/* roulang page: index */
/* ===================== 设计令牌 ===================== */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --nav-w:232px;
  --r-lg:20px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --gap-sec:96px;
  --ease:.28s cubic-bezier(.2,.7,.3,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Inter",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-weight:400;
}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;transition:color .22s;}
a:hover{color:var(--primary);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,h5,h6,p,figure{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ===================== 布局骨架 ===================== */
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}
.content{margin-left:var(--nav-w);min-height:100vh;}
.section{padding-top:var(--gap-sec);}

/* ===================== 左侧竖向导航 ===================== */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:50;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;padding:22px 18px 20px;}
.brand__mark{
  position:relative;flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:var(--primary);overflow:hidden;
}
.brand__mark::before{content:"";position:absolute;left:8px;top:8px;width:11px;height:22px;border-radius:4px;background:#fff;}
.brand__mark::after{content:"";position:absolute;right:8px;top:8px;width:10px;height:10px;border-radius:3px;background:var(--accent);}
.brand__text{display:flex;flex-direction:column;line-height:1.28;min-width:0;}
.brand__name{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:0;}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.08em;}
.side-nav__list{flex:1;padding:6px 12px 12px;}
.side-nav__list a{
  position:relative;display:flex;align-items:center;
  height:46px;padding:0 14px;margin-bottom:4px;
  border-radius:var(--r-md);
  font-size:15px;color:var(--ink-2);
  transition:background .2s,color .2s;
}
.side-nav__list a:hover{background:var(--primary-50);color:var(--primary);}
.side-nav__list a.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.side-nav__list a.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:3px;background:var(--primary);
}
.side-nav__foot{padding:16px 18px 22px;border-top:1px solid var(--line);}
.side-nav__note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-3);}

/* ===================== 移动端顶栏与抽屉 ===================== */
.mobile-bar{display:none;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(84vw,340px);
  background:var(--surface);
  z-index:80;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 16px;border-bottom:1px solid var(--line);flex:0 0 60px;
}
.drawer__close{
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--bg-alt);color:var(--ink-2);
  display:grid;place-items:center;font-size:20px;line-height:1;
}
.drawer__close:hover{background:var(--primary-50);color:var(--primary);}
.drawer__nav{flex:1;padding:10px 12px;overflow-y:auto;}
.drawer__nav a{
  display:flex;align-items:center;height:52px;padding:0 14px;
  border-radius:var(--r-md);font-size:16px;color:var(--ink-2);
  transition:background .2s,color .2s;
}
.drawer__nav a:hover{background:var(--primary-50);color:var(--primary);}
.drawer__nav a.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.drawer__foot{padding:12px 16px 20px;border-top:1px solid var(--line);}
.scrim{
  position:fixed;inset:0;background:rgba(14,26,43,.45);
  z-index:70;opacity:0;visibility:hidden;
  transition:opacity .3s,visibility .3s;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ===================== 通用组件 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .22s,color .22s,box-shadow .22s,transform .22s,border-color .22s;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(30,91,214,.24);}
.btn--primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.62);}
.btn--ghost:hover{background:rgba(255,255,255,.26);color:#fff;}
.btn--outline{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn--outline:hover{background:var(--primary-50);color:var(--primary);}
.btn--white{background:#fff;color:var(--primary-700);}
.btn--white:hover{background:#fff;color:var(--primary-700);transform:translateY(-1px);box-shadow:0 12px 28px rgba(8,20,40,.24);}
.btn--ghost-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.58);}
.btn--ghost-light:hover{background:rgba(255,255,255,.28);color:#fff;}
.btn--block{width:100%;}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--primary-50);
  color:var(--primary);font-size:12px;font-weight:600;letter-spacing:0;
}
.badge--accent{background:var(--accent-50);color:#0B8F85;}
.badge--spark{background:rgba(242,85,90,.1);color:var(--spark);}

.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--bg-alt);
  font-size:13px;color:var(--ink-2);
  transition:background .2s,color .2s;
}
.tag:hover{background:var(--primary-50);color:var(--primary);}

.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);font-size:13px;color:var(--ink-2);
  transition:background .2s,color .2s,border-color .2s;
}
.chip:hover{border-color:var(--primary);color:var(--primary);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}

.thumb{
  position:relative;overflow:hidden;
  background:var(--bg-alt);border-radius:var(--r-md);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.thumb--16x9{aspect-ratio:16/9;}
.thumb--4x3{aspect-ratio:4/3;}

.link-more{font-size:14px;font-weight:600;color:var(--primary);}
.link-more:hover{color:var(--primary-700);}

/* ===================== 板块标题 ===================== */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:28px;
}
.sec-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.sec-head__sub{display:block;margin-top:8px;font-size:14px;color:var(--ink-3);font-weight:400;}
.sec-head__right{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}

/* ===================== 首屏沉浸海报 ===================== */
.hero-shell{padding-top:24px;}
.hero{
  position:relative;height:560px;border-radius:24px;overflow:hidden;
  background:#0E1A2B;box-shadow:var(--sh-2);
}
.hero__media{position:absolute;inset:0;}
.hero__media img{width:100%;height:100%;object-fit:cover;}
.hero__mask{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,20,40,.78) 0%,rgba(8,20,40,.34) 46%,rgba(8,20,40,.12) 100%);
}
.hero__inner{
  position:absolute;left:0;right:0;bottom:0;
  padding:0 48px 52px;max-width:740px;
}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.hero h1{
  color:#fff;font-size:clamp(28px,4.2vw,46px);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;
  text-shadow:0 2px 18px rgba(8,20,40,.4);
}
.hero__sub{
  margin-top:14px;color:rgba(255,255,255,.9);
  font-size:clamp(15px,1.5vw,18px);line-height:1.7;max-width:560px;
}
.hero__btns{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.hero__stat{
  position:absolute;right:40px;bottom:48px;
  display:flex;gap:26px;padding:18px 24px;
  background:rgba(255,255,255,.95);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}
.hero__stat-item{display:flex;flex-direction:column;line-height:1.3;}
.hero__stat-num{font-size:24px;font-weight:800;color:var(--primary);letter-spacing:-.02em;}
.hero__stat-label{font-size:12px;color:var(--ink-3);margin-top:4px;}

/* ===================== 横滑片库 ===================== */
.rail-shell{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;
  padding:4px 0 14px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 276px;scroll-snap-align:start;}
.rail-card .thumb{border-radius:16px;box-shadow:var(--sh-1);}
.rail-card:hover .thumb img{transform:scale(1.04);}
.rail-card__title{
  margin-top:14px;font-size:16px;font-weight:600;line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .22s;
}
.rail-card:hover .rail-card__title{color:var(--primary);}
.rail-card__meta{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--ink-3);}
.rail-btn{
  position:absolute;top:34%;width:44px;height:44px;
  border-radius:50%;background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--sh-2);color:var(--ink-2);font-size:22px;line-height:1;
  display:none;place-items:center;
  transition:background .2s,color .2s,box-shadow .2s;
  z-index:5;
}
.rail-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--sh-3);}
.rail-btn--prev{left:-18px;}
.rail-btn--next{right:-18px;}

/* ===================== 热播推荐（不对称版式） ===================== */
.hot-grid{align-items:stretch;}
.hot-main{
  display:block;position:relative;height:100%;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.hot-main:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.hot-main .thumb{border-radius:0;aspect-ratio:16/9;height:100%;}
.hot-main:hover .thumb img{transform:scale(1.04);}
.hot-main__info{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 26px 24px;color:#fff;
  background:linear-gradient(to top,rgba(8,20,40,.82),rgba(8,20,40,0));
}
.hot-main__info h3{font-size:21px;font-weight:700;line-height:1.4;margin-bottom:8px;}
.hot-main__info p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.84);}
.hot-side{display:flex;flex-direction:column;gap:20px;height:100%;}
.hot-mini{
  flex:1;display:flex;gap:16px;align-items:center;
  padding:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.hot-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.hot-mini .thumb{flex:0 0 132px;width:132px;aspect-ratio:4/3;border-radius:12px;}
.hot-mini:hover .thumb img{transform:scale(1.04);}
.hot-mini h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.hot-mini p{font-size:13px;color:var(--ink-3);line-height:1.6;}

/* ===================== 数据与信任条 ===================== */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:34px 0;
}
.stat{text-align:center;padding:0 18px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;}
.stat__num{
  font-size:32px;font-weight:800;color:var(--primary);
  letter-spacing:-.02em;line-height:1.2;
}
.stat__label{margin-top:8px;font-size:14px;color:var(--ink-3);}

/* ===================== 内容列表卡 ===================== */
.posts-grid{align-items:stretch;}
.post-cell{margin-bottom:24px;}
.post-card{
  height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.post-card__link{display:flex;flex-direction:column;height:100%;}
.post-card__link:hover{color:inherit;}
.post-card .thumb{border-radius:0;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-card__title{
  margin-top:12px;font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .22s;
}
.post-card:hover .post-card__title{color:var(--primary);}
.post-card__desc{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-top:auto;padding-top:16px;font-size:13px;color:var(--ink-3);
}
.dot{color:var(--line);}

/* ===================== 侧栏卡片 ===================== */
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:18px;line-height:1.4;}
.rank-list{display:flex;flex-direction:column;gap:14px;}
.rank-item{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.6;color:var(--ink-2);}
.rank-item:hover{color:var(--primary);}
.rank-item__no{
  flex:0 0 22px;height:22px;margin-top:3px;border-radius:6px;
  background:var(--primary-50);color:var(--primary);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.rank-item:first-child .rank-item__no{background:var(--spark);color:#fff;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.sub-form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;}
.sub-form__row{display:flex;gap:10px;}
.sub-form input{
  flex:1;min-width:0;height:48px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--bg);
  padding:0 14px;font-size:14px;
  transition:border-color .2s,box-shadow .2s;
}
.sub-form input::placeholder{color:var(--ink-3);}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-50);outline:none;}
.sub-form__hint{margin-top:10px;font-size:12px;line-height:1.7;color:var(--ink-3);}
.sub-form__hint.is-ok{color:#0B8F85;}

/* ===================== 空态 ===================== */
.empty-state{
  height:220px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:var(--bg-alt);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--ink-3);font-size:14px;text-align:center;padding:20px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--ink-3);fill:none;stroke-width:1.6;}

/* ===================== 分类入口卡（错落） ===================== */
.cat-grid{row-gap:24px;}
.cat-card{
  display:block;position:relative;height:100%;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);color:inherit;}
.cat-card:hover .thumb img{transform:scale(1.04);}
.cat-card--tall .thumb{border-radius:0;aspect-ratio:16/10;}
.cat-card__body{padding:24px;}
.cat-card__name{font-size:20px;font-weight:700;line-height:1.4;transition:color .22s;}
.cat-card:hover .cat-card__name{color:var(--primary);}
.cat-card__desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-2);}
.cat-card__count{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;font-size:13px;font-weight:600;color:var(--primary);
}
.cat-card--mini{display:flex;align-items:center;gap:16px;padding:16px;}
.cat-card--mini .thumb{flex:0 0 128px;width:128px;aspect-ratio:4/3;border-radius:12px;}
.cat-card--mini .cat-card__body{padding:0;min-width:0;}
.cat-card--mini .cat-card__name{font-size:17px;}
.cat-card--mini .cat-card__desc{margin-top:6px;font-size:13px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cat-card--wide{display:flex;align-items:center;gap:24px;padding:22px 26px;}
.cat-card--wide .thumb{flex:0 0 200px;width:200px;aspect-ratio:16/9;border-radius:14px;}
.cat-card--wide .cat-card__body{padding:0;flex:1;}
.cat-arrow{
  flex:0 0 42px;width:42px;height:42px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:18px;line-height:1;
  transition:background .22s,color .22s,transform .22s;
}
.cat-card:hover .cat-arrow{background:var(--primary);color:#fff;transform:translateX(3px);}

/* ===================== 行动条 ===================== */
.cta-band{
  position:relative;border-radius:24px;overflow:hidden;
  background:linear-gradient(135deg,#1E5BD6 0%,#0FB5A8 100%);
  color:#fff;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;box-shadow:var(--sh-2);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.92);max-width:600px;}
.cta-band__btns{display:flex;gap:14px;flex-wrap:wrap;}

/* ===================== 常见问题 ===================== */
.faq{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.faq details{border-top:1px solid var(--line);}
.faq details:first-child{border-top:0;}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;line-height:1.6;
  transition:color .22s,background .22s;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--primary);background:#FBFCFE;}
.faq summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:700;
  color:var(--primary);line-height:1;
  transition:transform .22s;
}
.faq details[open] summary::after{content:"–";}
.faq__body{
  padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
.faq__body p + p{margin-top:10px;}

/* ===================== 页脚 ===================== */
.site-footer{
  margin-top:var(--gap-sec);
  background:var(--surface);border-top:1px solid var(--line);
  padding:60px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{width:34px;height:34px;flex:0 0 34px;}
.footer-brand .brand__mark::before{left:7px;top:7px;width:10px;height:20px;}
.footer-brand .brand__mark::after{right:7px;top:7px;width:9px;height:9px;}
.footer-brand__name{font-size:16px;font-weight:800;line-height:1.3;}
.footer-brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink);}
.footer-col p{font-size:14px;line-height:1.9;color:var(--ink-2);}
.footer-col li{margin-bottom:8px;}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom span{line-height:1.7;}

/* ===================== 响应式 ===================== */
@media (max-width:1023px){
  :root{--gap-sec:72px;}
  .side-nav{display:none;}
  .content{margin-left:0;}
  body{padding-top:60px;}
  .mobile-bar{
    display:flex;position:fixed;top:0;left:0;right:0;height:60px;z-index:60;
    align-items:center;justify-content:space-between;
    padding:0 16px;background:rgba(255,255,255,.97);
    border-bottom:1px solid var(--line);
  }
  .mobile-bar .brand{padding:0;gap:8px;}
  .mobile-bar .brand__mark{width:32px;height:32px;flex:0 0 32px;}
  .mobile-bar .brand__mark::before{left:7px;top:7px;width:9px;height:18px;}
  .mobile-bar .brand__mark::after{right:7px;top:7px;width:8px;height:8px;}
  .mobile-bar .brand__name{font-size:16px;}
  .mobile-bar .brand__sub{font-size:10px;}
  .burger{
    width:44px;height:44px;border-radius:var(--r-md);
    display:grid;place-items:center;gap:4px;
    background:var(--bg-alt);color:var(--ink-2);
  }
  .burger span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;}
  .burger:hover{background:var(--primary-50);color:var(--primary);}
  .hero{height:440px;border-radius:20px;}
  .hero__inner{padding:0 32px 38px;}
  .hero__stat{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hot-side{margin-top:20px;}
}

@media (max-width:767px){
  .wrap{padding:0 20px;}
  .sec-head{margin-bottom:22px;}
  .cta-band{padding:36px 24px;border-radius:20px;}
  .stats{padding:0;}
  .stat{border-left:0;border-bottom:1px solid var(--line);padding:24px 12px;}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0;}
  .stats{grid-template-columns:1fr 1fr;}
}

@media (max-width:639px){
  :root{--gap-sec:56px;}
  .hero{height:340px;}
  .hero__inner{padding:0 20px 28px;}
  .hero__eyebrow{margin-bottom:12px;height:24px;font-size:11px;}
  .hero__sub{margin-top:10px;font-size:14px;}
  .hero__btns{flex-direction:column;gap:10px;margin-top:20px;}
  .hero__btns .btn{width:100%;}
  .rail-card{flex:0 0 78vw;}
  .rail-btn{display:none !important;}
  .hot-mini{flex-direction:row;}
  .hot-mini .thumb{flex:0 0 108px;width:108px;}
  .cat-card--wide{flex-direction:column;align-items:flex-start;gap:16px;}
  .cat-card--wide .thumb{width:100%;flex:none;aspect-ratio:16/9;}
  .cat-card--mini{flex-direction:row;}
  .cat-card--mini .thumb{flex:0 0 100px;width:100px;}
  .cat-arrow{display:none;}
  .cta-band__btns{width:100%;}
  .cta-band__btns .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sub-form__row{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .faq summary{padding:18px 18px;font-size:15px;}
  .faq__body{padding:0 18px 18px;}
}

@media (min-width:1024px){
  .rail-btn{display:grid;}
}

/* roulang page: article */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --radius:20px;
  --radius-sm:12px;
  --pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --nav-w:232px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* ============ 布局骨架 ============ */
.shell{display:flex;align-items:flex-start;min-height:100vh;}
.main-area{flex:1 1 auto;min-width:0;padding:0 0 0 0;}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  width:var(--nav-w);
  flex:0 0 var(--nav-w);
  position:sticky;
  top:0;
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:26px 18px 20px;
  overflow-y:auto;
}
.side-nav__brand{display:flex;align-items:center;gap:10px;padding:0 6px 22px;}
.brand__mark{
  position:relative;
  width:38px;height:38px;flex:0 0 38px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-700) 100%);
  display:inline-block;
  overflow:hidden;
}
.brand__mark::before{
  content:"";position:absolute;left:9px;top:9px;width:12px;height:12px;
  background:#fff;border-radius:3px;transform:rotate(12deg);
}
.brand__mark::after{
  content:"";position:absolute;right:8px;bottom:8px;width:13px;height:13px;
  background:var(--accent);border-radius:50%;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-size:18px;font-weight:800;color:var(--ink);}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em;}
.side-nav__label{
  font-size:12px;color:var(--ink-3);padding:4px 8px 8px;letter-spacing:.08em;
}
.side-nav__list{display:flex;flex-direction:column;gap:4px;}
.side-nav__list a{
  display:flex;align-items:center;
  min-height:44px;padding:10px 12px;
  border-radius:var(--radius-sm);
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav__list a:hover{background:var(--bg-alt);color:var(--primary);}
.side-nav__list a.is-active{
  background:var(--primary-50);
  color:var(--primary);
  font-weight:700;
  box-shadow:inset 3px 0 0 var(--primary);
}
.side-nav__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.side-nav__foot .btn{width:100%;justify-content:center;}
.side-nav__note{font-size:12px;color:var(--ink-3);margin-top:14px;line-height:1.6;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:var(--sh-2);}
.btn--primary:hover{background:var(--primary-700);transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn--ghost:hover{background:var(--primary-50);border-color:var(--primary);color:var(--primary);}
.btn--soft{background:var(--accent-50);color:#0A7A72;}
.btn--soft:hover{background:#d3f2ee;}
.btn--block{width:100%;}

/* ============ 移动顶部导航 ============ */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:60;
  height:60px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
}
.mobile-bar__brand{display:flex;align-items:center;gap:9px;}
.mobile-bar__brand .brand__mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
.mobile-bar__brand .brand__mark::before{left:7px;top:7px;width:10px;height:10px;}
.mobile-bar__brand .brand__mark::after{right:6px;bottom:6px;width:11px;height:11px;}
.mobile-bar__text{font-size:16px;font-weight:800;}
.mobile-bar__toggle{
  width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:17px;cursor:pointer;
}
.drawer{
  position:fixed;inset:60px 0 0 0;
  background:var(--surface);
  z-index:55;
  transform:translateY(-12px);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  padding:18px 16px 32px;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a{
  display:flex;align-items:center;
  min-height:52px;padding:0 14px;
  font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer a.is-active{color:var(--primary);font-weight:700;}
.drawer .btn{margin-top:22px;width:100%;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-3);
  padding:26px 0 0;
  white-space:nowrap;overflow:hidden;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;}

/* ============ 文章头部 ============ */
.article-head{padding:22px 0 8px;max-width:900px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 13px;
  border-radius:var(--pill);
  background:var(--primary-50);
  color:var(--primary);
  font-size:13px;font-weight:600;
  line-height:1;
}
.badge--accent{background:var(--accent-50);color:#0A7A72;}
.badge--spark{background:#FFECEC;color:#C8383D;}
.article-title{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;
  line-height:1.2;
  margin:18px 0 16px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:14px;color:var(--ink-3);
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-3);opacity:.6;}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:48px;
  align-items:start;
  padding:34px 0 0;
}
.article-body{min-width:0;}
.article-cover{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  margin-bottom:30px;
  aspect-ratio:16/9;
  background:var(--bg-alt);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* 富文本正文 */
.rich-text{max-width:760px;font-size:17.5px;line-height:1.9;color:var(--ink-2);}
.rich-text > * + *{margin-top:1.4em;}
.rich-text p{color:var(--ink-2);}
.rich-text h2{
  position:relative;
  font-size:26px;font-weight:700;line-height:1.35;
  color:var(--ink);
  margin-top:48px;margin-bottom:18px;
  padding-left:16px;
}
.rich-text h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:4px;background:var(--primary);
}
.rich-text h3{font-size:19px;font-weight:600;color:var(--ink);margin-top:34px;margin-bottom:12px;}
.rich-text a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.rich-text strong{color:var(--ink);font-weight:700;}
.rich-text img{border-radius:var(--radius-sm);box-shadow:var(--sh-1);width:100%;height:auto;}
.rich-text figure{margin:26px 0;}
.rich-text figcaption, .rich-text .caption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.rich-text blockquote{
  margin:26px 0;padding:16px 20px;
  background:var(--bg-alt);
  border-left:3px solid var(--accent);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-2);
}
.rich-text ul,.rich-text ol{padding-left:22px;margin:20px 0;}
.rich-text ul li{list-style:disc;margin:8px 0;}
.rich-text ol{list-style:none;counter-reset:rl;}
.rich-text ol li{counter-increment:rl;position:relative;padding-left:30px;margin:10px 0;}
.rich-text ol li::before{
  content:counter(rl);
  position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.rich-text table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;}
.rich-text th,.rich-text td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.rich-text th{background:var(--bg-alt);font-weight:600;color:var(--ink);}
.rich-text tbody tr:nth-child(even){background:#FAFBFE;}

/* 空态 */
.empty-state{
  min-height:220px;
  border:1px dashed var(--line);
  background:var(--bg-alt);
  border-radius:var(--radius);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:32px;
}
.empty-state i{font-size:26px;color:var(--ink-3);}
.empty-state p{color:var(--ink-2);font-size:15px;}
.empty-state a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px;}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:40px 0 0;padding-top:26px;border-top:1px solid var(--line);}
.tag-row__label{font-size:14px;color:var(--ink-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:var(--pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);
  transition:all .24s var(--ease);
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-50);}

/* 上一篇 下一篇 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px;}
.pager__card{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 20px;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.pager__card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#d3ddec;}
.pager__card i{color:var(--primary);font-size:15px;}
.pager__card strong{display:block;font-size:15.5px;color:var(--ink);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.pager__card span{font-size:13px;color:var(--ink-3);}
.pager__card--right{justify-content:flex-end;text-align:right;}

/* 相关推荐 */
.related{margin-top:56px;}
.related__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.related__head h2{font-size:24px;font-weight:700;}
.related__head a{font-size:14px;color:var(--primary);font-weight:600;}
.related__track{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.mini-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
  display:flex;flex-direction:column;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.mini-card__cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.mini-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.mini-card:hover .mini-card__cover img{transform:scale(1.04);}
.mini-card__body{padding:16px 18px 20px;}
.mini-card__body h3{font-size:16.5px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.mini-card:hover .mini-card__body h3{color:var(--primary);}
.mini-card__body p{font-size:13.5px;color:var(--ink-3);}

/* 侧栏 */
.article-side{position:sticky;top:24px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px solid var(--line);
  transition:color .24s var(--ease);
}
.side-list a:last-child{border-bottom:none;padding-bottom:0;}
.side-list a:hover .side-list__t{color:var(--primary);}
.side-list__idx{
  flex:0 0 24px;height:24px;border-radius:8px;
  background:var(--primary-50);color:var(--primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.side-list__t{font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.5;}
.side-list__d{font-size:12.5px;color:var(--ink-3);margin-top:4px;}
.side-navlinks{display:flex;flex-direction:column;gap:8px;}
.side-navlinks a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:0 14px;
  border-radius:var(--radius-sm);
  background:var(--bg-alt);
  font-size:14.5px;color:var(--ink-2);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.side-navlinks a:hover{background:var(--primary-50);color:var(--primary);}
.side-cta{
  background:linear-gradient(135deg,rgba(30,91,214,.94),rgba(15,181,168,.92));
  border-radius:var(--radius);
  padding:24px 22px;
  color:#fff;
  box-shadow:var(--sh-2);
}
.side-cta h3{color:#fff;font-size:18px;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.88);margin-bottom:16px;}
.side-cta .btn{background:#fff;color:var(--primary-700);width:100%;}
.side-cta .btn:hover{background:#f0f4ff;color:var(--primary-700);}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:88px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding:56px 0 40px;
}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col p{font-size:13.5px;color:var(--ink-2);line-height:1.85;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--ink-2);transition:color .22s var(--ease);}
.footer-col ul a:hover{color:var(--primary);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand__name{display:block;font-size:17px;font-weight:800;}
.footer-brand__sub{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.06em;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid var(--line);
  padding:20px 0 30px;
  font-size:13px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .article-layout{grid-template-columns:minmax(0,1fr) 312px;gap:38px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .mobile-bar{display:flex;}
  .main-area{width:100%;}
  .wrap{padding:0 20px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;padding-top:26px;}
  .article-side{position:static;}
  .rich-text{font-size:17px;max-width:100%;}
  .related__track{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px;}
}
@media (max-width:767px){
  .article-title{font-size:clamp(26px,7vw,34px);}
  .meta-row{gap:8px 14px;font-size:13px;}
  .rich-text{font-size:16.5px;line-height:1.85;}
  .rich-text h2{font-size:22px;margin-top:36px;}
  .rich-text h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .pager__card--right{justify-content:flex-start;text-align:left;flex-direction:row-reverse;}
  .related__track{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .side-card{padding:20px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .article-cover{border-radius:var(--radius-sm);}
  .btn{width:100%;}
  .tag-row{margin-top:30px;}
  .breadcrumb{font-size:13px;}
}

/* roulang page: category1 */
/* ================= 设计令牌 ================= */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --nav-w:232px;
  --gap:24px;
  --sec-y:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.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}

/* ================= 布局骨架 ================= */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
main{display:block;padding-bottom:8px}
section{position:relative}

/* ================= 左侧竖向导航 ================= */
.side-nav{
  flex:0 0 var(--nav-w);
  width:var(--nav-w);
  align-self:flex-start;
  position:sticky;
  top:0;
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  overflow-y:auto;
  z-index:40;
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:14px;transition:background .2s var(--ease)}
.brand:hover{background:var(--primary-50)}
.brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  position:relative;display:block;
}
.brand__mark::before{content:"";position:absolute;left:9px;right:9px;top:9px;bottom:15px;background:#fff;border-radius:3px}
.brand__mark::after{content:"";position:absolute;left:9px;right:9px;bottom:9px;height:4px;background:rgba(255,255,255,.92);border-radius:2px}
.brand__text{display:block;min-width:0}
.brand__name{display:block;font-size:18px;font-weight:800;line-height:1.2;color:var(--ink);letter-spacing:0}
.brand__sub{display:block;font-size:11px;line-height:1.5;color:var(--ink-3);letter-spacing:.06em}

.side-nav__list{display:flex;flex-direction:column;gap:4px;margin-top:26px}
.side-nav__list a{
  position:relative;display:flex;align-items:center;
  min-height:46px;padding:10px 14px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav__list a:hover{background:var(--primary-50);color:var(--primary-700)}
.side-nav__list a.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:700}
.side-nav__list a.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--primary);
}
.side-nav__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.side-nav__note{font-size:12px;line-height:1.6;color:var(--ink-3)}

/* ================= 移动端顶部栏 + 抽屉 ================= */
.topbar{display:none}
.drawer{display:none}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(30,91,214,.24)}
.btn--primary:hover{background:var(--primary-700);box-shadow:0 10px 26px rgba(18,62,143,.28)}
.btn--outline{background:var(--surface);color:var(--primary);border-color:var(--line);box-shadow:var(--sh-1)}
.btn--outline:hover{background:var(--primary-50);border-color:var(--primary-50);color:var(--primary-700)}
.btn--light{background:#fff;color:var(--primary-700)}
.btn--light:hover{background:#EAF0FE}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.62)}
.btn--outline-light:hover{background:rgba(255,255,255,.16)}
.btn--block{width:100%}
.btn--sm{height:40px;padding:0 18px;font-size:14px}

/* ================= 胶囊标签 ================= */
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;
  border-radius:var(--radius-pill);background:var(--bg-alt);color:var(--ink-2);
  font-size:13px;white-space:nowrap;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--primary-50);color:var(--primary-700)}
.chip.is-on{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip.is-on:hover{background:var(--primary-700)}

/* ================= 面包屑 ================= */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  padding-top:28px;font-size:14px;line-height:1.6;color:var(--ink-3);
}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#C7D2E2}
.crumbs .is-current{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ================= 页面头部 ================= */
.page-head{
  position:relative;margin-top:20px;padding:38px 40px 40px;
  border-radius:var(--radius-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.90) 48%,rgba(255,255,255,.62) 100%),
    url(/assets/images/backpic/back-2.png) center right / cover no-repeat;
}
.page-head > *{position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;
  border-radius:var(--radius-pill);background:var(--accent-50);color:#0A7F76;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-head h1{
  margin-top:18px;max-width:820px;
  font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.2;letter-spacing:-0.005em;
}
.page-head .lede{margin-top:14px;max-width:640px;font-size:16px;color:var(--ink-2);line-height:1.8}
.page-head .head-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* ================= 数据条 ================= */
.stats{
  margin-top:26px;display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 6px;box-shadow:var(--sh-1);
}
.stats__item{text-align:center;padding:0 14px;border-right:1px solid var(--line)}
.stats__item:last-child{border-right:0}
.stats__num{font-size:32px;font-weight:800;line-height:1.2;color:var(--primary)}
.stats__label{margin-top:6px;font-size:14px;color:var(--ink-3)}

/* ================= 筛选 + 列表 ================= */
.section-list{margin-top:44px}
.chip-scroller{display:none}

.filter-col{position:sticky;top:24px}
.filter-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 18px;box-shadow:var(--sh-1);margin-bottom:16px;
}
.filter-card:last-child{margin-bottom:0}
.filter-card h3{font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.01em}
.filter-options{display:flex;flex-wrap:wrap;gap:8px}
.filter-hint{margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.7}

.list-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.list-head h2{font-size:22px;font-weight:700;line-height:1.35}
.list-head .count{font-size:14px;color:var(--ink-3)}

.list-grid > .cell{margin-bottom:24px}

/* ================= 内容卡片 ================= */
.entry-card{
  height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.entry-card__link{display:flex;flex-direction:column;height:100%}
.entry-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.entry-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.entry-card:hover .entry-card__media img{transform:scale(1.04)}
.entry-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.entry-card__title{
  font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.entry-card:hover .entry-card__title{color:var(--primary)}
.entry-card__desc{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-card__meta{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;line-height:1.6;color:var(--ink-3);
}
.entry-card__meta .dot{width:3px;height:3px;border-radius:50%;background:#C7D2E2}

.badge{
  position:absolute;left:12px;top:12px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:10px;background:rgba(255,255,255,.95);color:var(--primary-700);
  font-size:12px;font-weight:700;letter-spacing:.02em;box-shadow:var(--sh-1);
}
.badge--accent{background:var(--accent);color:#fff}
.badge--spark{background:var(--spark);color:#fff}

/* ================= 其他栏目 ================= */
.related{margin-top:72px}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.related-head h2{font-size:26px;font-weight:700;line-height:1.3}
.related-head p{font-size:14px;color:var(--ink-3)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
  display:flex;flex-direction:column;gap:8px;padding:26px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--primary-50)}
.related-card__name{font-size:18px;font-weight:700;color:var(--ink)}
.related-card:hover .related-card__name{color:var(--primary)}
.related-card__desc{font-size:14px;line-height:1.7;color:var(--ink-2)}
.related-card__arrow{margin-top:6px;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.related-card__arrow::after{content:"→";transition:transform .24s var(--ease)}
.related-card:hover .related-card__arrow::after{transform:translateX(4px)}

/* ================= CTA ================= */
.cta{
  margin-top:64px;border-radius:24px;padding:46px 44px;
  background:linear-gradient(135deg,#1E5BD6 0%,#0FB5A8 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;box-shadow:0 20px 44px rgba(18,62,143,.20);
}
.cta__text{max-width:620px}
.cta__text h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3}
.cta__text p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ================= 页脚 ================= */
.site-footer{margin-top:84px;background:var(--surface);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand__name{display:block;font-size:17px;font-weight:800;line-height:1.2;color:var(--ink)}
.footer-brand__sub{display:block;font-size:11px;line-height:1.5;color:var(--ink-3);letter-spacing:.06em}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:8px}
.footer-col p:last-child{margin-bottom:0}
.footer-bottom{
  margin-top:46px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}

/* ================= 响应式 ================= */
@media (max-width:1439px){
  .wrap{max-width:1200px}
}
@media (max-width:1023px){
  .layout{display:block}
  .side-nav{display:none}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:50;height:60px;padding:0 18px;
    background:var(--surface);border-bottom:1px solid var(--line);
  }
  .topbar .brand{padding:0}
  .topbar__toggle{
    width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
    background:var(--bg-alt);transition:background .2s var(--ease);
  }
  .topbar__toggle:hover{background:var(--primary-50)}
  .topbar__toggle .bars{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
  .topbar__toggle .bars::before,
  .topbar__toggle .bars::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
  .topbar__toggle .bars::before{top:-6px}
  .topbar__toggle .bars::after{top:6px}

  .drawer{
    display:block;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:60;
    background:var(--surface);padding:14px 18px 32px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .drawer__link{
    display:flex;align-items:center;min-height:52px;padding:0 14px;
    border-radius:var(--radius-sm);font-size:16px;color:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .drawer__link:last-of-type{border-bottom:0}
  .drawer__link.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:700}
  .drawer__foot{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
  .drawer__foot p{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6}

  .wrap{padding:0 20px}
  .page-head{padding:30px 24px 32px;margin-top:16px}
  .stats{padding:10px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .section-list{margin-top:32px}
  .related{margin-top:56px}
  .related-grid{grid-template-columns:1fr}
  .cta{margin-top:48px;padding:34px 24px;border-radius:20px;flex-direction:column;align-items:flex-start}
  .cta__actions{width:100%}
  .cta__actions .btn{flex:1 1 auto}
  .site-footer{margin-top:64px;padding-top:44px}
}
@media (max-width:639px){
  .wrap{padding:0 18px}
  .topbar{padding:0 16px}
  .page-head{padding:26px 20px 28px;border-radius:18px}
  .page-head .head-actions .btn{flex:1 1 auto}
  .stats{grid-template-columns:repeat(2,1fr);padding:6px 0}
  .stats__item{border-right:0;padding:16px 10px}
  .stats__item:nth-child(odd){border-right:1px solid var(--line)}
  .stats__item:nth-child(1),
  .stats__item:nth-child(2){border-bottom:1px solid var(--line)}
  .filter-col{display:none}
  .chip-scroller{
    display:flex;gap:8px;overflow-x:auto;margin:0 -18px 18px;padding:2px 18px 10px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .chip-scroller::-webkit-scrollbar{display:none}
  .chip-scroller .chip{flex:0 0 auto;height:40px;padding:0 18px;font-size:14px}
  .entry-card__body{padding:18px 18px 20px}
  .entry-card__title{font-size:17px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .crumbs{padding-top:20px}
}

/* roulang page: category2 */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --nav-w:232px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
}
h1,h2,h3,h4,p,ul,ol,figure,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.layout{display:flex;min-height:100vh;align-items:stretch}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:sticky;top:0;height:100vh;flex:0 0 var(--nav-w);width:var(--nav-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:26px;padding:26px 18px 22px;overflow-y:auto;
}
.side-nav__brand{display:flex;align-items:center;gap:11px;padding:0 6px}
.brand__mark{
  position:relative;flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary) 58%,var(--accent) 58%,var(--accent) 100%);
}
.brand__mark::before{content:"";position:absolute;left:10px;top:9px;width:8px;height:20px;border-radius:3px;background:#fff}
.brand__mark::after{content:"";position:absolute;right:10px;top:9px;width:8px;height:8px;border-radius:3px;background:#fff;box-shadow:0 12px 0 0 rgba(255,255,255,.72)}
.brand__text{min-width:0}
.brand__name{display:block;font-size:18px;font-weight:800;line-height:1.15;color:var(--ink);letter-spacing:.01em}
.brand__sub{display:block;font-size:11px;line-height:1.4;color:var(--ink-3);letter-spacing:.08em}
.side-nav__list{display:flex;flex-direction:column;gap:6px}
.side-nav__list a{
  position:relative;display:flex;align-items:center;min-height:46px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;color:var(--ink-2);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav__list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--primary);
  transition:height .24s var(--ease);
}
.side-nav__list a:hover{background:var(--bg-alt);color:var(--ink)}
.side-nav__list a.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:600}
.side-nav__list a.is-active::before{height:20px}
.side-nav__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 6px}
.side-note{font-size:12px;line-height:1.65;color:var(--ink-3)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(30,91,214,.22)}
.btn--primary:hover{background:var(--primary-700);color:#fff}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink-2)}
.btn--ghost:hover{background:var(--primary-50);color:var(--primary-700);border-color:transparent}
.btn--outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn--outline:hover{background:var(--primary-50)}
.btn--light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.55);color:#fff}
.btn--light:hover{background:rgba(255,255,255,.26);color:#fff}
.btn--white{background:#fff;color:var(--primary-700)}
.btn--white:hover{background:#EAF0FE}
.btn--block{width:100%}

/* ============ 主体与容器 ============ */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:96px 0 0}
.section--tight{padding-top:72px}
.section:last-of-type{padding-bottom:0}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{display:none}
.drawer{display:none}
.hamburger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 面包屑 ============ */
.crumbs-row{padding-top:28px}
.crumbs{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);
  white-space:nowrap;overflow:hidden;
}
.crumbs a:hover{color:var(--primary)}
.crumbs .is-now{color:var(--ink-2)}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;margin-top:18px;border-radius:24px;overflow:hidden;
  min-height:390px;display:flex;align-items:flex-end;
  background:#0E1A2B url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  box-shadow:var(--sh-2);
}
.page-hero::after{content:"";position:absolute;inset:0;background:rgba(8,20,40,.64)}
.page-hero__inner{position:relative;z-index:2;padding:52px 46px;max-width:790px;color:#fff}
.page-hero h1{
  font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.2;
  letter-spacing:-.01em;color:#fff;
}
.page-hero__lead{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.88);max-width:600px}
.page-hero__acts{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.page-hero__tags{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.hero-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);
  font-size:13px;color:#fff;
}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.sec-head h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--ink)}
.sec-head__sub{margin-top:8px;font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.sec-head__link{font-size:14px;font-weight:600;color:var(--primary)}
.sec-head__link:hover{color:var(--primary-700)}

/* ============ 标签 chips ============ */
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);font-size:14px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.is-on{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(30,91,214,.2)}

/* ============ 图墙网格 ============ */
.wall-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px}
.wall-card{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.wall-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D3DDF0}
.wall-card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.wall-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.wall-card:hover .wall-card__media img{transform:scale(1.04)}
.wall-card__bar{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px 16px;
  background:rgba(8,20,40,.82);color:#fff;
  transition:transform .28s var(--ease);
}
.wall-card__tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;color:#fff;background:rgba(255,255,255,.18);
}
.wall-card__tag--new{background:var(--accent)}
.wall-card__tag--fix{background:var(--spark)}
.wall-card__title{
  margin-top:9px;font-size:16.5px;font-weight:600;line-height:1.45;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.wall-card__meta{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.74)}
.wall-card.is-hidden{display:none}
.wall-more{display:flex;justify-content:center;margin-top:36px}
.wall-count{margin-top:18px;font-size:13.5px;color:var(--ink-3);text-align:center}

@media (hover:hover) and (pointer:fine){
  .wall-card__bar{transform:translateY(6px)}
  .wall-card:hover .wall-card__bar{transform:translateY(0)}
}

/* ============ 数据条 ============ */
.strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 10px;box-shadow:var(--sh-1);
}
.strip__item{padding:0 18px;text-align:center;border-left:1px solid var(--line)}
.strip__item:first-child{border-left:0}
.strip__num{font-size:32px;font-weight:800;line-height:1.2;color:var(--primary);letter-spacing:-.01em}
.strip__label{margin-top:8px;font-size:14px;line-height:1.6;color:var(--ink-3)}

/* ============ 图文分栏 ============ */
.editorial{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.editorial__media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);aspect-ratio:16/11;background:var(--bg-alt);
}
.editorial__media img{width:100%;height:100%;object-fit:cover}
.editorial h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;line-height:1.3}
.editorial__lead{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--ink-2)}
.point-list{margin-top:22px}
.point-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.point-list li:last-child{border-bottom:0;padding-bottom:0}
.point-list__num{
  flex:0 0 34px;width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--primary-50);color:var(--primary-700);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.point-list h3{font-size:17px;font-weight:600;line-height:1.5}
.point-list p{margin-top:5px;font-size:14.5px;line-height:1.7;color:var(--ink-2)}

/* ============ CTA ============ */
.cta{
  background:linear-gradient(135deg,#1E5BD6 0%,#0FB5A8 100%);
  border-radius:24px;padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(30,91,214,.2);
}
.cta__text{max-width:600px}
.cta h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.32;color:#fff}
.cta p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta__acts{display:flex;gap:12px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.faq__item + .faq__item{border-top:1px solid var(--line)}
.faq__item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";flex:0 0 auto;font-size:20px;font-weight:400;line-height:1;color:var(--primary)}
.faq__item[open] summary::after{content:"−"}
.faq__item summary:hover{background:var(--bg-alt)}
.faq__a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:34px;padding:58px 0 38px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand__name{display:block;font-size:16px;font-weight:800;line-height:1.2;color:var(--ink)}
.footer-brand__sub{display:block;font-size:11px;line-height:1.4;color:var(--ink-3);letter-spacing:.08em}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14px;line-height:1.85;color:var(--ink-2)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 34px;font-size:13px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .side-nav{display:none}
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
    align-items:center;justify-content:space-between;padding:0 16px;
    background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  }
  .topbar .brand__mark{flex:0 0 34px;width:34px;height:34px;border-radius:10px}
  .topbar .brand__name{font-size:16px}
  .topbar .brand__sub{font-size:10px;letter-spacing:.06em}
  .drawer{
    display:block;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:75;
    background:#fff;padding:16px 20px 28px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s var(--ease);
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer a{
    display:flex;align-items:center;min-height:52px;padding:0 12px;border-radius:var(--r-sm);
    font-size:16px;color:var(--ink-2);
  }
  .drawer a.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:600}
  .drawer__cta{margin-top:18px}
  .main{padding-top:60px}
  .wrap{padding:0 20px}
  .section{padding-top:72px}
  .page-hero{min-height:340px}
  .page-hero__inner{padding:38px 28px}
  .wall-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .editorial{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px}
  .site-footer{margin-top:72px}
}
@media (max-width:767px){
  .strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:24px 12px}
  .strip__item{border-left:0;border-top:1px solid var(--line);margin-top:20px;padding-top:20px}
  .strip__item:nth-child(1),.strip__item:nth-child(2){border-top:0;margin-top:0;padding-top:0}
  .strip__num{font-size:28px}
  .cta{padding:38px 26px;border-radius:20px}
}
@media (max-width:559px){
  .wrap{padding:0 16px}
  .section{padding-top:56px}
  .page-hero{min-height:320px;border-radius:18px}
  .page-hero__inner{padding:30px 20px}
  .page-hero__acts{flex-direction:column;align-items:stretch}
  .page-hero__acts .btn{width:100%}
  .wall-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .sec-head{margin-bottom:20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .site-footer{margin-top:56px}
  .faq__item summary{padding:18px 18px;font-size:15.5px}
  .faq__a{padding:0 18px 20px}
  .crumbs{font-size:13px}
}

/* roulang page: category3 */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --sp-xl:96px;
  --sp-lg:64px;
  --sp-md:32px;
  --sp-sm:16px;
  --nav-w:232px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Inter",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease)}
a:hover{color:var(--primary-700)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{left:0;color:#fff}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px;width:100%}
.main-area{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
body.no-scroll{overflow:hidden}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand__mark{
  position:relative;flex:none;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 6px 16px rgba(30,91,214,.28);
}
.brand__mark::before{
  content:"";position:absolute;inset:9px;border:2px solid rgba(255,255,255,.9);
  border-radius:4px;transform:rotate(45deg);
}
.brand__mark::after{
  content:"";position:absolute;width:7px;height:7px;border-radius:2px;background:#fff;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-size:18px;font-weight:800;color:var(--ink)}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:24px;
  padding:28px 20px 24px;overflow-y:auto;z-index:80;
}
.side-nav__list{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.side-nav__list a{
  display:flex;align-items:center;
  min-height:46px;padding:10px 14px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:15px;font-weight:500;position:relative;
  transition:background-color .24s var(--ease),color .24s var(--ease);
}
.side-nav__list a:hover{background:var(--bg-alt);color:var(--ink)}
.side-nav__list a.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:700}
.side-nav__list a.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.side-nav__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.side-nav__note{font-size:12.5px;color:var(--ink-3);line-height:1.6}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:90;
  background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 18px;
  backdrop-filter:saturate(160%) blur(6px);
}
.brand--compact .brand__mark{width:32px;height:32px;border-radius:9px}
.brand--compact .brand__mark::before{inset:7px}
.brand--compact .brand__mark::after{width:6px;height:6px}
.brand--compact .brand__name{font-size:16px}
.brand--compact .brand__sub{font-size:10px}
.topbar__toggle{
  width:46px;height:46px;border:0;background:transparent;border-radius:var(--r-sm);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.topbar__toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.topbar__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.topbar__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.topbar__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  position:fixed;top:60px;left:0;right:0;z-index:88;
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:12px 18px 24px;box-shadow:var(--sh-2);
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  max-height:calc(100vh - 60px);overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer .side-nav__list a{min-height:52px;font-size:15.5px}
.drawer__cta{margin-top:16px}
.drawer-mask{
  position:fixed;inset:60px 0 0 0;background:rgba(14,26,43,.32);z-index:86;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(18,62,143,.24)}
.btn--outline{background:var(--surface);color:var(--primary);border-color:var(--line)}
.btn--outline:hover{background:var(--primary-50);color:var(--primary-700);border-color:#C9D9F8}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.62)}
.btn--ghost:hover{background:rgba(255,255,255,.26);color:#fff}
.btn--block{width:100%}
.btn--sm{min-height:42px;padding:0 20px;font-size:14px}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:460px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(to top,rgba(8,20,40,.80),rgba(8,20,40,.34)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-radius:0 0 28px 28px;
  overflow:hidden;
}
.page-hero__inner{padding:150px 0 54px;width:100%}
.hero__grid{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;align-items:end}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:#D7E3FA;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.hero__eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero__title{
  font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.2;
  color:#fff;letter-spacing:-.01em;margin-bottom:16px;
}
.hero__desc{max-width:620px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.86)}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__card{
  background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-2);
}
.hero__card h2{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px}
.hero-card__list{display:flex;flex-direction:column;gap:10px}
.hero-card__list li{display:flex;gap:10px;font-size:13.5px;color:var(--ink-2);line-height:1.65}
.hero-card__list li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:8px;
}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-3);padding:24px 0 0;
}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:#C3CDDB}
.crumbs .current{color:var(--ink-2)}

/* ============ 通用板块 ============ */
.section{padding-top:var(--sp-xl)}
.section--tight{padding-top:var(--sp-lg)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}
.section__title{font-size:clamp(23px,2.4vw,31px);font-weight:700;line-height:1.3}
.section__desc{margin-top:12px;max-width:720px;font-size:15.5px;color:var(--ink-2);line-height:1.8}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;
  color:var(--primary);background:var(--primary-50);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.lead{
  font-size:17.5px;line-height:1.9;color:var(--ink-2);
  border-left:4px solid var(--primary);background:var(--primary-50);
  padding:18px 22px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin-top:24px;
}

/* ============ 分类 chips ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;min-height:40px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);font-weight:500;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.chip:hover{background:var(--primary-50);color:var(--primary-700);border-color:#C9D9F8;transform:translateY(-2px)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.chip.is-active:hover{background:var(--primary-700);color:#fff}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding:8px 0 4px}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item{position:relative;width:calc(50% - 48px);margin-bottom:36px}
.tl-item:nth-child(odd){margin-right:auto}
.tl-item:nth-child(even){margin-left:auto}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;top:42px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 5px var(--primary-50);z-index:2;
}
.tl-item:nth-child(odd)::before{right:-54px}
.tl-item:nth-child(even)::before{left:-54px}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 28px;display:flex;gap:22px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D6E1F5}
.tl-num{
  flex:none;font-size:48px;font-weight:800;line-height:1;letter-spacing:-.02em;
  -webkit-text-stroke:1.6px var(--primary);color:transparent;
}
@supports not (-webkit-text-stroke:1px #000){.tl-num{color:var(--primary)}}
.tl-body h3{font-size:19px;font-weight:600;margin-bottom:10px;line-height:1.5}
.tl-body p{font-size:15.5px;color:var(--ink-2);line-height:1.85}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.flag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:var(--primary-50);color:var(--primary-700);
}
.flag--accent{background:var(--accent-50);color:#0A7F76}
.flag--spark{background:#FEECEC;color:#C2373C}
.flag--muted{background:var(--bg-alt);color:var(--ink-2)}

/* ============ 图文分栏 ============ */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
}
.split__media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--bg-alt)}
.split__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split__body h2{font-size:clamp(23px,2.4vw,31px);line-height:1.3}
.split__body p{margin-top:16px;font-size:15.5px;color:var(--ink-2);line-height:1.9}
.feat-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.feat-list li{
  display:flex;gap:14px;padding:16px 18px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.feat-list li:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.feat-list strong{display:block;font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:4px}
.feat-list span.txt{font-size:14px;color:var(--ink-2);line-height:1.75}
.feat-list .dot{
  flex:none;width:28px;height:28px;border-radius:9px;background:var(--accent-50);
  color:#0A7F76;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}

/* ============ 编号要点列表 ============ */
.numlist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.numlist li{
  display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 26px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.numlist li:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6E1F5}
.numlist__idx{
  flex:none;width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--primary-50);color:var(--primary-700);
  display:flex;align-items:center;justify-content:center;font-size:14.5px;font-weight:800;
}
.numlist h3{font-size:17px;font-weight:600;margin-bottom:8px}
.numlist p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ============ FAQ ============ */
.faq{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:background-color .24s var(--ease);
}
.faq-q:hover{background:var(--bg-alt)}
.faq-icon{
  position:relative;flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--primary-50);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform .26s var(--ease),opacity .26s var(--ease)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{background:var(--primary-50);color:var(--primary-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,rgba(30,91,214,.94),rgba(15,181,168,.9));
  border-radius:24px;padding:46px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:0 18px 44px rgba(18,62,143,.18);
}
.cta-band h2{font-size:clamp(22px,2.3vw,29px);color:#fff;line-height:1.35}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.9);max-width:620px;line-height:1.8}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;flex:none}
.cta-band .btn--primary{background:#fff;color:var(--primary-700)}
.cta-band .btn--primary:hover{background:#F2F6FF;color:var(--primary-700)}
.cta-band .btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.cta-band .btn--outline:hover{background:rgba(255,255,255,.18);color:#fff}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--sp-xl);background:var(--ink);color:rgba(255,255,255,.74)}
.site-footer .wrap{padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:8px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-col ul a:hover{color:#fff}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand__name{display:block;font-size:17px;font-weight:800;color:#fff;line-height:1.2}
.footer-brand__sub{display:block;font-size:11px;letter-spacing:.06em;color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero__grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
  .split{gap:36px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .topbar{display:flex}
  .main-area{margin-left:0;padding-top:60px}
  .page-hero{border-radius:0 0 24px 24px;min-height:420px}
  .page-hero__inner{padding:60px 0 44px}
  .hero__grid{grid-template-columns:1fr;gap:26px;align-items:start}
  .hero__card{max-width:520px}
  .section{padding-top:72px}
  .timeline::before{left:14px;transform:none}
  .tl-item{width:100%;margin:0 0 28px !important;padding-left:44px}
  .tl-item::before{left:8px !important;right:auto !important;top:34px}
  .tl-card{flex-direction:row;padding:22px}
  .tl-num{font-size:38px}
  .split{grid-template-columns:1fr;gap:30px}
  .numlist{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer .wrap{padding-top:52px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .section{padding-top:56px}
  .section__head{flex-direction:column;align-items:flex-start;gap:16px}
  .page-hero{min-height:380px}
  .page-hero__inner{padding:44px 0 38px}
  .hero__desc{font-size:15.5px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .tl-card{flex-direction:column;gap:14px}
  .tl-num{font-size:34px}
  .lead{font-size:16px;padding:16px 18px}
  .cta-band{border-radius:20px;padding:32px 24px;gap:26px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{padding:18px 20px;font-size:15px}
  .faq-a p{padding:0 20px 20px}
  .numlist li{padding:20px}
}

/* roulang page: category4 */
:root{
  --bg:#F5F7FB;
  --bg-alt:#EDF1F8;
  --surface:#FFFFFF;
  --line:#E2E8F2;
  --primary:#1E5BD6;
  --primary-700:#123E8F;
  --primary-50:#EAF0FE;
  --accent:#0FB5A8;
  --accent-50:#E4F7F5;
  --spark:#F2555A;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --ink-3:#8A99AE;
  --r-lg:20px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,26,43,.05);
  --sh-2:0 6px 20px rgba(14,26,43,.07);
  --sh-3:0 18px 44px rgba(14,26,43,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section:96px;
  --nav-w:232px;
}
*,*::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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary-50);color:var(--primary-700)}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

/* ============ 布局骨架 ============ */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  width:var(--nav-w);
  flex:0 0 var(--nav-w);
  position:sticky;
  top:0;
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  z-index:40;
}
.brand{display:flex;align-items:center;gap:11px;padding:2px 4px 0}
.brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  position:relative;box-shadow:0 6px 14px rgba(30,91,214,.24);
}
.brand__mark::after{
  content:"";position:absolute;inset:9px;border:2px solid rgba(255,255,255,.92);
  border-radius:4px;transform:rotate(45deg);
}
.brand__name{display:block;font-size:18px;font-weight:800;letter-spacing:-0.01em;line-height:1.1;color:var(--ink)}
.brand__sub{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.08em;line-height:1.4;margin-top:2px}

.side-nav__list{display:flex;flex-direction:column;gap:4px;margin:24px 0 0}
.side-nav__list a{
  position:relative;display:block;padding:11px 12px 11px 16px;border-radius:var(--r-sm);
  font-size:15px;color:var(--ink-2);transition:background .22s var(--ease),color .22s var(--ease);
}
.side-nav__list a:hover{background:var(--primary-50);color:var(--primary-700)}
.side-nav__list a.is-active{background:var(--primary-50);color:var(--primary-700);font-weight:600}
.side-nav__list a.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--primary);
}
.side-nav__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.side-note{font-size:12.5px;line-height:1.7;color:var(--ink-3);margin-top:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,91,214,.22)}
.btn--primary:hover{background:var(--primary-700);box-shadow:0 10px 24px rgba(18,62,143,.26);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--primary-700);border-color:rgba(30,91,214,.35)}
.btn--ghost:hover{background:var(--primary-50)}
.btn--light{background:rgba(255,255,255,.92);color:var(--primary-700)}
.btn--light:hover{background:#fff}
.btn--block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:60;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 18px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);
}
.brand--sm .brand__name{font-size:16px}
.brand--sm .brand__mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.brand--sm .brand__mark::after{inset:7px;border-radius:3px}
.brand--sm .brand__sub{font-size:10px}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.22s var(--ease)}
body.nav-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:70;background:var(--surface);
  padding:22px 22px 28px;display:flex;flex-direction:column;
  transform:translateY(-101%);transition:transform .32s var(--ease);overflow-y:auto;
}
body.nav-open .drawer{transform:translateY(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer__close{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;font-size:18px;color:var(--ink-2)}
.drawer .side-nav__list{margin-top:14px}
.drawer .side-nav__list a{padding:14px 14px;font-size:16px;line-height:1.4;min-height:52px;display:flex;align-items:center;border-radius:12px}
.drawer__foot{margin-top:auto;padding-top:22px}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:nowrap;overflow:hidden;white-space:nowrap}
.crumb a{color:var(--ink-3);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:var(--line)}
.crumb .current{color:var(--ink-2)}

/* ============ 页面头部 ============ */
.page-head{padding:34px 0 0}
.page-head__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.page-head__card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 34px 32px;box-shadow:var(--sh-1);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--accent-50);color:#0A7C73;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  padding:6px 13px;border-radius:var(--r-pill);margin-bottom:16px;
}
.eyebrow i{font-size:11px}
h1{
  font-size:clamp(28px,4.2vw,42px);font-weight:800;line-height:1.2;
  letter-spacing:-0.01em;color:var(--ink);margin-bottom:16px;
}
.lede{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:640px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--primary-700);
  background:var(--primary-50);border-radius:var(--r-pill);padding:6px 13px;
}
.badge--accent{color:#0A7C73;background:var(--accent-50)}
.badge--outline{color:var(--ink-2);background:#fff;border:1px solid var(--line)}
.page-head__media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);position:relative;background:var(--bg-alt);
}
.page-head__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.page-head__media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 22px 16px;color:#fff;font-size:13.5px;line-height:1.6;
  background:linear-gradient(180deg,rgba(8,20,40,0) 0%,rgba(8,20,40,.72) 100%);
}

/* ============ 通用板块 ============ */
.section{padding:var(--section) 0 0}
.section--tight{padding-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-0.005em}
.section-head p{font-size:14.5px;color:var(--ink-3);margin-top:9px;max-width:640px}
.link-more{font-size:14.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more i{font-size:12px;transition:transform .22s var(--ease)}
.link-more:hover i{transform:translateX(3px)}

/* ============ 答疑 + 表单 ============ */
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.faq-card{padding:10px 28px}
.faq-card__head{padding:20px 0 6px;border-bottom:1px solid var(--line);margin-bottom:4px}
.faq-card__head h3{font-size:19px;font-weight:700}
.faq-card__head p{font-size:13.5px;color:var(--ink-3);margin-top:6px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:19px 2px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:"+";flex:0 0 auto;color:var(--primary);font-size:20px;font-weight:600;line-height:1.3;
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{color:var(--primary-700)}
.faq-body{padding:0 40px 20px 2px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* 表单卡 */
.form-card{padding:30px 28px;position:sticky;top:32px}
.form-card__head h3{font-size:20px;font-weight:700}
.form-card__head p{font-size:13.5px;color:var(--ink-3);margin-top:8px;line-height:1.7}
.form-grid{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field .req{color:var(--spark);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  font-size:15px;color:var(--ink);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:42px}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-50)}
.field .hint{font-size:12.5px;color:var(--ink-3);margin-top:7px;line-height:1.6}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--spark)}
.form-note{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin-top:14px}
.form-feedback{margin-top:12px;font-size:13px;color:var(--spark);min-height:18px}

/* ============ 处理流程时间轴 ============ */
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:26px;top:12px;bottom:12px;width:2px;background:var(--line)}
.step{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:22px;padding:0 0 28px}
.step:last-child{padding-bottom:0}
.step__num{
  position:relative;z-index:1;width:54px;height:54px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;
  box-shadow:0 4px 14px rgba(30,91,214,.12);
}
.step__body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 24px;box-shadow:var(--sh-1);transition:box-shadow .28s var(--ease),transform .28s var(--ease)}
.step:hover .step__body{box-shadow:var(--sh-2);transform:translateY(-3px)}
.step__body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step__body p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ============ 图文入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.entry{
  display:grid;grid-template-columns:132px minmax(0,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .28s var(--ease),transform .28s var(--ease);
}
.entry:hover{box-shadow:var(--sh-3);transform:translateY(-4px)}
.entry__media{overflow:hidden;background:var(--bg-alt)}
.entry__media img{width:100%;height:100%;min-height:150px;object-fit:cover;transition:transform .28s var(--ease)}
.entry:hover .entry__media img{transform:scale(1.04)}
.entry__body{padding:22px 24px;display:flex;flex-direction:column;gap:8px}
.entry__body h3{font-size:17.5px;font-weight:700;transition:color .22s var(--ease)}
.entry:hover .entry__body h3{color:var(--primary)}
.entry__body p{font-size:14px;color:var(--ink-2);line-height:1.75}
.entry__meta{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}

/* ============ CTA ============ */
.cta-band{
  margin-top:var(--section);
  border-radius:24px;padding:44px 46px;
  background:linear-gradient(135deg,rgba(30,91,214,.94) 0%,rgba(15,181,168,.9) 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 20px 48px rgba(18,62,143,.2);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,28px)}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);max-width:560px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 相关分类入口 ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 17px;border-radius:var(--r-pill);background:var(--surface);
  border:1px solid var(--line);font-size:14px;color:var(--ink-2);
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.chip:hover{border-color:var(--primary);color:var(--primary-700);background:var(--primary-50);transform:translateY(-2px)}
.chip i{font-size:12px;color:var(--accent)}
.chip.is-current{background:var(--primary-50);border-color:rgba(30,91,214,.35);color:var(--primary-700);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--section);background:var(--surface);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand__name{display:block;font-size:17px;font-weight:800;line-height:1.15;color:var(--ink)}
.footer-brand__sub{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.08em;margin-top:2px}
.site-footer .footer-col p{font-size:14px;color:var(--ink-2);line-height:1.8}
.site-footer h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;letter-spacing:.02em}
.site-footer ul li{margin-bottom:9px}
.site-footer ul a{font-size:14px;color:var(--ink-2);transition:color .2s var(--ease)}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .wrap{max-width:1200px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .topbar{display:flex}
  :root{--section:72px}
  .page-head__grid{grid-template-columns:1fr;gap:26px}
  .split{grid-template-columns:1fr;gap:26px}
  .form-card{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .entry-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--section:56px}
  .wrap{padding:0 18px}
  .page-head{padding-top:22px}
  .page-head__card{padding:24px 20px}
  .lede{font-size:15.5px}
  .faq-card{padding:8px 18px}
  .faq-body{padding-right:16px}
  .form-card{padding:24px 20px}
  .cta-band{padding:30px 24px;border-radius:20px}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1 1 auto}
  .step{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .timeline::before{left:21px}
  .step__num{width:44px;height:44px;font-size:16px}
  .step__body{padding:18px 18px}
  .entry{grid-template-columns:1fr}
  .entry__media img{min-height:170px;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section-head{align-items:flex-start}
}
@media (max-width:520px){
  h1{font-size:26px}
  .crumb{font-size:13px}
  .btn{width:100%;padding:0 18px}
  .actions .btn{width:100%}
  .btn--inline{width:auto}
  .footer-bottom{flex-direction:column;gap:8px}
}