/* roulang page: index */
:root{
  --brand:#12A98C;
  --brand-deep:#0B7A66;
  --accent:#FF7A45;
  --violet:#7B5CF0;
  --ink:#0E1F1D;
  --text:#3C4A48;
  --muted:#7A8A87;
  --line:#E4EBE9;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --warn:#FFB020;
  --ok:#12A98C;
  --err:#E5484D;
  --grad:linear-gradient(120deg,#12A98C,#7B5CF0);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-rest:0 8px 24px rgba(14,31,29,.06);
  --sh-hover:0 16px 40px rgba(14,31,29,.12);
  --sp:8px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.25}
h2{font-size:28px}
h3{font-size:20px;font-weight:600}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-deep)}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head p{margin-top:10px;color:var(--muted);max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-deep);
  background:rgba(18,169,140,.08);
  border:1px solid rgba(18,169,140,.28);
  border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 12px rgba(14,31,29,.04);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(18,169,140,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-links a:hover{color:var(--brand-deep)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative}
.search-box input{
  width:240px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#F8FBFA;
  padding:0 18px 0 40px;font-size:14px;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,169,140,.12);
}
.search-box svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--muted);pointer-events:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,#FF8A57,#FF7A45);
  color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);
}
.btn-primary:hover{color:#fff;background:linear-gradient(120deg,#FF7A45,#F2632C);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,122,69,.34)}
.btn-ghost{
  background:#fff;color:var(--brand);border:1.5px solid var(--brand);
}
.btn-ghost:hover{background:rgba(18,169,140,.08);color:var(--brand-deep);transform:translateY(-2px)}
.btn-outline-light{
  background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.55);
}
.btn-outline-light:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}
.text-link{font-size:14px;font-weight:600;color:var(--brand)}
.text-link:hover{color:var(--brand-deep);text-decoration:underline}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:560px;display:flex;align-items:center;
  background-color:#0E1F1D;
  background-image:linear-gradient(120deg,rgba(18,169,140,.78),rgba(14,31,29,.86) 62%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;padding:88px 0;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,92,240,.45),rgba(123,92,240,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.hero .eyebrow{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.hero .eyebrow::before{background:#8FF0DA}
.hero h1{
  font-size:clamp(28px,5vw,44px);line-height:1.2;font-weight:700;color:#fff;
  margin-bottom:20px;letter-spacing:.2px;
}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.badge-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);
  border-radius:20px;padding:18px 8px;
  max-width:720px;
}
.badge-cell{padding:0 18px;border-right:1px solid rgba(255,255,255,.2)}
.badge-cell:last-child{border-right:0}
.badge-cell b{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.badge-cell span{font-size:12.5px;color:rgba(255,255,255,.75)}
.hero-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.66)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:28px 24px;box-shadow:var(--sh-rest);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-num{
  width:40px;height:40px;border-radius:50%;border:2px solid var(--violet);color:var(--violet);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:10px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.7}
.step-line{position:absolute;top:48px;right:-14px;width:28px;border-top:1px dashed var(--line)}

/* ---------- 功能错落卡 ---------- */
.feature-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.feature-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-rest);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(18,169,140,.4)}
.feature-thumb{aspect-ratio:16/9;background:#E4EBE9;overflow:hidden}
.feature-card:first-child .feature-thumb{aspect-ratio:21/9}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.feature-card:hover .feature-thumb img{transform:scale(1.03)}
.feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-body p{font-size:14.5px;color:var(--muted)}
.feature-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  font-size:12px;font-weight:600;color:var(--violet);
  background:#fff;border:1px solid var(--violet);border-radius:var(--r-pill);
  padding:4px 12px;font-variant-numeric:tabular-nums;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.tag{
  font-size:12.5px;font-weight:600;color:var(--brand-deep);
  background:rgba(18,169,140,.08);border:1px solid rgba(18,169,140,.24);
  border-radius:var(--r-pill);padding:3px 12px;
}
.tag.violet{color:#5A3ED6;background:rgba(123,92,240,.08);border-color:rgba(123,92,240,.28)}

/* ---------- 进度 ---------- */
.progress-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-rest);
}
.stage-bar{display:flex;align-items:flex-start;gap:0;margin-bottom:36px}
.stage{flex:1;position:relative;text-align:center}
.stage::before{
  content:"";position:absolute;top:11px;left:-50%;width:100%;height:2px;background:var(--line);
}
.stage:first-child::before{display:none}
.stage.done::before,.stage.current::before{background:var(--brand)}
.stage-dot{
  position:relative;z-index:2;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--line);margin:0 auto 12px;
}
.stage.done .stage-dot{background:var(--grad);border-color:transparent}
.stage.current .stage-dot{border-color:var(--accent);background:#fff}
.stage.current .stage-dot::after{
  content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(255,122,69,.5);
  animation:pulse 1.8s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(.8);opacity:.9}100%{transform:scale(1.35);opacity:0}}
.stage span{display:block;font-size:13.5px;color:var(--muted)}
.stage.done span,.stage.current span{color:var(--ink);font-weight:600}
.progress-card{
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;
  border-top:1px solid var(--line);padding-top:28px;
}
.progress-num{font-size:40px;font-weight:700;color:var(--ink);line-height:1;font-variant-numeric:tabular-nums}
.progress-num small{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px}
.progress-track{flex:1;min-width:240px}
.progress-line{height:8px;border-radius:var(--r-pill);background:var(--line);overflow:hidden}
.progress-line i{display:block;height:100%;width:60%;border-radius:var(--r-pill);background:var(--grad)}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:10px}
.status-chip{
  font-size:13px;font-weight:600;color:#8A5A00;background:rgba(255,176,32,.14);
  border:1px solid rgba(255,176,32,.5);border-radius:var(--r-pill);padding:6px 16px;
}
.panel-note{margin-top:20px;font-size:13px;color:var(--muted)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-rest);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(18,169,140,.4)}
.news-card-lead{grid-column:span 2;flex-direction:row}
.news-card-lead .news-thumb{width:44%;aspect-ratio:16/9;background:#E4EBE9;flex-shrink:0}
.news-card-lead .news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted)}
.chip{
  font-size:12.5px;font-weight:600;color:var(--brand-deep);
  background:rgba(18,169,140,.08);border:1px solid rgba(18,169,140,.24);
  border-radius:var(--r-pill);padding:3px 12px;
}
.news-title{font-size:18px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--brand)}
.news-desc{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .text-link{margin-top:auto}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
  padding:64px 24px;text-align:center;color:var(--muted);
}
.empty-icon{
  width:56px;height:56px;border-radius:18px;background:rgba(18,169,140,.1);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--brand);
}
.empty-icon svg{width:26px;height:26px}

/* ---------- 要点清单 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.point-card{
  background:linear-gradient(150deg,rgba(18,169,140,.07),rgba(123,92,240,.05));
  border:1px solid var(--line);border-radius:var(--r-md);padding:28px;
}
.point-card h3{margin-bottom:16px}
.point-card li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--text);margin-bottom:10px;line-height:1.7;
}
.point-card li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--brand);
}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-rest);max-width:900px;margin:0 auto;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:24px 28px;font-size:16px;font-weight:600;color:var(--ink);
  transition:background .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F8FBFA;color:var(--brand-deep)}
.faq-item summary .arrow{
  flex-shrink:0;width:24px;height:24px;color:var(--brand);
  transition:transform .22s ease-out;display:flex;align-items:center;justify-content:center;
}
.faq-item[open] summary .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 28px 26px;font-size:15px;line-height:1.8;color:var(--text)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:#0E1F1D;border-radius:var(--r-lg);
  padding:56px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:inset 0 0 0 1px rgba(143,240,218,.14),inset 0 40px 120px rgba(18,169,140,.14);
}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,169,140,.35),rgba(18,169,140,0) 70%);
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{color:#fff;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-points{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;width:100%;margin-top:8px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
}
.cta-point{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.82);font-size:14px}
.cta-point i{
  width:28px;height:28px;border-radius:9px;background:rgba(18,169,140,.2);
  border:1px solid rgba(143,240,218,.35);display:flex;align-items:center;justify-content:center;
  color:#8FF0DA;flex-shrink:0;
}
.cta-point svg{width:14px;height:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1F1D;color:rgba(255,255,255,.72);margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand span{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.75;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px}
.footer-col a:hover{color:#8FF0DA}
.footer-col p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.6)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 移动端 ---------- */
.sticky-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  gap:10px;
}
.sticky-cta .btn{flex:1;height:44px;font-size:14px;padding:0 12px}

@media (max-width:1279px){
  .search-box input{width:190px}
  .nav-links{gap:20px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links,.search-box{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .site-header.open .nav-links{
    display:flex;position:absolute;left:0;right:0;top:72px;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:16px 24px 22px;box-shadow:0 16px 32px rgba(14,31,29,.08);
  }
  .site-header.open .nav-links a{padding:12px 0;width:100%;font-size:16px}
  .site-header.open .nav-links a::after{display:none}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-card:first-child{grid-column:span 2}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-card-lead{grid-column:span 2;flex-direction:column}
  .news-card-lead .news-thumb{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  h2{font-size:24px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .nav-wrap{height:60px}
  .site-header.open .nav-links{top:60px}
  .brand-text{font-size:15px}
  .hero{min-height:auto;padding:56px 0}
  .hero-sub{font-size:15.5px;margin-bottom:24px}
  .hero-actions{margin-bottom:32px}
  .hero-actions .btn{flex:1;min-width:150px}
  .badge-strip{
    grid-template-columns:repeat(4,minmax(160px,1fr));gap:0;
    overflow-x:auto;scroll-snap-type:x mandatory;padding:16px 4px;
  }
  .badge-cell{scroll-snap-align:start;padding:0 16px}
  .steps{grid-template-columns:1fr;gap:16px}
  .step-line{display:none}
  .feature-grid{grid-template-columns:1fr}
  .feature-card:first-child{grid-column:span 1}
  .feature-card:first-child .feature-thumb{aspect-ratio:16/9}
  .news-grid{grid-template-columns:1fr}
  .news-card-lead{grid-column:span 1}
  .point-grid{grid-template-columns:1fr}
  .progress-panel{padding:24px}
  .stage-bar{margin-bottom:24px}
  .stage span{font-size:11.5px}
  .stage-dot{width:18px;height:18px}
  .stage::before{top:8px}
  .cta-band{padding:32px 24px}
  .cta-points{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding-top:48px}
  .faq-item summary{padding:20px;font-size:15.5px}
  .faq-answer{padding:0 20px 22px}
  .sticky-cta{display:flex}
  body{padding-bottom:74px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --brand:#12A98C;
  --brand-deep:#0B7A66;
  --accent:#FF7A45;
  --violet:#7B5CF0;
  --ink:#0E1F1D;
  --text:#3C4A48;
  --muted:#7A8A87;
  --line:#E4EBE9;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --ok:#12A98C;
  --warn:#FFB020;
  --err:#E5484D;
  --brand-grad:linear-gradient(120deg,#12A98C,#7B5CF0);
  --accent-grad:linear-gradient(120deg,#FF7A45,#FF9A6B);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --shadow-sm:0 8px 24px rgba(14,31,29,.06);
  --shadow-hover:0 16px 40px rgba(14,31,29,.12);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 12px rgba(14,31,29,.04);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand-grad);
  display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 6px 16px rgba(18,169,140,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--brand-deep);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;width:248px;height:42px;padding:0 14px;
  background:#F1F6F5;border:1px solid var(--line);border-radius:var(--pill);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.search-box svg{width:18px;height:18px;color:var(--muted);flex-shrink:0;}
.search-box input{width:100%;border:0;background:transparent;font-size:14px;color:var(--ink);outline:none;}
.search-box input::placeholder{color:var(--muted);}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,169,140,.08);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);font-weight:600;line-height:1;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--accent-grad);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:rgba(18,169,140,.08);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  position:relative;background:#fff;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transform:translateX(-50%);transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;min-height:230px;
  display:flex;align-items:center;
  background-image:linear-gradient(105deg,rgba(11,122,102,.86),rgba(14,31,29,.78)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,92,240,.4),rgba(123,92,240,0) 68%);pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:44px 0;max-width:760px;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.page-banner h1{
  margin-top:18px;color:#fff;font-size:clamp(28px,5vw,42px);font-weight:700;line-height:1.22;
}
.page-banner p{margin-top:14px;color:rgba(255,255,255,.88);font-size:16px;line-height:1.8;max-width:640px;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:14px;}
.breadcrumb a:hover{color:#fff;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{font-size:28px;font-weight:700;color:var(--ink);line-height:1.35;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-block;margin-bottom:14px;padding:6px 14px;border-radius:var(--pill);
  background:rgba(123,92,240,.08);border:1px solid rgba(123,92,240,.28);
  color:var(--violet);font-size:12px;font-weight:600;letter-spacing:.6px;
}

/* stat badges */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-52px;position:relative;z-index:5;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);
}
.stat-card .num-val{font-size:26px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-card .num-val span{font-size:15px;font-weight:600;color:var(--muted);margin-left:2px;}
.stat-card .num-label{margin-top:6px;font-size:13px;color:var(--muted);}

/* split rows */
.split-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
  padding:34px 0;
}
.split-row + .split-row{border-top:1px dashed var(--line);margin-top:34px;}
.split-row.reverse .split-media{order:2;}
.split-row.reverse .split-body{order:1;}
.split-media{
  border-radius:20px;overflow:hidden;background:#E4EBE9;aspect-ratio:16/9;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.split-media:hover img{transform:scale(1.03);}
.split-body h3{font-size:22px;font-weight:600;color:var(--ink);line-height:1.4;}
.split-body .row-index{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
  font-size:12px;font-weight:600;color:var(--violet);letter-spacing:.6px;
}
.row-index i{
  display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--violet);font-style:normal;font-size:12px;font-variant-numeric:tabular-nums;
}
.split-body p{margin-top:14px;font-size:16px;line-height:1.8;}
.mini-list{margin-top:18px;display:grid;gap:10px;}
.mini-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text);}
.mini-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--brand);
}

/* point cards */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 30px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,169,140,.4);}
.point-card .pc-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(18,169,140,.1);border:1px solid rgba(18,169,140,.28);color:var(--brand-deep);
  margin-bottom:18px;
}
.point-card .pc-icon svg{width:22px;height:22px;}
.point-card h3{font-size:19px;font-weight:600;color:var(--ink);}
.point-card p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;color:var(--brand-deep);
  background:rgba(18,169,140,.08);border:1px solid rgba(18,169,140,.24);
}
.tag.violet{color:var(--violet);background:rgba(123,92,240,.08);border-color:rgba(123,92,240,.26);}

/* check list */
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.75;
  background:#F5F8F7;border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;
}
.check-list li b{color:var(--ink);font-weight:600;}
.check-list .ck{
  flex-shrink:0;width:20px;height:20px;border-radius:6px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:12px;margin-top:3px;
}

/* faq */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item[open]{border-color:rgba(18,169,140,.42);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;background:rgba(18,169,140,.1);
  display:grid;place-items:center;transition:transform .2s ease-out;
}
.faq-item summary .chev svg{width:14px;height:14px;color:var(--brand-deep);}
.faq-item[open] summary .chev{transform:rotate(180deg);}
.faq-item .faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text);}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--ink);
  padding:52px 56px;display:flex;align-items:center;gap:40px;justify-content:space-between;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(18,169,140,.16),rgba(123,92,240,.12));
  pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:2;max-width:620px;}
.cta-band h2{color:#fff;font-size:26px;font-weight:700;line-height:1.35;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15px;line-height:1.8;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-shrink:0;}
.cta-points{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px;
}
.cta-points div{
  display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.82);
}
.cta-points svg{width:16px;height:16px;color:var(--brand);flex-shrink:0;}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:72px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .brand-mark svg{width:20px;height:20px;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;max-width:340px;color:rgba(255,255,255,.62);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col ul a:hover{color:var(--brand);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* sticky mobile cta */
.sticky-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);padding:10px 16px;
  align-items:center;gap:12px;justify-content:space-between;
}
.sticky-cta span{font-size:13px;color:var(--muted);}

@media (max-width:1279px){
  .container{padding:0 20px;}
  .stat-bar{grid-template-columns:repeat(4,1fr);gap:16px;}
  .split-row{gap:40px;}
}
@media (max-width:1023px){
  .nav-links{
    position:absolute;top:var(--nav-h);left:0;right:0;background:#fff;
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 20px;
    border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(14,31,29,.08);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{width:100%;padding:13px 0;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-toggle{display:block;}
  .search-box{display:none;}
  .section{padding:72px 0;}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:-40px;}
  .point-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;gap:26px;}
  .cta-points{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .brand-text{font-size:15px;max-width:170px;overflow:hidden;text-overflow:ellipsis;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .split-row{grid-template-columns:1fr;gap:22px;padding:24px 0;}
  .split-row.reverse .split-media{order:1;}
  .split-row.reverse .split-body{order:2;}
  .page-banner h1{font-size:28px;}
  .banner-inner{padding:36px 0;}
  .stat-card{padding:18px 16px;}
  .stat-card .num-val{font-size:22px;}
  .cta-band{padding:32px 24px;border-radius:20px;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-actions{width:100%;flex-wrap:wrap;}
  .cta-band .cta-actions .btn{flex:1;min-width:140px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:6px;padding-bottom:84px;}
  .sticky-cta{display:flex;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-item .faq-body{padding:0 18px 18px;}
  .point-card{padding:24px 20px;border-radius:20px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .stat-bar{grid-template-columns:1fr;margin-top:-32px;}
  .brand-text{max-width:132px;}
  .cta-band .cta-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: article */
:root{
  --primary:#12A98C;
  --primary-deep:#0B7A66;
  --primary-soft:rgba(18,169,140,.08);
  --accent:#FF7A45;
  --accent-deep:#E96232;
  --violet:#7B5CF0;
  --violet-soft:rgba(123,92,240,.08);
  --ink:#0E1F1D;
  --text:#3C4A48;
  --muted:#7A8A87;
  --line:#E4EBE9;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --warn:#FFB020;
  --err:#E5484D;
  --grad:linear-gradient(120deg,#12A98C,#7B5CF0);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-sm:0 8px 24px rgba(14,31,29,.06);
  --shadow-md:0 16px 40px rgba(14,31,29,.12);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:16px;background:#E4EBE9;object-fit:cover;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out;}
a:hover{color:var(--primary-deep);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.tabnum{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 12px rgba(14,31,29,.04);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(18,169,140,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-links a:hover{color:var(--primary-deep);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:250px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#F7FAF9;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px var(--primary-soft);}
.search-box svg{width:18px;height:18px;color:var(--muted);flex:0 0 auto;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--muted);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:999px;font-size:15px;font-weight:600;
  padding:13px 24px;cursor:pointer;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{background:linear-gradient(120deg,#FF7A45,#FF9558);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
.btn-primary:hover{background:linear-gradient(120deg,#E96232,#F2803F);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-ghost{background:#fff;color:var(--primary);border:1.5px solid var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-2px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#152B28;color:#fff;transform:translateY(-2px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transform:translateX(-50%);transition:transform .2s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;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(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C6D3D0;}
.crumb .current{color:var(--ink);font-weight:500;}

/* ---------- article head ---------- */
.article-head{
  position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(18,169,140,.10),rgba(123,92,240,.06));
  pointer-events:none;
}
.article-head .container{position:relative;padding-top:48px;padding-bottom:44px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;padding:6px 14px;border-radius:999px;
  background:var(--primary-soft);border:1px solid rgba(18,169,140,.28);color:var(--primary-deep);
}
.tag-violet{background:var(--violet-soft);border-color:rgba(123,92,240,.28);color:#5B3FD0;}
.tag-plain{background:#F1F5F4;border-color:var(--line);color:var(--muted);}
.article-head h1{
  font-size:clamp(28px,5vw,44px);line-height:1.2;font-weight:700;max-width:900px;
}
.article-lead{margin-top:16px;max-width:820px;font-size:16px;color:var(--muted);}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px;
  font-size:13.5px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C6D3D0;}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  box-shadow:0 2px 8px rgba(14,31,29,.04);color:var(--text);font-size:13.5px;
}
.meta-pill svg{width:15px;height:15px;color:var(--primary);}

/* ---------- layout ---------- */
.article-main{padding:56px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.article-col{min-width:0;max-width:820px;}

/* ---------- article body ---------- */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px 44px;box-shadow:var(--shadow-sm);font-size:16.5px;line-height:1.85;color:var(--text);
}
.article-body > * + *{margin-top:20px;}
.article-body p{font-size:16.5px;line-height:1.85;color:var(--text);}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;color:var(--ink);
  margin-top:40px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--primary);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink);margin-top:28px;}
.article-body a{color:var(--primary);font-weight:500;}
.article-body a:hover{text-decoration:underline;}
.article-body ul,.article-body ol{margin-top:16px;padding-left:4px;}
.article-body li{position:relative;padding-left:22px;margin-top:10px;line-height:1.8;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--primary);
}
.article-body ol{counter-reset:cmslist;}
.article-body ol li{counter-increment:cmslist;padding-left:30px;}
.article-body ol li::before{
  content:counter(cmslist);position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:50%;
  background:var(--violet-soft);border:1px solid rgba(123,92,240,.35);color:#5B3FD0;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin-top:24px;padding:18px 22px;background:#EFF8F5;border-left:4px solid var(--primary);
  border-radius:0 16px 16px 0;color:#26504A;
}
.article-body blockquote p{font-size:16px;color:#26504A;}
.article-body img{margin-top:24px;border-radius:16px;aspect-ratio:16/9;width:100%;height:auto;}
.article-body figure{margin:24px 0 0;}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center;}
.article-body table{width:100%;border-collapse:collapse;margin-top:24px;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:#EFF8F5;color:var(--ink);font-weight:600;}
.article-body code{
  background:#F1F5F4;padding:2px 6px;border-radius:6px;font-size:14.5px;color:#26504A;
}

/* ---------- summary card ---------- */
.summary-card{
  margin-top:28px;background:#EFF8F5;border:1px solid rgba(18,169,140,.22);
  border-radius:16px;padding:26px 28px;
}
.summary-card h2{font-size:19px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;}
.summary-card h2 span{
  display:inline-flex;width:26px;height:26px;border-radius:8px;background:var(--grad);
  align-items:center;justify-content:center;color:#fff;font-size:13px;
}
.summary-card ul{margin-top:14px;display:grid;gap:10px;}
.summary-card li{position:relative;padding-left:20px;font-size:15px;color:#26504A;}
.summary-card li::before{
  content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:50%;background:var(--primary);
}

/* ---------- empty state ---------- */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;background:var(--primary-soft);
  border:1px solid rgba(18,169,140,.25);display:flex;align-items:center;justify-content:center;
}
.empty-state .ico svg{width:26px;height:26px;color:var(--primary);}
.empty-state h2{font-size:22px;}
.empty-state p{margin-top:10px;color:var(--muted);font-size:15px;}
.empty-state .btn{margin-top:22px;}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:16px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px;}
.side-card h3::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--violet);flex:0 0 auto;
}
.side-list{margin-top:14px;display:grid;gap:12px;}
.side-list a{
  display:block;font-size:14.5px;color:var(--text);font-weight:500;line-height:1.6;
  padding-left:14px;position:relative;
}
.side-list a::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--line);
  transition:background .18s ease-out;
}
.side-list a:hover{color:var(--primary);}
.side-list a:hover::before{background:var(--primary);}
.side-cta{
  background:var(--ink);border-radius:var(--radius-md);padding:24px;color:#fff;position:relative;overflow:hidden;
}
.side-cta::after{
  content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(18,169,140,.22),rgba(123,92,240,.14));
  pointer-events:none;
}
.side-cta>*{position:relative;z-index:1;}
.side-cta h3{font-size:17px;color:#fff;}
.side-cta p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.76);line-height:1.7;}
.side-cta .btn{margin-top:18px;width:100%;}

/* ---------- related ---------- */
.related{margin-top:56px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.related-head h2{font-size:24px;}
.related-head a{font-size:14px;font-weight:600;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(18,169,140,.35);}
.card-thumb{aspect-ratio:16/9;width:100%;border-radius:0;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--primary);}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--muted);}
.chip{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--violet-soft);border:1px solid rgba(123,92,240,.28);color:#5B3FD0;
}
.card-link{font-size:13.5px;font-weight:600;color:var(--primary);}

/* ---------- prev next ---------- */
.pager{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;align-items:center;}
.pager a{
  flex:1 1 240px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;font-size:14.5px;color:var(--text);box-shadow:var(--shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.pager a:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,169,140,.35);color:var(--primary);}
.pager a span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;}
.back-pill{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;background:var(--ink);border-radius:var(--radius-lg);
  padding:48px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.cta-card::after{
  content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(18,169,140,.16),rgba(123,92,240,.12));
  pointer-events:none;
}
.cta-card>*{position:relative;z-index:1;}
.cta-card h2{color:#fff;font-size:28px;}
.cta-card p{margin-top:12px;color:rgba(255,255,255,.76);font-size:15px;max-width:560px;}
.cta-points{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
}
.cta-points div{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.82);font-size:13.5px;}
.cta-points svg{width:18px;height:18px;color:var(--primary);flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.74);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media (max-width:1023px){
  .nav-links{gap:18px;}
  .search-box{width:200px;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-col{max-width:100%;}
  .sidebar{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-wrap{height:60px;gap:12px;}
  .brand-text{font-size:16px;}
  .search-box{display:none;}
  .nav-actions .btn-primary.btn-sm{display:none;}
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;top:60px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 16px 16px;margin:0;
    box-shadow:0 16px 40px rgba(14,31,29,.12);display:none;
  }
  .site-header.nav-open .nav-links{display:flex;}
  .nav-links a{width:100%;padding:13px 0;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--primary);}
  .article-head .container{padding-top:32px;padding-bottom:30px;}
  .article-main{padding:32px 0 64px;}
  .article-body{padding:24px 20px;border-radius:var(--radius-md);font-size:16px;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .summary-card{padding:20px;}
  .card-grid{grid-template-columns:1fr;}
  .related{margin-top:40px;}
  .related-head h2{font-size:20px;}
  .cta-band{padding-bottom:64px;}
  .cta-card{padding:28px 22px;}
  .cta-card h2{font-size:22px;}
  .cta-points{grid-template-columns:1fr;}
  .site-footer{padding:44px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .pager a{flex:1 1 100%;}
}
@media (max-width:479px){
  .brand-text{font-size:15px;}
  .article-head h1{font-size:26px;}
  .meta-row{gap:10px;}
  .meta-pill{font-size:12.5px;padding:6px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand:#12A98C;
  --brand-deep:#0B7A66;
  --brand-soft:rgba(18,169,140,.08);
  --accent:#FF7A45;
  --accent-deep:#E8622C;
  --purple:#7B5CF0;
  --purple-soft:rgba(123,92,240,.08);
  --ink:#0E1F1D;
  --text:#3C4A48;
  --muted:#7A8A87;
  --line:#E4EBE9;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --ok:#12A98C;
  --warn:#FFB020;
  --err:#E5484D;
  --grad:linear-gradient(120deg,#12A98C,#7B5CF0);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(14,31,29,.06);
  --sh-2:0 16px 40px rgba(14,31,29,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 12px rgba(14,31,29,.04);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.2px;white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:11px;
  background:var(--grad);display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(18,169,140,.24);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{max-width:200px;overflow:hidden;text-overflow:ellipsis;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:block;padding:9px 13px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:236px;height:40px;
  padding:0 14px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.search-box:focus-within{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.search-box svg{width:16px;height:16px;color:var(--muted);flex:none;}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);font-family:inherit;
}
.search-box input::placeholder{color:var(--muted);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:1.5px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(18,169,140,.24);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(18,169,140,.32);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28);}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;flex:none;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background .18s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s ease-out;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(11,122,102,.9),rgba(14,31,29,.86)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.06);
}
.page-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:16px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span.sep{color:rgba(255,255,255,.5);}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:16px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  font-size:13px;font-weight:600;color:#fff;
}
.page-hero h1{
  color:#fff;font-size:clamp(28px,5vw,44px);font-weight:700;line-height:1.2;
  max-width:18em;
}
.page-hero p.lede{
  margin-top:16px;max-width:44em;font-size:16px;line-height:1.8;color:rgba(255,255,255,.9);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-meta span{
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.26);color:#fff;
}

/* ============ 主体两栏 ============ */
.layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:48px;padding:64px 0 88px;align-items:start;
}
.toc{
  position:sticky;top:100px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 18px;box-shadow:var(--sh-1);
}
.toc h4{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.4px;margin-bottom:12px;}
.toc ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text);transition:background .18s ease-out,color .18s ease-out;
}
.toc a::before{
  counter-increment:toc;content:counter(toc,decimal-leading-zero);
  font-size:11px;font-weight:600;color:var(--purple);
  font-variant-numeric:tabular-nums;
}
.toc a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.toc .toc-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;line-height:1.7;color:var(--muted);
}

.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-1);
}
.panel + .panel{margin-top:28px;}
.section-head{margin-bottom:24px;}
.section-head h2{
  font-size:28px;font-weight:700;line-height:1.3;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--grad);
}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);max-width:52em;}
.note{margin-top:18px;font-size:13px;color:var(--muted);}

/* 数据徽章 */
.badge-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.badge-card{
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 18px;background:linear-gradient(180deg,rgba(18,169,140,.05),rgba(255,255,255,0));
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.badge-card:nth-child(2),
.badge-card:nth-child(4){background:linear-gradient(180deg,rgba(123,92,240,.06),rgba(255,255,255,0));}
.badge-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#cfe7e0;}
.badge-num{
  font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.badge-card:nth-child(2) .badge-num,
.badge-card:nth-child(4) .badge-num{color:var(--purple);}
.badge-label{margin-top:6px;font-size:13px;color:var(--muted);}

/* 时间线 */
.timeline{display:flex;flex-direction:column;}
.step{
  position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;
  padding-bottom:30px;
}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::before{
  content:"";position:absolute;left:21px;top:44px;bottom:4px;width:0;
  border-left:1px dashed #cfe0dc;
}
.step-dot{
  width:44px;height:44px;border-radius:50%;flex:none;
  display:grid;place-items:center;
  background:#fff;border:1.5px solid var(--purple);color:var(--purple);
  font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;
  z-index:1;
}
.step h3{font-size:20px;font-weight:600;line-height:1.4;}
.step p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--text);}
.step .step-tip{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--purple-soft);color:#5b41c9;font-size:12px;font-weight:600;
}

/* 图文并排 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;}
.split-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:#E4EBE9;}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.split h3{font-size:20px;font-weight:600;margin-bottom:14px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;font-size:15px;line-height:1.8;}
.check-list li::before{
  content:"";width:22px;height:22px;margin-top:5px;border-radius:50%;
  background:var(--brand-soft) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'><path d='m7 12.5 3.2 3.2L17 9' stroke='%2312A98C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/14px no-repeat;
}

/* 对比卡 */
.compare-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.compare-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;padding:24px 22px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#cfe7e0;}
.compare-tag{
  align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border:1px solid rgba(18,169,140,.24);
}
.compare-card:nth-child(2) .compare-tag{color:#5b41c9;background:var(--purple-soft);border-color:rgba(123,92,240,.24);}
.compare-card:nth-child(3) .compare-tag{color:#b6521f;background:rgba(255,122,69,.1);border-color:rgba(255,122,69,.28);}
.compare-card h3{margin-top:14px;font-size:20px;font-weight:600;}
.compare-card dl{margin:14px 0 0;}
.compare-card dt{
  font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-top:14px;
}
.compare-card dd{margin:6px 0 0;font-size:14px;line-height:1.75;color:var(--text);}

/* 保护清单 */
.protect-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.protect-item{
  display:grid;grid-template-columns:34px minmax(0,1fr);gap:14px;align-items:start;
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;background:#fff;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.protect-item:hover{border-color:#cfe7e0;box-shadow:var(--sh-1);}
.protect-item .idx{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--purple-soft);color:var(--purple);
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;
}
.protect-item h3{font-size:16px;font-weight:600;line-height:1.5;}
.protect-item p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted);}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-q .arrow{
  flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:transform .22s ease-out,border-color .22s ease-out,background .22s ease-out;
}
.faq-q .arrow svg{width:12px;height:12px;color:var(--muted);}
.faq-item.open .faq-q{color:var(--brand-deep);}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);background:var(--brand-soft);border-color:rgba(18,169,140,.3);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--text);max-width:60em;}

/* CTA 带 */
.cta-band{margin:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:var(--r-lg);
  padding:44px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(18,169,140,.24),rgba(123,92,240,.16));
  pointer-events:none;
}
.cta-card > *{position:relative;z-index:1;}
.cta-card h2{color:#fff;font-size:28px;font-weight:700;}
.cta-card p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:40em;}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);}
.cta-points span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:26em;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* 移动端底部操作条 */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(14,31,29,.08);
}
.mobile-cta .btn{flex:1;height:44px;font-size:14px;padding:0 12px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .search-box{width:190px;}
  .brand-text{max-width:150px;}
}
@media (max-width:1023px){
  .nav-wrap{height:60px;}
  .site-header .container{padding:0 18px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 18px 20px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:none;}
  .nav-links a{padding:13px 10px;font-size:15px;}
  .nav-links a.active::after{display:none;}
  .nav-links a.active{background:var(--brand-soft);}
  .layout{grid-template-columns:1fr;gap:28px;padding:40px 0 64px;}
  .toc{position:static;}
  .panel{padding:28px 24px;}
  .badge-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-grid{grid-template-columns:1fr;}
  .cta-card{grid-template-columns:1fr;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  body{padding-bottom:76px;}
  .search-box{display:none;}
  .split{grid-template-columns:1fr;gap:22px;}
  .protect-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:23px;}
  .page-hero .container{padding-top:38px;padding-bottom:38px;}
  .page-hero p.lede{font-size:15px;}
  .panel{padding:24px 18px;border-radius:var(--r-md);}
  .mobile-cta{display:flex;}
  .cta-card h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .step{grid-template-columns:38px minmax(0,1fr);gap:14px;}
  .step-dot{width:38px;height:38px;font-size:14px;}
  .step:not(:last-child)::before{left:18px;top:38px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .badge-grid{grid-template-columns:1fr;}
  .brand-text{max-width:118px;font-size:15px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}