/* roulang page: index */
:root{
  --c-primary:#1B5EA8;
  --c-primary-deep:#0E3F87;
  --c-primary-050:#EAF2FB;
  --c-primary-100:#D6E5F8;
  --c-accent:#178F7E;
  --c-warn:#C97B21;
  --c-ink:#16202E;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#8090A3;
  --c-line:#E3E9F1;
  --c-line-strong:#CFD9E6;
  --c-bg:#FBFCFE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F5F8FC;
  --r-card:12px;
  --r-img:10px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-rest:0 1px 2px rgba(22,32,46,.04),0 6px 20px rgba(22,32,46,.05);
  --sh-hover:0 10px 28px rgba(27,94,168,.12);
  --sp-section:104px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color 160ms ease;}
a:hover{color:var(--c-primary-deep);text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--c-ink);}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-section) 0;}
.section--alt{background:var(--c-surface-alt);}
.section--tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{display:block;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--c-primary);text-transform:uppercase;margin-bottom:10px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-ink-2);font-size:15px;margin:0;}
.lead{color:var(--c-ink-2);}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;background:rgba(251,252,254,.94);border-bottom:1px solid var(--c-line);}
.site-header.is-stuck{position:fixed;top:0;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 rgba(22,32,46,.02);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.brand{display:flex;flex-direction:column;line-height:1.2;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand__main{font-size:19px;font-weight:700;color:var(--c-primary-deep);letter-spacing:.02em;}
.brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3);margin-top:4px;}
.main-nav{display:flex;align-items:center;gap:30px;}
.main-nav a{position:relative;font-size:15px;color:var(--c-ink-2);padding:6px 0;text-decoration:none;}
.main-nav a::after{content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;background:var(--c-primary);transition:width 160ms ease,left 160ms ease;}
.main-nav a:hover{color:var(--c-primary);text-decoration:none;}
.main-nav a:hover::after{width:60%;left:20%;}
.main-nav a.is-active{color:var(--c-primary);font-weight:600;}
.main-nav a.is-active::after{width:60%;left:20%;}
.header-cta{margin-left:8px;}
.nav-toggle{display:none;width:44px;height:44px;background:transparent;border:0;padding:12px 10px;cursor:pointer;}
.nav-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px;}
.nav-toggle span+span{margin-top:8px;}
.nav-drawer{display:none;}

/* anchors row */
.anchor-bar{border-bottom:1px solid var(--c-line);background:#fff;}
.anchor-scroll{display:flex;align-items:center;gap:24px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-scroll a{font-size:14px;color:var(--c-ink-2);white-space:nowrap;position:relative;padding-left:14px;}
.anchor-scroll a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--c-line-strong);}
.anchor-scroll a:hover{color:var(--c-primary);text-decoration:none;}
.anchor-scroll a:hover::before{background:var(--c-primary);}
.anchor-scroll a.is-current{color:var(--c-primary);font-weight:600;}
.anchor-scroll a.is-current::before{background:var(--c-primary);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1;padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:background 180ms ease,color 180ms ease,box-shadow 180ms ease,transform 180ms ease,border-color 180ms ease;text-decoration:none;min-height:44px;}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-deep);color:#fff;box-shadow:var(--sh-hover);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong);}
.btn--ghost:hover{background:var(--c-primary-050);color:var(--c-primary-deep);border-color:var(--c-primary-100);}
.btn--text{background:transparent;color:var(--c-primary);padding:8px 0;min-height:auto;}
.btn--text .arrow{transition:transform 180ms ease;}
.btn--text:hover{color:var(--c-primary-deep);text-decoration:underline;}
.btn--text:hover .arrow{transform:translateX(3px);}
.btn--small{padding:10px 18px;font-size:14px;}
.btn--block{width:100%;}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#FBFCFE,#EAF2FB);border-bottom:1px solid var(--c-line);}
.hero-inner{display:flex;align-items:center;min-height:76vh;padding:72px 0;}
.hero-copy h1{margin-bottom:20px;max-width:16em;}
.hero-copy .hero-sub{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:34em;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-points{display:flex;flex-wrap:wrap;gap:0 28px;margin-top:38px;padding-top:24px;border-top:1px solid var(--c-line-strong);}
.hero-points li{font-size:14px;color:var(--c-ink-2);position:relative;padding-left:16px;}
.hero-points li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero-media{position:relative;}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--c-line);}
.hero-media .media-badge{position:absolute;left:16px;bottom:16px;background:#fff;border:1px solid var(--c-primary-100);color:var(--c-primary-deep);font-size:12px;font-weight:500;padding:6px 12px;border-radius:var(--r-pill);}

/* ---------- highlights ---------- */
.feature-row{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:36px 0;border-top:1px solid var(--c-line);}
.feature-row:last-child{border-bottom:1px solid var(--c-line);}
.feature-body{display:flex;gap:20px;align-items:flex-start;}
.feature-num{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--c-primary);padding-top:6px;min-width:34px;}
.feature-icon{width:44px;height:44px;border-radius:10px;background:var(--c-primary-050);border:1px solid var(--c-primary-100);display:flex;align-items:center;justify-content:center;color:var(--c-primary);flex:0 0 auto;}
.feature-icon svg{width:24px;height:24px;}
.feature-text h3{margin-bottom:10px;}
.feature-text p{font-size:15px;color:var(--c-ink-2);margin:0;}
.feature-side{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-rest);}
.feature-side dl{margin:0;}
.feature-side dt{font-size:13px;color:var(--c-ink-3);margin-bottom:4px;}
.feature-side dd{margin:0 0 16px;font-size:15px;color:var(--c-ink);}
.feature-side dd:last-child{margin-bottom:0;}

/* ---------- demo steps ---------- */
.steps{display:flex;align-items:flex-start;gap:0;margin-bottom:56px;position:relative;}
.step{flex:1;position:relative;padding-right:20px;}
.step:last-child{padding-right:0;}
.step__line{position:absolute;top:15px;left:32px;right:0;height:1px;background:var(--c-line-strong);}
.step:last-child .step__line{display:none;}
.step__dot{position:relative;z-index:2;width:32px;height:32px;border-radius:50%;background:var(--c-primary-050);border:1px solid var(--c-primary-100);color:var(--c-primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.step.is-current .step__dot{background:#fff;border:2px solid var(--c-primary);color:var(--c-primary-deep);box-shadow:0 0 0 4px rgba(27,94,168,.10);}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-ink-2);margin:0;}
.demo-shots{display:grid;grid-template-columns:1fr;gap:24px;}
.shot{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-rest);}
.shot img{width:100%;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line);}
.shot--wide img{aspect-ratio:16/10;}
.shot--tall img{aspect-ratio:4/3;}
.shot figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:12px;}

/* ---------- proof ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-bottom:48px;border-bottom:1px solid var(--c-line);margin-bottom:48px;}
.stat__num{font-size:40px;font-weight:700;color:var(--c-primary-deep);line-height:1.1;font-variant-numeric:tabular-nums;}
.stat__label{font-size:13px;color:var(--c-ink-3);margin-top:8px;}
.quote-card{background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh-rest);height:100%;transition:transform 180ms ease,box-shadow 180ms ease;}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.quote-card p{font-size:15px;color:var(--c-ink-2);margin-bottom:18px;}
.quote-card .who{font-size:14px;font-weight:600;color:var(--c-ink);}
.quote-card .who span{display:block;font-size:13px;font-weight:400;color:var(--c-ink-3);margin-top:2px;}

/* ---------- pricing ---------- */
.plan{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px 24px;height:100%;position:relative;display:flex;flex-direction:column;box-shadow:var(--sh-rest);transition:transform 180ms ease,box-shadow 180ms ease;}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.plan.is-recommended{border-color:var(--c-primary);}
.plan__tag{position:absolute;top:-12px;right:20px;background:var(--c-primary);color:#fff;font-size:12px;font-weight:500;padding:4px 12px;border-radius:var(--r-pill);}
.plan h3{margin-bottom:8px;}
.plan__note{font-size:14px;color:var(--c-ink-2);margin-bottom:20px;}
.plan ul{margin-bottom:26px;}
.plan li{font-size:14.5px;color:var(--c-ink-2);padding-left:24px;position:relative;margin-bottom:12px;line-height:1.7;}
.plan li::before{content:"";position:absolute;left:2px;top:9px;width:12px;height:7px;border-left:1.5px solid var(--c-accent);border-bottom:1.5px solid var(--c-accent);transform:rotate(-45deg);}
.plan .btn{margin-top:auto;}

/* ---------- accordion / faq ---------- */
.faq-accordion{border-top:1px solid var(--c-line);margin:0;list-style:none;background:transparent;}
.faq-accordion .accordion-item{border-bottom:1px solid var(--c-line);background:transparent;transition:box-shadow 200ms ease;}
.faq-accordion .accordion-item.is-active{box-shadow:inset 3px 0 0 var(--c-primary);}
.faq-accordion .accordion-title{display:block;padding:22px 46px 22px 20px;font-size:17px;font-weight:600;color:var(--c-ink);border:0;background:transparent;position:relative;text-decoration:none;}
.faq-accordion .accordion-title::after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;border-right:1.5px solid var(--c-ink-3);border-bottom:1.5px solid var(--c-ink-3);transform:translateY(-70%) rotate(45deg);transition:transform 200ms ease;}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary-deep);}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--c-primary);}
.faq-accordion .accordion-content{padding:0 40px 26px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);border:0;background:transparent;max-width:760px;}

/* ---------- news ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.news-head p{color:var(--c-ink-2);font-size:15px;margin:10px 0 0;}
.news-lead{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-rest);transition:transform 180ms ease,box-shadow 180ms ease;text-decoration:none;height:100%;}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);text-decoration:none;}
.news-lead img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-lead__body{padding:22px;}
.news-lead__body h3{font-size:19px;margin-bottom:10px;transition:color 160ms ease;}
.news-lead:hover h3{color:var(--c-primary);}
.news-lead__body p{font-size:14.5px;color:var(--c-ink-2);margin-bottom:16px;}
.news-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--c-line);text-decoration:none;}
.news-row:first-child{padding-top:0;}
.news-row:last-child{border-bottom:0;}
.news-row:hover{text-decoration:none;}
.news-row img{width:96px;height:72px;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line);flex:0 0 auto;}
.news-row h3{font-size:17px;margin-bottom:6px;transition:color 160ms ease;}
.news-row:hover h3{color:var(--c-primary);}
.news-row p{font-size:13.5px;color:var(--c-ink-2);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3);}
.badge{display:inline-block;font-size:12px;font-weight:500;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-primary-050);color:var(--c-primary);line-height:1.4;}
.news-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:220px;gap:14px;border:1px dashed var(--c-line-strong);border-radius:var(--r-card);background:var(--c-surface);color:var(--c-ink-3);text-align:center;padding:32px;}
.news-empty svg{width:28px;height:28px;color:var(--c-primary-100);}

/* ---------- form ---------- */
.contact-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-rest);}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-ink);margin-bottom:8px;}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:15px;color:var(--c-ink);background:#fff;border:1px solid var(--c-line-strong);border-radius:var(--r-btn);padding:11px 14px;min-height:44px;transition:border-color 160ms ease,box-shadow 160ms ease;}
.field textarea{min-height:120px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,94,168,.14);outline:none;}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-3) 50%),linear-gradient(135deg,var(--c-ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px;}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:14px;}
.contact-aside{background:var(--c-primary-050);border:1px solid var(--c-primary-100);border-radius:var(--r-card);padding:28px;}
.contact-aside h3{margin-bottom:14px;}
.contact-aside li{font-size:14.5px;color:var(--c-ink-2);padding-left:20px;position:relative;margin-bottom:12px;line-height:1.75;}
.contact-aside li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-primary);}

/* ---------- cta strip ---------- */
.cta-strip{background:var(--c-primary-050);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0;}
.cta-strip__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-strip h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:6px;}
.cta-strip p{color:var(--c-ink-2);font-size:15px;margin:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-surface-alt);border-top:1px solid var(--c-line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
.footer-col h4{font-size:13px;font-weight:600;color:var(--c-primary-deep);letter-spacing:.06em;margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--c-ink-2);line-height:1.9;margin:0;}
.footer-col li{margin-bottom:8px;}
.footer-col a{font-size:14px;color:var(--c-ink-2);line-height:1.9;}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-brand__main{font-size:18px;font-weight:700;color:var(--c-primary-deep);}
.footer-brand__sub{font-size:11px;letter-spacing:.08em;color:var(--c-ink-3);margin:6px 0 14px;}
.footer-bottom{border-top:1px solid var(--c-line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:var(--c-ink-3);}

/* ---------- floating cta ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:80;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity 220ms ease,transform 220ms ease,visibility 220ms ease;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{border-radius:var(--r-pill);padding:14px 24px;box-shadow:0 10px 24px rgba(27,94,168,.22);}
.mobile-bar{display:none;}

@media (min-width:576px){
  .demo-shots{grid-template-columns:1fr 1fr;align-items:start;}
  .stats{grid-template-columns:repeat(4,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (min-width:768px){
  .feature-row{grid-template-columns:7fr 5fr;gap:48px;}
  .feature-row:nth-child(even){grid-template-columns:5fr 7fr;}
  .feature-row:nth-child(even) .feature-body{order:2;}
  .feature-row:nth-child(even) .feature-side{order:1;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
@media (min-width:992px){
  .hero-copy{padding-right:40px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .main-nav{display:none;}
  .nav-toggle{display:block;}
  .header-cta{display:none;}
  .nav-drawer{display:block;position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;background:#fff;border-left:1px solid var(--c-line);box-shadow:-8px 0 28px rgba(22,32,46,.08);transform:translateX(100%);transition:transform 240ms ease;z-index:90;padding:28px 24px;overflow-y:auto;}
  .nav-drawer.is-open{transform:translateX(0);}
  .nav-drawer a{display:block;font-size:16px;color:var(--c-ink-2);padding:15px 0;border-bottom:1px solid var(--c-line);text-decoration:none;min-height:48px;}
  .nav-drawer a.is-active{color:var(--c-primary);font-weight:600;}
  .nav-drawer .btn{margin-top:24px;text-align:center;border-bottom:0;color:#fff;display:flex;}
  .drawer-close{position:absolute;top:18px;right:18px;width:40px;height:40px;border:1px solid var(--c-line);border-radius:50%;background:#fff;color:var(--c-ink-2);font-size:18px;line-height:1;cursor:pointer;}
  .drawer-mask{position:fixed;inset:0;background:rgba(22,32,46,.28);opacity:0;visibility:hidden;transition:opacity 240ms ease,visibility 240ms ease;z-index:85;}
  .drawer-mask.is-open{opacity:1;visibility:visible;}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  body{font-size:16px;}
  .hero-inner{min-height:auto;padding:48px 0 56px;}
  .hero-media{margin-top:32px;}
  .hero-media img{aspect-ratio:4/3;}
  .steps{flex-direction:column;gap:24px;}
  .step{padding-right:0;display:flex;gap:16px;align-items:flex-start;}
  .step__line{display:none;}
  .step__dot{margin-bottom:0;flex:0 0 auto;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .contact-card{padding:22px;}
  .cta-strip__inner{flex-direction:column;align-items:flex-start;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;align-items:center;gap:14px;position:fixed;left:0;right:0;bottom:0;height:56px;background:#fff;border-top:1px solid var(--c-line);padding:0 16px;z-index:80;}
  .mobile-bar .btn{flex:1;}
  .mobile-bar a{font-size:14px;color:var(--c-primary);white-space:nowrap;}
  body.has-mobile-bar{padding-bottom:64px;}
}

/* roulang page: article */
:root{
  --c-primary:#1B5EA8;
  --c-primary-deep:#0E3F87;
  --c-primary-050:#EAF2FB;
  --c-primary-100:#D6E5F8;
  --c-accent:#178F7E;
  --c-warn:#C97B21;
  --c-ink:#16202E;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#8090A3;
  --c-line:#E3E9F1;
  --c-line-strong:#CFD9E6;
  --c-bg:#FBFCFE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F5F8FC;
  --r-card:12px;
  --r-img:10px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,32,46,.04),0 6px 20px rgba(22,32,46,.05);
  --sh-2:0 10px 28px rgba(27,94,168,.12);
  --tr:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary-deep);text-decoration:underline}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-primary-100);color:var(--c-primary-deep)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1280px){.container{max-width:1240px;padding:0 32px}}
@media(max-width:767px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,252,254,.94);border-bottom:1px solid transparent;transition:background var(--tr),border-color var(--tr),box-shadow var(--tr)}
.site-header.is-scrolled{background:var(--c-surface);border-bottom-color:var(--c-line);box-shadow:0 1px 2px rgba(22,32,46,.03)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:flex;flex-direction:column;gap:1px;text-decoration:none!important;flex:0 0 auto}
.brand__main{font-size:19px;font-weight:700;line-height:1.25;color:var(--c-primary-deep);letter-spacing:.01em}
.brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;display:inline-block;font-size:15px;color:var(--c-ink-2);padding:6px 0;text-decoration:none;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;background:var(--c-primary);transform:translateX(-50%);transition:width 160ms ease}
.main-nav a:hover{color:var(--c-primary);text-decoration:none}
.main-nav a:hover::after{width:60%}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{width:60%}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-toggle{display:none;position:relative;width:44px;height:44px;flex:0 0 auto}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--tr),opacity var(--tr)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-mask{position:fixed;inset:0;background:rgba(22,32,46,.34);opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:var(--c-surface);border-left:1px solid var(--c-line);transform:translateX(100%);transition:transform 220ms ease;z-index:80;padding:28px 24px 32px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer__title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:8px}
.mobile-drawer a{display:flex;align-items:center;min-height:48px;font-size:16px;color:var(--c-ink);border-bottom:1px solid var(--c-line);text-decoration:none}
.mobile-drawer a:hover{color:var(--c-primary);text-decoration:none}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600}
.mobile-drawer .btn{margin-top:20px;border-bottom:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;min-height:44px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.2;text-decoration:none!important;transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr),transform var(--tr)}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-deep);color:#fff;box-shadow:var(--sh-2);text-decoration:none}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:var(--c-surface);border-color:var(--c-line-strong);color:var(--c-primary)}
.btn--ghost:hover{background:var(--c-primary-050);border-color:var(--c-primary-100);color:var(--c-primary-deep)}
.btn--text{background:none;border:0;min-height:auto;padding:4px 0;color:var(--c-primary);font-weight:600}
.btn--text:hover{color:var(--c-primary-deep);text-decoration:underline}
.btn--text .btn__arrow{transition:transform var(--tr)}
.btn--text:hover .btn__arrow{transform:translateX(3px)}
.btn--sm{padding:9px 18px;min-height:38px;font-size:14px}
.btn--block{width:100%}

/* ---------- 页面主体 ---------- */
.page{padding:28px 0 88px}
.breadcrumb{padding-top:4px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.6;color:var(--c-ink-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-line-strong)}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .is-current{color:#4A5A6E}

.article-head{margin-top:22px;max-width:860px}
.article-head h1{font-size:clamp(28px,3.6vw,40px);line-height:1.28;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:13px;color:var(--c-ink-3)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--c-primary)}
.article-divider{height:1px;background:var(--c-line);margin-top:22px}

.article-hero{margin-top:28px;border-radius:var(--r-card);overflow:hidden;height:360px;background:var(--c-primary-050);border:1px solid var(--c-line)}
.article-hero img{width:100%;height:100%;object-fit:cover}
@media(max-width:991px){.article-hero{height:300px}}
@media(max-width:575px){.article-hero{height:210px;border-radius:var(--r-img)}}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;margin-top:40px;align-items:start}
@media(max-width:1199px){.article-layout{grid-template-columns:1fr;gap:40px}}

/* ---------- 正文阅读区 ---------- */
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:var(--c-ink);text-align:left;word-wrap:break-word}
.article-body>*+*{margin-top:1.5em}
.article-body p{margin:0}
.article-body h2{position:relative;font-size:22px;font-weight:600;line-height:1.45;margin-top:2.2em;padding-left:14px;color:var(--c-ink)}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--c-primary)}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-top:1.8em;color:var(--c-ink)}
.article-body h4{font-size:17px;font-weight:600;margin-top:1.5em;color:var(--c-ink-2)}
.article-body ul{padding-left:1.35em}
.article-body ul li{position:relative;margin:.55em 0}
.article-body ul li::before{content:"";position:absolute;left:-1.05em;top:.75em;width:6px;height:6px;border-radius:2px;background:var(--c-primary)}
.article-body ol{list-style:decimal;padding-left:1.5em}
.article-body ol li{margin:.55em 0;padding-left:4px}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{margin:0;background:var(--c-primary-050);border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;padding:20px;color:var(--c-ink-2);font-size:16px}
.article-body img{border-radius:var(--r-img);margin:1.4em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.7}
.article-body th{background:var(--c-primary-050);color:var(--c-primary-deep);font-weight:600;text-align:left}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;vertical-align:top}
.article-body tbody tr:nth-child(even){background:#F7FAFD}
@media(max-width:767px){.article-body table{display:block;overflow-x:auto;white-space:nowrap}}
.article-body code{font-family:ui-monospace,Menlo,Consolas,"Courier New",monospace;font-size:.92em;background:#F2F5FA;border:1px solid var(--c-line);border-radius:4px;padding:2px 6px;color:var(--c-primary-deep)}
.article-body pre{background:#F2F5FA;border:1px solid var(--c-line);border-radius:10px;padding:18px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:none;border:0;padding:0}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-deep)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- 标签与空态 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--c-line)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;line-height:1.6;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-primary-050);color:var(--c-primary);border:1px solid var(--c-primary-100)}
.badge--accent{background:rgba(23,143,126,.09);color:var(--c-accent);border-color:rgba(23,143,126,.22)}
.empty-state{border:1px dashed var(--c-line-strong);background:var(--c-surface);border-radius:var(--r-card);padding:64px 24px;text-align:center;max-width:780px}
.empty-state i{font-size:28px;color:var(--c-primary);display:block;margin-bottom:16px}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--c-ink-2);line-height:1.75;margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--c-line)}
.related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.related__head h2{font-size:22px;font-weight:700;color:var(--c-primary-deep)}
.related__head p{font-size:14px;color:var(--c-ink-3);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media(max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:575px){.related-grid{grid-template-columns:1fr}}
.rel-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);text-decoration:none!important}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100);text-decoration:none}
.rel-card__media{aspect-ratio:16/10;background:var(--c-primary-050);overflow:hidden}
.rel-card__media img{width:100%;height:100%;object-fit:cover}
.rel-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card__body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);transition:color var(--tr)}
.rel-card:hover h3{color:var(--c-primary)}
.rel-card__body p{font-size:14px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-ink-3)}

/* ---------- 侧栏 ---------- */
.side-panel{position:sticky;top:98px;display:flex;flex-direction:column;gap:20px}
@media(max-width:1199px){.side-panel{position:static}}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:15px;font-weight:600;color:var(--c-primary-deep);margin-bottom:12px}
.side-list li a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px solid var(--c-line);font-size:14px;line-height:1.6;color:var(--c-ink-2);text-decoration:none}
.side-list li:last-child a{border-bottom:0;padding-bottom:0}
.side-list li a:hover{color:var(--c-primary);text-decoration:none}
.side-list li a i{font-size:12px;color:var(--c-ink-3)}
.side-card--cta{background:var(--c-primary-050);border-color:var(--c-primary-100)}
.side-card--cta p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin:8px 0 16px}
.side-notes{font-size:13px;line-height:1.8;color:var(--c-ink-3);margin-top:12px;padding-top:12px;border-top:1px solid var(--c-primary-100)}

/* ---------- 页尾 CTA 条 ---------- */
.cta-band{background:var(--c-primary-050);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--c-primary-deep);line-height:1.4}
.cta-band p{font-size:15px;color:var(--c-ink-2);margin-top:8px}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:50;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity var(--tr),visibility var(--tr),transform var(--tr)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta .btn{border-radius:var(--r-pill);box-shadow:0 8px 24px rgba(27,94,168,.22);padding:14px 26px}
.mobile-bar{display:none}
@media(max-width:767px){
  .float-cta{display:none}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:55;height:56px;align-items:center;gap:16px;padding:0 16px;background:var(--c-surface);border-top:1px solid var(--c-line)}
  .mobile-bar .btn{flex:1 1 auto}
  body{padding-bottom:64px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-surface-alt);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-brand__main{font-size:18px;font-weight:700;color:var(--c-primary-deep);line-height:1.4}
.footer-brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3);margin-top:4px}
.footer-col p{font-size:14px;line-height:1.85;color:var(--c-ink-2);margin-top:14px;max-width:360px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--c-primary-deep);margin-bottom:14px}
.footer-col ul li{line-height:1.9}
.footer-col ul a{font-size:14px;color:var(--c-ink-2);text-decoration:none}
.footer-col ul a:hover{color:var(--c-primary);text-decoration:underline}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-3)}
.footer-bottom a{color:var(--c-ink-3)}
.footer-bottom a:hover{color:var(--c-primary)}

@media(max-width:991px){
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .nav-toggle{display:block}
  .header-inner{min-height:66px;gap:16px}
}
@media(max-width:575px){
  .brand__main{font-size:17px}
  .brand__sub{font-size:10px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B5EA8;
  --c-primary-deep:#0E3F87;
  --c-primary-050:#EAF2FB;
  --c-primary-100:#D6E5F8;
  --c-accent:#178F7E;
  --c-warn:#C97B21;
  --c-ink:#16202E;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#8090A3;
  --c-line:#E3E9F1;
  --c-line-strong:#CFD9E6;
  --c-bg:#FBFCFE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F5F8FC;
  --r-card:12px;
  --r-img:10px;
  --r-btn:8px;
  --r-input:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,32,46,.04),0 6px 20px rgba(22,32,46,.05);
  --sh-2:0 10px 28px rgba(27,94,168,.12);
  --tr:180ms ease;
}

*,*::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","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3;letter-spacing:.01em}
h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25}
h2{font-size:clamp(23px,3vw,32px)}
h3{font-size:20px;line-height:1.4}
h4{font-size:17px;font-weight:600}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary-deep);text-decoration:underline}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1240px;padding:0 32px}}
@media (max-width:575px){.container{padding:0 16px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,252,254,.92);
  border-bottom:1px solid transparent;
  transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 1px 2px rgba(22,32,46,.04)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px;position:relative}
.brand{display:flex;flex-direction:column;gap:3px;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand__main{font-size:19px;font-weight:700;color:var(--c-primary-deep);line-height:1.2;letter-spacing:.01em}
.brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3);line-height:1.2}

.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:14.5px;color:var(--c-ink-2);padding:8px 0;transition:color var(--tr)}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:translateX(-50%);
  transition:width var(--tr);
}
.main-nav a:hover{color:var(--c-primary);text-decoration:none}
.main-nav a:hover::after{width:60%}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{width:60%}

.nav-toggle{
  display:none;position:relative;width:44px;height:44px;padding:0;
  border:0;background:transparent;cursor:pointer;flex-shrink:0;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;
  background:var(--c-ink);transition:transform var(--tr),top var(--tr),opacity var(--tr);
}
.nav-toggle span:nth-child(1){top:17px}
.nav-toggle span:nth-child(2){top:26px}
.nav-toggle.is-open span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){top:21px;transform:rotate(-45deg)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:13px 24px;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;text-decoration:none;box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-deep);border-color:var(--c-primary-100);text-decoration:none}
.btn-ghost:active{transform:translateY(1px)}
.btn-quiet{background:transparent;color:var(--c-primary);padding:10px 0;border:0;font-weight:600}
.btn-quiet .arrow{transition:transform var(--tr)}
.btn-quiet:hover{color:var(--c-primary-deep);text-decoration:none}
.btn-quiet:hover .arrow{transform:translateX(3px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ============ Badge ============ */
.badge{
  display:inline-block;font-size:12px;font-weight:500;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-050);color:var(--c-primary);border:1px solid var(--c-primary-100);
}

/* ============ Hero ============ */
.hero-cat{
  padding:26px 0 64px;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{font-size:13px;color:var(--c-ink-3);margin-bottom:26px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-line-strong)}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumb li[aria-current] span,.breadcrumb li[aria-current]{color:#4A5A6E}

.hero-cat__grid{align-items:center}
.hero-cat__text h1{margin:16px 0 14px;max-width:16em}
.hero-cat__lead{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:560px;margin-bottom:26px}
.hero-cat__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap}
.hero-facts li{
  font-size:13.5px;color:var(--c-ink-2);
  padding:0 18px;border-left:1px solid var(--c-line-strong);line-height:1.6;
}
.hero-facts li:first-child{padding-left:0;border-left:0}

.hero-cat__media{
  position:relative;height:340px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-primary-050);
}
.hero-cat__media img{width:100%;height:100%;object-fit:cover}
.media-badge{
  position:absolute;right:14px;bottom:14px;
  background:rgba(255,255,255,.95);color:var(--c-primary-deep);
  font-size:12px;font-weight:600;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--c-primary-100);
}

/* ============ Section / layout ============ */
.section{padding:72px 0 88px}
.sidebar-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}

.block+.block{margin-top:56px;padding-top:56px;border-top:1px solid var(--c-line)}
.block__head{margin-bottom:26px}
.block h2{font-size:clamp(21px,2.4vw,26px)}
.block__desc{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin-top:10px;max-width:640px}

/* ============ Steps ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr)}
.steps li{position:relative;padding:24px 16px 0 0;border-top:2px solid var(--c-primary-100)}
.steps li:last-child{padding-right:0}
.steps li::before{
  content:"";position:absolute;left:0;top:-6px;width:10px;height:10px;
  border-radius:50%;background:var(--c-primary);
}
.step-no{display:block;font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);margin-bottom:8px}
.steps h3{font-size:15.5px;font-weight:600;margin-bottom:8px}
.steps p{font-size:13.5px;line-height:1.75;color:var(--c-ink-2);margin:0}

/* ============ Point cards ============ */
.point-row{margin-bottom:20px}
.point-row:last-child{margin-bottom:0}
.point-card{
  height:100%;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;
  transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.point-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-100)}
.point-card h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.point-card p{font-size:14.5px;line-height:1.75;color:var(--c-ink-2);margin:0}
.icon{width:24px;height:24px;display:block;color:var(--c-primary)}

/* ============ Table ============ */
.table-wrap{
  overflow-x:auto;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  -webkit-overflow-scrolling:touch;
}
table.spec{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px}
table.spec th{
  background:var(--c-primary-050);color:var(--c-primary-deep);font-weight:600;font-size:13.5px;
  text-align:left;padding:15px 18px;border-bottom:1px solid var(--c-line-strong);white-space:nowrap;
}
table.spec td{padding:15px 18px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);line-height:1.7}
table.spec tbody tr:nth-child(even){background:#F7FAFD}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec td:first-child{color:var(--c-ink);font-weight:600}
.table-note{font-size:13px;color:var(--c-ink-3);margin-top:12px}

/* ============ FAQ ============ */
.faq-accordion,.faq-accordion .accordion-item{border:0;background:transparent;margin:0}
.faq-accordion{border-top:1px solid var(--c-line)}
.faq-accordion .accordion-item{border-bottom:1px solid var(--c-line)}
.faq-accordion .accordion-title{
  position:relative;display:block;padding:20px 48px 20px 18px;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;
  background:transparent;border:0;transition:color var(--tr);
}
.faq-accordion .accordion-title:hover{color:var(--c-primary);text-decoration:none}
.faq-accordion .accordion-title::before{
  content:"";position:absolute;left:0;right:auto;top:14px;bottom:14px;width:3px;
  background:var(--c-primary);border-radius:2px;opacity:0;
  transition:opacity 200ms ease;transform:none;font-size:0;
}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary-deep)}
.faq-accordion .accordion-item.is-active .accordion-title::before{opacity:1}
.faq-accordion .accordion-title::after{
  content:"";position:absolute;right:16px;top:50%;width:9px;height:9px;
  border-right:1.5px solid var(--c-ink-3);border-bottom:1.5px solid var(--c-ink-3);
  transform:translateY(-70%) rotate(45deg);
  transition:transform 200ms ease,border-color var(--tr);
}
.faq-accordion .accordion-item.is-active .accordion-title::after{
  transform:translateY(-30%) rotate(225deg);border-color:var(--c-primary);
}
.faq-accordion .accordion-content{
  padding:0 18px 22px;border:0;background:transparent;
  font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:720px;
}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* ============ Sidebar cards ============ */
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:600;color:var(--c-primary-deep);margin-bottom:12px;letter-spacing:.02em}
.side-list li+li{border-top:1px solid var(--c-line)}
.side-list a{
  display:block;padding:12px 0;font-size:14.5px;color:var(--c-ink-2);
  transition:color var(--tr),padding-left var(--tr);
}
.side-list a:hover{color:var(--c-primary);text-decoration:none;padding-left:5px}
.side-card--contact{background:var(--c-primary-050);border-color:var(--c-primary-100);box-shadow:none}
.side-card--contact p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:16px}
.side-card--contact .btn{width:100%}

/* ============ CTA bar ============ */
.cta-bar{
  background:var(--c-primary-050);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  padding:48px 0;
}
.cta-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-bar h2{font-size:clamp(19px,2vw,23px);line-height:1.45}
.cta-bar p{font-size:14.5px;color:var(--c-ink-2);margin-top:8px}

/* ============ Footer ============ */
.site-footer{background:var(--c-surface-alt);border-top:1px solid var(--c-line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-col h4{font-size:13px;font-weight:600;color:var(--c-primary-deep);letter-spacing:.03em;margin-bottom:14px}
.footer-col ul li{margin-bottom:2px}
.footer-col a{font-size:14px;line-height:1.9;color:var(--c-ink-2)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-brand__main{font-size:16px;font-weight:700;color:var(--c-primary-deep)}
.footer-brand__sub{font-size:11px;letter-spacing:.08em;color:var(--c-ink-3);margin:4px 0 14px}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-ink-2);max-width:360px;margin:0}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-3);
}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sidebar-inner{position:static;margin-top:40px}
  .steps{grid-template-columns:repeat(3,1fr)}
  .steps li{padding-bottom:22px}
}
@media (max-width:991px){
  .nav-toggle{display:block;margin-left:auto}
  .header-cta{display:none}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:0 14px 28px rgba(22,32,46,.07);
    padding:6px 24px 20px;opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity var(--tr),transform var(--tr),visibility var(--tr);
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none}
  .main-nav a{padding:15px 0;font-size:15px;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
  .main-nav a:last-child{border-bottom:0}
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--c-primary);font-weight:600}
  .hero-cat__media{height:280px;margin-top:32px}
  .hero-cat{padding-bottom:56px}
  .section{padding:56px 0 64px}
  .block+.block{margin-top:44px;padding-top:44px}
}
@media (max-width:767px){
  h1{font-size:clamp(26px,6.6vw,32px)}
  .hero-cat__lead{font-size:16px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .cta-bar{padding:40px 0}
  .cta-bar__inner{flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .hero-facts li{padding:0 12px;font-size:13px}
}
@media (max-width:575px){
  .steps{grid-template-columns:1fr}
  .steps li{padding-right:0}
  .hero-cat__actions .btn{width:100%}
  .hero-cat__media{height:220px}
  .point-card{padding:20px}
  .side-card{padding:20px}
  .faq-accordion .accordion-title{font-size:16px;padding:18px 44px 18px 16px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B5EA8;
  --c-primary-deep:#0E3F87;
  --c-primary-050:#EAF2FB;
  --c-primary-100:#D6E5F8;
  --c-accent:#178F7E;
  --c-warn:#C97B21;
  --c-ink:#16202E;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#8090A3;
  --c-line:#E3E9F1;
  --c-line-strong:#CFD9E6;
  --c-bg:#FBFCFE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F5F8FC;
  --radius-card:12px;
  --radius-img:10px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(22,32,46,.04),0 6px 20px rgba(22,32,46,.05);
  --shadow-2:0 10px 28px rgba(27,94,168,.12);
  --sp-section:96px;
  --cjk:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --num:Inter,"Helvetica Neue",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--cjk);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--cjk);color:var(--c-ink);margin:0;font-weight:700}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;letter-spacing:.01em}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;letter-spacing:.01em}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 1.4em;color:var(--c-ink-2)}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-deep);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-weight:600;color:var(--c-ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){
  .container{max-width:1240px;padding:0 32px}
}
@media (max-width:576px){
  .container{padding:0 16px}
}

/* ---------- Foundation 默认味道覆盖 ---------- */
body,button,input,select,textarea{font-family:var(--cjk)}
.button{border-radius:var(--radius-btn);background-color:var(--c-primary)}
.button:hover,.button:focus{background-color:var(--c-primary-deep)}
.accordion{margin:0;background:transparent}
.accordion-title{border:0}
.accordion-content{border:0;background:transparent;padding:0}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  min-height:44px;
  text-align:center;
}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn--primary:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong)}
.btn--ghost:hover{background:var(--c-primary-050);border-color:var(--c-primary-100);color:var(--c-primary-deep)}
.btn--sm{padding:10px 18px;font-size:14px;min-height:38px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow span{transition:transform .18s ease;font-family:var(--num)}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-deep)}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(251,252,254,.94);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 2px rgba(22,32,46,.03);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;flex-direction:column;gap:2px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand__main{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.005em;line-height:1.2}
.brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3);line-height:1.3}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;
  font-size:15px;
  color:var(--c-ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  transform:translateX(-50%);
  width:0;
  height:2px;
  background:var(--c-primary);
  transition:width .16s ease;
}
.main-nav a:hover{color:var(--c-primary);text-decoration:none}
.main-nav a:hover::after{width:60%}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{width:60%}
.header-cta{flex-shrink:0}
.nav-drawer-cta{display:none}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid var(--c-line);
  border-radius:var(--radius-btn);
  background:#fff;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(22,32,46,.32);
  z-index:65;
}
.nav-overlay.is-open{display:block}

@media (max-width:991px){
  .header-inner{min-height:66px}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:min(86vw,340px);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:92px 24px 32px;
    border-left:1px solid var(--c-line);
    transform:translateX(102%);
    transition:transform .26s ease;
    z-index:70;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{
    font-size:16px;
    padding:17px 0;
    border-bottom:1px solid var(--c-line);
    min-height:48px;
    display:flex;
    align-items:center;
  }
  .main-nav a::after{display:none}
  .nav-drawer-cta{
    display:inline-flex;
    margin-top:24px;
    width:100%;
  }
}

/* ---------- Hero 色带 ---------- */
.hero-band{
  background:linear-gradient(180deg,#FBFCFE 0%,#EAF2FB 100%);
  border-bottom:1px solid var(--c-line);
  padding:64px 0 72px;
  text-align:center;
}
.hero-band__inner{display:flex;flex-direction:column;align-items:center}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--c-primary);
  background:#fff;
  border:1px solid var(--c-primary-100);
  border-radius:999px;
  padding:6px 16px;
  margin-bottom:22px;
}
.hero-band h1{max-width:860px;margin:0 auto 18px}
.hero-band__lead{
  max-width:600px;
  margin:0 auto 28px;
  font-size:17px;
  color:var(--c-ink-2);
}
.hero-band__actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero-band__art{
  margin-top:52px;
  width:100%;
  max-width:1000px;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--c-line-strong);
  background:var(--c-surface);
  box-shadow:var(--shadow-1);
}
.hero-band__art img{width:100%;height:280px;object-fit:cover}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--c-line);background:#fff}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-ink-3);list-style:none}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line-strong)}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary);text-decoration:underline}
.crumb .is-current{color:#4A5A6E}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sp-section) 0}
.section--alt{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:680px;margin-bottom:44px}
.section-head h2{margin-bottom:12px}
.section-head .section-desc{font-size:16px;color:var(--c-ink-2);margin:0}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-mark{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--c-primary);
  margin-bottom:14px;
  font-family:var(--num);
}
.sec-mark::before{content:"";width:10px;height:10px;background:var(--c-primary);border-radius:2px}

/* ---------- 不对称卡片组 ---------- */
.asym-row{margin-bottom:28px}
.asym-row:last-child{margin-bottom:0}
.case-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary-100)}
.case-card__media{overflow:hidden;background:var(--c-primary-050)}
.case-card__media img{width:100%;height:190px;object-fit:cover;transition:transform .3s ease}
.case-card:hover .case-card__media img{transform:scale(1.02)}
.case-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-card__body h3{margin:0}
.case-card__body p{font-size:15px;line-height:1.75;margin:0}
.case-card--wide{flex-direction:row}
.case-card--wide .case-card__media{flex:0 0 44%;max-width:44%}
.case-card--wide .case-card__media img{height:100%;min-height:260px}
.tick-list{display:flex;flex-direction:column;gap:8px;margin:2px 0 4px}
.tick-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--c-primary-100);
  border:1px solid var(--c-primary);
}
.badge{
  display:inline-block;
  align-self:flex-start;
  font-size:12px;
  font-weight:500;
  color:var(--c-primary);
  background:var(--c-primary-050);
  border:1px solid var(--c-primary-100);
  border-radius:999px;
  padding:3px 12px;
  line-height:1.6;
}
@media (max-width:767px){
  .case-card--wide{flex-direction:column}
  .case-card--wide .case-card__media{flex:none;max-width:100%}
  .case-card--wide .case-card__media img{height:190px;min-height:0}
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:840px}
.timeline__item{position:relative;display:flex;gap:22px;padding-bottom:34px}
.timeline__item:last-child{padding-bottom:0}
.timeline__item::before{
  content:"";
  position:absolute;
  left:19px;
  top:44px;
  bottom:0;
  width:1px;
  background:var(--c-line-strong);
}
.timeline__item:last-child::before{display:none}
.timeline__marker{
  flex:0 0 40px;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--c-primary-100);
  background:#fff;
  color:var(--c-primary);
  font-family:var(--num);
  font-size:14px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  z-index:1;
  font-variant-numeric:tabular-nums;
}
.timeline__item:hover .timeline__marker{background:var(--c-primary-050);border-color:var(--c-primary)}
.timeline__body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:20px 24px;
  flex:1;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.timeline__body:hover{border-color:var(--c-primary-100);box-shadow:var(--shadow-1)}
.timeline__body h3{margin-bottom:8px}
.timeline__body p{font-size:15px;line-height:1.75;margin:0}

/* ---------- 数据条 ---------- */
.stat-row{border-top:1px solid var(--c-line-strong);border-bottom:1px solid var(--c-line-strong)}
.stat{padding:30px 8px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat__num{
  font-family:var(--num);
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:var(--c-primary-deep);
  font-variant-numeric:tabular-nums;
}
.stat__num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-ink-2)}
.stat__label{font-size:13px;color:var(--c-ink-3);margin-top:6px}
@media (max-width:767px){
  .stat{border-right:0;border-bottom:1px solid var(--c-line);padding:20px 4px}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .stat__num{font-size:32px}
}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:#FDF8F1;
  border:1px solid #EBD9BE;
  border-left:3px solid var(--c-warn);
  border-radius:var(--radius-card);
  padding:20px 24px;
}
.notice__icon{
  flex:0 0 24px;
  width:24px;
  height:24px;
  color:var(--c-warn);
}
.notice p{margin:0;font-size:15px;line-height:1.8;color:#5A4425}
.notice strong{color:#8A5410}

/* ---------- FAQ ---------- */
.faq-accordion{max-width:860px;border-top:1px solid var(--c-line)}
.accordion-item{border-bottom:1px solid var(--c-line)}
.accordion-title{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  background:transparent;
  border:0;
  padding:22px 0 22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  position:relative;
  transition:color .18s ease,padding-left .2s ease;
  line-height:1.6;
}
.accordion-title::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:0;
  background:var(--c-primary);
  border-radius:2px;
  transition:height .2s ease;
}
.accordion-title:hover{color:var(--c-primary)}
.accordion-item.is-open .accordion-title{color:var(--c-primary);padding-left:16px}
.accordion-item.is-open .accordion-title::before{height:22px}
.chev{
  flex:0 0 20px;
  width:20px;
  height:20px;
  color:var(--c-ink-3);
  transition:transform .2s ease;
}
.accordion-item.is-open .chev{transform:rotate(180deg);color:var(--c-primary)}
.accordion-content{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .2s ease,opacity .2s ease;
}
.accordion-item.is-open .accordion-content{opacity:1}
.accordion-content p{
  font-size:15px;
  line-height:1.8;
  max-width:720px;
  margin:0;
  padding:0 0 24px 16px;
  color:var(--c-ink-2);
}

/* ---------- 更新说明 ---------- */
.log-list{border-top:1px solid var(--c-line);max-width:900px}
.log-item{
  display:flex;
  gap:20px;
  align-items:baseline;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
}
.log-item__date{
  flex:0 0 96px;
  font-family:var(--num);
  font-size:13px;
  color:var(--c-ink-3);
  font-variant-numeric:tabular-nums;
}
.log-item__text{font-size:15px;color:var(--c-ink-2);line-height:1.75}
.log-item__text strong{color:var(--c-ink);font-weight:600}
@media (max-width:576px){
  .log-item{flex-direction:column;gap:6px}
  .log-item__date{flex:none}
}

/* ---------- 表单 ---------- */
.contact-wrap{
  display:block;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:36px;
}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-ink);margin-bottom:8px}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;
  height:44px;
  padding:10px 14px;
  font-size:15px;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--c-line-strong);
  border-radius:var(--radius-btn);
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
  -webkit-appearance:none;
}
.field textarea{height:132px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(27,94,168,.12);
}
.select-wrap{position:relative}
.select-wrap::after{
  content:"";
  position:absolute;
  right:16px;
  top:50%;
  width:8px;
  height:8px;
  border-right:1.5px solid var(--c-ink-2);
  border-bottom:1.5px solid var(--c-ink-2);
  transform:translateY(-70%) rotate(45deg);
  pointer-events:none;
}
.form-tip{font-size:13px;color:var(--c-ink-3);margin:0 0 20px}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-primary-050);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:56px 0;
}
.cta-band__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);max-width:640px;margin:0}
@media (max-width:767px){
  .cta-band{padding:44px 0}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#F5F8FC;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand__main{font-size:17px;font-weight:700;color:var(--c-primary-deep);margin-bottom:4px}
.footer-brand__sub{font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.9;color:var(--c-ink-2);margin:0;max-width:360px}
.footer-col h4{font-size:13px;font-weight:600;color:var(--c-primary-deep);margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:2px}
.footer-col li a{font-size:14px;line-height:1.9;color:var(--c-ink-2);display:inline-block;padding:2px 0}
.footer-col li a:hover{color:var(--c-primary);text-decoration:underline}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--c-ink-3);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
}

/* ---------- 响应式板块间距 ---------- */
@media (max-width:992px){
  :root{--sp-section:72px}
  .hero-band{padding:48px 0 56px}
  .hero-band__art img{height:220px}
  .contact-wrap{padding:28px}
}
@media (max-width:576px){
  :root{--sp-section:56px}
  .hero-band{padding:40px 0 48px}
  .hero-band__art img{height:180px;border-radius:var(--radius-img)}
  .hero-band__lead{font-size:16px}
  .hero-band__actions{width:100%;flex-direction:column}
  .hero-band__actions .btn{width:100%}
  .case-card__body{padding:20px}
  .timeline__body{padding:18px 20px}
  .contact-wrap{padding:20px}
  .form-actions{flex-direction:column;align-items:stretch}
  .form-actions .btn{width:100%}
  .accordion-title{font-size:16px;padding:18px 0}
  .footer-bottom{flex-direction:column;gap:6px}
}