/* roulang page: index */
:root{
  --brand:#0E5F5A;
  --brand-dark:#0A4744;
  --brand-soft:#E6F2F0;
  --accent:#FF7A32;
  --accent-dark:#E4651D;
  --mint:#8FD9CE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#10211F;
  --ink-2:#41524F;
  --ink-3:#6F807C;
  --line:#DCE5E0;
  --err:#C94A4A;
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 12px 30px rgba(14,95,90,.10);
  --shadow-hover:0 18px 40px rgba(14,95,90,.16);
  --container:1200px;
  --gap:24px;
  --section-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:var(--brand);background:var(--brand-soft);
  border-radius:var(--radius-pill);padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{color:var(--accent)}
h2{font-size:36px}
h3{font-size:21px}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16.5px}
.section-head.center .section-sub{margin-left:auto;margin-right:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn i{font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,122,50,.28)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,122,50,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-sm{padding:11px 20px;font-size:14.5px}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--brand)}
.text-link i{transition:transform .22s ease}
.text-link:hover i{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--radius-pill);padding:5px 12px;
}
.badge.is-accent{color:#fff;background:var(--accent)}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6D8D2}
.empty-state{
  grid-column:1/-1;text-align:center;color:var(--ink-3);
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
  padding:44px 24px;font-size:15.5px;
}

/* Header */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(10px);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(14,95,90,.24);
}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.3px}
.logo:hover .logo-text{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;
  color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,95,90,.2)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  color:var(--brand);font-size:18px;align-items:center;justify-content:center;background:#fff;
}
.menu-toggle:hover{background:var(--brand-soft)}
.drawer{
  position:fixed;inset:74px 0 0;z-index:75;background:#fff;
  padding:24px;display:none;flex-direction:column;gap:8px;overflow-y:auto;
  border-top:1px solid var(--line);
}
.drawer.is-open{display:flex}
.drawer .nav-link{padding:14px 16px;font-size:16.5px;border-radius:var(--radius-sm)}
.drawer-cta{margin-top:14px}
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  padding:12px 16px;background:rgba(247,244,238,.96);border-top:1px solid var(--line);
}
.mobile-cta .btn{width:100%}

/* Hero */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(115deg,rgba(10,71,68,.94) 0%,rgba(14,95,90,.86) 52%,rgba(14,95,90,.68) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:460px;height:460px;
  border-radius:50%;border:2px solid rgba(143,217,206,.35);
  box-shadow:0 0 0 40px rgba(143,217,206,.08),0 0 0 90px rgba(143,217,206,.05);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;
  gap:56px;align-items:center;padding:96px 0 104px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);
  border:1px solid rgba(143,217,206,.5);color:#EAF7F4;
  border-radius:var(--radius-pill);padding:7px 16px;font-size:13.5px;font-weight:700;margin-bottom:22px;
}
.hero-tag i{color:var(--accent)}
.hero h1{font-size:50px;line-height:1.24;letter-spacing:.4px}
.hero h1 em{font-style:normal;color:#FFD7BE}
.hero-lead{margin-top:20px;font-size:17.5px;color:#DCEBE8;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.hero-points span{
  font-size:13.5px;font-weight:600;color:#DCEBE8;
  border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-pill);padding:6px 14px;
}
.hero-card{
  background:rgba(255,255,255,.97);color:var(--ink);border-radius:20px;
  padding:28px;box-shadow:0 24px 50px rgba(6,42,40,.3);border:1px solid rgba(255,255,255,.6);
}
.hero-card h3{font-size:18px;display:flex;align-items:center;gap:9px}
.hero-card h3 i{color:var(--accent)}
.status-list{margin-top:20px;display:flex;flex-direction:column;gap:1px;background:var(--line);border-radius:var(--radius-sm);overflow:hidden}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;padding:13px 16px;font-size:14.5px}
.status-row span:first-child{color:var(--ink-3)}
.status-row strong{font-weight:800;color:var(--brand)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#2FA77B;margin-right:7px;vertical-align:middle}
.hero-card .btn{width:100%;margin-top:20px}
.hero-card-note{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center}

/* Pain points */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pain-card{padding:26px 22px;position:relative;overflow:hidden}
.pain-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--mint));
}
.pain-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;margin-bottom:16px;
}
.pain-card h3{font-size:18px;margin-bottom:10px}
.pain-card p{font-size:14.8px;color:var(--ink-2)}

/* Solution */
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:64px}
.solution-row:last-child{margin-bottom:0}
.solution-row.reverse .solution-media{order:2}
.solution-media{position:relative}
.solution-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:16/11;object-fit:cover}
.solution-media .num{
  position:absolute;left:-16px;top:-16px;width:56px;height:56px;border-radius:16px;
  background:var(--accent);color:#fff;display:grid;place-items:center;
  font-size:20px;font-weight:800;box-shadow:0 14px 30px rgba(255,122,50,.34);
}
.solution-body h3{font-size:26px;margin-bottom:16px}
.solution-body p{color:var(--ink-2);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2)}
.check-list i{color:var(--brand);margin-top:6px;font-size:14px}

/* Metrics */
.metrics{
  background:
    linear-gradient(rgba(10,71,68,.92),rgba(10,71,68,.92)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{padding:30px 24px;border-radius:var(--radius);background:rgba(255,255,255,.07);border:1px solid rgba(143,217,206,.25)}
.metric strong{display:block;font-size:40px;line-height:1.1;color:#FFD7BE;letter-spacing:1px}
.metric span{display:block;margin-top:10px;font-size:15px;color:#D5E7E4}

/* Testimonials */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{padding:28px 26px;display:flex;flex-direction:column;gap:16px}
.quote-card:nth-child(2){transform:translateY(22px)}
.quote-card:nth-child(2):hover{transform:translateY(18px)}
.quote-card .stars{color:var(--accent);font-size:13px;letter-spacing:3px}
.quote-card p{font-size:15.5px;color:var(--ink-2)}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.quote-avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-weight:800;font-size:15px;
}
.quote-person b{display:block;font-size:15px}
.quote-person small{color:var(--ink-3);font-size:13px}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{display:flex;flex-direction:column;overflow:hidden}
.news-thumb{display:block;overflow:hidden;background:var(--brand-soft)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-3)}
.news-title{font-size:18.5px;line-height:1.5}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--brand)}
.news-excerpt{font-size:14.6px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body .text-link{margin-top:auto}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;position:relative;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 60px 20px 26px;
  font-size:17px;font-weight:700;color:var(--ink);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;
  background:var(--brand);border-radius:0 4px 4px 0;
}
.faq-answer{padding:0 26px 24px;font-size:15.5px;color:var(--ink-2)}

/* CTA */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;border-radius:24px;padding:56px 48px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,50,.35),transparent 70%);
}
.cta-band h2{font-size:32px;position:relative;z-index:2}
.cta-band p{margin-top:14px;color:#D6E9E6;position:relative;z-index:2;font-size:16px}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2}

/* Contact form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
}
.field textarea{height:132px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(143,217,206,.45);
}
.field .hint{font-size:13px;color:var(--ink-3)}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field .err-text{font-size:13px;color:var(--err)}
.form-aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-aside ul{display:flex;flex-direction:column;gap:14px;margin-top:18px}
.form-aside li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.form-aside i{color:var(--accent);margin-top:6px;font-size:13px}

/* Footer */
.site-footer{background:#0A2624;color:#C9DAD7;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .logo-mark{box-shadow:none}
.footer-brand span{font-size:18px;font-weight:800;color:#fff}
.site-footer p{font-size:14.5px;color:#9DB5B2;line-height:1.9}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:#AFC6C3;font-size:14.5px}
.footer-col a:hover{color:var(--mint)}
.footer-contact li{font-size:14.5px;color:#AFC6C3;display:flex;gap:10px;margin-bottom:12px}
.footer-contact i{color:var(--mint);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#87A09D;
}

/* Responsive */
@media (max-width:1200px){
  :root{--section-y:76px}
  .hero h1{font-size:44px}
  h2{font-size:32px}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:72px 0 80px}
  .hero-card{max-width:560px}
  .solution-row{grid-template-columns:1fr;gap:32px;margin-bottom:56px}
  .solution-row.reverse .solution-media{order:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr;gap:20px}
  .quote-card:nth-child(2){transform:none}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-cta{display:block}
  .site-footer{padding-bottom:78px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .container{padding:0 18px}
  .hero h1{font-size:34px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-card{padding:22px}
  h2{font-size:27px}
  .pain-grid{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:16px}
  .metric strong{font-size:32px}
  .news-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 24px;border-radius:20px}
  .cta-band h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .faq-item summary{font-size:16px;padding:18px 52px 18px 20px}
  .faq-answer{padding:0 20px 20px}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .hero{padding-bottom:8px}
  .hero-tag{font-size:12.5px}
  .hero h1{font-size:30px}
  .metrics-grid{grid-template-columns:1fr}
  .btn{padding:13px 22px;font-size:15px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E5F5A;
  --c-primary-dark:#0A4744;
  --c-primary-light:#12857C;
  --c-primary-soft:#E4F1EE;
  --c-accent:#FF7A32;
  --c-accent-dark:#E8661F;
  --c-accent-soft:#FFEADC;
  --c-mint:#8FD9CE;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-ink:#10211F;
  --c-ink-soft:#4C5F5C;
  --c-ink-mute:#7A8A87;
  --c-border:#DCE5E0;
  --c-error:#C94A4A;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 12px 30px rgba(14,95,90,.10);
  --sh-2:0 18px 40px rgba(14,95,90,.16);
  --container:1200px;
  --nav-h:74px;
}
*,*::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","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{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(--c-mint);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.01em;margin-top:14px;}
.section-head p{margin-top:14px;color:var(--c-ink-soft);font-size:16.5px;}
.muted{color:var(--c-ink-soft);}
.center{text-align:center;}
.center .section-head{margin-left:auto;margin-right:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px rgba(255,122,50,.28);}
.btn-primary:hover{background:var(--c-accent-dark);transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,122,50,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,50,.24);}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-outline:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--c-primary);border-color:#fff;}
.btn-light:hover{background:var(--c-mint);border-color:var(--c-mint);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  transition:gap .2s ease,color .2s ease;
}
.link-arrow:hover{gap:13px;color:var(--c-accent-dark);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.01em;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(140deg,var(--c-primary-light),var(--c-primary-dark));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 8px 18px rgba(14,95,90,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-ink-mute);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-ink-soft);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--c-accent);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-link:hover::after{width:22px;}
.nav-link.is-active{background:var(--c-primary);color:#fff;}
.nav-link.is-active::after{display:none;}
.header-cta{margin-left:8px;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:13px;
  background:#fff;border:1px solid var(--c-border);
  align-items:center;justify-content:center;font-size:18px;color:var(--c-primary);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--c-primary-soft);border-color:var(--c-mint);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-border);
  background:#fff;padding:16px 24px 26px;
}
.mobile-drawer .nav-link{
  display:block;padding:13px 16px;font-size:16px;border-radius:14px;
}
.mobile-drawer .nav-link + .nav-link{margin-top:6px;}
.mobile-drawer .btn{margin-top:16px;}
body.nav-open .mobile-drawer{display:block;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(118deg,#0B4F4B 0%,#0E5F5A 48%,#12766F 100%);
  color:#fff;padding:66px 0 78px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.17;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;bottom:-150px;
  width:420px;height:420px;border-radius:50%;
  border:2px solid rgba(143,217,206,.30);
  box-shadow:0 0 0 40px rgba(143,217,206,.07),0 0 0 90px rgba(143,217,206,.05);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#EAF7F4;font-size:13.5px;font-weight:600;
  padding:7px 15px;border-radius:var(--r-pill);
}
.page-hero h1{
  font-size:clamp(32px,4.2vw,52px);
  line-height:1.24;letter-spacing:-.015em;
  margin:20px 0 0;font-weight:800;
}
.page-hero h1 em{font-style:normal;color:var(--c-mint);}
.hero-sub{
  margin-top:18px;font-size:17.5px;line-height:1.85;
  color:rgba(255,255,255,.88);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:14px;color:rgba(255,255,255,.78);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--c-mint);}
.entry-card{
  background:rgba(255,255,255,.97);
  color:var(--c-ink);
  border-radius:var(--r-lg);
  padding:26px 26px 20px;
  box-shadow:0 26px 52px rgba(3,38,36,.3);
}
.entry-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.entry-card-head h2{font-size:18.5px;font-weight:800;}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:700;color:var(--c-primary);
  background:var(--c-primary-soft);padding:5px 12px;border-radius:var(--r-pill);
}
.status-dot{width:8px;height:8px;border-radius:50%;background:#25A97C;box-shadow:0 0 0 3px rgba(37,169,124,.18);}
.entry-card p.hint{font-size:14px;color:var(--c-ink-mute);margin-bottom:12px;}
.entry-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 0;border-bottom:1px dashed var(--c-border);
  font-size:14.5px;
}
.entry-list li:last-child{border-bottom:0;}
.entry-list .k{color:var(--c-ink-soft);display:inline-flex;align-items:center;gap:8px;}
.entry-list .k i{color:var(--c-primary);font-size:13px;}
.entry-list .v{font-weight:700;color:var(--c-primary);text-align:right;}
.entry-card .btn-block{margin-top:12px;}

/* ============ 步骤条 ============ */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.step-card{
  position:relative;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);padding:30px 26px 28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card::before{
  content:"";position:absolute;left:26px;right:26px;top:0;height:4px;border-radius:0 0 6px 6px;
  background:var(--c-primary-soft);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CBE0DA;}
.step-num{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:18px;
}
.step-card:nth-child(2) .step-num{background:var(--c-accent-soft);color:var(--c-accent-dark);}
.step-card:nth-child(3) .step-num{background:#E2F6F2;color:#178F7E;}
.step-card h3{font-size:20px;font-weight:800;margin-bottom:10px;}
.step-card p{font-size:15.5px;color:var(--c-ink-soft);}
.step-tip{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-border);
  font-size:13.5px;color:var(--c-ink-mute);display:flex;gap:8px;align-items:flex-start;
}
.step-tip i{color:var(--c-accent);margin-top:3px;}

/* ============ 图文分区 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{position:relative;}
.split-media img{
  width:100%;border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  object-fit:cover;aspect-ratio:16/11;
}
.split-media .float-tag{
  position:absolute;left:-16px;bottom:-16px;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-md);padding:14px 18px;
  box-shadow:var(--sh-1);font-size:14px;font-weight:700;color:var(--c-primary);
  display:flex;align-items:center;gap:10px;
}
.split-media .float-tag i{color:var(--c-accent);}
.split-body h2{font-size:clamp(24px,2.9vw,34px);line-height:1.32;letter-spacing:-.01em;margin-bottom:16px;}
.split-body p{color:var(--c-ink-soft);margin-bottom:16px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 0;font-size:15.5px;color:var(--c-ink-soft);
}
.check-list i{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;font-size:11px;margin-top:5px;
}

/* ============ 注意事项卡片 ============ */
.notice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.notice-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);padding:24px 24px 22px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.notice-card:hover{transform:translateY(-3px);box-shadow:var(--sh-1);}
.notice-card:nth-child(2){border-left-color:var(--c-accent);}
.notice-card:nth-child(3){border-left-color:var(--c-mint);}
.notice-card:nth-child(4){border-left-color:#178F7E;}
.notice-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:13px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;font-size:17px;
}
.notice-card:nth-child(2) .notice-icon{background:var(--c-accent-soft);color:var(--c-accent-dark);}
.notice-card:nth-child(3) .notice-icon{background:#E2F6F2;color:#178F7E;}
.notice-card:nth-child(4) .notice-icon{background:#EDF3F1;color:var(--c-primary-dark);}
.notice-card h3{font-size:18px;font-weight:800;margin-bottom:8px;}
.notice-card p{font-size:15px;color:var(--c-ink-soft);}

/* ============ 卡点速查 ============ */
.quick-section{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.quick-item{
  background:var(--c-bg);border:1px solid var(--c-border);
  border-radius:var(--r-md);padding:22px 20px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.quick-item:hover{transform:translateY(-4px);box-shadow:var(--sh-1);background:#fff;}
.quick-item .qi-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.quick-item .qi-top i{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--c-primary);color:#fff;font-size:14px;
}
.quick-item:nth-child(2) .qi-top i{background:var(--c-accent);}
.quick-item:nth-child(3) .qi-top i{background:#178F7E;}
.quick-item:nth-child(4) .qi-top i{background:var(--c-primary-dark);}
.quick-item h3{font-size:16.5px;font-weight:800;}
.quick-item p{font-size:14.5px;color:var(--c-ink-soft);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-pill);padding:7px 15px;
  font-size:13.5px;color:var(--c-ink-soft);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--c-mint);color:var(--c-primary);background:var(--c-primary-soft);}
.tag.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item[open]{box-shadow:var(--sh-1);border-color:#C6DCD6;}
.faq-q{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 58px 20px 24px;
  font-size:17px;font-weight:700;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{color:var(--c-primary);}
.faq-q::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-primary);transition:transform .22s ease;
}
.faq-item[open] .faq-q::after{content:"–";}
.faq-item[open] .faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;
  background:var(--c-primary);border-radius:0 4px 4px 0;
}
.faq-a{
  padding:16px 24px 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-soft);
}
.faq-item[open] .faq-a{border-top:1px dashed var(--c-border);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(118deg,#0A4744 0%,#0E5F5A 60%,#12766F 100%);
  color:#fff;border-radius:26px;padding:50px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 22px 46px rgba(10,71,68,.24);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;
  border-radius:50%;border:1px solid rgba(143,217,206,.28);
  box-shadow:0 0 0 34px rgba(143,217,206,.07);
}
.cta-band h2{font-size:clamp(23px,2.8vw,32px);line-height:1.32;margin-bottom:12px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.86);max-width:620px;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:#0B2A28;color:rgba(255,255,255,.76);margin-top:84px;padding:62px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,var(--c-mint),var(--c-primary-light));color:#082A28;box-shadow:none;}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-col h4{font-size:15.5px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .2s ease,padding-left .2s ease;}
.footer-col ul li a:hover{color:var(--c-mint);padding-left:4px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.66);margin-bottom:12px;}
.footer-contact i{color:var(--c-mint);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 22px;}
  .hero-grid{gap:40px;}
}
@media (max-width:992px){
  .section{padding:64px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .step-grid{grid-template-columns:1fr 1fr;}
  .step-grid .step-card:last-child{grid-column:1 / -1;}
  .split{grid-template-columns:1fr;gap:34px;}
  .split-media .float-tag{left:12px;bottom:12px;}
  .notice-grid{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .main-nav,.header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{padding:48px 0 56px;}
  .hero-actions .btn{flex:1 1 auto;}
  .step-grid{grid-template-columns:1fr;}
  .step-grid .step-card:last-child{grid-column:auto;}
  .quick-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:18px 52px 18px 20px;}
  .cta-band{padding:34px 24px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .site-footer{padding:48px 0 22px;margin-top:64px;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .brand-text small{display:none;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .entry-card{padding:22px 18px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --brand:#0E5F5A;
  --brand-dark:#0A4441;
  --brand-deep:#082F2D;
  --accent:#FF7A32;
  --accent-dark:#E6631C;
  --mint:#8FD9CE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#10211F;
  --ink-soft:#4A5A57;
  --ink-mute:#6E7C79;
  --border:#DCE5E0;
  --error:#C94A4A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(14,95,90,.07);
  --shadow:0 12px 30px rgba(14,95,90,.10);
  --shadow-lg:0 18px 40px rgba(14,95,90,.16);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:96px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink);}
p{margin:0 0 16px;}
button{font-family:var(--font);cursor:pointer;}
input,textarea,select{font-family:var(--font);font-size:15px;}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip-link:focus{left:0;}

/* ---------- 顶部提示条 ---------- */
.topbar{
  background:var(--brand-deep);
  color:#D9EDE9;
  font-size:13px;
  letter-spacing:.02em;
}
.topbar .container{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;min-height:40px;padding-top:6px;padding-bottom:6px;}
.topbar span{display:inline-flex;align-items:center;gap:8px;}
.topbar i{color:var(--mint);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.logo-mark{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:linear-gradient(135deg,var(--brand) 0%,#12736C 100%);
  color:#fff;
  font-size:18px;
  box-shadow:var(--shadow-sm);
  position:relative;
  overflow:hidden;
}
.logo-mark::after{
  content:"";position:absolute;inset:auto -10px -14px -10px;height:22px;
  background:rgba(143,217,206,.35);transform:rotate(-8deg);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.nav-link:hover{background:#EAF2EF;color:var(--brand);border-color:var(--border);transform:translateY(-1px);}
.nav-link.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--shadow-sm);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);
  background:#fff;color:var(--brand);
  font-size:18px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  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;
  line-height:1.2;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,122,50,.28);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,122,50,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,50,.26);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(14,95,90,.07);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--brand);border-color:var(--border);}
.btn-light:hover{background:#fff;color:var(--accent);border-color:var(--mint);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:17px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;
  background:var(--bg);
  z-index:200;
  padding:22px 24px 40px;
  display:none;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--brand);font-size:18px;}
.drawer-link{
  display:block;padding:15px 18px;border-radius:14px;
  background:#fff;border:1px solid var(--border);
  color:var(--ink);font-size:16px;font-weight:600;
}
.drawer-link.is-active{background:var(--brand);color:#fff;border-color:var(--brand);}
.drawer-cta{margin-top:20px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);font-size:14px;color:var(--ink-mute);}
.crumb-bar .container{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-height:52px;}
.crumb-bar a{color:var(--ink-mute);}
.crumb-bar a:hover{color:var(--brand);}
.crumb-bar .sep{color:#B9C6C2;}
.crumb-current{color:var(--ink);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  background:linear-gradient(120deg,rgba(10,68,65,.95) 0%,rgba(14,95,90,.9) 55%,rgba(18,115,108,.86) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  padding:56px 0 64px;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(143,217,206,.35),rgba(143,217,206,0) 68%);
}
.article-hero .container{position:relative;z-index:2;max-width:960px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.badge-mint{background:rgba(143,217,206,.22);color:#CFF3EC;border:1px solid rgba(143,217,206,.4);}
.article-hero h1{
  font-size:42px;
  line-height:1.28;
  color:#fff;
  margin:20px 0 18px;
  letter-spacing:.01em;
}
.article-lead{
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:760px;
  margin-bottom:26px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:14px;color:rgba(255,255,255,.8);}
.article-meta span{display:inline-flex;align-items:center;gap:8px;}
.article-meta i{color:var(--mint);}

/* ---------- 布局 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:var(--space-4);
  align-items:start;
  padding:var(--space-6) 0 var(--space-5);
}
.reader{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:44px 48px 52px;
}
.article-content{font-size:17px;line-height:1.9;color:var(--ink);max-width:780px;}
.article-content h2{
  font-size:27px;
  margin:44px 0 18px;
  padding-left:16px;
  border-left:5px solid var(--brand);
  line-height:1.4;
}
.article-content h3{font-size:21px;margin:32px 0 14px;color:var(--brand-dark);}
.article-content p{margin:0 0 18px;}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:4px;}
.article-content ul li,.article-content ol li{position:relative;padding-left:24px;margin-bottom:10px;}
.article-content ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:3px;background:var(--mint);
}
.article-content ol{counter-reset:cms-ol;}
.article-content ol li{counter-increment:cms-ol;}
.article-content ol li::before{
  content:counter(cms-ol);
  position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:6px;
  background:rgba(14,95,90,.1);color:var(--brand);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-content blockquote{
  margin:24px 0;padding:20px 24px;
  background:#EDF7F4;
  border-left:4px solid var(--brand);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--brand-dark);
  font-size:16.5px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{margin:24px 0;border-radius:var(--radius-lg);box-shadow:var(--shadow);}
.article-content a{color:var(--brand);border-bottom:1px solid rgba(14,95,90,.35);}
.article-content a:hover{color:var(--accent);border-color:var(--accent);}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;border-radius:var(--radius-md);overflow:hidden;}
.article-content th,.article-content td{border:1px solid var(--border);padding:12px 16px;text-align:left;}
.article-content th{background:#EAF2EF;color:var(--brand-dark);font-weight:700;}
.article-content tbody tr:nth-child(even){background:#FAFBF9;}
.article-content code{background:#EAF2EF;color:var(--brand-dark);padding:2px 7px;border-radius:6px;font-size:14.5px;}
.article-content hr{border:0;height:1px;background:var(--border);margin:36px 0;}
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--border);
  border-radius:var(--radius-lg);
  background:#FBFAF7;
}
.empty-state i{font-size:34px;color:var(--mint);margin-bottom:14px;display:block;}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--ink-mute);margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.aside{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:24px;
}
.side-card h3{
  font-size:16px;
  margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
  color:var(--brand-dark);
}
.side-card h3 i{color:var(--accent);font-size:15px;}
.side-list li + li{margin-top:10px;}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--ink-soft);line-height:1.65;
}
.side-list a::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--mint);}
.side-list a:hover{color:var(--brand);}
.side-note{
  background:linear-gradient(150deg,var(--brand) 0%,#12736C 100%);
  color:#fff;border:none;
}
.side-note h3{color:#fff;}
.side-note h3 i{color:var(--mint);}
.side-note p{font-size:14.5px;color:rgba(255,255,255,.85);line-height:1.8;}
.side-note .btn{width:100%;margin-top:6px;}

/* ---------- 相关推荐 ---------- */
.section{padding:var(--space-6) 0;}
.section-head{max-width:720px;margin-bottom:var(--space-4);}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:34px;line-height:1.32;}
.section-head p{margin-top:14px;color:var(--ink-mute);font-size:16px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-3);}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--mint);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E4EDE9;}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.05);}
.card-media .tag{
  position:absolute;left:14px;top:14px;
  background:rgba(8,47,45,.82);color:#E7F6F3;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;backdrop-filter:blur(4px);
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:19px;line-height:1.5;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{font-size:15px;color:var(--ink-mute);line-height:1.78;margin:0;}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--border);font-size:13.5px;color:var(--ink-mute);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.is-open{box-shadow:var(--shadow);border-color:var(--mint);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  background:none;border:none;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  background:#EAF2EF;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;transition:background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:linear-gradient(115deg,var(--brand-deep) 0%,var(--brand) 62%,#12736C 100%);
  border-radius:22px;
  padding:56px 48px;
  color:#fff;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:32px;
  align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,50,.35),rgba(255,122,50,0) 70%);
}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.85);font-size:16px;margin:0;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:#C7DCD8;
  padding:64px 0 26px;
  margin-top:var(--space-6);
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(199,220,216,.18);
}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(143,217,206,.18);box-shadow:none;}
.site-footer p{color:#A9C4BF;font-size:14.5px;line-height:1.85;margin:0;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{color:#C7DCD8;font-size:14.5px;}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#A9C4BF;font-size:14.5px;line-height:1.7;}
.footer-contact i{color:var(--mint);margin-top:5px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:13.5px;color:#8FAFAA;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-hero h1{font-size:36px;}
  .layout{grid-template-columns:minmax(0,1fr) 292px;}
}
@media (max-width:992px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .layout{grid-template-columns:1fr;}
  .aside{position:static;}
  .reader{padding:36px 28px 42px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section-head h2{font-size:29px;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:768px){
  .topbar .container{justify-content:flex-start;}
  .header-inner{min-height:66px;gap:14px;}
  .brand-text{font-size:17px;}
  .header-actions .btn{display:none;}
  .article-hero{padding:40px 0 46px;}
  .article-hero h1{font-size:31px;}
  .article-lead{font-size:16px;}
  .crumb-current{max-width:210px;}
  .reader{padding:28px 20px 34px;}
  .article-content{font-size:16px;}
  .article-content h2{font-size:23px;}
  .grid-3{grid-template-columns:1fr;}
  .section{padding:48px 0;}
}
@media (max-width:576px){
  .container{padding:0 18px;}
  .cta-band{padding:34px 22px;border-radius:18px;}
  .cta-band h2{font-size:25px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .side-card{padding:20px;}
}

/* roulang page: category2 */
:root{
  --brand:#0E5F5A;
  --brand-dark:#0A4743;
  --brand-deep:#083734;
  --brand-soft:#E4F1EE;
  --brand-soft-2:#F0F7F4;
  --accent:#FF7A32;
  --accent-dark:#E8651F;
  --mint:#8FD9CE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#10211F;
  --ink-soft:#4A5F5C;
  --ink-mute:#6E817E;
  --line:#DCE5E0;
  --danger:#C94A4A;
  --radius-xl:22px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-xs:0 4px 14px rgba(14,95,90,.06);
  --shadow:0 12px 30px rgba(14,95,90,.10);
  --shadow-hover:0 18px 40px rgba(14,95,90,.16);
  --container:1200px;
  --gutter:24px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
a:hover{color:var(--accent-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:3px solid rgba(143,217,206,.85);outline-offset:2px;border-radius:6px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;text-align:center;
  transition:transform .18s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(255,122,50,.28);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,122,50,.36);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,50,.28);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(14,95,90,.35);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--brand-dark);border-color:#fff;}
.btn-light:hover{background:var(--mint);color:var(--brand-deep);transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(4px);}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;line-height:1.5;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge-accent{background:#FFEDE2;color:var(--accent-dark);}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--ink-soft);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:76px;}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(14,95,90,.24);
}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.logo:hover .logo-text{color:var(--brand);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-link{
  padding:9px 15px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:var(--ink-soft);
  border:1px solid transparent;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,95,90,.22);}
.nav-link.is-active:hover{background:var(--brand-dark);color:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:13px;
  background:var(--brand-soft);border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand-dark);font-size:17px;
}
.nav-toggle:hover{background:var(--mint);}
.nav-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:14px var(--gutter) 22px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:var(--radius-md);
  font-weight:600;color:var(--ink-soft);background:var(--brand-soft-2);
  margin-bottom:10px;
}
.nav-drawer a.is-active{background:var(--brand);color:#fff;}
.nav-drawer a:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav-drawer .btn{margin-top:6px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(8,55,52,.94) 0%,rgba(14,95,90,.88) 52%,rgba(14,95,90,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(143,217,206,.35);
  box-shadow:0 0 0 46px rgba(143,217,206,.07),0 0 0 92px rgba(143,217,206,.05);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;
  padding:74px 0 82px;
}
.hero h1{font-size:clamp(32px,3.6vw,52px);color:#fff;margin-bottom:18px;}
.hero h1 span{color:var(--mint);}
.hero .lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:560px;margin-bottom:16px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 28px;}
.hero-tags span{
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;color:#EAF7F4;
  background:rgba(255,255,255,.12);border:1px solid rgba(143,217,206,.35);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.entry-card{
  background:#fff;color:var(--ink);border-radius:var(--radius-xl);
  padding:26px;box-shadow:0 24px 50px rgba(4,32,30,.28);
}
.entry-card h2{font-size:19px;margin-bottom:6px;}
.entry-card .entry-sub{font-size:14px;color:var(--ink-mute);margin-bottom:18px;}
.entry-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);
}
.entry-list li:last-child{border-bottom:0;padding-bottom:0;}
.entry-list .ico{
  flex:0 0 34px;width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:14px;
}
.entry-list strong{display:block;font-size:15px;}
.entry-list small{font-size:13px;color:var(--ink-mute);line-height:1.7;display:block;}
.entry-card .btn{margin-top:20px;}

/* ============ 通用板块 ============ */
.section{padding:84px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}
.section-head h2{font-size:clamp(26px,2.8vw,38px);margin-bottom:14px;}
.section-head p{color:var(--ink-soft);font-size:16.5px;}

/* ============ 分类矩阵 ============ */
.matrix{display:grid;grid-template-columns:272px minmax(0,1fr);gap:34px;align-items:start;}
.side-panel{
  position:sticky;top:100px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:24px 22px;box-shadow:var(--shadow-xs);
}
.side-panel h3{font-size:16px;margin-bottom:6px;}
.side-panel .side-hint{font-size:13px;color:var(--ink-mute);margin-bottom:16px;}
.side-list li + li{margin-top:8px;}
.side-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 13px;border-radius:var(--radius-md);
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  border:1px solid transparent;
}
.side-list a i{color:var(--brand);font-size:13px;width:16px;text-align:center;}
.side-list a:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(14,95,90,.16);transform:translateX(3px);}
.side-note{
  margin-top:20px;padding:16px;border-radius:var(--radius-md);
  background:var(--brand-soft-2);border:1px dashed rgba(14,95,90,.22);
  font-size:13.5px;color:var(--ink-soft);line-height:1.75;
}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.matrix-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(14,95,90,.28);}
.card-icon{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-soft) 0%,#D8EDE8 100%);
  color:var(--brand);font-size:19px;margin-bottom:16px;
}
.matrix-card:nth-child(3n) .card-icon{background:linear-gradient(135deg,#FFEDE2 0%,#FFDCC8 100%);color:var(--accent-dark);}
.matrix-card h3{font-size:19px;margin-bottom:10px;}
.matrix-card p{font-size:14.8px;color:var(--ink-soft);line-height:1.8;margin-bottom:16px;}
.matrix-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);}
.matrix-card .card-foot small{font-size:12.5px;color:var(--ink-mute);}

/* ============ 图文分区 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:64px;}
.split.reverse .split-media{order:2;}
.split-media img{border-radius:var(--radius-xl);box-shadow:var(--shadow);border:1px solid rgba(14,95,90,.10);}
.split-body h2{font-size:clamp(24px,2.4vw,32px);margin-bottom:16px;}
.split-body > p{color:var(--ink-soft);font-size:16.5px;margin-bottom:22px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-size:15.5px;color:var(--ink-soft);}
.check-list i{color:var(--brand);margin-top:6px;font-size:14px;}
.check-list strong{color:var(--ink);}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 22px;box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step .num{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;margin-bottom:14px;
}
.step:nth-child(even) .num{background:var(--accent);}
.step h3{font-size:17.5px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-soft);}

/* ============ 场景卡 ============ */
.scenario-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.scenario-card{
  background:var(--brand-soft-2);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff;}
.scenario-card .tag{margin-bottom:14px;}
.scenario-card h3{font-size:17.5px;margin-bottom:10px;}
.scenario-card p{font-size:14.6px;color:var(--ink-soft);}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  margin-bottom:14px;overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--shadow-xs);border-color:rgba(14,95,90,.24);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 60px 20px 22px;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";width:4px;height:0;border-radius:4px;background:var(--brand);
  transition:height .25s ease;flex:0 0 4px;
}
.faq-item[open] summary::before{height:26px;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;line-height:1;
}
.faq-item[open] summary::after{content:"−";background:var(--accent);color:#fff;}
.faq-item[open] summary{color:var(--brand-dark);}
.faq-answer{padding:0 24px 22px 40px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);animation:fadeIn .25s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:56px 48px;color:#fff;
  background-image:linear-gradient(120deg,rgba(8,55,52,.95) 0%,rgba(14,95,90,.92) 60%,rgba(14,95,90,.82) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  box-shadow:0 24px 50px rgba(8,55,52,.26);
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(143,217,206,.3);box-shadow:0 0 0 40px rgba(143,217,206,.06);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(23px,2.4vw,32px);margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.85);font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 表单 ============ */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px;box-shadow:var(--shadow-xs);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:#fff;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input,.field select{height:48px;}
.field textarea{min-height:118px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(143,217,206,.6);
}
.field .hint{font-size:13px;color:var(--ink-mute);margin-top:6px;}
.field .err{font-size:13px;color:var(--danger);margin-top:6px;display:none;}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field.has-error .err{display:block;}
.form-note{font-size:13px;color:var(--ink-mute);margin-top:14px;line-height:1.75;}
.contact-side li{display:flex;gap:13px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line);font-size:14.8px;color:var(--ink-soft);}
.contact-side li:last-child{border-bottom:0;}
.contact-side i{color:var(--brand);margin-top:6px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:66px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.site-footer p{font-size:14.4px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{font-size:14.4px;color:rgba(255,255,255,.75);}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:rgba(255,255,255,.75);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--mint);margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.4px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 20px;}
  .header-inner{gap:16px;}
  .nav-link{padding:8px 12px;font-size:14.5px;}
}
@media (max-width:992px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .nav-cta{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:38px;padding:56px 0 62px;}
  .matrix{grid-template-columns:1fr;gap:24px;}
  .side-panel{position:static;padding:20px;}
  .side-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:8px;margin:0 -4px;}
  .side-list li{flex:0 0 auto;margin:0;}
  .side-list li + li{margin-top:0;}
  .side-list a{white-space:nowrap;background:var(--brand-soft-2);}
  .side-note{margin-top:14px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:52px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scenario-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .form-wrap{grid-template-columns:1fr;gap:30px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .hero h1{font-size:clamp(30px,7vw,36px);}
  .hero .lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .card-grid{grid-template-columns:1fr;}
  .scenario-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 26px;border-radius:var(--radius-lg);}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .faq-item summary{font-size:16px;padding:18px 56px 18px 18px;}
  .faq-answer{padding:0 18px 20px 36px;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .header-inner{min-height:68px;}
  .logo-text{font-size:16px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .section-head h2{font-size:26px;}
  .matrix-card{padding:22px 18px;}
  .entry-card{padding:22px 18px;}
}

/* roulang page: category4 */
:root{
  --brand:#0E5F5A;
  --brand-deep:#0A4744;
  --brand-soft:#E4F1EE;
  --accent:#FF7A32;
  --accent-deep:#E9641D;
  --mint:#8FD9CE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink:#10211F;
  --muted:#5B6B68;
  --line:#DCE5E0;
  --error:#C94A4A;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(14,95,90,.10);
  --shadow-hover:0 18px 40px rgba(14,95,90,.16);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;letter-spacing:.2px;
  color:var(--brand);white-space:nowrap;
}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),#16908A);
  color:#fff;font-size:16px;
  box-shadow:0 8px 18px rgba(14,95,90,.24);
  flex:none;
}
.main-nav{
  display:flex;align-items:center;gap:6px;
  margin-left:auto;flex-wrap:wrap;
}
.nav-link{
  padding:9px 15px;border-radius:999px;
  font-size:15px;color:var(--muted);
  border:1px solid transparent;
  position:relative;
  transition:all .22s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.is-active{
  color:var(--brand);
  background:var(--brand-soft);
  border-color:rgba(14,95,90,.18);
  font-weight:600;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-left:8px;
  padding:11px 22px;border-radius:999px;
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 10px 22px rgba(255,122,50,.30);
  transition:all .22s ease;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,122,50,.36);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:18px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-size:16px;font-weight:600;border:1px solid transparent;
  transition:all .22s ease;cursor:pointer;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 24px rgba(255,122,50,.28);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,122,50,.34);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(14,95,90,.35);}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text i{transition:transform .22s ease;}
.btn-text:hover i{transform:translateX(4px);}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 通用板块 ===== */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  margin-bottom:16px;
}
.section-head h2{font-size:36px;line-height:1.35;letter-spacing:-.4px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(115deg,rgba(10,71,68,.94),rgba(14,95,90,.78)),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  padding:84px 0 76px;
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-160px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(143,217,206,.34),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.hero .eyebrow{background:rgba(255,255,255,.14);color:#EAFFF9;}
.hero h1{
  font-size:48px;line-height:1.22;letter-spacing:-.8px;
  margin-bottom:20px;
}
.hero h1 span{color:var(--mint);}
.hero-lead{font-size:17.5px;color:rgba(255,255,255,.86);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:38px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.2);
}
.hero-facts div strong{display:block;font-size:26px;font-weight:700;color:#fff;}
.hero-facts div span{font-size:14px;color:rgba(255,255,255,.76);}
.hero-card{
  background:rgba(255,255,255,.96);color:var(--ink);
  border-radius:var(--radius-lg);
  padding:26px;box-shadow:0 24px 50px rgba(6,42,40,.28);
}
.hero-card h3{font-size:20px;margin-bottom:6px;}
.hero-card p{font-size:14.5px;color:var(--muted);}
.hero-card ul{margin-top:18px;display:grid;gap:12px;}
.hero-card li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px;border-radius:var(--radius-sm);
  background:var(--bg);border:1px solid var(--line);
  font-size:15px;
}
.hero-card li i{color:var(--brand);margin-top:4px;}

/* ===== 面包屑 ===== */
.crumb{
  display:flex;gap:8px;align-items:center;flex-wrap:wrap;
  font-size:14px;color:var(--muted);
  padding:18px 0 0;
}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:11px;opacity:.6;}

/* ===== 数据带 ===== */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow);
}
.stat-item{text-align:center;padding:0 12px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-item strong{display:block;font-size:32px;color:var(--brand);font-weight:700;letter-spacing:-.5px;}
.stat-item span{font-size:14px;color:var(--muted);}

/* ===== 时间线 ===== */
.timeline{position:relative;margin-top:10px;padding-left:46px;}
.timeline::before{
  content:"";position:absolute;left:15px;top:12px;bottom:12px;
  width:2px;background:linear-gradient(180deg,var(--brand),var(--mint));
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:26px;
  width:16px;height:16px;border-radius:50%;
  background:#fff;border:4px solid var(--brand);
  box-shadow:0 0 0 4px rgba(143,217,206,.34);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.tl-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px;}
.tl-index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:30px;padding:0 12px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:13px;font-weight:700;letter-spacing:.6px;
}
.tl-card h3{font-size:21px;}
.tl-card p{color:var(--muted);font-size:16px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;
}
.tag.warn{background:#FFF0E7;color:var(--accent-deep);}

/* ===== 设备卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.device-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.device-card img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.device-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.device-body h3{font-size:21px;}
.device-body p{color:var(--muted);font-size:15.5px;flex:1;}
.device-card:hover h3{color:var(--brand);}
.spec-list{display:grid;gap:8px;font-size:14.5px;color:var(--muted);}
.spec-list li{display:flex;gap:8px;align-items:flex-start;}
.spec-list i{color:var(--brand);font-size:12px;margin-top:6px;}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item.is-open{box-shadow:var(--shadow);border-color:rgba(14,95,90,.28);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:none;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:none;width:30px;height:30px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;transition:all .22s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
  border-left:4px solid transparent;
}
.faq-item.is-open .faq-a{border-left-color:var(--brand);}
.faq-a p{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);}

/* ===== CTA ===== */
.cta-block{
  background:linear-gradient(120deg,var(--brand-deep),#12736C);
  border-radius:26px;color:#fff;
  padding:56px 48px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(143,217,206,.32),transparent 70%);
}
.cta-block h2{font-size:32px;line-height:1.35;position:relative;z-index:2;}
.cta-block p{margin-top:14px;color:rgba(255,255,255,.84);position:relative;z-index:2;font-size:16.5px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2;}
.cta-actions .btn{width:100%;}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.14);}

/* ===== 表单 ===== */
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.form-panel .full{grid-column:1 / -1;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:0 14px;height:48px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--bg);color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:130px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(143,217,206,.55);
}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;}
.field.has-error input,.field.has-error textarea{border-color:var(--error);}
.field .err{font-size:13px;color:var(--error);margin-top:6px;display:none;}
.field.has-error .err{display:block;}
.form-panel .actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-note{font-size:13.5px;color:var(--muted);}
.success-bar{
  grid-column:1 / -1;display:none;
  padding:12px 16px;border-radius:var(--radius-sm);
  background:#E7F6F1;color:var(--brand);font-size:14.5px;font-weight:600;
}
.success-bar.show{display:block;}

/* ===== 页脚 ===== */
.site-footer{background:#0B2B29;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-brand .logo-mark{background:linear-gradient(135deg,#16908A,var(--mint));}
.site-footer p{font-size:14.5px;line-height:1.85;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;font-size:14.5px;}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--mint);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .hero h1{font-size:42px;}
  .section{padding:76px 0;}
}
@media (max-width:992px){
  .header-inner{min-height:70px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:18px 20px 24px;box-shadow:0 18px 34px rgba(14,95,90,.14);
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 16px;border-radius:12px;}
  .nav-cta{margin-left:0;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero h1{font-size:38px;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:18px;}
  .stat-item{border-right:none;padding:10px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-block{grid-template-columns:1fr;padding:44px 32px;}
  .form-panel{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:27px;}
  .hero{padding:60px 0 56px;}
  .hero h1{font-size:33px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:18px;}
  .timeline{padding-left:34px;}
  .timeline::before{left:9px;}
  .tl-item::before{left:-30px;width:14px;height:14px;}
  .tl-card{padding:20px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .brand{font-size:16px;}
  .hero h1{font-size:30px;}
  .stat-band{grid-template-columns:1fr;}
  .cta-block{padding:34px 22px;}
  .cta-block h2{font-size:25px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
}

/* roulang page: category3 */
:root{
  --main:#0E5F5A;
  --main-dark:#0A4844;
  --main-soft:#E3F1EE;
  --accent:#FF7A32;
  --accent-dark:#E8651C;
  --mint:#8FD9CE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#FBF9F5;
  --ink:#10211F;
  --muted:#5C6F6B;
  --border:#DCE5E0;
  --error:#C94A4A;
  --radius-xl:22px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 12px 30px rgba(14,95,90,.10);
  --shadow-2:0 18px 40px rgba(14,95,90,.16);
  --shadow-3:0 26px 60px rgba(14,95,90,.20);
  --container:1200px;
  --section-y:88px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;letter-spacing:-.01em;}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,122,50,.28);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,122,50,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,122,50,.24);}
.btn-outline{background:transparent;color:var(--main);border-color:var(--main);}
.btn-outline:hover{background:var(--main);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:#fff;color:var(--main);transform:translateY(-2px);}
.btn-text{color:var(--main);padding:8px 0;font-weight:600;gap:8px;}
.btn-text i{transition:transform .22s ease;}
.btn-text:hover i{transform:translateX(5px);}
.btn:disabled,.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:78px;}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--main),#16857E);
  color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(14,95,90,.28);
}
.logo:hover .logo-mark{transform:rotate(-6deg) scale(1.04);}
.logo-mark{transition:transform .3s ease;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  padding:9px 15px;border-radius:999px;font-size:15px;font-weight:500;color:var(--muted);
  position:relative;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--main);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--main);background:rgba(14,95,90,.07);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:var(--main);color:#fff;box-shadow:0 10px 22px rgba(14,95,90,.24);}
.nav-link.is-active::after{display:none;}
.header-cta{margin-left:12px;padding:12px 22px;font-size:15px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--main);font-size:18px;place-items:center;margin-left:auto;
}
.nav-toggle:hover{background:var(--main-soft);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(120deg,rgba(10,72,68,.94),rgba(14,95,90,.86) 55%,rgba(14,95,90,.72)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(143,217,206,.32),transparent 66%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 78px;display:grid;grid-template-columns:1.25fr .85fr;gap:48px;align-items:center;}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb i{font-size:10px;opacity:.7;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(143,217,206,.20);border:1px solid rgba(143,217,206,.5);
  font-size:13.5px;font-weight:600;color:#DCF5F0;margin-bottom:20px;
}
.hero h1{font-size:clamp(32px,4.2vw,52px);line-height:1.24;margin-bottom:20px;text-shadow:0 3px 18px rgba(6,50,47,.30);}
.hero h1 em{font-style:normal;color:var(--mint);}
.hero-lead{font-size:17px;line-height:1.9;color:rgba(255,255,255,.88);max-width:620px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.hero-card{
  background:rgba(255,255,255,.97);color:var(--ink);border-radius:var(--radius-xl);
  padding:26px;box-shadow:var(--shadow-3);
}
.hero-card h2{font-size:19px;margin-bottom:6px;}
.hero-card p{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.quick-list{display:grid;gap:8px;}
.quick-item{
  display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:14px;
  border:1px solid var(--border);background:var(--surface-2);transition:all .22s ease;
}
.quick-item:hover{border-color:var(--main);background:var(--main-soft);transform:translateX(4px);}
.quick-num{
  width:30px;height:30px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;
  background:var(--main);color:#fff;font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.quick-item span{font-size:14.5px;font-weight:600;}
.quick-item i{margin-left:auto;color:var(--muted);font-size:13px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:780px;margin-bottom:30px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--main);
  background:var(--main-soft);padding:6px 14px;border-radius:999px;margin-bottom:14px;letter-spacing:.02em;
}
.section h2{font-size:clamp(26px,3vw,38px);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16.5px;}

/* ---------- 筛选标签 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--muted);font-size:14px;font-weight:500;
}
.filter-chip:hover{border-color:var(--main);color:var(--main);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.filter-chip.is-active{background:var(--main);border-color:var(--main);color:#fff;box-shadow:0 10px 22px rgba(14,95,90,.22);}
.filter-chip i{font-size:12px;}

/* ---------- 问答列表 ---------- */
.qa-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:34px;align-items:start;}
.qa-list{display:grid;gap:18px;}
.qa-row{
  display:grid;grid-template-columns:236px minmax(0,1fr);gap:22px;padding:16px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.qa-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9DBD5;}
.qa-row:hover h3{color:var(--main);}
.qa-row:hover .row-more i{transform:translateX(5px);}
.qa-thumb{position:relative;overflow:hidden;border-radius:var(--radius-md);}
.qa-thumb img{width:100%;height:152px;object-fit:cover;border-radius:var(--radius-md);transition:transform .4s ease;}
.qa-row:hover .qa-thumb img{transform:scale(1.05);}
.qa-body{display:flex;flex-direction:column;gap:9px;padding:4px 4px 4px 0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--main-soft);color:var(--main);letter-spacing:.02em;
}
.badge.warm{background:rgba(255,122,50,.14);color:var(--accent-dark);}
.qa-body h3{font-size:19.5px;line-height:1.45;transition:color .22s ease;}
.qa-body p{font-size:15px;color:var(--muted);line-height:1.8;}
.qa-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--muted);margin-top:auto;padding-top:6px;}
.qa-meta span{display:inline-flex;align-items:center;gap:6px;}
.row-more{margin-left:auto;color:var(--main);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:7px;}
.row-more i{transition:transform .25s ease;}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:100px;display:grid;gap:20px;}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.side-card h3 i{color:var(--accent);}
.side-list li + li{border-top:1px dashed var(--border);}
.side-list a{
  display:flex;align-items:center;gap:10px;padding:12px 0;font-size:14.5px;font-weight:500;color:var(--ink);
}
.side-list a i:first-child{color:var(--main);font-size:13px;}
.side-list a i:last-child{margin-left:auto;font-size:12px;color:var(--muted);transition:transform .22s ease;}
.side-list a:hover{color:var(--main);}
.side-list a:hover i:last-child{transform:translateX(4px);color:var(--main);}
.side-tip{background:linear-gradient(150deg,var(--main),#0A4844);color:#fff;border:0;}
.side-tip h3{color:#fff;}
.side-tip h3 i{color:var(--mint);}
.side-tip p{font-size:14px;color:rgba(255,255,255,.84);line-height:1.85;margin-bottom:16px;}
.side-tip .btn{padding:11px 20px;font-size:14.5px;}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:34px;flex-wrap:wrap;}
.page-item{
  min-width:42px;height:42px;padding:0 14px;border-radius:12px;border:1px solid var(--border);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:14.5px;font-weight:600;
}
.page-item:hover{border-color:var(--main);color:var(--main);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.page-item.is-active{background:var(--main);border-color:var(--main);color:#fff;box-shadow:0 10px 22px rgba(14,95,90,.22);}
.page-item.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto;}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;overflow:hidden;transition:box-shadow .25s ease;}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:700;color:var(--ink);
  position:relative;transition:color .22s ease,background-color .22s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--main);transform:scaleY(0);transform-origin:center;transition:transform .28s ease;
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q:hover{color:var(--main);background:var(--surface-2);}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:var(--main-soft);color:var(--main);font-size:13px;transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.faq-item.is-open .faq-icon{background:var(--main);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease;}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.88;color:var(--muted);}

/* ---------- 反馈表单 ---------- */
.feedback-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start;}
.feedback-info h2{font-size:clamp(26px,3vw,36px);margin-bottom:16px;}
.feedback-info > p{color:var(--muted);font-size:16.5px;margin-bottom:26px;}
.info-points{display:grid;gap:14px;}
.info-point{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px;box-shadow:var(--shadow-1);}
.info-point i{color:var(--accent);font-size:17px;margin-top:5px;}
.info-point strong{display:block;font-size:15.5px;margin-bottom:2px;}
.info-point span{font-size:14px;color:var(--muted);line-height:1.75;}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-xl);padding:30px;box-shadow:var(--shadow-2);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field label .req{color:var(--error);}
.field input,.field select,.field textarea{
  height:48px;padding:0 15px;border-radius:var(--radius-md);border:1px solid var(--border);
  background:var(--surface-2);font-size:15px;transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.field textarea{height:120px;padding:13px 15px;resize:vertical;line-height:1.75;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#C4D6D1;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--main);background:#fff;box-shadow:0 0 0 4px rgba(143,217,206,.42);
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--error);background:#FDF4F4;}
.field-error{font-size:13px;color:var(--error);display:none;}
.field.is-error .field-error{display:block;}
.form-note{font-size:13px;color:var(--muted);line-height:1.75;margin-top:14px;}
.form-actions{margin-top:20px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.form-success{
  display:none;align-items:center;gap:10px;margin-top:18px;padding:14px 18px;border-radius:var(--radius-md);
  background:var(--main-soft);color:var(--main);font-size:14.5px;font-weight:600;border:1px solid rgba(14,95,90,.18);
}
.form-success.is-visible{display:flex;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--main),#0A4844);
  border-radius:var(--radius-xl);padding:52px;color:#fff;
  display:grid;grid-template-columns:1.5fr auto;gap:32px;align-items:center;
  box-shadow:var(--shadow-3);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,50,.30),transparent 68%);
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:12px;position:relative;z-index:1;}
.cta-band p{color:rgba(255,255,255,.86);font-size:16.5px;max-width:640px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B2F2C;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:17.5px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:linear-gradient(140deg,var(--accent),#FF9A5C);box-shadow:none;}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);}
.footer-col h4{font-size:15.5px;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--mint);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.75;}
.footer-contact i{color:var(--mint);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.56);
}

/* ---------- 移动端固定 CTA ---------- */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;padding:10px 16px;
  background:rgba(255,255,255,.96);border-top:1px solid var(--border);backdrop-filter:blur(10px);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 20px;}
  .hero-inner{grid-template-columns:1.15fr .85fr;gap:36px;}
  .qa-layout{grid-template-columns:minmax(0,1fr) 288px;gap:26px;}
}
@media (max-width:992px){
  :root{--section-y:68px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:52px 0 62px;}
  .hero-card{max-width:560px;}
  .qa-layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .feedback-wrap{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .header-inner{height:70px;gap:12px;}
  .logo{font-size:16.5px;}
  .logo-mark{width:34px;height:34px;border-radius:11px;font-size:14px;}
  .nav-toggle{display:grid;}
  .main-nav{
    position:fixed;top:70px;left:0;right:0;bottom:0;margin:0;
    flex-direction:column;align-items:stretch;gap:8px;padding:24px 20px 100px;
    background:var(--bg);border-top:1px solid var(--border);
    transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;z-index:75;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{width:100%;padding:15px 18px;font-size:16px;border-radius:14px;background:#fff;border:1px solid var(--border);}
  .nav-link::after{display:none;}
  .nav-link:hover{background:var(--main-soft);border-color:var(--main);}
  .nav-link.is-active{background:var(--main);color:#fff;border-color:var(--main);}
  .header-cta{margin-left:0;padding:11px 16px;font-size:14px;}
  .mobile-cta{display:block;}
  .section{padding:52px 0;}
  .qa-row{grid-template-columns:1fr;gap:16px;}
  .qa-thumb img{height:190px;}
  .qa-body{padding:0 2px 2px;}
  .cta-band{padding:32px 24px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .hero h1{font-size:31px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .header-cta{display:none;}
  .filter-bar{gap:8px;}
  .filter-chip{padding:8px 14px;font-size:13.5px;}
  .qa-row{padding:14px;}
  .qa-thumb img{height:168px;}
  .qa-body h3{font-size:17.5px;}
  .page-item{min-width:38px;height:38px;font-size:13.5px;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 18px 18px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;}
  .cta-band{padding:28px 20px;}
}