/* roulang page: index */
:root{
  --brand:#2F6BE0; --brand-deep:#1E4CA8; --brand-soft:#EAF1FF;
  --accent:#F2B23E; --accent-soft:#FFF4DC; --accent-ink:#6B4A0E;
  --ink:#16233A; --ink-2:#445369; --ink-3:#7C8AA0;
  --bg:#F7F9FD; --surface:#FFFFFF; --line:#E3E9F4;
  --ok:#2FA36B; --warn:#E2683C;
  --r-sm:10px; --r-md:16px; --r-lg:20px; --r-img:12px;
  --sh-1:0 1px 2px rgba(22,35,58,.05), 0 8px 24px -12px rgba(22,35,58,.16);
  --sh-2:0 12px 32px -12px rgba(47,107,224,.28);
  --t:.22s ease;
  --sec:88px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink-2);
  font-size:16px;line-height:28px;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-soft);border-bottom:1px solid rgba(47,107,224,.10)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:40px;font-size:13px;color:var(--ink-2);gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-mark{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-right a{color:var(--ink-2);font-size:13px}
.topbar-right a:hover{color:var(--brand)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:0 8px 24px -16px rgba(22,35,58,.35)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:flex-start;gap:6px;text-decoration:none;flex:none}
.logo-main{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.5px;line-height:22px}
.logo-badge{margin-top:-4px;font-size:11px;line-height:16px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);border:1px solid var(--accent);border-radius:999px;padding:0 7px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:var(--ink-2);padding:25px 0;font-weight:500}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:16px;width:0;height:2px;background:var(--accent);transform:translateX(-50%);transition:width var(--t);border-radius:2px}
.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-cta{margin-left:8px;flex:none}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.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}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(22,35,58,.42);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:290px;background:var(--surface);z-index:80;transform:translateX(100%);transition:transform var(--t);display:flex;flex-direction:column;padding:20px;box-shadow:-12px 0 40px -20px rgba(22,35,58,.4)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer;color:var(--ink);font-size:18px;line-height:1}
.drawer nav{display:flex;flex-direction:column;margin-top:12px}
.drawer nav a{padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink-2);font-size:15px}
.drawer nav a.active{color:var(--brand);font-weight:600}
.drawer .btn-primary{margin-top:auto;width:100%}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:500;
  cursor:pointer;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  border:1px solid transparent;white-space:nowrap;line-height:1;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:var(--accent-soft);color:var(--accent-ink);border-color:var(--accent)}
.btn-accent:hover{background:#FFE9BC;color:var(--accent-ink);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0)}
.btn-primary:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible,.burger:focus-visible,.drawer-close:focus-visible,.faq-q:focus-visible,input:focus-visible{
  outline:3px solid rgba(47,107,224,.25);outline-offset:2px
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--brand);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;transition:color var(--t),text-decoration-color var(--t)}
.link-more:hover{color:var(--brand-deep);text-decoration-color:var(--accent)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap}
.badge-brand{background:var(--brand);color:#fff}
.badge-soft{background:var(--brand-soft);color:var(--brand)}
.badge-accent{background:var(--accent-soft);color:var(--accent-ink)}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:28px;line-height:38px;font-weight:700}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--ink-3);max-width:660px}
.section-head .head-right{flex:none;padding-bottom:6px}

/* ---------- Hero ---------- */
.hero{padding:56px 0 var(--sec);background:
  radial-gradient(900px 380px at 8% -10%, rgba(47,107,224,.10), transparent 70%),
  radial-gradient(700px 320px at 92% 0%, rgba(242,178,62,.14), transparent 70%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:13px;color:var(--ink-2);box-shadow:var(--sh-1)}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}
.hero h1{font-size:40px;line-height:48px;font-weight:700;margin:20px 0 0;letter-spacing:-.3px}
.hero h1 em{font-style:normal;position:relative;color:var(--brand-deep);white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;background:var(--accent-soft);z-index:-1;border-radius:4px}
.hero-sub{margin:18px 0 0;font-size:17px;line-height:30px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-badges .badge{height:28px;padding:0 12px;font-size:13px;background:var(--surface);border:1px solid var(--line);color:var(--ink-2)}
.hero-media{position:relative;aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media-veil{position:absolute;inset:0;background:rgba(47,107,224,.12)}
.hero-media-tag{position:absolute;top:18px;left:18px;background:rgba(20,43,79,.72);color:#fff;font-size:13px;padding:6px 14px;border-radius:999px;letter-spacing:.4px}
.hero-float{position:absolute;right:16px;bottom:16px;display:flex;gap:12px;align-items:center;background:#fff;border-radius:var(--r-md);padding:10px 14px 10px 10px;box-shadow:var(--sh-2);max-width:300px}
.hero-float img{width:60px;height:60px;border-radius:10px;object-fit:cover;flex:none}
.hero-float h3{font-size:14px;line-height:20px;font-weight:600;margin-top:6px;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 主题封面带 ---------- */
.coverband{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px;align-items:stretch}
.covercard{position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);text-decoration:none}
.covercard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDF9}
.covercard-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.covercard-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.covercard:hover .covercard-img img{transform:scale(1.03)}
.covercard-body{padding:20px 22px 22px}
.covercard-body h3{font-size:20px;line-height:28px;font-weight:600;margin:10px 0 0;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.covercard-body p{margin:8px 0 0;font-size:14px;line-height:22px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.covercard-go{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:500;color:var(--brand)}
.covercard.big .covercard-img{aspect-ratio:16/10}
.covercard.big .covercard-body h3{font-size:24px;line-height:32px}

/* ---------- 合集目录 ---------- */
.catalog{display:grid;grid-template-columns:260px 1fr;gap:48px}
.catalog-aside{position:sticky;top:104px;align-self:start}
.catalog-aside h3{font-size:13px;letter-spacing:1.6px;color:var(--ink-3);font-weight:600;margin-bottom:16px}
.catalog-anchors{display:flex;flex-direction:column;gap:4px}
.catalog-anchors a{position:relative;display:block;padding:11px 12px 11px 16px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-2);transition:background var(--t),color var(--t)}
.catalog-anchors a::before{content:"";position:absolute;left:4px;top:12px;bottom:12px;width:2px;border-radius:2px;background:transparent;transition:background var(--t)}
.catalog-anchors a:hover{background:var(--brand-soft);color:var(--brand)}
.catalog-anchors a.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.catalog-anchors a.active::before{background:var(--accent)}
.catalog-aside .aside-note{margin-top:20px;padding:16px;border-radius:var(--r-md);background:var(--accent-soft);border:1px solid #F6E2B4;font-size:13px;line-height:21px;color:var(--accent-ink)}
.catalog-list{border-top:1px solid var(--line)}
.list-row{display:grid;grid-template-columns:48px 1fr 44px;gap:16px;align-items:start;padding:20px 16px;border-bottom:1px solid var(--line);border-radius:var(--r-img);transition:background var(--t),transform var(--t);text-decoration:none;color:inherit}
.list-row:last-child{border-bottom:0}
.list-row:hover{background:rgba(234,241,255,.65);transform:translateX(2px)}
.list-row:focus-visible{outline:3px solid rgba(47,107,224,.25);outline-offset:-2px}
.list-num{font-size:22px;line-height:30px;font-weight:700;color:var(--brand-soft);font-variant-numeric:tabular-nums;letter-spacing:.5px;padding-top:2px}
.list-row:hover .list-num{color:#C8D9F8}
.list-body h4{font-size:17px;line-height:26px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-body p{margin:6px 0 0;font-size:14px;line-height:22px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.list-meta{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:12px;color:var(--ink-3)}
.list-arrow{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);color:var(--ink-3);transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);font-size:15px}
.list-row:hover .list-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(2px)}

/* ---------- 卡片 ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:24px;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDF9}
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pick-card{display:flex;flex-direction:column;padding:0;overflow:hidden;text-decoration:none;color:inherit}
.pick-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.pick-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.pick-card:hover .thumb img{transform:scale(1.04)}
.pick-card .thumb .badge{position:absolute;left:14px;top:14px}
.pick-card .pick-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1}
.pick-card h3{font-size:18px;line-height:26px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-card p{margin:10px 0 0;font-size:14px;line-height:22px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-3)}
.pick-foot .go{color:var(--brand);font-weight:500;display:inline-flex;align-items:center;gap:4px}

/* ---------- 最新信息（CMS） ---------- */
.latest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:22px;text-decoration:none;color:inherit;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDF9}
.news-top{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);margin-bottom:12px}
.news-card h3{font-size:17px;line-height:26px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t)}
.news-card:hover h3{color:var(--brand)}
.news-card p{margin:10px 0 0;font-size:14px;line-height:22px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:16px;font-size:13px;color:var(--brand);font-weight:500;display:inline-flex;align-items:center;gap:5px}
.empty-state{grid-column:1/-1;background:var(--brand-soft);border:1px dashed #BFD3F7;border-radius:var(--r-md);padding:48px 24px;text-align:center}
.empty-state p{margin:0 0 18px;color:var(--ink-2);font-size:15px}

/* ---------- 相关推荐 横向 ---------- */
.rec-scroller{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rec-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);text-decoration:none;color:inherit;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDF9}
.rec-card .thumb{aspect-ratio:1/1;overflow:hidden;background:var(--brand-soft)}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.rec-card:hover .thumb img{transform:scale(1.04)}
.rec-card .rec-body{padding:16px}
.rec-card h3{font-size:15px;line-height:23px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card .rec-meta{margin-top:10px;font-size:12px;color:var(--ink-3);display:flex;align-items:center;gap:8px}

/* ---------- CTA 收藏分享 ---------- */
.cta-block{background:var(--brand-soft);border:1px solid #DAE6FC;border-radius:var(--r-lg);padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-block h2{font-size:26px;line-height:36px}
.cta-block p{margin:10px 0 0;font-size:15px;line-height:26px;color:var(--ink-2);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;transition:border-color var(--t)}
.faq-item:hover{border-color:#CFDDF9}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:26px}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform var(--t)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:760px}

/* ---------- 订阅条 ---------- */
.subscribe{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.subscribe h2{font-size:22px;line-height:32px}
.subscribe p{margin:8px 0 0;font-size:14px;color:var(--ink-3)}
.sub-form{display:flex;gap:12px;flex:none}
.sub-form label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.sub-form input{height:44px;width:260px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 14px;font-size:15px;color:var(--ink);background:var(--surface);transition:border-color var(--t),box-shadow var(--t);font-family:inherit}
.sub-form input::placeholder{color:var(--ink-3)}
.sub-form input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.15)}

/* ---------- 页脚 ---------- */
.site-footer{background:#142B4F;color:#D6E0F0;margin-top:var(--sec);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-main{color:#fff;font-size:19px}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:24px;color:#B9C6DC;max-width:300px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{font-size:12px;color:#CDD9EA;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:3px 10px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a,.footer-links span{font-size:14px;color:#B9C6DC;line-height:22px}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#B9C6DC}
.footer-bottom .fb-right{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:64px}
  .hero h1{font-size:34px;line-height:42px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:640px}
  .coverband{grid-template-columns:1fr 1fr}
  .covercard.big{grid-column:1/-1}
  .catalog{grid-template-columns:1fr;gap:28px}
  .catalog-aside{position:static}
  .catalog-anchors{flex-direction:row;flex-wrap:wrap;gap:8px}
  .catalog-anchors a{padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:14px}
  .catalog-anchors a::before{display:none}
  .catalog-anchors a.active{background:var(--brand-soft);border-color:#CFDDF9}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .rec-scroller{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{flex-direction:column;align-items:flex-start;padding:32px}
  .subscribe{flex-direction:column;align-items:flex-start;padding:28px}
  .sub-form{width:100%}
  .sub-form input{flex:1;width:auto;min-width:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  .topbar-right a:first-child{display:none}
  .hero{padding-top:36px}
  .hero h1{font-size:28px;line-height:36px}
  .hero-sub{font-size:16px;line-height:27px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:22px;line-height:30px}
  .coverband{grid-template-columns:1fr}
  .pick-grid{grid-template-columns:1fr}
  .latest-grid{grid-template-columns:1fr}
  .rec-scroller{display:flex;overflow-x:auto;gap:14px;scroll-snap-type:x mandatory;padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .rec-card{flex:0 0 68%;scroll-snap-align:start}
  .list-row{grid-template-columns:32px 1fr;gap:12px;padding:16px 8px}
  .list-arrow{display:none}
  .list-num{font-size:17px;line-height:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-primary,.cta-actions .btn-ghost,.cta-actions .btn-accent{flex:1 1 auto}
  .hero-float{position:static;margin:12px;max-width:none}
  .hero-media-tag{top:12px;left:12px}
  .subscribe h2{font-size:19px;line-height:28px}
  .sub-form{flex-direction:column}
  .sub-form input{width:100%}
  .sub-form .btn-primary{width:100%}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%}
  .rec-card{flex:0 0 82%}
  .card{padding:20px}
  .news-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .covercard:hover,.card:hover,.pick-card:hover,.news-card:hover,.rec-card:hover,.list-row:hover,.btn-primary:hover,.btn-ghost:hover,.btn-accent:hover{transform:none !important}
}

/* roulang page: category1 */
:root{
    --brand:#2F6BE0;
    --brand-deep:#1E4CA8;
    --brand-soft:#EAF1FF;
    --accent:#F2B23E;
    --accent-soft:#FFF4DC;
    --accent-ink:#6B4A0E;
    --ink:#16233A;
    --ink-2:#445369;
    --ink-3:#7C8AA0;
    --bg:#F7F9FD;
    --surface:#FFFFFF;
    --line:#E3E9F4;
    --ok:#2FA36B;
    --warn:#E2683C;
    --r-card:16px;
    --r-big:20px;
    --r-btn:10px;
    --r-img:12px;
    --shadow:0 1px 2px rgba(22,35,58,.05), 0 8px 24px -12px rgba(22,35,58,.16);
    --shadow-hover:0 12px 32px -12px rgba(47,107,224,.28);
    --ease:.22s ease;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  html body{
    margin:0;
    background:var(--bg);
    color:var(--ink-2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  time,.num{font-variant-numeric:tabular-nums}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  a:focus-visible,button:focus-visible,input:focus-visible{
    outline:3px solid rgba(47,107,224,.25);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ---------- 按钮 ---------- */
  .btn-primary,.btn-ghost,.btn-accent{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:500;line-height:1;border:1px solid transparent;
    white-space:nowrap;
    transition:transform var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),color var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(47,107,224,.62)}
  .btn-primary:active{transform:none;box-shadow:none}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
  .btn-ghost:active{transform:none}
  .btn-accent{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink)}
  .btn-accent:hover{background:#FFE9BC}
  .btn-accent:active{transform:none}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand);
    text-underline-offset:4px;
  }
  .link-more:hover{text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--accent)}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
  }
  .badge-solid{background:var(--brand);color:#fff}
  .badge-soft{background:var(--brand-soft);color:var(--brand)}
  .badge-time{background:var(--accent-soft);color:var(--accent-ink)}

  /* ---------- 顶部信息条 ---------- */
  .topbar{background:var(--brand-soft);border-bottom:1px solid #DCE7FB;font-size:13px;color:var(--ink-2)}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
  .topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
  .topbar-brand{font-weight:700;color:var(--brand-deep);letter-spacing:.02em;white-space:nowrap}
  .topbar-note{color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .topbar-right{display:flex;align-items:center;gap:18px}
  .topbar-right a{transition:color var(--ease)}
  .topbar-right a:hover{color:var(--brand);text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--accent);text-underline-offset:4px}

  /* ---------- 主导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
  .site-header.is-stuck{box-shadow:0 10px 26px -18px rgba(22,35,58,.5)}
  .nav-inner{display:flex;align-items:center;gap:24px;height:72px}
  .logo{display:inline-flex;align-items:flex-start;gap:4px;line-height:1;font-weight:700;font-size:20px}
  .logo-main{color:var(--brand-deep);letter-spacing:.01em}
  .logo-badge{
    display:inline-block;background:var(--accent-soft);color:var(--accent-ink);
    border:1px solid var(--accent);border-radius:999px;font-size:11px;font-weight:700;
    padding:3px 7px;transform:translateY(-3px);letter-spacing:.04em;
  }
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
  .nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ink-2);transition:color var(--ease)}
  .nav-links a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;width:0;margin:0 auto;
    background:var(--accent);border-radius:2px;transition:width var(--ease);
  }
  .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-cta{margin-left:8px}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;width:42px;height:42px;margin-left:auto;
    border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);
    transition:border-color var(--ease),color var(--ease);
  }
  .nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
  .drawer-mask{position:fixed;inset:0;background:rgba(22,35,58,.38);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:80}
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:90;
    background:#fff;padding:26px 22px;display:flex;flex-direction:column;gap:4px;
    transform:translateX(100%);transition:transform .24s ease;
    box-shadow:-20px 0 44px -24px rgba(22,35,58,.5);
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:none}
  .drawer-title{font-size:13px;color:var(--ink-3);margin-bottom:10px}
  .mobile-drawer a.drawer-link{
    display:block;padding:12px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
    border-left:2px solid transparent;transition:background var(--ease),color var(--ease)
  }
  .mobile-drawer a.drawer-link:hover{background:var(--brand-soft);color:var(--brand)}
  .mobile-drawer a.drawer-link.active{color:var(--brand);font-weight:600;border-left-color:var(--accent);background:var(--brand-soft)}
  .mobile-drawer .btn-primary{margin-top:18px;width:100%}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-3)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:#B7C4D8}

  /* ---------- 压缩版 Hero ---------- */
  .cat-hero{padding:36px 0 12px;background:#fff;border-bottom:1px solid var(--line)}
  .cat-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;padding-bottom:36px}
  .cat-hero-copy{min-width:0}
  .cat-hero-copy h1{
    font-size:40px;line-height:1.2;font-weight:700;color:var(--ink);letter-spacing:-.01em;
    margin:16px 0 0;
  }
  .cat-hero-copy .lede{margin-top:16px;font-size:16px;line-height:1.9;color:var(--ink-2);max-width:560px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-media{position:relative;border-radius:var(--r-big);overflow:hidden;background:var(--brand-soft);aspect-ratio:16/10;box-shadow:var(--shadow)}
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-media::after{content:"";position:absolute;inset:0;background:rgba(47,107,224,.12)}
  .hero-media .media-note{
    position:absolute;left:16px;bottom:16px;z-index:2;display:flex;align-items:center;gap:8px;
    background:#fff;border-radius:999px;padding:6px 14px;box-shadow:var(--shadow);
    font-size:12px;font-weight:600;color:var(--brand-deep);
  }
  .media-empty{
    display:flex;align-items:center;justify-content:center;width:100%;height:100%;
    background:var(--brand-soft);color:var(--brand);font-size:13px;
  }

  /* ---------- 数据条 ---------- */
  .stat-strip{border-bottom:1px solid var(--line);background:#fff}
  .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding:22px 0}
  .stat-cell{padding:2px 0 2px 16px;border-left:2px solid var(--brand-soft)}
  .stat-cell:first-child{border-left-color:var(--accent)}
  .stat-num{font-size:24px;font-weight:700;color:var(--ink);line-height:1.2;font-variant-numeric:tabular-nums}
  .stat-num small{font-size:14px;font-weight:600;color:var(--ink-3);margin-left:2px}
  .stat-label{font-size:13px;color:var(--ink-3);margin-top:2px}

  /* ---------- 板块骨架 ---------- */
  .section{padding:88px 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:24px;margin-bottom:32px;flex-wrap:wrap}
  .section-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--ink)}
  .section-head .sub{font-size:15px;color:var(--ink-3);margin-top:8px;max-width:640px}

  /* ---------- 卡片 ---------- */
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5E1F8}
  .thumb{position:relative;overflow:hidden;background:var(--brand-soft);aspect-ratio:16/9}
  .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
  .card:hover .thumb img{transform:scale(1.03)}
  .thumb-badge{position:absolute;left:12px;bottom:12px;z-index:2}
  .arrow-circle{
    flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:999px;border:1px solid var(--line);color:var(--brand);
    background:#fff;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
  }
  .card:hover .arrow-circle,.list-row:hover .arrow-circle{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateX(2px)}

  /* ---------- 主体两栏 ---------- */
  .cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:32px;align-items:start}
  .cat-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}

  /* ---------- 合集大卡 ---------- */
  .collection-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .collection-card{overflow:hidden;display:flex;flex-direction:column;padding:0}
  .collection-card .thumb{border-bottom:1px solid var(--line)}
  .collection-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
  .collection-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink)}
  .collection-body p{
    font-size:14px;line-height:1.8;color:var(--ink-2);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .collection-foot{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    border-top:1px solid var(--line);padding-top:14px;margin-top:auto;font-size:13px;color:var(--ink-3);
  }
  .collection-foot .meta-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
  .dot-sep{width:3px;height:3px;border-radius:50%;background:#C6D2E5;display:inline-block}

  /* ---------- 锚点目录 ---------- */
  .anchor-card{padding:22px 18px}
  .anchor-card h3{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.04em;margin-bottom:12px;padding-left:4px}
  .anchor-list{display:flex;flex-direction:column;gap:2px}
  .anchor-list a{
    display:block;padding:10px 12px;border-radius:8px;border-left:2px solid transparent;
    font-size:14px;color:var(--ink-2);
    transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .anchor-list a:hover{background:var(--brand-soft);color:var(--brand)}
  .anchor-list a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--accent)}
  .anchor-tip{margin-top:16px;padding:12px;border-radius:10px;background:var(--accent-soft);font-size:13px;line-height:1.75;color:var(--accent-ink)}
  .side-links{display:flex;flex-direction:column;gap:8px;padding:20px 18px}
  .side-links h3{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.04em;margin-bottom:4px}
  .side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--ink-2);padding:8px 0;border-bottom:1px dashed var(--line);transition:color var(--ease)}
  .side-links a:last-child{border-bottom:none}
  .side-links a:hover{color:var(--brand)}

  /* ---------- 列表行 ---------- */
  .list-rows{border-top:1px solid var(--line);margin-top:8px}
  .list-row{
    display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:16px;align-items:center;
    padding:18px 12px;border-bottom:1px solid var(--line);
    transition:background var(--ease),transform var(--ease);
  }
  .list-row:hover{background:rgba(234,241,255,.6);transform:translateX(2px)}
  .list-row .idx{font-size:22px;font-weight:700;color:#BDD0F3;line-height:1;font-variant-numeric:tabular-nums}
  .r-title{
    display:block;font-size:17px;line-height:1.55;font-weight:600;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .r-desc{display:block;font-size:14px;line-height:1.7;color:var(--ink-3);margin-top:4px}
  .r-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3);white-space:nowrap}

  /* ---------- 相关推荐 ---------- */
  .rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .rec-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
  .rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .rec-body h3{
    font-size:17px;line-height:1.55;font-weight:600;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rec-body .rec-note{font-size:13px;color:var(--ink-3);line-height:1.7}
  .rec-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px;margin-top:auto;font-size:13px;color:var(--ink-3)}

  /* ---------- CTA ---------- */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    background:var(--brand-soft);border:1px solid #D8E5FF;border-radius:var(--r-big);
    padding:36px 34px;
  }
  .cta-band h2{font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-deep)}
  .cta-band p{font-size:15px;line-height:1.85;color:var(--ink-2);margin-top:8px;max-width:560px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#142B4F;color:#D6E0F0;padding:64px 0 0;margin-top:88px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
  .site-footer .logo-main{color:#fff}
  .site-footer .logo-badge{background:rgba(242,178,62,.16);color:#FFD98A;border-color:rgba(242,178,62,.5)}
  .footer-brand p{font-size:14px;line-height:1.9;color:#B9C6DC;margin:14px 0 16px;max-width:330px}
  .footer-tags{display:flex;flex-wrap:wrap;gap:8px}
  .footer-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#D6E0F0}
  .site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;padding:0}
  .footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#B9C6DC;line-height:1.7}
  .footer-links a{transition:color var(--ease)}
  .footer-links a:hover{color:var(--accent)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:#B9C6DC;
  }
  .fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .cat-hero-grid{grid-template-columns:1fr;gap:26px}
    .hero-media{aspect-ratio:16/9;order:-1}
    .cat-layout{grid-template-columns:1fr}
    .cat-side{position:static;order:2}
    .cat-hero-copy h1{font-size:32px}
    .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:1fr 1fr}
    .nav-links,.nav-cta{display:none}
    .nav-toggle{display:inline-flex}
  }
  @media (max-width:768px){
    .container{padding:0 16px}
    .section{padding:56px 0}
    .section-head h2{font-size:22px}
    .cat-hero{padding:24px 0 8px}
    .cat-hero-copy h1{font-size:28px;line-height:1.3}
    .cat-hero-copy .lede{font-size:15px}
    .cat-hero-grid{padding-bottom:26px}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:18px 0}
    .stat-num{font-size:20px}
    .collection-grid{grid-template-columns:1fr}
    .rec-grid{grid-template-columns:1fr}
    .list-row{grid-template-columns:34px minmax(0,1fr);row-gap:8px;padding:16px 8px}
    .list-row .idx{font-size:17px}
    .r-meta{grid-column:2;justify-content:flex-start;flex-wrap:wrap;gap:10px}
    .cta-band{padding:26px 20px}
    .cta-band h2{font-size:20px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .site-footer{margin-top:56px;padding-top:44px}
    .topbar-note{display:none}
    .topbar-right a:first-child{display:none}
  }
  @media (max-width:520px){
    .cat-hero-copy h1{font-size:25px}
    .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%}
    .r-desc{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.01ms !important;animation-duration:.01ms !important}
    .card:hover,.list-row:hover,.btn-primary:hover{transform:none !important}
    .card:hover .thumb img{transform:none !important}
  }

/* roulang page: article */
:root{
  --brand:#2F6BE0; --brand-deep:#1E4CA8; --brand-soft:#EAF1FF;
  --accent:#F2B23E; --accent-soft:#FFF4DC; --accent-ink:#6B4A0E;
  --ink:#16233A; --ink-2:#445369; --ink-3:#7C8AA0;
  --bg:#F7F9FD; --surface:#FFFFFF; --line:#E3E9F4;
  --ok:#2FA36B; --warn:#E2683C; --footer:#142B4F;
  --r-card:16px; --r-big:20px; --r-btn:10px; --r-img:12px;
  --shadow:0 1px 2px rgba(22,35,58,.05), 0 8px 24px -12px rgba(22,35,58,.16);
  --shadow-hover:0 12px 32px -12px rgba(47,107,224,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.page{
  margin:0;background:var(--bg);color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
body.page img{max-width:100%;height:auto;}
body.page a{text-decoration:none;color:inherit;}
body.page button{font-family:inherit;}
body .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* 顶部信息条 */
.topbar{background:var(--brand-soft);border-bottom:1px solid #DCE7FA;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:40px;font-size:13px;color:var(--ink-2);gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-brand{font-weight:600;color:var(--brand-deep);white-space:nowrap;}
.topbar-sep{width:1px;height:12px;background:#C6D6F2;flex:0 0 auto;}
.topbar-note{color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.topbar-right a,.topbar-right button{color:var(--ink-2);background:none;border:0;padding:0;font-size:13px;cursor:pointer;transition:color .18s ease;}
.topbar-right a:hover,.topbar-right button:hover{color:var(--brand);}
.topbar-right .topbar-fav{color:var(--accent-ink);background:var(--accent-soft);border:1px solid var(--accent);padding:3px 11px;border-radius:999px;font-size:12px;line-height:1.5;}
.topbar-right .topbar-fav:hover{background:#FFE9BC;color:var(--accent-ink);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.scrolled{box-shadow:0 10px 26px -18px rgba(22,35,58,.45);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:flex-start;gap:5px;line-height:1;flex:0 0 auto;}
.logo-main{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.logo-badge{background:var(--accent);color:#5C3E08;font-size:11px;font-weight:700;padding:3px 7px;border-radius:999px;margin-top:-3px;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .18s ease;}
.nav-links a:hover{color:var(--brand);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;transition:border-color .18s ease;}
.menu-toggle:hover{border-color:var(--brand);}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
.menu-toggle:focus-visible{outline:3px solid rgba(47,107,224,.25);outline-offset:2px;}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(20,43,79,.38);opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:70;}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:#fff;z-index:80;transform:translateX(102%);transition:transform .24s ease-out;padding:22px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;box-shadow:-12px 0 32px -18px rgba(22,35,58,.45);}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;color:var(--ink-2);cursor:pointer;}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.mobile-drawer a.drawer-link{padding:13px 4px;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);}
.mobile-drawer a.drawer-link:hover{color:var(--brand);}
.drawer-cta{margin-top:18px;}

/* 按钮体系 */
.btn-primary,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(30,76,168,.65);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--accent-soft);color:var(--accent-ink);border-color:var(--accent);}
.btn-accent:hover{background:#FFE9BC;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-primary:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible{outline:3px solid rgba(47,107,224,.25);outline-offset:2px;}
.text-link{font-size:14px;font-weight:500;color:var(--brand);border-bottom:2px solid transparent;transition:border-color .18s ease,color .18s ease;}
.text-link:hover{border-bottom-color:var(--accent);}

/* 面包屑与文章头 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);padding:22px 0 0;}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.crumb-current{color:var(--ink-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{padding:18px 0 30px;border-bottom:1px solid var(--line);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;background:var(--brand);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;}
.article-title{margin:16px 0 0;max-width:860px;font-size:40px;line-height:1.24;font-weight:700;color:var(--ink);letter-spacing:-.01em;word-break:break-word;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:14px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line);flex:0 0 auto;}

/* 双栏 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:48px;padding:40px 0 0;align-items:start;}

/* 正文排版 */
.prose-cn{font-size:17px;line-height:1.9;color:var(--ink-2);}
.prose-cn>*:first-child{margin-top:0;}
.prose-cn p{margin:0 0 1.1em;}
.prose-cn h2{position:relative;margin:36px 0 12px;padding-left:14px;font-size:24px;line-height:1.45;font-weight:700;color:var(--ink);}
.prose-cn h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:2px;background:var(--accent);}
.prose-cn h3{margin:24px 0 10px;font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);}
.prose-cn h4{margin:20px 0 8px;font-size:17px;font-weight:600;color:var(--ink);}
.prose-cn ul,.prose-cn ol{margin:0 0 1.1em;padding-left:1.5em;}
.prose-cn li{margin-bottom:.45em;line-height:1.8;}
.prose-cn blockquote{margin:0 0 1.2em;padding:16px 20px;background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--ink);}
.prose-cn blockquote p:last-child{margin-bottom:0;}
.prose-cn img{display:block;max-width:100%;margin:16px auto;border-radius:var(--r-img);}
.prose-cn figure{margin:16px 0;}
.prose-cn figcaption{margin-top:8px;font-size:13px;color:var(--ink-3);text-align:center;}
.prose-cn a{color:var(--brand);border-bottom:1px solid rgba(47,107,224,.35);}
.prose-cn a:hover{color:var(--brand-deep);border-bottom-color:var(--accent);}
.prose-cn strong{color:var(--ink);font-weight:600;}
.prose-cn mark{background:var(--accent-soft);color:var(--accent-ink);padding:0 4px;border-radius:4px;}
.prose-cn table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:0 0 1.2em;}
.prose-cn th,.prose-cn td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose-cn th{background:var(--brand-soft);color:var(--ink);font-weight:600;}
.prose-cn hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.prose-cn code{background:var(--brand-soft);color:var(--brand-deep);padding:2px 6px;border-radius:6px;font-size:.92em;}

/* 空态 */
.empty-state{background:var(--brand-soft);border:1px dashed #C3D5F5;border-radius:var(--r-card);padding:44px 24px;text-align:center;}
.empty-title{margin:0 0 16px;font-size:18px;font-weight:600;color:var(--ink);}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.tag-label{font-size:13px;color:var(--ink-3);}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:13px;transition:background-color .18s ease;}
.tag:hover{background:#DCE8FF;}

/* 收藏分享条 */
.share-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:32px;padding:24px;background:var(--accent-soft);border:1px solid #F6DCA6;border-radius:var(--r-card);}
.share-text h2{margin:0 0 6px;font-size:18px;font-weight:700;color:var(--ink);}
.share-text p{margin:0;font-size:14px;color:#7A5A1C;}
.share-actions{display:flex;flex-wrap:wrap;gap:10px;}

/* 上下篇 */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.pn-card{display:block;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDDFA;}
.pn-label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px;}
.pn-title{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.55;}
.pn-card.is-empty{background:var(--brand-soft);border-style:dashed;box-shadow:none;}
.pn-card.is-empty:hover{transform:none;box-shadow:none;border-color:#C3D5F5;}

/* 相关推荐 */
.related{margin-top:48px;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{margin:0;font-size:22px;font-weight:700;color:var(--ink);}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease;}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.thumb{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden;}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease;}
.rec-card:hover .thumb img{transform:scale(1.03);}
.rec-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rec-tag{align-self:flex-start;display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;}
.rec-title{margin:0;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card:hover .rec-title{color:var(--brand);}
.rec-desc{margin:0;font-size:13px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-meta{margin-top:auto;padding-top:10px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}

/* 侧栏 */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow);}
.side-title{margin:0 0 12px;font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.toc{display:flex;flex-direction:column;}
.toc a{position:relative;padding:9px 0 9px 12px;font-size:14px;color:var(--ink-2);border-left:2px solid var(--line);transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
.toc a:hover{color:var(--brand);background:rgba(234,241,255,.65);}
.toc a.active{color:var(--brand);border-left-color:var(--accent);font-weight:600;}
.side-posts{display:flex;flex-direction:column;}
.side-post{display:block;padding:11px 0;border-bottom:1px dashed var(--line);}
.side-post:last-child{border-bottom:none;padding-bottom:0;}
.sp-title{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.55;}
.side-post:hover .sp-title{color:var(--brand);}
.sp-meta{display:block;margin-top:4px;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.fav-card{background:var(--accent-soft);border-color:#F6DCA6;}
.fav-card .side-title{color:var(--accent-ink);}
.fav-card p{margin:0 0 14px;font-size:13px;line-height:1.7;color:#7A5A1C;}

/* 页脚 */
.site-footer{margin-top:88px;background:var(--footer);color:#C9D6EA;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.3fr 1fr;gap:40px;}
.footer-brand .logo-main{color:#fff;font-size:18px;}
.footer-brand p{margin:14px 0 0;font-size:14px;line-height:1.8;color:#B9C6DC;max-width:320px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:#D6E1F2;}
.site-footer h4{margin:4px 0 14px;font-size:14px;font-weight:600;color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#B9C6DC;}
.footer-links a{color:#B9C6DC;transition:color .18s ease;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#B9C6DC;}
.fb-right{display:flex;gap:18px;flex-wrap:wrap;}

/* 提示条 */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);background:#142B4F;color:#fff;padding:12px 20px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:120;box-shadow:0 12px 32px -12px rgba(22,35,58,.6);}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* 响应式 */
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none;}
  .menu-toggle{display:flex;}
  .article-layout{grid-template-columns:1fr;gap:32px;}
  .sidebar{position:static;order:2;}
  .article-title{font-size:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body .container{padding:0 16px;}
  .article-title{font-size:28px;line-height:1.3;}
  .article-meta{font-size:13px;gap:10px;}
  .prose-cn{font-size:16px;line-height:1.85;}
  .prose-cn h2{font-size:21px;margin-top:32px;}
  .prose-cn h3{font-size:18px;}
  .prevnext{grid-template-columns:1fr;}
  .share-bar{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .topbar-note,.topbar-sep,.topbar-right a:first-child{display:none;}
  .related{margin-top:36px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .grid-3{grid-template-columns:1fr;}
  .share-actions{width:100%;}
  .share-actions .btn-primary,.share-actions .btn-ghost,.share-actions .btn-accent{flex:1 1 auto;padding:0 14px;font-size:14px;}
  .article-title{font-size:25px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .btn-primary:hover,.btn-ghost:hover,.btn-accent:hover,.pn-card:hover,.rec-card:hover{transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#2F6BE0;
  --brand-deep:#1E4CA8;
  --brand-soft:#EAF1FF;
  --accent:#F2B23E;
  --accent-soft:#FFF4DC;
  --accent-ink:#6B4A0E;
  --ink:#16233A;
  --ink-2:#445369;
  --ink-3:#7C8AA0;
  --bg:#F7F9FD;
  --surface:#FFFFFF;
  --line:#E3E9F4;
  --ok:#2FA36B;
  --warn:#E2683C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(22,35,58,.05),0 8px 24px -12px rgba(22,35,58,.16);
  --shadow-hover:0 12px 32px -12px rgba(47,107,224,.28);
  --section:88px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.35;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(47,107,224,.25);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--line);}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;font-size:13px;color:var(--ink-2);}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-left strong{color:var(--brand-deep);font-weight:700;}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none;}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none;}
.topbar-right a{color:var(--ink-2);}
.topbar-right a:hover{color:var(--brand);}
.topbar-right .tb-cta{color:var(--brand-deep);font-weight:600;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.scrolled{box-shadow:0 10px 30px -18px rgba(22,35,58,.45);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;font-size:20px;font-weight:700;letter-spacing:.2px;color:var(--ink);flex:none;}
.logo:hover{color:var(--ink);}
.logo-main{color:var(--ink);}
.logo-badge{display:inline-block;margin-left:6px;transform:translateY(-7px);font-size:11px;line-height:1.5;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);border:1px solid var(--accent);border-radius:999px;padding:0 7px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--ink-2);border-radius:8px;transition:color .18s ease,background .18s ease;}
.nav-links a:hover{color:var(--brand);background:rgba(234,241,255,.7);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;background:#fff;}
.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;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-mask{position:fixed;inset:0;background:rgba(20,43,79,.35);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:55;}
.nav-mask.show{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost,.btn-accent{
  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:500;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px -10px rgba(47,107,224,.7);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-accent{background:var(--accent-soft);color:var(--accent-ink);border:1px solid var(--accent);}
.btn-accent:hover{background:#FFE9BC;color:var(--accent-ink);}
.btn-accent:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;}
.badge-solid{background:var(--brand);color:#fff;}
.badge-soft{background:var(--brand-soft);color:var(--brand-deep);}
.badge-time{background:var(--accent-soft);color:var(--accent-ink);}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:12px;color:var(--ink-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9C6DC;}
.breadcrumb .cur{color:var(--ink-2);}

/* ---------- 页头 ---------- */
.page-head{padding:28px 0 0;}
.page-head .head-inner{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:center;}
.page-head h1{font-size:40px;line-height:1.25;margin:14px 0 16px;letter-spacing:-.3px;}
.page-head .lede{max-width:700px;font-size:17px;line-height:1.85;color:var(--ink-2);}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.head-media{aspect-ratio:4/3;border-radius:var(--radius-panel);overflow:hidden;background:var(--brand-soft);border:1px solid var(--line);box-shadow:var(--shadow-sm);position:relative;}
.head-media img{width:100%;height:100%;object-fit:cover;}
.head-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(47,107,224,.04),rgba(47,107,224,.16));}
.head-media .media-note{position:absolute;left:16px;bottom:16px;z-index:2;background:rgba(255,255,255,.94);color:var(--ink);font-size:13px;padding:6px 12px;border-radius:999px;box-shadow:var(--shadow-sm);}

/* ---------- 说明条 ---------- */
.notice-bar{margin-top:36px;background:var(--brand-soft);border-left:3px solid var(--accent);border-radius:12px;padding:16px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.notice-bar strong{color:var(--brand-deep);}

/* ---------- 主体两栏 ---------- */
.review-layout{display:grid;grid-template-columns:248px 1fr;gap:40px;align-items:start;margin-top:44px;}
.toc{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:20px;}
.toc-title{font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--ink-3);margin-bottom:12px;text-transform:uppercase;}
.toc-link{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:background .18s ease,color .18s ease,transform .18s ease;}
.toc-link::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:transparent;transition:background .18s ease;}
.toc-link:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px);}
.toc-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;}
.toc-link.active::before{background:var(--accent);}
.toc-link em{font-style:normal;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.toc-card{margin-top:18px;padding:16px;border-radius:12px;background:var(--accent-soft);border:1px solid #F6DCA2;}
.toc-card p{font-size:13px;line-height:1.7;color:var(--accent-ink);margin-bottom:10px;}

/* ---------- 分组列表 ---------- */
.group + .group{margin-top:56px;}
.group-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:2px solid var(--brand-soft);margin-bottom:4px;}
.group-head h2{font-size:24px;line-height:1.4;}
.group-head span{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;padding-bottom:4px;}
.list{border-top:1px solid var(--line);}
.list-row{display:grid;grid-template-columns:48px 1fr auto 28px;gap:16px;align-items:center;padding:18px 12px 18px 4px;border-bottom:1px solid var(--line);color:inherit;transition:background .2s ease,transform .2s ease;}
.list-row:hover,.list-row:focus-visible{background:rgba(234,241,255,.65);transform:translateX(2px);color:inherit;}
.row-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;}
.row-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.row-body p{font-size:13.5px;line-height:1.7;color:var(--ink-3);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.row-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap;}
.row-arrow{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);color:var(--brand);font-size:13px;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;}
.list-row:hover .row-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(2px);}

/* ---------- 通用板块 ---------- */
.section{margin-top:var(--section);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:28px;line-height:1.4;letter-spacing:-.2px;}
.section-head p{font-size:15px;color:var(--ink-3);margin-top:8px;}
.link-more{font-size:15px;color:var(--brand);border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color .2s ease,color .2s ease;}
.link-more:hover{border-bottom-color:var(--accent);color:var(--brand-deep);}

/* ---------- 相关推荐卡片 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDCF5;}
.card-media{aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}

/* ---------- CTA ---------- */
.cta-band{margin-top:var(--section);background:var(--brand-soft);border:1px solid #D7E3FA;border-radius:var(--radius-panel);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h2{font-size:24px;line-height:1.45;}
.cta-band p{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--section);background:#142B4F;color:#C8D4E6;}
.site-footer .container{padding-top:60px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.site-footer .logo{color:#fff;}
.site-footer .logo-main{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.9;color:#B9C6DC;margin:14px 0 16px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#B9C6DC;line-height:1.7;}
.footer-links a{color:#C8D4E6;}
.footer-links a:hover{color:var(--accent);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:#D6E0EF;line-height:1.7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#B9C6DC;}
.footer-bottom .fb-right{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-head .head-inner{grid-template-columns:1fr 280px;gap:32px;}
}
@media (max-width:1024px){
  :root{--section:64px;}
  .page-head h1{font-size:34px;}
  .page-head .head-inner{grid-template-columns:1fr;}
  .head-media{aspect-ratio:16/9;max-width:560px;}
  .review-layout{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;display:flex;flex-wrap:wrap;gap:8px;padding:14px;}
  .toc-title{width:100%;margin-bottom:4px;}
  .toc-link{background:var(--bg);}
  .toc-link::before{display:none;}
  .toc-link em{display:none;}
  .toc-card{display:none;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:0;right:0;z-index:60;height:100vh;width:280px;
    background:#fff;flex-direction:column;align-items:stretch;gap:2px;
    padding:88px 20px 28px;transform:translateX(100%);
    transition:transform .24s ease;box-shadow:-16px 0 48px -24px rgba(22,35,58,.5);
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{padding:14px 10px;border-bottom:1px solid var(--line);font-size:16px;border-radius:0;}
  .nav-links a:hover{background:transparent;}
  .nav-links a.active{background:transparent;color:var(--brand);}
  .nav-links a.active::after{display:none;}
  .nav-links a.active::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;background:var(--accent);}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
}
@media (max-width:767px){
  .topbar-right a:not(.tb-cta){display:none;}
  .topbar-left{font-size:12px;}
  .page-head{padding-top:20px;}
  .page-head h1{font-size:28px;line-height:1.32;}
  .page-head .lede{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost,.cta-actions .btn-accent{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .rec-grid{grid-template-columns:1fr;}
  .list-row{grid-template-columns:44px 1fr;grid-template-areas:"num body" "num meta";row-gap:6px;align-items:start;padding:16px 8px 16px 0;}
  .row-num{grid-area:num;width:36px;height:36px;font-size:14px;margin-top:2px;}
  .row-body{grid-area:body;}
  .row-time{grid-area:meta;font-size:12px;}
  .row-arrow{display:none;}
  .group-head h2{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-property:color,background-color,border-color,box-shadow !important;}
  html{scroll-behavior:auto;}
  .list-row:hover,.list-row:focus-visible{transform:none;}
  .card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
    --brand:#2F6BE0;
    --brand-deep:#1E4CA8;
    --brand-soft:#EAF1FF;
    --accent:#F2B23E;
    --accent-soft:#FFF4DC;
    --accent-ink:#6B4A0E;
    --ink:#16233A;
    --ink-2:#445369;
    --ink-3:#7C8AA0;
    --bg:#F7F9FD;
    --surface:#FFFFFF;
    --line:#E3E9F4;
    --radius:16px;
    --radius-lg:20px;
    --shadow:0 1px 2px rgba(22,35,58,.05), 0 8px 24px -12px rgba(22,35,58,.16);
    --shadow-lift:0 12px 32px -12px rgba(47,107,224,.28);
    --ease:.22s ease;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--ink-2);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;}
  h1,h2,h3,h4,p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ---------- 顶部信息条 ---------- */
  .topbar{background:var(--brand-soft);border-bottom:1px solid rgba(47,107,224,.08);}
  .topbar .container{height:40px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-2);}
  .topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
  .topbar-left strong{color:var(--brand-deep);font-weight:600;white-space:nowrap;}
  .topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .topbar-dot{width:6px;height:6px;border-radius:999px;background:var(--accent);flex:0 0 auto;}
  .topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
  .topbar-right a{color:var(--brand-deep);font-weight:500;transition:color var(--ease);}
  .topbar-right a:hover{color:var(--brand);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}

  /* ---------- 主导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;}
  .header-main{background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease);}
  .site-header.is-stuck .header-main{box-shadow:0 10px 28px -22px rgba(22,35,58,.65);}
  .header-inner{height:72px;display:flex;align-items:center;gap:20px;}

  .logo{display:inline-flex;align-items:flex-start;gap:5px;font-weight:700;color:var(--ink);font-size:19px;letter-spacing:.4px;line-height:1.1;flex:0 0 auto;}
  .logo-main{white-space:nowrap;}
  .logo-badge{
    font-size:11px;font-weight:600;line-height:1.5;
    color:var(--accent-ink);background:var(--accent-soft);
    border:1px solid var(--accent);border-radius:999px;
    padding:1px 7px;transform:translateY(-3px);white-space:nowrap;
  }

  .nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
  .nav-links a{
    position:relative;font-size:15px;color:var(--ink-2);
    padding:8px 0;transition:color var(--ease);white-space:nowrap;
  }
  .nav-links a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--accent);border-radius:2px;
    transform:scaleX(0);transform-origin:left center;
    transition:transform var(--ease);
  }
  .nav-links a:hover{color:var(--brand);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.active{color:var(--brand);font-weight:600;}
  .nav-links a.active::after{transform:scaleX(1);}
  .nav-links a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);border-radius:6px;}

  .header-cta{flex:0 0 auto;}

  .menu-toggle{
    display:none;width:44px;height:44px;margin-left:auto;
    border:1px solid var(--line);border-radius:10px;background:#fff;
    align-items:center;justify-content:center;flex-direction:column;gap:4px;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
  .menu-toggle:hover{border-color:var(--brand);}
  .menu-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;
    font-size:15px;font-weight:500;line-height:1;
    transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(47,107,224,.65);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-accent{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink);}
  .btn-accent:hover{background:#FFE9BC;transform:translateY(-1px);}
  .btn-accent:active{transform:translateY(0);}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);}

  .text-link{
    color:var(--brand);font-size:15px;font-weight:500;white-space:nowrap;
    transition:color var(--ease);
  }
  .text-link:hover{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}

  /* ---------- 通用徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;
    border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap;
  }
  .badge-solid{background:var(--brand);color:#fff;}
  .badge-soft{background:var(--brand-soft);color:var(--brand);}
  .badge-time{background:var(--accent-soft);color:var(--accent-ink);font-variant-numeric:tabular-nums;}

  /* ---------- 移动抽屉 ---------- */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(22,35,58,.42);z-index:90;
    opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:308px;max-width:86vw;background:#fff;z-index:100;
    transform:translateX(100%);transition:transform .24s ease-out;
    display:flex;flex-direction:column;padding:20px;
    box-shadow:-14px 0 40px -22px rgba(22,35,58,.5);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
  .drawer-close{
    width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;
    color:var(--ink-2);font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center;
    transition:border-color var(--ease),color var(--ease);
  }
  .drawer-close:hover{border-color:var(--brand);color:var(--brand);}
  .drawer-nav{display:flex;flex-direction:column;padding:12px 0;gap:2px;}
  .drawer-nav a{
    padding:13px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
    transition:background-color var(--ease),color var(--ease),transform var(--ease);
  }
  .drawer-nav a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px);}
  .drawer-nav a.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
  .drawer-cta{margin-top:auto;width:100%;}

  /* ---------- 分类页头部 ---------- */
  .cat-hero{position:relative;overflow:hidden;padding:48px 0 40px;border-bottom:1px solid var(--line);}
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity:.08;pointer-events:none;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(247,249,253,.55) 0%,rgba(247,249,253,.92) 62%,var(--bg) 100%);
    pointer-events:none;
  }
  .cat-hero .container{position:relative;z-index:1;}

  .crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--ink-3);margin-bottom:18px;}
  .crumb a{color:var(--ink-3);transition:color var(--ease);}
  .crumb a:hover{color:var(--brand);}
  .crumb .sep{color:#B7C3D6;}

  .cat-title{
    font-size:40px;line-height:1.2;font-weight:700;color:var(--ink);
    letter-spacing:-.4px;margin-top:14px;max-width:900px;
  }
  .cat-lead{font-size:17px;line-height:1.8;color:var(--ink-2);margin-top:16px;max-width:800px;}

  .filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
  .chip{
    display:inline-flex;align-items:center;height:36px;padding:0 16px;
    border-radius:999px;background:#fff;border:1px solid var(--line);
    color:var(--ink-2);font-size:14px;
    transition:border-color var(--ease),color var(--ease),transform var(--ease),background-color var(--ease),box-shadow var(--ease);
  }
  .chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:0 6px 16px -12px rgba(47,107,224,.6);}
  .chip:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);}
  .chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:500;}
  .chip.is-on:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;}

  /* ---------- 板块 ---------- */
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px;flex-wrap:wrap;}
  .section-head h2{font-size:28px;line-height:1.32;font-weight:700;color:var(--ink);}
  .section-head p{font-size:15px;color:var(--ink-3);margin-top:8px;}

  /* ---------- 卡片 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card{
    display:flex;flex-direction:column;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);overflow:hidden;
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:#D6E2FA;}
  .card-media{
    position:relative;display:block;aspect-ratio:16/9;overflow:hidden;
    background:var(--brand-soft);
  }
  .card-media.square{aspect-ratio:1/1;}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .card:hover .card-media img{transform:scale(1.04);}
  .media-fallback{
    position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    background:var(--brand-soft);color:var(--ink-3);font-size:13px;text-align:center;padding:12px;
  }
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-meta-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .card-title{
    font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-title a{transition:color var(--ease);}
  .card-title a:hover{color:var(--brand);}
  .card-desc{
    font-size:14px;line-height:1.72;color:var(--ink-3);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-foot{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
  }
  .card-foot .arrow{color:var(--brand);font-size:16px;line-height:1;transition:transform var(--ease);}
  .card:hover .card-foot .arrow{transform:translateX(3px);}

  /* ---------- 分页 ---------- */
  .pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:44px;flex-wrap:wrap;}
  .pager a,.pager span{
    min-width:42px;height:42px;padding:0 14px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:10px;background:#fff;
    font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums;
    transition:border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
  }
  .pager a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px -14px rgba(47,107,224,.7);}
  .pager a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);}
  .pager .is-current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
  .pager .is-current:hover{transform:none;box-shadow:none;}

  /* ---------- 订阅条 ---------- */
  .subscribe-strip{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0;}
  .sub-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
  .sub-inner h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);}
  .sub-inner p{font-size:14px;color:var(--ink-3);margin-top:6px;}
  .sub-form{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
  .sub-form input{
    height:44px;width:270px;max-width:100%;padding:0 16px;
    border:1px solid var(--line);border-radius:10px;background:#fff;
    font-size:15px;color:var(--ink);
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .sub-form input::placeholder{color:var(--ink-3);}
  .sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,224,.18);}

  /* ---------- CTA ---------- */
  .cta-band{background:var(--brand-soft);}
  .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:52px 0;flex-wrap:wrap;}
  .cta-inner h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--ink);}
  .cta-inner p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-top:10px;max-width:620px;}
  .cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#142B4F;color:#D6E0F0;padding:64px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
  .site-footer .logo{color:#fff;font-size:19px;}
  .site-footer .logo-badge{background:rgba(242,178,62,.16);border-color:rgba(242,178,62,.55);color:#F6C56E;}
  .footer-brand p{font-size:14px;line-height:1.85;color:#B9C6DC;margin-top:16px;max-width:320px;}
  .footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .footer-tags span{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#CBD8EA;
  }
  .site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px;color:#B9C6DC;}
  .footer-links a{color:#B9C6DC;transition:color var(--ease),transform var(--ease);}
  .footer-links a:hover{color:var(--accent);transform:translateX(2px);}
  .footer-links a:focus-visible{outline:none;color:var(--accent);box-shadow:0 0 0 3px rgba(242,178,62,.3);border-radius:4px;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:#B9C6DC;
  }
  .fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-toggle{display:inline-flex;}
    .header-cta{display:none;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:768px){
    .container{padding:0 16px;}
    .section{padding:48px 0;}
    .section-tight{padding:40px 0;}
    .cat-hero{padding:32px 0 30px;}
    .cat-title{font-size:28px;line-height:1.3;}
    .cat-lead{font-size:15.5px;}
    .section-head h2{font-size:22px;line-height:1.35;}
    .cta-inner{padding:40px 0;}
    .cta-inner h2{font-size:21px;}
    .sub-form input{width:100%;}
    .sub-form{width:100%;}
    .sub-form .btn{width:100%;}
    .footer-grid{gap:28px;padding-bottom:32px;}
  }
  @media (max-width:640px){
    .topbar-left span{display:none;}
    .topbar-right a:not(:first-child){display:none;}
    .card-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .pager a,.pager span{min-width:38px;height:38px;padding:0 11px;font-size:13px;}
    .footer-bottom{font-size:12px;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
    .card:hover,.btn:hover,.pager a:hover,.chip:hover,.footer-links a:hover{transform:none !important;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category4 */
:root{
  --brand:#2F6BE0;
  --brand-deep:#1E4CA8;
  --brand-soft:#EAF1FF;
  --accent:#F2B23E;
  --accent-soft:#FFF4DC;
  --accent-ink:#6B4A0E;
  --ink:#16233A;
  --ink-2:#445369;
  --ink-3:#7C8AA0;
  --bg:#F7F9FD;
  --surface:#FFFFFF;
  --line:#E3E9F4;
  --ok:#2FA36B;
  --warn:#E2683C;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(22,35,58,.05),0 8px 24px -12px rgba(22,35,58,.16);
  --shadow-hover:0 12px 32px -12px rgba(47,107,224,.28);
  --ease:.22s ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1em;padding-left:1.4em;}
li{margin-bottom:.35em;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-2);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding:6px 24px;max-width:1200px;margin:0 auto;}
.topbar-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.topbar-brand{font-weight:600;color:var(--brand-deep);letter-spacing:.02em;}
.topbar-note{color:var(--ink-3);}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:var(--ink-2);transition:color var(--ease);}
.topbar-right a:hover{color:var(--brand);}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--ease);}
.site-header.scrolled{box-shadow:0 6px 20px -14px rgba(22,35,58,.4);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:flex-start;gap:4px;line-height:1;}
.logo-main{font-size:21px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.logo-badge{
  font-size:11px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);
  border:1px solid var(--accent);border-radius:999px;padding:2px 7px;transform:translateY(-6px);
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 12px;
  font-size:15px;color:var(--ink-2);border-radius:8px;transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--accent);border-radius:2px;
}
.nav-cta{white-space:nowrap;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn-primary,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink);}
.btn-accent:hover{background:#FFE9BC;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-primary:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible,.nav-links a:focus-visible,.footer-links a:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(47,107,224,.25);
}
.text-link{color:var(--brand);font-weight:500;border-bottom:2px solid transparent;transition:border-color var(--ease),color var(--ease);}
.text-link:hover{border-bottom-color:var(--accent);}

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap;}
.badge-brand{background:var(--brand);color:#fff;}
.badge-soft{background:var(--brand-soft);color:var(--brand-deep);}
.badge-time{background:var(--accent-soft);color:var(--accent-ink);}

/* ============ 卡片 ============ */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);}
.card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D5E1F7;}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:12px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:20px 0 0;}
.breadcrumb a{color:var(--ink-3);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3CDDE;}

/* ============ Hero ============ */
.page-hero{padding:8px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:28px 0 56px;}
.hero-copy h1{font-size:40px;line-height:1.28;letter-spacing:-.01em;margin:18px 0 16px;}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-art{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--brand-soft);aspect-ratio:16/11;box-shadow:var(--shadow);}
.hero-art img{width:100%;height:100%;object-fit:cover;}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(47,107,224,.10),rgba(47,107,224,.28));}
.hero-art figcaption{position:absolute;left:20px;bottom:18px;right:20px;color:#fff;font-size:13px;line-height:1.6;z-index:2;}
.hero-art figcaption strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px;}

/* ============ 通用板块 ============ */
.section{padding:0 0 88px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head p{color:var(--ink-3);font-size:14px;margin:6px 0 0;}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);font-weight:600;margin-bottom:10px;}
.section-kicker::before{content:"";width:16px;height:3px;border-radius:3px;background:var(--accent);}

/* ============ 两栏问答布局 ============ */
.qa-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start;}
.qa-main{display:flex;flex-direction:column;gap:24px;min-width:0;}
.qa-block h3{font-size:20px;margin-bottom:14px;padding-left:14px;position:relative;}
.qa-block h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--accent);}
.qa-block p{font-size:16px;line-height:1.85;}
.qa-block ul{list-style:none;padding-left:0;margin:16px 0 0;}
.qa-block ul li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.qa-block ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.55;}
.img-wrap{border-radius:12px;overflow:hidden;background:var(--brand-soft);aspect-ratio:16/9;margin-bottom:20px;border:1px solid var(--line);}
.img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.qa-block:hover .img-wrap img{transform:scale(1.02);}

/* ============ 侧栏 ============ */
.qa-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);}
.side-card h4{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h4::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.side-nav{display:flex;flex-direction:column;gap:2px;}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--ink-2);transition:background var(--ease),color var(--ease),transform var(--ease);}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateX(2px);}
.side-nav a.is-current{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;box-shadow:inset 2px 0 0 var(--accent);}
.side-nav .arrow{color:var(--ink-3);font-size:12px;}
.hot-list{display:flex;flex-direction:column;}
.hot-item{display:block;padding:12px 0;border-bottom:1px solid var(--line);transition:transform var(--ease),background var(--ease);}
.hot-item:last-child{border-bottom:none;padding-bottom:0;}
.hot-item:hover{transform:translateX(3px);}
.hot-item .hot-title{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.6;margin-bottom:6px;}
.hot-item:hover .hot-title{color:var(--brand);}
.hot-item .hot-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);}
.side-cta{background:var(--accent-soft);border:1px solid var(--accent);border-radius:var(--radius);padding:20px;}
.side-cta h4{font-size:16px;color:var(--accent-ink);margin-bottom:8px;}
.side-cta p{font-size:13px;line-height:1.7;color:var(--accent-ink);margin-bottom:14px;}
.side-cta .btn-accent{height:40px;width:100%;background:#fff;}
.side-cta .btn-accent:hover{background:#FFE9BC;}

/* ============ FAQ ============ */
.faq-block{margin-top:8px;}
.faq-block > h2{font-size:28px;margin-bottom:6px;}
.faq-block > .faq-sub{color:var(--ink-3);font-size:14px;margin-bottom:24px;}
.faq-list{max-width:780px;display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item:hover{border-color:#D5E1F7;}
.faq-item.open{box-shadow:var(--shadow-hover);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;transition:color var(--ease);}
.faq-q:hover{color:var(--brand);}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(47,107,224,.25);}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:var(--brand-soft);transition:background var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transition:transform var(--ease),opacity var(--ease),background var(--ease);}
.faq-icon::before{width:9px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:9px;transform:translate(-50%,-50%);}
.faq-item.open .faq-icon{background:var(--accent-soft);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent-ink);}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--ease);}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:760px;}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{display:flex;flex-direction:column;padding:0;overflow:hidden;}
.rec-card .img-wrap{margin:0;border-radius:0;border:0;border-bottom:1px solid var(--line);}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-body p{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.rec-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);}
.rec-card:hover h3{color:var(--brand);}

/* ============ CTA 区 ============ */
.cta-band{background:var(--brand-soft);border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--ink-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.form-inline{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap;}
.form-inline input{height:44px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;font-size:15px;color:var(--ink);min-width:260px;transition:border-color var(--ease),box-shadow var(--ease);}
.form-inline input::placeholder{color:var(--ink-3);}
.form-inline input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,224,.18);}

/* ============ 页脚 ============ */
.site-footer{background:#142B4F;color:#DCE5F3;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-badge{background:rgba(242,178,62,.16);border-color:rgba(242,178,62,.55);color:#F7D89C;}
.footer-brand p{font-size:14px;line-height:1.8;color:#B9C6DC;margin:16px 0 18px;max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:#CBD8EA;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#B9C6DC;}
.footer-links a,.footer-links span{color:#B9C6DC;transition:color var(--ease);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#B9C6DC;}
.fb-right{display:flex;gap:20px;flex-wrap:wrap;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .hero-grid{gap:32px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .hero-copy h1{font-size:34px;}
  .hero-art{aspect-ratio:16/9;order:-1;}
  .qa-layout{grid-template-columns:1fr;}
  .qa-side{position:static;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:280px;max-width:84vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;box-shadow:-16px 0 40px -24px rgba(22,35,58,.5);
    transform:translateX(102%);transition:transform var(--ease);z-index:80;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{height:46px;border-radius:10px;font-size:16px;}
  .nav-links a.active::after{left:12px;right:auto;width:22px;bottom:8px;}
  .nav-cta{display:none;}
  .nav-overlay{position:fixed;inset:0;background:rgba(22,35,58,.34);opacity:0;pointer-events:none;transition:opacity var(--ease);z-index:70;}
  .nav-overlay.show{opacity:1;pointer-events:auto;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .topbar-inner{padding:6px 16px;}
  .topbar-note{display:none;}
  .topbar-right a:first-child{display:none;}
  .section{padding-bottom:56px;}
  .hero-copy h1{font-size:28px;line-height:1.35;}
  .hero-lead{font-size:16px;}
  .section-head h2{font-size:22px;}
  .faq-block > h2{font-size:22px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:21px;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .form-inline input{min-width:0;width:100%;}
  .form-inline .btn-primary{width:100%;}
  .side-card,.card{padding:20px;}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{flex:1 1 auto;}
}
@media (max-width:520px){
  .hero-meta .badge{font-size:11px;}
  .page-hero{padding-top:4px;}
  .footer-bottom{font-size:12px;}
  .fb-right{gap:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  .card-hover:hover,.qa-side .side-nav a:hover,.hot-item:hover,.btn-primary:hover,.btn-ghost:hover,.btn-accent:hover{transform:none;}
  html{scroll-behavior:auto;}
}