/* roulang page: index */
:root{
  --paper:#F7F3EA;
  --paper-2:#EFE8DA;
  --card:#FFFDF8;
  --ink:#1B2A32;
  --ink-2:#5A6B73;
  --ink-3:#8C979D;
  --brand:#1D5E8C;
  --brand-deep:#14456A;
  --brand-soft:#E8F1F8;
  --accent:#E07A3F;
  --accent-soft:#FDF0E7;
  --line:#DED5C4;
  --line-soft:#EAE3D5;
  --dark:#0F2A44;
  --ok:#1F8A5B;
  --err:#D64545;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(18,42,66,.05), 0 8px 24px -12px rgba(18,42,66,.16);
  --shadow-hover:0 14px 32px -14px rgba(18,42,66,.26);
  --t:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(29,94,140,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-deep)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border-style:none;background:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.01em;font-weight:700;color:var(--ink)}
h1{font-size:clamp(30px,4.4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:18px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,94,140,.22);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--paper-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head p{max-width:640px;color:var(--ink-2);font-size:15px;margin-top:12px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--accent);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px}
.lead{color:var(--ink-2);font-size:16px;line-height:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(29,94,140,.85)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(29,94,140,.9)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--card);color:var(--brand);border-color:rgba(29,94,140,.3)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{height:auto;padding:0;color:var(--brand);font-size:15px;font-weight:600;background:none}
.btn-text::after{content:"→";display:inline-block;margin-left:6px;transition:transform var(--t)}
.btn-text:hover::after{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{background:#E4DED1;color:var(--ink-3);box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:var(--brand-soft);color:var(--brand);white-space:nowrap;
}
.chip-accent{background:var(--accent-soft);color:var(--accent)}
.chip-plain{background:transparent;color:var(--ink-2);border:1px solid var(--line)}

/* ---------- cards ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  overflow:hidden;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(29,94,140,.2)}
.card-flat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,243,234,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand:hover{color:var(--brand-deep)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;letter-spacing:0;
  border:1px solid var(--brand-deep);
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.22);
}
.brand-sub{display:block;font-size:11.5px;font-weight:400;color:var(--ink-2);letter-spacing:.16em;line-height:1.2}
.topbar-tools{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:var(--radius-sm);
  display:grid;place-items:center;color:var(--brand);
  border:1px solid var(--line);background:var(--card);
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.icon-btn:hover{background:var(--brand-soft);border-color:rgba(29,94,140,.28);color:var(--brand-deep)}
.icon-btn svg{width:19px;height:19px;display:block}
.channelbar{border-top:1px dashed var(--line)}
.channel-inner{height:48px;display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;flex:0 0 auto;
  padding:0 14px;line-height:46px;
  font-size:15px;color:var(--ink-2);
  transition:color var(--t);
}
.channel-inner a:hover{color:var(--brand)}
.channel-inner a.active{color:var(--brand);font-weight:600}
.channel-inner a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  border-radius:2px;background:var(--brand);
}
.menu-btn{display:none;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card);place-items:center}
.menu-btn span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;margin:2.5px auto;transition:transform var(--t),opacity var(--t)}
.drawer-mask{position:fixed;inset:0;background:rgba(15,42,68,.42);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:12px;right:12px;bottom:12px;width:min(320px,86vw);
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-hover);z-index:100;padding:22px 20px;
  transform:translateX(112%);transition:transform var(--t);
  display:flex;flex-direction:column;gap:14px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer h4{font-size:15px}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:4px}
.drawer-nav a{padding:12px 14px;border-radius:var(--radius-sm);color:var(--ink);font-size:15px;border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-soft);color:var(--brand);border-color:rgba(29,94,140,.18)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(115deg,rgba(247,243,234,.96) 0%,rgba(247,243,234,.9) 46%,rgba(247,243,234,.68) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:78px 0 84px;min-height:520px}
.hero h1{margin:16px 0 18px}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.9;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;margin-top:38px;padding-top:22px;border-top:1px dashed var(--line)}
.hero-stats .stat{flex:1;padding-right:20px;margin-right:20px;border-right:1px solid var(--line)}
.hero-stats .stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat-num{display:block;font-size:28px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-label{display:block;font-size:13.5px;color:var(--ink-2);margin-top:4px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:5/4;object-fit:cover;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.float-card{
  position:absolute;left:-14px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:12px 16px;max-width:280px;
  box-shadow:var(--shadow-hover);
}
.float-card .dot{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:700;
}
.float-card strong{display:block;font-size:14px;line-height:1.5}
.float-card span{display:block;font-size:12.5px;color:var(--ink-2);line-height:1.5}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:center}
.about-media{position:relative}
.about-media::before{
  content:"";position:absolute;left:-18px;top:-18px;width:132px;height:132px;
  background:var(--accent-soft);border-radius:16px;
}
.about-media::after{
  content:"";position:absolute;right:-16px;bottom:-16px;width:96px;height:96px;
  border:1px dashed rgba(29,94,140,.35);border-radius:16px;
}
.about-media img{
  position:relative;z-index:1;
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.about-text p+p{margin-top:18px}
.feature-list{margin-top:28px;display:flex;flex-direction:column;gap:16px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list .fi{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.feature-list strong{display:block;font-size:15.5px;margin-bottom:2px}
.feature-list span{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;margin-top:8px}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:30px;
  border-top:1px dashed rgba(29,94,140,.35);
}
.step{position:relative;padding-top:0}
.step-no{
  position:relative;z-index:1;
  display:inline-block;padding-right:14px;
  background:var(--paper);
  font-family:"Inter","Noto Sans SC",system-ui,sans-serif;
  font-size:44px;font-weight:700;line-height:1;
  letter-spacing:.02em;
  color:rgba(29,94,140,.45);
  -webkit-text-stroke:1.5px rgba(29,94,140,.65);
}
@supports not (-webkit-text-stroke:1px #000){
  .step-no{color:rgba(29,94,140,.5)}
}
.section-alt .step-no{background:var(--paper-2)}
.step h3{margin:16px 0 8px;font-size:18px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- featured ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.feature-side{display:grid;gap:24px}
.feature-main{display:grid;grid-template-columns:1.05fr 1fr;padding:0}
.feature-main .fm-media{height:100%;min-height:260px}
.feature-main .fm-media img{width:100%;height:100%;object-fit:cover}
.feature-main .fm-body{padding:30px 30px 28px;display:flex;flex-direction:column;gap:12px}
.feature-main h3{font-size:22px;line-height:1.45}
.feature-side .card{display:grid;grid-template-columns:132px 1fr;padding:0}
.feature-side .card img{width:100%;height:100%;min-height:130px;object-fit:cover}
.feature-side .fc-body{padding:18px;display:flex;flex-direction:column;gap:8px}
.feature-side h3{font-size:17px;line-height:1.5}
.card-desc{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{display:flex;flex-direction:column;padding:0}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mini-card .mc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-card h3{font-size:17px;line-height:1.5}
.mc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}

/* ---------- posts (cms) ---------- */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.post-card{display:grid;grid-template-columns:190px 1fr;gap:18px;padding:16px;align-items:stretch}
.post-thumb{border-radius:12px;overflow:hidden;background:var(--line-soft)}
.post-thumb img{width:100%;height:100%;min-height:132px;object-fit:cover}
.post-main{display:flex;flex-direction:column;gap:9px;min-width:0}
.post-title{font-size:17px;line-height:1.5}
.post-desc{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:13px}
.post-time{color:var(--accent);font-weight:600}
.post-more{color:var(--brand);font-weight:600}
.empty-state{
  grid-column:1/-1;
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius);
  color:var(--ink-2);font-size:15px;text-align:center;padding:32px;
}
.empty-state .es-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:20px;
}

/* ---------- trust ---------- */
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.trust-stats{display:grid;grid-template-columns:1fr 1fr;gap:28px 24px}
.trust-stats .num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.2}
.trust-stats .lab{font-size:14px;color:var(--ink-2);margin-top:4px}
.quote-card{position:relative;padding:34px 30px 28px}
.quote-card::before{
  content:"“";position:absolute;left:22px;top:2px;
  font-size:64px;line-height:1;color:rgba(29,94,140,.18);font-family:Georgia,serif;
}
.quote-card p{font-size:16px;line-height:1.9;margin-top:18px;color:var(--ink)}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;border-top:1px dashed var(--line)}
.avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;background:var(--line-soft);flex:0 0 44px}
.avatar img{width:100%;height:100%;object-fit:cover}
.quote-foot strong{display:block;font-size:14.5px}
.quote-foot span{display:block;font-size:13px;color:var(--ink-2)}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:56px}
.logo-item{
  height:76px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:12px;background:var(--card);
  font-size:14px;color:var(--ink-2);font-weight:600;letter-spacing:.04em;
  filter:grayscale(1);opacity:.62;
  transition:filter var(--t),opacity var(--t),transform var(--t),border-color var(--t);
}
.logo-item:hover{filter:grayscale(0);opacity:1;transform:translateY(-3px);border-color:rgba(29,94,140,.3)}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:0 22px;margin-bottom:14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(29,94,140,.3);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-body{padding:0 0 20px;font-size:15px;color:var(--ink-2);line-height:1.9;border-top:1px dashed var(--line);padding-top:16px}

/* ---------- cta ---------- */
.cta-section{
  background:linear-gradient(180deg,rgba(29,94,140,.07),rgba(29,94,140,.03));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:78px 0;
}
.cta-card{
  max-width:820px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:44px 40px;text-align:center;
}
.cta-card h2{margin-bottom:12px}
.cta-card p{color:var(--ink-2);font-size:15px;max-width:560px;margin:0 auto}
.cta-form{display:flex;gap:12px;max-width:520px;margin:26px auto 0}
.field{
  flex:1;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:15px;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t);
}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,94,140,.16)}
.field.error{border-color:var(--err)}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:var(--err)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C7D3DE;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700}
.footer-brand .brand-mark{background:#17456B;border-color:#1D5E8C}
.footer-about{margin-top:16px;font-size:14px;line-height:1.9;color:#9FB3C6;max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:#9FB3C6}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8199AE;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.22);color:#C7D3DE;
  display:grid;place-items:center;font-size:13px;
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.footer-social a:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .feature-main{grid-template-columns:1fr}
  .feature-main .fm-media{min-height:220px}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:56px 0 64px;min-height:0}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/10}
  .float-card{left:12px;bottom:12px}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .steps{grid-template-columns:1fr 1fr;gap:32px 24px}
  .steps::before{display:none}
  .feature-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .topbar{height:60px}
  .menu-btn{display:grid}
  .topbar-tools .btn{display:none}
  .channel-inner{gap:2px}
  .channel-inner a{padding:0 12px;font-size:14.5px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1}
  .hero-stats{flex-direction:column;gap:14px}
  .hero-stats .stat{border-right:0;margin:0;padding:0;border-bottom:1px dashed var(--line);padding-bottom:12px}
  .hero-stats .stat:last-child{border-bottom:0;padding-bottom:0}
  .post-grid{grid-template-columns:1fr}
  .post-card{grid-template-columns:1fr}
  .post-thumb img{min-height:170px}
  .grid-3{grid-template-columns:1fr}
  .feature-side .card{grid-template-columns:1fr}
  .feature-side .card img{min-height:150px}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .cta-card{padding:32px 20px}
  .cta-form{flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  h1{font-size:28px}
}
@media (max-width:479px){
  .about-media::before,.about-media::after{display:none}
  .trust-stats{grid-template-columns:1fr 1fr}
  .float-card{max-width:230px;padding:10px 12px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1D5E8C;
  --c-primary-dark:#14456A;
  --c-primary-light:#E8F1F8;
  --c-accent:#E07A3F;
  --c-accent-light:#FDF0E7;
  --bg:#F5F8FB;
  --bg-alt:#EEF4F9;
  --card:#FFFFFF;
  --border:#E2EAF2;
  --ink:#0F2A44;
  --text:#1F2A37;
  --text-2:#5B6B7C;
  --text-3:#A9B4C0;
  --ok:#1F8A5B;
  --err:#D64545;
  --warn:#C98A16;
  --r-card:16px;
  --r-lg:20px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(18,42,66,.05),0 8px 24px -12px rgba(18,42,66,.16);
  --sh-2:0 14px 32px -14px rgba(18,42,66,.26);
  --t:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB",system-ui,"Segoe UI",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.88;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(29,94,140,.22);border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(29,94,140,.3)}
.btn-ghost:hover{background:var(--c-primary-light);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{background:#E8EDF2;color:var(--text-3);border-color:transparent;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600}
.link-more svg{width:15px;height:15px;transition:transform var(--t)}
.link-more:hover svg{transform:translateX(3px)}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;
  font-size:18px;font-weight:700;letter-spacing:.04em;
}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--text-2);letter-spacing:.08em;margin-top:2px}
.topbar-tools{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  display:grid;place-items:center;cursor:pointer;
  transition:color var(--t),border-color var(--t),background var(--t);
}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(29,94,140,.3);background:var(--c-primary-light)}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-btn span{width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--t),opacity var(--t)}
.channelbar{border-top:1px solid var(--border);background:#fff}
.channel-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;color:var(--text-2);white-space:nowrap;transition:color var(--t);
}
.channel-inner a:hover{color:var(--c-primary)}
.channel-inner a.active{color:var(--c-primary);font-weight:600}
.channel-inner a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:9px;height:2px;border-radius:2px;background:var(--c-primary);
}
.drawer,.drawer-mask{display:none}

/* ============ 页头 ============ */
.page-head{
  padding:30px 0 40px;
  border-bottom:1px solid var(--border);
  background:
    radial-gradient(rgba(29,94,140,.07) 1px,transparent 1px) 0 0/18px 18px,
    linear-gradient(180deg,#FFFFFF 0%,#EEF4F9 100%);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.breadcrumb a{color:var(--c-primary)}
.breadcrumb a:hover{text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .cur{color:var(--text-3)}
.page-title{font-size:clamp(30px,4.2vw,46px);margin-top:18px;max-width:900px}
.page-title em{font-style:normal;color:var(--c-primary)}
.page-lead{margin-top:18px;max-width:860px;font-size:16px;color:var(--text-2);line-height:1.9}
.stat-row{display:flex;flex-wrap:wrap;margin-top:30px;padding-top:22px;border-top:1px dashed var(--border)}
.stat{padding:6px 26px 6px 0;min-width:190px}
.stat + .stat{border-left:1px solid var(--border);padding-left:26px}
.stat b{display:block;font-size:22px;font-weight:700;color:var(--c-primary);line-height:1.4}
.stat span{display:block;font-size:13px;color:var(--text-2);margin-top:2px}

/* ============ 频道标签 ============ */
.chip-bar{display:flex;align-items:center;gap:10px;margin-top:28px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chip-bar::-webkit-scrollbar{display:none}
.chip-bar .label{font-size:13px;color:var(--text-3);white-space:nowrap;padding-right:2px}
.chip{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:7px 15px;border-radius:999px;font-size:13px;
  background:#fff;border:1px solid var(--border);color:var(--text-2);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.chip:hover{color:var(--c-primary);border-color:rgba(29,94,140,.32)}
.chip.active{background:var(--c-primary-light);color:var(--c-primary);border-color:rgba(29,94,140,.28);font-weight:600}
.chip.warm{background:var(--c-accent-light);color:var(--c-accent);border-color:rgba(224,122,63,.28)}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section-plain{background:#fff}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:34px}
.section-head h2{font-size:clamp(24px,3vw,34px)}
.section-head .sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:760px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ============ 列表布局 ============ */
.list-layout{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:start}
.filters{
  position:sticky;top:132px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.filters h2{font-size:15px;letter-spacing:.04em;color:var(--text)}
.filter-group + .filter-group{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border)}
.filter-group h3{font-size:14px;color:var(--text);margin-bottom:10px}
.filter-item{
  display:flex;align-items:center;gap:10px;
  padding:8px 8px;border-radius:8px;font-size:14px;color:var(--text-2);
  cursor:pointer;transition:background var(--t),color var(--t);
}
.filter-item:hover{background:var(--c-primary-light);color:var(--c-primary)}
.filter-item input{width:16px;height:16px;flex:0 0 auto;accent-color:var(--c-primary);cursor:pointer}
.filter-more{margin-top:16px;padding-top:14px;border-top:1px dashed var(--border);display:flex;flex-direction:column;gap:10px}
.filter-more a{font-size:13px;color:var(--c-primary)}
.filter-more a:hover{text-decoration:underline;text-underline-offset:3px}

.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.entry:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,94,140,.2)}
.entry-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.4,0,.2,1)}
.entry:hover .entry-media img{transform:scale(1.035)}
.entry-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.entry h3{font-size:18px;line-height:1.55}
.entry h3 a:hover{color:var(--c-primary)}
.entry-excerpt{
  margin-top:10px;font-size:14px;line-height:1.82;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.entry-time{font-size:12.5px;color:var(--c-accent);letter-spacing:.02em}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:500}
.badge-blue{background:var(--c-primary-light);color:var(--c-primary)}
.badge-warm{background:var(--c-accent-light);color:var(--c-accent)}

/* ============ 分页 ============ */
.pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:38px}
.pagination a,.pagination span{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:8px;background:#fff;
  font-size:14px;color:var(--text-2);transition:color var(--t),border-color var(--t),background var(--t);
}
.pagination a:hover{color:var(--c-primary);border-color:rgba(29,94,140,.35);background:var(--c-primary-light)}
.pagination .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.pagination .disabled{background:var(--bg-alt);color:var(--text-3);cursor:not-allowed}

/* ============ 图文交错 ============ */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.story-visual{position:relative;isolation:isolate}
.story-visual img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.story-visual::before{
  content:"";position:absolute;z-index:0;right:-18px;bottom:-18px;width:58%;height:56%;
  background:var(--c-primary-light);border-radius:var(--r-card);
}
.story-visual::after{
  content:"";position:absolute;z-index:0;left:-16px;top:-16px;width:88px;height:88px;
  border-radius:var(--r-card);background:var(--c-accent-light);
}
.story-text h2{font-size:clamp(24px,3vw,34px)}
.story-text p{margin-top:18px;color:var(--text-2)}
.feature-list{margin-top:26px}
.feature-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--border)}
.feature-list li:last-child{border-bottom:0}
.feature-ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.feature-list strong{display:block;font-size:15.5px}
.feature-list span{display:block;font-size:14px;color:var(--text-2);margin-top:2px}

/* ============ 编号流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{content:"";position:absolute;left:5%;right:5%;top:26px;border-top:1px dashed rgba(29,94,140,.34)}
.step{position:relative;background:var(--bg-alt);padding-right:12px}
.step-num{
  display:inline-block;font-size:38px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.3px var(--c-primary);
  background:var(--bg-alt);padding:2px 14px 2px 0;
}
.step h3{font-size:18px;margin-top:14px;background:var(--bg-alt);display:inline-block;padding-right:8px}
.step p{font-size:14px;color:var(--text-2);margin-top:8px;background:var(--bg-alt)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:960px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:0 22px;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(29,94,140,.3);box-shadow:var(--sh-1)}
.faq-item[open]{border-color:rgba(29,94,140,.32);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:17px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(29,94,140,.28);color:var(--c-primary);
  display:grid;place-items:center;font-size:16px;line-height:1;
}
.faq-plus::before{content:"+"}
.faq-item[open] .faq-plus::before{content:"−"}
.faq-body{
  padding:2px 0 20px;margin-top:-4px;
  font-size:15px;line-height:1.9;color:var(--text-2);
  border-top:1px dashed var(--border);padding-top:14px;
}

/* ============ CTA ============ */
.cta-band{background:var(--c-primary-light);padding:76px 0}
.cta-card{
  max-width:920px;margin:0 auto;text-align:center;
  background:#fff;border-radius:var(--r-lg);padding:44px 40px;box-shadow:var(--sh-1);
  border:1px solid rgba(29,94,140,.12);
}
.cta-card h2{font-size:clamp(24px,3vw,32px)}
.cta-card p{margin-top:16px;color:var(--text-2);max-width:660px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
.cta-note{margin-top:16px;font-size:12.5px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C7D5E2;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700}
.footer-about{margin-top:14px;font-size:14px;line-height:1.9;color:#9FB3C6;max-width:360px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px}
.footer-col li{font-size:14px;color:#9FB3C6;margin-bottom:10px;line-height:1.75}
.footer-col a{transition:color var(--t)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA5B9;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.26);
  display:grid;place-items:center;font-size:13px;color:#C7D5E2;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .list-layout{gap:26px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .list-layout{grid-template-columns:1fr}
  .filters{position:static}
  .story-grid{grid-template-columns:1fr;gap:38px}
  .story-visual::before{right:-12px;bottom:-12px}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .steps::before{display:none}
  .step{background:transparent}
  .step-num,.step h3,.step p{background:transparent}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:60px 0}
}
@media (max-width:900px){
  .menu-btn{display:inline-flex}
  .topbar{height:64px}
  .topbar-tools .btn-primary{display:none}
  .drawer-mask{position:fixed;inset:0;background:rgba(15,42,68,.42);z-index:70;display:block}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:min(84vw,320px);z-index:80;
    background:#fff;border-radius:16px 0 0 16px;padding:22px;
    display:flex;flex-direction:column;
    transform:translateX(102%);transition:transform 260ms cubic-bezier(.4,0,.2,1);
    box-shadow:-12px 0 40px rgba(18,42,66,.2);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text)}
  .drawer-close{
    margin-left:auto;width:38px;height:38px;border-radius:50%;
    border:1px solid var(--border);background:#fff;color:var(--text-2);
    font-size:19px;line-height:1;cursor:pointer;
  }
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
  .drawer-nav a{padding:14px 12px;border-radius:var(--r-sm);font-size:16px;color:var(--text-2);transition:background var(--t),color var(--t)}
  .drawer-nav a:hover{background:var(--bg-alt);color:var(--c-primary)}
  .drawer-nav a.active{background:var(--c-primary-light);color:var(--c-primary);font-weight:600}
  .drawer-cta{margin-top:auto}
  .drawer-note{font-size:12.5px;color:var(--text-3);margin-top:14px}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .page-head{padding:24px 0 32px}
  .stat-row{padding-top:18px;margin-top:22px}
  .stat{min-width:46%;padding:8px 16px 8px 0}
  .stat + .stat{padding-left:16px}
  .stat b{font-size:19px}
  .list-layout{gap:20px;margin-top:6px}
  .filters{
    display:flex;gap:10px;align-items:flex-start;
    overflow-x:auto;padding:12px;border-radius:14px;scrollbar-width:none;
  }
  .filters::-webkit-scrollbar{display:none}
  .filters h2{display:none}
  .filters .filter-group{min-width:max-content}
  .filters .filter-group + .filter-group{margin-top:0;padding-top:0;border-top:0}
  .filter-group h3{display:none}
  .filter-group ul{display:flex;gap:8px}
  .filter-item{padding:8px 13px;border:1px solid var(--border);border-radius:999px;background:#fff;font-size:13px;white-space:nowrap}
  .filter-more{display:none}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .cta-card{padding:28px 20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{margin-top:32px}
  .story-visual::after{width:64px;height:64px}
  .faq-item{padding:0 16px}
  .faq-item summary{font-size:16px}
  .steps{grid-template-columns:1fr}
}
@media (max-width:520px){
  .brand{font-size:17px}
  .brand-sub{font-size:11px}
  .page-title{font-size:30px}
  .entry-body{padding:18px 18px 20px}
  .pagination a,.pagination span{min-width:38px;height:38px;padding:0 10px}
}

/* roulang page: article */
:root{
  --c-primary:#1D5E8C;
  --c-primary-dark:#14456A;
  --c-primary-soft:#E8F1F8;
  --c-accent:#E07A3F;
  --c-accent-soft:#FDF0E7;
  --c-success:#1F8A5B;
  --c-danger:#D64545;
  --c-warn:#C98A16;
  --bg:#F5F8FB;
  --bg-alt:#EEF4F9;
  --card:#FFFFFF;
  --line:#E2EAF2;
  --line-strong:#CFDCE8;
  --ink:#1F2A37;
  --ink-2:#5B6B7C;
  --muted:#A9B4C0;
  --r-card:16px;
  --r-lg:20px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(18,42,66,.05), 0 8px 24px -12px rgba(18,42,66,.16);
  --shadow-2:0 14px 32px -14px rgba(18,42,66,.26);
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(29,94,140,.22);
  border-radius:var(--r-sm);
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(29,94,140,.18)}
[id]{scroll-margin-top:118px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary-dark);color:#fff;box-shadow:0 8px 18px -10px rgba(20,69,106,.85)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px -8px rgba(20,69,106,.8)}
.btn-ghost{background:#fff;border-color:rgba(29,94,140,.3);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:rgba(29,94,140,.55);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{height:auto;padding:0;background:none;border:none;color:var(--c-primary);font-weight:600}
.btn-text .arrow{display:inline-block;transition:transform var(--ease)}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{background:var(--muted);border-color:var(--muted);color:#fff;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.chip-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--c-primary);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:20px;font-weight:700;letter-spacing:.01em}
.brand>span:last-child{display:flex;flex-direction:column;line-height:1.25}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:700;
  box-shadow:0 6px 14px -8px rgba(20,69,106,.9);
}
.brand-sub{font-size:12px;font-weight:500;color:var(--ink-2);letter-spacing:.06em;margin-top:3px}
.brand:hover .brand-mark{background:var(--c-primary-dark)}
.brand:hover .brand-sub{color:var(--c-primary)}
.topbar-tools{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;flex:none;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:grid;place-items:center;cursor:pointer;
  transition:var(--ease);
}
.icon-btn svg{width:20px;height:20px}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(29,94,140,.4);background:var(--c-primary-soft)}
.menu-btn{
  display:none;width:44px;height:44px;flex:none;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:var(--ease);
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:var(--ease)}
.menu-btn:hover{border-color:rgba(29,94,140,.4);background:var(--c-primary-soft)}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.channelbar{border-top:1px dashed var(--line-strong);background:#fff}
.channel-inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--ink-2);white-space:nowrap;
  transition:var(--ease);
}
.channel-inner a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:calc(100% - 28px);
  border-radius:2px;background:var(--c-primary);
  transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform var(--ease);
}
.channel-inner a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.channel-inner a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft)}
.channel-inner a.active::after{transform:translateX(-50%) scaleX(1)}

/* ---------- 移动端抽屉 ---------- */
.overlay{
  position:fixed;inset:0;z-index:80;background:rgba(15,42,68,.4);
  opacity:0;visibility:hidden;transition:var(--ease);
}
.overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:90;height:100%;
  width:min(330px,88vw);padding:22px;
  background:#fff;border-radius:16px 0 0 16px;
  box-shadow:var(--shadow-2);overflow-y:auto;
  transform:translateX(105%);transition:transform var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--line-strong)}
.drawer-head .brand{font-size:17px}
.drawer-head .icon-btn{font-size:20px;line-height:1}
.drawer-links{display:grid;gap:6px;padding:18px 0}
.drawer-links a{padding:13px 14px;border-radius:12px;font-size:16px;color:var(--ink);transition:var(--ease)}
.drawer-links a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-links a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:14px;color:var(--ink-2);
}
.breadcrumb a{color:var(--ink-2);transition:var(--ease)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--muted)}
.breadcrumb .current{color:var(--muted);max-width:min(100%,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:20px 0 26px;border-bottom:1px dashed var(--line-strong)}
.article-head h1{font-size:clamp(30px,3.6vw,44px);line-height:1.28;margin:14px 0 18px;max-width:900px}
.article-lead{max-width:820px;font-size:18px;line-height:1.85;color:var(--ink-2)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:18px 0 0;font-size:14px;color:var(--ink-2)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--muted)}

/* ---------- 布局 ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start;
  padding:40px 0 0;
}
.article-main{max-width:820px;min-width:0}
.article-side{min-width:0}

.toc-toggle{
  display:none;width:100%;height:48px;margin-bottom:14px;
  align-items:center;justify-content:space-between;
  padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:15px;font-weight:600;cursor:pointer;transition:var(--ease);
}
.toc-toggle:hover{border-color:rgba(29,94,140,.4);color:var(--c-primary)}
.toc-toggle .toc-caret{color:var(--c-primary);transition:transform var(--ease)}
.toc-toggle[aria-expanded="true"] .toc-caret{transform:rotate(180deg)}

.toc{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;box-shadow:var(--shadow-1);
}
.toc h2{font-size:15px;letter-spacing:.04em;padding-bottom:12px;border-bottom:1px dashed var(--line-strong);margin-bottom:12px}
.toc ol{list-style:none;padding:0;display:grid;gap:2px}
.toc a{
  display:block;padding:8px 10px;font-size:14px;line-height:1.6;color:var(--ink-2);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;transition:var(--ease);
}
.toc a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.toc a.is-current{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);border-left-color:var(--c-primary)}
.toc .toc-sub a{padding-left:22px;font-size:13.5px}

/* ---------- 正文排版 ---------- */
.prose{font-size:16px;line-height:1.9;color:var(--ink)}
.prose>*+*{margin-top:20px}
.prose p{margin:0}
.prose h2{
  font-size:clamp(23px,2.4vw,32px);line-height:1.32;
  margin:46px 0 16px;padding-left:14px;border-left:3px solid var(--c-primary);
  scroll-margin-top:120px;
}
.prose h3{font-size:22px;margin:34px 0 12px;scroll-margin-top:120px}
.prose h2+p,.prose h3+p{margin-top:0}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--c-primary-dark);text-decoration-thickness:2px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin:8px 0}
.prose ul li::marker{color:var(--c-primary)}
.prose ol li::marker{color:var(--c-primary);font-weight:600}
.prose strong{font-weight:700;color:var(--c-primary-dark)}
.prose blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--c-primary-soft);border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;color:var(--ink);
}
.prose blockquote p+p{margin-top:12px}
.prose img{max-width:100%;height:auto;border-radius:12px;margin:26px auto}
.prose figure{margin:26px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--ink-2);margin-top:10px;line-height:1.7}
.prose table{
  width:100%;border-collapse:collapse;margin:26px 0;
  font-size:14.5px;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.prose th{background:var(--bg-alt);font-weight:600;text-align:left;color:var(--ink)}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line)}
.prose tr:last-child td{border-bottom:none}
.prose code{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.prose pre{background:#0F2A44;color:#E8F1F8;padding:18px 20px;border-radius:12px;overflow-x:auto}
.prose pre code{background:none;border:none;color:inherit;padding:0}
.prose hr{border:none;border-top:1px dashed var(--line-strong);margin:34px 0}

/* ---------- 空态 ---------- */
.empty{
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-mark{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;font-size:24px;font-weight:700;
}
.empty h2{font-size:22px;margin-bottom:10px}
.empty p{color:var(--ink-2);font-size:15px;max-width:520px;margin:0 auto}
.empty .empty-actions{margin-top:22px}

/* ---------- 标签与翻页 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.tag{
  padding:6px 13px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13px;color:var(--ink-2);transition:var(--ease);
}
.tag:hover{border-color:rgba(29,94,140,.45);color:var(--c-primary);background:var(--c-primary-soft)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);transition:var(--ease);
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(29,94,140,.24)}
.pn-label{font-size:12.5px;font-weight:600;color:var(--c-accent);letter-spacing:.04em}
.pn-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:8px;font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);
}

/* ---------- 板块与卡片 ---------- */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{position:relative;padding-left:16px;font-size:clamp(23px,2.6vw,32px)}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:26px;border-radius:3px;background:var(--c-accent);
}
.section-head .sub{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px}

.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(29,94,140,.24)}
.card-media{aspect-ratio:16/9;background:var(--bg-alt);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.4,0,.2,1)}
.card:hover .card-media img{transform:scale(1.045)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 22px}
.card-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:17.5px;font-weight:600;line-height:1.5;color:var(--ink);transition:var(--ease);
}
.card-title:hover{color:var(--c-primary)}
.card-text{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;line-height:1.8;color:var(--ink-2);
}
.card-meta{font-size:12.5px;font-weight:600;color:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:var(--ease)}
.faq details:hover{border-color:rgba(29,94,140,.3)}
.faq details[open]{box-shadow:var(--shadow-1)}
.faq summary{
  position:relative;list-style:none;cursor:pointer;
  padding:18px 54px 18px 20px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--c-primary);transition:transform var(--ease);
}
.faq details[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-primary-soft)}
.cta-card{
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:44px;box-shadow:var(--shadow-1);
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin:14px 0 14px}
.cta-text{font-size:15.5px;line-height:1.9;color:var(--ink-2)}
.cta-points{list-style:none;padding:0;display:grid;gap:10px;margin:20px 0 0}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--ink)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;
  background:var(--c-accent-soft);border:1px solid rgba(224,122,63,.5);
}
.cta-contact{margin-top:20px;font-size:13.5px;color:var(--ink-2)}

.form-grid{display:grid;gap:14px}
.field{display:block}
.field label{display:block;margin-bottom:6px;font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field textarea{
  width:100%;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;font-size:15px;color:var(--ink);transition:var(--ease);
}
.field input{height:48px;padding:0 14px}
.field textarea{height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,94,140,.18)}
.field.error input,.field.error textarea{border-color:var(--c-danger);box-shadow:0 0 0 3px rgba(214,69,69,.14)}
.err-msg{display:none;margin-top:6px;font-size:12px;color:var(--c-danger)}
.field.error .err-msg{display:block}
.form-note{margin-top:10px;font-size:12px;color:var(--ink-2)}
.form-status{display:none;margin-top:12px;padding:12px 14px;border-radius:var(--r-sm);font-size:14px;line-height:1.7}
.form-status.ok{display:block;background:rgba(31,138,91,.1);border:1px solid rgba(31,138,91,.28);color:#14603F}
.form-status.err{display:block;background:rgba(214,69,69,.08);border:1px solid rgba(214,69,69,.28);color:#8E2B2B}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2A44;color:#C7D6E4;padding-top:72px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:19px;font-weight:700}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:17px}
.footer-about{max-width:340px;font-size:14px;line-height:1.9;color:#9FB4C8}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:#9FB4C8}
.footer-col a{color:#9FB4C8;transition:var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:22px 0;font-size:13px;color:#8AA0B6;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.25);color:#C7D6E4;
  display:grid;place-items:center;font-size:13px;transition:var(--ease);
}
.footer-social a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 26px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .menu-btn{display:flex}
  .channelbar .channel-inner a{padding:8px 12px;font-size:14.5px}
  .article-wrap{grid-template-columns:1fr;gap:24px;padding-top:28px}
  .article-side{order:-1}
  .toc-toggle{display:flex}
  .toc{position:static;display:none}
  .toc.open{display:block}
  .cta-card{grid-template-columns:1fr;gap:30px;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cards-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  :root{--sp-section:52px}
  .topbar{height:60px}
  .brand{font-size:17px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
  .brand-sub{font-size:11px}
  .topbar-tools{gap:8px}
  .icon-btn,.menu-btn{width:42px;height:42px}
  .article-head{padding:16px 0 20px}
  .article-head h1{font-size:26px}
  .article-lead{font-size:16px}
  .section-head{margin-bottom:22px}
  .section-head h2{font-size:23px;padding-left:14px}
  .cards-3{grid-template-columns:1fr;gap:18px}
  .post-nav{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .site-footer{padding-top:52px}
  .cta-card{padding:22px;border-radius:20px}
  .prose h2{font-size:22px;margin-top:36px}
  .prose h3{font-size:19px}
  .prose blockquote{padding:16px 18px}
  .faq summary{font-size:16px;padding:16px 48px 16px 16px}
  .faq-body{padding:0 16px 18px;font-size:14.5px}
}
@media (max-width:519px){
  .topbar-tools .btn-primary{display:none}
  .brand-sub{display:none}
  .breadcrumb{font-size:13px}
  .meta-row{font-size:13px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1D5E8C;
  --c-primary-d:#14456A;
  --c-primary-l:#E8F1F8;
  --c-accent:#E07A3F;
  --c-accent-l:#FDF0E7;
  --bg:#F5F8FB;
  --bg-alt:#EEF4F9;
  --card:#FFFFFF;
  --border:#E2EAF2;
  --text:#1F2A37;
  --text-2:#5B6B7C;
  --text-3:#A9B4C0;
  --ok:#1F8A5B;
  --err:#D64545;
  --warn:#C98A16;
  --r-lg:20px;
  --r-card:16px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,42,66,.05),0 8px 24px -12px rgba(18,42,66,.16);
  --sh-2:0 14px 32px -14px rgba(18,42,66,.26);
  --t:200ms cubic-bezier(.4,0,.2,1);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,94,140,.22);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);transition:color var(--t)}
.brand:hover{color:var(--c-primary)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22);
}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--text-2);letter-spacing:.06em;line-height:1.5}
.topbar-tools{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;
  color:var(--text-2);display:grid;place-items:center;cursor:pointer;transition:all var(--t);
}
.icon-btn svg{width:20px;height:20px}
.icon-btn:hover{border-color:rgba(29,94,140,.35);color:var(--c-primary);background:var(--c-primary-l)}
.icon-btn:active{transform:translateY(1px)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;margin:3px auto;transition:all var(--t)}
.menu-btn:hover{border-color:rgba(29,94,140,.35);background:var(--c-primary-l)}

.channelbar{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.channel-inner{display:flex;align-items:stretch;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;display:inline-flex;align-items:center;padding:0 16px;
  font-size:15px;color:var(--text-2);white-space:nowrap;transition:color var(--t),background var(--t);
}
.channel-inner a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;border-radius:2px;
  background:var(--c-primary);opacity:0;transform:scaleX(.6);transition:all var(--t);
}
.channel-inner a:hover{color:var(--c-primary);background:rgba(29,94,140,.05)}
.channel-inner a.active{color:var(--c-primary);font-weight:600}
.channel-inner a.active::after{opacity:1;transform:scaleX(1)}

/* 移动抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(15,42,68,.42);opacity:0;visibility:hidden;
  transition:all var(--t);z-index:80;
}
body.drawer-open .drawer-backdrop{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:86vw;background:#fff;
  border-radius:16px 0 0 16px;box-shadow:var(--sh-2);padding:22px 20px;z-index:90;
  transform:translateX(104%);transition:transform var(--t);display:flex;flex-direction:column;gap:18px;
}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:16px;font-weight:700;color:var(--text)}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;
  font-size:20px;line-height:1;color:var(--text-2);cursor:pointer;transition:all var(--t);
}
.drawer-close:hover{color:var(--c-primary);border-color:rgba(29,94,140,.35);background:var(--c-primary-l)}
.drawer-nav{display:grid;gap:8px}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;border:1px solid var(--border);
  font-size:15px;color:var(--text);transition:all var(--t);
}
.drawer-nav a:hover{background:var(--c-primary-l);border-color:rgba(29,94,140,.3);color:var(--c-primary)}
.drawer-nav a.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.drawer-cta{width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:all var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(20,69,106,.9)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:rgba(29,94,140,.3);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);border-color:rgba(29,94,140,.55);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{background:none;border:0;padding:0;height:auto;color:var(--c-primary);font-weight:600}
.btn-text span{display:inline-block;transition:transform var(--t)}
.btn-text:hover span{transform:translateX(3px)}
.btn-text:hover{text-decoration:underline;text-underline-offset:3px}
.btn[disabled],.btn.is-disabled{background:#EDF1F5;color:var(--text-3);border-color:var(--border);cursor:not-allowed;box-shadow:none;transform:none}
.btn-lg{height:50px;padding:0 26px;font-size:16px}

/* ============ 标签 ============ */
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.chip-accent{background:var(--c-accent-l);color:var(--c-accent)}
.chip-line{background:#fff;border:1px solid var(--border);color:var(--text-2);font-weight:500}

/* ============ 通用区块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-texture{
  background-image:repeating-linear-gradient(135deg,rgba(29,94,140,.035) 0 1px,transparent 1px 18px);
}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.12em;color:var(--c-primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--c-accent);border-radius:2px;transform:rotate(45deg)}
.section-head h2{font-size:clamp(24px,3vw,34px);color:var(--text)}
.section-head .lead{margin-top:14px;font-size:16px;line-height:1.9;color:var(--text-2)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 横幅 ============ */
.page-hero{
  position:relative;color:#fff;padding:64px 0 100px;
  background-image:linear-gradient(100deg,rgba(12,34,54,.92) 0%,rgba(19,62,94,.74) 52%,rgba(21,72,106,.38) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.86);transition:color var(--t)}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:rgba(255,255,255,.45)}
.crumbs .current{color:rgba(255,255,255,.6)}
.page-hero h1{
  margin-top:22px;font-size:clamp(30px,4.4vw,46px);color:#fff;
  letter-spacing:.015em;max-width:16em;
}
.page-hero .hero-lead{
  margin-top:18px;max-width:620px;font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.86);
}
.page-hero .hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.page-hero .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);color:#fff}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff}

/* 信息条 */
.fact-section{position:relative;z-index:3;margin-top:-58px}
.fact-bar{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.fact-item{padding:24px 26px;border-left:1px dashed var(--border)}
.fact-item:first-child{border-left:0}
.fact-item .fact-key{font-size:13px;color:var(--c-accent);font-weight:600;letter-spacing:.06em}
.fact-item .fact-val{margin-top:6px;font-size:15.5px;color:var(--text);font-weight:600;line-height:1.7}
.fact-item .fact-desc{margin-top:6px;font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ============ 方案模块 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.plan-main{grid-column:span 7}
.plan-side{grid-column:span 5;display:grid;gap:24px;align-content:start}
.plan-strip{grid-column:span 12;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,94,140,.2)}
.card h3{font-size:20px;margin-bottom:12px}
.card p{font-size:15px;color:var(--text-2);line-height:1.85}
.icon-badge{
  width:44px;height:44px;border-radius:13px;background:var(--c-primary-l);color:var(--c-primary);
  display:grid;place-items:center;margin-bottom:16px;border:1px solid rgba(29,94,140,.14);
}
.icon-badge svg{width:22px;height:22px}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.8}
.check-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--c-accent);transform:rotate(45deg);
}
.mini-card{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px dashed var(--border);
  border-radius:14px;padding:22px;transition:all var(--t);
}
.mini-card:hover{border-color:rgba(29,94,140,.35);background:var(--c-primary-l);transform:translateY(-2px)}
.mini-card .mini-mark{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:var(--c-primary-l);
  color:var(--c-primary);display:grid;place-items:center;font-size:13px;font-weight:700;
}
.mini-card h3{font-size:16.5px;margin-bottom:6px}
.mini-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ============ 流程 ============ */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-right:8px}
.step:not(:last-child)::after{
  content:"";position:absolute;top:24px;left:100%;width:24px;
  border-top:1px dashed rgba(29,94,140,.4);
}
.step-num{
  font-size:42px;line-height:1;font-weight:700;color:transparent;
  -webkit-text-stroke:1.2px rgba(29,94,140,.5);letter-spacing:.02em;
}
.step h3{margin-top:14px;font-size:18px}
.step p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.85}

/* ============ 行式列表 ============ */
.row-list{border-top:1px dashed var(--border)}
.row-list>li{border-bottom:1px dashed var(--border)}
.row-item{
  display:grid;grid-template-columns:240px 1fr;gap:26px;align-items:center;
  padding:24px 18px;border-radius:14px;transition:background var(--t),transform var(--t);
}
.row-item:hover{background:var(--c-primary-l);transform:translateX(2px)}
.row-thumb{
  aspect-ratio:8/5;border-radius:12px;overflow:hidden;background:#E7EEF4;
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.4,0,.2,1)}
.row-item:hover .row-thumb img{transform:scale(1.04)}
.row-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.row-body h3{font-size:19px;margin-bottom:10px}
.row-body h3 a{transition:color var(--t)}
.row-body h3 a:hover{color:var(--c-primary)}
.row-body p{
  font-size:15px;color:var(--text-2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px;font-size:13px;color:var(--text-3)}
.row-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3)}
.row-meta .row-link{color:var(--c-primary);font-weight:600;font-size:14px}
.row-meta .row-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:0 22px;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(29,94,140,.3);box-shadow:var(--sh-1)}
.faq-item summary{
  cursor:pointer;list-style:none;position:relative;padding:20px 44px 20px 0;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:8px;background:var(--c-primary-l);color:var(--c-primary);
  display:grid;place-items:center;font-size:17px;font-weight:600;transition:transform var(--t),background var(--t);
}
.faq-item[open] summary::after{content:"−";background:var(--c-primary);color:#fff}
.faq-body{padding:0 44px 22px 0;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ============ 咨询表单 ============ */
.cta-band{background:var(--c-primary-l);padding:72px 0}
.cta-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px;
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px)}
.cta-card .cta-intro{margin-top:14px;font-size:15.5px;color:var(--text-2);line-height:1.9;max-width:760px}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.field{display:flex;flex-direction:column;gap:8px}
.field.wide{grid-column:span 3}
.field label{font-size:13.5px;font-weight:600;color:var(--text-2)}
.field input,.field textarea{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--r-sm);
  background:#fff;padding:0 14px;font-size:15px;color:var(--text);
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,94,140,.22);
}
.field.error input,.field.error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(214,69,69,.14)}
.field .err-msg{display:none;font-size:12px;color:var(--err)}
.field.error .err-msg{display:block}
.form-foot{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:6px}
.form-note{font-size:12.5px;color:var(--text-3);line-height:1.7}
.form-alert{
  display:none;margin-top:18px;padding:13px 16px;border-radius:var(--r-sm);font-size:14px;
}
.form-alert.is-show{display:block}
.form-alert.success{background:#E9F5EF;border:1px solid #BFE3D1;color:var(--ok)}
.form-alert.error{background:#FDECEC;border:1px solid #F3C7C7;color:var(--err)}
.contact-line{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap;font-size:14px;color:var(--text-2)}
.contact-line strong{color:var(--text);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{background:#0F2A44;color:#AFC2D4;padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:40px;padding-bottom:46px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.24)}
.footer-about{font-size:14px;line-height:1.9;color:#9FB3C8;max-width:38em}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col li,.footer-col a{font-size:14px;color:#AFC2D4;line-height:1.7}
.footer-col a{transition:color var(--t)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#8FA5BA;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.25);
  display:grid;place-items:center;font-size:13px;color:#C9D6E3;transition:all var(--t);
}
.footer-social a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .cta-band{padding:58px 0}
  .menu-btn{display:grid}
  .icon-btn{display:none}
  .plan-main,.plan-side{grid-column:span 12}
  .plan-side{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .step:nth-child(2)::after{display:none}
  .fact-bar{grid-template-columns:repeat(2,1fr)}
  .fact-item:nth-child(3){border-left:0}
  .fact-item:nth-child(n+3){border-top:1px dashed var(--border)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .section{padding:52px 0}
  .cta-band{padding:44px 0}
  .topbar{min-height:60px}
  .brand{font-size:16.5px}
  .brand-sub{display:none}
  .page-hero{padding:44px 0 84px}
  .page-hero .hero-actions{gap:10px}
  .page-hero .btn{flex:1 1 auto}
  .fact-section{margin-top:-48px}
  .fact-bar{grid-template-columns:1fr}
  .fact-item{border-left:0;border-top:1px dashed var(--border);padding:20px 20px}
  .fact-item:first-child{border-top:0}
  .plan-side{grid-template-columns:1fr}
  .plan-strip{grid-template-columns:1fr}
  .process{grid-template-columns:1fr;gap:22px}
  .step{padding-left:20px;border-left:1px dashed rgba(29,94,140,.35);padding-bottom:4px}
  .step::after{display:none}
  .step-num{font-size:34px}
  .row-item{grid-template-columns:1fr;gap:16px;padding:20px 14px}
  .row-thumb{aspect-ratio:16/9}
  .row-item:hover{transform:none}
  .card{padding:22px}
  .cta-card{padding:24px}
  .form-grid{grid-template-columns:1fr;gap:14px}
  .field.wide{grid-column:span 1}
  .faq-item{padding:0 18px}
  .faq-body{padding-right:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{font-size:12.5px}
}
@media (max-width:479px){
  .btn{height:44px;padding:0 16px;font-size:14.5px}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:15px}
  .channel-inner a{padding:0 12px;font-size:14px}
  .page-hero h1{font-size:26px}
}