/* roulang page: index */
:root{
  --brand:#1A56A8;
  --brand-deep:#123A72;
  --brand-soft:#EAF2FE;
  --accent:#F0A22E;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ink:#0E1F38;
  --text:#47566E;
  --muted:#7A889C;
  --line:#E3EAF4;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,42,84,.04),0 10px 24px -14px rgba(16,42,84,.20);
  --shadow-hover:0 1px 2px rgba(16,42,84,.05),0 20px 34px -20px rgba(16,42,84,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 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-title{position:relative;font-size:30px;padding-left:16px;letter-spacing:.01em}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand)}
.sec-sub{color:var(--muted);font-size:15px;max-width:620px;margin-top:10px;padding-left:16px}

/* 顶栏 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,42,84,.35)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:800;color:var(--ink);font-size:17px}
.brand-suffix{font-size:12px;color:var(--muted);letter-spacing:.04em}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text);font-weight:500}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}

.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease-out}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand)}
.mega-trigger .caret{transition:transform .2s ease-out}
.mega.open .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{position:absolute;right:0;top:calc(100% + 12px);width:720px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 50px -28px rgba(16,42,84,.40);padding:24px;display:grid;grid-template-columns:1fr 1fr 200px;gap:24px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .16s ease-out}
.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:700;margin-bottom:12px}
.mega-link{display:block;padding:8px 10px;margin:0 -10px;border-radius:10px;font-size:14px;color:var(--text)}
.mega-link:hover{background:var(--brand-soft);color:var(--brand)}
.mega-mini{padding:10px 0;border-bottom:1px dashed var(--line)}
.mega-mini:last-child{border-bottom:none}
.mega-mini a{font-size:14px;color:var(--ink);font-weight:600;display:block}
.mega-mini a:hover{color:var(--brand)}
.mega-mini span{font-size:12px;color:var(--muted)}
.mega-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.mega-card-body{padding:12px 14px 14px}
.mega-card-body p{font-size:13px;color:var(--muted);margin-bottom:10px}
.mega-card-body .btn{width:100%;justify-content:center;padding:8px 12px;font-size:13px}

.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 24px}
.mobile-drawer.open{display:block}
.mobile-drawer .nav-link{display:block;padding:12px 10px;font-size:16px}
.mobile-drawer .mega-link{font-size:15px}
.drawer-title{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:700;margin:18px 0 8px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease-out;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-hero{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-hero:hover{background:rgba(255,255,255,.14)}
.btn-invert{background:#fff;color:var(--brand-deep)}
.btn-invert:hover{transform:translateY(-2px);background:#F2F7FF}
.btn:focus-visible,.nav-link:focus-visible,.mega-trigger:focus-visible,a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,86,168,.28)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(120deg,#0F2E5C 0%,#123A72 55%,#1A56A8 100%);color:#fff}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;min-height:560px;padding:56px 0}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);font-size:13px;letter-spacing:.04em;margin-bottom:20px}
.hero h1{color:#fff;font-size:44px;line-height:1.24;letter-spacing:.01em}
.hero h1 .hl{position:relative;white-space:nowrap}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;border-radius:6px;background:rgba(240,162,46,.42);z-index:-1}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:36px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:.02em}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.72)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;box-shadow:0 40px 60px -40px rgba(0,0,0,.6)}
.hero-media .float-tag{position:absolute;left:18px;top:18px;background:var(--accent);color:#3A2504;font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(180deg,rgba(15,46,92,0) 0%,rgba(245,248,253,1) 100%);pointer-events:none}

/* 横滑 */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.rail-nav{display:flex;gap:10px}
.rail-btn{width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:16px;transition:all .2s ease-out}
.rail-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 20px;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.rail::-webkit-scrollbar-thumb:hover{background:#C9D6E8}
.rail-item{flex:0 0 260px;scroll-snap-align:start}
@media (max-width:640px){.rail-item{flex:0 0 74%}}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:all .2s ease-out;display:flex;flex-direction:column;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;object-fit:cover;border-radius:0;transition:transform .35s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.poster .card-media img{aspect-ratio:3/4}
.wide .card-media img{aspect-ratio:16/9}
.badge{position:absolute;left:12px;top:12px;background:var(--accent);color:#3A2504;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.02em}
.badge-soft{position:absolute;right:12px;top:12px;background:rgba(14,31,56,.72);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto}
.card-meta .dot{width:4px;height:4px;border-radius:999px;background:#C9D6E8}
.card-link{font-size:14px;font-weight:600;color:var(--brand)}
.card-link:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* 片单拼贴 */
.collage{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:auto auto;gap:24px}
.collage .span-2{grid-row:span 2}
.collage-tile{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-card);transition:all .2s ease-out;min-height:180px}
.collage-tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.collage-tile img{width:100%;height:100%;object-fit:cover;border-radius:0}
.collage .big{min-height:420px}
.collage-cap{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(180deg,rgba(10,26,50,0) 0%,rgba(10,26,50,.86) 100%);color:#fff}
.collage-cap h3{color:#fff;font-size:20px;margin-bottom:6px}
.collage-cap p{font-size:14px;color:rgba(255,255,255,.80)}
.collage .small .collage-cap{padding:16px}
.collage .small .collage-cap h3{font-size:16px}
.collage .small .collage-cap p{font-size:13px}

/* CMS 列表 */
.cms-layout{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.cms-aside{position:sticky;top:96px}
.cms-aside h2{font-size:28px;position:relative;padding-left:16px}
.cms-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand)}
.cms-aside p{margin-top:14px;font-size:15px;color:var(--muted)}
.cms-aside .btn{margin-top:22px}
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cms-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);transition:all .2s ease-out;display:flex;flex-direction:column;gap:12px}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.cms-card-title{font-size:17px;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card-title:hover{color:var(--brand)}
.cms-card-desc{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff}
.empty-art{width:96px;height:96px;margin:0 auto 18px;border-radius:20px;background:linear-gradient(135deg,var(--brand-soft) 0%,#D7E6FB 100%)}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px}

/* CTA 条 */
.cta-band{background:linear-gradient(120deg,#123A72 0%,#1A56A8 100%);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:30px}
.cta-inner p{color:rgba(255,255,255,.82);margin-top:10px;font-size:15px}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-card);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:17px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex-shrink:0;width:26px;height:26px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .2s ease-out}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.75;color:var(--text)}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8}
.footer-link{display:block;color:rgba(255,255,255,.72);font-size:14px;padding:6px 0}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22)}
.footer-brand b{font-size:17px;font-weight:800;color:#fff}
.footer-sub{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62)}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{height:44px;flex:1;border-radius:10px;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;transition:all .2s ease-out}
.footer-form input::placeholder{color:rgba(255,255,255,.55)}
.footer-form input:focus{outline:none;border-color:#8FB6EC;box-shadow:0 0 0 3px rgba(143,182,236,.28)}
.footer-form .btn{padding:0 20px;height:44px}

@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero-inner{grid-template-columns:1fr;min-height:auto;padding:48px 0 64px}
  .hero h1{font-size:34px}
  .grid-4,.grid-3{grid-template-columns:repeat(3,1fr)}
  .collage{grid-template-columns:1fr 1fr}
  .collage .span-2{grid-row:span 1;grid-column:span 2}
  .collage .big{min-height:300px}
  .cms-layout{grid-template-columns:1fr;gap:28px}
  .cms-aside{position:static}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-main{display:none}
  .burger{display:flex}
  .mega{display:none}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero h1{font-size:28px}
  .sec-title{font-size:23px}
  .hero-stats{gap:22px}
  .hero-stat b{font-size:22px}
  .grid-4,.grid-3,.cms-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .collage{grid-template-columns:1fr;gap:16px}
  .collage .span-2{grid-column:span 1}
  .cta-inner h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
}

/* roulang page: article */
:root{
  --brand:#1A56A8;
  --brand-deep:#123A72;
  --brand-soft:#EAF2FE;
  --accent:#F0A22E;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ink:#0E1F38;
  --text:#47566E;
  --muted:#7A889C;
  --line:#E3EAF4;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,42,84,.04), 0 10px 24px -14px rgba(16,42,84,.20);
  --shadow-hover:0 2px 4px rgba(16,42,84,.05), 0 22px 40px -20px rgba(16,42,84,.28);
  --font-cn:-apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*{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;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out, transform .2s ease-out;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.3;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,86,168,.28);border-radius:8px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:80px 0;}
.section-alt{background:#fff;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease-out, background-color .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(16,42,84,.32);background:rgba(255,255,255,.97);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17px;color:var(--ink);font-weight:800;letter-spacing:.01em;}
.brand-text i{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:14px;font-weight:600;cursor:pointer;
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.mega-trigger svg{transition:transform .2s ease-out;}
.mega-wrap.open .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:640px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-hover);padding:22px;
  display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease-out, transform .16s ease-out, visibility .16s;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{font-size:13px;color:var(--muted);letter-spacing:.06em;margin-bottom:10px;font-weight:600;}
.mega-col a{display:block;font-size:14px;color:var(--text);padding:7px 0;border-radius:6px;}
.mega-col a:hover{color:var(--brand);}
.mega-col a span{display:block;font-size:12px;color:var(--muted);}
.mega-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg);}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card-body{padding:12px 14px 14px;}
.mega-card-body p{margin:0 0 10px;font-size:13px;line-height:1.6;color:var(--text);}
.mega-card-body a{display:inline-flex;font-size:13px;font-weight:700;color:var(--brand);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0 20px;
}
.mobile-drawer a{display:block;padding:12px 0;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);}
.mobile-drawer a:last-child{border-bottom:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:all .2s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(26,86,168,.75);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
.btn-primary:active{transform:scale(.98);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);}
.btn-invert{background:#fff;color:var(--brand-deep);}
.btn-invert:hover{background:rgba(255,255,255,.86);transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.45);}
.btn-light:hover{background:rgba(255,255,255,.18);}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 0;font-size:13px;color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-style:normal;color:#BBC7D8;}
.crumb b{color:var(--ink);font-weight:600;}

/* ============ 文章头图区 ============ */
.article-hero{
  position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1000px 320px at 12% 0%, rgba(26,86,168,.10), transparent 70%),
    linear-gradient(180deg,#FFFFFF 0%,#F7FAFF 100%);
}
.article-hero-inner{position:relative;padding:56px 0 44px;max-width:860px;}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag-accent{background:rgba(240,162,46,.16);color:#9A6208;}
.article-title{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.article-title mark{background:transparent;color:inherit;box-shadow:inset 0 -12px 0 rgba(240,162,46,.28);}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;
  font-size:14px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C8D4E4;display:inline-block;}
.article-lede{
  margin-top:24px;padding:18px 22px;border-radius:14px;background:var(--bg);
  border:1px solid var(--line);border-left:3px solid var(--brand);
  font-size:15.5px;line-height:1.8;color:var(--text);
}

/* ============ 文章主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;
  padding:64px 0 80px;
}
.article-main{min-width:0;}
.article-body{
  max-width:800px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 48px;box-shadow:var(--shadow-card);
}
.article-body p{margin:0 0 1.1em;font-size:16px;line-height:1.85;color:var(--text);}
.article-body h2{
  position:relative;padding-left:16px;margin:2.2em 0 .8em;font-size:28px;line-height:1.35;font-weight:800;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.36em;width:4px;height:.9em;border-radius:2px;background:var(--brand);
}
.article-body h3{margin:1.8em 0 .6em;font-size:20px;font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;font-size:15.5px;line-height:1.8;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--brand-soft);box-shadow:inset 0 0 0 2px var(--brand);
}
.article-body ol{counter-reset:oli;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:oli;font-size:15.5px;line-height:1.8;}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.18em;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:14px 20px;border-left:3px solid var(--brand);
  background:var(--bg);border-radius:0 12px 12px 0;color:var(--ink);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;box-shadow:var(--shadow-card);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.article-body a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(26,86,168,.28);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--bg);color:var(--ink);font-weight:700;}
.article-body code{background:var(--brand-soft);color:var(--brand-deep);padding:2px 6px;border-radius:6px;font-size:14px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:14px;letter-spacing:.01em;}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.side-list li:last-child{border-bottom:none;}
.side-list span{color:var(--muted);}
.side-list b{color:var(--ink);font-weight:600;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14px;font-weight:600;color:var(--ink);
  border:1px solid var(--line);margin-bottom:10px;
}
.side-links a:last-child{margin-bottom:0;}
.side-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.side-links a em{font-style:normal;color:var(--muted);font-size:12px;font-weight:500;}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#fff;
}
.empty-thumb{
  width:88px;height:88px;border-radius:20px;margin:0 auto 18px;
  background:linear-gradient(135deg,#DCE9FB,#F3F7FE);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:800;font-size:20px;
}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{margin:0 auto 20px;max-width:440px;font-size:15px;color:var(--text);}

/* ============ 相关推荐 ============ */
.rec-section{padding:0 0 80px;}
.rec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.rec-head h2{font-size:28px;font-weight:800;}
.rec-head p{margin:6px 0 0;font-size:14px;color:var(--muted);}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);transition:all .2s ease-out;display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D5E2F5;}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.badge{
  position:absolute;left:12px;top:12px;height:26px;padding:0 10px;border-radius:999px;
  background:var(--accent);color:#3D2708;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;letter-spacing:.02em;
}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.rec-body h3{font-size:17px;line-height:1.45;font-weight:700;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-body p{margin:0 0 14px;font-size:14px;line-height:1.7;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:auto;}
.rec-meta .dot{width:3px;height:3px;border-radius:50%;background:#C8D4E4;}
.rec-more{margin-top:14px;font-size:14px;font-weight:700;color:var(--brand);}
.rec-card:hover .rec-more{color:var(--brand-deep);}

/* ============ 返回入口 ============ */
.return-bar{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 26px;box-shadow:var(--shadow-card);margin-bottom:80px;
}
.return-bar p{margin:0;font-size:15px;color:var(--text);}
.return-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:20px;padding:44px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  margin-bottom:80px;
}
.cta-band h2{color:#fff;font-size:28px;font-weight:800;margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.80);max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-grid > div{border-left:1px solid rgba(255,255,255,.12);padding-left:22px;}
.footer-grid > div:first-child{border-left:none;padding-left:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand b{font-size:17px;font-weight:800;letter-spacing:.01em;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.site-footer p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;margin:0 0 10px;}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;text-decoration:none;}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-form{display:flex;gap:10px;margin-top:14px;}
.footer-form input{
  flex:1;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.55);}
.footer-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.22);background:rgba(255,255,255,.14);}
.footer-sub{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-main,.mega-wrap{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer.open{display:block;}
  .article-title{font-size:32px;}
  .article-body{padding:32px 26px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .header-inner{height:64px;}
  .article-hero-inner{padding:36px 0 30px;}
  .article-title{font-size:28px;}
  .article-layout{padding:40px 0 56px;}
  .article-body h2{font-size:23px;}
  .article-body h3{font-size:18px;}
  .rec-grid{grid-template-columns:minmax(0,1fr);}
  .rec-head{flex-direction:column;align-items:flex-start;}
  .rec-head h2{font-size:23px;}
  .return-bar{flex-direction:column;align-items:flex-start;padding:20px;}
  .return-actions{width:100%;}
  .return-actions .btn{flex:1;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid > div{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.10);padding-top:20px;}
  .footer-grid > div:first-child{border-top:none;padding-top:0;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:#C9D6E8;border-radius:8px;border:2px solid var(--bg);}
::-webkit-scrollbar-track{background:transparent;}

/* roulang page: category1 */
:root{
  --brand:#1A56A8;
  --brand-deep:#123A72;
  --brand-soft:#EAF2FE;
  --accent:#F0A22E;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ink:#0E1F38;
  --text:#47566E;
  --muted:#7A889C;
  --line:#E3EAF4;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,42,84,.04), 0 10px 24px -14px rgba(16,42,84,.20);
  --sh-card-hover:0 2px 6px rgba(16,42,84,.06), 0 22px 40px -20px rgba(16,42,84,.30);
  --t:200ms ease-out;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(26,86,168,.28);
  border-radius:10px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:640px){
  .container{padding:0 20px;}
}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{
  box-shadow:0 8px 24px -18px rgba(16,42,84,.45);
  background:rgba(255,255,255,.97);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:16px;font-weight:700;color:var(--ink);}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.nav-main{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text);
  padding:24px 0;
  transition:color var(--t);
}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:16px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.mega-trigger:hover{background:var(--brand-soft);border-color:#CFE0F7;}
.mega-trigger:active{transform:scale(.98);}
.mega-caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform var(--t);}
.mega-wrap:hover .mega-caret,.mega-wrap.is-open .mega-caret{transform:rotate(-135deg) translateY(-2px);}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 12px);
  width:720px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card-hover);
  padding:22px;
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity 160ms ease-out,transform 160ms ease-out,visibility 160ms;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-wrap.is-open .mega-panel{
  opacity:1;visibility:visible;transform:none;
}
.mega-col h4{
  font-size:13px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:.06em;
  margin-bottom:12px;
}
.mega-link{
  display:block;
  font-size:14px;
  color:var(--text);
  padding:7px 0;
  transition:color var(--t),transform var(--t);
}
.mega-link:hover{color:var(--brand);transform:translateX(3px);}
.mega-news{
  display:block;
  padding:8px 0;
  border-bottom:1px dashed var(--line);
}
.mega-news:last-child{border-bottom:0;}
.mega-news b{display:block;font-size:14px;color:var(--ink);font-weight:600;line-height:1.5;}
.mega-news span{font-size:12px;color:var(--muted);}
.mega-card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--brand-soft);
  display:flex;
  flex-direction:column;
}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card-body{padding:12px 14px 14px;}
.mega-card-body p{font-size:13px;color:var(--text);line-height:1.6;margin-bottom:10px;}
.mega-card-btn{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:#fff;
  background:var(--brand);
  border-radius:var(--r-btn);
  padding:8px 14px;
  transition:background var(--t),transform var(--t);
}
.mega-card-btn:hover{background:var(--brand-deep);transform:translateY(-1px);}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t),opacity var(--t);}
.menu-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-active span:nth-child(2){opacity:0;}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  position:fixed;
  top:72px;left:0;right:0;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:14px 20px 22px;
  box-shadow:0 18px 30px -24px rgba(16,42,84,.5);
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
  max-height:calc(100vh - 72px);
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none;}
.drawer-link{
  display:block;
  padding:13px 0;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  font-weight:600;
}
.drawer-link.active{color:var(--brand);}
.drawer-group{margin-top:18px;}
.drawer-group h4{font-size:13px;color:var(--muted);font-weight:700;letter-spacing:.06em;margin-bottom:8px;}
@media (max-width:1023px){
  .nav-main,.mega-wrap{display:none;}
  .menu-toggle{display:flex;}
  .mobile-drawer{display:block;}
}
/* ---------- breadcrumb & hero ---------- */
.cat-hero{
  position:relative;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:34px 0 42px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(26,86,168,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(26,86,168,.07) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 82%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.breadcrumb a{transition:color var(--t);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
  max-width:880px;
}
.cat-lead{
  font-size:16px;
  color:var(--text);
  max-width:760px;
  margin-top:16px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.pill-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:7px 15px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.02em;
}
.pill-badge i{
  display:block;width:7px;height:7px;border-radius:50%;
  background:var(--accent);
}
.filter-row{
  display:flex;
  gap:10px;
  margin-top:30px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.filter-row::-webkit-scrollbar{height:6px;}
.filter-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.chip{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  font-size:14px;
  font-weight:500;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.chip:hover{background:var(--brand-soft);border-color:#CFE0F7;color:var(--brand);}
.chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  font-weight:600;
}
.chip:active{transform:scale(.98);}
@media (max-width:640px){
  .cat-hero{padding:26px 0 32px;}
  .cat-hero h1{font-size:29px;}
  .cat-lead{font-size:15px;}
}
/* ---------- sections ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:4px;
  border-radius:4px;
  background:var(--brand);
}
.section-head p{font-size:15px;color:var(--muted);max-width:620px;}
@media (max-width:640px){
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
}
/* ---------- card grid ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
@media (max-width:1023px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
}
@media (max-width:639px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
}
.grid-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.grid-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-card-hover);
  border-color:#D6E4F7;
}
.grid-card.is-hidden-card{display:none;}
.grid-card.is-filtered{display:none;}
.card-media{
  position:relative;
  display:block;
  aspect-ratio:3/4;
  overflow:hidden;
  border-radius:var(--r-img) var(--r-img) 0 0;
  background:var(--brand-soft);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 300ms ease-out;
}
.grid-card:hover .card-media img{transform:scale(1.04);}
.badge{
  position:absolute;
  left:10px;top:10px;
  background:var(--accent);
  color:#3B2A05;
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  padding:4px 11px;
  border-radius:var(--r-pill);
}
.badge.badge-quiet{background:rgba(255,255,255,.92);color:var(--brand);}
.card-score{
  position:absolute;
  right:10px;bottom:10px;
  background:rgba(14,31,56,.74);
  color:#fff;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  padding:3px 9px;
  border-radius:var(--r-pill);
}
.card-body{padding:14px 15px 16px;}
.card-title{
  font-size:16px;
  font-weight:700;
  line-height:1.45;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:46px;
}
.card-title a{transition:color var(--t);}
.card-title a:hover{color:var(--brand);}
.card-desc{
  font-size:14px;
  line-height:1.65;
  color:var(--text);
  margin-top:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:46px;
}
.card-meta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
  margin-top:12px;
}
.card-meta i{
  display:block;width:3px;height:3px;border-radius:50%;background:var(--muted);
}
.card-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  transition:gap var(--t),color var(--t);
}
.card-more:hover{gap:10px;color:var(--brand-deep);}
/* ---------- load more ---------- */
.load-wrap{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  margin-top:40px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
.btn-primary:active{transform:scale(.98);}
.btn-secondary{
  background:#fff;
  color:var(--brand);
  border:1px solid var(--brand);
}
.btn-secondary:hover{background:var(--brand-soft);transform:translateY(-2px);}
.btn-secondary:active{transform:scale(.98);}
.load-hint{font-size:13px;color:var(--muted);}
/* ---------- rhythm layout ---------- */
.rhythm-layout{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:24px;
  align-items:stretch;
}
@media (max-width:1023px){
  .rhythm-layout{grid-template-columns:1fr 1fr;}
}
@media (max-width:639px){
  .rhythm-layout{grid-template-columns:1fr;}
}
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-card);
  display:flex;
  flex-direction:column;
}
.panel h3{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.panel .panel-note{
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.date-list li{
  display:flex;
  align-items:center;
  gap:14px;
  padding:13px 0;
  border-bottom:1px dashed var(--line);
}
.date-list li:last-child{border-bottom:0;padding-bottom:0;}
.date-day{
  flex:0 0 52px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  text-align:center;
  padding:5px 0;
}
.date-list b{display:block;font-size:15px;color:var(--ink);font-weight:600;}
.date-list em{font-style:normal;font-size:13px;color:var(--muted);}
.date-time{margin-left:auto;font-size:13px;color:var(--muted);letter-spacing:.02em;}
.rank-list li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
}
.rank-list li:last-child{border-bottom:0;padding-bottom:0;}
.rank-num{
  flex:0 0 24px;height:24px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.rank-list b{font-size:15px;color:var(--ink);font-weight:600;}
.rank-list span{margin-left:auto;font-size:13px;color:var(--accent);font-weight:700;letter-spacing:.02em;}
.panel-photo{padding:0;overflow:hidden;position:relative;}
.panel-photo img{width:100%;height:100%;min-height:220px;object-fit:cover;}
.panel-photo-body{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:20px;
  color:#fff;
  background:linear-gradient(180deg,rgba(18,58,114,0) 0%,rgba(18,58,114,.88) 72%);
}
.panel-photo-body b{display:block;font-size:18px;font-weight:700;margin-bottom:6px;}
.panel-photo-body p{font-size:13px;color:rgba(255,255,255,.86);line-height:1.65;}
/* ---------- related ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
@media (max-width:767px){
  .related-grid{grid-template-columns:1fr;gap:16px;}
}
.related-card{
  display:flex;
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:#D6E4F7;}
.related-card img{
  width:132px;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  flex-shrink:0;
}
.related-card h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.related-card p{font-size:14px;line-height:1.7;color:var(--text);}
.related-card .card-more{margin-top:12px;}
@media (max-width:520px){
  .related-card{flex-direction:column;}
  .related-card img{width:100%;aspect-ratio:16/9;}
}
/* ---------- faq ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:0 22px;
  margin-bottom:12px;
  box-shadow:var(--sh-card);
  transition:border-color var(--t);
}
.faq-item[open]{border-color:#CFE0F7;}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;
  width:22px;height:22px;
  flex-shrink:0;
  border-radius:50%;
  background:var(--brand-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--brand);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-answer{
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  padding:0 0 22px;
  max-width:760px;
}
/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:var(--r-card);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  color:#fff;
  box-shadow:0 24px 48px -30px rgba(16,42,84,.6);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.82);max-width:620px;}
.btn-invert{
  background:#fff;
  color:var(--brand-deep);
  flex-shrink:0;
}
.btn-invert:hover{background:var(--brand-soft);transform:translateY(-2px);}
.btn-invert:active{transform:scale(.98);}
@media (max-width:640px){
  .cta-band{padding:28px;border-radius:var(--r-card);}
  .cta-band h2{font-size:22px;}
  .cta-band .btn{width:100%;}
}
/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-deep);
  color:#fff;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1.2fr;
  gap:32px;
  padding:64px 0 40px;
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand b{font-size:16px;font-weight:700;color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);}
.site-footer h4{
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  color:rgba(255,255,255,.94);
  margin-bottom:14px;
}
.site-footer p{
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
  margin-bottom:10px;
}
.footer-link{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.72);
  padding:6px 0;
  transition:color var(--t),text-underline-offset var(--t);
}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-form{
  display:flex;
  gap:8px;
  margin-top:14px;
}
.footer-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:14px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.footer-form input::placeholder{color:rgba(255,255,255,.5);}
.footer-form input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(240,162,46,.28);
  background:rgba(255,255,255,.14);
}
.footer-form .btn{height:44px;padding:0 20px;font-size:14px;}
@media (max-width:520px){
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
}
.footer-sub{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.visually-hidden{
  position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;
}

/* roulang page: category2 */
:root{
  --brand:#1A56A8;
  --brand-deep:#123A72;
  --brand-soft:#EAF2FE;
  --accent:#F0A22E;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --ink:#0E1F38;
  --text:#47566E;
  --muted:#7A889C;
  --line:#E3EAF4;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(16,42,84,.04),0 10px 24px -14px rgba(16,42,84,.20);
  --shadow-hover:0 1px 2px rgba(16,42,84,.05),0 20px 42px -20px rgba(16,42,84,.32);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--brand-soft);color:var(--brand-deep)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(26,86,168,.28);border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--surface)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:999px;
}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px}
.sec-title{font-size:30px;font-weight:800;position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand)}
.sec-desc{max-width:640px;font-size:15px;color:var(--text);margin-top:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(26,86,168,.7)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7D9F2}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px)}
.btn-invert{background:#fff;color:var(--brand-deep);border-color:rgba(255,255,255,.9)}
.btn-invert:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-block{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.93);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 26px -18px rgba(16,42,84,.45)}
.header-inner{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:linear-gradient(158deg,var(--brand) 8%,var(--brand-deep) 92%);
  color:#fff;font-size:15px;font-weight:800;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:17px;font-weight:800;color:var(--ink)}
.brand-text i{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.05em}

.nav-main{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--text);transition:color var(--ease),background var(--ease)}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}

.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:14px;font-weight:600;transition:all var(--ease);
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.mega-trigger svg{transition:transform var(--ease)}
.mega-wrap.open .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:min(760px,86vw);
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 30px 70px -34px rgba(16,42,84,.48);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:700;margin-bottom:12px;text-transform:uppercase}
.mega-link{display:block;padding:8px 10px;border-radius:10px;font-size:14px;color:var(--text);transition:all var(--ease)}
.mega-link:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.mega-news{display:block;padding:8px 10px;border-radius:10px;transition:background var(--ease)}
.mega-news:hover{background:var(--brand-soft)}
.mega-news b{display:block;font-size:14px;color:var(--ink);font-weight:600}
.mega-news span{font-size:12px;color:var(--muted)}
.mega-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card-body{padding:14px}
.mega-card-body p{font-size:13px;color:var(--text);margin-bottom:12px}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;transition:all var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:all var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 0 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .container{display:flex;flex-direction:column;gap:4px}
.mobile-drawer .nav-link{padding:12px 14px}
.mobile-drawer .nav-link.active::after{display:none}
.mobile-drawer .nav-link.active{background:var(--brand-soft)}
.drawer-sub{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.drawer-sub h4{font-size:13px;color:var(--muted);letter-spacing:.06em;margin-bottom:8px}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:var(--muted);transition:color var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{opacity:.6}
.crumbs .now{color:var(--brand);font-weight:600}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;background:var(--surface);border-bottom:1px solid var(--line);overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(227,234,244,.9) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(227,234,244,.9) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(14,31,56,.75),transparent 88%);
  mask-image:linear-gradient(to bottom,rgba(14,31,56,.75),transparent 88%);
  opacity:.75;pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:1;padding:34px 0 44px}
.hero-h1{font-size:44px;font-weight:800;letter-spacing:-.01em;margin:18px 0 14px;max-width:20em}
.hero-h1 em{font-style:normal;color:var(--brand);background:linear-gradient(to top,rgba(240,162,46,.30) 34%,transparent 34%)}
.hero-lead{font-size:16px;color:var(--text);max-width:760px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.fact{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;font-size:13px;color:var(--text);font-weight:500;
}
.fact b{color:var(--brand);font-size:15px;font-weight:700;letter-spacing:.02em}
.chip-row{display:flex;gap:10px;overflow-x:auto;padding:24px 0 4px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13.5px;color:var(--text);white-space:nowrap;
  transition:all var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 主体两栏 ---------- */
.layout{display:grid;grid-template-columns:272px minmax(0,1fr);gap:32px;padding:56px 0 84px;align-items:start}
.filter-col{position:sticky;top:98px;display:flex;flex-direction:column;gap:16px}
.filter-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow)}
.filter-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.filter-head h2{font-size:16px;font-weight:800}
.filter-reset{font-size:13px;color:var(--brand);border:0;background:none;padding:4px}
.filter-reset:hover{text-decoration:underline}
.filter-group{padding-top:16px;border-top:1px solid var(--line)}
.filter-group:first-of-type{padding-top:0;border-top:0}
.filter-group + .filter-group{margin-top:16px}
.filter-group h3{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:12px}
.opt-list{display:flex;flex-wrap:wrap;gap:8px}
.opt{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--text);cursor:pointer;
  transition:all var(--ease);
}
.opt input{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
.opt:hover{border-color:#B9CFEC;color:var(--brand);background:#F7FAFF}
.opt:has(input:checked){background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.filter-note{font-size:12.5px;color:var(--muted);line-height:1.7}
.filter-cta{display:flex;flex-direction:column;gap:10px}

/* ---------- 长卡列表 ---------- */
.list-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px}
.list-head h2{font-size:26px;font-weight:800}
.list-head p{font-size:14px;color:var(--muted);margin-top:6px}
.list-stack{display:flex;flex-direction:column;gap:18px}
.long-card{
  display:grid;grid-template-columns:248px minmax(0,1fr);gap:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.long-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFDEF3}
.long-thumb{position:relative;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft)}
.long-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease-out}
.long-card:hover .long-thumb img{transform:scale(1.04)}
.badge{
  position:absolute;left:10px;top:10px;z-index:1;
  background:var(--accent);color:#3A2400;font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:999px;letter-spacing:.02em;
}
.long-body{display:flex;flex-direction:column;justify-content:space-between;gap:14px;min-width:0}
.long-top{display:flex;flex-direction:column;gap:10px;min-width:0}
.long-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-plain{background:#F1F5FC;color:var(--muted)}
.long-title{font-size:19px;font-weight:700;line-height:1.45}
.long-card:hover .long-title{color:var(--brand)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.long-sum{font-size:14.5px;color:var(--text)}
.long-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px dashed var(--line)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.dot{width:4px;height:4px;border-radius:50%;background:#C6D4E8;flex:0 0 4px}
.long-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);transition:gap var(--ease),color var(--ease)}
.long-link:hover{gap:10px;color:var(--brand-deep)}

.load-wrap{display:flex;flex-direction:column;align-items:center;gap:18px;padding-top:34px}
.pager{display:flex;align-items:center;gap:8px}
.pager a{
  min-width:40px;height:40px;display:grid;place-items:center;
  border-radius:10px;border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--text);transition:all var(--ease);
}
.pager a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.pager a.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.pager a.is-disabled{opacity:.5;pointer-events:none}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{font-size:18px}
.scene-body p{font-size:14.5px;color:var(--text)}
.scene-body .long-link{margin-top:auto;padding-top:8px}

/* ---------- 流程 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 20px;position:relative;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:15px;
  letter-spacing:.02em;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text)}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:44px 0}
.stat{display:flex;flex-direction:column;gap:4px}
.stat b{font-size:32px;font-weight:800;color:var(--brand);letter-spacing:.02em;line-height:1.2}
.stat span{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item + .faq-item{margin-top:12px}
.faq-item.open{border-color:#C6D8F2;box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-icon{
  position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  transition:transform .25s ease-out,background var(--ease),color var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:currentColor;border-radius:2px;
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:opacity var(--ease)}
.faq-item.open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.75;color:var(--text)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(112deg,var(--brand) 0%,var(--brand-deep) 78%)}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.16;mix-blend-mode:luminosity;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:56px 0}
.cta-copy{max-width:640px;color:#fff}
.cta-copy span{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:#BFD6F5;margin-bottom:10px}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.82);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.rel-card img{width:120px;flex:0 0 120px;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-img)}
.rel-body h3{font-size:17px;margin-bottom:6px}
.rel-body p{font-size:14px;color:var(--text)}
.rel-body .long-link{margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand b{font-size:17px;font-weight:800}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.site-footer p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-link{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color var(--ease),text-underline-offset var(--ease)}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.55)}
.footer-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.18)}
.footer-sub{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .hero-h1{font-size:38px}
  .mega-panel{width:min(680px,90vw);grid-template-columns:1fr 1fr;gap:18px}
  .mega-card{grid-column:span 2}
}
@media (max-width:1023px){
  .container{padding:0 26px}
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .mega-wrap{display:none}
  .layout{grid-template-columns:1fr;padding:40px 0 64px}
  .filter-col{position:static;flex-direction:row;overflow-x:auto;gap:12px;padding-bottom:6px;scrollbar-width:none}
  .filter-col::-webkit-scrollbar{display:none}
  .filter-card{min-width:270px;flex:0 0 auto}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:36px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .section{padding:64px 0}
  .hero-h1{font-size:34px}
}
@media (max-width:767px){
  .long-card{grid-template-columns:1fr;gap:14px}
  .long-thumb{aspect-ratio:16/9}
  .rel-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:24px}
  .sec-title{font-size:24px}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .header-inner{height:66px;gap:14px}
  .brand-text i{display:none}
  .hero-h1{font-size:28px}
  .hero-lead{font-size:15px}
  .cat-hero-inner{padding:26px 0 34px}
  .scene-grid,.step-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr;padding-bottom:26px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .cta-inner{padding:44px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:140px}
  .long-card{padding:14px}
  .section{padding:48px 0}
  .rel-card{flex-direction:column;align-items:flex-start}
  .rel-card img{width:100%;flex:none}
}