/* roulang page: index */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-hover:0 14px 32px rgba(16,60,48,.14);
  --radius-card:22px;
  --radius-img:16px;
  --radius-input:12px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-500)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:3px solid rgba(23,166,126,.5);outline-offset:2px;border-radius:8px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
@media (max-width:768px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--page);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,59,50,.14)}
.brand-bar{background:#fff;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900);font-weight:800}
.brand:hover{color:var(--brand-700)}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(15,111,92,.28);
}
.logo-mark svg{width:22px;height:22px;fill:#fff}
.brand-name{font-size:19px;letter-spacing:-.01em;line-height:1.3;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.36);filter:brightness(1.04)}
.btn-ghost{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-300)}
.btn-ghost:hover{background:rgba(127,217,189,.18);color:var(--brand-700);border-color:var(--brand-500)}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-sm{padding:9px 16px;font-size:14px}
.icon-btn{
  width:42px;height:42px;border-radius:999px;display:grid;place-items:center;
  border:1.5px solid var(--line);background:#fff;color:var(--brand-700);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:rgba(127,217,189,.2);border-color:var(--brand-300);transform:translateY(-1px)}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.search-panel{background:#fff;border-bottom:1px solid var(--line);padding:12px 0}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1;min-width:0;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:11px 16px;background:var(--page);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-form input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,166,126,.16)}

.channel-bar{background:rgba(127,217,189,.16);border-bottom:1px solid var(--line)}
.channel-list{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-600);background:rgba(255,255,255,.75);
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.channel-link:hover{background:#fff;color:var(--brand-700);box-shadow:0 6px 14px rgba(16,60,48,.1)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 8px 18px rgba(15,111,92,.28)}
.channel-link .dot{width:6px;height:6px;border-radius:999px;background:var(--gold-400)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:76px 0 88px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.26}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 18% 22%,rgba(23,166,126,.42),transparent 55%),
             radial-gradient(circle at 82% 76%,rgba(249,115,22,.22),transparent 52%),
             linear-gradient(180deg,rgba(11,59,50,.72) 0%,rgba(11,59,50,.92) 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-900);background:rgba(127,217,189,.9);
}
.hero h1{
  margin-top:22px;font-size:clamp(28px,3.6vw,44px);line-height:1.28;
  font-weight:800;letter-spacing:-.01em;color:#fff;
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.micro-metrics{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:34px}
.micro-metrics li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82)}
.micro-metrics svg{width:17px;height:17px;fill:none;stroke:var(--brand-300);stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:24px;box-shadow:0 24px 56px rgba(0,0,0,.36);
  border:1px solid rgba(255,255,255,.18);
}
.hero-badge{
  position:absolute;top:18px;left:-18px;
  display:flex;align-items:center;gap:12px;
  padding:12px 20px;border-radius:999px;
  background:var(--grad-cta);color:#fff;
  box-shadow:0 14px 30px rgba(249,115,22,.38);
}
.hero-badge strong{font-size:20px;font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.01em}
.hero-badge span{font-size:12.5px;opacity:.95}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.tight{padding:72px 0}
.section-alt{background:#fff}
.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--brand-700);
}
.section-label::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--grad-brand)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{margin-top:14px;font-size:clamp(24px,2.6vw,31px);font-weight:800;letter-spacing:-.01em;line-height:1.35}
.section-desc{margin-top:12px;color:var(--ink-600);font-size:16px;max-width:660px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-700)}
.link-more:hover{gap:10px}

/* ---------- stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  position:relative;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px 24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-num{font-size:36px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--ink-600)}
.stat-text{margin-top:10px;font-size:15px;color:var(--ink-600)}
.stat-trend{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(127,217,189,.22);color:var(--brand-700);
}

/* ---------- services ---------- */
.service-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.svc:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.svc-a{grid-column:span 7}
.svc-d{grid-column:span 7}
.svc-stack{grid-column:span 5;display:grid;gap:24px}
.svc-media{width:100%;aspect-ratio:16/9;object-fit:cover}
.svc-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc-icon{
  width:48px;height:48px;border-radius:16px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(15,111,92,.25);
}
.svc-icon svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.svc h3{font-size:19px;font-weight:700;line-height:1.45}
.svc p{font-size:15.5px;color:var(--ink-600)}
.svc .link-more{margin-top:auto;padding-top:6px}
.svc-sm .svc-body{padding:22px 24px 24px}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-card)}
.cmp-col{display:flex;flex-direction:column}
.cmp-head{padding:18px 24px;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px}
.cmp-left .cmp-head{background:#EDEDE9;color:var(--ink-400)}
.cmp-right .cmp-head{background:var(--grad-brand);color:#fff}
.cmp-col li{
  min-height:62px;display:flex;align-items:center;gap:12px;
  padding:16px 24px;border-bottom:1px solid var(--line);
  font-size:15.5px;
}
.cmp-left li{color:var(--ink-400)}
.cmp-right li{color:var(--ink-900);font-weight:500}
.cmp-right li:nth-child(odd){background:rgba(127,217,189,.12)}
.cmp-left li:nth-child(odd){background:#F7F7F5}
.cmp-col li:last-child{border-bottom:0}
.mark{width:22px;height:22px;flex:0 0 22px;border-radius:999px;display:grid;place-items:center;font-size:12px;font-weight:700}
.mark-no{background:#EDEDE9;color:var(--ink-400)}
.mark-yes{background:var(--grad-brand);color:#fff}
.mark svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300);color:inherit}
.news-cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--brand-900)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cat{
  position:absolute;top:12px;left:12px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--brand-900);background:rgba(255,255,255,.92);
  backdrop-filter:blur(4px);
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17.5px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14.5px;color:var(--ink-600);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.news-arrow{color:var(--brand-700);font-weight:600}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;border:1.5px dashed var(--brand-300);border-radius:var(--radius-card);
  background:rgba(127,217,189,.08);color:var(--ink-600);text-align:center;
}
.news-empty svg{width:40px;height:40px;fill:none;stroke:var(--brand-500);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ---------- assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.assure-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.assure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.assure-icon{
  width:46px;height:46px;border-radius:15px;display:grid;place-items:center;
  background:rgba(127,217,189,.25);color:var(--brand-700);
}
.assure-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.assure-card h3{margin-top:18px;font-size:18px;font-weight:700}
.assure-card p{margin-top:10px;font-size:15.5px;color:var(--ink-600)}

/* ---------- faq ---------- */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-card);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-900);
  transition:background .18s ease,color .18s ease;
}
.faq-q:hover{background:rgba(127,217,189,.1);color:var(--brand-700)}
.faq-sign{
  width:32px;height:32px;flex:0 0 32px;border-radius:999px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-size:18px;font-weight:700;line-height:1;
  transition:transform .2s ease;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 26px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}
.faq-item.is-open .faq-a{max-height:320px}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}

/* ---------- cta / form ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:88px 0}
.cta-section::before{
  content:"";position:absolute;width:620px;height:620px;border-radius:50%;
  top:-220px;left:-160px;
  background:radial-gradient(circle,rgba(23,166,126,.42),transparent 68%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.cta-grid h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.4;letter-spacing:-.01em}
.cta-lead{margin-top:18px;color:rgba(255,255,255,.82);font-size:16px}
.cta-points{margin-top:26px;display:grid;gap:14px}
.cta-points li{display:flex;align-items:flex-start;gap:12px;font-size:15.5px;color:rgba(255,255,255,.9)}
.cta-points svg{width:20px;height:20px;flex:0 0 20px;margin-top:3px;fill:none;stroke:var(--brand-300);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.form-card{background:#fff;border-radius:24px;padding:30px;box-shadow:0 24px 56px rgba(0,0,0,.28);color:var(--ink-900)}
.form-title{font-size:19px;font-weight:700}
.form-hint{margin-top:6px;font-size:14px;color:var(--ink-600)}
.form-grid{margin-top:20px;display:grid;gap:16px;grid-template-columns:1fr 1fr}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink-600)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:12px 14px;font-size:15px;background:var(--page);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,166,126,.16);
}
.form-submit{grid-column:1/-1;width:100%;margin-top:4px}
.form-privacy{margin-top:14px;font-size:12.5px;color:var(--ink-400);line-height:1.7}
.form-note{margin-top:12px;font-size:14px;color:var(--brand-700);font-weight:600;display:none}
.form-note.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:17px}
.footer-brand .logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.68);max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li + li{margin-top:10px}
.footer-col a,.footer-col p{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col a{position:relative;display:inline-block;padding-bottom:2px}
.footer-col a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand-300);transition:width .2s ease}
.footer-col a:hover{color:var(--brand-300)}
.footer-col a:hover::after{width:100%}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.56);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero{padding:56px 0 64px}
  .hero-visual{order:2;max-width:560px}
  .hero-badge{left:14px;top:14px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid{grid-template-columns:1fr}
  .svc-a,.svc-d,.svc-stack{grid-column:1/-1}
  .svc-stack{gap:24px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:1fr 1fr}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .brand-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.78}
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .brand-name{font-size:16px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1;justify-content:center}
  .micro-metrics{gap:10px 18px}
  .micro-metrics li{font-size:13px}
  .compare{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px}
  .stat-num{font-size:30px}
  .section-head{margin-bottom:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-section{padding:56px 0}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-card{padding:20px 16px}
  .stat-num{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .brand-actions{gap:8px}
  .btn{padding:10px 16px;font-size:14px}
  .btn-lg{padding:12px 20px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .svc:hover,.stat-card:hover,.news-card:hover,.assure-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-hover:0 14px 32px rgba(16,60,48,.14);
  --radius-card:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--page);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
svg{display:block}
:focus-visible{outline:3px solid rgba(249,115,22,.55);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(11,59,50,.12)}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.brand-row{
  min-height:70px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding-top:8px;padding-bottom:8px;
}
.brand{
  display:inline-flex;align-items:center;gap:12px;
  font-weight:800;font-size:19px;color:var(--brand-900);letter-spacing:-.01em;
  transition:opacity .16s ease;
}
.brand:hover{opacity:.86}
.logo-mark{
  width:40px;height:40px;border-radius:14px;flex:0 0 auto;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(23,166,126,.30);
}
.logo-mark svg{width:22px;height:22px;fill:#fff}
.brand-name{white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;padding:11px 22px;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(249,115,22,.3)}
.btn-ghost{background:transparent;color:var(--brand-700);border:1px solid rgba(15,111,92,.28)}
.btn-ghost:hover{background:rgba(127,217,189,.18);border-color:rgba(15,111,92,.5);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:8px 18px;font-size:14px}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--surface);color:var(--brand-700);
  transition:background .16s ease,border-color .16s ease,transform .16s ease;
}
.icon-btn:hover{background:rgba(127,217,189,.2);border-color:rgba(127,217,189,.9);transform:translateY(-2px)}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.search-panel{border-top:1px solid var(--line);background:var(--surface);padding:14px 0}
.search-form{display:flex;gap:10px;align-items:center}
.search-form input{
  flex:1;border-radius:12px;border:1px solid var(--line);
  padding:11px 16px;font-size:15px;background:#FBFDFC;color:var(--ink-900);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search-form input::placeholder{color:var(--ink-400)}
.search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,166,126,.18)}

.channel-bar{background:rgba(127,217,189,.18);border-bottom:1px solid rgba(15,111,92,.10)}
.channel-list{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;padding:9px 0;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-600);white-space:nowrap;
  transition:background .16s ease,color .16s ease,box-shadow .16s ease;
}
.channel-link:hover{background:rgba(255,255,255,.85);color:var(--brand-700)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 6px 16px rgba(23,166,126,.28)}
.channel-link .dot{width:6px;height:6px;border-radius:999px;background:var(--accent-500)}

/* ---------- Page main ---------- */
.page-main{padding:34px 0 10px}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-400);margin-bottom:24px;
}
.crumbs a{color:var(--ink-600);transition:color .16s ease}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .crumb-sep{color:var(--ink-400);opacity:.7}

.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  gap:44px;
  align-items:start;
}
.article-main{min-width:0}
.article-aside{display:none}

.article-head{margin-bottom:6px}
.article-cat{
  display:inline-flex;align-items:center;
  padding:6px 15px;border-radius:999px;
  background:var(--grad-brand);color:#fff;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  box-shadow:0 6px 14px rgba(23,166,126,.24);
}
.article-title{
  font-size:clamp(24px,3.3vw,34px);
  line-height:1.4;
  margin:16px 0 18px;
  color:var(--brand-900);
  letter-spacing:-.015em;
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--ink-400);
  font-variant-numeric:tabular-nums;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.article-meta .sep{width:4px;height:4px;border-radius:999px;background:var(--ink-400);opacity:.6}
.article-meta strong{color:var(--brand-700);font-weight:700}

.article-cover{
  border-radius:20px;overflow:hidden;
  margin:26px 0 8px;
  box-shadow:var(--shadow-card);
  background:var(--brand-900);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-caption{font-size:13px;color:var(--ink-400);margin:10px 0 0;text-align:center}

/* ---------- Article body (CMS content) ---------- */
.article-body{
  padding-top:22px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-900);
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;
  font-size:26px;line-height:1.42;
  margin:40px 0 16px;
  padding-left:16px;
  color:var(--brand-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:999px;background:var(--grad-brand);
}
.article-body h3{
  font-size:21px;line-height:1.5;margin:30px 0 12px;color:var(--brand-700);
}
.article-body h4{font-size:18px;margin:24px 0 10px;color:var(--ink-900)}
.article-body ul{margin:0 0 20px;padding-left:4px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:7px;height:7px;border-radius:999px;background:var(--brand-500);
}
.article-body ol{margin:0 0 20px;padding-left:24px;list-style:decimal}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body ol li::marker{color:var(--brand-500);font-weight:800}
.article-body strong{color:var(--brand-700)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:#FFFDF9;
  border-left:4px solid var(--brand-300);
  border-radius:0 16px 16px 0;
  color:var(--ink-600);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:24px auto;height:auto}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(15,111,92,.35);transition:.16s}
.article-body a:hover{color:var(--accent-500);border-bottom-color:var(--accent-300)}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  font-variant-numeric:tabular-nums;
}
.article-body thead th{
  background:var(--grad-brand);color:#fff;
  padding:12px 14px;text-align:left;font-weight:700;
}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-600)}
.article-body tbody tr:nth-child(even) td{background:rgba(127,217,189,.10)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.empty-state{
  text-align:center;padding:56px 24px;
  border:1px dashed rgba(23,166,126,.45);
  border-radius:var(--radius-card);
  background:rgba(127,217,189,.10);
}
.empty-state p{font-size:17px;color:var(--ink-600);margin-bottom:18px}

/* ---------- Tags ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.tag{
  padding:7px 16px;border-radius:999px;
  background:rgba(127,217,189,.22);color:var(--brand-700);
  font-size:13px;font-weight:600;
  transition:background .16s ease,color .16s ease,transform .16s ease;
}
.tag:hover{background:rgba(127,217,189,.42);transform:translateY(-2px)}

.back-row{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Aside ---------- */
.aside-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 20px;
  box-shadow:var(--shadow-card);
  margin-bottom:20px;
}
.aside-card h3{
  font-size:15px;color:var(--brand-900);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.aside-card h3::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--grad-brand);
}
.aside-list li{margin-bottom:12px;font-size:14px;line-height:1.6}
.aside-list li:last-child{margin-bottom:0}
.aside-list a{color:var(--ink-600);transition:color .16s ease}
.aside-list a:hover{color:var(--brand-700)}
.aside-list .num{
  display:inline-grid;place-items:center;
  width:20px;height:20px;border-radius:6px;
  background:rgba(127,217,189,.28);color:var(--brand-700);
  font-size:12px;font-weight:800;margin-right:8px;
  font-variant-numeric:tabular-nums;
}
.aside-cta{
  background:linear-gradient(150deg,#0F6F5C 0%,#17A67E 100%);
  border:0;color:#fff;
}
.aside-cta h3{color:#fff}
.aside-cta h3::before{background:rgba(255,255,255,.6)}
.aside-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.84);margin-bottom:16px}
.aside-cta .btn{width:100%}

/* ---------- Related ---------- */
.related{padding:66px 0 0}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--brand-700);
}
.section-label::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--grad-brand)}
.related-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:24px;
}
.related-head h2{font-size:28px;color:var(--brand-900);margin-top:10px}
.related-more{
  font-size:14px;font-weight:700;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;
  transition:gap .16s ease,color .16s ease;
}
.related-more:hover{gap:12px;color:var(--accent-500)}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px}
.related-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:20px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(127,217,189,.8)}
.related-thumb{overflow:hidden;background:rgba(127,217,189,.15)}
.related-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:16px 18px 20px}
.related-title{font-size:16px;font-weight:700;line-height:1.55;color:var(--ink-900)}
.related-date{
  margin-top:10px;font-size:12.5px;color:var(--ink-400);
  display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;
}
.related-date svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:#D6E7E1;margin-top:78px;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{
  display:flex;align-items:center;gap:12px;
  font-size:19px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(214,231,225,.72);max-width:290px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px;font-size:14px;color:rgba(214,231,225,.72);line-height:1.7}
.footer-col a{
  color:rgba(214,231,225,.78);
  transition:color .16s ease,border-color .16s ease;
  border-bottom:2px solid transparent;
  padding-bottom:1px;
}
.footer-col a:hover{color:var(--brand-300);border-bottom-color:var(--brand-300)}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(214,231,225,.6);line-height:1.7;
}

/* ---------- Responsive ---------- */
@media (min-width:768px){
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 260px}
  .article-aside{display:block;position:sticky;top:140px}
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .brand-row{min-height:64px}
  .brand-name{font-size:17px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .btn-ghost{display:none}
  .brand-name{font-size:16px}
  .logo-mark{width:36px;height:36px;border-radius:12px}
  .logo-mark svg{width:20px;height:20px}
  .brand-actions .btn-primary{padding:9px 16px;font-size:14px}
  .page-main{padding:24px 0 0}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:19px}
  .related{padding:48px 0 0}
  .related-head h2{font-size:23px}
  .site-footer{margin-top:56px;padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;margin-top:32px}
}
@media (max-width:520px){
  .article-title{font-size:24px}
  .search-form{flex-direction:column;align-items:stretch}
  .search-form .btn{width:100%}
  .article-meta{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
    --brand-900:#0B3B32;
    --brand-700:#0F6F5C;
    --brand-500:#17A67E;
    --brand-300:#7FD9BD;
    --accent-500:#F97316;
    --accent-300:#FDBA74;
    --gold-400:#F2C14E;
    --ink-900:#14201C;
    --ink-600:#4A5A54;
    --ink-400:#8A9691;
    --line:#E4E7E3;
    --surface:#FFFFFF;
    --page:#F6F4EF;
    --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
    --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
    --shadow-card:0 8px 24px rgba(16,60,48,.08);
    --shadow-hover:0 14px 32px rgba(16,60,48,.14);
    --radius-card:22px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    background:var(--page);
    color:var(--ink-900);
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
  a:hover{color:var(--brand-500)}
  button{font:inherit;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  p{margin:0}
  h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em;font-weight:800;color:var(--ink-900)}
  :focus-visible{outline:3px solid rgba(249,115,22,.5);outline-offset:2px;border-radius:6px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .num{font-variant-numeric:tabular-nums}

  /* ————— 顶部导航 ————— */
  .site-header{position:sticky;top:0;z-index:60;background:var(--surface);box-shadow:0 1px 0 var(--line);transition:box-shadow .2s ease}
  .site-header.is-stuck{box-shadow:0 12px 30px rgba(16,60,48,.12)}
  .brand-bar{border-bottom:1px solid var(--line)}
  .brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:70px}
  .brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:800;letter-spacing:-.01em}
  .brand:hover{color:var(--brand-700)}
  .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);display:grid;place-items:center;flex:0 0 auto;box-shadow:0 6px 14px rgba(15,111,92,.28)}
  .logo-mark svg{width:22px;height:22px;fill:#fff}
  .brand-name{font-size:18px;white-space:nowrap;font-weight:800}
  .brand-actions{display:flex;align-items:center;gap:10px}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;padding:11px 22px;font-size:15px;font-weight:600;
    border:1px solid transparent;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 18px rgba(249,115,22,.28)}
  .btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(249,115,22,.36)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 5px 12px rgba(249,115,22,.3)}
  .btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-300)}
  .btn-ghost:hover{color:var(--brand-700);background:rgba(127,217,189,.18);border-color:var(--brand-500)}
  .btn-ghost-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}
  .btn-ghost-light:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff}
  .btn-sm{padding:8px 16px;font-size:14px}
  .icon-btn{
    width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:var(--surface);
    display:grid;place-items:center;transition:background .18s,border-color .18s,transform .18s;
  }
  .icon-btn svg{width:19px;height:19px;fill:none;stroke:var(--brand-700);stroke-width:2;stroke-linecap:round}
  .icon-btn:hover{background:#EDF7F3;border-color:var(--brand-300);transform:translateY(-1px)}
  .search-panel{border-top:1px solid var(--line);background:#F3FAF7;padding:14px 0}
  .search-form{display:flex;gap:10px}
  .search-form input{
    flex:1;min-width:0;padding:11px 16px;border-radius:12px;border:1px solid var(--line);
    background:#fff;font-size:15px;color:var(--ink-900);transition:border-color .18s,box-shadow .18s;
  }
  .search-form input::placeholder{color:var(--ink-400)}
  .search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,166,126,.18)}
  .channel-bar{background:#EDF7F3;border-bottom:1px solid var(--line)}
  .channel-list{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .channel-list::-webkit-scrollbar{display:none}
  .channel-link{
    display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
    padding:9px 16px;border-radius:999px;font-size:14.5px;color:var(--ink-600);font-weight:500;
    transition:background .18s,color .18s;
  }
  .channel-link:hover{background:#DCF0E8;color:var(--brand-700)}
  .channel-link.is-active{background:var(--grad-brand);color:#fff;font-weight:600;box-shadow:0 6px 14px rgba(15,111,92,.22)}
  .channel-link.is-active:hover{color:#fff}
  .dot{width:5px;height:5px;border-radius:50%;background:var(--gold-400);display:inline-block}

  /* ————— 面包屑 ————— */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-400);padding:22px 0 0}
  .breadcrumb a{color:var(--ink-600)}
  .breadcrumb a:hover{color:var(--brand-700)}

  /* ————— 横幅 ————— */
  .page-banner{margin-top:18px}
  .banner-inner{
    position:relative;overflow:hidden;border-radius:28px;padding:58px 52px;
    background-image:
      linear-gradient(104deg,rgba(8,45,38,.95) 0%,rgba(15,111,92,.88) 54%,rgba(23,166,126,.62) 100%),
      url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    color:#fff;
    box-shadow:0 18px 40px rgba(11,59,50,.18);
  }
  .banner-inner::after{
    content:"";position:absolute;right:-90px;top:-110px;width:360px;height:360px;border-radius:50%;
    background:radial-gradient(circle,rgba(127,217,189,.5),transparent 68%);pointer-events:none;
  }
  .banner-text{position:relative;z-index:1;max-width:720px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
    letter-spacing:.14em;color:#CFF1E5;background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.24);padding:6px 14px;border-radius:999px;
  }
  .banner-text h1{color:#fff;font-size:42px;margin:18px 0 14px;line-height:1.26}
  .banner-text p.lead{color:#D8EEE7;font-size:17px;max-width:600px}
  .banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;position:relative;z-index:1}
  .banner-tag{
    display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#DCF3EB;
    background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
    padding:6px 13px;border-radius:999px;
  }
  .banner-tag i{width:6px;height:6px;border-radius:50%;background:var(--gold-400);display:inline-block}

  /* ————— 通用板块 ————— */
  .section{padding:76px 0 0}
  .section-head{max-width:760px;margin-bottom:34px}
  .section-label{
    display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;
    letter-spacing:.16em;color:var(--brand-700);text-transform:uppercase;
  }
  .section-label::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad-brand)}
  .section-head h2{font-size:30px;margin:14px 0 12px}
  .section-head .sub{color:var(--ink-600);font-size:16px}

  /* ————— 指标看板 ————— */
  .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .stat-card{
    position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;
    padding:28px 22px 22px;box-shadow:var(--shadow-card);overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand)}
  .stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
  .stat-num{font-size:38px;font-weight:800;color:var(--brand-700);line-height:1.1;font-variant-numeric:tabular-nums}
  .stat-unit{font-size:14px;font-weight:600;color:var(--ink-400);margin-left:5px}
  .stat-desc{margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.7}
  .stat-trend{
    display:inline-flex;align-items:center;gap:5px;margin-top:14px;font-size:12px;font-weight:600;
    color:var(--brand-700);background:rgba(127,217,189,.22);padding:4px 10px;border-radius:999px;
  }

  /* ————— 步骤卡 4 列 ————— */
  .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .step-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
  .step-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#DCF0E8}
  .step-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
  .step-card:hover .step-thumb img{transform:scale(1.04)}
  .step-index{
    position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;justify-content:center;
    min-width:34px;height:30px;padding:0 10px;border-radius:999px;
    background:var(--grad-cta);color:#fff;font-size:13px;font-weight:700;
    font-variant-numeric:tabular-nums;box-shadow:0 6px 14px rgba(249,115,22,.32);
  }
  .step-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
  .step-body h3{font-size:17.5px}
  .step-body p{font-size:14.5px;color:var(--ink-600);line-height:1.75}
  .step-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
  .step-link:hover{gap:10px;color:var(--brand-500)}

  /* ————— 两栏清单 ————— */
  .two-col{display:grid;grid-template-columns:1.25fr .95fr;gap:28px;align-items:start}
  .panel{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:34px 32px;box-shadow:var(--shadow-card);
  }
  .panel h2{font-size:26px;margin-bottom:12px}
  .panel .sub{color:var(--ink-600);font-size:15.5px;margin-bottom:22px}
  .check-list{display:grid;gap:16px}
  .check-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink-600);line-height:1.75}
  .check-list li strong{color:var(--ink-900);font-weight:700}
  .check-mark{
    flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--grad-brand);
    display:grid;place-items:center;margin-top:3px;
  }
  .check-mark::after{
    content:"";width:10px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;
    transform:translateY(-2px) rotate(-45deg);
  }
  .aside-card{
    position:relative;overflow:hidden;border-radius:var(--radius-card);padding:34px 30px;
    background:var(--grad-brand);color:#fff;box-shadow:0 16px 34px rgba(15,111,92,.24);
  }
  .aside-card::after{
    content:"";position:absolute;right:-70px;bottom:-90px;width:240px;height:240px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.28),transparent 70%);
  }
  .aside-card h3{color:#fff;font-size:22px;position:relative;z-index:1}
  .aside-card p{color:#DCF3EB;font-size:14.5px;margin-top:12px;position:relative;z-index:1}
  .aside-card .btn{margin-top:22px;position:relative;z-index:1}
  .aside-meta{
    display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;position:relative;z-index:1;
  }
  .aside-meta span{
    font-size:12.5px;color:#EAF9F3;background:rgba(255,255,255,.16);
    border-radius:999px;padding:5px 12px;
  }

  /* ————— FAQ ————— */
  .faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start}
  .faq-list{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-card);overflow:hidden}
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-q{margin:0}
  .faq-trigger{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 24px;background:transparent;border:0;text-align:left;
    font-size:17px;font-weight:700;color:var(--ink-900);transition:color .18s,background .18s;
  }
  .faq-trigger:hover{color:var(--brand-700);background:#F5FBF8}
  .faq-icon{position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--grad-brand)}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:#fff;border-radius:2px;
    transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease;
  }
  .faq-icon::before{width:12px;height:2px}
  .faq-icon::after{width:2px;height:12px}
  .faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.is-open .faq-a{max-height:340px}
  .faq-a p{padding:0 24px 22px;font-size:15px;color:var(--ink-600);line-height:1.85}

  /* ————— CTA 条 ————— */
  .cta-band{
    margin-top:78px;border-radius:28px;padding:46px 48px;
    background:var(--brand-900);color:#fff;position:relative;overflow:hidden;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  }
  .cta-band::before{
    content:"";position:absolute;left:-80px;top:-100px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(23,166,126,.5),transparent 68%);
  }
  .cta-band h2{color:#fff;font-size:26px;position:relative;z-index:1}
  .cta-band p{color:#B9D8CD;font-size:15px;margin-top:10px;position:relative;z-index:1;max-width:560px}
  .cta-band .banner-actions{margin-top:0;position:relative;z-index:1}

  /* ————— 页脚 ————— */
  .site-footer{background:var(--brand-900);color:#CFE6DE;margin-top:88px;padding:64px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
  .footer-desc{font-size:14.5px;line-height:1.9;color:#A9C8BD;max-width:300px}
  .footer-col h4{color:#fff;font-size:15px;margin:0 0 14px;font-weight:700}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a,.footer-col p{color:#A9C8BD;font-size:14px;margin:0;transition:color .18s ease}
  .footer-col a{position:relative;display:inline-block}
  .footer-col a:hover{color:var(--brand-300)}
  .footer-col a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand-300)}
  .footer-bottom{
    margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FB0A5;
  }

  /* ————— 响应式 ————— */
  @media (max-width:1024px){
    .brand-name{font-size:16px}
    .banner-inner{padding:46px 34px;border-radius:24px}
    .banner-text h1{font-size:34px}
    .stat-grid{grid-template-columns:repeat(2,1fr)}
    .step-grid{grid-template-columns:repeat(2,1fr)}
    .two-col{grid-template-columns:1fr}
    .faq-wrap{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .section{padding:60px 0 0}
  }
  @media (max-width:768px){
    body{font-size:16px}
    .container{padding:0 16px}
    .brand-row{height:62px;gap:10px}
    .brand-name{font-size:15px}
    .logo-mark{width:34px;height:34px;border-radius:10px}
    .logo-mark svg{width:19px;height:19px}
    .btn{padding:10px 18px;font-size:14.5px}
    .btn-sm{padding:8px 14px;font-size:13.5px}
    .icon-btn{width:38px;height:38px}
    .banner-inner{padding:34px 22px;border-radius:22px}
    .banner-text h1{font-size:28px;margin:14px 0 10px}
    .banner-text p.lead{font-size:15.5px}
    .banner-actions{gap:10px;margin-top:22px}
    .section-head h2,.panel h2{font-size:23px}
    .cta-band{padding:34px 24px;border-radius:22px}
    .cta-band h2{font-size:22px}
    .panel{padding:26px 22px}
    .aside-card{padding:28px 22px}
    .stat-num{font-size:32px}
    .faq-trigger{font-size:16px;padding:18px 18px}
    .faq-a p{padding:0 18px 20px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .site-footer{padding-top:48px;margin-top:64px}
  }
  @media (max-width:520px){
    .brand-name{font-size:14px}
    .brand-actions .btn-ghost{display:none}
    .step-grid{grid-template-columns:1fr}
    .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
    .stat-card{padding:22px 16px 18px}
    .stat-num{font-size:28px}
    .banner-text h1{font-size:24px}
    .banner-actions .btn{width:100%}
    .cta-band .banner-actions{width:100%}
    .cta-band .banner-actions .btn{width:100%}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category2 */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --radius-card:24px;
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-card-hover:0 14px 32px rgba(16,60,48,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
p{margin:0 0 1em}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.3}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(23,166,126,.45);
  outline-offset:3px;
  border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(11,59,50,.13)}
.brand-bar{position:relative;background:var(--surface);border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--brand-900);white-space:nowrap;transition:opacity .18s}
.brand:hover{opacity:.86}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:0 6px 16px rgba(15,111,92,.28)}
.logo-mark svg{width:21px;height:21px;fill:#fff}
.brand-name{letter-spacing:-.01em}
.brand-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:15px;padding:11px 22px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 13px 28px rgba(249,115,22,.34)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand-700)}
.btn-ghost:hover{border-color:var(--brand-300);background:rgba(127,217,189,.16);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.icon-btn{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);transition:background .18s,border-color .18s,transform .18s}
.icon-btn:hover{background:rgba(127,217,189,.16);border-color:var(--brand-300);transform:translateY(-2px)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.search-panel{border-top:1px solid var(--line);background:var(--surface);padding:14px 0}
.search-form{display:flex;gap:10px;align-items:center}
.search-form input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:11px 16px;font-size:15px;color:var(--ink-900);background:#fff;transition:border-color .18s,box-shadow .18s}
.search-form input::placeholder{color:var(--ink-400)}
.search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,166,126,.18)}
.channel-bar{background:linear-gradient(180deg,rgba(127,217,189,.18),rgba(127,217,189,.05));border-bottom:1px solid rgba(15,111,92,.1)}
.channel-list{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;padding:9px 17px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink-600);background:rgba(255,255,255,.78);border:1px solid rgba(15,111,92,.09);transition:background .18s,color .18s,box-shadow .18s,transform .18s}
.channel-link:hover{background:#fff;color:var(--brand-700);box-shadow:0 6px 14px rgba(16,60,48,.1);transform:translateY(-1px)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(15,111,92,.26)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--gold-400);display:inline-block}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4;transform:scale(1.02)}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(11,59,50,.95) 0%,rgba(15,111,92,.78) 55%,rgba(23,166,126,.52) 100%)}
.page-hero-inner{position:relative;z-index:2;padding-top:34px;padding-bottom:64px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.8);transition:color .18s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.5}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 18px}
.hero-chip{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.92)}
.hero-chip .dot{background:var(--accent-300)}
h1.hero-title{font-size:clamp(28px,4.4vw,46px);font-weight:800;margin:0 0 16px;max-width:820px;line-height:1.24}
.hero-lead{font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px;margin:0 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.metric-pill{display:inline-flex;align-items:center;gap:9px;padding:9px 17px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);font-size:13.5px;color:rgba(255,255,255,.82)}
.metric-pill b{font-size:16px;color:#fff;font-variant-numeric:tabular-nums;font-weight:800}
.metric-pill .unit{font-size:12px;color:rgba(255,255,255,.68)}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section-tight{padding:64px 0}
.section-alt{background:linear-gradient(180deg,rgba(127,217,189,.1),rgba(246,244,239,0))}
.section-head{max-width:760px;margin-bottom:38px}
.tag-label{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--brand-700)}
.tag-label::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--grad-brand)}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--brand-900);margin:14px 0 12px}
.section-desc{color:var(--ink-600);font-size:16.5px;line-height:1.85;margin:0}

/* ---------- compare ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
table.compare{width:100%;border-collapse:collapse;font-size:15.5px}
table.compare thead th{background:var(--grad-brand);color:#fff;text-align:left;padding:17px 22px;font-weight:700;font-size:15px;letter-spacing:.01em}
table.compare thead th:first-child{width:22%;background:#0F6F5C}
table.compare tbody th{text-align:left;font-weight:700;color:var(--brand-900);padding:18px 22px;background:rgba(127,217,189,.12);border-top:1px solid var(--line);vertical-align:top;font-size:15px}
table.compare tbody td{padding:18px 22px;border-top:1px solid var(--line);vertical-align:top;line-height:1.75}
table.compare tbody tr:nth-child(even) td{background:rgba(127,217,189,.06)}
table.compare tbody td.col-plain{color:var(--ink-400)}
table.compare tbody td.col-brand{color:var(--brand-700);font-weight:600}
.check-line{display:flex;gap:10px;align-items:flex-start}
.check-icon{flex:0 0 auto;width:19px;height:19px;border-radius:50%;background:var(--grad-brand);display:inline-flex;align-items:center;justify-content:center;margin-top:4px}
.check-icon svg{width:11px;height:11px;stroke:#fff;stroke-width:2.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.compare-cards{display:none;grid-template-columns:1fr;gap:16px}
.compare-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px 22px;box-shadow:var(--shadow-card)}
.compare-card h3{font-size:16.5px;font-weight:800;color:var(--brand-900);margin:0 0 12px}
.compare-card .row{display:flex;gap:10px;font-size:14.5px;line-height:1.7;padding:10px 0;border-top:1px dashed var(--line)}
.compare-card .row:first-of-type{border-top:0}
.compare-card .row .key{flex:0 0 74px;color:var(--ink-400);font-weight:600}
.compare-card .row .val{color:var(--ink-600)}
.compare-card .row.brand .val{color:var(--brand-700);font-weight:600}

/* ---------- info cards ---------- */
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.info-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.info-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.info-card:hover .info-media img{transform:scale(1.04)}
.info-badge{position:absolute;left:16px;top:16px;padding:5px 13px;border-radius:999px;background:var(--grad-brand);color:#fff;font-size:12.5px;font-weight:700;letter-spacing:.03em;box-shadow:0 6px 14px rgba(15,111,92,.28)}
.info-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.info-body h3{font-size:19px;font-weight:800;color:var(--brand-900);margin:0 0 12px}
.info-body p{color:var(--ink-600);font-size:15.5px;line-height:1.85;margin:0 0 14px}
.info-list{display:grid;gap:9px;margin-top:auto}
.info-list li{display:flex;gap:9px;font-size:14.5px;color:var(--ink-600);line-height:1.72}
.info-list li::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--brand-500);margin-top:9px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px 22px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.step-num{width:42px;height:42px;border-radius:14px;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;margin-bottom:16px;box-shadow:0 8px 18px rgba(15,111,92,.24)}
.step h3{font-size:17px;font-weight:800;color:var(--brand-900);margin:0 0 10px}
.step p{font-size:14.5px;color:var(--ink-600);line-height:1.8;margin:0}

/* ---------- scene tags ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.scene-item{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px 20px;display:flex;gap:12px;align-items:flex-start;transition:border-color .18s,box-shadow .18s,transform .18s}
.scene-item:hover{border-color:var(--brand-300);box-shadow:var(--shadow-card);transform:translateY(-3px)}
.scene-icon{flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:rgba(127,217,189,.28);display:flex;align-items:center;justify-content:center;color:var(--brand-700)}
.scene-icon svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.scene-item h3{font-size:15.5px;font-weight:700;color:var(--brand-900);margin:0 0 4px}
.scene-item p{font-size:13.8px;color:var(--ink-600);line-height:1.7;margin:0}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.is-open{border-color:rgba(23,166,126,.36);box-shadow:var(--shadow-card)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:none;border:0;padding:21px 26px;text-align:left;font-size:17px;font-weight:700;color:var(--brand-900);line-height:1.55}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;line-height:1;transition:transform .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 26px 22px;margin:0;color:var(--ink-600);font-size:15.5px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);border-radius:28px;padding:52px 48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band::before{content:"";position:absolute;width:460px;height:460px;right:-120px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(127,217,189,.34),rgba(127,217,189,0) 68%)}
.cta-copy{position:relative;z-index:2;max-width:600px}
.cta-copy h2{font-size:clamp(23px,2.8vw,30px);font-weight:800;margin:0 0 12px;color:#fff}
.cta-copy p{margin:0;color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.85}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:68px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;letter-spacing:-.01em}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 16px}
.footer-col ul{display:grid;gap:11px;font-size:14.5px}
.footer-col a{color:rgba(255,255,255,.7);position:relative;transition:color .18s ease}
.footer-col a::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--brand-300);transition:width .2s ease}
.footer-col a:hover{color:var(--brand-300)}
.footer-col a:hover::after{width:100%}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.58);margin:0}
.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,.5);line-height:1.75}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .info-grid{gap:20px}
}
@media (max-width:860px){
  .brand-name{font-size:16.5px}
  .btn-ghost{display:none}
  .brand-row{min-height:64px}
  .compare-wrap{display:none}
  .compare-cards{display:grid}
  .cta-band{padding:38px 26px;border-radius:24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  html body{font-size:16px}
  .container{padding:0 16px}
  .page-hero-inner{padding-top:24px;padding-bottom:48px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .info-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .info-body{padding:22px 20px 24px}
  .faq-q{padding:18px 20px;font-size:16px}
  .faq-a p{padding:0 20px 20px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{font-size:12.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  table.compare{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-hover:0 14px 32px rgba(16,60,48,.14);
  --radius-card:22px;
  --radius-img:16px;
  --radius-input:12px;
  --font-stack:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-500)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;color:var(--ink-900)}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:3px;
}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(16,60,48,.12)}
.brand-bar{position:relative}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--grad-brand);display:grid;place-items:center;
  box-shadow:0 6px 14px rgba(15,111,92,.28);
}
.logo-mark svg{width:24px;height:24px;fill:#fff}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 18px rgba(249,115,22,.28)}
.btn-primary:hover{color:#fff;box-shadow:0 12px 26px rgba(249,115,22,.36);transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-600)}
.btn-ghost:hover{color:var(--brand-700);border-color:var(--brand-300);background:#F2FBF7;transform:translateY(-2px)}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:0 8px 20px rgba(15,111,92,.26)}
.btn-brand:hover{color:#fff;box-shadow:0 12px 28px rgba(15,111,92,.34);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--ink-600);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-300);background:#F2FBF7}
.search-panel{border-top:1px solid var(--line);background:#FBFDFB}
.search-panel[hidden]{display:none}
.search-form{display:flex;gap:10px;padding:14px 0}
.search-form input{
  flex:1;min-width:0;padding:11px 16px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
}
.search-form input::placeholder{color:var(--ink-400)}
.search-form input:focus{border-color:var(--brand-500);outline:none;box-shadow:0 0 0 3px rgba(23,166,126,.16)}
.channel-bar{background:#EAF6F1;border-bottom:1px solid var(--line)}
.channel-list{display:flex;gap:8px;list-style:none;padding:9px 0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-600);
  background:rgba(255,255,255,.62);transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.channel-link:hover{background:#fff;color:var(--brand-700)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 6px 16px rgba(15,111,92,.24)}
.channel-link.is-active:hover{color:#fff}
.dot{width:6px;height:6px;border-radius:999px;background:var(--gold-400);display:inline-block}
.mobile-menu{
  display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0 16px;
}
.mobile-menu.is-open{display:block}
.mobile-menu .btn{width:100%;margin-top:8px}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(860px 420px at 16% 18%,rgba(23,166,126,.46),transparent 68%),
             linear-gradient(180deg,rgba(11,59,50,.55) 0%,rgba(11,59,50,.9) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;padding:58px 0 68px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(255,255,255,.42)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(127,217,189,.18);border:1px solid rgba(127,217,189,.4);
  color:#CFF3E6;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.page-hero h1{font-size:clamp(28px,4vw,44px);color:#fff;margin:18px 0 16px;letter-spacing:-.015em}
.page-hero .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.84);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-metric{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:rgba(255,255,255,.9);
}
.hero-metric strong{color:#fff;font-weight:800}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:var(--radius-card);
  box-shadow:0 24px 56px rgba(0,0,0,.34);
  border:1px solid rgba(255,255,255,.16);
}
.float-badge{
  position:absolute;left:-14px;top:-16px;
  display:flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:18px;
  background:var(--grad-cta);color:#fff;
  box-shadow:0 14px 30px rgba(249,115,22,.36);
}
.float-badge b{font-size:22px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.float-badge small{font-size:12px;opacity:.92;letter-spacing:.02em}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:38px}
.kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand-700);
  text-transform:none;margin-bottom:12px;
}
.kicker::before{content:"";width:3px;height:16px;border-radius:999px;background:var(--grad-brand)}
.section-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.section-head p{color:var(--ink-600);font-size:16.5px}
.section-foot{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:34px}

/* ---------- 属性面板 ---------- */
.attr-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.attr-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px 22px;
  box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.attr-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-brand)}
.attr-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.attr-value{display:flex;align-items:baseline;gap:6px;color:var(--brand-700);font-size:36px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.attr-value span{font-size:14px;font-weight:700;color:var(--ink-400)}
.attr-label{margin-top:12px;font-size:15px;font-weight:700;color:var(--ink-900)}
.attr-desc{margin-top:6px;font-size:13.5px;color:var(--ink-600);line-height:1.7}
.attr-chip{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(127,217,189,.22);color:var(--brand-700);
}

/* ---------- 时间线 ---------- */
.timeline-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:44px;align-items:start}
.timeline{list-style:none;position:relative}
.timeline::before{
  content:"";position:absolute;left:22px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(23,166,126,1),rgba(127,217,189,.85) 60%,rgba(127,217,189,0));
}
.tl-item{position:relative;padding-left:66px;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:0;top:2px;width:46px;height:46px;border-radius:999px;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 20px rgba(15,111,92,.28);border:3px solid #fff;
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.tl-time{
  display:inline-flex;align-items:center;gap:8px;padding:4px 12px;border-radius:999px;
  background:rgba(127,217,189,.2);color:var(--brand-700);
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{color:var(--ink-600);font-size:15.5px}
.tl-points{list-style:none;margin-top:12px;display:grid;gap:7px}
.tl-points li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-600);line-height:1.75}
.tl-points li::before{
  content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:999px;
  background:var(--brand-500);
}
.aside-card{
  position:sticky;top:150px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card);
}
.aside-card h3{font-size:18px;margin-bottom:10px}
.aside-card p{font-size:14.5px;color:var(--ink-600)}
.aside-card img{width:100%;border-radius:var(--radius-img);margin-bottom:18px}
.aside-list{list-style:none;display:grid;gap:12px;margin-top:16px}
.aside-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-600);line-height:1.7}
.aside-list li svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:var(--brand-500);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-top:4px}

/* ---------- 方式对照 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.mode-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mode-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.mode-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mode-body{padding:24px}
.mode-body h3{font-size:20px;margin-bottom:10px}
.mode-body p{color:var(--ink-600);font-size:15.5px}
.mode-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:rgba(127,217,189,.18);color:var(--brand-700);
  font-size:12.5px;font-weight:700;
}
.tag-accent{background:rgba(249,115,22,.12);color:#C2560C}
.mode-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-400);
}

/* ---------- 自检清单 ---------- */
.check-wrap{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:38px;align-items:center;
}
.check-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-card);
}
.check-panel h3{font-size:20px;margin-bottom:16px}
.check-list{list-style:none;display:grid;gap:14px}
.check-list li{
  display:flex;gap:12px;padding:14px 16px;border-radius:16px;background:#F8FBF9;
  border:1px solid var(--line);transition:background .18s ease,border-color .18s ease;
}
.check-list li:hover{background:#F1FAF6;border-color:var(--brand-300)}
.check-list .idx{
  flex:0 0 26px;width:26px;height:26px;border-radius:999px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:12.5px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.check-list strong{display:block;font-size:15px;color:var(--ink-900);margin-bottom:2px}
.check-list span.desc{font-size:14px;color:var(--ink-600);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink-900);transition:background .18s ease,color .18s ease;
}
.faq-q:hover{background:#F5FBF8;color:var(--brand-700)}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:999px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad-cta);transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .2s ease;
}
.faq-a p{padding:0 26px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}

/* ---------- CTA 表单 ---------- */
.cta-section{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
  padding:76px 0;
}
.cta-section::before{
  content:"";position:absolute;left:-120px;top:-140px;width:520px;height:520px;border-radius:999px;
  background:radial-gradient(circle,rgba(23,166,126,.42),transparent 65%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;align-items:start}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.cta-inner > div > p{color:rgba(255,255,255,.82);font-size:16px}
.cta-points{list-style:none;display:grid;gap:12px;margin-top:22px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.9);line-height:1.7}
.cta-points svg{width:19px;height:19px;flex:0 0 19px;fill:none;stroke:#7FD9BD;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;margin-top:3px}
.form-card{
  background:#fff;border-radius:var(--radius-card);padding:28px;
  box-shadow:0 24px 60px rgba(0,0,0,.28);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-sub{font-size:13.5px;color:var(--ink-400);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink-600);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:#FCFDFC;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:92px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 3px rgba(23,166,126,.16);
}
.form-note{font-size:12px;color:var(--ink-400);line-height:1.7;margin-top:12px}
.form-msg{font-size:13.5px;font-weight:700;color:var(--brand-700);margin-top:12px;display:none}
.form-msg.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:62px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:12px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:280px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.76);font-size:14px;display:inline-block;position:relative}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:999px;
  background:var(--brand-300);transition:width .2s ease;
}
.footer-col a:hover{color:var(--brand-300)}
.footer-col a:hover::after{width:100%}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:30px;padding:46px 0 54px}
  .hero-visual{order:2;max-width:560px}
  .float-badge{left:auto;right:12px;top:-14px}
  .attr-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline-wrap{grid-template-columns:1fr;gap:30px}
  .aside-card{position:static}
  .compare-grid{grid-template-columns:1fr}
  .check-wrap{grid-template-columns:1fr;gap:26px}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .brand-actions .btn-ghost{display:none}
  .mobile-toggle{display:grid}
}
@media (min-width:1025px){
  .mobile-toggle{display:none}
  .mobile-menu{display:none !important}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
  .brand-name{font-size:16.5px;white-space:normal;line-height:1.25;max-width:190px}
  .brand-row{min-height:62px;gap:10px}
  .logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px}
  .logo-mark svg{width:21px;height:21px}
  .btn{padding:10px 18px;font-size:14px}
  .attr-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .attr-card{padding:20px 16px 18px;border-radius:18px}
  .attr-value{font-size:29px}
  .timeline::before{left:16px}
  .tl-item{padding-left:48px;margin-bottom:20px}
  .tl-node{width:34px;height:34px;font-size:12.5px;border-width:2px}
  .tl-card{padding:18px}
  .faq-q{padding:18px;font-size:15.5px;gap:12px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .form-card{padding:20px}
  .cta-section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section-foot{margin-bottom:26px}
}
@media (max-width:520px){
  .attr-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:8px}
  .float-badge{padding:10px 14px;border-radius:14px}
  .float-badge b{font-size:18px}
  .check-panel{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-hover:0 14px 32px rgba(16,60,48,.14);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--page);
  color:var(--ink-900);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid var(--brand-500);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-700);
  padding:6px 14px;border-radius:999px;
  background:rgba(127,217,189,.22);
  border:1px solid rgba(23,166,126,.22);
}
.eyebrow::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--grad-brand)}
.section-title{font-size:31px;line-height:1.32;font-weight:800;letter-spacing:-.01em;margin-top:14px;color:var(--brand-900)}
.section-sub{font-size:16px;color:var(--ink-600);margin-top:12px;max-width:680px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(249,115,22,.34)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--line)}
.btn-ghost:hover{background:rgba(127,217,189,.2);border-color:var(--brand-300);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:#fff;transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(16,60,48,.12)}
.brand-bar{background:#fff;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;
  background:var(--grad-brand);display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(15,111,92,.28);
}
.logo-mark svg{width:22px;height:22px;fill:#fff}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;color:var(--brand-700);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.icon-btn:hover{background:rgba(127,217,189,.2);border-color:var(--brand-300)}
.icon-btn[aria-expanded="true"]{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.search-panel{border-bottom:1px solid var(--line);background:#FBFDFC;padding:14px 0}
.search-panel[hidden]{display:none}
.search-form{display:flex;gap:10px;align-items:center}
.search-form input[type="search"]{
  flex:1;min-width:0;padding:11px 16px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input[type="search"]:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,166,126,.16)}
.channel-bar{background:rgba(127,217,189,.2);border-bottom:1px solid var(--line)}
.channel-list{display:flex;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-600);white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.channel-link:hover{background:rgba(23,166,126,.16);color:var(--brand-700)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 6px 16px rgba(15,111,92,.26)}
.channel-link .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-300)}
/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:60px 0 96px}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.3;filter:saturate(.85);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 0%,rgba(23,166,126,.42),transparent 65%),
    linear-gradient(180deg,rgba(11,59,50,.72) 0%,rgba(11,59,50,.94) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(255,255,255,.35)}
.cat-hero .eyebrow{background:rgba(127,217,189,.16);border-color:rgba(127,217,189,.4);color:var(--brand-300)}
.cat-hero .eyebrow::before{background:var(--accent-500)}
.cat-hero h1{
  font-size:clamp(29px,4vw,45px);line-height:1.24;font-weight:800;letter-spacing:-.01em;
  margin-top:18px;max-width:880px;
}
.hero-lead{font-size:17.5px;line-height:1.8;color:rgba(255,255,255,.86);margin-top:18px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.hero-tags li{
  font-size:13px;font-weight:600;color:rgba(255,255,255,.86);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
}
/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:-58px;position:relative;z-index:5}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 22px 22px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-num{font-size:33px;font-weight:800;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.stat-num small{font-size:14px;font-weight:600;color:var(--ink-400);margin-left:4px}
.stat-label{font-size:14px;color:var(--ink-600);margin-top:8px;line-height:1.7}
/* ---------- split ---------- */
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);position:relative}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease}
.split-media:hover img{transform:scale(1.03)}
.media-badge{
  position:absolute;left:18px;top:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;background:var(--grad-cta);color:#fff;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 10px 22px rgba(249,115,22,.32);
}
.spec-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-card);margin-top:26px}
.spec-row{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:15px 20px;border-top:1px solid var(--line);font-size:15px}
.spec-row:first-child{border-top:0}
.spec-key{color:var(--ink-600)}
.spec-val{font-weight:700;color:var(--brand-700);text-align:right;font-variant-numeric:tabular-nums}
/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.step-idx{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:17px;
  font-variant-numeric:tabular-nums;box-shadow:0 8px 18px rgba(15,111,92,.24);
}
.step-card h3{font-size:18px;font-weight:700;margin-top:18px;color:var(--brand-900)}
.step-card p{font-size:15px;color:var(--ink-600);margin-top:8px}
/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:36px;align-items:start}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:rgba(23,166,126,.42);box-shadow:var(--shadow-card)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{font-size:17px;font-weight:700;color:var(--brand-900);line-height:1.6}
.faq-sign{
  position:relative;flex:0 0 auto;width:30px;height:30px;border-radius:999px;
  background:var(--grad-brand);transition:transform .2s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:#fff;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:12px;height:2px}
.faq-sign::after{width:2px;height:12px;transition:opacity .2s ease,transform .2s ease}
.faq-item[open] .faq-sign::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-answer{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:var(--ink-600)}
/* ---------- side card ---------- */
.side-card{
  position:sticky;top:132px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:20px;font-weight:800;color:var(--brand-900)}
.side-card .side-note{font-size:14px;color:var(--ink-600);margin-top:10px;line-height:1.8}
.field{margin-top:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-600);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#FCFDFC;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,166,126,.16);
}
.form-privacy{font-size:12px;color:var(--ink-400);line-height:1.7;margin-top:14px}
.side-hours{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-600);display:flex;align-items:center;gap:8px;
}
.side-hours::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 4px rgba(23,166,126,.18)}
/* ---------- cta ---------- */
.cta-wrap{padding:0 0 88px}
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--brand-900);color:#fff;
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-100px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(249,115,22,.34),transparent 68%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:27px;font-weight:800;line-height:1.35}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.76);margin-top:10px;max-width:580px}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#fff;padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.footer-desc{color:rgba(255,255,255,.62);font-size:14px;line-height:1.8;margin-top:14px;max-width:300px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--brand-300);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.74);transition:color .18s ease}
.footer-col a:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.55);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .brand-actions .btn-ghost{display:none}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:28px}
  .step-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .side-card{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .channel-link{font-size:14px;padding:7px 14px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:40px 0}
  .section-title{font-size:25px}
  .cat-hero{padding:44px 0 82px}
  .hero-lead{font-size:16px}
  .brand-row{min-height:64px;gap:12px}
  .brand-name{font-size:16.5px}
  .brand-actions .btn-primary{padding:10px 16px;font-size:14px}
  .stat-grid{gap:14px;margin-top:-48px}
  .stat-num{font-size:27px}
  .cta-band{padding:32px 24px;border-radius:22px}
  .cta-band h2{font-size:22px}
  .cta-wrap{padding-bottom:60px}
  .site-footer{padding:48px 0 26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .brand-name{max-width:150px;overflow:hidden;text-overflow:ellipsis}
  .icon-btn{width:38px;height:38px}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .faq-item summary{padding:16px 16px;gap:12px}
  .faq-item summary h3{font-size:15.5px}
  .faq-answer{padding:0 16px 18px;font-size:15px}
  .side-card{padding:22px 18px}
  .spec-row{flex-direction:column;gap:4px}
  .spec-val{text-align:left}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category5 */
:root{
  --brand-900:#0B3B32;
  --brand-700:#0F6F5C;
  --brand-500:#17A67E;
  --brand-300:#7FD9BD;
  --accent-500:#F97316;
  --accent-300:#FDBA74;
  --gold-400:#F2C14E;
  --ink-900:#14201C;
  --ink-600:#4A5A54;
  --ink-400:#8A9691;
  --line:#E4E7E3;
  --surface:#FFFFFF;
  --page:#F6F4EF;
  --grad-brand:linear-gradient(120deg,#0F6F5C 0%,#17A67E 55%,#7FD9BD 100%);
  --grad-cta:linear-gradient(100deg,#F97316 0%,#FB923C 100%);
  --shadow-card:0 8px 24px rgba(16,60,48,.08);
  --shadow-hover:0 14px 32px rgba(16,60,48,.14);
  --radius-card:22px;
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-sans);font-size:16.5px;line-height:1.8;
  color:var(--ink-900);background:var(--page);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:-.01em;font-weight:800;line-height:1.25}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#FBF9F4;border-bottom:1px solid var(--line);transition:box-shadow .2s ease,background .2s ease}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(11,59,50,.12);background:#FFFFFF}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:14px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 6px 16px rgba(15,111,92,.28);
}
.logo-mark svg{width:22px;height:22px;fill:#fff}
.brand-name{font-size:19px;font-weight:800;color:var(--brand-900);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;
  white-space:nowrap;text-decoration:none;
}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.36);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(249,115,22,.3)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-300)}
.btn-ghost:hover{background:rgba(127,217,189,.22);border-color:var(--brand-500);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(23,166,126,.45);outline-offset:2px;
}
.icon-btn{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .18s ease;
}
.icon-btn svg{width:19px;height:19px;fill:none;stroke:var(--brand-700);stroke-width:2;stroke-linecap:round}
.icon-btn:hover{background:rgba(127,217,189,.2);border-color:var(--brand-300);transform:translateY(-2px)}
.search-panel{border-top:1px solid var(--line);background:#fff;padding:14px 0}
.search-form{display:flex;gap:10px;max-width:640px}
.search-form input{
  flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:11px 16px;
  font-size:15px;background:#FBFBF9;color:var(--ink-900);transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,166,126,.16);background:#fff}

.channel-bar{background:linear-gradient(180deg,#EAF6F0 0%,#E3F2EC 100%);border-bottom:1px solid #D8EAE2}
.channel-list{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  padding:9px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-600);background:rgba(255,255,255,.72);border:1px solid transparent;
  transition:all .18s ease;
}
.channel-link:hover{background:#fff;color:var(--brand-700);border-color:var(--brand-300);transform:translateY(-1px)}
.channel-link.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 6px 16px rgba(15,111,92,.26)}
.channel-link .dot{width:6px;height:6px;border-radius:50%;background:var(--gold-400);display:inline-block}

@media(max-width:1023px){
  .brand-name{font-size:17px}
  .brand-actions .btn-ghost{display:none}
}
@media(max-width:640px){
  .brand-row{min-height:62px}
  .brand-name{font-size:15.5px;white-space:normal;line-height:1.25;max-width:150px}
  .logo-mark{width:34px;height:34px;border-radius:12px}
  .logo-mark svg{width:19px;height:19px}
  .btn{padding:9px 16px;font-size:14px}
  .icon-btn{width:38px;height:38px}
}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);isolation:isolate}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;z-index:-2}
.page-hero .hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 420px at 12% 18%,rgba(23,166,126,.55),transparent 70%),
    linear-gradient(100deg,rgba(11,59,50,.94) 0%,rgba(11,59,50,.78) 52%,rgba(11,59,50,.55) 100%);
}
.hero-inner{padding:56px 0 64px;color:#fff;max-width:820px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.86);border-bottom:1px solid transparent;transition:all .16s ease}
.crumb a:hover{color:#fff;border-bottom-color:var(--brand-300)}
.crumb span[aria-current]{color:#fff;font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.14em;color:#C9F0E1;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold-400)}
.page-hero h1{font-size:clamp(30px,4.2vw,46px);color:#fff;margin-bottom:16px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:640px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);color:#EAFBF4;
}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section-tight{padding:64px 0}
@media(max-width:768px){.section{padding:52px 0}.section-tight{padding:44px 0}}
.section-head{max-width:720px;margin-bottom:38px}
.section-label{
  display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;
  letter-spacing:.16em;color:var(--brand-700);margin-bottom:14px;
}
.section-label::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-brand)}
.section-head h2{font-size:clamp(25px,3.2vw,32px);color:var(--brand-900);margin-bottom:12px}
.section-head p{color:var(--ink-600);font-size:16px}
.bg-white-block{background:#fff}

/* ---------- 问题分类矩阵 ---------- */
.q-matrix{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.q-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.q-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.q-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#DCEFE7}
.q-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.q-card:hover .thumb img{transform:scale(1.045)}
.num-badge{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:28px;padding:0 12px;border-radius:999px;background:var(--grad-brand);
  color:#fff;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 14px rgba(11,59,50,.28);
}
.q-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.q-body h3{font-size:17.5px;color:var(--brand-900)}
.q-body .q-desc{font-size:14.5px;color:var(--ink-600);line-height:1.75}
.q-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.q-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-600);line-height:1.7}
.q-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-300);
}
.q-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--brand-700);padding-top:6px;transition:gap .18s ease,color .18s ease;
}
.q-card:hover .q-more{gap:11px;color:var(--brand-500)}
@media(max-width:1023px){.q-matrix{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.q-matrix{grid-template-columns:1fr;gap:18px}}

/* ---------- 三步自查 ---------- */
.step-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step-grid{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr))}
.step-card{
  position:relative;background:#FBFCFA;border:1px solid var(--line);border-radius:20px;
  padding:26px 24px 24px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;border-radius:20px 20px 0 0;
  background:var(--grad-brand);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300)}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:var(--brand-700);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-num small{font-size:14px;font-weight:700;color:var(--ink-400);margin-left:6px}
.step-card h3{font-size:17px;color:var(--brand-900);margin-bottom:8px}
.step-card p{font-size:14.5px;color:var(--ink-600);line-height:1.8}
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:34px}
.stat-cell{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 18px;
  box-shadow:var(--shadow-card);
}
.stat-cell .v{font-size:26px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.15}
.stat-cell .v span{font-size:13px;font-weight:700;color:var(--ink-400);margin-left:4px}
.stat-cell .k{font-size:13.5px;color:var(--ink-600);margin-top:6px}
@media(max-width:900px){.step-grid{grid-template-columns:1fr}.stats-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.stats-row{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-shell{background:#fff;border:1px solid var(--line);border-radius:24px;padding:10px 28px;box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.55;
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-sign{
  flex-shrink:0;width:30px;height:30px;border-radius:999px;background:var(--grad-brand);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;transition:transform .2s ease;
}
.faq-item.open .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-600);padding:0 0 22px;max-width:900px}
@media(max-width:640px){
  .faq-shell{padding:6px 18px;border-radius:20px}
  .faq-q{font-size:15.5px;padding:18px 0}
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:52px 48px;color:#fff;
  background:var(--brand-900);display:grid;grid-template-columns:1.4fr .9fr;
  gap:32px;align-items:center;isolation:isolate;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(620px 320px at 88% -10%,rgba(23,166,126,.55),transparent 68%),
    radial-gradient(520px 280px at 0% 110%,rgba(249,115,22,.28),transparent 70%);
}
.cta-band h2{font-size:clamp(24px,3vw,31px);color:#fff;margin-bottom:12px}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.82);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.06)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff}
@media(max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:40px 28px;border-radius:22px}
  .cta-actions{justify-content:flex-start}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#D6E7E1;padding:64px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{width:36px;height:36px;border-radius:12px}
.footer-desc{font-size:14px;color:rgba(214,231,225,.78);max-width:280px;line-height:1.8}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:rgba(214,231,225,.78);transition:color .16s ease}
.footer-col a{display:inline-block;border-bottom:2px solid transparent;padding-bottom:1px}
.footer-col a:hover{color:var(--brand-300);border-bottom-color:var(--brand-300);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(214,231,225,.62);
}
@media(max-width:900px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
@media(max-width:560px){
  .site-footer{padding:48px 0 22px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* 回到顶部 */
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:999px;
  background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  border:0;cursor:pointer;box-shadow:0 10px 24px rgba(11,59,50,.3);
  opacity:0;pointer-events:none;transform:translateY(10px);transition:all .22s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{filter:brightness(1.06);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:640px){.to-top{right:14px;bottom:16px;width:42px;height:42px}}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}