/* roulang page: index */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,42,80,.06),0 1px 3px rgba(16,42,80,.04);
  --sh2:0 6px 16px rgba(16,42,80,.08);
  --sh3:0 16px 40px rgba(16,42,80,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-primary-hover)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
hr{border:0;border-top:1px solid var(--c-divider);margin:0}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-title{font-size:clamp(22px,2.4vw,28px);color:var(--c-text)}
.section-desc{font-size:14px;color:var(--c-text-2);margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);padding:6px 14px;letter-spacing:.02em}

/* 顶部细条 */
.topbar{background:#FFFFFF;border-bottom:1px solid var(--c-divider);font-size:13px}
.topbar-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar-text{color:var(--c-text-3);font-size:13px;line-height:1.6;padding:6px 0}
.topbar-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 0}
.topbar-link svg{width:14px;height:14px;transition:transform .18s var(--ease)}
.topbar-link:hover svg{transform:translateX(3px)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border)}
.header-main{display:flex;align-items:center;gap:24px;min-height:68px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary) 0%,#2F7FE0 100%);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh1)}
.brand-text{font-size:15px;font-weight:700;color:var(--c-text);line-height:1.25;max-width:170px}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:.04em}
.search-bar{flex:1 1 auto;max-width:560px;min-width:220px;display:flex;align-items:center;gap:6px;background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-pill);padding:5px 5px 5px 16px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.search-bar:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15);background:#fff}
.search-icon{width:18px;height:18px;color:var(--c-text-3);flex-shrink:0}
.search-bar input{flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;height:38px;font-size:15px}
.search-bar input::placeholder{color:var(--c-text-3);font-size:14px}
.search-btn{flex-shrink:0;height:38px;min-width:76px;border:0;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;transition:background-color .18s var(--ease)}
.search-btn:hover{background:var(--c-primary-hover)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-border);background:#fff;border-radius:var(--r-md);align-items:center;justify-content:center}
.menu-toggle svg{width:20px;height:20px;color:var(--c-text)}
.cat-nav{border-top:1px solid var(--c-divider);background:#fff}
.cat-nav-inner{display:flex;align-items:center;gap:10px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none}
.cat-nav-inner::-webkit-scrollbar{display:none}
.chip{flex-shrink:0;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--c-border);background:var(--c-bg);font-size:14px;color:var(--c-text-2);transition:all .18s var(--ease)}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#CDE0F8}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-md);border:1px solid transparent;font-size:15px;font-weight:600;transition:all .18s var(--ease);white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--c-border);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);border-color:#CDE0F8;color:var(--c-primary)}
.btn-warm{background:var(--c-warm);color:#fff}
.btn-warm:hover{background:#F2682F;color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px}
.btn-link svg{width:15px;height:15px;transition:transform .18s var(--ease)}
.btn-link:hover svg{transform:translateX(3px)}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-border)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center right;opacity:.55}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#F7FAFF 0%,rgba(247,250,255,.94) 44%,rgba(247,250,255,.62) 72%,rgba(247,250,255,.9) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;padding:72px 0 76px}
.hero-copy h1{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.25;margin:18px 0 16px;max-width:16em}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:30em}
.hero-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:26px}
.trust-row{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:26px;padding-top:20px;border-top:1px solid var(--c-border)}
.trust-item{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-text-2)}
.trust-item svg{width:15px;height:15px;color:var(--c-accent);flex-shrink:0}

/* 表单卡 */
.lead-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);box-shadow:var(--sh3);padding:26px}
.lead-card h2{font-size:19px}
.lead-card .lead-sub{font-size:13px;color:var(--c-text-2);margin-top:8px;margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:6px}
.field input,.field select{width:100%;height:44px;padding:0 14px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15)}
.field .err{display:none;font-size:13px;color:var(--c-danger);margin-top:6px}
.field.has-error input{border-color:var(--c-danger)}
.field.has-error .err{display:block}
.check{display:flex;gap:9px;align-items:flex-start;font-size:12px;color:var(--c-text-3);line-height:1.65;margin:6px 0 16px}
.check input{width:16px;height:16px;margin-top:3px;flex-shrink:0;accent-color:var(--c-primary)}
.form-note{font-size:12px;color:var(--c-text-3);margin-top:12px;text-align:center}
.form-success{display:none;font-size:13px;color:#0E8B63;background:var(--c-accent-soft);border-radius:var(--r-md);padding:10px 14px;margin-top:12px}
.form-success.is-on{display:block}

/* 痛点问句区 */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px}
.pain-item{display:flex;gap:14px;background:transparent;border-left:3px solid var(--c-primary);padding:6px 0 6px 18px}
.pain-q{display:flex;align-items:flex-start;gap:12px;font-size:16px;font-weight:600;color:var(--c-text)}
.pain-q .qdot{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:4px}
.pain-body{flex:1 1 auto;min-width:0}
.pain-a{font-size:14px;color:var(--c-text-2);margin-top:8px}
.pain-a a{font-weight:600}

/* 方案卡 */
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.plan-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:26px;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.plan-icon{width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.plan-icon svg{width:22px;height:22px}
.plan-card h3{font-size:18px;margin-bottom:12px}
.plan-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);margin-bottom:8px}
.plan-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-accent)}
.plan-card .btn-link{margin-top:14px}
.plan-wide{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;padding:0;overflow:hidden;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh2);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.plan-wide:hover{transform:translateY(-2px);box-shadow:var(--sh3)}
.plan-wide-body{padding:32px}
.plan-wide-body h3{font-size:20px;margin-bottom:12px}
.plan-wide-body p{font-size:15px;color:var(--c-text-2)}
.plan-wide-media{position:relative;min-height:260px;background:#DDE7F5}
.plan-wide-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}

/* 数据带 */
.stats{background:var(--c-primary-soft-2);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat-num{font-size:38px;font-weight:700;line-height:1.1;color:var(--c-primary)}
.stat-num.accent{color:var(--c-accent)}
.stat-label{font-size:15px;font-weight:600;margin-top:10px}
.stat-note{font-size:12px;color:var(--c-text-3);margin-top:6px;line-height:1.6}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.steps::before{content:"";position:absolute;top:19px;left:6%;right:6%;height:2px;background:linear-gradient(90deg,var(--c-accent-soft),var(--c-accent),var(--c-accent-soft))}
.step{position:relative;text-align:left}
.step-num{width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--c-accent);color:var(--c-accent);font-weight:700;display:flex;align-items:center;justify-content:center;position:relative;z-index:1;margin-bottom:16px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--c-text-2)}

/* 资讯列表 */
.news-head-link{font-size:14px}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.news-thumb{display:block;aspect-ratio:16/9;background:linear-gradient(135deg,#E6EEF9,#DCE7F4);overflow:hidden;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;align-self:flex-start}
.news-title{font-size:17px;margin:12px 0 10px;line-height:1.45}
.news-title a{color:var(--c-text)}
.news-title a:hover{color:var(--c-primary)}
.news-excerpt{font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-time{font-size:12px;color:var(--c-text-3);margin-top:14px;display:block}
.empty-state{grid-column:1 / -1;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--r-lg);padding:48px 24px;text-align:center;color:var(--c-text-2)}
.empty-state svg{width:36px;height:36px;color:var(--c-text-3);margin:0 auto 14px}
.empty-state p{font-size:15px;margin-bottom:16px}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;padding:16px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);transition:color .18s var(--ease)}
.faq-q:hover{color:var(--c-primary)}
.faq-q .plus{flex-shrink:0;width:22px;height:22px;position:relative}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s var(--ease)}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item.is-open .plus::after{transform:scaleY(0)}
.faq-a{display:none;font-size:15px;color:var(--c-text-2);padding:0 4px 22px;line-height:1.8}
.faq-item.is-open .faq-a{display:block}
.faq-a ul{margin-top:10px}
.faq-a li{position:relative;padding-left:18px;margin-bottom:6px}
.faq-a li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--c-primary-soft-2);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.16}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:56px 0;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px)}
.cta-inner p{font-size:15px;color:var(--c-text-2);margin-top:10px;max-width:52ch}

/* 弹层 */
.modal-mask{position:fixed;inset:0;background:rgba(16,32,58,.5);backdrop-filter:blur(2px);display:none;align-items:center;justify-content:center;padding:24px;z-index:120}
.modal-mask.is-open{display:flex}
.modal{width:100%;max-width:540px;max-height:88vh;overflow:auto;background:#fff;border-radius:var(--r-xl);box-shadow:var(--sh3);padding:28px;position:relative}
.modal h2{font-size:20px}
.modal .modal-sub{font-size:14px;color:var(--c-text-2);margin:10px 0 20px}
.modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:var(--r-md);border:1px solid var(--c-border);background:#fff;display:flex;align-items:center;justify-content:center}
.modal-close svg{width:16px;height:16px;color:var(--c-text-2)}

/* Toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#fff;border:1px solid var(--c-border);border-left:4px solid var(--c-primary);border-radius:12px;box-shadow:var(--sh2);padding:14px 20px;font-size:14px;color:var(--c-text);opacity:0;pointer-events:none;transition:all .22s var(--ease);z-index:200;max-width:88vw}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--c-border);padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand span.mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.footer-brand span.name{font-size:15px;font-weight:700;color:var(--c-text)}
.footer-text{font-size:13px;color:#7A8899;line-height:1.85;max-width:32ch}
.footer-col h3{font-size:13px;color:var(--c-text-3);font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:#7A8899}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--c-divider);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:#7A8899}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{font-size:13px;color:#7A8899}
.mobile-search{display:none;margin-bottom:26px}

@media (max-width:1199px){
  .section{padding:64px 0}
  .hero-inner{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 60px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:28px}
}
@media (max-width:991px){
  .header-main{flex-wrap:wrap;padding-bottom:14px}
  .search-bar{order:3;flex:1 1 100%;max-width:none}
  .hero-inner{grid-template-columns:1fr;gap:28px}
  .plan-grid{grid-template-columns:1fr}
  .plan-wide{grid-template-columns:1fr}
  .plan-wide-media{min-height:200px;order:-1}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps::before{display:none}
  .pain-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
  .brand-text{max-width:none;font-size:14px;min-width:11px}
  .header-actions .btn-primary{display:none}
  .menu-toggle{display:flex}
  .cat-nav{display:none}
  .cat-nav.is-open{display:block}
  .cat-nav-inner{flex-wrap:nowrap}
  .news-grid{grid-template-columns:1fr}
  .hero-cta .btn{flex:1 1 auto}
  .trust-row{gap:14px}
  .cta-inner{padding:44px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .modal-mask{align-items:flex-end;padding:0}
  .modal{max-width:none;border-radius:var(--r-xl) var(--r-xl) 0 0;max-height:88vh;padding:24px 18px 30px}
  .mobile-search{display:block}
}
@media (max-width:479px){
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .stat-num{font-size:32px}
  .lead-card{padding:20px}
  .plan-wide-body{padding:22px}
  .news-body{padding:18px}
  .brand-mark{width:34px;height:34px;font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r-chip:8px;
  --r-input:10px;
  --r-card:16px;
  --r-hero:20px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,80,.06),0 1px 3px rgba(16,42,80,.04);
  --shadow-2:0 6px 16px rgba(16,42,80,.08);
  --shadow-3:0 16px 40px rgba(16,42,80,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-input);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .16s var(--ease),background-color .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:#C9DDF7}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-warm{background:var(--c-warm);color:#fff}
.btn-warm:hover{background:#F2682F;transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:15px;font-weight:600;padding:6px 2px;background:none;border:0;
}
.btn-text svg{width:16px;height:16px;transition:transform .18s var(--ease)}
.btn-text:hover svg{transform:translateX(2px)}
.btn-text:hover{color:var(--c-primary-hover)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);box-shadow:0 1px 2px rgba(16,42,80,.04);
}
.header-main{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--c-primary),#2E82E4);color:#fff;
  font-weight:700;font-size:19px;box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;font-weight:700;font-size:15px;line-height:1.25;letter-spacing:-.01em}
.brand-text small{font-size:11px;font-weight:400;color:var(--c-text-3);letter-spacing:.02em}
.search-bar{
  position:relative;display:flex;align-items:center;flex:1 1 auto;
  max-width:560px;height:46px;background:var(--c-bg);
  border:1px solid var(--c-border);border-radius:var(--r-pill);
  padding:0 4px 0 42px;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease);
}
.search-bar:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15)}
.search-icon{position:absolute;left:14px;width:18px;height:18px;color:var(--c-text-3)}
.search-bar input{
  flex:1;min-width:0;height:44px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);
}
.search-bar input::placeholder{color:var(--c-text-3)}
.search-btn{
  height:36px;padding:0 18px;border:0;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .16s var(--ease),transform .16s var(--ease);
}
.search-btn:hover{background:var(--c-primary-hover)}
.search-btn:active{transform:scale(.97)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--r-input);
  background:#fff;align-items:center;justify-content:center;color:var(--c-text-2);
}
.menu-toggle svg{width:20px;height:20px}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.cat-nav{background:#fff;border-top:1px solid var(--c-divider)}
.cat-nav-inner{display:flex;align-items:center;gap:10px;padding:10px 24px;overflow-x:auto;scrollbar-width:none}
.cat-nav-inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-border);background:#fff;
  font-size:14px;color:var(--c-text-2);white-space:nowrap;flex-shrink:0;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#C9DDF7}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C3CEDA}
.breadcrumb .current{color:var(--c-text);font-weight:600}

/* ---------- 窄 Hero ---------- */
.page-hero{
  position:relative;padding:48px 0 52px;border-bottom:1px solid var(--c-border);
  background-image:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(245,248,252,.97) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero h1{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.25;max-width:900px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--c-text-2);max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:26px}
.hero-inline{display:flex;flex-wrap:wrap;gap:22px;margin-top:22px;font-size:13px;color:var(--c-text-3)}
.hero-inline span{display:inline-flex;align-items:center;gap:6px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,28px)}
.section-head p{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:14px;
}

/* ---------- 长卡流 ---------- */
.flow{display:flex;flex-direction:column;gap:24px}
.flow-card{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:30px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5E3F5}
.flow-media{border-radius:12px;overflow:hidden;background:var(--c-primary-soft-2)}
.flow-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.flow-body{padding:6px 8px}
.flow-body h3{font-size:20px;margin-bottom:12px}
.flow-body p{font-size:15px;color:var(--c-text-2);margin-bottom:12px}
.flow-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-chip);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;
}
.badge-accent{background:var(--c-accent-soft);color:#0E8F65}

/* ---------- 标签筛选条 ---------- */
.tag-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:28px;border-top:1px dashed var(--c-border)}
.tag{
  height:38px;padding:0 18px;border-radius:var(--r-pill);border:1px solid var(--c-border);
  background:#fff;color:var(--c-text-2);font-size:14px;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.tag:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#C9DDF7}
.tag.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.filter-note{margin-top:14px;font-size:13px;color:var(--c-text-3)}
.empty-state{
  display:none;flex-direction:column;align-items:center;gap:12px;
  padding:48px 24px;background:#fff;border:1px dashed var(--c-border);border-radius:var(--r-card);
  color:var(--c-text-2);text-align:center;
}
.empty-state svg{width:36px;height:36px;color:var(--c-text-3)}
.empty-state.is-show{display:flex}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--c-border);border-left:3px solid var(--c-primary);
  border-radius:12px;padding:18px 20px;box-shadow:none;
}
.check-item .tick{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--c-accent-soft);
  display:grid;place-items:center;color:#0E8F65;
}
.check-item .tick svg{width:15px;height:15px}
.check-item h3{font-size:16px;margin-bottom:6px}
.check-item p{font-size:14px;color:var(--c-text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:first-child{border-top:1px solid var(--c-border)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 4px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-border);
  display:grid;place-items:center;color:var(--c-primary);transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-q .plus svg{width:14px;height:14px}
.faq-item.is-open .faq-q .plus{transform:rotate(180deg);background:var(--c-primary-soft)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 4px 20px;font-size:15px;color:var(--c-text-2);max-width:720px}

/* ---------- CTA 带 ---------- */
.cta-band{
  border-radius:var(--r-hero);overflow:hidden;position:relative;
  background-image:linear-gradient(120deg,rgba(27,98,198,.94),rgba(18,185,129,.82)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;color:#fff;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);color:#fff}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.9);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--c-primary)}
.cta-band .btn-primary:hover{background:#EAF2FE;color:var(--c-primary-hover)}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ---------- 相关分类 ---------- */
.related{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:8px}
.related .label{font-size:13px;color:var(--c-text-3)}
.related a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-border);background:#fff;font-size:14px;color:var(--c-text-2);
}
.related a:hover{color:var(--c-primary);background:var(--c-primary-soft);border-color:#C9DDF7}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-border);padding:56px 0 26px;margin-top:72px}
.mobile-search{display:none;margin-bottom:26px}
.mobile-search .search-bar{max-width:100%}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--c-primary),#2E82E4);color:#fff;font-weight:700;font-size:17px;
}
.footer-brand .name{font-weight:700;font-size:15px}
.footer-text{font-size:13px;color:var(--c-text-3);line-height:1.85;max-width:330px}
.footer-col h3{font-size:13px;color:var(--c-text-3);font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:#7A8899}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--c-divider);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--c-text-3)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{font-size:13px;color:#7A8899}
.footer-links a:hover{color:var(--c-primary)}

/* ---------- 轻提示 ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);
  background:#fff;border:1px solid var(--c-border);border-left:4px solid var(--c-primary);
  border-radius:12px;box-shadow:var(--shadow-2);padding:12px 20px;font-size:14px;color:var(--c-text);
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);z-index:200;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:64px 0}
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .check-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .header-main{flex-wrap:wrap;height:auto;padding-top:14px;padding-bottom:14px;gap:14px}
  .search-bar{order:3;flex:1 0 100%;max-width:100%}
  .menu-toggle{display:inline-flex}
  .cat-nav{display:none}
  .cat-nav.is-open{display:block}
  .cat-nav-inner{flex-wrap:wrap;overflow:visible;padding-top:14px;padding-bottom:14px}
  .brand-text{font-size:14px}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .page-hero{padding:36px 0 40px}
  .flow-card{grid-template-columns:1fr;gap:18px;padding:16px}
  .flow-body{padding:0 4px 6px}
  .cta-band{padding:32px 24px}
  .mobile-search{display:block}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-nav-inner{padding-left:16px;padding-right:16px}
  .header-main{padding-left:16px;padding-right:16px}
  .flow-body h3{font-size:18px}
  .brand-text small{display:none}
  .section-head{margin-bottom:24px}
  .faq-q{font-size:15px}
  .cta-band{padding:26px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,42,80,.06), 0 1px 3px rgba(16,42,80,.04);
  --shadow-2:0 6px 16px rgba(16,42,80,.08);
  --shadow-3:0 16px 40px rgba(16,42,80,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-border)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:#C6DBF7}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(1.6) blur(10px);
  border-bottom:1px solid var(--c-border);
}
.header-main{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-md);flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary),#3D8BF2);
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;
  box-shadow:0 4px 10px rgba(27,98,198,.28);
}
.brand-text{display:flex;flex-direction:column;font-size:15px;font-weight:700;line-height:1.25}
.brand-text small{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:0}
.search-bar{
  position:relative;display:flex;align-items:center;flex:1 1 auto;
  max-width:560px;min-width:0;height:44px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-pill);
  padding-left:40px;padding-right:4px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-bar:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15)}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--c-text-3);pointer-events:none}
.search-bar input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;
  font-size:14px;color:var(--c-text);outline:none;
}
.search-bar input::placeholder{color:#A7B3C4}
.search-btn{
  height:36px;padding:0 18px;border:0;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  cursor:pointer;transition:background .18s var(--ease);
}
.search-btn:hover{background:var(--c-primary-hover)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.menu-toggle svg{width:22px;height:22px}

.cat-nav{border-top:1px solid var(--c-divider);background:#fff}
.cat-nav-inner{display:flex;align-items:center;gap:10px;height:56px;overflow-x:auto;scrollbar-width:none}
.cat-nav-inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-border);background:#fff;
  color:var(--c-text-2);font-size:14px;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#C6DBF7}
.chip.is-active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);font-weight:600}

/* ---------- 页面主体 ---------- */
.page{padding:28px 0 76px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C7D3E2}
.breadcrumb .current{
  color:var(--c-text-2);max-width:460px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:36px;align-items:start;
}
.article-main{
  min-width:0;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-xl);box-shadow:var(--shadow-1);
  padding:38px 42px 44px;
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-sm);background:var(--c-primary-soft);
  color:var(--c-primary);font-size:12px;font-weight:600;
}
.article-head h1{
  margin-top:14px;font-size:clamp(25px,2.8vw,33px);line-height:1.4;font-weight:700;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C7D3E2}
.article-cover{
  margin:26px 0 0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--shadow-1);background:#fff;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  font-size:13px;color:var(--c-text-3);text-align:center;
  padding:10px 14px;background:#fff;line-height:1.7;
}

/* ---------- 正文排版 ---------- */
.prose{margin-top:28px;font-size:16px;line-height:1.9;color:#1C2E48;word-wrap:break-word}
.prose p{margin:0 0 18px}
.prose h2{
  font-size:23px;line-height:1.45;font-weight:700;color:var(--c-text);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.prose h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-text);margin:28px 0 12px}
.prose h4{font-size:17px;font-weight:600;color:var(--c-text);margin:22px 0 10px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin-bottom:8px}
.prose ul li::marker{color:var(--c-primary)}
.prose ol li::marker{color:var(--c-primary);font-weight:600}
.prose blockquote{
  margin:22px 0;padding:16px 20px;border-left:4px solid var(--c-primary);
  background:var(--c-primary-soft-2);border-radius:0 var(--r-lg) var(--r-lg) 0;
  color:var(--c-text-2);font-size:15.5px;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;box-shadow:var(--shadow-1);margin:22px 0}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color .18s var(--ease)}
.prose a:hover{color:var(--c-primary-hover)}
.prose strong{font-weight:700;color:var(--c-text)}
.prose hr{border:0;border-top:1px solid var(--c-divider);margin:32px 0}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px}
.prose th{
  background:var(--c-primary-soft-2);text-align:left;
  padding:12px 14px;font-weight:600;color:var(--c-text);white-space:nowrap;
}
.prose td{padding:12px 14px;border-top:1px solid var(--c-divider);vertical-align:top}
.prose tbody tr:nth-child(even){background:#F8FAFD}
.prose .table-wrap{overflow-x:auto;border:1px solid var(--c-border);border-radius:12px;margin:22px 0}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:52px 24px;border:1px dashed var(--c-border);
  border-radius:var(--r-lg);background:#F8FAFD;color:var(--c-text-2);
}
.empty-state svg{width:46px;height:46px;color:#B9C7D8;margin:0 auto 14px;display:block}
.empty-state p{margin:0 0 18px;font-size:15px}

/* ---------- 标签 ---------- */
.tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--c-divider);
}
.tags-label{font-size:13px;color:var(--c-text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-pill);background:#F2F6FC;color:var(--c-text-2);
  font-size:13px;border:1px solid var(--c-border);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.tag:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#C6DBF7}

/* ---------- 相关推荐 ---------- */
.rel{margin-top:38px}
.rel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:18px}
.rel-head h2{font-size:20px;font-weight:700}
.rel-head a{font-size:13px;color:var(--c-primary);display:inline-flex;align-items:center;gap:4px}
.rel-head a:hover{text-decoration:underline}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{
  display:block;background:#fff;border:1px solid var(--c-border);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E3F5}
.rel-card .thumb{aspect-ratio:16/9;background:var(--c-primary-soft);overflow:hidden}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover}
.rel-card .body{padding:14px 16px 16px}
.rel-card h3{
  font-size:15px;line-height:1.5;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card p{
  font-size:13px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- 上一篇 / 下一篇 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.pager a{
  display:block;background:#fff;border:1px solid var(--c-border);
  border-radius:14px;padding:16px 18px;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.pager a:hover{background:var(--c-primary-soft);border-color:#C6DBF7;transform:translateY(-1px)}
.pager .label{font-size:12px;color:var(--c-text-3)}
.pager strong{display:block;margin-top:6px;font-size:14.5px;font-weight:600;color:var(--c-text)}
.pager .next{text-align:right}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- 侧栏 ---------- */
.article-side{
  position:sticky;top:142px;display:flex;flex-direction:column;gap:18px;min-width:0;
}
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card h2{font-size:15px;font-weight:700;margin-bottom:14px}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-text-2);
  padding:7px 10px;border-radius:var(--r-sm);border-left:2px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.toc-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-list a.lv3{padding-left:22px;font-size:13px;color:var(--c-text-3)}
.side-links{list-style:none;display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:13.5px;color:var(--c-text-2);padding:9px 10px;border-radius:var(--r-sm);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-links a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.side-links a::after{content:"→";color:#B9C7D8;font-size:13px;transition:transform .18s var(--ease)}
.side-links a:hover::after{transform:translateX(2px);color:var(--c-primary)}
.side-cta{
  background:linear-gradient(160deg,#F2F8FF 0%,#EAF2FE 100%);
  border:1px solid #D8E6F9;
}
.side-cta p{font-size:13.5px;line-height:1.75;color:var(--c-text-2);margin-bottom:14px}
.side-cta .btn{width:100%}
.side-back{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--c-primary)}
.side-back:hover{text-decoration:underline}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#EAF2FE 0%,#F5F8FC 100%);
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);
  padding:44px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(19px,2.2vw,24px);font-weight:700;margin-bottom:8px}
.cta-inner p{font-size:14.5px;color:var(--c-text-2);max-width:660px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;padding:56px 0 26px;border-top:1px solid var(--c-border)}
.mobile-search{display:none;margin-bottom:26px}
.mobile-search .search-bar{max-width:none;width:100%}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:32px;height:32px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:15px;
}
.footer-brand .name{font-size:15px;font-weight:700}
.footer-text{font-size:13px;line-height:1.85;color:#7A8899;max-width:330px}
.footer-col h3{font-size:13px;font-weight:600;color:var(--c-text-3);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:#7A8899;transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--c-divider);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#7A8899}
.footer-links{display:flex;gap:20px}
.footer-links a{font-size:13px;color:#7A8899;transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-side{position:static}
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:991px){
  .header-main{height:auto;padding:12px 0;flex-wrap:wrap;row-gap:12px}
  .search-bar{order:3;flex:1 1 100%;max-width:none}
  .menu-toggle{display:inline-flex}
  .cat-nav{display:none}
  .cat-nav.is-open{display:block;border-top:1px solid var(--c-divider)}
  .cat-nav.is-open .cat-nav-inner{height:auto;flex-wrap:wrap;padding:12px 0;row-gap:10px}
  .cat-nav.is-open .cat-nav-inner::-webkit-scrollbar{display:none}
  .article-main{padding:30px 26px 34px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .page{padding:20px 0 56px}
  .brand-text{font-size:14px}
  .brand-text small{font-size:11px}
  .article-main{padding:24px 18px 30px;border-radius:var(--r-lg)}
  .article-head h1{font-size:23px}
  .prose h2{font-size:20px;margin-top:32px}
  .prose h3{font-size:17.5px}
  .rel-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
  .mobile-search{display:block}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:34px 0}
}
@media (max-width:480px){
  .article-main{padding:20px 14px 26px}
  .article-head h1{font-size:21px}
  .footer-links{gap:14px}
  .btn{height:42px;padding:0 16px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-warm-hover:#F06633;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,80,.06),0 1px 3px rgba(16,42,80,.04);
  --sh-2:0 6px 16px rgba(16,42,80,.08);
  --sh-3:0 16px 40px rgba(16,42,80,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","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-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s cubic-bezier(.2,.8,.2,1);}
a:hover{color:var(--c-primary-hover);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
strong{font-weight:600;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:-.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s cubic-bezier(.2,.8,.2,1),color .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s cubic-bezier(.2,.8,.2,1),transform .18s cubic-bezier(.2,.8,.2,1);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);border-color:#CFE1F8;}
.btn-warm{background:var(--c-warm);color:#fff;}
.btn-warm:hover{background:var(--c-warm-hover);color:#fff;transform:translateY(-1px);}
.btn-warm:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.btn-link svg{width:16px;height:16px;transition:transform .18s cubic-bezier(.2,.8,.2,1);}
.btn-link:hover svg{transform:translateX(3px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
}
.header-main{
  display:flex;align-items:center;gap:20px;
  min-height:68px;padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,#2C79DE,#1B62C6);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(27,98,198,.28);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.25;
  font-size:15px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;
}
.brand-text small{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:0;}
.search-bar{
  flex:1 1 auto;max-width:560px;
  display:flex;align-items:center;gap:8px;
  min-width:0;height:46px;padding:4px 4px 4px 16px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:border-color .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s cubic-bezier(.2,.8,.2,1);
}
.search-bar:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15);}
.search-icon{width:20px;height:20px;color:var(--c-text-3);flex-shrink:0;}
.search-bar input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;height:38px;
  font-size:14px;color:var(--c-text);
}
.search-bar input::placeholder{color:var(--c-text-3);}
.search-bar input:focus{outline:none;}
.search-btn{
  flex-shrink:0;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s cubic-bezier(.2,.8,.2,1);
}
.search-btn:hover{background:var(--c-primary-hover);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  align-items:center;justify-content:center;
}
.menu-toggle svg{width:22px;height:22px;}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}

.cat-nav{border-top:1px solid var(--c-divider);background:#fff;}
.cat-nav-inner{
  display:flex;align-items:center;gap:10px;
  padding-top:10px;padding-bottom:10px;
  overflow-x:auto;scrollbar-width:none;
}
.cat-nav-inner::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;display:inline-flex;align-items:center;
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--c-text-2);
  background:#F7FAFE;border:1px solid var(--c-border);
  transition:background-color .18s cubic-bezier(.2,.8,.2,1),color .18s cubic-bezier(.2,.8,.2,1),border-color .18s cubic-bezier(.2,.8,.2,1);
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#CFE1F8;}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:18px 0 4px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#C3CEDC;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb [aria-current]{color:var(--c-text);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;margin:14px 0 0;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--sh-2);
  background:#0F2440 url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,28,54,.90) 0%,rgba(14,42,80,.78) 46%,rgba(20,58,104,.42) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:56px 48px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#DCE9FB;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.cat-hero h1{
  margin:18px 0 12px;
  font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;color:#fff;
}
.cat-hero p{color:#C9DAF0;font-size:16px;line-height:1.8;max-width:640px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:26px;}
.cat-hero .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.32);color:#fff;}
.cat-hero .btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.5);}
.cat-hero .btn-link{color:#BFD8F9;}
.cat-hero .btn-link:hover{color:#fff;}

/* ---------- 通用区块 ---------- */
.section{padding:76px 0 0;}
.section:last-of-type{padding-bottom:0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;
  letter-spacing:-.01em;color:var(--c-text);
}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15px;line-height:1.85;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 场景区 非对称 7:5 ---------- */
.split-7-5{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start;}
.panel{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:28px;
}
.scene-list{display:flex;flex-direction:column;gap:2px;margin-top:22px;}
.scene-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-top:1px solid var(--c-divider);
}
.scene-list li:first-child{border-top:0;padding-top:4px;}
.scene-idx{
  flex-shrink:0;width:28px;height:28px;border-radius:var(--r-sm);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.scene-list strong{display:block;font-size:15px;color:var(--c-text);line-height:1.6;}
.scene-list span{display:block;font-size:14px;color:var(--c-text-2);line-height:1.75;margin-top:4px;}
.media-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;
}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#E9EEF6;}
.media-card .media-body{padding:20px 22px 24px;}
.media-card h3{font-size:17px;font-weight:700;color:var(--c-text);line-height:1.5;}
.media-card p{margin-top:8px;font-size:14px;color:var(--c-text-2);line-height:1.8;}
.media-card .tips{
  margin-top:16px;padding:14px 16px;border-radius:var(--r-md);
  background:var(--c-accent-soft);border:1px solid #C9EEDF;
  font-size:13px;color:#0B7A56;line-height:1.75;
}

/* ---------- 对比表格 ---------- */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:820px;border-collapse:collapse;font-size:14px;}
table.compare caption{
  caption-side:top;text-align:left;padding:22px 24px 4px;
  font-size:13px;color:var(--c-text-3);
}
table.compare thead th{
  background:var(--c-primary);color:#fff;text-align:left;
  font-size:13px;font-weight:600;letter-spacing:.01em;
  padding:14px 20px;white-space:nowrap;
}
table.compare thead th:first-child{border-top-left-radius:0;}
table.compare tbody td{
  padding:16px 20px;border-top:1px solid var(--c-divider);
  color:var(--c-text-2);line-height:1.7;vertical-align:top;
}
table.compare tbody tr:nth-child(even){background:#F8FAFD;}
table.compare tbody tr:hover{background:var(--c-primary-soft-2);}
table.compare tbody td:first-child{color:var(--c-text);font-weight:600;white-space:nowrap;}
.tbl-note{
  padding:16px 24px 20px;font-size:13px;color:var(--c-text-3);
  border-top:1px solid var(--c-divider);background:#FCFDFF;
}
.pill-tag{
  display:inline-block;padding:2px 10px;border-radius:var(--r-sm);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;white-space:nowrap;
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px 22px;
  transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s cubic-bezier(.2,.8,.2,1);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  width:36px;height:36px;border-radius:50%;
  background:var(--c-accent);color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(18,185,129,.3);
}
.step h3{margin-top:16px;font-size:16px;font-weight:700;color:var(--c-text);line-height:1.5;}
.step p{margin-top:8px;font-size:14px;color:var(--c-text-2);line-height:1.78;}

/* ---------- FAQ 手风琴 ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  margin-bottom:14px;overflow:hidden;
  transition:box-shadow .18s cubic-bezier(.2,.8,.2,1),border-color .18s cubic-bezier(.2,.8,.2,1);
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item.is-open{border-color:#CFE1F8;}
.faq-h{margin:0;}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;gap:16px;
  padding:16px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .plus{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),background-color .2s cubic-bezier(.2,.8,.2,1);
}
.faq-q .plus svg{width:15px;height:15px;}
.faq-item.is-open .faq-q .plus{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.faq-a[hidden]{display:none;}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  position:relative;margin-top:76px;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--sh-2);
  background:#10263F url("/assets/images/backpic/back-3.png") center/cover no-repeat;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,32,58,.94) 0%,rgba(16,52,92,.86) 52%,rgba(20,64,112,.62) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 420px;gap:40px;padding:48px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;color:#fff;line-height:1.35;letter-spacing:-.01em;}
.cta-copy p{margin-top:14px;color:#C6D8EF;font-size:15px;line-height:1.85;max-width:520px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#D6E4F6;font-size:14px;line-height:1.7;}
.cta-points svg{width:18px;height:18px;flex-shrink:0;margin-top:4px;color:var(--c-accent);}
.form-card{
  background:var(--c-surface);border-radius:var(--r-xl);
  box-shadow:var(--sh-3);padding:28px;
}
.form-card h3{font-size:18px;font-weight:700;color:var(--c-text);}
.form-card .sub{margin-top:6px;font-size:13px;color:var(--c-text-3);line-height:1.7;}
.field{margin-top:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text-2);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--c-border);border-radius:var(--r-md);
  background:#FCFDFF;font-size:14px;color:var(--c-text);
  transition:border-color .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s cubic-bezier(.2,.8,.2,1);
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(27,98,198,.15);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-top:16px;}
.check-row input{width:16px;height:16px;margin-top:5px;flex-shrink:0;accent-color:var(--c-primary);}
.check-row label{font-size:12px;color:var(--c-text-3);line-height:1.7;}
.form-card .btn{width:100%;margin-top:18px;}
.form-msg{
  margin-top:12px;font-size:13px;color:#0B7A56;background:var(--c-accent-soft);
  border:1px solid #C9EEDF;border-radius:var(--r-md);padding:10px 14px;display:none;
}
.form-msg.show{display:block;}

/* ---------- 相关分类 ---------- */
.rel-cats{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:28px;}
.rel-cats .label{font-size:14px;color:var(--c-text-3);}
.rel-link{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-border);box-shadow:var(--sh-1);
  font-size:14px;font-weight:600;color:var(--c-text-2);
  transition:color .18s cubic-bezier(.2,.8,.2,1),border-color .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s cubic-bezier(.2,.8,.2,1),transform .18s cubic-bezier(.2,.8,.2,1);
}
.rel-link:hover{color:var(--c-primary);border-color:#CFE1F8;transform:translateY(-1px);box-shadow:var(--sh-2);}
.rel-link svg{width:16px;height:16px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:84px;background:#fff;border-top:1px solid var(--c-border);}
.mobile-search{display:none;padding:24px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,#2C79DE,#1B62C6);color:#fff;
  font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.footer-brand .name{font-size:15px;font-weight:700;color:var(--c-text);}
.footer-text{margin-top:14px;font-size:13px;color:#7A8899;line-height:1.85;max-width:340px;}
.footer-col h3{font-size:13px;font-weight:600;color:#8A98AB;letter-spacing:.02em;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:#7A8899;}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid var(--c-divider);
}
.footer-bottom p{font-size:13px;color:#7A8899;}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{font-size:13px;color:#7A8899;}
.footer-links a:hover{color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cta-inner{grid-template-columns:1fr 380px;gap:32px;}
}
@media (max-width:991px){
  .split-7-5{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding-top:56px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-main{flex-wrap:wrap;gap:12px;min-height:auto;padding-bottom:12px;}
  .search-bar{order:3;flex:1 1 100%;max-width:none;}
  .header-actions{margin-left:auto;}
  .menu-toggle{display:flex;}
  .cat-nav{display:none;}
  .cat-nav.is-open{display:block;}
  .cat-hero-inner{padding:36px 22px;}
  .cat-hero-actions{gap:10px;}
  .cat-hero-actions .btn{flex:1 1 auto;}
  .section{padding-top:48px;}
  .panel,.form-card{padding:22px;}
  .steps{grid-template-columns:1fr;}
  .cta-band{margin-top:56px;}
  .cta-inner{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 28px;}
  .mobile-search{display:block;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .brand-text{font-size:13px;}
  .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
  .cat-hero h1{font-size:26px;}
  .panel,.form-card{padding:18px;}
  .faq-q{padding:14px 16px;font-size:15px;}
  .faq-a{padding:0 16px 18px;font-size:14px;}
  .scene-list li{padding:14px 0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow-1:0 1px 2px rgba(16,42,80,.06),0 1px 3px rgba(16,42,80,.04);
  --shadow-2:0 6px 16px rgba(16,42,80,.08);
  --shadow-3:0 16px 40px rgba(16,42,80,.12);
  --container:1200px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  min-width:320px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.35}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

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

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-border)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft)}
.btn-warm{background:var(--c-warm);color:#fff;border-color:var(--c-warm)}
.btn-warm:hover{background:#F0682F;border-color:#F0682F;transform:translateY(-1px)}
.btn-warm:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;height:44px}
.btn-text svg{width:16px;height:16px;transition:transform .18s var(--ease)}
.btn-text:hover svg{transform:translateX(2px)}
.btn-text:hover{color:var(--c-primary-hover)}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  position:relative;z-index:60;
}
.header-main{
  display:flex;align-items:center;gap:24px;
  min-height:70px;padding-top:11px;padding-bottom:11px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;flex-shrink:0;
}
.brand-text{
  display:flex;flex-direction:column;font-size:16px;font-weight:700;line-height:1.2;
}
.brand-text small{font-size:11px;font-weight:400;color:var(--c-text-3);margin-top:2px}

.search-bar{
  position:relative;display:flex;align-items:center;
  flex:1 1 auto;max-width:560px;height:44px;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:999px;
  padding:0 4px 0 42px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-bar:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15)}
.search-icon{position:absolute;left:16px;width:18px;height:18px;color:var(--c-text-3)}
.search-bar input{
  flex:1;height:42px;border:0;background:transparent;outline:none;font-size:14px;min-width:0;
}
.search-bar input::placeholder{color:var(--c-text-3)}
.search-btn{
  height:36px;padding:0 18px;border-radius:999px;background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:600;transition:background-color .18s var(--ease);
}
.search-btn:hover{background:var(--c-primary-hover)}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:var(--c-surface);
  align-items:center;justify-content:center;color:var(--c-text-2);
}
.menu-toggle svg{width:22px;height:22px}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}

.cat-nav{border-top:1px solid var(--c-divider);background:var(--c-surface)}
.cat-nav-inner{
  display:flex;align-items:center;gap:10px;
  padding-top:10px;padding-bottom:10px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.cat-nav-inner::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;display:inline-flex;align-items:center;
  height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--c-text-2);
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-soft)}
.chip.is-active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);font-weight:600}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-divider)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding:12px 0}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-border)}
.crumb .cur{color:var(--c-text-2)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-primary-soft-2);border-bottom:1px solid var(--c-border)}
.cat-hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.18;
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
}
.cat-hero-inner{position:relative;padding:60px 24px 56px;max-width:900px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:rgba(255,255,255,.86);border:1px solid rgba(27,98,198,.18);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.cat-hero h1{
  font-size:clamp(26px,3.6vw,38px);font-weight:700;color:var(--c-text);
  margin-bottom:14px;letter-spacing:-.02em;
}
.cat-hero .lead{font-size:16px;color:var(--c-text-2);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:24px}
.trust-row{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:var(--c-text-2)}
.trust-row li{display:flex;align-items:center;gap:7px}
.trust-row svg{width:15px;height:15px;color:var(--c-accent);flex-shrink:0}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section.alt{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:12px}
.section-head p{color:var(--c-text-2);font-size:15px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- index list ---------- */
.index-list{
  display:grid;grid-template-columns:1fr 1fr;column-gap:56px;row-gap:0;
}
.index-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 0;border-bottom:1px solid var(--c-divider);
}
.index-item .num{
  flex-shrink:0;font-size:22px;font-weight:700;color:var(--c-primary);
  line-height:1.2;font-variant-numeric:tabular-nums;
  min-width:38px;letter-spacing:-.02em;
}
.index-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.index-item p{font-size:14px;color:var(--c-text-2);line-height:1.75}
.index-item .inline-link{color:var(--c-primary);font-weight:600;font-size:14px;border-bottom:1px solid rgba(27,98,198,.35)}
.index-item .inline-link:hover{color:var(--c-primary-hover);border-bottom-color:var(--c-primary-hover)}

/* ---------- sticky anchor nav ---------- */
.anchor-nav{
  position:sticky;top:0;z-index:50;
  background:var(--c-surface);
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);
  box-shadow:var(--shadow-1);
}
.anchor-inner{display:flex;align-items:center;gap:10px;padding-top:12px;padding-bottom:12px;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-label{font-size:13px;font-weight:600;color:var(--c-text-3);flex-shrink:0;margin-right:6px}
.anchor-inner a{
  flex-shrink:0;font-size:14px;color:var(--c-text-2);font-weight:500;
  padding:6px 14px;border-radius:999px;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.anchor-inner a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.anchor-inner a.is-current{background:var(--c-primary-soft);color:var(--c-primary);border-color:rgba(27,98,198,.18)}

/* ---------- asymmetric media block ---------- */
.media-split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.media-split h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:16px}
.media-split .desc{color:var(--c-text-2);font-size:15px;margin-bottom:24px}
.device-list{display:flex;flex-direction:column;gap:18px}
.device-list li{display:flex;gap:14px;align-items:flex-start}
.device-icon{
  flex-shrink:0;width:40px;height:40px;border-radius:11px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;
}
.device-icon svg{width:20px;height:20px}
.device-list h3{font-size:15px;font-weight:600;margin-bottom:4px}
.device-list p{font-size:14px;color:var(--c-text-2)}
.media-figure{
  border-radius:var(--r-xl);overflow:hidden;background:var(--c-primary-soft);
  border:1px solid var(--c-border);box-shadow:var(--shadow-2);position:relative;
}
.media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-figure figcaption{
  font-size:13px;color:var(--c-text-3);padding:12px 18px;background:var(--c-surface);
  border-top:1px solid var(--c-divider);
}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.check-card .tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-sm);padding:3px 10px;margin-bottom:14px;
}
.check-card h3{font-size:16px;font-weight:600;margin-bottom:8px}
.check-card p{font-size:14px;color:var(--c-text-2)}

/* ---------- stats ---------- */
.stats{background:var(--c-primary-soft-2);border-radius:var(--r-xl);padding:36px 32px;border:1px solid #D8E6FA}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:left}
.stat .num{
  font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--c-primary);
  line-height:1.15;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat .num.accent{color:var(--c-accent)}
.stat .label{font-size:14px;font-weight:600;color:var(--c-text);margin:8px 0 6px}
.stat .foot{font-size:12px;color:var(--c-text-3);line-height:1.6}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:first-child{border-top:1px solid var(--c-border)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:60px;padding:16px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q .sign{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-border);display:grid;place-items:center;
  color:var(--c-primary);transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.faq-q .sign svg{width:14px;height:14px}
.faq-item.is-open .faq-q .sign{transform:rotate(180deg);background:var(--c-primary-soft)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{font-size:15px;line-height:1.85;color:var(--c-text-2);padding:0 0 20px;max-width:720px}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-primary-soft-2);border-top:1px solid var(--c-border)}
.cta-split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:14px}
.cta-copy p{color:var(--c-text-2);font-size:15px;margin-bottom:22px;max-width:520px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2)}
.cta-points svg{width:17px;height:17px;color:var(--c-accent);flex-shrink:0;margin-top:5px}

.form-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--shadow-3);
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.form-card .form-note{font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:6px;font-weight:500}
.field input,.field select{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:var(--c-surface);outline:none;
  font-size:15px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15)}
.privacy{display:flex;gap:10px;align-items:flex-start;margin:4px 0 18px}
.privacy input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-primary);flex-shrink:0}
.privacy span{font-size:12px;color:var(--c-text-3);line-height:1.7}
.form-tip{font-size:13px;margin-top:12px;display:none}
.form-tip.ok{display:block;color:var(--c-accent)}
.form-tip.err{display:block;color:var(--c-danger)}

/* ---------- related ---------- */
.related{display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;margin-top:36px;padding-top:26px;border-top:1px solid var(--c-border)}
.related .rl-label{font-size:13px;font-weight:600;color:var(--c-text-3)}
.related a{font-size:14px;color:var(--c-primary);font-weight:500;border-bottom:1px solid rgba(27,98,198,.28);padding-bottom:2px}
.related a:hover{color:var(--c-primary-hover);border-bottom-color:var(--c-primary-hover)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-surface);border-top:1px solid var(--c-border);padding:56px 0 28px;margin-top:0}
.mobile-search{display:none;margin-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:16px;
}
.footer-brand .name{font-size:15px;font-weight:700}
.footer-text{font-size:13px;color:#7A8899;line-height:1.85;max-width:300px}
.footer-col h3{font-size:13px;color:var(--c-text-3);font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:#7A8899;transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-divider);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:#7A8899}
.footer-links{display:flex;gap:20px}
.footer-links a{font-size:13px;color:#7A8899}
.footer-links a:hover{color:var(--c-primary)}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);
  background:var(--c-surface);border:1px solid var(--c-border);border-left:3px solid var(--c-primary);
  border-radius:12px;box-shadow:var(--shadow-2);padding:12px 20px;font-size:14px;color:var(--c-text-2);
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease),transform .22s var(--ease);z-index:200;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .media-split,.cta-split{grid-template-columns:1fr;gap:32px}
  .index-list{column-gap:40px}
}
@media (max-width:991px){
  .header-main{flex-wrap:wrap;gap:14px 18px}
  .brand{flex:0 0 auto}
  .search-bar{order:3;flex:1 1 100%;max-width:none}
  .header-actions{margin-left:auto}
  .menu-toggle{display:inline-flex}
  .cat-nav{display:none}
  .cat-nav.open{display:block}
  .cat-nav-inner{flex-wrap:wrap;overflow:visible}
  .check-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  .index-list{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .cat-hero-inner{padding:44px 20px 40px}
  .section{padding:52px 0}
  .mobile-search{display:block}
  .cta-split{gap:26px}
  .form-card{padding:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-hero-inner{padding:36px 16px 34px}
  .section{padding:44px 0}
  .stats{padding:26px 20px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .btn{font-size:14px;padding:0 16px}
  .index-item .num{font-size:19px;min-width:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --c-primary:#1B62C6;
  --c-primary-hover:#14509E;
  --c-primary-soft:#E8F1FD;
  --c-primary-soft-2:#EAF2FE;
  --c-accent:#12B981;
  --c-accent-soft:#E6F8F1;
  --c-warm:#FF7A45;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4EBF3;
  --c-divider:#EFF3F8;
  --c-text:#10203A;
  --c-text-2:#55657C;
  --c-text-3:#8A98AB;
  --c-danger:#E5484D;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --r-badge:8px;
  --r-input:10px;
  --r-card:16px;
  --r-hero:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,80,.06),0 1px 3px rgba(16,42,80,.04);
  --sh-2:0 6px 16px rgba(16,42,80,.08);
  --sh-3:0 16px 40px rgba(16,42,80,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--c-primary-hover);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  position:sticky;top:0;z-index:60;
}
.header-main{
  display:flex;align-items:center;gap:20px;
  min-height:68px;padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;max-width:230px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#2E86E8);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{
  display:flex;flex-direction:column;
  font-size:14px;font-weight:700;line-height:1.25;color:var(--c-text);
  letter-spacing:-.01em;
}
.brand-text small{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:0;margin-top:2px;}
.search-bar{
  flex:1 1 auto;max-width:560px;min-width:0;
  display:flex;align-items:center;gap:8px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--r-pill);
  padding:4px 4px 4px 16px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-bar:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15);background:#fff;}
.search-icon{width:20px;height:20px;flex:0 0 20px;color:var(--c-text-3);}
.search-bar input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  height:40px;font-size:14px;color:var(--c-text);
}
.search-bar input::placeholder{color:var(--c-text-3);}
.search-bar input:focus{outline:none;}
.search-btn{
  flex:0 0 auto;height:40px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.search-btn:hover{background:var(--c-primary-hover);}
.search-btn:active{transform:translateY(1px);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-input);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-border);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:#CFE0F7;color:var(--c-primary-hover);}
.btn-warm{background:var(--c-warm);color:#fff;box-shadow:var(--sh-1);}
.btn-warm:hover{background:#F26A35;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:15px;font-weight:600;
}
.btn-text svg{width:16px;height:16px;transition:transform .18s var(--ease);}
.btn-text:hover svg{transform:translateX(2px);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-input);
  border:1px solid var(--c-border);background:#fff;align-items:center;justify-content:center;
}
.menu-toggle svg{width:22px;height:22px;color:var(--c-text);}
.cat-nav{border-top:1px solid var(--c-divider);background:var(--c-surface);}
.cat-nav-inner{
  display:flex;align-items:center;gap:10px;
  padding-top:10px;padding-bottom:10px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.cat-nav-inner::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;height:36px;padding:0 16px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;
  background:#fff;border:1px solid var(--c-border);
  color:var(--c-text-2);font-size:14px;font-weight:500;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#CFE0F7;}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.chip.is-active:hover{background:var(--c-primary-hover);color:#fff;}

/* ---------- breadcrumb ---------- */
.crumb-wrap{background:var(--c-surface);border-bottom:1px solid var(--c-divider);}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding:12px 0;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C6D2E1;}
.crumb .current{color:var(--c-text);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--c-border);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(245,248,252,.97) 0%,rgba(245,248,252,.92) 42%,rgba(245,248,252,.55) 72%,rgba(245,248,252,.15) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.hero-inner{padding:64px 0 60px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary);
  border-radius:var(--r-pill);padding:6px 14px;
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.page-hero h1{
  font-size:clamp(26px,3.6vw,40px);line-height:1.28;font-weight:700;
  letter-spacing:-.01em;color:var(--c-text);
}
.page-hero .hero-sub{
  margin-top:16px;font-size:16px;line-height:1.8;color:var(--c-text-2);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13px;color:var(--c-text-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta svg{width:15px;height:15px;color:var(--c-accent);}

/* ---------- layout ---------- */
.page-body{padding:64px 0 72px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.section-head{margin-bottom:26px;}
.section-head h2{
  font-size:clamp(21px,2.2vw,26px);font-weight:700;letter-spacing:-.01em;line-height:1.4;
}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:640px;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:52px;}
.timeline::before{
  content:"";position:absolute;left:17px;top:12px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,#A9C9F0 72%,rgba(169,201,240,0) 100%);
  border-radius:2px;
}
.tl-step{position:relative;margin-bottom:20px;}
.tl-step:last-child{margin-bottom:0;}
.tl-step .num{
  position:absolute;left:-52px;top:6px;
  width:36px;height:36px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);
  color:var(--c-primary);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;box-shadow:var(--sh-1);
}
.tl-step.is-key .num{background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.tl-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.tl-card h3{font-size:18px;font-weight:700;line-height:1.5;letter-spacing:-.01em;}
.tl-card .tl-lead{margin-top:8px;font-size:15px;color:var(--c-text-2);}
.tl-card ul{margin-top:12px;display:grid;gap:8px;}
.tl-card li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--c-text-2);line-height:1.75;
}
.tl-card li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);opacity:.75;
}
.tl-figure{
  margin-top:6px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-surface);box-shadow:var(--sh-1);
}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.tl-figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-divider);
}

/* ---------- data strip ---------- */
.data-strip{
  margin-top:36px;background:var(--c-primary-soft-2);
  border:1px solid #D8E6FA;border-radius:var(--r-card);
  padding:26px 24px;
}
.data-strip h2{font-size:18px;font-weight:700;margin-bottom:18px;}
.data-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.data-item .v{
  font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.1;
  color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.data-item .v.accent{color:var(--c-accent);}
.data-item .l{margin-top:8px;font-size:14px;color:var(--c-text);font-weight:600;}
.data-item .f{margin-top:4px;font-size:12px;color:var(--c-text-3);line-height:1.6;}

/* ---------- aside ---------- */
.aside-sticky{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-2);
}
.side-card h3{font-size:16px;font-weight:700;line-height:1.5;}
.side-card p.desc{margin-top:8px;font-size:13.5px;color:var(--c-text-2);}
.field{margin-top:14px;display:grid;gap:6px;}
.field label{font-size:13px;color:var(--c-text-2);font-weight:500;}
.field input{
  height:44px;border-radius:var(--r-input);border:1px solid var(--c-border);
  background:#fff;padding:0 14px;font-size:14px;width:100%;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,198,.15);}
.field input::placeholder{color:var(--c-text-3);}
.consent{
  display:flex;gap:8px;align-items:flex-start;margin-top:14px;
  font-size:12px;line-height:1.65;color:var(--c-text-3);
}
.consent input{width:15px;height:15px;margin-top:3px;flex:0 0 15px;accent-color:var(--c-primary);}
.side-card .btn{width:100%;margin-top:16px;}
.side-note{margin-top:10px;font-size:12px;color:var(--c-text-3);text-align:center;}
.side-list{display:grid;gap:0;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;border-bottom:1px solid var(--c-divider);
  font-size:14px;color:var(--c-text-2);
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--c-primary);}
.side-list a span.arw{color:var(--c-text-3);font-size:16px;transition:transform .18s var(--ease);}
.side-list a:hover span.arw{transform:translateX(2px);color:var(--c-primary);}

/* ---------- faq ---------- */
.faq-block{margin-top:56px;}
.faq-list{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--c-divider);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;min-height:56px;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
  transition:background .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--c-primary-soft);}
.faq-item summary .plus{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:600;
  transition:transform .2s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.faq-answer p + p{margin-top:10px;}

/* ---------- related + cta ---------- */
.related{margin-top:56px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rel-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.rel-card .badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;
}
.rel-card h3{margin-top:12px;font-size:16px;font-weight:700;line-height:1.55;}
.rel-card p{margin-top:8px;font-size:13.5px;color:var(--c-text-2);}
.rel-card .go{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary);}
.rel-card .go svg{width:14px;height:14px;transition:transform .18s var(--ease);}
.rel-card:hover .go svg{transform:translateX(2px);}

.cta-band{
  margin-top:64px;border-radius:var(--r-hero);overflow:hidden;position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--c-border);
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(27,98,198,.94) 0%,rgba(27,98,198,.82) 58%,rgba(18,185,129,.72) 100%);}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:38px 40px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.3vw,26px);font-weight:700;line-height:1.4;letter-spacing:-.01em;}
.cta-inner p{color:rgba(255,255,255,.88);font-size:14.5px;margin-top:8px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-white{background:#fff;color:var(--c-primary);}
.cta-actions .btn-white:hover{background:#EAF2FE;color:var(--c-primary-hover);transform:translateY(-1px);}
.cta-actions .btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:#0F1D33;color:#9FB0C9;margin-top:0;padding:52px 0 24px;}
.mobile-search{display:none;margin-bottom:26px;}
.site-footer .search-bar{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);max-width:none;}
.site-footer .search-bar input{color:#fff;}
.site-footer .search-bar input::placeholder{color:#7C8CA5;}
.site-footer .search-icon{color:#7C8CA5;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--c-primary),#2E86E8);
  color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:17px;
}
.footer-brand .name{color:#fff;font-size:15px;font-weight:700;letter-spacing:-.01em;}
.footer-text{margin-top:14px;font-size:13px;line-height:1.85;color:#8A9AB3;max-width:340px;}
.footer-col h3{font-size:13px;font-weight:600;color:#7A8899;margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13px;color:#9FB0C9;}
.footer-col a:hover{color:#7FB2F2;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#7A8899;}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:#7A8899;}
.footer-links a:hover{color:#7FB2F2;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:26px;}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
}
@media (max-width:991px){
  .header-main{flex-wrap:wrap;}
  .search-bar{order:3;flex:1 1 100%;max-width:none;}
  .menu-toggle{display:inline-flex;}
  .cat-nav-inner{display:none;}
  .cat-nav.is-open .cat-nav-inner{display:flex;flex-wrap:wrap;overflow:visible;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .aside-sticky{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-body{padding:52px 0 60px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .hero-inner{padding:52px 0 48px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .brand{max-width:none;}
  .brand-text{font-size:13px;}
  .brand-text small{font-size:11px;}
  .header-actions .btn{display:none;}
  .page-hero{background-position:center;}
  .page-hero::before{background:linear-gradient(180deg,rgba(245,248,252,.98) 0%,rgba(245,248,252,.9) 60%,rgba(245,248,252,.86) 100%);}
  .timeline{padding-left:44px;}
  .timeline::before{left:15px;}
  .tl-step .num{left:-44px;width:32px;height:32px;font-size:14px;}
  .tl-card{padding:18px;}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{padding:28px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .mobile-search{display:block;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-text{width:100%;justify-content:flex-start;}
}
@media (max-width:519px){
  body{font-size:16px;}
  .page-body{padding:40px 0 48px;}
  .data-strip{padding:20px 16px;}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .tl-card h3{font-size:17px;}
  .faq-item summary{padding:16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px;}
  .side-card{padding:18px;}
  .cta-inner h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}