/* roulang page: index */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --tint:#EAF2F8;
  --line-soft:#CFE0EC;
  --ink:#1B2A36;
  --ink-2:#5C6E7C;
  --ink-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-btn:10px;
  --radius-dock:20px;
  --shadow-card:0 2px 8px rgba(18,54,84,.06);
  --shadow-card-hover:0 12px 28px rgba(18,54,84,.12);
  --shadow-dock:0 10px 30px rgba(18,54,84,.10);
  --container:1200px;
  --section-pad:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--ink);line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(23,96,143,.28);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad) 0}
.section-tight{padding:56px 0}
.section-alt{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;line-height:36px}
.section-head .section-sub{margin-top:10px;font-size:15px;color:var(--ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.text-link svg{transition:transform .2s ease}
.text-link:hover svg{transform:translateX(3px)}

/* ===== Dock 导航 ===== */
.site-dock{position:fixed;top:16px;left:0;right:0;z-index:120;padding:0 20px;transition:top .25s ease}
.dock-inner{
  max-width:1120px;margin:0 auto;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-dock);box-shadow:var(--shadow-dock);
  display:flex;align-items:center;gap:16px;padding:10px 14px 10px 18px;
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-dock.is-scrolled{top:10px}
.site-dock.is-scrolled .dock-inner{box-shadow:0 14px 36px rgba(18,54,84,.16)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.logo-mark{width:28px;height:28px;border-radius:9px;background:var(--brand);display:grid;place-items:center;color:#fff;flex:0 0 auto}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--tint);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--brand)}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:#fff;
  display:grid;place-items:center;color:var(--ink-2);transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-soft);background:var(--tint)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;place-items:center;color:var(--ink)}
.menu-toggle:hover{background:var(--tint);color:var(--brand)}
.dock-mobile{
  max-width:1120px;margin:10px auto 0;background:#fff;border:1px solid var(--border);
  border-radius:18px;box-shadow:var(--shadow-dock);padding:10px;display:none;
}
.dock-mobile.is-open{display:block;animation:fadeDown .22s ease}
@keyframes fadeDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.dock-mobile a.m-link{display:flex;align-items:center;height:44px;padding:0 14px;border-radius:12px;color:var(--ink-2);font-size:15px}
.dock-mobile a.m-link:hover,.dock-mobile a.m-link.is-active{background:var(--tint);color:var(--brand);font-weight:600}
.dock-mobile .m-cta{margin-top:8px;padding:0 10px 6px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s ease;text-align:center;white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line-soft)}
.btn-ghost:hover{background:var(--tint);color:var(--brand-dark);border-color:var(--brand)}
.btn-blue{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-blue:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-pill{border-radius:999px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ===== 徽章 / 标签 ===== */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--tint);color:var(--brand);font-size:14px;font-weight:500}
.badge-accent{background:rgba(232,135,58,.12);color:var(--accent-dark)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--tint);color:var(--brand);font-size:14px;font-weight:500;margin-bottom:20px}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ===== Hero ===== */
.hero{padding:150px 0 72px;background:#fff;position:relative;overflow:hidden}
.hero-copy{position:relative;z-index:2}
.hero-title{font-size:40px;line-height:48px;font-weight:700;letter-spacing:.5px}
.hero-title .accent{color:var(--brand)}
.hero-lead{margin-top:20px;font-size:18px;line-height:30px;color:var(--ink-2);max-width:520px;letter-spacing:0}
.hero-points{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-2)}
.hero-points svg{color:var(--brand);flex:0 0 auto}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 18px 44px rgba(18,54,84,.14);background:var(--tint)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;width:340px;height:340px;right:-110px;top:-110px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,96,143,.08),rgba(23,96,143,0) 68%);
}

/* ===== 数据条 ===== */
.stat-bar{background:var(--tint);border-radius:var(--radius-card);padding:28px 8px;display:flex;flex-wrap:wrap}
.stat-item{flex:1 1 220px;padding:6px 28px;position:relative;text-align:center}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line-soft)}
.stat-num{font-family:"Inter",sans-serif;font-size:30px;line-height:36px;font-weight:700;color:var(--brand)}
.stat-label{margin-top:6px;font-size:14px;color:var(--ink-2)}

/* ===== 合集目录 ===== */
.catalog-aside{position:sticky;top:120px}
.catalog-aside h2{font-size:30px;line-height:36px}
.catalog-aside p{margin-top:14px;font-size:15px;line-height:26px;color:var(--ink-2);max-width:300px}
.catalog-aside .text-link{margin-top:18px}
.catalog-list{display:flex;flex-direction:column;gap:14px}
.catalog-card{
  position:relative;display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.catalog-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .22s ease;
}
.catalog-card:hover{transform:translate(-3px,-3px);box-shadow:var(--shadow-card-hover);border-color:var(--line-soft)}
.catalog-card:hover::before{opacity:1}
.catalog-index{font-family:"Inter",sans-serif;font-size:20px;font-weight:700;color:var(--line-soft);flex:0 0 auto;width:38px}
.catalog-body{flex:1 1 auto;min-width:0}
.catalog-body h3{font-size:19px;font-weight:600;color:var(--ink)}
.catalog-body p{margin-top:6px;font-size:14px;line-height:24px;color:var(--ink-2)}
.catalog-side{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.catalog-arrow{color:var(--brand);transition:transform .22s ease}
.catalog-card:hover .catalog-arrow{transform:translateX(4px)}

/* ===== 精选条目 ===== */
.feature-large{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-large:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--line-soft)}
.feature-large img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-large .fl-body{padding:26px}
.feature-large h3{margin-top:14px;font-size:22px;line-height:30px;font-weight:600;color:var(--ink)}
.feature-large p{margin-top:12px;font-size:15px;line-height:26px;color:var(--ink-2)}
.feature-large .fl-meta{margin-top:18px;display:flex;align-items:center;gap:14px;font-size:14px;color:var(--ink-3)}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;height:100%}
.mini-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:18px;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:10px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--line-soft)}
.mini-card .mini-icon{width:36px;height:36px;border-radius:10px;background:var(--tint);color:var(--brand);display:grid;place-items:center}
.mini-card h3{font-size:16px;font-weight:600;color:var(--ink)}
.mini-card p{font-size:13px;line-height:22px;color:var(--ink-2)}

/* ===== 内容卡片（CMS 列表） ===== */
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--line-soft)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);margin-bottom:18px}
.card-title{font-size:18px;font-weight:600;line-height:28px;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:56px}
.card:hover .card-title{color:var(--brand)}
.card-excerpt{margin-top:10px;font-size:14px;line-height:24px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.card-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3)}
.card-foot .arrow{margin-left:auto;color:var(--brand);transition:transform .22s ease}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ===== 空态 ===== */
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line-soft);border-radius:var(--radius-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:36px 24px;text-align:center;
}
.empty-state .empty-icon{width:48px;height:48px;border-radius:50%;background:var(--tint);color:var(--brand);display:grid;place-items:center}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ===== 相关推荐 ===== */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  height:36px;padding:0 18px;border-radius:999px;border:1px solid var(--border);background:#fff;
  color:var(--ink-2);font-size:14px;display:inline-flex;align-items:center;transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.rec-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);height:100%;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--line-soft)}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rec-card .rec-body{padding:18px}
.rec-card h3{font-size:16px;font-weight:600;line-height:25px;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card p{margin-top:8px;font-size:13px;line-height:22px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card.is-hidden{display:none}

/* ===== CTA 带 ===== */
.cta-band{
  background:var(--tint);border-radius:20px;padding:36px 40px;display:flex;align-items:center;
  gap:32px;flex-wrap:wrap;border:1px solid var(--line-soft);
}
.cta-band h2{font-size:24px;line-height:32px}
.cta-band p{margin-top:8px;font-size:15px;color:var(--ink-2)}
.cta-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.round-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line-soft);background:#fff;
  display:grid;place-items:center;color:var(--brand);transition:all .2s ease;
}
.round-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px)}

/* ===== FAQ ===== */
.faq-aside{position:sticky;top:120px}
.faq-aside h2{font-size:30px;line-height:36px}
.faq-aside p{margin-top:14px;font-size:15px;line-height:26px;color:var(--ink-2);max-width:300px}
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion .accordion-item:hover{border-color:var(--line-soft);box-shadow:var(--shadow-card)}
.accordion .accordion-title{
  padding:20px 62px 20px 22px;font-size:17px;font-weight:600;color:var(--ink);border:0;line-height:26px;
}
.accordion .accordion-title::before{
  content:"";position:absolute;top:50%;right:18px;left:auto;margin-top:-13px;
  width:26px;height:26px;border-radius:50%;background:var(--tint);
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:12px 2px,2px 12px;background-position:center,center;background-repeat:no-repeat;
  transition:transform .2s ease;
}
.accordion .accordion-title[aria-expanded="true"]::before{
  background-image:linear-gradient(var(--brand),var(--brand));
  background-size:12px 2px;transform:rotate(180deg);
}
.accordion .accordion-content{padding:0 22px 22px;font-size:15px;line-height:28px;color:var(--ink-2);border:0;background:transparent}

/* ===== 表单 ===== */
.subscribe{
  background:#fff;border:1px solid var(--border);border-radius:20px;padding:36px 40px;
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;box-shadow:var(--shadow-card);
}
.subscribe .sub-copy{flex:1 1 320px}
.subscribe h2{font-size:24px;line-height:32px}
.subscribe p{margin-top:8px;font-size:15px;color:var(--ink-2)}
.inline-form{display:flex;gap:12px;flex:1 1 380px;min-width:280px}
.inline-form input{
  flex:1 1 auto;height:48px;padding:0 16px;border-radius:var(--radius-input);border:1px solid var(--border);
  background:#fff;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.inline-form input::placeholder{color:var(--ink-3)}
.inline-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,143,.14)}
.form-note{margin-top:12px;font-size:13px;color:var(--ink-3);flex:1 1 100%}
.form-msg{font-size:13px;color:var(--accent-dark);display:none;flex:1 1 100%}
.form-msg.is-show{display:block}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:var(--section-pad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;letter-spacing:.5px;margin-bottom:18px}
.site-footer p{font-size:14px;line-height:26px;color:rgba(255,255,255,.72)}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-brand .footer-logo .logo-mark{background:rgba(255,255,255,.14)}
.footer-links li{margin-bottom:12px}
.footer-links a{position:relative;font-size:14px;color:rgba(255,255,255,.8)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--accent);transition:width .2s ease}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .sep{color:rgba(255,255,255,.28)}
.to-top{margin-left:auto;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;transition:all .2s ease}
.to-top:hover{background:var(--accent);border-color:var(--accent)}

/* ===== 响应式 ===== */
@media (max-width:1439px){
  :root{--container:1200px}
}
@media (max-width:1200px){
  .dock-nav{gap:0}
  .nav-link{padding:0 9px;font-size:14px}
  .logo-text{font-size:15px}
}
@media (max-width:1023px){
  :root{--section-pad:64px}
  .dock-nav{display:none}
  .dock-actions .icon-btn{display:none}
  .dock-actions .btn{display:none}
  .menu-toggle{display:grid}
  .dock-inner{padding:8px 12px 8px 16px;min-height:56px}
  .hero{padding:118px 0 56px}
  .hero-title{font-size:32px;line-height:42px}
  .hero-media{margin-top:36px}
  .catalog-aside,.faq-aside{position:static}
  .mini-grid{grid-template-columns:1fr 1fr;margin-top:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feature-large img{aspect-ratio:16/9}
}
@media (max-width:767px){
  :root{--section-pad:48px}
  .container{padding:0 20px}
  .hero{padding:104px 0 48px}
  .hero-title{font-size:28px;line-height:38px}
  .hero-lead{font-size:16px;line-height:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .stat-bar{padding:20px 4px}
  .stat-item{flex:1 1 100%;padding:14px 20px}
  .stat-item + .stat-item::before{left:8%;right:8%;top:0;height:1px;width:auto}
  .mini-grid{grid-template-columns:1fr}
  .catalog-card{padding:18px;gap:14px}
  .catalog-side .badge{display:none}
  .cta-band{padding:26px 22px}
  .cta-actions{margin-left:0;width:100%}
  .subscribe{padding:26px 22px}
  .inline-form{flex-direction:column}
  .inline-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .chip{flex:0 0 auto}
}
@media (max-width:520px){
  .hero-media img{aspect-ratio:4/3}
  .logo-text{font-size:14px;letter-spacing:0}
  .logo-mark{width:24px;height:24px}
  .btn{padding:12px 20px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --blue-50:#EAF2F8;
  --blue-100:#CFE0EC;
  --text:#1B2A36;
  --text-2:#5C6E7C;
  --text-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --white:#FFFFFF;
  --footer:#10293B;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-dock:20px;
  --sh-card:0 2px 8px rgba(18,54,84,.06);
  --sh-hover:0 12px 28px rgba(18,54,84,.12);
  --sh-dock:0 10px 30px rgba(18,54,84,.10);
  --container:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font-family:inherit;font-size:inherit;line-height:inherit;margin:0}
button{background:none;border:0;padding:0;cursor:pointer;color:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;letter-spacing:.5px;color:var(--text);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  :root{--container:1280px}
}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:120;
  display:flex;
  justify-content:center;
  padding:0 24px;
  pointer-events:none;
  transition:top .25s ease;
}
.dock-wrap.is-scrolled{top:10px}
.dock{
  pointer-events:auto;
  width:100%;
  max-width:1120px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 14px 10px 18px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-dock);
  transition:box-shadow .25s ease;
}
.dock-wrap.is-scrolled .dock{box-shadow:0 14px 34px rgba(18,54,84,.16)}
.dock-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
  letter-spacing:.4px;
}
.dock-logo:hover{color:var(--brand)}
.logo-mark{
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.dock-nav{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:2px;
}
.nav-link{
  position:relative;
  padding:9px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--blue-50);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;
  height:38px;
  border-radius:10px;
  border:1px solid var(--border);
  background:var(--white);
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--blue-50);color:var(--brand);border-color:var(--blue-100)}
.dock-toggle{display:none}

/* 移动端抽屉 */
.mobile-panel{
  position:fixed;
  top:84px;
  left:16px;
  right:16px;
  z-index:119;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--sh-hover);
  padding:12px;
  display:none;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
}
.mobile-panel a:hover{background:var(--blue-50);color:var(--brand)}
.mobile-panel a.is-active{color:var(--brand);background:var(--blue-50);font-weight:600}
.mobile-panel .btn{margin-top:10px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(232,135,58,.35)}
.btn-ghost{background:var(--white);color:var(--brand);border-color:var(--blue-100)}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--brand);color:var(--brand-dark)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,96,143,.18)}
.btn-pill{border-radius:999px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 主体 ---------- */
.site-main{padding-top:104px}
.section{padding:64px 0}
.section-head{margin-bottom:28px}
.section-head h2{font-size:26px;line-height:1.35}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2)}

/* 分类页头 */
.cat-hero{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  min-height:260px;
  display:flex;
  align-items:flex-end;
  background-color:#0d2c42;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(9,33,50,.86) 0%,rgba(9,33,50,.62) 55%,rgba(9,33,50,.38) 100%);
}
.cat-hero-inner{position:relative;z-index:2;width:100%;padding:34px 40px 40px}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:14px;
}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:#fff;font-weight:600}
.cat-hero h1{
  font-size:clamp(26px,3vw,36px);
  line-height:1.3;
  color:#fff;
  max-width:820px;
  letter-spacing:.5px;
}
.cat-hero .hero-lead{
  margin-top:12px;
  font-size:16px;
  color:rgba(255,255,255,.86);
  max-width:620px;
  line-height:1.8;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.hero-chip{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:#fff;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.22);
}

/* 侧栏目录 */
.toc-card{
  position:sticky;
  top:104px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:24px;
}
.toc-card h2{font-size:15px;font-weight:600;letter-spacing:.4px}
.toc-card .toc-sub{font-size:13px;color:var(--text-3);margin-top:6px}
.toc-list{margin-top:16px}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--blue-50);color:var(--brand)}
.toc-list a.is-current{background:var(--blue-50);color:var(--brand);font-weight:600}
.quick-card{
  margin-top:20px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:24px;
}
.quick-card h3{font-size:16px;font-weight:600}
.quick-card p{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.8}
.quick-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}

/* 长文 */
.article-body{max-width:100%}
.article-body h2{
  position:relative;
  padding-left:14px;
  font-size:24px;
  line-height:1.4;
  margin:44px 0 16px;
}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:7px;
  bottom:7px;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.article-body h3{font-size:19px;margin:26px 0 10px}
.article-body p{font-size:16px;line-height:1.9;color:var(--text-2);margin-bottom:18px}
.article-body strong{color:var(--text)}

.step-list{display:grid;gap:16px;margin:26px 0 30px}
.step-card{
  display:flex;
  gap:18px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--blue-100)}
.step-num{
  flex:0 0 auto;
  width:42px;
  height:42px;
  border-radius:12px;
  background:rgba(232,135,58,.12);
  color:var(--accent-dark);
  font-family:var(--font-num);
  font-weight:700;
  font-size:16px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.step-card h3{margin:0 0 6px;font-size:17px}
.step-card p{margin:0;font-size:14px;line-height:1.85;color:var(--text-2)}

.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:26px 0 30px}
.compare-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-card);
}
.compare-card.is-safe{box-shadow:inset 0 3px 0 var(--brand),var(--sh-card)}
.compare-card.is-risk{box-shadow:inset 0 3px 0 var(--accent),var(--sh-card)}
.compare-card h3{font-size:16px;margin-bottom:12px}
.list-dot li{
  position:relative;
  padding-left:18px;
  margin-bottom:10px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
}
.list-dot li:last-child{margin-bottom:0}
.list-dot li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}

.issue-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-img);
  padding:20px 22px;
  margin-bottom:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.issue-item:hover{border-color:var(--blue-100);box-shadow:var(--sh-card)}
.issue-item h3{font-size:16px;margin:0 0 8px}
.issue-item p{margin:0;font-size:14px;line-height:1.85;color:var(--text-2)}

.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 8px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:7px 14px;
  border-radius:999px;
  font-size:14px;
  background:var(--blue-50);
  color:var(--brand);
  border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--blue-100)}
.tag-accent{background:rgba(232,135,58,.12);color:var(--accent-dark)}
.tag-accent:hover{background:rgba(232,135,58,.2)}

.article-figure{margin:26px 0}
.article-figure img{border-radius:var(--r-img);width:100%;background:var(--blue-50)}
.article-figure figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  line-height:1.7;
}

.notice-block{
  background:var(--blue-50);
  border-radius:var(--r-img);
  padding:18px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--brand-dark);
  margin:24px 0;
}

/* 相关分类 */
.rel-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.rel-card{
  display:block;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-card);
  color:var(--text);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--blue-100);color:var(--text)}
.rel-idx{font-family:var(--font-num);font-size:13px;color:var(--text-3);letter-spacing:1px}
.rel-card h3{font-size:17px;margin:10px 0 8px}
.rel-card p{font-size:13px;line-height:1.8;color:var(--text-2)}
.rel-card.is-current{background:var(--blue-50);border-color:var(--blue-100)}
.rel-badge{
  display:inline-flex;
  margin-top:14px;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  background:var(--blue-100);
  color:var(--brand);
}

/* CTA 带 */
.cta-band{
  background:var(--blue-50);
  border-radius:20px;
  padding:36px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:520px;line-height:1.85}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.star-btn{
  width:48px;
  height:48px;
  border-radius:50%;
  border:1px solid var(--blue-100);
  background:var(--white);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.star-btn:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--r-img);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--blue-100)}
.faq-item.is-open{border-color:var(--blue-100);box-shadow:var(--sh-card)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  min-height:44px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--blue-100);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  line-height:1;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--text-2)}
.faq-item.is-open .faq-a{display:block}

/* 表单 */
.subscribe-form{
  display:flex;
  gap:12px;
  align-items:center;
  max-width:640px;
  margin-top:22px;
}
.field-label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-input);
  border:1px solid var(--border);
  background:var(--white);
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:var(--text-3)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,143,.14)}
.form-field{flex:1 1 auto}

/* 页脚 */
.site-footer{
  background:var(--footer);
  color:rgba(255,255,255,.8);
  margin-top:88px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:#fff;
  letter-spacing:.4px;
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:320px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-links li{margin-bottom:10px}
.footer-links a{
  position:relative;
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.75);
  padding-bottom:2px;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.site-footer a{color:rgba(255,255,255,.78)}
.site-footer a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.sep{opacity:.4}
.to-top{
  margin-left:auto;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.to-top:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock{height:56px;padding:0 12px;gap:10px}
  .dock-nav{display:none}
  .dock-search{display:none}
  .dock .dock-cta{display:none}
  .dock-toggle{display:inline-flex}
  .dock-logo{font-size:14px}
  .dock-logo .logo-text{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .site-main{padding-top:96px}
  .section{padding:56px 0}
  .cat-hero{min-height:220px}
  .cat-hero-inner{padding:28px 28px 32px}
  .cat-hero .hero-lead{font-size:15px}
  .toc-card{position:static;margin-bottom:24px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px;padding-top:48px}
  .cta-band{padding:28px 28px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .dock-wrap{padding:0 16px;top:12px}
  .dock-wrap.is-scrolled{top:8px}
  .dock-logo{font-size:13px}
  .dock-logo .logo-text{max-width:150px}
  .mobile-panel{top:76px;left:12px;right:12px}
  .section{padding:48px 0}
  .cat-hero{min-height:180px;border-radius:16px}
  .cat-hero-inner{padding:22px 20px 26px}
  .cat-hero h1{font-size:22px}
  .cat-hero .hero-lead{font-size:14px;margin-top:10px}
  .hero-chip{font-size:12px;padding:5px 12px}
  .article-body h2{font-size:20px;margin:34px 0 14px}
  .article-body h3{font-size:17px}
  .article-body p{font-size:15px;line-height:1.85}
  .step-card{padding:18px 18px;gap:14px}
  .step-num{width:36px;height:36px;border-radius:10px;font-size:15px}
  .compare-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:24px 20px;border-radius:16px}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .star-btn{width:44px;height:44px}
  .subscribe-form{flex-direction:column;align-items:stretch}
  .subscribe-form .btn{width:100%}
  .toc-card,.quick-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:48px;padding-top:40px}
  .footer-bottom{margin-top:32px;gap:8px}
  .to-top{margin-left:0}
}

/* roulang page: article */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --brand-50:#EAF2F8;
  --brand-100:#CFE0EC;
  --text:#1B2A36;
  --text-2:#5C6E7C;
  --text-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-sm:0 2px 8px rgba(18,54,84,.06);
  --shadow-md:0 12px 28px rgba(18,54,84,.12);
  --shadow-dock:0 10px 30px rgba(18,54,84,.10);
  --container:1200px;
  --gutter:24px;
  --section-y:88px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0}
input{font:inherit}
:focus-visible{outline:3px solid rgba(23,96,143,.28);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section-y) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:.5px}
.section-head p{margin-top:8px;color:var(--text-2);font-size:15px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;white-space:nowrap}
.text-link i,.text-link svg{transition:transform .22s ease}
.text-link:hover i,.text-link:hover svg{transform:translateX(3px)}

/* ============ Dock 导航 ============ */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:90;display:flex;justify-content:center;padding:0 20px;transition:top .28s ease}
.dock-wrap.is-scrolled{top:10px}
.dock{
  position:relative;width:100%;max-width:1120px;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-dock);display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 18px;transition:box-shadow .28s ease;
}
.dock-wrap.is-scrolled .dock{box-shadow:0 14px 34px rgba(18,54,84,.16)}
.dock-logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.logo-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:var(--radius-xs);font-size:15px;color:var(--text-2);transition:background .2s ease,color .2s ease}
.nav-link:hover{background:var(--brand-50);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--brand)}
.dock-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease}
.icon-btn:hover{color:var(--brand);background:var(--brand-50);border-color:var(--brand-100)}
.hamburger{display:none;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff;color:var(--text);align-items:center;justify-content:center}
.mobile-panel{display:none;position:absolute;top:66px;left:20px;right:20px;background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-md);padding:10px;flex-direction:column;gap:2px}
.mobile-panel.is-open{display:flex}
.panel-link{display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:var(--radius-sm);color:var(--text-2);font-size:15px}
.panel-link:hover{background:var(--brand-50);color:var(--brand)}
.panel-link.is-active{background:var(--brand-50);color:var(--brand);font-weight:600}
.mobile-panel .btn{margin-top:8px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-xs);border:1px solid transparent;font-size:15px;font-weight:600;transition:all .22s ease}
.btn-accent{background:var(--accent);color:#fff;border-radius:999px}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(232,135,58,.28)}
.btn-accent:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-outline:hover{background:var(--brand-50);border-color:var(--brand)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--brand-50);color:var(--brand);font-size:14px;font-weight:500}
.badge-accent{background:#FDF0E4;color:var(--accent-dark)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;background:var(--brand-50);color:var(--brand);font-size:14px;transition:all .2s ease}
.chip:hover{background:var(--brand-100);transform:translateY(-1px)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);min-width:0}
.breadcrumb a{color:var(--text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--brand-100)}
.breadcrumb .current{color:var(--brand);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;display:inline-block;vertical-align:bottom}

/* ============ 文章页头 ============ */
.page-top{padding-top:118px}
.article-head{background:#fff;border-bottom:1px solid var(--border);padding:34px 0 34px}
.article-head .badge{margin:18px 0 14px}
.article-head h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:.5px;max-width:900px}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:14px;color:var(--text-2)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--brand-100)}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-round{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease}
.share-round:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.article-cover{margin-top:34px}
.article-cover figure{margin:0;border-radius:var(--radius);overflow:hidden;background:var(--brand-50);aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:56px 0 0;align-items:start}
.article-main{min-width:0}
.article-content{max-width:760px;font-size:17px;line-height:2;color:var(--text);word-break:break-word}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 20px}
.article-content h2{position:relative;margin:40px 0 16px;padding-left:14px;font-size:24px;line-height:1.45;font-weight:700;letter-spacing:.5px;scroll-margin-top:110px}
.article-content h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand)}
.article-content h3{margin:28px 0 12px;font-size:20px;line-height:1.5;font-weight:600;scroll-margin-top:110px}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:24px}
.article-content li{margin-bottom:8px}
.article-content ul li::marker{color:var(--accent)}
.article-content ol li::marker{color:var(--accent);font-weight:600}
.article-content blockquote{margin:24px 0;padding:18px 22px;background:var(--brand-50);border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);font-size:16px;line-height:1.9}
.article-content img{border-radius:var(--radius-sm);margin:24px auto}
.article-content figure{margin:24px 0}
.article-content figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--brand-dark)}
.article-content table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;font-size:15px;line-height:1.7;margin:24px 0;background:#fff}
.article-content thead th{background:var(--brand-50);color:var(--brand-dark);font-weight:600}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
.article-content tbody tr:nth-child(even){background:#FBFDFE}
.article-content tbody tr:last-child td{border-bottom:0}
.article-content pre{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.8;font-family:"Inter",ui-monospace,Menlo,Consolas,monospace}
.article-content code{font-family:"Inter",ui-monospace,Menlo,Consolas,monospace;font-size:14px;background:var(--brand-50);color:var(--brand-dark);padding:2px 6px;border-radius:6px}
.article-content pre code{background:none;color:inherit;padding:0}
.article-content hr{border:0;height:1px;background:var(--border);margin:36px 0}
.empty-state{min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;background:#fff;border:1px dashed var(--brand-100);border-radius:var(--radius);padding:36px 24px;color:var(--text-2)}
.empty-state .empty-icon{width:52px;height:52px;border-radius:50%;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center}

/* ============ 侧栏 ============ */
.article-side{min-width:0}
.side-sticky{position:sticky;top:106px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.side-card h3{font-size:16px;font-weight:700;letter-spacing:.5px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand)}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px}
.toc-list li{margin-bottom:4px}
.toc-list a{display:block;padding:7px 10px;border-radius:8px;border-left:2px solid transparent;color:var(--text-2);transition:all .2s ease;line-height:1.6}
.toc-list a:hover{background:var(--brand-50);color:var(--brand)}
.toc-list a.is-sub{padding-left:24px;font-size:13px;color:var(--text-3)}
.toc-list a.is-current{background:var(--brand-50);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
.toc-empty{color:var(--text-3);font-size:13px;padding:6px 10px;line-height:1.7}
.save-card{text-align:left}
.save-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.save-actions{display:flex;align-items:center;gap:10px}
.mini-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.mini-list li + li{border-top:1px solid var(--border)}
.mini-list a{display:flex;gap:12px;padding:12px 0;transition:color .2s ease}
.mini-list a:hover .mini-title{color:var(--brand)}
.mini-thumb{width:64px;height:48px;flex:0 0 64px;border-radius:var(--radius-xs);overflow:hidden;background:var(--brand-50)}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-title{font-size:14px;line-height:1.6;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-meta{font-size:12px;color:var(--text-3);margin-top:4px}

/* ============ 文章底部 ============ */
.article-foot{margin-top:44px;display:flex;flex-direction:column;gap:30px;max-width:760px}
.foot-block h3{font-size:18px;font-weight:700;margin-bottom:14px;letter-spacing:.5px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.post-nav-card{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;transition:all .24s ease}
.post-nav-card:hover{border-color:var(--brand-100);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.pn-label{font-size:13px;color:var(--text-3)}
.pn-title{font-size:15px;font-weight:600;line-height:1.6}
.back-cat{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 卡片 ============ */
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .26s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.card-thumb{aspect-ratio:16/10;background:var(--brand-50);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--text-3)}
.card-foot .arrow{margin-left:auto;color:var(--brand)}
.related-row{margin:0 -12px}
.related-row > .cell{padding:0 12px;margin-bottom:24px}

/* ============ 相关推荐板块 ============ */
.section-tight{padding-top:0}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:var(--brand-100);box-shadow:var(--shadow-sm)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;text-align:left;background:none;border:0;padding:18px 20px;font-size:17px;font-weight:600;line-height:1.6}
.faq-icon{position:relative;width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:var(--brand-50);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;transition:all .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform .25s ease}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ============ CTA 带 ============ */
.cta-band{background:var(--brand-50);border-radius:var(--radius-lg);padding:36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:24px;font-weight:700;letter-spacing:.5px}
.cta-band p{margin-top:8px;font-size:15px;color:var(--text-2)}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);padding:64px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;letter-spacing:.5px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-brand p{margin-top:14px;max-width:320px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;letter-spacing:.5px}
.footer-logo .logo-mark{background:var(--accent)}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{position:relative;display:inline-block;font-size:14px;color:rgba(255,255,255,.8);transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-links a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.footer-links a:hover::after{transform:scaleX(1)}
.site-footer a{color:rgba(255,255,255,.85)}
.site-footer a:hover{color:#fff}
.footer-bottom{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom .sep{color:rgba(255,255,255,.28)}
.to-top{margin-left:auto;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;display:inline-flex;align-items:center;justify-content:center;transition:all .22s ease}
.to-top:hover{background:var(--accent);border-color:var(--accent)}

/* ============ Toast ============ */
.toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);background:var(--footer);color:#fff;font-size:14px;padding:12px 20px;border-radius:999px;box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:all .26s ease;z-index:120}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 340px;gap:56px;justify-content:center}
}
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1023px){
  :root{--section-y:64px}
  .dock{padding:0 12px;height:56px}
  .dock-nav{display:none}
  .hamburger{display:inline-flex}
  .dock-actions .btn-accent{display:none}
  .side-sticky{position:static;margin-top:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-head h1{font-size:32px}
}
@media (max-width:767px){
  :root{--section-y:48px;--gutter:20px}
  .dock-wrap{padding:0 14px}
  .mobile-panel{left:14px;right:14px}
  .logo-text{font-size:15px}
  .article-head{padding:26px 0}
  .article-head h1{font-size:28px;line-height:1.35}
  .article-layout{padding-top:36px;gap:32px}
  .article-content{font-size:16px;line-height:1.95}
  .share-group{margin-left:0;width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:24px}
  .cta-band{padding:26px}
  .footer-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .to-top{margin-left:0}
}
@media (max-width:520px){
  .article-content table{display:block;overflow-x:auto;white-space:nowrap}
  .btn{padding:12px 20px}
  .cta-band h2{font-size:20px}
}

/* roulang page: category3 */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --tint:#EAF2F8;
  --line-soft:#CFE0EC;
  --text:#1B2A36;
  --text-2:#5C6E7C;
  --text-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --r-dock:20px;
  --sh-1:0 2px 8px rgba(18,54,84,.06);
  --sh-2:0 12px 28px rgba(18,54,84,.12);
  --sh-dock:0 10px 30px rgba(18,54,84,.10);
  --gap:24px;
  --sec-pad:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--text);line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(23,96,143,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec-pad) 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:30px;line-height:1.25}
.section-desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.text-link i{transition:transform .2s ease;font-size:12px}
.text-link:hover i{transform:translateX(3px)}

/* ===== 浮动 Dock 导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;transition:top .25s ease}
.site-header.is-compact{top:10px}
.dock{
  width:calc(100% - 48px);
  max-width:1120px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-dock);
  display:flex;
  align-items:center;
  gap:20px;
  padding:10px 14px 10px 18px;
  transition:box-shadow .25s ease;
}
.site-header.is-compact .dock{box-shadow:0 14px 34px rgba(18,54,84,.16)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.5px;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;
  border-radius:10px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--tint);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{background:var(--tint);color:var(--brand);border-color:var(--line-soft)}
.menu-btn{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--brand);cursor:pointer;align-items:center;justify-content:center}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;border-radius:999px;box-shadow:0 6px 16px rgba(232,135,58,.28)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(232,135,58,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px}
.btn-outline{background:#fff;border:1px solid var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--tint);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{background:var(--tint);color:var(--brand);border-color:var(--tint)}
.btn-ghost:hover{background:#dceaf4;color:var(--brand-dark)}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px}
.btn-block{width:100%}

/* 移动抽屉 */
.mobile-panel{
  width:calc(100% - 48px);max-width:1120px;margin:10px auto 0;
  background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--sh-dock);
  padding:12px;display:none;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);font-weight:500;
}
.mobile-panel a:hover,.mobile-panel a.is-active{background:var(--tint);color:var(--brand);font-weight:600}
.mobile-panel .btn{margin-top:10px}

/* ===== 分类页头 ===== */
.page-hero{position:relative;margin-top:96px;overflow:hidden}
.page-hero-media{
  position:relative;min-height:260px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  display:flex;align-items:flex-end;
}
.page-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,249,251,.96) 0%,rgba(234,242,248,.90) 48%,rgba(234,242,248,.68) 100%);
}
.page-hero-inner{position:relative;z-index:2;width:100%;padding-top:56px;padding-bottom:40px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line-soft)}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-hero h1{font-size:40px;line-height:1.2;max-width:820px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.page-hero .lead{margin-top:16px;font-size:17px;line-height:1.75;color:var(--text-2);max-width:680px}

/* ===== 数据条 ===== */
.stat-strip{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:-28px;position:relative;z-index:5;
}
.stat-item{padding:26px 24px;text-align:center;border-right:1px solid var(--border)}
.stat-item:last-child{border-right:0}
.stat-num{font-family:"Inter","Noto Sans SC",sans-serif;font-size:28px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-2)}

/* ===== 卡片墙（双列不等高） ===== */
.wall{columns:2;column-gap:var(--gap);margin-top:8px}
.wall-card{
  break-inside:avoid;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;margin-bottom:var(--gap);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-soft)}
.wall-card .thumb{border-radius:var(--r-img);overflow:hidden;margin:-4px 0 18px;background:var(--tint);aspect-ratio:16/10}
.wall-card .thumb img{width:100%;height:100%;object-fit:cover}
.wall-card h3{font-size:20px;line-height:1.4;margin-bottom:10px}
.wall-card p{font-size:15px;line-height:1.8;color:var(--text-2)}
.wall-card ul{margin-top:14px}
.wall-card ul li{position:relative;padding-left:18px;font-size:14px;line-height:1.9;color:var(--text-2)}
.wall-card ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--tint);color:var(--brand);
  font-size:14px;font-weight:600;
}
.badge-hot{background:var(--accent);color:#fff}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag-row .badge{height:26px;font-size:13px}

/* ===== 对比小卡 ===== */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.compare-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);
}
.compare-card.is-good{border-top:4px solid var(--brand)}
.compare-card.is-warn{border-top:4px solid var(--accent)}
.compare-card h3{font-size:20px;display:flex;align-items:center;gap:10px;margin-bottom:18px}
.compare-card.is-good h3 i{color:var(--brand)}
.compare-card.is-warn h3 i{color:var(--accent)}
.compare-card li{
  position:relative;padding:12px 0 12px 26px;font-size:15px;line-height:1.7;color:var(--text-2);
  border-bottom:1px dashed var(--border);
}
.compare-card li:last-child{border-bottom:0}
.compare-card li::before{
  position:absolute;left:0;top:12px;font-size:14px;font-weight:700;
}
.compare-card.is-good li::before{content:"✓";color:var(--brand)}
.compare-card.is-warn li::before{content:"!";color:var(--accent)}

/* ===== 标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:999px;background:#fff;border:1px solid var(--border);
  font-size:14px;color:var(--text-2);
  transition:all .2s ease;
}
.chip:hover{background:var(--tint);border-color:var(--line-soft);color:var(--brand);transform:translateY(-2px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ===== 步骤条 ===== */
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:8px}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--tint);color:var(--brand);
  font-family:"Inter",sans-serif;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{font-size:30px;line-height:1.3}
.faq-side p{margin-top:14px;font-size:15px;color:var(--text-2);line-height:1.85}
.faq-side .btn{margin-top:22px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-soft);box-shadow:var(--sh-1)}
.faq-item.is-open{border-color:var(--line-soft);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:all .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);border-color:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-item.is-open .faq-a{max-height:320px}

/* ===== 相关分类 ===== */
.relate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.relate-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.relate-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:0;
  background:var(--brand);border-radius:0 3px 3px 0;transition:width .22s ease;
}
.relate-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-soft)}
.relate-card:hover::before{width:3px}
.relate-card .idx{font-family:"Inter",sans-serif;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px}
.relate-card h3{font-size:18px;margin:12px 0 8px;color:var(--text)}
.relate-card p{font-size:14px;line-height:1.75;color:var(--text-2)}

/* ===== CTA 带 ===== */
.cta-band{
  background:var(--tint);border-radius:20px;padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:24px;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);padding:64px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.5px;
}
.footer-logo .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a,.site-footer p a{
  position:relative;font-size:14px;color:rgba(255,255,255,.8);transition:color .2s ease;
}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--accent);
  transition:width .2s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
.site-footer p a{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom .sep{color:rgba(255,255,255,.28)}
.to-top{
  margin-left:auto;width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(255,255,255,.26);background:transparent;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease;
}
.to-top:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1023px){
  :root{--sec-pad:64px}
  .dock-nav{display:none}
  .menu-btn{display:inline-flex}
  .dock{padding:8px 12px 8px 16px;gap:12px;height:56px}
  .dock-actions .btn{display:none}
  .logo-text{font-size:15px}
  .page-hero{margin-top:88px}
  .page-hero h1{font-size:32px}
  .wall{columns:1}
  .stat-strip{grid-template-columns:1fr;margin-top:0}
  .stat-item{border-right:0;border-bottom:1px solid var(--border)}
  .stat-item:last-child{border-bottom:0}
  .compare-grid{grid-template-columns:1fr}
  .step-track{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .relate-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:48px;margin-top:64px}
}
@media (max-width:639px){
  :root{--sec-pad:48px}
  .container{padding:0 20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .section-title{font-size:24px}
  .page-hero-media{min-height:180px}
  .page-hero-inner{padding-top:32px;padding-bottom:28px}
  .page-hero h1{font-size:26px;line-height:1.32}
  .page-hero .lead{font-size:15px}
  .dock{width:calc(100% - 40px)}
  .mobile-panel{width:calc(100% - 40px)}
  .stat-item{padding:20px 18px}
  .step-track{grid-template-columns:1fr}
  .relate-grid{grid-template-columns:1fr}
  .cta-band{padding:26px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{gap:8px}
  .to-top{margin-left:0}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --tint:#EAF2F8;
  --tint-line:#CFE0EC;
  --text:#1B2A36;
  --text-2:#5C6E7C;
  --text-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --r-dock:20px;
  --sh-1:0 2px 8px rgba(18,54,84,.06);
  --sh-2:0 12px 28px rgba(18,54,84,.12);
  --sh-dock:0 10px 30px rgba(18,54,84,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:300;transition:top .28s ease;}
.site-header.is-scrolled{top:10px;}
.nav-dock{
  width:calc(100% - 32px);
  max-width:1120px;
  margin:0 auto;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-dock);
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 18px;
  transition:box-shadow .28s ease;
}
.site-header.is-scrolled .nav-dock{box-shadow:0 14px 36px rgba(18,54,84,.16);}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--text);letter-spacing:.4px;white-space:nowrap;}
.nav-logo:hover{color:var(--brand);}
.logo-mark{width:28px;height:28px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{position:relative;display:inline-block;padding:8px 12px;border-radius:10px;font-size:15px;color:var(--text-2);transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--tint);color:var(--brand);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s ease;}
.icon-btn:hover{color:var(--brand);border-color:var(--tint-line);background:var(--tint);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle:hover{background:var(--tint);color:var(--brand);}
.mobile-menu{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:20px;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;border-radius:999px;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);border-radius:999px;}
.btn-ghost:hover{background:var(--tint);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.link-more svg{transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(3px);}

/* ============ 页头 ============ */
.page-hero{
  margin-top:92px;
  min-height:260px;
  display:flex;
  align-items:center;
  color:#fff;
  background-image:linear-gradient(rgba(16,41,59,.76),rgba(16,41,59,.66)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
}
.page-hero .crumb{display:flex;align-items:center;gap:8px;font-size:13px;line-height:20px;color:rgba(255,255,255,.78);margin-bottom:16px;flex-wrap:wrap;}
.page-hero .crumb a{color:rgba(255,255,255,.78);}
.page-hero .crumb a:hover{color:#fff;}
.page-hero .crumb .sep{opacity:.5;}
.page-hero .crumb .current{color:#fff;font-weight:600;}
.page-hero h1{font-size:40px;line-height:48px;font-weight:700;letter-spacing:.5px;color:#fff;margin-bottom:14px;}
.page-hero .lead{font-size:17px;line-height:28px;color:rgba(255,255,255,.86);max-width:660px;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section-alt{background:#fff;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:30px;line-height:36px;font-weight:700;letter-spacing:.5px;margin-bottom:10px;}
.section-head p{font-size:15px;line-height:26px;color:var(--text-2);max-width:620px;}

/* ============ 数据条 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 0;
  margin-top:-52px;
  position:relative;
  z-index:5;
}
.stat{text-align:center;padding:6px 24px;border-right:1px solid var(--border);}
.stat:last-child{border-right:none;}
.stat b{display:block;font-size:30px;line-height:38px;font-weight:700;color:var(--brand);letter-spacing:.5px;}
.stat span{display:block;font-size:14px;line-height:22px;color:var(--text-2);margin-top:4px;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:4px;}
.timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;background:var(--tint-line);border-radius:2px;}
.tl-item{position:relative;padding-left:72px;margin-bottom:24px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:4px;top:16px;
  width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;line-height:1;
  box-shadow:0 0 0 4px var(--bg);
}
.tl-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--tint-line);}
.tl-card h3{font-size:20px;line-height:28px;font-weight:600;letter-spacing:.4px;margin-bottom:10px;}
.tl-card p{font-size:15px;line-height:28px;color:var(--text-2);margin-bottom:12px;}
.tl-card p:last-child{margin-bottom:0;}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:13px;line-height:20px;background:var(--tint);color:var(--brand);font-weight:500;}
.badge-hot{background:rgba(232,135,58,.14);color:var(--accent-dark);}

/* ============ 对比卡 ============ */
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cmp-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cmp-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--tint-line);}
.cmp-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.cmp-icon{width:42px;height:42px;border-radius:12px;background:var(--tint);color:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.cmp-card h3{font-size:20px;line-height:28px;font-weight:600;letter-spacing:.4px;}
.cmp-list li{position:relative;padding-left:22px;font-size:15px;line-height:28px;color:var(--text-2);margin-bottom:10px;}
.cmp-list li:last-child{margin-bottom:0;}
.cmp-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--accent);}

/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag{display:inline-flex;align-items:center;padding:9px 16px;border-radius:999px;background:var(--tint);color:var(--brand);font-size:14px;line-height:20px;border:1px solid transparent;transition:.2s ease;cursor:default;}
.tag:hover{background:#fff;border-color:var(--tint-line);transform:translateY(-2px);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item.is-open{border-color:var(--tint-line);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;
  font-size:17px;line-height:26px;font-weight:600;color:var(--text);text-align:left;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  width:26px;height:26px;border-radius:50%;border:1px solid var(--tint-line);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;font-size:16px;line-height:1;transition:.2s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);border-color:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:28px;color:var(--text-2);}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.rel-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);color:var(--text);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,color .25s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--tint-line);color:var(--brand);}
.rel-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;display:block;margin-bottom:10px;}
.rel-card h3{font-size:18px;line-height:26px;font-weight:600;margin-bottom:8px;}
.rel-card p{font-size:14px;line-height:24px;color:var(--text-2);margin-bottom:14px;}
.rel-card .go{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.rel-card:hover .go{color:var(--brand-dark);}

/* ============ CTA ============ */
.cta-band{
  background:var(--tint);
  border-radius:20px;
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;line-height:32px;font-weight:700;letter-spacing:.5px;margin-bottom:8px;}
.cta-band p{font-size:15px;line-height:26px;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);padding:64px 0 28px;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:16px;line-height:24px;font-weight:600;letter-spacing:.5px;margin-bottom:16px;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;margin-bottom:14px;}
.footer-logo .logo-mark{background:var(--brand);}
.footer-brand p{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);}
.site-footer p{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);}
.footer-links li{margin-bottom:10px;}
.footer-links a{position:relative;display:inline-block;font-size:14px;line-height:22px;color:rgba(255,255,255,.8);padding-bottom:2px;transition:color .2s ease;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .22s ease;}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{width:100%;}
.site-footer a{color:rgba(255,255,255,.86);}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;line-height:20px;color:rgba(255,255,255,.62);
}
.footer-bottom .sep{opacity:.4;}
.to-top{
  margin-left:auto;width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s ease;
}
.to-top:hover{background:var(--accent);border-color:var(--accent);color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .dock-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-search,.nav-cta{display:none;}
  .mobile-menu{
    display:block;position:absolute;left:16px;right:16px;top:74px;
    background:#fff;border:1px solid var(--border);border-radius:16px;
    box-shadow:var(--sh-2);padding:12px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
  }
  .mobile-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .mobile-menu a{display:block;padding:12px 14px;min-height:44px;border-radius:10px;color:var(--text-2);font-size:15px;line-height:20px;}
  .mobile-menu a:hover{background:var(--tint);color:var(--brand);}
  .mobile-menu a.is-active{background:var(--tint);color:var(--brand);font-weight:600;}
  .mobile-menu .btn{width:100%;margin-top:10px;}
  .section{padding:64px 0;}
  .section--tight{padding:44px 0;}
  .page-hero h1{font-size:32px;line-height:42px;}
  .section-head h2{font-size:26px;line-height:34px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  .page-hero{margin-top:86px;min-height:180px;}
  .page-hero h1{font-size:27px;line-height:38px;}
  .page-hero .lead{font-size:15px;line-height:26px;}
  .stats{grid-template-columns:1fr;padding:8px 0;margin-top:-40px;}
  .stat{border-right:none;border-bottom:1px solid var(--border);padding:16px 24px;}
  .stat:last-child{border-bottom:none;}
  .compare{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
}
@media (max-width:639px){
  .section{padding:48px 0;}
  .section--tight{padding:36px 0;}
  .container{padding:0 20px;}
  .nav-dock{width:calc(100% - 24px);padding:8px 10px 8px 14px;gap:10px;}
  .nav-logo{font-size:15px;}
  .timeline{padding-left:0;}
  .timeline::before{left:15px;}
  .tl-item{padding-left:54px;}
  .tl-dot{left:-4px;width:34px;height:34px;font-size:13px;}
  .tl-card{padding:20px;}
  .tl-card h3{font-size:18px;line-height:26px;}
  .stats{margin-top:-28px;}
}

/* roulang page: category4 */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --tint:#EAF2F8;
  --tint-line:#CFE0EC;
  --ink:#1B2A36;
  --ink-2:#5C6E7C;
  --ink-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-btn:10px;
  --shadow-card:0 2px 8px rgba(18,54,84,.06);
  --shadow-card-hover:0 12px 28px rgba(18,54,84,.12);
  --shadow-dock:0 10px 30px rgba(18,54,84,.10);
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:104px 0 0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--ink);}
h1{font-size:40px;line-height:1.2;}
h2{font-size:30px;line-height:1.25;}
h3{font-size:20px;line-height:1.4;font-weight:600;letter-spacing:0;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}

/* ---------- Dock 导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;padding:0 24px;transition:top .25s ease;}
.site-header.is-scrolled{top:10px;}
.dock{
  max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:18px;
  background:#fff;border:1px solid var(--border);border-radius:20px;
  box-shadow:var(--shadow-dock);padding:10px 14px 10px 18px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.site-header.is-scrolled .dock{box-shadow:0 14px 34px rgba(18,54,84,.16);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand .logo-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-text{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.5px;white-space:nowrap;}
.brand-short{display:none;font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:10px;
  font-size:15px;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--tint);color:var(--brand);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--tint-line);background:var(--tint);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;padding:12px 24px;min-height:44px;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;border-radius:999px;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--tint);color:var(--brand-dark);transform:translateY(-1px);}
.btn-line{background:#fff;border-color:var(--border);color:var(--ink-2);border-radius:999px;}
.btn-line:hover{border-color:var(--brand);color:var(--brand);background:var(--tint);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand);padding:6px 0;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(3px);}
.burger{display:none;}
.mobile-panel{
  display:none;position:absolute;left:24px;right:24px;top:calc(100% + 10px);
  background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-dock);
  padding:12px;max-width:1120px;margin:0 auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel .nav-link{display:block;line-height:44px;padding:0 14px;font-size:16px;}
.mobile-panel .nav-link.is-active::after{display:none;}
.mobile-panel .btn{width:100%;margin-top:10px;}
.dock-wrapper{position:relative;max-width:1120px;margin:0 auto;}

/* ---------- 面包屑 ---------- */
.breadcrumb-wrap{padding:22px 0 0;}
.breadcrumb{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- 分类页头 ---------- */
.page-hero{
  margin-top:18px;
  border-radius:20px;overflow:hidden;position:relative;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  min-height:260px;display:flex;align-items:center;
}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(17,76,115,.86) 0%,rgba(17,76,115,.62) 62%,rgba(17,76,115,.42) 100%);}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.page-hero .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;color:#fff;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.page-hero h1{color:#fff;max-width:840px;}
.page-hero p{margin-top:14px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.88);max-width:660px;}

/* ---------- 板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--tint);
  border-radius:999px;padding:5px 14px;margin-bottom:14px;letter-spacing:.5px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-2);}

/* ---------- 三步自查 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.step-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--tint-line);}
.step-num{
  width:36px;height:36px;border-radius:10px;background:var(--tint);color:var(--brand);
  font-family:"Inter",sans-serif;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- 问答流 ---------- */
.qa-flow-wrap{max-width:900px;margin:0 auto;}
.qa-list{
  background:#fff;border:1px solid var(--border);border-radius:calc(var(--radius-card) + 4px);
  padding:8px 32px;box-shadow:var(--shadow-card);
}
.qa-item{padding:30px 0;}
.qa-item + .qa-item{border-top:1px solid var(--border);}
.qa-item h3{font-size:19px;line-height:1.5;color:var(--ink);margin-bottom:12px;display:flex;gap:12px;align-items:flex-start;}
.qa-item h3 .q-mark{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;background:var(--tint);color:var(--brand);
  font-family:"Inter",sans-serif;font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.qa-item p{font-size:15px;line-height:1.85;color:var(--ink-2);padding-left:38px;}
.qa-item p + p{margin-top:10px;}
.qa-note{
  margin-top:24px;background:var(--tint);border-left:3px solid var(--accent);border-radius:12px;
  padding:18px 22px;font-size:15px;color:var(--brand-dark);line-height:1.8;
}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.tag{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;
  background:#fff;border:1px solid var(--border);color:var(--ink-2);
  border-radius:999px;padding:10px 18px;transition:all .2s ease;cursor:default;
}
.tag:hover{border-color:var(--tint-line);color:var(--brand);background:var(--tint);transform:translateY(-2px);}
.tag.is-hot{background:var(--accent);border-color:var(--accent);color:#fff;}
.tag.is-hot:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;}

/* ---------- 相关分类 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.cat-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative;
}
.cat-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--tint-line);}
.cat-card:hover::before{transform:scaleY(1);}
.cat-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--tint);}
.cat-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.cat-body{padding:22px 24px 24px;}
.cat-body .cat-index{font-family:"Inter",sans-serif;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;}
.cat-body h3{font-size:18px;margin:8px 0 8px;color:var(--ink);}
.cat-card:hover h3{color:var(--brand);}
.cat-body p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.cat-more{margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--tint);border-radius:20px;padding:40px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--ink-2);max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.round-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;
}
.round-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);}

/* ---------- 表单 ---------- */
.contact-card{
  background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-card);
  padding:40px;display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;
}
.contact-card h2{font-size:26px;margin-bottom:12px;}
.contact-card p{font-size:15px;color:var(--ink-2);}
.inline-form{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;}
.form-field{flex:1;min-width:220px;}
.form-field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:8px;}
.form-field input{
  width:100%;height:48px;border-radius:var(--radius-input);border:1px solid var(--border);
  background:#fff;padding:0 16px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field input::placeholder{color:var(--ink-3);}
.form-field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,143,.14);}
.form-hint{margin-top:12px;font-size:13px;color:var(--ink-3);}
.form-msg{font-size:13px;color:var(--accent-dark);margin-top:8px;display:none;}
.form-msg.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);margin-top:88px;padding:68px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;letter-spacing:.5px;margin-bottom:16px;}
.footer-logo .logo-mark{
  width:26px;height:26px;border-radius:8px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.5px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(255,255,255,.78);font-size:14px;border-bottom:2px solid transparent;padding-bottom:2px;transition:all .2s ease;}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:24px 0;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom .sep{color:rgba(255,255,255,.28);}
.to-top{
  margin-left:auto;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease;
}
.to-top:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1200px;}
}
@media (max-width:1023px){
  body{padding-top:92px;}
  .section{padding:64px 0;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .dock-nav{display:none;}
  .burger{display:inline-flex;}
  .dock{padding:8px 12px;}
  .brand-text{display:none;}
  .brand-short{display:inline-block;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .contact-card{grid-template-columns:1fr;gap:24px;padding:32px;}
  .page-hero{min-height:240px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  .page-hero{min-height:180px;}
  .page-hero .container{padding-top:32px;padding-bottom:32px;}
  .page-hero p{font-size:15px;}
  .qa-list{padding:4px 20px;border-radius:16px;}
  .qa-item{padding:24px 0;}
  .qa-item h3{font-size:17px;}
  .qa-item p{padding-left:0;font-size:15px;}
  .qa-item h3 .q-mark{width:24px;height:24px;}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .site-header{top:12px;padding:0 16px;}
  .dock{border-radius:18px;}
  .mobile-panel{left:16px;right:16px;}
  .steps{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .inline-form{flex-direction:column;align-items:stretch;}
  .inline-form .btn{width:100%;}
  .form-field{min-width:0;}
  .footer-bottom{font-size:12px;}
  .to-top{margin:12px 0 0;align-self:flex-start;}
}

/* roulang page: category5 */
/* ============ 设计变量 ============ */
:root{
  --brand:#17608F;
  --brand-dark:#114C73;
  --brand-100:#EAF2F8;
  --brand-200:#CFE0EC;
  --accent:#E8873A;
  --accent-dark:#D2762C;
  --text:#1B2A36;
  --text-2:#5C6E7C;
  --text-3:#8A9AA6;
  --border:#E4EAF0;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --footer:#10293B;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(18,54,84,.06);
  --sh-2:0 12px 28px rgba(18,54,84,.12);
  --sh-dock:0 10px 30px rgba(18,54,84,.10);
  --maxw:1200px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:104px 0 0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:28px;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.5px;font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px}

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

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{
  position:fixed;top:0;left:0;right:0;z-index:900;
  padding:16px 24px 0;
  transition:padding .28s ease;
  pointer-events:none;
}
.dock-wrap.is-scrolled{padding-top:10px}
.dock{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;height:72px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:20px;
  box-shadow:var(--sh-dock);
  display:flex;align-items:center;gap:18px;
  padding:0 20px;
  transition:height .28s ease,box-shadow .28s ease;
}
.dock-wrap.is-scrolled .dock{height:64px;box-shadow:0 14px 34px rgba(18,54,84,.16)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);font-weight:700;font-size:16px;letter-spacing:.5px}
.dock-logo:hover{color:var(--brand-dark)}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.dock-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:15px;position:relative;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;
  color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  transition:.2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand-200);background:var(--brand-100)}
.menu-toggle{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.4px;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;border-radius:var(--r-pill);box-shadow:0 6px 16px rgba(232,135,58,.28)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:3px solid rgba(232,135,58,.35);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-dark);border-color:var(--brand-dark)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-more svg{transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

/* 移动端抽屉 */
.mobile-panel{
  pointer-events:auto;
  max-width:1120px;margin:10px auto 0;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--sh-dock);
  padding:10px;display:none;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;height:44px;padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:15px;
}
.mobile-panel a:hover{background:var(--brand-100);color:var(--brand)}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;background:var(--brand-100)}
.mobile-panel .btn{width:100%;margin-top:8px}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:22px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--brand-200)}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ============ 分类页头 ============ */
.page-hero{padding:16px 0 0}
.page-hero-card{
  position:relative;overflow:hidden;border-radius:20px;
  min-height:260px;display:flex;align-items:flex-end;
  border:1px solid var(--border);
  background:var(--brand-100);
}
.page-hero-card img.hero-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.page-hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(16,41,59,.86) 0%,rgba(23,96,143,.66) 52%,rgba(23,96,143,.30) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:44px 40px;max-width:820px}
.page-hero-inner .eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:13px;letter-spacing:.6px;margin-bottom:16px;
}
.page-hero-inner h1{color:#fff;font-size:34px;line-height:1.32;text-shadow:0 2px 12px rgba(9,28,42,.35)}
.page-hero-inner p{color:rgba(255,255,255,.88);font-size:16px;line-height:28px;margin-top:14px;max-width:640px}

/* ============ 板块 ============ */
main{display:block}
.section{padding:88px 0 0}
.section-inner-pad{padding-bottom:0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;flex-wrap:wrap;
}
.section-title{font-size:30px;line-height:36px}
.section-desc{color:var(--text-2);font-size:16px;line-height:28px;margin-top:10px;max-width:640px}
.section-tag{
  display:inline-block;font-size:13px;color:var(--brand);background:var(--brand-100);
  border-radius:999px;padding:5px 12px;margin-bottom:12px;letter-spacing:.6px;
}

/* ============ 数据条 ============ */
.stats-row{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat{padding:28px 24px;text-align:center;position:relative}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:1px;background:var(--border);
}
.stat b{
  display:block;font-family:Inter,"Noto Sans SC",sans-serif;
  font-size:32px;line-height:40px;font-weight:700;color:var(--brand);
}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--text-2);line-height:22px}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--brand-200),rgba(207,224,236,.25));
}
.tl-item{position:relative;padding-left:74px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:0;top:6px;width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid var(--brand-200);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,sans-serif;font-size:15px;font-weight:700;color:var(--accent);
}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-200)}
.tl-date{
  display:inline-block;font-family:Inter,sans-serif;font-size:13px;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-100);border-radius:999px;padding:3px 12px;
}
.tl-title{font-size:20px;line-height:28px;font-weight:600;margin-top:14px}
.tl-text{color:var(--text-2);font-size:15px;line-height:28px;margin-top:10px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-tags span{
  font-size:13px;color:var(--text-2);border:1px solid var(--border);
  border-radius:999px;padding:4px 12px;background:#fff;
}

/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;font-size:14px;
  background:var(--brand-100);color:var(--brand);border:1px solid transparent;
  transition:.2s ease;
}
.tag:hover{background:#fff;border-color:var(--brand-200);color:var(--brand-dark)}
.tag.hot{background:rgba(232,135,58,.12);color:var(--accent-dark)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-200);box-shadow:var(--sh-1)}
.faq-item[open]{border-color:var(--brand-200);box-shadow:var(--sh-1)}
.faq-q{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 60px 18px 20px;font-size:17px;font-weight:600;line-height:28px;color:var(--text);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;background:var(--brand-100);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;line-height:1;font-weight:700;
}
.faq-item[open] .faq-q::after{content:"−";background:var(--accent);color:#fff}
.faq-a{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:28px}

/* ============ 相关分类 ============ */
.rel-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-200);color:inherit}
.rel-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--brand-100)}
.rel-body{padding:20px}
.rel-body h3{font-size:18px;line-height:26px;font-weight:600}
.rel-body p{margin-top:8px;font-size:14px;line-height:24px;color:var(--text-2)}
.rel-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:14px;font-size:13px;color:var(--text-3);
}
.rel-foot svg{transition:transform .2s ease;color:var(--brand)}
.rel-card:hover .rel-foot svg{transform:translateX(3px)}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-100);border-radius:20px;padding:40px;
  display:grid;grid-template-columns:1fr minmax(320px,420px);gap:32px;align-items:center;
  border:1px solid var(--brand-200);
}
.cta-band h2{font-size:24px;line-height:32px}
.cta-band p{color:var(--text-2);font-size:15px;line-height:26px;margin-top:10px}
.subscribe-form{display:flex;gap:12px}
.subscribe-form input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 16px;
  border:1px solid var(--border);border-radius:var(--r-input);background:#fff;
  font-size:15px;color:var(--text);transition:.2s ease;
}
.subscribe-form input::placeholder{color:var(--text-3)}
.subscribe-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,143,.14)}
.form-note{font-size:13px;color:var(--text-3);margin-top:10px;line-height:22px}
.form-hint{margin-top:10px;font-size:13px;color:var(--accent-dark);display:none}
.form-hint.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{
  display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;
  letter-spacing:.5px;margin-bottom:14px;
}
.footer-logo .logo-mark{background:linear-gradient(140deg,var(--brand),#2a86bd)}
.site-footer p{font-size:14px;line-height:26px;color:rgba(255,255,255,.72)}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.5px;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.8);font-size:14px;position:relative}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom .sep{opacity:.45}
.to-top{
  margin-left:auto;width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;transition:.2s ease;
}
.to-top:hover{background:var(--accent);border-color:var(--accent)}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--maxw:1280px}
}
@media (max-width:1023px){
  .dock-nav{display:none}
  .menu-toggle{display:inline-flex}
  .section{padding-top:64px}
  .page-hero-inner{padding:36px 28px}
  .page-hero-inner h1{font-size:28px}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  body{padding-top:96px}
}
@media (max-width:639px){
  body{padding-top:88px;font-size:15px}
  .container{padding:0 20px}
  .dock{height:56px;padding:0 14px;border-radius:18px;gap:10px}
  .dock-wrap{padding:14px 16px 0}
  .dock-wrap.is-scrolled{padding-top:8px}
  .dock-logo{font-size:14px}
  .logo-mark{width:26px;height:26px;border-radius:8px}
  .dock-actions .btn-primary{display:none}
  .section{padding-top:48px}
  .section-title{font-size:23px;line-height:32px}
  .page-hero-card{min-height:180px}
  .page-hero-inner{padding:24px 20px}
  .page-hero-inner h1{font-size:22px;line-height:1.38}
  .page-hero-inner p{font-size:14px;line-height:24px}
  .stats-row{grid-template-columns:1fr}
  .stat + .stat::before{left:20px;right:20px;top:0;bottom:auto;width:auto;height:1px}
  .timeline::before{left:17px}
  .tl-item{padding-left:56px}
  .tl-dot{width:38px;height:38px;font-size:13px}
  .tl-card{padding:20px}
  .tl-title{font-size:17px;line-height:26px}
  .cta-band{padding:24px 20px;gap:20px}
  .cta-band h2{font-size:20px;line-height:28px}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .footer-bottom{font-size:12px}
  .to-top{margin-left:0}
}