}
.alert-err{background:var(--flare-soft);border-left:3px solid var(--flare);color:var(--ink-700);}
.trust-list li{padding:18px 0;border-top:1px solid var(--line);}
.trust-list li:last-child{border-bottom:1px solid var(--line);}
.trust-list strong{display:block;font-size:16px;color:var(--ink-900);margin-bottom:6px;}
.trust-list span{font-size:14px;line-height:1.75;color:var(--ink-500);}

/* ============ footer ============ */
.site-footer{background:var(--ink-900);color:#B9C0C6;padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;}
.foot-brand .logo{color:#fff;margin-bottom:18px;}
.foot-brand .logo-mark{background:var(--signal);color:#fff;}
.foot-brand p{font-size:14px;line-height:1.8;color:#8F989F;max-width:280px;}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.foot-col li{margin-bottom:12px;}
.foot-col a{
  color:#B9C0C6;text-decoration:none;font-size:14px;position:relative;
  transition:color .2s var(--ease);
}
.foot-col a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--signal);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.foot-col a:hover{color:var(--signal);}
.foot-col a:hover::after{transform:scaleX(1);}
.foot-col .plain{font-size:14px;color:#B9C0C6;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8F989F;
}
.foot-bottom a{color:#8F989F;text-decoration:none;}
.foot-bottom a:hover{color:var(--signal);}

/* ============ pagination / states ============ */
.pagination{display:flex;gap:8px;flex-wrap:wrap;margin-top:40px;}
.pagination a,.pagination span{
  min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);font-size:14px;
  color:var(--ink-700);text-decoration:none;background:var(--paper-2);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.pagination a:hover{border-color:var(--ink-900);color:var(--ink-900);}
.pagination .is-current{background:var(--ink-900);border-color:var(--ink-900);color:#fff;}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(16px);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;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ responsive ============ */
@media (max-width:1280px){
  .hero-grid{gap:40px;}
  .mega-panel{width:760px;}
}
@media (max-width:1024px){
  :root{--pad-section:72px;--gap:24px;}
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper-2);border-bottom:1px solid var(--line);
    padding:12px 24px 24px;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    max-height:calc(100vh - 72px);overflow:auto;margin-left:0;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none;}
  .nav-link{padding:14px 4px;border-bottom:1px solid var(--line);}
  .nav-link::after{left:4px;right:auto;width:38px;bottom:8px;}
  .mega-panel{
    position:static;width:100%;max-width:none;box-shadow:none;
    grid-template-columns:1fr;gap:20px;padding:20px;margin-top:12px;
  }
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{aspect-ratio:16/9;}
  .kpi-inner{grid-template-columns:1fr 1fr;gap:32px 0;}
  .kpi-item{padding:0 24px;}
  .kpi-item:nth-child(odd){border-left:0;padding-left:0;}
  .kpi-item:nth-child(3){border-left:0;padding-left:0;}
  .svc-6{grid-column:span 12;}
  .compare-grid{grid-template-columns:1fr;}
  .nar-grid{grid-template-columns:1fr;gap:36px;}
  .post-grid{grid-template-columns:1fr 1fr;}
  .form-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--pad-section:56px;--gap:16px;}
  .container{padding:0 18px;}
  h1{font-size:clamp(28px,7.4vw,38px);}
  .hero{padding:56px 0 64px;}
  .hero-cta{gap:16px;}
  .kpi{padding:56px 0;}
  .kpi-inner{grid-template-columns:1fr 1fr;}
  .card-wide{grid-template-columns:1fr;}
  .card-wide .wide-media img{min-height:200px;}
  .post-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .form-row{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;padding-bottom:40px;}
  .section-head{margin-bottom:36px;}
  .faq-item summary{padding-right:36px;font-size:16px;}
  .faq-item summary::before{left:-10px;}
  .faq-body{padding-right:0;}
}
@media (max-width:480px){
  .hero-cta .btn{width:100%;}
  .hero-points{gap:10px 18px;}
  .kpi-inner{grid-template-columns:1fr;gap:28px;}
  .kpi-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:22px;}
  .kpi-item:first-child{border-top:0;padding-top:0;}
  .card{padding:22px;}
  .compare-col{padding:22px;}
  .foot-bottom{justify-content:flex-start;}
}

/* roulang page: article */
:root{
  --ink-900:#0E1113;
  --ink-700:#1F262B;
  --ink-500:#3A444C;
  --ink-300:#6B767F;
  --line:#E3DED4;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --signal:#12946E;
  --signal-dark:#0D7355;
  --flare:#D4703A;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --r-s:2px;
  --r-m:4px;
  --container:1240px;
  --shadow-mega:0 20px 40px rgba(14,17,19,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-500);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}
button:active,.btn:active{transform:translateY(1px);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.90);
  box-shadow:0 8px 24px rgba(14,17,19,.06);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink-900);white-space:nowrap;
}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border:1px solid var(--ink-900);border-radius:var(--r-s);
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:0;
  color:var(--ink-900);background:var(--paper-2);
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink-700);
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--signal);transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink-900);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--paper-2);cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink-900);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ink-900);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--paper-2);color:var(--ink-700);font-size:14px;cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.mega-trigger:hover{border-color:var(--ink-500);color:var(--ink-900);}
.caret{
  width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translate(-1px,-1px);transition:transform .24s var(--ease);
}
.mega-wrap.is-open .caret{transform:rotate(-135deg) translate(-2px,-2px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:880px;
  display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:26px;
  padding:28px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--shadow-mega);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{
  font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--ink-300);text-transform:uppercase;margin-bottom:14px;
}
.mega-item{
  display:block;padding:10px 12px;border-radius:var(--r-s);
  border-left:2px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.mega-item:hover{background:var(--paper);border-left-color:var(--signal);}
.mega-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink-900);}
.mega-item span{display:block;font-size:13px;color:var(--ink-300);line-height:1.6;margin-top:2px;}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  background:var(--paper);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.mega-card:hover{border-color:var(--ink-500);transform:translateY(-2px);}
.mega-card .thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.mega-card:hover .thumb img{transform:scale(1.03);}
.mega-card .bo{padding:14px 16px 18px;}
.mega-card .bo strong{display:block;font-size:15px;color:var(--ink-900);}
.mega-card .bo span{display:block;font-size:13px;color:var(--ink-300);line-height:1.6;margin-top:4px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--paper-2);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-300);}
.crumb a{color:var(--ink-300);transition:color .22s var(--ease);}
.crumb a:hover{color:var(--signal);}
.crumb .sep{color:var(--line);}
.crumb .cur{color:var(--ink-500);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  background-image:linear-gradient(180deg,rgba(246,244,239,.94),rgba(246,244,239,.88)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--ink-300);text-transform:uppercase;
  margin-bottom:16px;
}
.article-hero .kicker::before{content:"";width:24px;height:2px;background:var(--signal);}
.article-hero h1{font-size:clamp(28px,3.4vw,44px);line-height:1.24;max-width:900px;}
.hero-rule{width:64px;height:3px;background:var(--signal);margin:24px 0 22px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--ink-300);}
.meta-row .cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:var(--paper-2);
  color:var(--ink-700);font-size:12px;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.meta-row .mono{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.meta-row .author{color:var(--ink-500);}

/* ---------- 正文 ---------- */
.article-section{padding:64px 0 24px;}
.article-body{
  max-width:720px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--ink-500);
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);line-height:1.35;margin:2.2em 0 .8em;
  padding-left:14px;border-left:3px solid var(--signal);
}
.article-body h3{font-size:21px;line-height:1.4;margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;line-height:1.5;margin:1.6em 0 .5em;font-family:var(--sans);}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 1.4em;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 24px;border-left:3px solid var(--line);
  background:var(--paper-2);border-radius:var(--r-m);
  font-family:var(--serif);color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:1.6em auto;border-radius:var(--r-m);}
.article-body a{color:var(--signal);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--signal-dark);}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--paper);color:var(--ink-900);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:720px;margin:0 auto;padding:56px 28px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-m);background:var(--paper-2);
}
.empty-state .ic{
  width:44px;height:44px;margin:0 auto 18px;border:1.5px solid var(--ink-300);border-radius:50%;
  position:relative;
}
.empty-state .ic::before{
  content:"";position:absolute;left:11px;top:21px;width:20px;height:1.5px;background:var(--ink-300);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-300);margin-bottom:22px;}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 30px;border:1px solid transparent;border-radius:var(--r-s);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;overflow:hidden;
  transition:color .26s var(--ease),border-color .26s var(--ease);
}
.btn::before{
  content:"";position:absolute;inset:0;width:0;background:var(--signal);
  transition:width .26s var(--ease);z-index:0;
}
.btn>*{position:relative;z-index:1;}
.btn:hover::before{width:100%;}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{color:#fff;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{color:#fff;border-color:var(--signal);}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--signal);
  position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:var(--signal);
  transition:width .24s var(--ease);
}
.link-arrow:hover::after{width:100%;}
.link-arrow .arw{transition:transform .24s var(--ease);}
.link-arrow:hover .arw{transform:translateX(4px);}

/* ---------- 相关推荐 ---------- */
.related-section{padding:64px 0 80px;border-top:1px solid var(--line);margin-top:56px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.sec-head h2{font-size:clamp(24px,2.4vw,32px);}
.sec-head .sub{margin-top:10px;font-size:15px;color:var(--ink-300);max-width:620px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.post-card{
  display:flex;flex-direction:column;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.post-card:hover{transform:translateY(-2px);border-color:var(--ink-500);}
.post-card .cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.post-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .cover img{transform:scale(1.03);}
.post-card .badge{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;
  display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.92);font-size:12px;color:var(--ink-700);
}
.post-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-card h3{
  font-size:18px;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:14px;line-height:1.75;color:var(--ink-300);margin-bottom:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-300);
}
.post-card .foot .mono{font-variant-numeric:tabular-nums;}

/* ---------- 文末 CTA ---------- */
.cta-section{padding:0 0 96px;}
.cta-card{
  display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center;
  padding:52px 56px;background:var(--ink-900);border-radius:var(--r-m);
  background-image:linear-gradient(120deg,rgba(14,17,19,.96),rgba(14,17,19,.82)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
}
.cta-card h2{color:#fff;font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
.cta-card p{color:#B9C1C6;font-size:15px;line-height:1.8;margin-top:14px;max-width:520px;}
.cta-card .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-card .btn-primary{background:var(--signal);}
.cta-card .btn-primary::before{background:#fff;}
.cta-card .btn-primary:hover{color:var(--ink-900);}
.cta-card .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff;}
.cta-list{display:flex;flex-direction:column;gap:18px;}
.cta-list li{
  display:flex;gap:12px;align-items:flex-start;
  color:#E7E9EA;font-size:14px;line-height:1.75;padding-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.cta-list li:last-child{border-bottom:0;padding-bottom:0;}
.cta-list .num{
  flex:none;font-variant-numeric:tabular-nums;color:var(--signal);font-weight:700;font-size:13px;
  letter-spacing:.06em;padding-top:2px;
}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;justify-content:center;padding:0 0 56px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#B9C1C6;padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.foot-brand .logo{color:#fff;}
.foot-brand .logo-mark{border-color:rgba(255,255,255,.4);background:transparent;color:#fff;}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:#8E989F;max-width:320px;}
.foot-col h4{
  font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.14em;
  color:#fff;text-transform:uppercase;margin-bottom:18px;
}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a,.foot-col .plain{position:relative;font-size:14px;color:#B9C1C6;}
.foot-col a{display:inline-block;transition:color .22s var(--ease);}
.foot-col a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--signal);
  transition:width .24s var(--ease);
}
.foot-col a:hover{color:var(--signal);}
.foot-col a:hover::after{width:100%;}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#7C868D;
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .mega-panel{width:760px;grid-template-columns:1fr 1fr;gap:22px;}
  .mega-panel .mega-col:last-child{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-card{grid-template-columns:1fr;padding:44px 36px;gap:34px;}
  .mega-panel{
    position:absolute;right:0;left:auto;width:min(680px,calc(100vw - 48px));
    grid-template-columns:1fr 1fr;
  }
  .mega-panel .mega-col:last-child{grid-column:1 / -1;}
}
@media (max-width:768px){
  .nav-wrap{height:64px;gap:14px;}
  .logo{font-size:17px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--paper-2);border-bottom:1px solid var(--line);
    padding:8px 24px 16px;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;}
  .nav-link:last-child{border-bottom:0;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--signal);}
  .mega-panel{
    position:absolute;left:auto;right:0;top:calc(100% + 10px);
    width:min(420px,calc(100vw - 32px));
    grid-template-columns:1fr;padding:20px;
  }
  .mega-panel .mega-col:last-child{display:none;}
  .article-hero{padding:36px 0 32px;}
  .article-section{padding:44px 0 16px;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .related-section{padding:48px 0 64px;margin-top:40px;}
  .card-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-section{padding-bottom:64px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-hero h1{font-size:26px;}
  .meta-row{gap:8px 14px;}
  .article-body{font-size:16px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .cta-card{padding:34px 22px;}
  .cta-card .actions .btn{width:100%;}
  .btn{height:48px;padding:0 22px;font-size:14px;}
  .foot-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0E1113;
  --ink-700:#1F262B;
  --ink-500:#3A444C;
  --ink-300:#6B767F;
  --line:#E3DED4;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --signal:#12946E;
  --signal-dark:#0d7355;
  --flare:#D4703A;
  --radius-btn:2px;
  --radius-card:4px;
  --shadow-panel:0 20px 40px rgba(14,17,19,.10);
  --container:1240px;
  --font-title:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",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(--ink-500);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--signal);text-decoration:underline;text-underline-offset:3px;}
a:hover{color:var(--signal-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-family:var(--font-title);font-weight:700;}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.12;letter-spacing:-.02em;}
h2{font-size:clamp(26px,2.8vw,38px);line-height:1.2;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;font-family:var(--font-body);}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section-tight{padding:72px 0;}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--ink-300);margin-bottom:14px;}
.sec-head{max-width:760px;margin-bottom:32px;}
.sec-lead{color:var(--ink-500);font-size:16px;margin-top:14px;}
.title-rule{position:relative;padding-left:16px;}
.title-rule::before{content:"";position:absolute;left:0;top:.18em;width:3px;height:.82em;background:var(--signal);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(6px);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,17,19,.07);background:rgba(246,244,239,.98);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);
  font-family:var(--font-title);font-weight:700;font-size:17px;letter-spacing:-.01em;
  text-decoration:none;white-space:nowrap;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border:1px solid var(--ink-900);border-radius:2px;
  font-size:13px;letter-spacing:.02em;color:var(--ink-900);
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;color:var(--ink-700);text-decoration:none;font-size:15px;padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--signal);
  transition:width .26s ease;
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink-900);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);background:var(--paper-2);border-radius:var(--radius-btn);
  color:var(--ink-700);font-size:14px;transition:border-color .2s ease,color .2s ease;
}
.mega-trigger:hover{border-color:var(--ink-500);color:var(--ink-900);}
.caret{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .24s ease;}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(225deg) translateY(-1px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:880px;max-width:calc(100vw - 48px);
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-panel);padding:28px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;letter-spacing:.12em;color:var(--ink-300);font-weight:600;margin-bottom:14px;text-transform:none;}
.mega-item{display:block;padding:10px 0;border-bottom:1px dashed var(--line);text-decoration:none;}
.mega-item:last-child{border-bottom:0;}
.mega-item strong{display:block;color:var(--ink-900);font-size:15px;font-weight:600;}
.mega-item span{display:block;font-size:13px;color:var(--ink-300);margin-top:2px;}
.mega-item:hover strong{color:var(--signal);}
.mega-card{
  display:block;text-decoration:none;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:var(--paper);
}
.mega-card .thumb{display:block;overflow:hidden;aspect-ratio:16/9;}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.mega-card:hover img{transform:scale(1.03);}
.mega-card .body{display:block;padding:14px 16px;}
.mega-card strong{display:block;color:var(--ink-900);font-size:15px;}
.mega-card .body span{display:block;font-size:13px;color:var(--ink-300);margin-top:4px;}
.nav-toggle{
  display:none;width:42px;height:40px;border:1px solid var(--line);background:var(--paper-2);
  border-radius:var(--radius-btn);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink-900);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ink-900);}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;overflow:hidden;isolation:isolate;
  transition:color .26s ease,border-color .26s ease,transform .12s ease;
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;background:var(--signal);
  transform:translateX(-101%);transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.btn:hover::before{transform:translateX(0);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink-900);color:#fff;}
.btn-primary:hover{color:#fff;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{color:#fff;border-color:var(--signal);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;text-decoration:none;color:var(--signal);position:relative;}
.link-arrow .arw{transition:transform .24s ease;}
.link-arrow:hover .arw{transform:translateX(4px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(14,17,19,.82),rgba(14,17,19,.58)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero .container{padding-top:88px;padding-bottom:88px;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.8);text-decoration:none;}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{color:rgba(255,255,255,.4);}
.crumb .cur{color:rgba(255,255,255,.95);}
.page-hero h1{color:#fff;max-width:900px;}
.page-hero .hero-rule{width:64px;height:3px;background:var(--signal);margin:24px 0 22px;}
.page-hero .hero-sub{max-width:640px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.9;margin:0 0 30px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;}
.hero-actions .btn-ghost{border-color:rgba(255,255,255,.36);color:#fff;}
.hero-actions .btn-ghost:hover{border-color:var(--signal);}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);font-size:13px;color:rgba(255,255,255,.86);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);}

/* ---------- category layout: index + content ---------- */
.cat-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:56px;align-items:start;}
.cat-index{position:sticky;top:96px;}
.cat-index .index-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper-2);padding:22px;
}
.cat-index h4{font-size:13px;letter-spacing:.12em;color:var(--ink-300);margin-bottom:14px;font-weight:600;}
.index-list a{
  display:block;padding:10px 12px;border-left:2px solid transparent;text-decoration:none;
  color:var(--ink-500);font-size:14px;transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.index-list a:hover{color:var(--ink-900);background:var(--paper);}
.index-list a.is-current{color:var(--ink-900);font-weight:600;border-left-color:var(--signal);background:var(--paper);}
.index-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-300);line-height:1.7;}

.sec-block{margin-bottom:72px;scroll-margin-top:96px;}
.sec-block:last-child{margin-bottom:0;}
.block-lead{max-width:720px;margin-top:14px;color:var(--ink-500);}

.media-row{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;align-items:center;margin-top:30px;}
.media-row.reverse{grid-template-columns:340px minmax(0,1fr);}
.media-row.reverse .media-text{order:2;}
.media-row.reverse .media-figure{order:1;}
.media-figure{overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--paper);}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.media-figure:hover img{transform:scale(1.03);}

.point-list{margin-top:20px;display:grid;gap:14px;}
.point-list li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-500);}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:2px;background:var(--signal);
}

.step-list{display:grid;gap:0;margin-top:32px;border-top:1px solid var(--line);}
.step-item{display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;padding:24px 0;border-bottom:1px solid var(--line);}
.step-item .num{
  font-family:var(--font-title);font-size:22px;color:var(--signal);font-weight:700;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.step-item h4{margin-bottom:6px;}
.step-item p{font-size:15px;margin:0;}

.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px;}
.info-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper-2);
  padding:26px;transition:transform .24s ease,border-color .24s ease;
}
.info-card:hover{transform:translateY(-2px);border-color:var(--ink-500);}
.info-card .tag{
  display:inline-block;padding:4px 12px;border-radius:999px;border:1px solid var(--line);
  font-size:12px;color:var(--ink-300);margin-bottom:14px;
}
.info-card h3{font-size:18px;margin-bottom:10px;}
.info-card p{font-size:14.5px;margin:0;}

/* ---------- compare ---------- */
.compare{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:34px;}
.compare-col{border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;background:var(--paper);}
.compare-col .badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;border:1px solid var(--line);color:var(--ink-300);margin-bottom:18px;
}
.compare-col.is-after .badge{border-color:var(--signal);color:var(--signal);}
.compare-col h3{margin-bottom:16px;font-size:19px;}
.compare-col ul{display:grid;gap:12px;}
.compare-col li{position:relative;padding-left:20px;font-size:15px;}
.compare-col li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:2px;background:var(--ink-300);}
.compare-col.is-after li::before{background:var(--signal);}
.bar-row{margin-top:34px;display:grid;gap:18px;}
.bar-item .bar-top{display:flex;justify-content:space-between;font-size:14px;margin-bottom:8px;}
.bar-item .bar-top b{font-variant-numeric:tabular-nums;color:var(--ink-900);}
.bar-track{height:8px;border-radius:999px;background:var(--line);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--ink-300);width:0;transition:width 1s cubic-bezier(.22,.61,.36,1);}
.bar-fill.is-signal{background:var(--signal);}

/* ---------- faq ---------- */
.faq-list{margin-top:30px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:20px 44px 20px 18px;
  font-size:17px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:22px;width:3px;height:20px;background:var(--signal);
  opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--ink-300);transition:transform .24s ease,color .24s ease;
}
.faq-item[open] summary::after{content:"−";color:var(--signal);}
.faq-body{padding:0 44px 22px 18px;font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ---------- cta / form ---------- */
.cta-band{background:var(--ink-900);color:rgba(255,255,255,.72);}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:56px;align-items:start;}
.cta-band h2{color:#fff;}
.cta-band .sec-lead{color:rgba(255,255,255,.72);}
.trust-list{margin-top:28px;display:grid;gap:16px;}
.trust-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;font-size:15px;color:rgba(255,255,255,.78);}
.trust-list .mk{width:20px;height:20px;border:1px solid rgba(255,255,255,.4);border-radius:2px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:var(--signal);margin-top:2px;}
.form-card{background:var(--paper-2);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-panel);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:grid;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px;color:var(--ink-300);}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--paper);color:var(--ink-900);transition:border-color .2s ease,background .2s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--signal);outline:none;background:#fff;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-500);}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--signal);}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-note{font-size:12.5px;color:var(--ink-300);}
.notice{grid-column:1/-1;display:none;padding:12px 14px;font-size:14px;border-radius:var(--radius-btn);}
.notice.ok{display:block;background:rgba(18,148,110,.08);border-left:3px solid var(--signal);color:var(--signal-dark);}
.notice.err{display:block;background:rgba(212,112,58,.08);border-left:3px solid var(--flare);color:var(--flare);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.66);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.foot-brand .logo{color:#fff;margin-bottom:16px;}
.foot-brand .logo-mark{border-color:rgba(255,255,255,.5);color:#fff;}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.06em;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{color:rgba(255,255,255,.66);text-decoration:none;font-size:14px;position:relative;}
.foot-col a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--signal);transition:width .24s ease;}
.foot-col a:hover{color:var(--signal);}
.foot-col a:hover::after{width:100%;}
.foot-col .plain{font-size:14px;color:rgba(255,255,255,.6);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- states ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);padding:52px 24px;text-align:center;
  color:var(--ink-300);background:var(--paper-2);
}
.empty-state .ph{width:40px;height:40px;border:1px solid var(--line);border-radius:4px;margin:0 auto 14px;}
.skeleton{background:var(--line);border-radius:4px;animation:breathe 1.6s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.5}}

.fade-up{opacity:0;transform:translateY(16px);}
.fade-up.is-in{opacity:1;transform:none;transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}

@media (max-width:1280px){
  .container{padding:0 24px;}
  .cat-layout{grid-template-columns:220px minmax(0,1fr);gap:36px;}
  .mega-panel{width:720px;grid-template-columns:1fr 1fr;}
  .mega-panel .mega-col:last-child{grid-column:1/-1;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .nav-wrap{gap:16px;}
  .main-nav{display:none;position:absolute;left:0;right:0;top:72px;background:var(--paper-2);
    border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 18px;margin:0;}
  .main-nav.is-open{display:flex;}
  .nav-link{width:100%;padding:12px 0;border-bottom:1px dashed var(--line);}
  .nav-link::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .mega-panel{position:fixed;left:24px;right:24px;top:80px;width:auto;max-width:none;grid-template-columns:1fr;}
  .cat-layout{grid-template-columns:1fr;}
  .cat-index{position:static;}
  .cat-index .index-card{padding:18px;}
  .index-list{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px;}
  .media-row,.media-row.reverse{grid-template-columns:1fr;gap:24px;}
  .media-row.reverse .media-text{order:1;}
  .media-row.reverse .media-figure{order:2;}
  .compare-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .page-hero .container{padding-top:64px;padding-bottom:64px;}
  .page-hero .hero-sub{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .form-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .index-list{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .btn{height:48px;}
  .form-card{padding:20px;}
  .faq-item summary{font-size:16px;padding-right:36px;}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0E1113;
  --ink-700:#1F262B;
  --ink-500:#3A444C;
  --ink-300:#6B767F;
  --line:#E3DED4;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --signal:#12946E;
  --signal-soft:rgba(18,148,110,.08);
  --flare:#D4703A;
  --flare-soft:rgba(212,112,58,.08);
  --radius-btn:2px;
  --radius-card:4px;
  --radius-pill:999px;
  --shadow-panel:0 20px 40px rgba(14,17,19,.10);
  --font-head:"Noto Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sp-section:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-500);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--signal);text-decoration:underline;text-underline-offset:3px;transition:color .24s ease;}
a:hover{color:var(--ink-900);}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink-900);margin:0;letter-spacing:-.01em;}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.12;font-weight:700;letter-spacing:-.02em;}
h2{font-size:clamp(26px,2.8vw,38px);line-height:1.2;font-weight:700;}
h3{font-size:21px;line-height:1.4;font-weight:600;font-family:var(--font-body);}
h4{font-size:17px;line-height:1.5;font-weight:600;font-family:var(--font-body);}
p{margin:0 0 1.4em;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(6px);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled{background:rgba(246,244,239,.96);box-shadow:0 8px 24px rgba(14,17,19,.06);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-head);font-size:19px;font-weight:700;
  color:var(--ink-900);text-decoration:none;letter-spacing:-.01em;white-space:nowrap;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  display:inline-grid;place-items:center;width:30px;height:30px;
  background:var(--ink-900);color:var(--paper);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:0;
  border-radius:var(--radius-card);flex:0 0 auto;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;color:var(--ink-700);text-decoration:none;font-size:15px;
  padding:6px 0;white-space:nowrap;transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink-900);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--paper-2);color:var(--ink-700);font-size:14px;
  transition:border-color .22s ease,color .22s ease,background .22s ease;
}
.mega-trigger:hover{border-color:var(--ink-500);color:var(--ink-900);}
.caret{
  width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-1px);transition:transform .22s ease;
}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(-135deg) translateY(-1px);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:880px;max-width:calc(100vw - 48px);
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-panel);padding:26px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.mega-col h4{font-size:13px;color:var(--ink-300);letter-spacing:.06em;margin-bottom:12px;font-weight:600;}
.mega-item{display:block;padding:9px 0;text-decoration:none;border-bottom:1px dashed var(--line);}
.mega-item:last-child{border-bottom:0;}
.mega-item strong{display:block;color:var(--ink-900);font-size:15px;font-weight:600;}
.mega-item span{display:block;color:var(--ink-300);font-size:13px;line-height:1.6;}
.mega-item:hover strong{color:var(--signal);}
.mega-card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper);}
.mega-card .thumb{display:block;overflow:hidden;aspect-ratio:16/9;}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.mega-card:hover .thumb img{transform:scale(1.03);}
.mega-card .body{display:block;padding:14px 16px;}
.mega-card .body strong{display:block;color:var(--ink-900);font-size:15px;}
.mega-card .body span{display:block;color:var(--ink-300);font-size:13px;}
.nav-toggle{display:none;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:calc(100% - .44em);
  background:var(--signal);
}
.section-head p{margin:12px 0 0;color:var(--ink-300);}
.lead{font-size:17px;color:var(--ink-500);max-width:760px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--ink-300);line-height:1.6;
}
.breadcrumb a{color:var(--ink-300);text-decoration:none;}
.breadcrumb a:hover{color:var(--signal);text-decoration:underline;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-500);}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero .hero-bg{position:absolute;inset:0;}
.page-hero .hero-bg img{width:100%;height:100%;object-fit:cover;}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,17,19,.86),rgba(14,17,19,.62));
}
.page-hero .hero-inner{position:relative;z-index:2;padding:96px 0 88px;max-width:820px;}
.page-hero .breadcrumb a{color:rgba(246,244,239,.7);}
.page-hero .breadcrumb .sep{color:rgba(246,244,239,.35);}
.page-hero .breadcrumb .current{color:rgba(246,244,239,.9);}
.page-hero h1{color:#fff;margin:22px 0 0;}
.page-hero .hero-sub{color:rgba(246,244,239,.86);font-size:18px;line-height:1.75;margin:20px 0 0;max-width:640px;}
.hero-rule{width:64px;height:3px;background:var(--signal);margin-top:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border:1px solid rgba(246,244,239,.32);border-radius:var(--radius-pill);
  color:rgba(246,244,239,.88);font-size:13px;letter-spacing:.01em;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:34px;}
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;padding:0 30px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;border:1px solid transparent;
  overflow:hidden;isolation:isolate;transition:color .26s ease,border-color .26s ease,transform .12s ease;
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;transform:translateX(-101%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.btn:hover::before{transform:translateX(0);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--ink-900);color:var(--paper);border-color:var(--ink-900);}
.btn-primary::before{background:var(--signal);}
.btn-primary:hover{color:#fff;border-color:var(--signal);}
.btn-light{background:var(--paper-2);color:var(--ink-900);border-color:var(--paper-2);}
.btn-light::before{background:var(--signal);}
.btn-light:hover{color:#fff;border-color:var(--signal);}
.btn-outline{background:transparent;color:var(--ink-900);border-color:var(--line);}
.btn-outline::before{background:var(--ink-900);}
.btn-outline:hover{color:var(--paper);border-color:var(--ink-900);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--signal);text-decoration:none;font-size:15px;font-weight:600;
}
.link-arrow .arw{transition:transform .24s ease;}
.link-arrow:hover .arw{transform:translateX(4px);}
.link-arrow:hover{color:var(--ink-900);}

/* ============ 步骤条 ============ */
.steps-band{background:var(--paper-2);border-bottom:1px solid var(--line);}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);}
.step{
  position:relative;padding:30px 22px 34px 0;
  border-right:1px solid var(--line);
}
.step:last-child{border-right:0;padding-right:0;}
.step .num{
  font-family:var(--font-mono);font-size:13px;color:var(--ink-300);letter-spacing:.08em;
}
.step .bar{width:24px;height:2px;background:var(--signal);margin:12px 0 14px;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-300);margin:0;line-height:1.7;}

/* ============ 全宽图文 ============ */
.feature{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;padding:64px 0;border-bottom:1px solid var(--line);}
.feature:last-of-type{border-bottom:0;}
.feature.reverse{grid-template-columns:7fr 5fr;}
.feature.reverse .feature-media{order:2;}
.feature-media{position:relative;overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-body h3{font-family:var(--font-head);font-size:26px;font-weight:700;margin-bottom:16px;}
.feature-body p{color:var(--ink-500);margin-bottom:1.2em;}
.feature-body p:last-of-type{margin-bottom:0;}
.point-list{margin-top:22px;border-top:1px solid var(--line);}
.point-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-700);
}
.point-list li .idx{
  font-family:var(--font-mono);font-size:12px;color:var(--ink-300);
  padding-top:4px;flex:0 0 auto;
}

/* ============ 自查清单 ============ */
.check-panel{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 28px;}
.check-item{
  display:grid;grid-template-columns:1.1fr 1fr auto;gap:20px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:0;}
.check-item h4{margin-bottom:4px;}
.check-item .note{font-size:13px;color:var(--ink-300);line-height:1.65;}
.meter{width:220px;max-width:100%;}
.meter .track{height:6px;background:var(--line);border-radius:var(--radius-pill);overflow:hidden;}
.meter .fill{display:block;height:100%;background:var(--signal);border-radius:var(--radius-pill);width:0;transition:width 1.1s cubic-bezier(.22,.61,.36,1);}
.meter .val{
  display:block;text-align:right;font-family:var(--font-mono);font-size:13px;
  color:var(--ink-700);font-variant-numeric:tabular-nums;margin-top:8px;
}
.badge{
  display:inline-flex;align-items:center;padding:3px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line);font-size:12px;color:var(--ink-300);letter-spacing:.02em;
}
.badge--a{background:var(--paper);}
.badge--b{border-color:var(--signal);color:var(--signal);background:var(--signal-soft);}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);background:transparent;transition:background .24s ease;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:-14px;top:24px;width:3px;height:22px;
  background:var(--signal);opacity:0;transition:opacity .24s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary .sign{
  flex:0 0 auto;width:18px;height:18px;position:relative;
  transition:transform .28s ease;
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;background:var(--ink-500);border-radius:1px;
}
.faq-item summary .sign::before{left:0;top:8px;width:18px;height:1.6px;}
.faq-item summary .sign::after{top:0;left:8px;height:18px;width:1.6px;}
.faq-item[open] summary .sign{transform:rotate(45deg);}
.faq-item .faq-answer{padding:0 44px 24px 4px;font-size:15px;line-height:1.8;color:var(--ink-500);}
.faq-item .faq-answer p{margin:0 0 1em;}
.faq-item .faq-answer p:last-child{margin-bottom:0;}

/* ============ CTA ============ */
.cta-band{background:var(--ink-900);color:rgba(246,244,239,.82);}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:start;}
.cta-band h2{color:#fff;}
.cta-band .cta-sub{color:rgba(246,244,239,.72);margin-top:14px;font-size:15px;}
.trust-list{margin-top:28px;border-top:1px solid rgba(246,244,239,.16);}
.trust-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid rgba(246,244,239,.16);
  font-size:15px;color:rgba(246,244,239,.86);
}
.trust-list .dot{
  flex:0 0 auto;width:8px;height:8px;margin-top:9px;background:var(--signal);
  border-radius:50%;
}
.form-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;color:var(--ink-500);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.col-span{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--ink-700);font-weight:600;letter-spacing:.01em;}
.field input,.field select,.field textarea{
  height:52px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--paper);color:var(--ink-900);
  transition:border-color .22s ease,background .22s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--signal);background:var(--paper-2);
}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-300);line-height:1.7;}
.checkline input{width:16px;height:16px;margin-top:4px;flex:0 0 auto;accent-color:var(--signal);}
.form-card .btn{width:100%;margin-top:6px;}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;font-size:14px;line-height:1.7;
  border-left:3px solid var(--signal);background:var(--signal-soft);color:var(--ink-700);
}
.form-msg.is-error{border-left-color:var(--flare);background:var(--flare-soft);}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(246,244,239,.7);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.foot-brand .logo{color:#fff;margin-bottom:16px;}
.foot-brand .logo .logo-mark{background:var(--signal);color:#fff;}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(246,244,239,.62);margin:0;max-width:300px;}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.04em;}
.foot-col ul li{padding:6px 0;}
.foot-col a{
  color:rgba(246,244,239,.7);text-decoration:none;font-size:14px;
  background-image:linear-gradient(var(--signal),var(--signal));
  background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;
  transition:color .24s ease,background-size .24s ease;
}
.foot-col a:hover{color:var(--signal);background-size:100% 1px;}
.foot-col .plain{font-size:14px;color:rgba(246,244,239,.62);}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0;border-top:1px solid rgba(246,244,239,.14);
  font-size:13px;color:rgba(246,244,239,.5);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 空态 / 加载态 ============ */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:var(--paper-2);
}
.empty-state .icon{
  width:44px;height:44px;margin:0 auto 14px;border:1.5px solid var(--ink-300);
  border-radius:var(--radius-card);position:relative;opacity:.6;
}
.empty-state .icon::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:1.5px;
  background:var(--ink-300);transform:translate(-50%,-50%);
}
.empty-state p{color:var(--ink-300);font-size:14px;margin:0 0 18px;}
.skeleton{background:var(--line);border-radius:var(--radius-card);animation:breathe 1.6s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.55;}50%{opacity:1;}}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  :root{--sp-section:88px;}
  .feature{gap:42px;}
}
@media (max-width:1024px){
  :root{--sp-section:72px;}
  .container{padding:0 24px;}
  .nav-wrap{gap:18px;}
  .main-nav{gap:18px;}
  .nav-link{font-size:14px;}
  .mega-panel{position:fixed;left:16px;right:16px;top:78px;width:auto;max-width:none;grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:24px 0 26px;}
  .step:nth-child(2n){padding-left:22px;border-left:1px solid var(--line);}
  .feature,.feature.reverse{grid-template-columns:1fr;gap:28px;}
  .feature.reverse .feature-media{order:0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--sp-section:56px;}
  .nav-toggle{
    display:inline-flex;align-items:center;gap:8px;margin-left:auto;
    padding:9px 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
    background:var(--paper-2);font-size:14px;color:var(--ink-700);
  }
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:72px;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--paper-2);border-bottom:1px solid var(--line);
    padding:8px 24px 18px;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{display:block;width:100%;padding:14px 0;border-bottom:1px dashed var(--line);}
  .nav-actions .mega-wrap{display:none;}
  .page-hero .hero-inner{padding:64px 0 58px;}
  .page-hero .hero-sub{font-size:16px;}
  .check-item{grid-template-columns:1fr;gap:12px;}
  .meter{width:100%;}
  .form-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  h1{font-size:30px;}
  .steps{grid-template-columns:1fr;}
  .step:nth-child(2n){padding-left:0;border-left:0;}
  .hero-actions .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px;}
  .feature-body h3{font-size:21px;}
  .form-card{padding:20px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0E1113;
  --ink-700:#1F262B;
  --ink-500:#3A444C;
  --ink-300:#6B767F;
  --line:#E3DED4;
  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --signal:#12946E;
  --signal-soft:rgba(18,148,110,.10);
  --flare:#D4703A;
  --flare-soft:rgba(212,112,58,.10);
  --serif:"Noto Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-btn:2px;
  --r-card:4px;
  --r-tag:999px;
  --shadow-panel:0 20px 40px rgba(14,17,19,.10);
  --shadow-soft:0 2px 10px rgba(14,17,19,.05);
  --w:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-500);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--signal);text-decoration:none}
a:hover{color:var(--signal)}
img{max-width:100%;display:block;border-radius:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
::selection{background:var(--signal);color:#fff}

/* ============ 容器与通用排版 ============ */
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--paper2{background:var(--paper-2)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{
  font-family:var(--serif);
  font-size:clamp(26px,2.8vw,38px);
  line-height:1.2;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
  position:relative;
  padding-left:18px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:3px;height:.82em;
  background:var(--signal);
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink-300);max-width:660px}
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--ink-300);
  text-transform:uppercase;
  margin-bottom:12px;
  display:block;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(10px);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,244,239,.90);
  box-shadow:0 2px 14px rgba(14,17,19,.07);
}
.nav-wrap{display:flex;align-items:center;height:72px;gap:28px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.logo:hover{color:var(--ink-900)}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;height:32px;
  background:var(--ink-900);
  color:#fff;
  font-family:var(--sans);
  font-size:13px;
  font-weight:700;
  border-radius:var(--r-btn);
  letter-spacing:0;
}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-500);
  padding:6px 0;
  transition:color .22s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper-2);
  font-size:14px;
  color:var(--ink-700);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.mega-trigger:hover{border-color:var(--ink-500);color:var(--ink-900)}
.caret{
  display:inline-block;
  width:6px;height:6px;
  margin-left:9px;
  border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
  transition:transform .24s var(--ease);
}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(225deg) translateY(-1px)}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 14px);
  width:880px;
  display:none;
  grid-template-columns:1fr 1fr 1.15fr;
  gap:28px;
  padding:28px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-panel);
}
.mega-panel.is-open{display:grid;animation:panelIn .2s var(--ease) both}
@keyframes panelIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.mega-col h4{
  font-size:13px;
  font-weight:600;
  color:var(--ink-300);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.mega-item{
  display:block;
  padding:10px 12px;
  border-radius:var(--r-btn);
  transition:background .22s var(--ease);
}
.mega-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink-900)}
.mega-item span{display:block;font-size:13px;color:var(--ink-300);line-height:1.6;margin-top:2px}
.mega-item:hover{background:var(--paper)}
.mega-item:hover strong{color:var(--signal)}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--paper-2);
  transition:border-color .22s var(--ease);
}
.mega-card:hover{border-color:var(--ink-500)}
.mega-card .thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.mega-card:hover .thumb img{transform:scale(1.03)}
.mega-card .body{display:block;padding:16px 18px 18px}
.mega-card .body strong{display:block;font-family:var(--serif);font-size:16px;color:var(--ink-900)}
.mega-card .body span{display:block;font-size:13px;color:var(--ink-300);margin-top:6px;line-height:1.7}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper-2);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:1.5px;
  background:var(--ink-700);
  transform:translate(-50%,-50%);
  content:"";
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span::before{transform:translate(-50%,-6px)}
.nav-toggle span::after{transform:translate(-50%,6px)}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translate(-50%,0) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translate(-50%,0) rotate(-45deg)}

/* ============ 按钮 / 文字链 ============ */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:50px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  overflow:hidden;
  isolation:isolate;
  transition:color .26s var(--ease),transform .1s var(--ease),border-color .26s var(--ease);
  white-space:nowrap;
}
.btn::before{
  content:"";
  position:absolute;
  inset:0;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .26s var(--ease);
  z-index:-1;
}
.btn:hover::before{transform:scaleX(1)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink-900);color:#fff}
.btn-primary::before{background:var(--signal)}
.btn-primary:hover{color:#fff}
.btn-signal{background:var(--signal);color:#fff}
.btn-signal::before{background:var(--ink-900)}
.btn-signal:hover{color:#fff}
.btn-ghost{background:transparent;color:var(--ink-900);border:1px solid var(--line)}
.btn-ghost::before{background:var(--ink-900)}
.btn-ghost:hover{color:#fff;border-color:var(--ink-900)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:34px}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--signal);
  position:relative;
}
.link-arrow i{font-style:normal;transition:transform .24s var(--ease)}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  height:1px;width:100%;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 内页 hero ============ */
.page-hero{
  position:relative;
  background:var(--ink-900);
  color:#fff;
  overflow:hidden;
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  opacity:.38;
}
.page-hero__bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(14,17,19,.80),rgba(14,17,19,.52));
}
.page-hero__inner{position:relative;padding:78px 0 84px;max-width:820px}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:26px;
}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:var(--signal)}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .current{color:rgba(255,255,255,.62)}
.page-hero h1{
  font-family:var(--serif);
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.12;
  font-weight:700;
  letter-spacing:-.02em;
  color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--signal)}
.hero-rule{width:64px;height:3px;background:var(--signal);margin:26px 0 22px}
.page-hero .lede{
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:620px;
}
.page-hero .btn-row{margin-top:36px}
.page-hero .link-arrow{color:#fff}
.page-hero .link-arrow::after{background:#fff}

/* ============ 指标条 ============ */
.metrics{background:var(--ink-900);color:#fff;padding:58px 0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:0 30px;border-left:1px solid rgba(255,255,255,.12)}
.metric:first-child{border-left:0;padding-left:0}
.metric-bar{width:24px;height:2px;background:var(--signal);margin-bottom:20px}
.metric-num{
  font-family:var(--serif);
  font-size:clamp(34px,3.6vw,52px);
  line-height:1;
  font-weight:700;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.metric-label{display:block;margin-top:14px;font-size:15px;font-weight:600;color:#fff}
.metric-desc{display:block;margin-top:6px;font-size:13px;line-height:1.6;color:var(--ink-300)}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:52px}
.tl-item{position:relative;padding-left:96px;padding-bottom:44px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:27px;
  top:58px;
  bottom:-6px;
  width:1px;
  background:var(--line);
}
.tl-item:last-child::before{display:none}
.tl-no{
  position:absolute;
  left:0;top:0;
  width:56px;height:56px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--paper-2);
  font-family:var(--mono);
  font-size:15px;
  color:var(--ink-300);
  font-variant-numeric:tabular-nums;
  transition:border-color .26s var(--ease),color .26s var(--ease);
}
.tl-item:hover .tl-no{border-color:var(--signal);color:var(--signal)}
.tl-body h3{
  font-family:var(--serif);
  font-size:21px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink-900);
}
.tl-body p{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:720px}
.tl-tag{
  display:inline-block;
  margin-top:14px;
  font-size:12px;
  font-family:var(--mono);
  color:var(--ink-300);
  border:1px solid var(--line);
  border-radius:var(--r-tag);
  padding:3px 12px;
  background:var(--paper-2);
}

/* ============ 卡片瀑布 ============ */
.waterfall{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
  margin-top:8px;
}
.w-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.w-card:nth-child(even){margin-top:56px}
.w-card:hover{transform:translateY(-2px);border-color:var(--ink-500)}
.w-card .thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--paper)}
.w-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.w-card:hover .thumb img{transform:scale(1.03)}
.w-body{padding:26px 28px 30px}
.badge{
  display:inline-block;
  font-size:12px;
  line-height:1.6;
  color:var(--ink-300);
  border:1px solid var(--line);
  border-radius:var(--r-tag);
  padding:2px 12px;
  background:var(--paper-2);
  margin-bottom:14px;
}
.w-body h3{
  font-family:var(--serif);
  font-size:21px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink-900);
}
.w-body p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-500)}
.w-body .link-arrow{margin-top:16px}

/* ============ 现象对照 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:8px}
.compare-col{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
}
.compare-col header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.compare-col h3{font-size:17px;font-weight:600;color:var(--ink-900);font-family:var(--serif)}
.tagA,.tagB{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;height:28px;
  border-radius:var(--r-tag);
  font-size:13px;
  font-weight:700;
}
.tagA{background:var(--paper);border:1px solid var(--line);color:var(--ink-300)}
.tagB{background:var(--signal);color:#fff}
.check-list li{
  position:relative;
  padding:12px 0 12px 26px;
  font-size:15px;
  color:var(--ink-500);
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:22px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--line);
}
.compare-col.colB .check-list li::before{background:var(--signal)}
.bar-wrap{margin-top:26px}
.bar-head{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums}
.bar{height:6px;border-radius:99px;background:var(--paper);border:1px solid var(--line);margin-top:10px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--ink-300)}
.bar.bar--signal i{background:var(--signal)}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin-top:8px}
.faq-item{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  transition:border-color .24s var(--ease);
}
.faq-item[open]{border-color:var(--ink-500)}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:22px 60px 22px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:24px;top:50%;
  transform:translateY(-50%);
  font-size:22px;
  line-height:1;
  color:var(--ink-300);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--signal)}
.faq-body{padding:0 24px 24px}
.faq-body p{
  border-left:3px solid var(--signal);
  padding-left:16px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-500);
}

/* ============ 表单 / CTA ============ */
.cta-wrap{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:48px;
  align-items:start;
  margin-top:8px;
}
.form-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-soft);
  padding:36px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--ink-300)}
.field input,.field select,.field textarea{
  height:52px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper-2);
  padding:0 14px;
  font-size:15px;
  color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:126px;padding:14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--signal);
  box-shadow:0 0 0 3px var(--signal-soft);
}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-300);line-height:1.7}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--signal)}
.form-card .btn{width:100%;margin-top:4px}
.trust{display:flex;flex-direction:column;gap:22px;padding-top:8px}
.trust h3{font-family:var(--serif);font-size:21px;font-weight:600;color:var(--ink-900)}
.trust-item{
  display:flex;
  gap:14px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.trust-item:last-child{border-bottom:0;padding-bottom:0}
.trust-item .dot{
  flex:0 0 auto;
  width:10px;height:10px;
  margin-top:9px;
  border-radius:var(--r-tag);
  background:var(--signal);
}
.trust-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink-900)}
.trust-item span{display:block;font-size:14px;color:var(--ink-300);line-height:1.75;margin-top:4px}

/* ============ 状态样式 ============ */
.alert{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:14px 16px;
  border-radius:var(--r-btn);
  font-size:14px;
  border-left:3px solid var(--signal);
  background:var(--signal-soft);
  color:var(--ink-700);
}
.alert-error{border-left-color:var(--flare);background:var(--flare-soft)}
.alert-ok{border-left-color:var(--signal);background:var(--signal-soft)}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  text-align:center;
  padding:64px 24px;
  color:var(--ink-300);
  background:var(--paper-2);
}
.empty-state .icon{
  width:44px;height:44px;
  margin:0 auto 16px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.empty-state p{margin-bottom:20px;font-size:15px}
.skeleton{
  background:var(--line);
  border-radius:var(--r-card);
  animation:breathe 1.6s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.5}}

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

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68);padding:76px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}
.foot-brand .logo{color:#fff;font-size:18px}
.foot-brand .logo-mark{background:var(--signal)}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.85;max-width:320px;color:rgba(255,255,255,.56)}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.foot-col li{margin-bottom:12px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.68);position:relative;transition:color .22s var(--ease)}
.foot-col a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:100%;height:1px;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.foot-col a:hover{color:var(--signal)}
.foot-col a:hover::after{transform:scaleX(1)}
.foot-col .plain{font-size:14px;color:rgba(255,255,255,.56)}
.foot-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.48);
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .nav-wrap{gap:20px}
  .main-nav{gap:20px}
  .mega-panel{width:760px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .main-nav{
    position:fixed;
    left:0;right:0;
    top:72px;
    display:none;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:12px 24px 22px;
    background:var(--paper-2);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-panel);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .main-nav.is-open{display:flex}
  .main-nav .nav-link{width:100%;padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.is-active{color:var(--signal)}
  .mega-panel{
    position:fixed;
    left:16px;right:16px;
    top:auto;
    width:auto;
    grid-template-columns:1fr;
    max-height:70vh;
    overflow-y:auto;
  }
  .nav-toggle{display:block}
  .nav-actions{gap:8px}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:36px 0}
  .metric{border-left:0;padding:0}
  .metric:nth-child(n){padding-left:0}
  .waterfall{grid-template-columns:1fr;gap:24px}
  .w-card:nth-child(even){margin-top:0}
  .cta-wrap{grid-template-columns:1fr;gap:36px}
  .compare{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero__inner{padding:56px 0 62px}
  .page-hero .lede{font-size:16px}
  .section{padding:56px 0}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .tl-item{padding-left:0;padding-bottom:34px}
  .tl-item::before{display:none}
  .tl-no{position:static;margin-bottom:14px}
  .foot-grid{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:480px){
  .logo{font-size:16px}
  .btn{width:100%;padding:0 18px}
  .btn-row{flex-direction:column;align-items:stretch;gap:14px}
  .btn-row .link-arrow{justify-content:center;width:100%}
  .metric-num{font-size:34px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .fade-up{opacity:1;transform:none}
}