/* roulang page: index */
:root{
  --brand:#17506E;
  --brand-dark:#0F3D57;
  --brand-soft:#EAF3F8;
  --accent:#F4713F;
  --ink:#12212B;
  --body:#3D4F5C;
  --muted:#7A8A96;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --ok:#2E9E6B;
  --warn:#D9A400;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(18,33,43,.04), 0 2px 10px rgba(18,33,43,.05);
  --sh2:0 10px 30px rgba(18,33,43,.10);
  --sp:24px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease-out,background-color .22s ease-out;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:0;}
h1{font-size:40px;line-height:1.25;}
h2{font-size:28px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;font-weight:600;line-height:1.6;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 16px;padding-left:22px;}
li{margin-bottom:6px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.sec{padding:80px 0;}
.sec-soft{background:var(--bg);}
.sec-white{background:var(--card);}
.sec-ink{background:var(--brand-dark);color:#fff;}

/* ---------- 顶部信息条 ---------- */
.topbar{height:36px;background:var(--brand-soft);border-bottom:1px solid var(--line);font-size:14px;line-height:1.7;color:var(--brand);}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:36px;}
.topbar .tb-left{display:flex;align-items:center;gap:8px;font-size:13px;}
.topbar .tb-left i{color:var(--accent);}
.topbar .tb-links{display:flex;align-items:center;gap:20px;font-size:13px;}
.topbar .tb-links a{color:var(--brand);}
.topbar .tb-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out;}
.site-header.is-stuck{box-shadow:var(--sh1);}
.nav-main{display:flex;align-items:center;gap:24px;height:76px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:grid;place-items:center;flex-shrink:0;}
.logo-mark svg{width:20px;height:20px;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text .lt1{font-size:17px;font-weight:700;color:var(--ink);}
.logo-text .lt2{font-size:13px;color:var(--muted);line-height:1.6;}
.logo:hover .lt1{color:var(--brand);}
.nav-search{flex:1 1 auto;max-width:520px;min-width:0;}
.search-box{position:relative;display:flex;align-items:center;height:44px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 4px 0 16px;transition:border-color .22s ease-out,box-shadow .22s ease-out;}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,80,110,.12);}
.search-box i.fa-magnifying-glass{color:var(--muted);font-size:15px;}
.search-box input{flex:1;border:0;background:transparent;height:100%;font-size:14px;color:var(--ink);padding:0 10px;min-width:0;}
.search-box input::placeholder{color:var(--muted);font-size:14px;}
.search-box input:focus{outline:none;}
.search-box button{height:36px;border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:14px;font-weight:600;padding:0 18px;display:inline-flex;align-items:center;gap:6px;transition:background-color .22s ease-out,transform .22s ease-out;}
.search-box button:hover{background:var(--brand-dark);}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto;flex-shrink:0;}
.nav-links a{position:relative;font-size:15px;color:var(--body);padding:6px 0;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);transition:width .22s ease-out;}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{width:100%;}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:0;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:15px;font-weight:600;transition:background-color .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;}
.btn-main:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--sh2);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:1px solid var(--brand);border-radius:var(--r-btn);background:transparent;color:var(--brand);font-size:15px;font-weight:600;transition:background-color .22s ease-out,color .22s ease-out;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-main.on-dark,.btn-ghost.on-dark{position:relative;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--brand);align-items:center;justify-content:center;font-size:17px;}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px;}
.mobile-nav.open{display:block;}
.mobile-nav .search-box{margin-bottom:14px;}
.mobile-nav .m-links{display:flex;flex-direction:column;}
.mobile-nav .m-links a{height:44px;display:flex;align-items:center;font-size:15px;color:var(--body);border-bottom:1px solid var(--line);}
.mobile-nav .m-links a.active{color:var(--brand);font-weight:600;}
.mobile-nav .btn-main{width:100%;margin-top:16px;}

/* ---------- Hero ---------- */
.hero-outer{padding:24px 0 0;}
.hero{position:relative;border-radius:24px;overflow:hidden;min-height:460px;display:flex;align-items:center;background:var(--brand-dark);}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,61,87,.94) 0%,rgba(15,61,87,.82) 45%,rgba(15,61,87,.10) 100%);z-index:1;}
.hero-inner{position:relative;z-index:2;padding:56px;max-width:560px;color:#fff;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);background:rgba(244,113,63,.92);color:#fff;font-size:14px;font-weight:600;margin-bottom:18px;}
.hero h1{color:#fff;font-size:40px;line-height:1.25;margin-bottom:16px;}
.hero .hero-sub{font-size:16px;line-height:1.9;color:rgba(255,255,255,.88);margin-bottom:26px;letter-spacing:.02em;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.hero-tags{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.85);}
.hero-tags span{display:inline-flex;align-items:center;gap:7px;}
.hero-tags i{color:var(--accent);}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head .sh-l{max-width:720px;}
.sec-head .eyebrow{display:inline-block;font-size:14px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:12px;}
.sec-head h2{margin-bottom:8px;}
.sec-head p{color:var(--muted);font-size:14px;line-height:1.7;margin:0;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;}
.link-more i{transition:transform .22s ease-out;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 横滑片库 ---------- */
.rail-section{background:var(--bg);}
.rail-wrap{position:relative;}
.rail{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 18px;scrollbar-width:thin;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:#cfdbe4;border-radius:var(--r-pill);}
.rail-card{position:relative;flex:0 0 260px;height:160px;border-radius:var(--r-card);overflow:hidden;scroll-snap-align:start;background:var(--brand-dark);box-shadow:var(--sh1);transition:transform .22s ease-out,box-shadow .22s ease-out;display:block;}
.rail-card img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.rail-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,61,87,0) 38%,rgba(15,61,87,.88) 100%);}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.rail-card:hover img{transform:scale(1.04);}
.rail-card .rc-badge{position:absolute;top:12px;left:12px;z-index:2;height:26px;display:inline-flex;align-items:center;padding:0 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.94);color:var(--brand);font-size:13px;font-weight:600;}
.rail-card .rc-badge.hot{background:var(--accent);color:#fff;}
.rail-card .rc-title{position:absolute;left:14px;right:14px;bottom:14px;z-index:2;color:#fff;font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-btn{position:absolute;top:50%;transform:translateY(-60%);width:40px;height:40px;border-radius:50%;border:0;background:#fff;box-shadow:var(--sh1);color:var(--brand);display:grid;place-items:center;z-index:3;transition:background-color .22s ease-out,color .22s ease-out;}
.rail-btn:hover{background:var(--brand);color:#fff;}
.rail-btn.prev{left:-8px;}
.rail-btn.next{right:-8px;}

/* ---------- 非对称推荐区 ---------- */
.feat-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.feat-main{background:var(--card);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform .22s ease-out,box-shadow .22s ease-out;}
.feat-main:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.feat-main .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;}
.feat-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.feat-main:hover .thumb img{transform:scale(1.04);}
.feat-body{padding:26px 28px 28px;}
.feat-body h3{font-size:22px;line-height:1.5;margin-bottom:10px;}
.feat-main:hover h3{color:var(--brand);}
.feat-body p{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:16px;}
.meta-row{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.badge-soft{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);font-size:14px;font-weight:600;}
.badge-hot{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--accent);color:#fff;font-size:14px;font-weight:600;}
.feat-side{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.mini-card{background:var(--card);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform .22s ease-out,box-shadow .22s ease-out;}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.mini-card .thumb{aspect-ratio:16/10;overflow:hidden;}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.mini-card:hover .thumb img{transform:scale(1.04);}
.mini-body{padding:16px 18px 18px;}
.mini-body .badge-soft{margin-bottom:8px;}
.mini-body h4{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-card:hover h4{color:var(--brand);}
.mini-body .meta-row{margin-top:10px;}

/* ---------- 资讯列表 CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--card);border-radius:var(--r-card);border:1px solid var(--line);padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:var(--brand-soft);color:var(--body);}
.news-card .badge-soft{align-self:flex-start;}
.news-card h3{font-size:17px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink);}
.news-card:hover h3{color:var(--brand);}
.news-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.news-foot .arrow{color:var(--brand);transition:transform .22s ease-out;}
.news-card:hover .arrow{transform:translateX(4px);}
.empty-state{background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;}
.empty-state i{font-size:28px;color:var(--brand);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);font-size:14px;margin-bottom:18px;}

/* ---------- 双分区片单 ---------- */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
.pane-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.pane-head h3{display:flex;align-items:center;gap:10px;}
.pane-head h3 i{color:var(--accent);font-size:16px;}
.list-row{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);transition:transform .22s ease-out;}
.list-row:last-child{border-bottom:0;}
.list-row:hover{transform:translateX(3px);}
.list-row .lr-thumb{flex:0 0 180px;height:110px;border-radius:var(--r-img);overflow:hidden;}
.list-row .lr-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.list-row:hover .lr-thumb img{transform:scale(1.04);}
.list-row .lr-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.list-row h4{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.list-row:hover h4{color:var(--brand);}
.list-row p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.list-row .meta-row{margin-top:auto;font-size:13px;}

/* ---------- 数据带 ---------- */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh1);}
.stat-item{text-align:left;}
.stat-item .num{font-size:28px;font-weight:700;color:var(--brand);line-height:1.35;font-variant-numeric:tabular-nums;}
.stat-item .num em{font-style:normal;color:var(--accent);}
.stat-item .lbl{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:960px;margin:0 auto;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .22s ease-out,box-shadow .22s ease-out;}
.faq-item.open{border-color:var(--brand);box-shadow:var(--sh1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;}
.faq-q:hover{color:var(--brand);}
.faq-q .fx{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:13px;transition:transform .22s ease-out,background-color .22s ease-out,color .22s ease-out;}
.faq-item.open .faq-q .fx{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-a .inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--body);}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-dark);color:#fff;border-radius:var(--r-card);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(244,113,63,.16);}
.cta-band h2{color:#fff;margin-bottom:12px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;max-width:620px;margin:0;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.74);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-grid .f-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.f-brand .logo-mark{background:rgba(255,255,255,.14);}
.f-brand .lt1{color:#fff;}
.f-brand .lt2{color:rgba(255,255,255,.6);}
.f-brand p{font-size:14px;line-height:1.8;margin:16px 0 18px;color:rgba(255,255,255,.72);}
.f-social{display:flex;gap:12px;}
.f-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;display:grid;place-items:center;font-size:14px;transition:background-color .22s ease-out,transform .22s ease-out;}
.f-social a:hover{background:var(--accent);transform:translateY(-2px);color:#fff;}
.f-links{list-style:none;padding:0;margin:0;}
.f-links li{margin-bottom:12px;}
.f-links a{font-size:14px;color:rgba(255,255,255,.74);}
.f-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.f-contact{font-size:14px;line-height:1.8;}
.f-contact div{margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.f-contact i{color:var(--accent);margin-top:5px;}
.f-form{margin-top:16px;}
.f-form label{font-size:13px;color:rgba(255,255,255,.66);display:block;margin-bottom:8px;}
.f-form .field{display:flex;gap:8px;}
.f-form input{flex:1;height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px;min-width:0;}
.f-form input::placeholder{color:rgba(255,255,255,.45);}
.f-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(244,113,63,.18);}
.f-form button{height:44px;padding:0 16px;border:0;border-radius:var(--r-btn);background:var(--accent);color:#fff;font-weight:600;font-size:14px;white-space:nowrap;transition:background-color .22s ease-out;}
.f-form button:hover{background:#dd5f31;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;}
.footer-bottom .fb-right{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;border:0;background:var(--brand);color:#fff;display:grid;place-items:center;box-shadow:var(--sh2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;z-index:1040;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-dark);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .feat-grid{grid-template-columns:1fr;}
  .split-grid{gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-search{max-width:none;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-main{height:68px;gap:16px;flex-wrap:wrap;}
  .hero{min-height:400px;}
  .hero-inner{padding:40px;max-width:520px;}
  .hero h1{font-size:34px;}
  .sec{padding:64px 0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .feat-side{grid-template-columns:1fr 1fr;}
  .stats-strip{grid-template-columns:1fr 1fr;gap:20px;}
  .split-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
  .rail-btn{display:none;}
}
@media (max-width:767px){
  .topbar{display:none;}
  .wrap{padding:0 16px;}
  .nav-main{height:auto;padding:12px 0;gap:12px;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .search-box button span{display:none;}
  .search-box button{padding:0 14px;}
  .hero-outer{padding-top:16px;}
  .hero{min-height:340px;border-radius:24px;}
  .hero::before{background:linear-gradient(180deg,rgba(15,61,87,.55) 0%,rgba(15,61,87,.92) 72%,rgba(15,61,87,.96) 100%);}
  .hero-inner{padding:24px;max-width:none;align-self:flex-end;width:100%;}
  .hero h1{font-size:28px;line-height:1.3;}
  .hero .hero-sub{font-size:15px;margin-bottom:20px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-tags{gap:14px;font-size:13px;}
  .hero-tags span:nth-child(3){display:none;}
  .sec{padding:48px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  .rail-card{flex:0 0 78vw;}
  .feat-side{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .stats-strip{grid-template-columns:1fr;padding:24px;}
  .split-grid{gap:24px;}
  .list-row{gap:12px;flex-direction:column;}
  .list-row .lr-thumb{flex:0 0 auto;width:100%;height:auto;aspect-ratio:16/10;}
  .cta-band{padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a .inner{padding:0 18px 18px;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .feat-body{padding:20px;}
  .news-card{padding:20px;}
}

/* roulang page: category1 */
:root{
  --brand:#17506E;
  --brand-deep:#0F3D57;
  --brand-soft:#EAF3F8;
  --accent:#F4713F;
  --ink:#12212B;
  --text:#3D4F5C;
  --muted:#7A8A96;
  --page:#F5F8FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --ok:#2E9E6B;
  --warn:#D9A400;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(18,33,43,.04),0 2px 10px rgba(18,33,43,.05);
  --sh2:0 10px 30px rgba(18,33,43,.10);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--page);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease-out;}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible,.faq-head:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;
}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0;}
h1{font-size:40px;line-height:1.25;}
h2{font-size:28px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;font-weight:600;}
p{margin:0 0 16px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 顶部细信息条 */
.topbar{background:var(--brand-soft);height:36px;display:flex;align-items:center;font-size:13px;color:var(--brand-deep);}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;}
.topbar .tb-left{display:flex;align-items:center;gap:8px;}
.topbar .tb-left i{color:var(--accent);}
.topbar .tb-right{display:flex;gap:20px;}
.topbar .tb-right a{color:var(--brand-deep);font-size:13px;}
.topbar .tb-right a:hover{color:var(--accent);text-decoration:underline;}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);}
.site-header.scrolled{box-shadow:var(--sh1);}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.lt1{font-size:17px;font-weight:700;color:var(--ink);}
.lt2{font-size:13px;color:var(--muted);line-height:1.6;}
.logo:hover .lt1{color:var(--brand);}
.search-form{flex:1 1 auto;max-width:520px;position:relative;min-width:0;}
.search-form input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:999px;
  padding:0 108px 0 44px;font-size:14px;color:var(--ink);background:#fff;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.search-form input::placeholder{color:var(--muted);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,80,110,.14);}
.search-form .s-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:16px;pointer-events:none;}
.search-form .s-btn{
  position:absolute;right:5px;top:5px;height:34px;border:none;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;padding:0 18px;cursor:pointer;
  transition:background .22s ease-out,box-shadow .22s ease-out;
}
.search-form .s-btn:hover{background:var(--brand-deep);box-shadow:var(--sh2);}
.nav-links{display:flex;align-items:center;gap:24px;flex-shrink:0;}
.nav-links>a{
  font-size:15px;color:var(--text);position:relative;padding:6px 0;white-space:nowrap;
}
.nav-links>a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);
  transition:width .22s ease-out;
}
.nav-links>a:hover{color:var(--brand);}
.nav-links>a:hover::after{width:100%;}
.nav-links>a.active{color:var(--brand);font-weight:600;}
.nav-links>a.active::after{width:100%;}
.nav-links>a.btn-main{
  background:var(--brand);color:#fff;border-radius:var(--r-btn);
  padding:10px 20px;font-size:15px;font-weight:600;
  transition:background .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;
}
.nav-links>a.btn-main::after{display:none;}
.nav-links>a.btn-main:hover{background:var(--brand-deep);box-shadow:var(--sh2);color:#fff;transform:translateY(-1px);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--r-btn);width:44px;height:44px;color:var(--brand);font-size:18px;cursor:pointer;flex-shrink:0;}
.mobile-panel{display:none;border-top:1px solid var(--line);padding:16px 0 20px;background:#fff;}
.mobile-panel.open{display:block;}
.mobile-panel .m-links{display:flex;flex-direction:column;margin-top:12px;}
.mobile-panel .m-links a{height:44px;display:flex;align-items:center;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-panel .m-links a.active{color:var(--brand);font-weight:600;}
.mobile-panel .m-cta{display:block;text-align:center;margin-top:16px;background:var(--brand);color:#fff;border-radius:var(--r-btn);height:44px;line-height:44px;font-weight:600;}
.mobile-panel .m-cta:hover{background:var(--brand-deep);color:#fff;}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb-bar .wrap{display:flex;align-items:center;gap:8px;font-size:14px;height:50px;color:var(--muted);overflow:hidden;}
.crumb-bar a{color:var(--muted);}
.crumb-bar a:hover{color:var(--brand);}
.crumb-bar .sep{color:#C3CFD8;}
.crumb-bar .cur{color:var(--ink);font-weight:600;}

/* 分类页1 横幅 */
.cat-banner{
  background:var(--brand-soft);
  min-height:180px;
  display:flex;align-items:center;
  position:relative;overflow:hidden;
  padding:36px 0;
}
.cat-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cat-banner .wrap{position:relative;z-index:2;text-align:center;}
.cat-banner .badge-soft{margin-bottom:12px;}
.cat-banner h1{font-size:34px;line-height:1.3;}
.cat-banner .banner-desc{margin:12px auto 0;max-width:720px;color:var(--text);font-size:16px;}
.cat-stats{display:flex;justify-content:center;gap:56px;margin-top:22px;flex-wrap:wrap;}
.cat-stats .st{text-align:center;}
.cat-stats .num{font-size:28px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.cat-stats .num em{color:var(--accent);font-style:normal;}
.cat-stats .lbl{font-size:14px;color:var(--muted);}

/* 徽章标签 */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:14px;padding:4px 14px;border-radius:999px;line-height:1.7;
}
.badge-hot{background:var(--accent);color:#fff;border-radius:999px;font-size:13px;padding:3px 12px;display:inline-block;}
.tag{display:inline-block;background:#F0F4F7;color:var(--text);font-size:14px;padding:5px 14px;border-radius:999px;transition:background .22s ease-out,color .22s ease-out;}
.tag:hover{background:var(--brand-soft);color:var(--brand);}

/* 筛选条 */
.filter-bar{background:#fff;border-bottom:1px solid var(--line);}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;flex-wrap:wrap;padding:10px 0;}
.filter-tabs{display:flex;gap:10px;flex-wrap:wrap;}
.filter-tabs button{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 18px;font-size:14px;color:var(--text);cursor:pointer;
  transition:background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
}
.filter-tabs button:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft);}
.filter-tabs button.on{background:var(--brand);border-color:var(--brand);color:#fff;}
.filter-sort{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.filter-sort span{margin-right:4px;}
.filter-sort a{color:var(--muted);}
.filter-sort a.on{color:var(--brand);font-weight:600;}

/* 板块 */
.section{padding:80px 0;}
.section.alt{background:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head .eyebrow{font-size:14px;color:var(--accent);font-weight:600;margin-bottom:6px;}
.sec-head p{margin:8px 0 0;color:var(--muted);font-size:15px;max-width:640px;}
.link-more{font-size:15px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.link-more i{transition:transform .22s ease-out;}
.link-more:hover i{transform:translateX(4px);}

/* 静态卡片网格 三列 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card-x{
  background:var(--card);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh1);display:flex;flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.card-x:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.card-x .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:#DDE7EE;}
.card-x .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.card-x:hover .thumb img{transform:scale(1.04);}
.card-x .thumb .badge-soft,.card-x .thumb .badge-hot{position:absolute;top:12px;left:12px;background:#fff;color:var(--brand);}
.card-x .thumb .badge-hot{background:var(--accent);color:#fff;}
.card-x .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-x h3{font-size:20px;margin-bottom:10px;transition:color .22s ease-out;}
.card-x:hover h3{color:var(--brand);}
.card-x .excerpt{font-size:15px;color:var(--muted);line-height:1.75;margin-bottom:18px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-x .meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;}
.card-x .meta i{color:var(--accent);margin-right:5px;}

/* 步骤流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.flow-item{background:#fff;border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh1);position:relative;transition:transform .22s ease-out,box-shadow .22s ease-out;}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.flow-item .step-no{
  width:40px;height:40px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.flow-item h4{margin-bottom:8px;}
.flow-item p{font-size:15px;color:var(--muted);margin:0;line-height:1.8;}

/* 提示含义对照 - 内容行 */
.rows{border-top:1px solid var(--line);}
.row-item{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);align-items:flex-start;}
.row-item .row-thumb{width:180px;height:110px;flex-shrink:0;border-radius:var(--r-img);overflow:hidden;background:#DDE7EE;}
.row-item .row-thumb img{width:100%;height:100%;object-fit:cover;}
.row-item .row-main{flex:1;min-width:0;}
.row-item h3{font-size:17px;margin-bottom:6px;transition:color .22s ease-out;}
.row-item:hover h3{color:var(--brand);}
.row-item p{font-size:15px;color:var(--muted);margin:0 0 8px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.row-item .row-meta{font-size:13px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;}
.row-item .row-meta i{color:var(--brand);margin-right:4px;}

/* 双栏内容区 */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.panel{background:#fff;border-radius:var(--r-card);padding:32px;box-shadow:var(--sh1);}
.panel h3{margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.panel h3 i{color:var(--accent);font-size:17px;}
.list-check{list-style:none;padding:0;margin:0;}
.list-check li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15px;line-height:1.8;}
.list-check li::before{content:"\2713";position:absolute;left:0;top:0;color:var(--ok);font-weight:700;}
.list-warn{list-style:none;padding:0;margin:0;}
.list-warn li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15px;line-height:1.8;}
.list-warn li::before{content:"!";position:absolute;left:4px;top:0;color:var(--warn);font-weight:700;}

/* 提示框 */
.tip-box{background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 var(--r-btn) var(--r-btn) 0;padding:18px 22px;font-size:15px;color:var(--brand-deep);line-height:1.8;margin:24px 0;}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .22s ease-out;}
.faq-item.open{border-color:var(--brand);}
.faq-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;text-align:left;padding:20px 24px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-head .fi{width:22px;height:22px;flex-shrink:0;position:relative;}
.faq-head .fi::before,.faq-head .fi::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out;
}
.faq-head .fi::before{left:0;top:10px;width:22px;height:2px;}
.faq-head .fi::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-head .fi::after{transform:rotate(90deg);opacity:0;}
.faq-body{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-body p{padding:0 24px 22px;margin:0;font-size:15px;line-height:1.85;color:var(--text);}
.faq-item.open .faq-body{max-height:400px;}

/* CTA */
.cta-band{background:var(--brand-deep);color:#fff;padding:72px 0;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);margin:0;font-size:15px;max-width:620px;}
.btn-group-x{display:flex;gap:14px;flex-wrap:wrap;}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;
  border:none;border-radius:var(--r-btn);padding:13px 26px;font-size:15px;font-weight:600;
  transition:background .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;cursor:pointer;
}
.btn-main:hover{background:var(--brand-deep);box-shadow:var(--sh2);color:#fff;transform:translateY(-2px);}
.btn-accent{background:var(--accent);}
.btn-accent:hover{background:#DE5C2B;}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;box-shadow:none;}
.btn-line{background:#fff;color:var(--brand);border:1px solid var(--line);}
.btn-line:hover{background:var(--brand-soft);color:var(--brand);}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:44px;flex-wrap:wrap;}
.pager a,.pager span.pg{
  width:36px;height:36px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--text);font-size:14px;
  transition:background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
  font-variant-numeric:tabular-nums;
}
.pager a:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft);}
.pager .cur{background:var(--brand);color:#fff;border-color:var(--brand);}
.pager .dots{border:none;background:none;width:auto;}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.site-footer .logo-mark{background:rgba(255,255,255,.14);}
.site-footer .lt1{color:#fff;}
.site-footer .lt2{color:rgba(255,255,255,.55);}
.site-footer .f-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.65);margin:18px 0 20px;}
.f-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.f-links{list-style:none;padding:0;margin:0;}
.f-links li{margin-bottom:11px;}
.f-links a{font-size:14px;color:rgba(255,255,255,.7);}
.f-links a:hover{color:var(--accent);text-decoration:underline;}
.f-social{display:flex;gap:12px;}
.f-social a{
  width:36px;height:36px;border-radius:999px;background:rgba(255,255,255,.1);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:14px;
  transition:background .22s ease-out,color .22s ease-out;
}
.f-social a:hover{background:var(--accent);color:#fff;}
.f-contact div{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:12px;line-height:1.7;}
.f-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.f-form{margin-top:18px;}
.f-form label{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:8px;}
.f-form .field{display:flex;gap:8px;}
.f-form input{
  flex:1;min-width:0;height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px;
}
.f-form input::placeholder{color:rgba(255,255,255,.42);}
.f-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(244,113,63,.2);}
.f-form button{
  height:44px;border:none;border-radius:var(--r-btn);background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;padding:0 18px;cursor:pointer;transition:background .22s ease-out;
}
.f-form button:hover{background:#DE5C2B;}
.copyright{border-top:1px solid rgba(255,255,255,.13);padding:20px 0;}
.copyright .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.copyright .site-domain{color:rgba(255,255,255,.45);}

/* 返回顶部 */
#toTop{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:999px;
  background:var(--brand);color:#fff;border:none;font-size:16px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease-out,transform .25s ease-out,visibility .25s,background .22s ease-out;
  box-shadow:var(--sh2);z-index:1040;
}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0);}
#toTop:hover{background:var(--brand-deep);}

/* 响应式 */
@media (max-width:1199px){
  .nav-links{gap:18px;}
  .nav-links>a{font-size:14px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid .f-form-col{grid-column:span 3;}
}
@media (max-width:991px){
  .search-form{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-inner{height:68px;justify-content:space-between;}
  .mobile-panel .m-search{max-width:100%;}
  .section{padding:64px 0;}
  .cat-banner h1{font-size:28px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .two-col{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-grid .f-form-col{grid-column:span 2;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .topbar{display:none;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  .section{padding:48px 0;}
  .cat-banner{padding:28px 0;min-height:auto;}
  .cat-stats{gap:32px;}
  .cat-stats .num{font-size:22px;}
  .grid-3{grid-template-columns:1fr;}
  .row-item{flex-direction:column;gap:14px;}
  .row-item .row-thumb{width:100%;height:auto;aspect-ratio:16/10;}
  .panel{padding:24px;}
  .filter-inner{min-height:auto;padding:12px 0;}
  .sec-head{margin-bottom:26px;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid .f-form-col{grid-column:span 1;}
  .logo-text .lt1{font-size:15px;}
  .logo-text .lt2{font-size:12px;}
  .cat-stats{gap:24px;}
  .faq-head{padding:16px 18px;font-size:15px;}
  .faq-body p{padding:0 18px 18px;}
  .flow{grid-template-columns:1fr;}
  .btn-group-x{width:100%;}
  .btn-group-x .btn-main{flex:1;justify-content:center;}
  #toTop{right:16px;bottom:16px;}
}

/* roulang page: article */
:root{
  --primary:#17506E;
  --primary-dark:#0F3D57;
  --primary-light:#EAF3F8;
  --accent:#F4713F;
  --ink:#12212B;
  --body:#3D4F5C;
  --muted:#7A8A96;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --success:#2E9E6B;
  --warn:#D9A400;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(18,33,43,.04),0 2px 10px rgba(18,33,43,.05);
  --shadow-2:0 10px 30px rgba(18,33,43,.10);
  --container:1200px;
  --gutter:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary-dark)}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:0}
h1{font-size:40px;line-height:1.25}
h2{font-size:28px;line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* 顶部细信息条 */
.topbar{
  height:36px;
  background:var(--primary-light);
  color:var(--body);
  font-size:13px;
  line-height:1.6;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar-inner > span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:18px;flex:none}
.topbar-links a{color:var(--body)}
.topbar-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

/* 主导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease-out;
}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);flex:none;
}
.logo-mark svg{width:24px;height:24px;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.lt1{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:0}
.lt2{font-size:13px;color:var(--muted);font-weight:400;margin-top:2px}
.logo:hover .lt1{color:var(--primary)}

.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:520px;
  min-width:260px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:#fff;
  display:flex;
  align-items:center;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,80,110,.12);
}
.nav-search .fa-magnifying-glass{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--muted);font-size:16px;pointer-events:none;
}
.nav-search input{
  width:100%;height:100%;border:0;outline:0;background:transparent;
  padding:0 100px 0 42px;font-size:14px;color:var(--ink);border-radius:var(--r-pill);
}
.nav-search input::placeholder{color:var(--muted)}
.search-btn{
  position:absolute;right:5px;top:5px;bottom:5px;
  padding:0 18px;border:0;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:13px;font-weight:600;
  transition:background .2s ease-out;
}
.search-btn:hover{background:var(--primary-dark)}

.nav-links{display:flex;align-items:center;gap:24px;flex:none}
.nav-links > a:not(.btn-main){
  font-size:15px;color:var(--body);position:relative;padding:8px 0;white-space:nowrap;
}
.nav-links > a:not(.btn-main)::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);transition:width .22s ease-out;
}
.nav-links > a:not(.btn-main):hover{color:var(--primary)}
.nav-links > a:not(.btn-main):hover::after{width:100%}
.nav-links > a.active{color:var(--primary);font-weight:600}
.nav-links > a.active::after{width:100%}

.btn-main,.btn-ghost,.btn-light,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;text-decoration:none;font-weight:600;line-height:1;
  transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-main{
  background:var(--primary);color:#fff;padding:12px 22px;
  border-radius:var(--r-pill);font-size:14px;
}
.btn-main:hover{background:var(--primary-dark);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn-ghost{
  background:#fff;color:var(--primary);border-color:var(--line);
  padding:11px 20px;border-radius:var(--r-pill);font-size:14px;
}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary);border-color:#CFE2EC}
.btn-light{
  background:#fff;color:var(--primary);padding:12px 22px;
  border-radius:var(--r-pill);font-size:14px;
}
.btn-light:hover{background:var(--primary-light);color:var(--primary);box-shadow:var(--shadow-2)}
.btn-accent{
  background:var(--accent);color:#fff;padding:13px 24px;
  border-radius:var(--r-pill);font-size:14px;
}
.btn-accent:hover{background:#E05F2E;color:#fff;box-shadow:var(--shadow-2);transform:translateY(-1px)}
.nav-links .btn-main{padding:10px 18px;font-size:14px}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:var(--radius-btn);color:var(--primary);
  align-items:center;justify-content:center;font-size:18px;flex:none;
}
.nav-toggle:hover{background:var(--primary-light)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.mobile-panel.open{display:block}
.mobile-search{max-width:none;min-width:0;width:100%;margin-bottom:14px}
.mobile-links{list-style:none;margin:0;padding:0}
.mobile-links li a{
  display:flex;align-items:center;height:44px;font-size:15px;color:var(--body);
  border-bottom:1px solid var(--line);padding:0 4px;
}
.mobile-links li a.active{color:var(--primary);font-weight:600}
.mobile-panel .btn-main{width:100%;margin-top:16px}

/* 面包屑 */
.breadcrumb{font-size:13px;color:var(--muted);margin:0 0 22px}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0}
.crumb-list a{color:var(--body)}
.crumb-list a:hover{color:var(--primary)}
.crumb-list .sep{color:#B7C2CC}
.crumb-list li:last-child{color:var(--muted)}

/* 文章头部 */
.article-hero{background:#fff;padding:24px 0 44px;border-bottom:1px solid var(--line)}
.article-head-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:32px;align-items:center}
.article-head-main{min-width:0}
.badge{
  display:inline-flex;align-items:center;justify-content:center;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary);
  font-size:14px;font-weight:600;line-height:1.4;
}
.badge-hot{background:var(--accent);color:#fff}
.article-title{
  font-size:40px;line-height:1.25;font-weight:700;color:var(--ink);
  margin:14px 0 18px;overflow-wrap:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--primary);font-size:14px}
.head-cover{
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  aspect-ratio:16/10;background:var(--primary-light);
}
.head-cover img{width:100%;height:100%;object-fit:cover}

/* 正文布局 */
.article-main{padding:48px 0 80px}
.article-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px;align-items:start}
.article-card{
  background:var(--card);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:40px;min-width:0;
}
.rich-content{overflow-wrap:break-word;word-break:break-word}
.rich-content > *:first-child{margin-top:0}
.rich-content p{margin:0 0 18px;font-size:16px;line-height:1.9;color:var(--body)}
.rich-content h2{
  font-size:28px;line-height:1.35;color:var(--ink);
  margin:40px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--line);
  scroll-margin-top:100px;
}
.rich-content h3{
  font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:28px 0 12px;scroll-margin-top:100px;
}
.rich-content h2 + p,.rich-content h3 + p{margin-top:0}
.rich-content ul,.rich-content ol{margin:0 0 18px;padding-left:24px}
.rich-content li{margin-bottom:8px;line-height:1.9}
.rich-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.rich-content a:hover{color:var(--primary-dark)}
.rich-content blockquote{
  margin:24px 0;padding:16px 20px;background:var(--primary-light);
  border-left:3px solid var(--primary);border-radius:10px;color:var(--body);
}
.rich-content blockquote p:last-child{margin-bottom:0}
.rich-content img{border-radius:var(--radius-img);margin:24px auto;height:auto}
.rich-content figure{margin:28px 0}
.rich-content figure img{margin:0 auto}
.rich-content figcaption{font-size:13px;line-height:1.6;color:var(--muted);text-align:center;margin-top:10px}
.rich-content table{
  width:100%;border-collapse:collapse;margin:24px 0;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
  font-size:14px;line-height:1.7;
}
.rich-content th{
  background:var(--primary-light);color:var(--ink);font-weight:600;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
}
.rich-content td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--body)}
.rich-content tr:last-child td{border-bottom:0}
.rich-content pre{
  background:var(--primary-dark);color:#fff;padding:16px 18px;
  border-radius:10px;overflow:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.rich-content code{
  background:var(--primary-light);color:var(--primary-dark);
  padding:2px 6px;border-radius:10px;font-size:14px;
}
.rich-content pre code{background:none;color:inherit;padding:0;border-radius:0}
.rich-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.rich-content .tip,.rich-content .note,.rich-content .warning{
  margin:24px 0;padding:16px 18px;border-radius:10px;
  background:var(--primary-light);border-left:3px solid var(--primary);
  font-size:16px;line-height:1.9;color:var(--body);
}
.rich-content .warning{background:#FFF7E6;border-left-color:var(--warn)}
.rich-content .tip p:last-child,.rich-content .note p:last-child,.rich-content .warning p:last-child{margin-bottom:0}

.empty-state{padding:48px 20px;text-align:center}
.empty-icon{
  width:64px;height:64px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:16px;
}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px}

/* 标签、翻页、相关 */
.tags-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  border-top:1px solid var(--line);margin-top:34px;padding-top:22px;
}
.tags-label{font-size:14px;color:var(--muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;
  background:var(--bg);border:1px solid var(--line);color:var(--body);
  font-size:13px;padding:6px 12px;border-radius:var(--r-pill);
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.tag:hover{background:var(--primary-light);color:var(--primary);border-color:#CFE2EC}

.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}
.pager-item{
  display:block;border:1px solid var(--line);border-radius:10px;
  padding:15px 18px;background:#fff;
  transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.pager-item:hover{background:var(--primary-light);border-color:#CFE2EC;color:var(--body)}
.pager-label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.pager-title{display:block;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5}
.pager-item:hover .pager-title{color:var(--primary)}
.pager-item.next{text-align:right}

.related-section{margin-top:36px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.section-head h2{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600}
.text-link i{transition:transform .2s ease-out}
.text-link:hover i{transform:translateX(4px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.related-card{
  display:block;background:#fff;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--primary-light)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:14px 16px 18px}
.related-body h3{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover h3{color:var(--primary)}
.related-meta{font-size:13px;color:var(--muted)}
.back-row{margin-top:24px;display:flex;justify-content:center}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0}
.toc-card{
  position:sticky;top:96px;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;
}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:17px;font-weight:600;color:var(--ink)}
.toc-toggle{
  display:none;border:0;background:var(--primary-light);color:var(--primary);
  border-radius:var(--r-pill);padding:6px 12px;font-size:13px;
}
.toc-list{list-style:none;margin:12px 0 0;padding:0;max-height:360px;overflow:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.7;color:var(--body);
  border-left:2px solid var(--line);padding:7px 10px 7px 12px;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.toc-list a:hover{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary)}
.toc-list a.active{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary);font-weight:600}
.toc-list .toc-sub a{padding-left:26px;font-size:13px}
.side-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:20px}
.side-title{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:12px}
.mini-list{list-style:none;margin:0;padding:0}
.mini-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.mini-item:first-child{padding-top:0}
.mini-item:last-child{padding-bottom:0;border-bottom:0}
.mini-thumb{width:88px;height:60px;border-radius:12px;overflow:hidden;flex:none;background:var(--primary-light)}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-info{min-width:0}
.mini-info a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14px;font-weight:600;line-height:1.6;color:var(--ink);margin-bottom:4px;
}
.mini-info a:hover{color:var(--primary)}
.mini-meta{font-size:13px;color:var(--muted)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  display:inline-flex;font-size:13px;color:var(--body);
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 12px;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.tag-cloud a:hover{background:var(--primary-light);color:var(--primary);border-color:#CFE2EC}
.side-cta{
  background:linear-gradient(160deg,var(--primary),var(--primary-dark));
  color:rgba(255,255,255,.8);border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow-1);
}
.side-cta h3{color:#fff;font-size:20px;line-height:1.5;font-weight:600;margin-bottom:8px}
.side-cta p{font-size:14px;line-height:1.7;margin-bottom:16px;color:rgba(255,255,255,.8)}
.side-cta .btn-light{width:100%}

/* FAQ */
.faq-section{margin-top:36px}
.faq-section > h2{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:18px}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;margin-bottom:12px;background:#fff;
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;border-radius:0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--primary-light);color:var(--primary);box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq-accordion .accordion-button::after{
  background-image:none!important;content:"+";font-size:22px;line-height:1;
  color:var(--primary);width:auto;height:auto;transform:none;margin-left:auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq-accordion .accordion-body{
  padding:16px 20px 20px;font-size:15px;line-height:1.85;color:var(--body);background:#fff;
}
.faq-accordion .accordion-body p:last-child{margin-bottom:0}

/* 转化区 */
.cta-band{
  padding:64px 0;
  background:linear-gradient(90deg,rgba(15,61,87,.94),rgba(15,61,87,.86)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-copy{max-width:640px}
.cta-copy h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:10px}
.cta-copy p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}

/* 页脚 */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.site-footer .logo{margin-bottom:16px}
.site-footer .logo-mark{background:rgba(255,255,255,.14);box-shadow:none}
.site-footer .lt1{color:#fff}
.site-footer .lt2{color:rgba(255,255,255,.6)}
.f-brand p{font-size:14px;line-height:1.7;margin:0 0 20px;color:rgba(255,255,255,.7)}
.f-social{display:flex;gap:10px}
.f-social a{
  width:36px;height:36px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  transition:background .2s ease-out,color .2s ease-out;
}
.f-social a:hover{background:var(--accent);color:#fff}
.f-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px}
.f-links{list-style:none;margin:0;padding:0}
.f-links li{margin-bottom:10px}
.f-links a{font-size:14px;color:rgba(255,255,255,.7)}
.f-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.f-contact div{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;margin-bottom:10px;color:rgba(255,255,255,.7)}
.f-contact i{color:var(--accent);margin-top:4px;flex:none}
.f-form{margin-top:18px}
.f-form label{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:8px}
.f-form .field{display:flex;gap:8px}
.f-form input{
  flex:1;min-width:0;height:44px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);
  color:#fff;padding:0 12px;font-size:13px;outline:0;
}
.f-form input::placeholder{color:rgba(255,255,255,.45)}
.f-form input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.12)}
.f-form button{
  height:44px;padding:0 16px;border:0;border-radius:10px;
  background:var(--accent);color:#fff;font-size:13px;font-weight:600;
}
.f-form button:hover{background:#E05F2E}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.footer-bottom p{margin:0;font-size:13px;line-height:1.6;color:rgba(255,255,255,.55)}

/* 返回顶部 */
#backTop{
  position:fixed;right:24px;bottom:24px;z-index:1100;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:0;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);font-size:16px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s ease-out,background .2s ease-out;
}
#backTop.show{opacity:1;visibility:visible;transform:none}
#backTop:hover{background:var(--primary-dark)}

@media (max-width:1199px){
  .nav-search{max-width:420px}
  .nav-links{gap:18px}
  .article-head-grid{grid-template-columns:minmax(0,1fr) 330px}
}
@media (max-width:991px){
  .nav-wrap{min-height:68px}
  .nav-search{display:none}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .article-head-grid{grid-template-columns:1fr;gap:24px}
  .article-title{font-size:32px}
  .head-cover{max-width:520px}
  .article-layout{grid-template-columns:1fr}
  .sidebar{margin-top:4px}
  .toc-card{position:static}
  .toc-toggle{display:inline-flex}
  .toc-list{display:none}
  .toc-card.open .toc-list{display:block}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .topbar{display:none}
  .wrap{padding:0 16px}
  .article-hero{padding:20px 0 28px}
  .article-title{font-size:28px}
  .article-main{padding:32px 0 56px}
  .article-card{padding:24px 20px}
  .related-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager-item.next{text-align:left}
  .cta-band{padding:48px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-light{flex:1;justify-content:center}
}
@media (max-width:575px){
  .nav-wrap{min-height:64px;gap:12px}
  .logo-mark{width:32px;height:32px}
  .lt1{font-size:15px}
  .lt2{font-size:13px}
  .meta-row{gap:10px 14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .side-card,.toc-card{padding:16px}
  .article-card{padding:20px 16px}
}

/* roulang page: category2 */
:root{
  --brand:#17506E;
  --brand-dark:#0F3D57;
  --brand-light:#EAF3F8;
  --accent:#F4713F;
  --ink:#12212B;
  --text:#3D4F5C;
  --muted:#7A8A96;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --ok:#2E9E6B;
  --warn:#D9A400;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(18,33,43,.04),0 2px 10px rgba(18,33,43,.05);
  --sh2:0 10px 30px rgba(18,33,43,.10);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{text-decoration:none;color:var(--brand);}
button,input{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-light);border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;font-size:13px;color:var(--brand);}
.topbar-note{display:inline-flex;align-items:center;gap:8px;color:var(--brand);}
.topbar-note i{color:var(--accent);font-size:13px;}
.topbar-links{display:flex;align-items:center;gap:20px;}
.topbar-links a{color:var(--brand);opacity:.82;transition:opacity .2s,color .2s;}
.topbar-links a:hover{opacity:1;color:var(--brand-dark);text-decoration:underline;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.scrolled{box-shadow:var(--sh1);}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:34px;height:34px;border-radius:var(--r-btn);background:var(--brand);display:grid;place-items:center;flex:0 0 auto;}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.lt1{font-size:17px;font-weight:700;color:var(--ink);}
.lt2{font-size:13px;font-weight:400;color:var(--muted);}
.nav-search{flex:1 1 320px;max-width:520px;min-width:0;height:44px;display:flex;align-items:center;gap:8px;padding-left:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);transition:border-color .2s,box-shadow .2s;}
.nav-search i{font-size:16px;color:var(--muted);}
.nav-search input{flex:1 1 auto;min-width:0;height:40px;border:0;outline:none;background:transparent;font-size:14px;color:var(--text);}
.nav-search input::placeholder{color:var(--muted);}
.nav-search button{flex:0 0 auto;margin-right:5px;height:34px;padding:0 16px;border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:14px;cursor:pointer;transition:background .2s;}
.nav-search button:hover{background:var(--brand-dark);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,80,110,.12);}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto;font-size:15px;flex:0 0 auto;}
.nav-links a:not(.btn-main){position:relative;padding:4px 0;color:var(--text);transition:color .2s;}
.nav-links a:not(.btn-main)::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--brand);transition:width .22s ease-out;}
.nav-links a:not(.btn-main):hover{color:var(--brand);}
.nav-links a:not(.btn-main):hover::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{width:100%;}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--brand);color:#fff;font-size:15px;line-height:1.4;padding:11px 20px;border-radius:var(--r-btn);border:1px solid transparent;transition:background .22s,box-shadow .22s,transform .22s;white-space:nowrap;cursor:pointer;}
.btn-main:hover,.btn-main:focus{background:var(--brand-dark);color:#fff;box-shadow:var(--sh2);}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;cursor:pointer;}
.mobile-panel{display:none;padding:16px 24px 22px;background:#fff;border-top:1px solid var(--line);}
.mobile-panel.open{display:block;}
.mobile-panel .nav-search{max-width:none;margin-bottom:10px;}
.mobile-panel nav a{display:block;height:44px;line-height:44px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-panel nav a.active{color:var(--brand);font-weight:600;}
.mobile-panel .btn-main{width:100%;margin-top:18px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:20px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.crumb a{color:var(--muted);transition:color .2s;}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:#C3CED6;}
.crumb .current{color:var(--text);}

/* ---------- 分类页头 ---------- */
.cat-head{padding:20px 0 0;}
.cat-head-inner{
  display:flex;align-items:center;gap:40px;
  min-height:140px;padding:24px 36px;border-radius:var(--r-card);overflow:hidden;
  background-image:linear-gradient(90deg,rgba(15,61,87,.95) 0%,rgba(23,80,110,.80) 52%,rgba(23,80,110,.42) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--sh1);
}
.cat-head-left{flex:1 1 auto;min-width:0;}
.cat-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);color:#fff;font-size:13px;line-height:1.6;margin-bottom:8px;}
.cat-head h1{font-size:40px;line-height:1.25;font-weight:700;color:#fff;letter-spacing:0;}
.cat-head-desc{flex:0 1 400px;margin:0;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);}

/* ---------- 列表区 ---------- */
.list-section{padding:56px 0 72px;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);}
.section-sub{font-size:14px;color:var(--muted);}
.list-row{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);transition:transform .22s ease-out;}
.list-rows .list-row:first-child{padding-top:0;}
.list-row .thumb{flex:0 0 180px;width:180px;height:110px;border-radius:var(--r-img);overflow:hidden;background:#E6EDF2;display:block;}
.list-row .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.list-row:hover .thumb img{transform:scale(1.04);}
.list-row:hover h3 a{color:var(--brand);}
.row-body{flex:1 1 auto;min-width:0;}
.row-meta-top{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:6px;font-size:13px;color:var(--muted);}
.badge{display:inline-flex;align-items:center;padding:2px 12px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand);font-size:13px;line-height:1.7;}
.badge.hot{background:var(--accent);color:#fff;}
.row-body h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:6px;}
.row-body h3 a{color:var(--ink);transition:color .2s;}
.row-body p{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:36px;}
.page-btn{width:36px;height:36px;display:inline-grid;place-items:center;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text);font-size:14px;transition:background .2s,color .2s,border-color .2s;}
.page-btn:hover{background:var(--brand-light);color:var(--brand);border-color:var(--brand-light);}
.page-btn.current{background:var(--brand);border-color:var(--brand);color:#fff;}
.page-btn.current:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:96px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh1);margin-bottom:20px;}
.side-card h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:14px;}
.hot-list li{border-bottom:1px dashed var(--line);}
.hot-list li:last-child{border-bottom:0;}
.hot-list a{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:14px;line-height:1.6;color:var(--text);transition:color .2s;}
.hot-list a:hover{color:var(--brand);}
.hot-list .num{flex:0 0 auto;width:20px;font-size:14px;color:var(--accent);font-weight:700;line-height:1.6;font-variant-numeric:tabular-nums;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud a{display:inline-block;padding:6px 14px;border-radius:var(--r-pill);background:#F1F5F8;color:var(--muted);font-size:13px;line-height:1.6;transition:background .2s,color .2s;}
.tag-cloud a:hover{background:var(--brand-light);color:var(--brand);}
.side-cta{background:var(--brand-dark);border:0;color:#fff;padding:26px 22px;}
.side-cta h3{color:#fff;font-size:20px;margin-bottom:10px;}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin-bottom:18px;}
.btn-light{display:inline-flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:11px 18px;border-radius:var(--r-btn);background:#fff;color:var(--brand);font-size:15px;border:1px solid transparent;transition:background .22s,color .22s,box-shadow .22s;}
.btn-light:hover{background:var(--brand-light);color:var(--brand-dark);box-shadow:var(--sh2);}
.tip-card{background:#fff;border-left:3px solid var(--warn);}
.tip-card p{font-size:14px;line-height:1.8;color:var(--text);}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 44px;border-radius:var(--r-card);background:var(--brand-dark);box-shadow:var(--sh1);}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;margin-bottom:8px;}
.cta-inner p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:640px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}
.cta-actions .btn-main{background:var(--accent);}
.cta-actions .btn-main:hover{background:#DA5C2E;}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.4);color:#fff;font-size:15px;transition:background .22s,color .22s;}
.btn-ghost:hover{background:#fff;color:var(--brand-dark);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#fff;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.35fr;gap:32px;}
.site-footer .logo{margin-bottom:0;}
.site-footer .logo-mark{background:rgba(255,255,255,.14);}
.site-footer .lt1{color:#fff;}
.site-footer .lt2{color:rgba(255,255,255,.62);}
.f-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:14px 0 16px;}
.f-social{display:flex;gap:10px;}
.f-social a{width:36px;height:36px;border-radius:var(--r-btn);background:rgba(255,255,255,.12);color:#fff;display:inline-grid;place-items:center;transition:background .22s,color .22s;}
.f-social a:hover{background:var(--accent);color:#fff;}
.f-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:14px;}
.f-links a{display:inline-block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s;}
.f-links a:hover{color:var(--accent);text-decoration:underline;}
.f-contact div{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);padding:4px 0;}
.f-contact i{margin-top:5px;color:rgba(255,255,255,.55);}
.f-form label{display:block;font-size:13px;color:rgba(255,255,255,.6);margin:16px 0 8px;}
.f-form .field{display:flex;gap:8px;}
.f-form input{flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s;}
.f-form input::placeholder{color:rgba(255,255,255,.45);}
.f-form input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.15);}
.f-form button{flex:0 0 auto;height:44px;padding:0 18px;border:0;border-radius:var(--r-btn);background:var(--accent);color:#fff;font-size:14px;cursor:pointer;transition:opacity .2s;}
.f-form button:hover{opacity:.9;}
.footer-bottom{margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.15);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.6);}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;border:0;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:var(--sh1);opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .25s,transform .25s,background .2s;z-index:90;cursor:pointer;}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:var(--brand-dark);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:16px;font-size:14px;}
  .cat-head h1{font-size:28px;}
  .list-section{padding:48px 0 64px;}
}
@media (max-width:991px){
  .header-inner{height:68px;gap:12px;}
  .header-inner .nav-search{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-grid;place-items:center;}
  .cat-head-inner{flex-direction:column;align-items:flex-start;gap:12px;padding:26px 24px;min-height:0;background-image:linear-gradient(90deg,rgba(15,61,87,.95) 0%,rgba(23,80,110,.82) 100%),url("/assets/images/backpic/back-2.webp");}
  .cat-head-desc{flex:1 1 auto;font-size:14px;}
  .side-sticky{position:static;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 28px;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .list-section{padding:40px 0 56px;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .topbar{display:none;}
  .header-inner{height:62px;}
  .lt1{font-size:15px;}
  .lt2{font-size:12px;}
  .cat-head{padding-top:12px;}
  .cat-head h1{font-size:28px;}
  .list-section{padding:32px 0 48px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:4px;}
  .section-head h2{font-size:22px;}
  .list-row{flex-direction:column;gap:14px;}
  .list-row .thumb{width:100%;height:170px;flex:none;}
  .cta-band{padding-bottom:48px;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .to-top{right:16px;bottom:16px;}
}