/* roulang page: index */
:root{
  --brand:#0FB5A5;
  --brand-deep:#0A8C80;
  --brand-soft:#E6F7F4;
  --accent:#FF7A45;
  --gold:#F2C14E;
  --bg:#F6FAF8;
  --card:#FFFFFF;
  --line:#E3EDE9;
  --ink:#12241F;
  --muted:#5B6B66;
  --dark:#0E1F1B;
  --dark-2:#123B33;
  --grad:linear-gradient(115deg,#0FB5A5 0%,#35D6B8 48%,#FF9A5A 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-1:0 1px 2px rgba(14,31,27,.04), 0 14px 36px -18px rgba(14,31,27,.14);
  --sh-2:0 2px 6px rgba(14,31,27,.06), 0 26px 52px -20px rgba(14,31,27,.24);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,250,248,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(14,31,27,.4)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:block;width:34px;height:34px;flex-shrink:0}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--brand-deep)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-deep)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:252px;height:42px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.14)}
.search-box svg{flex-shrink:0;color:var(--muted)}
.search-box input{flex:1;min-width:0;border:none;outline:none;background:transparent;font-size:14px}
.search-box input::placeholder{color:#9BAAA6}
.search-box kbd{
  font-size:11px;color:var(--muted);background:var(--bg);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;white-space:nowrap;
}
.nav-quick{font-size:14px;font-weight:600;color:var(--brand-deep);white-space:nowrap}
.nav-quick:hover{color:var(--accent)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--ink);background:#fff;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand-deep)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:16px 20px 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);margin-bottom:12px;
}
.mobile-drawer .drawer-search input{flex:1;border:none;background:transparent;outline:none;font-size:15px}
.mobile-drawer a.drawer-link{
  display:block;font-size:16px;line-height:48px;color:var(--ink);font-weight:500;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.is-active{color:var(--brand-deep);font-weight:700}
.mobile-drawer .btn{width:100%;margin-top:16px}
@media(max-width:1024px){
  .search-box{width:190px}
  .main-nav{gap:18px}
}
@media(max-width:900px){
  .main-nav,.search-box,.nav-quick{display:none}
  .menu-btn{display:inline-flex}
  .nav-right{gap:10px}
}
@media(max-width:520px){
  .brand-text{font-size:15px}
  .btn-sm{padding:0 14px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 10px 24px -14px rgba(15,181,165,.9);
}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(10,140,128,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(230,247,244,.16);border-color:rgba(255,255,255,.75);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--dark)}
.btn-white:hover{background:var(--brand-soft);transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;isolation:isolate;color:#fff}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-size:cover;background-position:center;
  transform:scale(1.03);
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(14,31,27,.92) 0%,rgba(14,31,27,.80) 46%,rgba(18,59,51,.72) 100%);
}
.hero-inner{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding-top:88px;padding-bottom:88px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  color:#E6F7F4;border:1px solid rgba(53,214,184,.5);
  background:rgba(15,181,165,.16);
}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,69,.24)}
.hero h1{
  margin-top:22px;
  font-size:44px;line-height:1.26;font-weight:800;letter-spacing:-.02em;
  max-width:15em;
}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:17px;color:rgba(230,247,244,.86);max-width:26em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:40px}
.hero-badge{
  padding:14px 16px;border-radius:var(--r-sm);
  background:rgba(230,247,244,.08);border:1px solid rgba(230,247,244,.18);
  backdrop-filter:blur(4px);
}
.hero-badge b{
  display:block;font-size:22px;font-weight:800;line-height:1.25;
  font-variant-numeric:tabular-nums;color:#fff;
}
.hero-badge span{display:block;margin-top:4px;font-size:12px;color:rgba(230,247,244,.72);line-height:1.6}
.hero-visual{position:relative}
.hero-visual .shot{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(230,247,244,.22);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.75);
}
.hero-visual .shot img{width:100%;height:340px;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-md);background:#fff;color:var(--ink);
  box-shadow:var(--sh-2);border:1px solid var(--line);
}
.hero-float b{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-deep)}
.hero-float span{font-size:12px;color:var(--muted);line-height:1.5}
@media(max-width:1024px){
  .hero h1{font-size:36px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:64px;padding-bottom:72px}
  .hero-visual .shot img{height:280px}
  .hero-badges{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .hero h1{font-size:29px;max-width:none}
  .hero-sub{font-size:16px}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto}
}

/* ---------- section basics ---------- */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-deep);
  padding:6px 14px;border-radius:999px;background:var(--brand-soft);
}
.section-head h2{margin-top:16px;font-size:32px;line-height:1.35;font-weight:800;letter-spacing:-.015em}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{font-size:15px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--accent)}
@media(max-width:768px){
  .section{padding:64px 0}
  .section-head h2{font-size:25px}
  .section-head{margin-bottom:32px}
}

/* ---------- quick cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.q-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.q-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,181,165,.35)}
.q-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-deep);margin-bottom:16px;
}
.q-card h3{font-size:17px;font-weight:700;line-height:1.5}
.q-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}
.q-card .card-link{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--brand-deep)}
.q-card .card-link:hover{color:var(--accent)}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative;counter-reset:step}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px 24px;box-shadow:var(--sh-1);
}
.flow-step::before{
  counter-increment:step;content:"0" counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:34px;padding:0 12px;border-radius:999px;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  color:#fff;background:var(--brand);margin-bottom:16px;
}
.flow-step.hot::before{background:var(--accent);box-shadow:0 0 0 6px rgba(255,122,69,.16)}
.flow-step h3{font-size:17px;font-weight:700}
.flow-step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}
.flow-step .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:12px;color:var(--brand-deep);background:var(--brand-soft);
  border-radius:999px;padding:4px 11px;line-height:1.6;
}
.tag.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted)}

/* ---------- highlights ---------- */
.hl-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.hl-main{
  grid-row:span 2;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.hl-main:hover,.hl-side:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,181,165,.35)}
.hl-main img{width:100%;height:300px;object-fit:cover}
.hl-body{padding:26px 26px 28px}
.hl-body h3{font-size:21px;font-weight:800;line-height:1.45}
.hl-body p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}
.hl-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;gap:18px;align-items:center;padding:18px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.hl-side img{width:118px;height:104px;object-fit:cover;border-radius:var(--r-sm);flex-shrink:0}
.hl-side h3{font-size:16.5px;font-weight:700;line-height:1.5}
.hl-side p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75}
.hl-arrow{margin-left:auto;color:var(--brand);opacity:0;transition:opacity .22s ease,transform .22s ease}
.hl-side:hover .hl-arrow{opacity:1;transform:translateX(4px)}
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hl-grid{grid-template-columns:1fr}
  .hl-main{grid-row:auto}
}
@media(max-width:640px){
  .grid-4,.grid-3,.grid-2,.flow{grid-template-columns:1fr}
  .hl-side{flex-direction:row;gap:14px}
  .hl-side img{width:96px;height:88px}
  .hl-main img{height:220px}
}

/* ---------- stats panel ---------- */
.stats-panel{
  background:linear-gradient(155deg,#0E1F1B 0%,#123B33 100%);
  border-radius:var(--r-lg);padding:48px;color:#fff;
  display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;
  box-shadow:0 40px 80px -48px rgba(14,31,27,.85);
  position:relative;overflow:hidden;
}
.stats-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,165,.42),transparent 68%);
}
.stats-panel h2{font-size:29px;font-weight:800;line-height:1.38;letter-spacing:-.015em}
.stats-panel > div > p{margin-top:14px;color:rgba(230,247,244,.76);font-size:15.5px}
.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;position:relative;z-index:1}
.stat-card{
  background:rgba(230,247,244,.07);border:1px solid rgba(230,247,244,.16);
  border-radius:var(--r-md);padding:20px;
}
.stat-card b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff}
.stat-card b i{font-style:normal;font-size:15px;color:var(--brand);margin-left:2px}
.stat-card span{display:block;margin-top:6px;font-size:13px;color:rgba(230,247,244,.72);line-height:1.7}
.voice-list{display:grid;gap:16px;margin-top:28px;position:relative;z-index:1}
.voice{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;
  box-shadow:var(--sh-1);
}
.voice p{font-size:15px;color:var(--ink);line-height:1.85}
.voice .who{display:flex;align-items:center;gap:10px;margin-top:14px}
.voice .who span.dot{width:8px;height:8px;border-radius:50%;background:var(--brand)}
.voice .who b{font-size:14px;font-weight:700}
.voice .who em{font-style:normal;font-size:13px;color:var(--muted)}
@media(max-width:1024px){
  .stats-panel{grid-template-columns:1fr;padding:36px;gap:32px}
}
@media(max-width:640px){
  .stats-panel{padding:28px 22px;border-radius:var(--r-md)}
  .stats-panel h2{font-size:23px}
  .stats-grid{grid-template-columns:1fr}
}

/* ---------- post list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,181,165,.35)}
.post-cover{display:block;overflow:hidden}
.post-cover img{width:100%;height:186px;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-cover img{transform:scale(1.05)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-body .chip{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:999px;padding:4px 12px;
}
.post-body h3{margin-top:14px;font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a:hover{color:var(--brand-deep)}
.post-body p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.78;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.post-meta .read{color:var(--brand-deep);font-weight:700}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-md);
}
.empty-state svg{color:rgba(15,181,165,.35);margin:0 auto 16px}
.empty-state p{color:var(--muted);font-size:15px}
.empty-state .btn{margin-top:20px}
@media(max-width:1024px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.post-grid{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.faq-item.open{border-color:rgba(15,181,165,.4);box-shadow:var(--sh-1);background:var(--bg)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:700;line-height:1.6;
}
.faq-q:hover{color:var(--brand-deep)}
.faq-icon{
  position:relative;flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1.5px solid var(--brand);color:var(--brand);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.8px}
.faq-icon::after{width:1.8px;height:10px;transition:transform .25s ease,opacity .25s ease}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{
  padding:0 22px 22px 26px;border-left:3px solid var(--brand);margin-left:22px;
  font-size:15px;line-height:1.9;color:var(--muted);
}
@media(max-width:640px){
  .faq-q{font-size:15.5px;padding:18px}
  .faq-a-inner{margin-left:16px;padding:0 18px 20px 16px}
}

/* ---------- join / cta ---------- */
.join{
  background:linear-gradient(140deg,#0E1F1B 0%,#123B33 62%,#0A8C80 140%);
  color:#fff;position:relative;overflow:hidden;
}
.join::before{
  content:"";position:absolute;left:-100px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.28),transparent 66%);
}
.join-inner{
  display:grid;grid-template-columns:1fr .92fr;gap:48px;align-items:center;
  padding:88px 0;position:relative;z-index:1;
}
.join h2{font-size:31px;font-weight:800;line-height:1.36;letter-spacing:-.015em}
.join .lead{margin-top:16px;font-size:16px;color:rgba(230,247,244,.82);max-width:30em}
.join-points{display:grid;gap:12px;margin-top:28px}
.join-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(230,247,244,.9)}
.join-points li::before{
  content:"";flex-shrink:0;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:var(--brand-soft);position:relative;
}
.join-points li svg{display:none}
.form-card{
  background:#fff;color:var(--ink);border-radius:var(--r-lg);padding:30px;
  box-shadow:0 40px 80px -40px rgba(0,0,0,.6);
}
.form-card h3{font-size:19px;font-weight:800}
.form-card .hint{margin-top:8px;font-size:13.5px;color:var(--muted)}
.field{margin-top:18px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.15)}
.field.err input,.field.err select{border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,122,69,.14)}
.field .msg{display:none;margin-top:6px;font-size:12.5px;color:var(--accent)}
.field.err .msg{display:block}
.form-card .btn{width:100%;margin-top:24px}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center}
.form-ok{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--brand-soft);color:var(--brand-deep);font-size:14px;font-weight:600;
}
.form-ok.show{display:block}
@media(max-width:1024px){
  .join-inner{grid-template-columns:1fr;padding:64px 0;gap:36px}
  .join h2{font-size:26px}
}
@media(max-width:640px){
  .form-card{padding:22px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(230,247,244,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-text{color:#fff}
.site-footer .about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(230,247,244,.6);max-width:32em}
.footer-col h4{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:.02em}
.footer-col ul{margin-top:16px;display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(230,247,244,.66)}
.footer-col a:hover{color:#fff}
.footer-col .plain{font-size:14px;color:rgba(230,247,244,.66);font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(230,247,244,.14);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(230,247,244,.5);
}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:36px}
}

/* roulang page: article */
:root{
  --brand:#0FB5A5;
  --brand-dark:#0A8C80;
  --brand-light:#E6F7F4;
  --accent:#FF7A45;
  --gold:#F2C14E;
  --bg:#F6FAF8;
  --card:#FFFFFF;
  --border:#E3EDE9;
  --ink:#12241F;
  --muted:#5B6B66;
  --dark:#0E1F1B;
  --dark-2:#123B33;
  --grad:linear-gradient(115deg,#0FB5A5 0%,#35D6B8 48%,#FF9A5A 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-sm:0 1px 2px rgba(14,31,27,.04),0 14px 36px -18px rgba(14,31,27,.14);
  --shadow-lg:0 2px 4px rgba(14,31,27,.06),0 26px 54px -22px rgba(14,31,27,.24);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.35;}
p{margin:0;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,250,248,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(14,31,27,.28);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;width:34px;height:34px;flex:0 0 34px;}
.brand-mark svg{width:34px;height:34px;display:block;}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand-dark);}
.main-nav{display:none;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0;
}
.nav-link::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 .22s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.header-actions{display:none;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:270px;height:42px;padding:0 12px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.14);}
.search-box svg{flex:0 0 16px;color:var(--muted);}
.search-box input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;font-size:14px;}
.search-box input::placeholder{color:#9AA9A4;}
.kbd{
  font-size:11px;color:var(--muted);background:var(--bg);border:1px solid var(--border);
  border-radius:999px;padding:2px 7px;line-height:1.4;flex:0 0 auto;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s ease;min-height:44px;
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(15,181,165,.9);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(10,140,128,.85);}
.btn-outline{background:#fff;border-color:var(--border);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.mobile-drawer{
  border-top:1px solid var(--border);background:#fff;padding:16px 0 22px;
}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;margin:0 0 14px;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--r-sm);
}
.mobile-drawer .drawer-search input{flex:1;border:0;outline:0;background:transparent;font-size:15px;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  font-size:16px;line-height:48px;height:48px;color:var(--ink);border-bottom:1px solid var(--border);
}
.mobile-drawer a.drawer-link.is-active{color:var(--brand-dark);font-weight:600;}
.mobile-drawer .drawer-cta{margin-top:16px;width:100%;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .header-actions{display:flex;}
  .nav-toggle,.mobile-drawer{display:none;}
}

/* ---------- Article hero ---------- */
.article-hero{padding:36px 0 8px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb .sep{color:#C3D3CE;}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.category-chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border:1px solid rgba(15,181,165,.28);
}
.category-chip.accent{background:rgba(255,122,69,.1);border-color:rgba(255,122,69,.34);color:#C74A18;}
.page-title{
  font-size:30px;line-height:1.35;margin:16px 0 18px;max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:14px;color:var(--muted);
}
.meta-row .divider{width:1px;height:14px;background:var(--border);}
.meta-row strong{color:var(--ink);font-weight:600;}
@media (min-width:768px){.article-hero{padding:52px 0 12px;}.page-title{font-size:38px;}}

/* ---------- Layout ---------- */
.article-main{padding:26px 0 72px;}
.article-layout{display:block;}
.article-col{max-width:100%;}
@media (min-width:1280px){
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;align-items:start;}
  .article-col{max-width:760px;margin-left:auto;margin-right:0;}
}
.article-cover{
  margin:0 0 32px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow-sm);background:#fff;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{font-size:13px;color:var(--muted);padding:12px 18px;background:#fff;text-align:center;}

.toc-aside{display:none;}
@media (min-width:1280px){.toc-aside{display:block;position:sticky;top:92px;}}
.toc-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:18px 16px;
  box-shadow:var(--shadow-sm);
}
.toc-card h2{font-size:13px;color:var(--muted);font-weight:700;letter-spacing:.06em;margin-bottom:12px;}
.toc-card ul li{margin-bottom:2px;}
.toc-card a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--muted);padding:6px 10px;border-radius:10px;
  border-left:2px solid transparent;
}
.toc-card a:hover{color:var(--brand-dark);background:var(--brand-light);}
.toc-card a.is-current{color:var(--brand-dark);font-weight:600;border-left-color:var(--brand);background:var(--brand-light);}

/* ---------- Article body ---------- */
.article-body{font-size:16.5px;line-height:1.9;color:#1B2E29;}
.article-body > * + *{margin-top:16px;}
.article-body p{margin:0 0 16px;}
.article-body h2{
  position:relative;font-size:23px;line-height:1.45;margin:38px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:var(--brand);
}
.article-body h3{font-size:19px;margin:28px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.85;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;width:16px;height:16px;border-radius:6px;
  font-size:11px;font-weight:700;color:#fff;background:var(--brand);display:flex;align-items:center;justify-content:center;
  line-height:1;padding-top:1px;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-light);border-left:4px solid var(--brand);
  border-radius:var(--r-sm);color:#164D45;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px auto 12px;}
.article-body figure{margin:24px 0;}
.article-body figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand-dark);border-bottom:1px solid rgba(10,140,128,.35);}
.article-body a:hover{color:var(--accent);border-bottom-color:rgba(255,122,69,.6);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
  background:#F1F5F3;border-radius:8px;padding:2px 6px;color:#124B42;
}
.article-body pre{
  background:#F1F5F3;border-radius:12px;padding:16px 18px;overflow-x:auto;margin:20px 0;
  border:1px solid var(--border);
}
.article-body pre code{background:none;padding:0;font-size:14px;line-height:1.7;}
.article-body .table-scroll{
  overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-sm);margin:22px 0;background:#fff;
  -webkit-overflow-scrolling:touch;
}
.article-body table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px;}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);}
.article-body th{background:var(--brand-light);color:#124B42;font-weight:700;white-space:nowrap;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}

/* ---------- Tags / pager / related ---------- */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  background:#fff;border:1px solid var(--border);color:var(--muted);transition:all .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-light);}

.block-title{font-size:22px;margin-bottom:8px;}
.block-sub{font-size:14.5px;color:var(--muted);margin-bottom:22px;}

.pager{
  display:grid;grid-template-columns:1fr;gap:16px;margin:44px 0 0;
}
@media (min-width:640px){.pager{grid-template-columns:1fr 1fr;}}
.pager-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:18px 20px;
  display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-sm);transition:all .22s ease;
}
.pager-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,181,165,.35);}
.pager-card .label{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.pager-card .title{font-size:16px;font-weight:700;line-height:1.5;}
.pager-card:hover .title{color:var(--brand-dark);}

.related{margin-top:56px;}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.read-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.read-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,181,165,.35);}
.read-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.read-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.read-card:hover .thumb img{transform:scale(1.04);}
.read-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.read-card h3{font-size:17px;line-height:1.55;}
.read-card:hover h3{color:var(--brand-dark);}
.read-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}
.read-card .link-layer{position:absolute;inset:0;z-index:2;}
.read-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-section{padding:64px 0 0;}
.faq-list{display:grid;gap:14px;margin-top:8px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{background:var(--bg);border-color:rgba(15,181,165,.35);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 22px;font-size:16.5px;font-weight:700;color:var(--ink);
}
.faq-item.is-open .faq-q{
  border-left:3px solid var(--brand);padding-left:19px;color:var(--brand-dark);
}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;line-height:1;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a .inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:80px;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(135deg,#0E1F1B 0%,#123B33 100%);
  position:relative;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,165,.4),transparent 66%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:32px;padding:38px 28px;}
@media (min-width:768px){.cta-inner{padding:52px 48px;}}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}}
.cta-copy h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.76);font-size:15.5px;line-height:1.85;margin-bottom:20px;}
.cta-points{display:grid;gap:10px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.86);font-size:14.5px;}
.cta-points li svg{flex:0 0 18px;margin-top:4px;color:var(--accent);}
.form-card{
  background:#fff;border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--shadow-lg);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .hint{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--muted);margin-bottom:6px;}
.input,.select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--border);
  background:#fff;font-size:15px;outline:0;transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.input{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.input:focus,.select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.14);}
.form-card .btn-primary{width:100%;margin-top:6px;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px;text-align:center;}
.form-msg{
  display:none;margin-top:12px;font-size:13.5px;color:var(--brand-dark);background:var(--brand-light);
  border:1px solid rgba(15,181,165,.3);border-radius:12px;padding:10px 14px;
}
.form-msg.is-visible{display:block;}

/* ---------- Empty state ---------- */
.empty-state{
  background:#fff;border:1px dashed var(--border);border-radius:var(--r-lg);padding:64px 24px;text-align:center;
  box-shadow:var(--shadow-sm);
}
.empty-state svg{width:64px;height:64px;color:rgba(15,181,165,.3);margin:0 auto 18px;}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:96px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-weight:800;font-size:17px;}
.footer-col h4{font-size:14px;color:#8FE6DA;margin-bottom:14px;font-weight:700;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col .plain{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col a:hover{color:#fff;}
.footer-col .about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin:0;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:520px){
  .page-title{font-size:25px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:20px;}
  .cta-copy h2{font-size:22px;}
  .footer-bottom{justify-content:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#0FB5A5; --brand-deep:#0A8C80; --brand-soft:#E6F7F4;
  --accent:#FF7A45; --gold:#F2C14E;
  --bg:#F6FAF8; --card:#FFFFFF; --line:#E3EDE9;
  --ink:#12241F; --muted:#5B6B66;
  --dark:#0E1F1B; --dark-2:#123B33;
  --grad:linear-gradient(115deg,#0FB5A5 0%,#35D6B8 48%,#FF9A5A 100%);
  --r-xl:24px; --r-lg:18px; --r-md:14px;
  --sh-card:0 1px 2px rgba(14,31,27,.04),0 14px 36px -18px rgba(14,31,27,.14);
  --sh-card-hover:0 2px 6px rgba(14,31,27,.06),0 28px 52px -22px rgba(14,31,27,.26);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font-family:inherit}
img{max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,250,248,.82);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 32px -24px rgba(14,31,27,.45)}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;height:64px;
  display:flex;align-items:center;gap:16px;
}
@media(min-width:768px){.header-inner{padding:0 32px}}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{display:inline-flex;line-height:0;filter:drop-shadow(0 6px 14px rgba(15,181,165,.28))}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.main-nav{display:none;align-items:center;gap:2px;margin-left:14px}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;padding:9px 13px;font-size:15px;font-weight:500;
  color:var(--muted);border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-deep);background:rgba(15,181,165,.07)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.cmd-search{
  display:none;align-items:center;gap:8px;
  width:256px;height:40px;padding:0 10px 0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  transition:border-color .2s ease,box-shadow .2s ease;
}
@media(min-width:1024px){.cmd-search{display:flex}}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.14)}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:14px;color:var(--ink);
}
.cmd-search input::placeholder{color:#9aada7}
.cmd-kbd{
  flex:none;font-size:11px;color:var(--muted);background:var(--bg);
  border:1px solid var(--line);border-radius:7px;padding:2px 6px;line-height:1.4;
}
.quick-link{
  display:none;font-size:14px;font-weight:600;color:var(--brand-deep);
  padding:8px 6px;border-radius:10px;transition:background .2s ease;
}
@media(min-width:1024px){.quick-link{display:inline-flex}}
.quick-link:hover{background:var(--brand-soft)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -16px rgba(15,181,165,.95)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(10,140,128,.9)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-block{width:100%}
.header-cta{padding:0 16px;font-size:14px}
.header-cta .cta-label{display:none}
@media(min-width:520px){.header-cta .cta-label{display:inline}}
.mobile-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);color:var(--ink);cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.mobile-toggle:hover{border-color:var(--brand);color:var(--brand-deep)}
@media(min-width:1024px){.mobile-toggle{display:none}}

.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(14,31,27,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;left:0;right:0;top:0;max-height:100%;overflow:auto;
  background:#fff;border-radius:0 0 var(--r-xl) var(--r-xl);padding:20px;
  transform:translateY(-14px);transition:transform .25s ease;
  box-shadow:0 30px 60px -24px rgba(14,31,27,.35);
}
.mobile-drawer.is-open .drawer-panel{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-search{
  display:flex;align-items:center;gap:8px;margin-top:16px;
  height:44px;padding:0 12px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--r-md);
}
.drawer-search input{flex:1;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink)}
.drawer-nav{display:grid;gap:4px;margin-top:14px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;
  font-size:16px;font-weight:600;color:var(--ink);border-radius:var(--r-md);
  transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--bg)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand-deep)}
.drawer-cta{margin-top:16px}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;overflow:hidden;
  padding:34px 0 62px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(860px 420px at 92% -18%,rgba(15,181,165,.18),transparent 62%),
    radial-gradient(680px 340px at 0% 118%,rgba(255,122,69,.14),transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
}
.page-banner::before{
  content:"";position:absolute;width:520px;height:520px;right:-170px;top:-250px;
  border-radius:50%;border:1px solid rgba(15,181,165,.22);pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;width:340px;height:340px;right:-60px;top:-150px;
  border-radius:50%;border:1px dashed rgba(255,122,69,.26);pointer-events:none;
}
.banner-inner{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted);transition:color .2s ease}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs .sep{color:#bccbc6}
.crumbs .now{color:var(--ink);font-weight:600}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:18px;
  font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--brand-deep);
  background:rgba(255,255,255,.76);border:1px solid rgba(15,181,165,.3);border-radius:999px;
}
.banner-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,69,.16)}
.banner-title{
  margin:0 0 16px;max-width:17em;
  font-size:clamp(30px,5.4vw,46px);line-height:1.25;font-weight:800;letter-spacing:-.02em;
}
.banner-title .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-lead{margin:0 0 28px;max-width:46em;font-size:17px;line-height:1.85;color:var(--muted)}
.badges{display:flex;flex-wrap:wrap;gap:12px}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:10px 18px;border-radius:999px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-card);
}
.stat-badge .num{font-size:20px;font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1}
.stat-badge .lbl{font-size:12.5px;color:var(--muted)}

/* ============ 通用板块 ============ */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:46em;margin:0 auto 44px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:16px;
  font-size:12px;font-weight:700;letter-spacing:.05em;color:var(--brand-deep);
  background:var(--brand-soft);border:1px solid rgba(15,181,165,.24);border-radius:999px;
}
.section-title{margin:0 0 12px;font-size:clamp(23px,3.4vw,34px);line-height:1.3;font-weight:800;letter-spacing:-.01em}
.section-desc{margin:0;font-size:16px;color:var(--muted)}

.split{display:grid;gap:34px;align-items:center}
@media(min-width:1024px){
  .split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px}
  .split.reverse .split-media{order:2}
}
.split-media{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  border:1px solid var(--line);box-shadow:var(--sh-card);aspect-ratio:16/11;background:#dceee9;
}
.split-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .55s ease}
.split-media:hover img{transform:scale(1.035)}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,31,27,0) 42%,rgba(14,31,27,.46) 100%);
}
.media-caption{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;font-size:13px;line-height:1.7}
.split-body p{margin:0 0 16px;font-size:16.5px;line-height:1.9;color:#2c443d}
.split-body p:last-child{margin-bottom:0}

.check-list{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;line-height:1.8;color:#22392f}
.check-list .ico{
  flex:none;width:22px;height:22px;margin-top:4px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:12px;font-weight:800;
}

/* 流程条 */
.steps{display:grid;gap:18px}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-card);height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(15,181,165,.35);box-shadow:var(--sh-card-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:30px;padding:0 12px;margin-bottom:14px;
  border-radius:999px;background:var(--ink);color:#fff;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
}
.step-card.is-key .step-num{background:var(--accent);box-shadow:0 10px 22px -12px rgba(255,122,69,.9)}
.step-title{margin:0 0 8px;font-size:17px;font-weight:700}
.step-text{margin:0;font-size:14.5px;line-height:1.8;color:var(--muted)}
@media(min-width:768px){
  .step-card:not(:last-child)::after{
    content:"";position:absolute;top:37px;right:-20px;width:20px;height:2px;
    background:linear-gradient(90deg,rgba(15,181,165,.55),rgba(15,181,165,.06));
  }
}

.grid-cards{display:grid;gap:20px}
@media(min-width:640px){.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.grid-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-card);height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(15,181,165,.35);box-shadow:var(--sh-card-hover)}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;margin-bottom:14px;
  font-size:12px;font-weight:700;border-radius:999px;
  color:var(--brand-deep);background:var(--brand-soft);border:1px solid rgba(15,181,165,.24);
}
.chip.warn{color:#c0491c;background:#FFF1EA;border-color:rgba(255,122,69,.32)}
.card-title{margin:0 0 10px;font-size:17px;font-weight:700;line-height:1.55}
.card-text{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* 深色面板 */
.dark-panel{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:34px 22px;color:#dcebe7;
  background:linear-gradient(150deg,#0E1F1B 0%,#123B33 100%);
}
@media(min-width:768px){.dark-panel{padding:48px}}
.dark-panel::before{
  content:"";position:absolute;width:460px;height:460px;right:-150px;bottom:-220px;
  border-radius:50%;background:radial-gradient(circle,rgba(15,181,165,.36),transparent 66%);
}
.dark-panel::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--grad);opacity:.85;
}
.panel-inner{position:relative;z-index:2}
.panel-title{margin:0 0 12px;font-size:clamp(22px,3.1vw,30px);line-height:1.32;font-weight:800;color:#fff}
.panel-text{margin:0;max-width:46em;font-size:15.5px;line-height:1.9;color:#a9c6bf}
.self-check{display:grid;gap:12px;margin-top:28px}
@media(min-width:1024px){.self-check{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 20px}}
.check-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
}
.check-row .label{font-size:15px;color:#dbeae6}
.tag{
  flex:none;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap;
}
.tag-ok{color:#7ef0d8;background:rgba(15,181,165,.18);border:1px solid rgba(15,181,165,.42)}
.tag-warn{color:#ffc7a8;background:rgba(255,122,69,.16);border:1px solid rgba(255,122,69,.42)}
.tag-gold{color:#ffe6a8;background:rgba(242,193,78,.14);border:1px solid rgba(242,193,78,.4)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(15,181,165,.35)}
.faq-item.is-open{background:var(--bg);border-color:rgba(15,181,165,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{
  margin:0 22px 20px 22px;padding-left:16px;
  border-left:3px solid var(--brand);
  font-size:15px;line-height:1.85;color:var(--muted);
}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:30px 22px;display:grid;gap:30px;
  background:linear-gradient(135deg,#0E1F1B 0%,#123B33 60%,#0A8C80 135%);
}
@media(min-width:1024px){.cta-band{grid-template-columns:1.05fr .95fr;padding:48px;gap:48px;align-items:center}}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;left:-160px;top:-220px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,122,69,.28),transparent 66%);
}
.cta-copy{position:relative;z-index:2}
.cta-title{margin:0 0 12px;font-size:clamp(23px,3.2vw,32px);line-height:1.3;font-weight:800;color:#fff}
.cta-text{margin:0 0 20px;font-size:15.5px;line-height:1.9;color:#b6d2cb}
.cta-points{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#d4e6e1}
.cta-points .ico{
  flex:none;width:20px;height:20px;margin-top:4px;border-radius:999px;
  background:rgba(15,181,165,.22);color:#7ef0d8;display:grid;place-items:center;font-size:11px;font-weight:800;
}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-xl);
  padding:24px;box-shadow:0 30px 60px -30px rgba(0,0,0,.45);
}
@media(min-width:768px){.cta-form{padding:28px}}
.field{margin-bottom:14px}
.field label{display:block;margin-bottom:6px;font-size:13px;font-weight:600;color:var(--muted)}
.field input,.field textarea,.field select{
  width:100%;min-height:44px;padding:12px 14px;
  font-size:15px;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:92px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,181,165,.14);
}
.form-note{margin:12px 0 0;font-size:12.5px;line-height:1.7;color:var(--muted)}
.form-ok{
  display:none;margin-top:12px;padding:10px 14px;font-size:14px;
  color:var(--brand-deep);background:var(--brand-soft);
  border:1px solid rgba(15,181,165,.3);border-radius:var(--r-md);
}
.form-ok.is-visible{display:block}

/* 页脚 */
.site-footer{background:var(--dark);color:#9fb6b0;padding:54px 0 0;margin-top:0}
@media(min-width:768px){.site-footer{padding:72px 0 0}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .brand-text{color:#fff;font-size:17px;font-weight:800}
.site-footer .about{margin:0;max-width:34em;font-size:14px;line-height:1.9;color:#8fa8a2}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:700;letter-spacing:.02em;color:#7fe1cf}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:#94aca6;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-col .plain{font-size:14px;color:#94aca6}
.footer-bottom{
  margin-top:44px;padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:#7d968f;
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --brand:#0FB5A5;
    --brand-deep:#0A8C80;
    --brand-soft:#E6F7F4;
    --accent:#FF7A45;
    --data:#F2C14E;
    --bg:#F6FAF8;
    --card:#FFFFFF;
    --border:#E3EDE9;
    --ink:#12241F;
    --muted:#5B6B66;
    --dark-1:#0E1F1B;
    --dark-2:#123B33;
    --grad:linear-gradient(115deg,#0FB5A5 0%,#35D6B8 48%,#FF9A5A 100%);
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --sh-1:0 1px 2px rgba(14,31,27,.04),0 14px 36px -18px rgba(14,31,27,.14);
    --sh-2:0 2px 4px rgba(14,31,27,.06),0 24px 52px -22px rgba(14,31,27,.24);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.85;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 20px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(246,250,248,.82);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
    transition:box-shadow .25s ease,background .25s ease;
  }
  .site-header.is-scrolled{
    box-shadow:0 10px 30px -18px rgba(14,31,27,.3);
    background:rgba(246,250,248,.94);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:24px;
    height:64px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand-mark{display:inline-flex;}
  .brand-text{
    font-size:17px;
    font-weight:800;
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .main-nav{
    display:flex;
    align-items:center;
    gap:6px;
    margin-left:8px;
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:40px;
    padding:0 12px;
    font-size:15px;
    font-weight:500;
    color:var(--muted);
    border-radius:10px;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--brand-deep);background:rgba(15,181,165,.08);}
  .nav-link.is-active{color:var(--ink);font-weight:700;}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:12px;
    right:12px;
    bottom:4px;
    height:2px;
    border-radius:2px;
    background:var(--brand);
  }
  .header-tools{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }
  .cmd-search{
    position:relative;
    display:flex;
    align-items:center;
    width:264px;
    height:40px;
    padding:0 10px 0 34px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-sm);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .cmd-search:focus-within{
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(15,181,165,.14);
  }
  .cmd-search svg{
    position:absolute;
    left:11px;
    width:16px;
    height:16px;
    stroke:var(--muted);
    fill:none;
    stroke-width:1.9;
    stroke-linecap:round;
  }
  .cmd-search input{
    width:100%;
    border:0;
    background:transparent;
    font-size:14px;
    outline:none;
  }
  .cmd-search input::placeholder{color:#9BAAA5;}
  .kbd{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:34px;
    height:22px;
    padding:0 6px;
    font-size:11px;
    font-weight:600;
    color:var(--muted);
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:999px;
  }

  /* 按钮 */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 20px;
    font-size:15px;
    font-weight:600;
    border-radius:var(--r-sm);
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
  .btn-primary{
    background:var(--brand);
    color:#fff;
    box-shadow:0 10px 24px -14px rgba(15,181,165,.9);
  }
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(15,181,165,.85);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{
    background:#fff;
    border-color:var(--border);
    color:var(--ink);
  }
  .btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
  .btn-ghost{
    background:transparent;
    color:var(--muted);
  }
  .btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
  .btn-light{
    background:#fff;
    color:var(--dark-1);
  }
  .btn-light:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}

  .nav-toggle{
    display:none;
    width:44px;
    height:44px;
    align-items:center;
    justify-content:center;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-sm);
    cursor:pointer;
  }
  .nav-toggle span{
    position:relative;
    display:block;
    width:18px;
    height:2px;
    background:var(--ink);
    border-radius:2px;
  }
  .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;}

  .mobile-drawer{
    display:none;
    border-top:1px solid var(--border);
    background:#fff;
    padding:16px 20px 24px;
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer .cmd-search{width:100%;margin-bottom:12px;}
  .drawer-link{
    display:flex;
    align-items:center;
    height:48px;
    font-size:16px;
    font-weight:500;
    color:var(--ink);
    border-bottom:1px solid var(--border);
  }
  .drawer-link.is-active{color:var(--brand-deep);font-weight:700;}
  .mobile-drawer .btn{width:100%;margin-top:16px;}

  /* ============ 页头横幅 ============ */
  .page-hero{
    position:relative;
    padding:56px 0 48px;
    background:
      linear-gradient(180deg,rgba(230,247,244,.88) 0%,rgba(246,250,248,.94) 100%),
      url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    overflow:hidden;
    border-bottom:1px solid var(--border);
  }
  .page-hero::after{
    content:"";
    position:absolute;
    top:-160px;
    right:-120px;
    width:420px;
    height:420px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(15,181,165,.24) 0%,rgba(15,181,165,0) 68%);
    pointer-events:none;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    bottom:-180px;
    left:-100px;
    width:360px;
    height:360px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(255,122,69,.18) 0%,rgba(255,122,69,0) 70%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:1;max-width:860px;}
  .crumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--muted);
    margin-bottom:18px;
  }
  .crumb a:hover{color:var(--brand-deep);}
  .crumb .sep{color:#B9C6C1;}
  .page-hero h1{
    font-size:36px;
    line-height:1.3;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .hero-sub{
    margin-top:12px;
    font-size:17px;
    line-height:1.8;
    color:var(--muted);
    max-width:720px;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:26px;
  }
  .stat-badge{
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 18px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:999px;
    box-shadow:var(--sh-1);
  }
  .stat-badge strong{
    font-size:20px;
    font-weight:800;
    color:var(--brand-deep);
    font-variant-numeric:tabular-nums;
    line-height:1;
  }
  .stat-badge span{font-size:12px;color:var(--muted);}
  .stat-badge.accent strong{color:var(--accent);}

  /* ============ 通用板块 ============ */
  .section{padding:64px 0;}
  .section-head{max-width:720px;margin-bottom:32px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:5px 14px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.04em;
    color:var(--brand-deep);
    background:var(--brand-soft);
    border:1px solid rgba(15,181,165,.24);
    border-radius:999px;
    margin-bottom:14px;
  }
  .eyebrow.orange{
    color:#C24A1D;
    background:#FFF1EA;
    border-color:rgba(255,122,69,.3);
  }
  .section-head h2{
    font-size:28px;
    line-height:1.35;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .section-head p{
    margin-top:12px;
    font-size:16px;
    color:var(--muted);
  }

  /* ============ 快速判断三卡 ============ */
  .grid-3{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .judge-card{
    position:relative;
    display:flex;
    flex-direction:column;
    padding:26px 24px 24px;
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .judge-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--sh-2);
    border-color:rgba(15,181,165,.35);
  }
  .judge-card .num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:12px;
    background:var(--brand-soft);
    color:var(--brand-deep);
    font-size:16px;
    font-weight:800;
    font-variant-numeric:tabular-nums;
  }
  .judge-card h3{
    margin-top:16px;
    font-size:19px;
    font-weight:700;
    line-height:1.5;
  }
  .judge-card .phen{
    margin-top:8px;
    font-size:15px;
    color:var(--muted);
  }
  .judge-card .fix{
    margin-top:16px;
    padding-top:16px;
    border-top:1px dashed var(--border);
    font-size:15px;
    color:var(--ink);
  }
  .judge-card .fix b{color:var(--brand-deep);}
  .mini-tag{
    align-self:flex-start;
    margin-top:16px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 12px;
    font-size:12px;
    font-weight:600;
    color:#8A5A16;
    background:#FFF6E2;
    border:1px solid rgba(242,193,78,.45);
    border-radius:999px;
  }

  /* ============ 对照条 ============ */
  .compare-wrap{
    position:relative;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    overflow:hidden;
  }
  .table-scroll{
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
  }
  .table-scroll::-webkit-scrollbar{height:8px;}
  .table-scroll::-webkit-scrollbar-thumb{background:#CDDBD6;border-radius:999px;}
  .compare-table{
    width:100%;
    min-width:760px;
    border-collapse:collapse;
  }
  .compare-table th{
    padding:18px 22px;
    text-align:left;
    font-size:13px;
    font-weight:700;
    letter-spacing:.03em;
    color:var(--brand-deep);
    background:var(--brand-soft);
    border-bottom:1px solid var(--border);
    white-space:nowrap;
  }
  .compare-table td{
    padding:18px 22px;
    font-size:15px;
    color:var(--ink);
    border-bottom:1px solid var(--border);
    vertical-align:top;
  }
  .compare-table tbody tr:last-child td{border-bottom:0;}
  .compare-table tbody tr{transition:background .2s ease;}
  .compare-table tbody tr:hover{background:#FAFDFC;}
  .compare-table td:first-child{font-weight:700;}
  .compare-table td.cause{color:var(--muted);}
  .compare-table td.action{color:var(--brand-deep);font-weight:600;}
  .table-fade{
    position:absolute;
    top:0;
    right:0;
    width:56px;
    height:100%;
    background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.96));
    pointer-events:none;
  }
  .strip-hint{
    display:flex;
    align-items:center;
    gap:8px;
    margin-top:14px;
    font-size:13px;
    color:var(--muted);
  }
  .strip-hint svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

  /* ============ 双列清单 + 配图 ============ */
  .checklist-layout{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:28px;
    align-items:start;
  }
  .list-card{
    padding:26px 24px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
  }
  .list-card + .list-card{margin-top:24px;}
  .list-card h3{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:19px;
    font-weight:700;
  }
  .list-card h3 i{
    display:inline-flex;
    width:8px;
    height:22px;
    border-radius:999px;
    background:var(--grad);
  }
  .list-card ol,
  .list-card ul{margin-top:16px;display:grid;gap:12px;}
  .list-card li{
    display:grid;
    grid-template-columns:22px 1fr;
    gap:10px;
    font-size:15.5px;
    color:var(--ink);
  }
  .tick{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:20px;
    height:20px;
    margin-top:4px;
    border-radius:999px;
    background:var(--brand-soft);
    color:var(--brand-deep);
    font-size:12px;
    font-weight:800;
  }
  .cross{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:20px;
    height:20px;
    margin-top:4px;
    border-radius:999px;
    background:#F1F5F3;
    color:#95A5A0;
    font-size:12px;
    font-weight:800;
  }
  .figure-card{
    overflow:hidden;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
  }
  .figure-card img{
    width:100%;
    height:260px;
    object-fit:cover;
  }
  .figure-card figcaption{
    padding:16px 20px 18px;
    font-size:14px;
    color:var(--muted);
    line-height:1.75;
  }
  .figure-card figcaption b{color:var(--ink);font-weight:700;}
  .chip-row{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:18px;
  }
  .chip{
    padding:5px 12px;
    font-size:12.5px;
    font-weight:600;
    color:var(--brand-deep);
    background:var(--brand-soft);
    border-radius:999px;
  }
  .chip.orange{color:#C24A1D;background:#FFF1EA;}

  /* ============ 折叠说明区 ============ */
  .detail-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:20px;
  }
  .detail-item{
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-md);
    box-shadow:var(--sh-1);
    overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .detail-item[open]{
    border-color:rgba(15,181,165,.4);
    box-shadow:var(--sh-2);
  }
  .detail-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:18px 22px;
    font-size:16px;
    font-weight:700;
    cursor:pointer;
    list-style:none;
  }
  .detail-item summary::-webkit-details-marker{display:none;}
  .detail-item summary::after{
    content:"";
    flex:0 0 auto;
    width:12px;
    height:12px;
    border-right:2px solid var(--brand);
    border-bottom:2px solid var(--brand);
    transform:rotate(45deg);
    transition:transform .25s ease;
    margin-top:-4px;
  }
  .detail-item[open] summary::after{transform:rotate(-135deg);margin-top:4px;}
  .detail-body{
    padding:0 22px 20px;
    font-size:15px;
    color:var(--muted);
    border-top:1px solid var(--border);
    padding-top:16px;
  }
  .detail-body strong{color:var(--ink);}

  /* ============ FAQ 手风琴 ============ */
  .faq-list{
    display:grid;
    gap:14px;
    max-width:900px;
  }
  .faq-item{
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-md);
    box-shadow:var(--sh-1);
    overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .faq-item.is-open{
    background:var(--bg);
    border-color:rgba(15,181,165,.4);
    box-shadow:var(--sh-2);
  }
  .faq-trigger{
    position:relative;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    width:100%;
    padding:18px 22px 18px 24px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16.5px;
    font-weight:700;
    line-height:1.6;
    cursor:pointer;
  }
  .faq-item.is-open .faq-trigger::before{
    content:"";
    position:absolute;
    left:0;
    top:14px;
    bottom:14px;
    width:3px;
    border-radius:0 3px 3px 0;
    background:var(--brand);
  }
  .faq-icon{
    position:relative;
    flex:0 0 auto;
    width:22px;
    height:22px;
    border-radius:999px;
    background:var(--brand-soft);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    top:50%;
    left:50%;
    background:var(--brand-deep);
    border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:10px;height:2px;}
  .faq-icon::after{width:2px;height:10px;transition:opacity .2s ease,transform .2s ease;}
  .faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
  .faq-panel{
    padding:0 24px 20px 24px;
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
  }
  .faq-panel[hidden]{display:none;}
  .faq-panel p + p{margin-top:10px;}
  .faq-panel b{color:var(--ink);}

  /* ============ CTA 深色区 ============ */
  .cta-band{
    padding:64px 0;
    background:linear-gradient(135deg,var(--dark-1) 0%,var(--dark-2) 100%);
    position:relative;
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    top:-140px;
    left:-80px;
    width:420px;
    height:420px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(15,181,165,.32) 0%,rgba(15,181,165,0) 70%);
    pointer-events:none;
  }
  .cta-layout{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:1fr 460px;
    gap:40px;
    align-items:center;
  }
  .cta-copy h2{
    color:#fff;
    font-size:30px;
    line-height:1.4;
    font-weight:800;
  }
  .cta-copy p{
    margin-top:14px;
    font-size:16px;
    color:rgba(255,255,255,.74);
    max-width:520px;
  }
  .cta-points{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:24px;
  }
  .cta-points span{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:7px 14px;
    font-size:13px;
    font-weight:600;
    color:#fff;
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.18);
    border-radius:999px;
  }
  .cta-points span::before{
    content:"";
    width:6px;
    height:6px;
    border-radius:999px;
    background:var(--accent);
  }
  .form-card{
    padding:28px 26px;
    background:#fff;
    border-radius:var(--r-lg);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.55);
  }
  .form-card h3{
    font-size:19px;
    font-weight:800;
  }
  .form-card .tip{
    margin-top:6px;
    font-size:13.5px;
    color:var(--muted);
  }
  .field{margin-top:16px;}
  .field label{
    display:block;
    font-size:13.5px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:6px;
  }
  .field input,
  .field select,
  .field textarea{
    width:100%;
    padding:12px 14px;
    font-size:15px;
    background:#FBFDFC;
    border:1px solid var(--border);
    border-radius:var(--r-sm);
    outline:none;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field textarea{min-height:96px;resize:vertical;line-height:1.7;}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    background:#fff;
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(15,181,165,.14);
  }
  .field .err{
    display:none;
    margin-top:6px;
    font-size:12.5px;
    color:#D9481F;
  }
  .field.has-error input,
  .field.has-error select,
  .field.has-error textarea{
    border-color:#D9481F;
    box-shadow:0 0 0 4px rgba(217,72,31,.12);
  }
  .field.has-error .err{display:block;}
  .form-card .btn{width:100%;margin-top:20px;}
  .form-note{
    margin-top:12px;
    font-size:12.5px;
    color:var(--muted);
    text-align:center;
  }

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--dark-1);
    color:rgba(255,255,255,.7);
    padding:56px 0 24px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:32px;
    padding-bottom:36px;
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
  }
  .footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800;}
  .footer-col .about{
    font-size:14px;
    line-height:1.85;
    color:rgba(255,255,255,.6);
    max-width:340px;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:700;
    color:#7EE3D2;
    margin-bottom:14px;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{
    font-size:14px;
    color:rgba(255,255,255,.66);
    transition:color .2s ease;
  }
  .footer-col a:hover{color:#fff;}
  .footer-col .plain{color:rgba(255,255,255,.66);font-size:14px;}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:space-between;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:rgba(255,255,255,.5);
  }

  /* ============ 响应式 ============ */
  @media (min-width:768px){
    .container{padding:0 32px;}
    .section{padding:80px 0;}
  }
  @media (min-width:1024px){
    .section{padding:96px 0;}
    .page-hero{padding:72px 0 64px;}
  }
  @media (max-width:1023px){
    .main-nav{display:none;}
    .cmd-search{display:none;}
    .header-tools .btn-ghost{display:none;}
    .nav-toggle{display:inline-flex;}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
    .checklist-layout{grid-template-columns:1fr;}
    .cta-layout{grid-template-columns:1fr;gap:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:767px){
    .page-hero h1{font-size:27px;}
    .section-head h2{font-size:23px;}
    .cta-copy h2{font-size:24px;}
    .grid-3{grid-template-columns:1fr;}
    .detail-grid{grid-template-columns:1fr;}
    .header-tools .btn-primary{min-height:40px;padding:0 14px;font-size:14px;}
    .figure-card img{height:200px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15.5px;}
    .footer-grid{grid-template-columns:1fr;}
    .stat-badge{padding:9px 14px;}
    .stat-badge strong{font-size:18px;}
    .hero-badges{gap:10px;}
    .form-card{padding:22px 18px;}
  }