/* roulang page: index */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --page-bg:#F5F8FD;
  --card-bg:#FFFFFF;
  --text:#1D2A3F;
  --muted:#5A6B85;
  --border:#E3E9F2;
  --line:#EEF2F8;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(17,48,102,.06);
  --shadow-2:0 14px 34px rgba(17,48,102,.12);
  --shadow-3:0 18px 46px rgba(17,48,102,.16);
  --s4:4px;--s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s96:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--page-bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:var(--primary-soft);color:var(--primary-deep);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.24;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.8vw,34px);line-height:1.32;font-weight:700;letter-spacing:-.01em;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
.lead{font-size:17px;color:var(--muted);line-height:1.8;margin-top:16px;}
.muted{color:var(--muted);}
.small{font-size:13px;line-height:1.6;color:var(--muted);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#D7E0EE;}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-text{padding:0;height:auto;color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;background:none;}
.btn-text:hover{color:var(--accent);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
}
.badge-mint{background:rgba(20,160,106,.12);color:var(--mint);}
.badge-accent{background:rgba(255,106,43,.12);color:var(--accent-hover);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(17,48,102,.10);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:70px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-deep) 100%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:21px;height:21px;display:block;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:inline-block;position:relative;padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--text);border-radius:8px;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft);}
.main-nav a.is-active{color:var(--primary);font-weight:600;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{position:relative;}
.search-box input{
  width:210px;height:42px;padding:0 40px 0 16px;border-radius:999px;
  border:1px solid #D7E0EE;background:#F7F9FD;color:var(--text);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:#93A2BB;}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-soft);
}
.search-box svg{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--muted);pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid #D7E0EE;border-radius:10px;
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-3);
  padding:20px 24px 28px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav ul{display:grid;gap:4px;margin-bottom:20px;}
.mobile-drawer nav a{
  display:block;padding:13px 12px;border-radius:10px;
  font-size:16px;font-weight:500;color:var(--text);
}
.mobile-drawer nav a:hover,.mobile-drawer nav a.is-active{background:var(--primary-soft);color:var(--primary);}
.mobile-drawer .search-box input{width:100%;}
.mobile-drawer .btn{width:100%;margin-top:12px;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:#EAF1FC url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.90) 46%,rgba(255,255,255,.62) 100%);
}
.hero-inner{position:relative;padding:76px 0 68px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy h1{margin-bottom:18px;}
.hero-copy .hero-sub{
  font-size:19px;font-weight:600;color:var(--primary-deep);margin-bottom:14px;
}
.hero-copy .hero-desc{font-size:16px;color:var(--muted);line-height:1.85;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
}
.hero-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);
  border-radius:12px;padding:10px 16px;box-shadow:var(--shadow-1);
  font-size:13px;font-weight:600;color:var(--primary-deep);
}
.hero-stats{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;margin-top:52px;padding-top:30px;border-top:1px solid rgba(20,80,180,.14);
}
.hero-stats .num{font-size:28px;font-weight:700;color:var(--primary-deep);line-height:1.2;}
.hero-stats .lbl{font-size:13px;color:var(--muted);margin-top:4px;}

/* ===== 品牌主张 ===== */
.manifesto{max-width:720px;margin:0 auto;text-align:center;}
.manifesto p{font-size:17px;color:var(--muted);line-height:1.85;margin-top:18px;}

/* ===== 故事区 ===== */
.story-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.story-figure{position:relative;}
.story-figure img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--radius-lg);}
.story-figure::after{
  content:"";position:absolute;right:-16px;bottom:-16px;width:120px;height:120px;
  border-radius:20px;background:var(--primary-soft);z-index:-1;
}
.story-body p{color:var(--muted);line-height:1.85;margin-top:16px;}
.story-body p:first-of-type{margin-top:20px;}
.story-body .btn-text{margin-top:22px;}

/* ===== 精选内容 ===== */
.feature-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:stretch;}
.feature-main{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
}
.feature-main:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.thumb{overflow:hidden;border-radius:12px;}
.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.feature-main:hover .thumb img{transform:scale(1.03);}
.feature-main .thumb{border-radius:0;}
.feature-main .thumb img{aspect-ratio:16/9;}
.feature-main .fc-body{padding:26px 28px 30px;}
.feature-main h3{font-size:22px;margin:14px 0 10px;}
.feature-main h3 a{color:var(--text);}
.feature-main h3 a:hover{color:var(--primary);}
.feature-main p{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-side{display:grid;gap:20px;}
.mini-card{
  display:grid;grid-template-columns:150px 1fr;gap:18px;
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:16px;align-items:center;
  transition:box-shadow .2s ease,transform .2s ease;
}
.mini-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.mini-card .thumb{height:100%;}
.mini-card .thumb img{height:100%;aspect-ratio:4/3;border-radius:12px;}
.mini-card h4{margin:8px 0 6px;}
.mini-card h4 a{color:var(--text);}
.mini-card h4 a:hover{color:var(--primary);}
.mini-card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-top:10px;}

/* ===== 分类入口矩阵 ===== */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.cat-card{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.cat-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:#D2DEF3;}
.cat-card .thumb{border-radius:0;}
.cat-card .thumb img{aspect-ratio:16/10;}
.cat-card:hover .thumb img{transform:scale(1.03);}
.cat-card .cat-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.cat-card h3{font-size:18px;margin-bottom:8px;}
.cat-card h3 a{color:var(--text);}
.cat-card h3 a:hover{color:var(--primary);}
.cat-card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.cat-card .btn-text{margin-top:auto;font-size:14px;}

/* ===== 最新信息列表 ===== */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.news-card .thumb{border-radius:0;}
.news-card .thumb img{aspect-ratio:16/9;}
.news-card:hover .thumb img{transform:scale(1.03);}
.news-card .news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-card h3{font-size:17px;line-height:1.5;margin:12px 0 10px;}
.news-card h3 a{color:var(--text);}
.news-card h3 a:hover{color:var(--primary);}
.news-card .news-sum{
  font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid #F2F5FA;font-size:13px;color:var(--muted);
}
.news-foot .read{font-weight:600;color:var(--primary);}
.news-foot .read:hover{color:var(--accent);}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:40px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state img{width:96px;opacity:.6;margin:0 auto 16px;border-radius:12px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ===== 信任背书 ===== */
.trust-band{background:var(--primary-soft);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.trust-item{background:#fff;border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-1);}
.trust-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.trust-icon svg{width:22px;height:22px;color:var(--primary);}
.trust-item h4{margin-bottom:8px;}
.trust-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ===== 数据排行表 ===== */
.rank-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.rank-row{
  display:grid;grid-template-columns:64px 1.6fr 1fr 1fr 120px;
  align-items:center;gap:16px;padding:18px 26px;border-bottom:1px solid #F2F5FA;
  font-size:15px;transition:background .2s ease;
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:#FAFCFF;}
.rank-row.head{
  background:#F7F9FD;font-size:13px;font-weight:600;color:var(--muted);
  letter-spacing:.02em;padding:14px 26px;
}
.rank-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--primary-soft);
  color:var(--primary);font-weight:700;font-size:14px;
}
.rank-row.top .rank-no{background:var(--accent);color:#fff;}
.rank-name{font-weight:600;color:var(--text);}
.rank-val{color:var(--primary-deep);font-weight:600;font-variant-numeric:tabular-nums;}
.rank-trend{font-size:13px;color:var(--mint);font-weight:600;text-align:right;}
.rank-trend.down{color:var(--muted);}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  min-height:56px;display:flex;align-items:center;
  padding:14px 52px 14px 22px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:#D2DEF3;}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ===== CTA ===== */
.cta-band{
  background:var(--primary-deep);border-radius:var(--radius-lg);
  padding:52px 48px;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;
  align-items:center;color:#fff;box-shadow:var(--shadow-2);
}
.cta-band h2{color:#fff;}
.cta-band .cta-note{color:rgba(255,255,255,.78);font-size:15px;margin-top:12px;line-height:1.8;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1 1 auto;height:48px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);padding:0 18px;color:#fff;transition:border-color .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.62);}
.cta-form input:focus{outline:none;background:rgba(255,255,255,.16);border-color:#fff;}
.cta-privacy{font-size:12px;color:rgba(255,255,255,.62);margin-top:12px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.82);margin-top:0;}
.footer-main{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;
  padding:64px 0 44px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:300px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-sub form{display:flex;gap:10px;margin-top:16px;}
.footer-sub input{
  flex:1 1 auto;height:44px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.10);
  padding:0 14px;color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.55);}
.footer-sub input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.16);}
.footer-sub .btn{height:44px;padding:0 18px;font-size:14px;}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);margin-top:18px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--accent);}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .hero-grid{gap:40px;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .rank-row{grid-template-columns:56px 1.5fr 1fr 1fr 96px;gap:12px;padding:16px 20px;}
}
@media (max-width:1024px){
  .main-nav,.nav-actions .search-box{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:64px 0;}
  .hero-inner{padding:56px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/9;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px;}
  .story-grid{grid-template-columns:1fr;gap:32px;}
  .feature-layout{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:28px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .logo-text{font-size:16px;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .mini-card{grid-template-columns:120px 1fr;gap:14px;}
  .rank-row{grid-template-columns:44px 1fr 92px;font-size:14px;}
  .rank-row .rank-hide{display:none;}
  .rank-row.head{padding:12px 18px;}
}
@media (max-width:560px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px;}
  .hero-stats .num{font-size:24px;}
  .cat-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .mini-card{grid-template-columns:1fr;}
  .mini-card .thumb img{aspect-ratio:16/9;}
  .hero-cta .btn{width:100%;}
  .cta-band{padding:32px 22px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-main{grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
  .footer-sub form{flex-direction:column;}
  .footer-sub .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:480px){
  h1{font-size:28px;}
  .logo-text{font-size:15px;}
}

/* roulang page: article */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1D2A3F;
  --text-2:#5A6B85;
  --border:#E3E9F2;
  --line:#EEF2F8;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --sh-1:0 8px 24px rgba(17,48,102,.06);
  --sh-2:0 14px 34px rgba(17,48,102,.12);
  --sh-3:0 18px 46px rgba(17,48,102,.16);
  --container:1240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--primary-soft);color:var(--primary-deep);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:none;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:#D7E0EE;color:var(--primary);}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s ease-out,border-color .2s ease-out;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent);}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;font-weight:600;line-height:1;
}
.badge-cat{background:var(--primary-soft);color:var(--primary);}
.badge-mint{background:rgba(20,160,106,.12);color:var(--mint);}
.badge-tag{background:#fff;border:1px solid var(--border);color:var(--text-2);font-weight:500;}
.badge-tag:hover{border-color:var(--primary);color:var(--primary);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(17,48,102,.04);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(17,48,102,.10);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:18px;font-weight:700;color:var(--primary-deep);letter-spacing:.2px;}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:inline-flex;align-items:center;height:70px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-2);position:relative;
  transition:color .2s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease-out;
}
.main-nav a:hover{color:var(--primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;height:42px;padding:0 6px 0 14px;
  background:var(--bg);border:1px solid var(--border);border-radius:999px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft);}
.search-box input{
  width:170px;height:38px;border:0;background:transparent;font-size:14px;outline:none;
}
.search-box input::placeholder{color:#93A2BA;}
.search-box button{
  width:32px;height:32px;border:0;border-radius:50%;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background-color .2s ease-out;
}
.search-box button:hover{background:var(--primary-deep);}
.search-box svg{width:15px;height:15px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  display:none;position:fixed;inset:70px 0 0 0;background:#fff;z-index:55;
  padding:22px 18px 40px;overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer .drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer .drawer-nav a.is-active{color:var(--primary);}
.drawer .drawer-search{display:flex;gap:10px;margin:20px 0 16px;}
.drawer .drawer-search input{
  flex:1;height:46px;border:1px solid #D7E0EE;border-radius:var(--r-btn);padding:0 14px;outline:none;background:#fff;
}
.drawer .drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);margin-bottom:12px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease-out;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B7C2D6;}
.breadcrumb .current{color:var(--text);}

/* ============ 文章头部 ============ */
.article-hero{
  background:#fff;border-bottom:1px solid var(--line);
  padding:32px 0 36px;
}
.article-hero h1{
  font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.35;
  color:var(--primary-deep);max-width:900px;margin-bottom:16px;letter-spacing:-.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD6E6;}

/* ============ 文章主体 ============ */
.article-main{padding:48px 0 0;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,780px) 236px;
  gap:56px;justify-content:center;align-items:start;
}
.article-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:44px 48px 40px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text);}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.4;
  color:var(--primary-deep);margin:32px 0 12px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);margin:26px 0 10px;}
.article-body h4{font-size:17px;font-weight:600;margin:20px 0 8px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.85;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(20,80,180,.3);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body blockquote{
  background:var(--primary-soft);border-left:3px solid var(--primary);border-radius:8px;
  padding:16px 20px;margin:20px 0;color:#2A3A55;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left;}
.article-body th{background:var(--primary-soft);color:var(--primary-deep);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}
.article-body strong{font-weight:600;color:var(--primary-deep);}

/* 侧栏目录 */
.article-side{min-width:0;}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px 20px 14px;
}
.toc-sticky{position:sticky;top:96px;}
.toc-title{
  font-size:14px;font-weight:700;color:var(--primary-deep);
  padding-bottom:12px;margin-bottom:10px;border-bottom:1px solid var(--line);
}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--text-2);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;
}
.toc-list a:hover{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary);}

/* 文章尾部 */
.article-foot{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag-list a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:#fff;border:1px solid var(--border);
  transition:border-color .2s ease-out,color .2s ease-out,background-color .2s ease-out;
}
.tag-list a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}

/* 空态 */
.article-empty{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.article-empty .empty-pic{
  width:120px;height:88px;margin:0 auto 18px;border-radius:14px;overflow:hidden;
  background:var(--bg);display:flex;align-items:center;justify-content:center;
}
.article-empty .empty-pic img{width:100%;height:100%;object-fit:cover;opacity:.55;filter:grayscale(.4);}
.article-empty h2{font-size:22px;color:var(--primary-deep);margin-bottom:10px;}
.article-empty p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section-head{margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border-radius:999px;
  padding:6px 14px;margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);font-weight:700;color:var(--primary-deep);
  line-height:1.3;margin-bottom:10px;
}
.section-head p{color:var(--text-2);font-size:15px;max-width:640px;}

/* ============ 相关推荐 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.related-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.related-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);}
.related-card:hover .related-body h3{color:var(--primary);}
.related-body p{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-meta{
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);margin-top:auto;
}
.related-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.related-card:hover .related-more{color:var(--accent);}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 88px;}
.cta-card{
  background:var(--primary-deep);border-radius:var(--r-lg);padding:48px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;line-height:1.35;margin-bottom:12px;}
.cta-card p{color:rgba(255,255,255,.74);font-size:15px;line-height:1.75;}
.cta-form{display:flex;gap:10px;}
.cta-form input{
  flex:1;min-width:0;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;outline:none;
  transition:border-color .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{border-color:#fff;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.16);}
.cta-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:10px;}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--border);background:#fff;color:var(--primary);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;z-index:70;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s ease-out,background-color .2s ease-out,color .2s ease-out;
}
.back-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--primary);color:#fff;}
.back-top svg{width:18px;height:18px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#fff;padding:64px 0 0;margin-top:0;}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out;}
.footer-col ul a:hover{color:var(--accent);}
.footer-sub form{display:flex;gap:10px;margin:14px 0 14px;}
.footer-sub input{
  flex:1;min-width:0;height:44px;border-radius:var(--r-btn);padding:0 14px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;outline:none;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.5);}
.footer-sub input:focus{border-color:#fff;background:rgba(255,255,255,.14);}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:24px;}
  .article-side{order:-1;}
  .toc-sticky{position:static;}
  .toc-card{padding:16px 18px 12px;}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 12px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .header-actions .search-box{display:none;}
  .header-actions .btn-accent{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:14px;}
  .section{padding:64px 0;}
  .cta-wrap{padding-bottom:64px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:860px){
  .article-panel{padding:32px 26px 30px;}
  .cta-card{grid-template-columns:minmax(0,1fr);gap:24px;padding:34px 26px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .article-hero{padding:24px 0 26px;}
  .article-main{padding:32px 0 0;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .toc-list{grid-template-columns:minmax(0,1fr);}
  .section{padding:48px 0;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-wrap{padding-bottom:48px;}
  .footer-main{grid-template-columns:minmax(0,1fr);}
  .back-top{right:16px;bottom:18px;}
}
@media (max-width:560px){
  .article-panel{padding:26px 20px 24px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-sub form{flex-direction:column;}
  .footer-sub form .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1D2A3F;
  --text-2:#5A6B85;
  --border:#E3E9F2;
  --line:#EEF2F8;
  --input-border:#D7E0EE;
  --radius-card:16px;
  --radius-big:20px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(17,48,102,.06);
  --shadow-2:0 14px 34px rgba(17,48,102,.12);
  --shadow-3:0 18px 46px rgba(17,48,102,.16);
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text)}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.2px}
h2{font-size:clamp(24px,2.8vw,34px);letter-spacing:-.1px}
h3{font-size:20px;font-weight:600}
h4{font-size:17px;font-weight:600}
p{margin:0 0 14px;color:var(--text-2)}
p:last-child{margin-bottom:0}
::selection{background:var(--primary-soft);color:var(--primary-deep)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{font-size:16px;margin-top:12px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.8px;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(17,48,102,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(17,48,102,.10)}
.header-inner{display:flex;align-items:center;gap:20px;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--primary-deep);white-space:nowrap;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,#1B61CE,#0B2E6F);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:17px;letter-spacing:.2px}
.main-nav ul{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.main-nav a{
  display:block;position:relative;padding:9px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav a.is-active{color:var(--primary);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{position:relative}
.search input{
  height:42px;width:216px;border:1px solid var(--input-border);border-radius:999px;
  padding:0 16px 0 40px;background:#fff;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease,width .2s ease;
}
.search input::placeholder{color:#96A3B8}
.search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:#8C9AB2;fill:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--primary-deep);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--primary-deep);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;padding:20px 20px 40px;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  cursor:pointer;font-size:20px;color:var(--primary-deep);line-height:1;
}
.drawer-nav li + li{border-top:1px solid var(--line)}
.drawer-nav a{display:block;padding:15px 4px;font-size:16px;color:var(--text)}
.drawer-nav a.is-active{color:var(--primary);font-weight:600}
.drawer .search{margin:22px 0 16px}
.drawer .search input{width:100%}
.drawer-actions{display:grid;gap:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(20,80,180,.22)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.24)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--input-border);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-soft)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;
  transition:color .2s ease;
}
.btn-link:hover{color:var(--accent)}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:4px 12px;border-radius:999px;line-height:1.5;
}
.badge-cat{background:var(--primary-soft);color:var(--primary)}
.badge-live{background:rgba(20,160,106,.12);color:var(--mint)}
.badge-soft{background:#F3F6FC;color:var(--text-2)}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:#8C9AB2;margin-bottom:12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:#8C9AB2;transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb em{font-style:normal;color:var(--text)}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center right;
  min-height:300px;display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.93) 44%,rgba(232,240,254,.62) 100%);
}
.page-hero .container{position:relative;z-index:1;padding-top:52px;padding-bottom:52px}
.page-hero h1{margin-bottom:16px}
.page-hero .lead{font-size:16px;color:var(--text-2);max-width:660px;margin-bottom:24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 卖点卡 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:24px;transition:transform .2s ease-out,box-shadow .2s ease-out}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.feature-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;margin-bottom:16px;
}
.feature-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature h3{font-size:17px;margin-bottom:8px}
.feature p{font-size:14px;line-height:1.7;margin:0}

/* ============ 筛选 + 双列卡片 ============ */
.filter-layout{display:grid;grid-template-columns:236px 1fr;gap:32px;align-items:start}
.filter-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;position:sticky;top:96px;
}
.filter-panel h3{font-size:15px;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--primary);line-height:1.2}
.filter-list{display:flex;flex-wrap:wrap;gap:8px}
.filter-btn{
  border:1px solid var(--input-border);background:#fff;color:var(--text-2);
  border-radius:999px;padding:7px 16px;font-size:14px;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.filter-btn.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.filter-note{font-size:13px;color:var(--text-2);margin-top:18px;padding-top:16px;border-top:1px solid var(--line);line-height:1.6}

.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#EEF2F8}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.card-meta{font-size:13px;color:var(--text-2)}
.card h3{font-size:18px;line-height:1.45}
.card h3 a{transition:color .2s ease}
.card h3 a:hover{color:var(--primary)}
.card p{
  font-size:14px;line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2)}
.card.is-hidden{display:none}
.empty-state{
  display:none;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:40px 24px;text-align:center;
}
.empty-state.is-show{display:block}
.empty-state h3{font-size:17px;margin-bottom:8px}
.empty-state p{font-size:14px;margin-bottom:16px}

/* ============ 流程时间线 ============ */
.steps{position:relative;max-width:840px;margin:0 auto;padding-left:0}
.step{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding-bottom:32px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:27px;top:52px;bottom:0;width:2px;background:var(--line);
}
.step:last-child::before{display:none}
.step-num{
  width:56px;height:56px;border-radius:16px;background:#fff;border:1px solid var(--border);
  color:var(--primary);font-weight:700;font-size:18px;display:grid;place-items:center;
  box-shadow:var(--shadow-1);position:relative;z-index:1;
}
.step-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:22px 24px}
.step-body h3{font-size:17px;margin-bottom:8px}
.step-body p{font-size:14px;line-height:1.75;margin:0}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item[open]{box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  min-height:56px;display:flex;align-items:center;
  padding:14px 52px 14px 22px;font-size:17px;font-weight:600;color:var(--text);
  transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAFCFF}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);
  transform:translateY(-70%) rotate(45deg);transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-item[open] summary{color:var(--primary-deep)}
.faq-body{padding:0 22px 20px;position:relative}
.faq-body::before{content:"";position:absolute;left:0;top:2px;bottom:18px;width:3px;background:var(--primary);border-radius:0 3px 3px 0}
.faq-body p{font-size:15px;line-height:1.8;margin:0;padding-left:22px;color:var(--text-2)}

/* ============ 相关分类 ============ */
.related-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);
  box-shadow:var(--shadow-1);padding:26px 28px;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
}
.related-bar h3{font-size:16px;flex:0 0 auto}
.related-links{display:flex;gap:22px;flex-wrap:wrap}
.related-links a{font-size:15px;color:var(--primary);font-weight:600;transition:color .2s ease}
.related-links a:hover{color:var(--accent)}

/* ============ CTA ============ */
.cta-band{
  background:var(--primary-deep);border-radius:var(--radius-big);
  padding:48px;display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-2);
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.76);font-size:15px;margin:0}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;padding:0 18px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.cta-privacy{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#fff;padding:64px 0 0;margin-top:0}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-col ul a:hover{color:var(--accent)}
.footer-sub form{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 16px}
.footer-sub input{
  flex:1 1 150px;height:44px;border-radius:var(--radius-btn);padding:0 16px;font-size:14px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.55)}
.footer-sub input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.footer-contact{font-size:13px;color:rgba(255,255,255,.66);line-height:1.8;margin:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:14px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-2);
  color:var(--primary);display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
  z-index:70;font-size:18px;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-soft)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .main-nav,.header-actions .search,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:66px}
  .filter-layout{grid-template-columns:1fr}
  .filter-panel{position:static}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .page-hero{min-height:220px}
  .page-hero .container{padding-top:36px;padding-bottom:36px}
  .grid-4,.grid-3,.grid-2,.card-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .related-bar{padding:22px}
  .related-links{gap:16px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .header-inner{gap:12px}
  .logo-text{font-size:16px}
  .cta-band{padding:28px 22px}
  .footer-main{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .hero-cta .btn{width:100%}
  .step{grid-template-columns:44px 1fr;gap:14px}
  .step-num{width:44px;height:44px;font-size:16px;border-radius:12px}
  .step::before{left:21px;top:44px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:400px){
  h1{font-size:26px}
}

/* roulang page: category2 */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1D2A3F;
  --text-2:#5A6B85;
  --border:#E3E9F2;
  --line:#EEF2F8;
  --separator:#F2F5FA;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(17,48,102,.06);
  --shadow-2:0 14px 34px rgba(17,48,102,.12);
  --shadow-3:0 18px 46px rgba(17,48,102,.16);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{line-height:1.75}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary-soft);color:var(--primary-deep)}

.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(17,48,102,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(17,48,102,.10)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--primary);
  display:grid;place-items:center;flex:none;
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:17px;font-weight:700;color:var(--primary-deep);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center}
.main-nav ul{display:flex;list-style:none;gap:2px}
.main-nav a{
  position:relative;display:block;padding:8px 12px;border-radius:8px;
  font-size:15px;color:var(--text-2);transition:color .18s ease,background-color .18s ease;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav a.is-active{color:var(--primary);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box svg{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--text-2);fill:none;stroke-width:2;
}
.search-box input{
  width:210px;height:40px;border-radius:var(--radius-pill);
  border:1px solid var(--border);background:#F7F9FD;
  padding:0 16px 0 38px;font-size:14px;color:var(--text);
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:#93A1B8}
.search-box input:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 3px var(--primary-soft);
}
.nav-extra{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:#fff;color:var(--primary);border-color:#D7E0EE}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-2px)}
.btn-text{
  height:auto;padding:0;background:none;color:var(--primary);font-weight:600;
  border:none;text-underline-offset:2px;text-decoration:underline;
}
.btn-text:hover{color:var(--accent)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;line-height:1.7;
}
.badge-primary{background:var(--primary-soft);color:var(--primary)}
.badge-mint{background:rgba(20,160,106,.12);color:var(--mint)}
.eyebrow{
  display:inline-flex;padding:5px 14px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:14px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);color:var(--text-2);font-size:14px;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}

/* ---------- 首屏 ---------- */
.hero-sub{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);margin-bottom:12px;
}
.breadcrumb span.sep{color:#B6C1D4}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text);font-weight:400}
.hero-sub h1{color:var(--primary-deep);margin-bottom:16px}
.hero-sub h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:16px;color:var(--text-2);max-width:620px;margin-bottom:24px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);background:#fff;border:1px solid var(--line)}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-soft{background:#EFF5FF}
.section-head{max-width:720px;margin-bottom:40px}
.section-title{position:relative;padding-left:16px;color:var(--primary-deep);margin-bottom:14px}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--primary);border-radius:3px;
}
.section-desc{color:var(--text-2);font-size:15px}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.head-split .section-head{margin-bottom:0}

/* ---------- 卡片与网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:#DCE5F2}
.card h3{color:var(--primary-deep);margin-bottom:10px}
.card p{font-size:15px;color:var(--text-2)}
.card-media{border-radius:12px;overflow:hidden;margin-bottom:18px;aspect-ratio:16/9;background:#EAF0F9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.icon-box{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:grid;place-items:center;margin-bottom:16px;
}
.icon-box svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.card-note{font-size:13px;color:var(--text-2);margin-top:14px}

/* ---------- 数据维度列表 ---------- */
.dim-list{list-style:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1)}
.dim-list li{
  display:grid;grid-template-columns:150px 1fr;gap:20px;
  padding:20px 24px;border-bottom:1px solid var(--separator);
  transition:background-color .18s ease;
}
.dim-list li:last-child{border-bottom:none}
.dim-list li:hover{background:#F8FAFE}
.dim-name{font-weight:600;color:var(--primary-deep);font-size:16px}
.dim-value{font-size:15px;color:var(--text-2)}

/* ---------- 时间线 / 步骤轴 ---------- */
.timeline{list-style:none;position:relative;max-width:920px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:23px;top:10px;bottom:26px;width:2px;background:var(--border);
}
.timeline-item{position:relative;padding:0 0 28px 76px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-1);
  display:grid;place-items:center;font-weight:700;color:var(--primary);font-size:15px;
  z-index:1;
}
.timeline-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.timeline-body:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#DCE5F2}
.timeline-body h3{color:var(--primary-deep);margin-bottom:8px}
.timeline-body p{font-size:15px;color:var(--text-2)}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:14px;font-size:13px;color:var(--text-2)}

/* ---------- 信任承诺 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.trust-item:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.trust-item h4{color:var(--primary-deep);margin:14px 0 8px}
.trust-item p{font-size:14px;color:var(--text-2)}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--primary-deep);border-radius:var(--radius-lg);
  padding:48px;color:#fff;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-2);
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px}
.subscribe{display:flex;gap:12px}
.subscribe input{
  flex:1;height:48px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);
  color:#fff;padding:0 16px;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe input::placeholder{color:rgba(255,255,255,.55)}
.subscribe input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.22)}
.privacy-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px}

/* ---------- 相关分类 ---------- */
.related-cats{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  padding:24px 0 0;border-top:1px solid var(--border);margin-top:40px;
}
.related-cats strong{font-size:15px;color:var(--primary-deep)}
.related-cats a{font-size:15px;color:var(--primary);transition:color .18s ease}
.related-cats a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:#fff;padding:64px 0 24px;margin-top:96px}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12)}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-col h4{color:#fff;margin-bottom:18px}
.footer-col ul{list-style:none;display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.78);transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.72)}
.footer-sub form{display:flex;gap:10px;margin:14px 0}
.footer-sub input{
  flex:1;height:44px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;padding:0 14px;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.5)}
.footer-sub input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.2)}
.footer-contact{font-size:13px;color:rgba(255,255,255,.66);line-height:1.9;margin-top:6px}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:48px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero-grid{gap:40px}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-sub{grid-column:1 / -1}
}
@media (max-width:1024px){
  .nav-toggle{display:inline-flex}
  .header-actions .search-box{display:none}
  .header-actions .btn{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;padding:20px;display:none;flex-direction:column;
    box-shadow:var(--shadow-3);overflow-y:auto;z-index:90;
  }
  .site-header.nav-open .main-nav{display:flex}
  .main-nav ul{flex-direction:column;gap:6px;width:100%}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:10px}
  .main-nav a.is-active{background:var(--primary-soft)}
  .main-nav a.is-active::after{display:none}
  .nav-extra{display:flex;flex-direction:column;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
  .nav-extra .search-box{position:relative}
  .nav-extra .search-box input{width:100%;height:46px;border-radius:var(--radius-btn)}
  .nav-extra .btn{display:inline-flex;width:100%}
  .section{padding:64px 0}
  .hero-sub{padding:44px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{order:2}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .main-nav{top:64px}
  .logo-text{font-size:16px}
  .section{padding:48px 0}
  .hero-sub{padding:32px 0 40px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .dim-list li{grid-template-columns:1fr;gap:6px}
  .timeline-item{padding-left:60px}
  .timeline::before{left:19px}
  .timeline-dot{width:40px;height:40px;border-radius:12px;font-size:14px}
  .head-split{flex-direction:column;align-items:flex-start}
  .subscribe{flex-direction:column}
  .subscribe input{width:100%}
  .footer-main{grid-template-columns:1fr;gap:32px}
  .footer-main{gap:32px}
  .footer-sub{grid-column:auto}
  .cta-band{padding:28px;border-radius:16px}
  .site-footer{margin-top:64px}
}
@media (max-width:520px){
  h1{font-size:28px}
  .hero-cta .btn{width:100%}
  .card{padding:20px}
  .timeline-body{padding:18px}
  .footer-sub form{flex-direction:column}
  .footer-sub .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --page:#F5F8FD;
  --card:#FFFFFF;
  --text:#1D2A3F;
  --text-2:#5A6B85;
  --border:#E3E9F2;
  --border-strong:#D7E0EE;
  --divider:#EEF2F8;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(17,48,102,.06);
  --shadow-2:0 14px 34px rgba(17,48,102,.12);
  --shadow-3:0 18px 46px rgba(17,48,102,.16);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --container:1240px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
}
*,*::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(--text);background:var(--page);
}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.32;font-weight:700}
h1{font-size:clamp(30px,4.4vw,46px);font-weight:700}
h2{font-size:clamp(24px,2.8vw,34px);font-weight:700}
h3{font-size:21px;font-weight:600}
h4{font-size:17px;font-weight:600}
p{margin:0 0 14px;color:var(--text)}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary-soft);color:var(--primary-deep)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-secondary{background:#fff;border-color:var(--border-strong);color:var(--primary)}
.btn-secondary:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0 0 2px;
  border:0;border-bottom:2px solid transparent;background:none;color:var(--primary);
  font-size:15px;font-weight:600;transition:color .2s ease-out,border-color .2s ease-out;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.link-arrow::after{content:"→";transition:transform .2s ease-out}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--divider);box-shadow:0 2px 10px rgba(17,48,102,.04);
  transition:box-shadow .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(17,48,102,.10)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:70px;padding-top:8px;padding-bottom:8px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 100%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:22px;height:22px}
.logo-text{font-size:18px;font-weight:700;color:var(--primary-deep);letter-spacing:.2px;white-space:nowrap}
.main-nav{flex:1;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.main-nav a{
  display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--text-2);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a.is-active{color:var(--primary);border-bottom-color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:13px;width:16px;height:16px;stroke:var(--text-2);pointer-events:none}
.search-box input{
  width:216px;height:40px;padding:0 14px 0 36px;font-size:14px;
  border:1px solid var(--border-strong);border-radius:var(--radius-pill);
  background:#F8FBFF;color:var(--text);transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.search-box input::placeholder{color:#8C9AB2}
.search-box input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border-strong);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;transition:transform .2s ease-out}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;inset:70px 0 0 0;z-index:55;background:#fff;
  padding:24px 24px 40px;overflow-y:auto;
  box-shadow:var(--shadow-3);animation:drawerIn .22s ease-out;
}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.mobile-drawer[hidden]{display:none}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.mobile-drawer ul a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;font-weight:600;color:var(--text-2);background:#F8FBFF;
}
.mobile-drawer ul a.is-active{color:var(--primary);background:var(--primary-soft)}
.mobile-drawer .search-box input{width:100%}
.mobile-drawer .drawer-cta{margin-top:16px;display:flex;flex-direction:column;gap:12px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8695AC}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#B9C4D6}
.breadcrumb a{color:#8695AC}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb li:last-child{color:var(--text)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;margin-top:20px;border-radius:var(--radius-lg);overflow:hidden;
  background-color:#E9F0FC;
  background-image:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 44%,rgba(255,255,255,.42) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  box-shadow:var(--shadow-1);
}
.page-hero-inner{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;
  padding:52px 48px;min-height:300px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:16px;
  border-radius:var(--radius-pill);background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.page-hero h1{margin-bottom:16px;color:var(--primary-deep)}
.page-hero h1 .thin{display:block;font-size:clamp(16px,1.6vw,19px);font-weight:600;color:var(--primary);margin-top:10px}
.hero-lead{max-width:620px;font-size:16px;line-height:1.8;color:var(--text-2)}
.hero-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{
  border-radius:var(--radius-card);overflow:hidden;background:#fff;
  border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-2)}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0 0}
.section:last-of-type{padding-bottom:0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:12px;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:.86em;
  border-radius:3px;background:var(--primary-deep);
}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{display:none}
.section-head p{color:var(--text-2);font-size:16px}
.section-bar{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px}

/* ---------- 速览数据卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat-card{
  background:var(--card);border:1px solid var(--divider);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.stat-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.stat-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.stat-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.stat-value{font-size:30px;font-weight:700;color:var(--primary-deep);line-height:1.2}
.stat-value small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- 规格对比卡 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.spec-card{
  background:var(--card);border:1px solid var(--divider);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.spec-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.spec-card-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.spec-card-head h3{font-size:19px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--primary-soft);color:var(--primary);
}
.badge-mint{background:rgba(20,160,106,.12);color:var(--mint)}
.spec-card > p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.spec-list dt{font-weight:400}
.spec-row{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:14px;
  padding:11px 0;border-bottom:1px dashed var(--divider);font-size:15px;
}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-row dt{color:var(--text-2);font-size:14px}
.spec-row dd{margin:0;color:var(--text);font-weight:500}

/* ---------- 术语列表 ---------- */
.term-wrap{
  background:var(--card);border:1px solid var(--divider);border-radius:var(--radius-lg);
  padding:12px 28px;box-shadow:var(--shadow-1);
}
.term-item{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:24px;
  padding:20px 0;border-bottom:1px solid var(--divider);
}
.term-item:last-child{border-bottom:0}
.term-item h4{color:var(--primary-deep);font-size:17px}
.term-item p{font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 自查清单 ---------- */
.check-panel{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center;
  background:var(--primary-soft);border-radius:var(--radius-lg);padding:44px;
}
.check-panel h2{margin-bottom:12px;padding-left:16px;position:relative}
.check-panel h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:.86em;border-radius:3px;background:var(--primary-deep)}
.check-panel .panel-figure{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);background:#fff}
.check-panel .panel-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.check-list{display:grid;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--divider);
  border-radius:12px;padding:16px 18px;font-size:15px;line-height:1.75;color:var(--text-2);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.check-list li:hover{box-shadow:var(--shadow-1);transform:translateY(-2px)}
.check-list li strong{display:block;color:var(--text);font-size:16px;font-weight:600;margin-bottom:2px}
.check-dot{
  flex-shrink:0;width:22px;height:22px;margin-top:3px;border-radius:50%;
  background:rgba(20,160,106,.12);position:relative;
}
.check-dot::after{
  content:"";position:absolute;left:7px;top:5px;width:6px;height:10px;
  border:2px solid var(--mint);border-top:0;border-left:0;transform:rotate(45deg);
}

/* ---------- 相关分类 ---------- */
.related-links{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:22px 0;
}
.related-links span{font-size:14px;font-weight:600;color:var(--text-2)}
.related-links a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border-strong);font-size:14px;font-weight:600;color:var(--primary);
}
.related-links a:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:88px;background:var(--primary-deep);border-radius:var(--radius-lg);
  padding:48px;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:40px;align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.8;max-width:460px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font-size:15px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.18)}
.cta-note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.6)}
.cta-success{margin-top:12px;font-size:13px;color:#7FE0B4;display:none}
.cta-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:var(--primary-deep);color:#fff;padding:64px 0 0}
.footer-main{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2.4fr) minmax(0,2.4fr) minmax(0,3.2fr);gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.74)}
.footer-col ul a:hover{color:var(--accent)}
.footer-sub form{display:flex;gap:10px;margin-top:12px}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.55)}
.footer-sub input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.footer-contact{margin-top:16px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .main-nav a{padding:0 10px;font-size:14px}
  .search-box input{width:180px}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:1024px){
  .main-nav,.header-actions .search-box,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:62px}
  .mobile-drawer{inset:62px 0 0 0}
  .section{padding-top:64px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .page-hero-inner{grid-template-columns:1fr;padding:40px 32px;gap:28px}
  .hero-figure{order:2}
  .spec-grid{grid-template-columns:1fr}
  .check-panel{grid-template-columns:1fr;padding:32px}
  .cta-band{grid-template-columns:1fr;padding:36px;margin-top:64px}
  .term-item{grid-template-columns:140px minmax(0,1fr);gap:18px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding-top:48px}
  .page-hero-inner{padding:30px 22px;min-height:220px}
  .hero-lead{font-size:15px}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .spec-row{grid-template-columns:88px minmax(0,1fr);font-size:14px}
  .term-wrap{padding:8px 18px}
  .term-item{grid-template-columns:1fr;gap:6px}
  .check-panel{padding:24px}
  .cta-band{padding:28px;border-radius:var(--radius-card)}
  .footer-main{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:520px){
  h3{font-size:19px}
  .hero-actions .btn,.cta-form .btn{width:100%}
  .cta-form{flex-direction:column}
  .related-links{gap:8px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --primary:#1450B4;
  --primary-deep:#0B2E6F;
  --primary-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-hover:#E85818;
  --mint:#14A06A;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1D2A3F;
  --text-sub:#5A6B85;
  --border:#E3E9F2;
  --line:#EEF2F8;
  --line-soft:#F2F5FA;
  --input-border:#D7E0EE;
  --danger:#D94A4A;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(17,48,102,.06);
  --shadow-2:0 14px 34px rgba(17,48,102,.12);
  --shadow-3:0 18px 46px rgba(17,48,102,.16);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font:"-apple-system","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
/* ============ 基础 reset ============ */
*,*::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(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--primary-soft);color:var(--primary-deep);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:1240px;margin:0 auto;padding:0 24px;}
.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;}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,80,180,.22);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.24);}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--input-border);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-deep);transform:translateY(-2px);}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
  text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:2px;
}
.btn-text:hover{color:var(--accent);}
/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;line-height:1.6;
  background:var(--primary-soft);color:var(--primary);
}
.badge-mint{background:rgba(20,160,106,.12);color:var(--mint);}
.badge-accent{background:rgba(255,106,43,.12);color:var(--accent-hover);}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(17,48,102,.04);
  transition:box-shadow .22s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(17,48,102,.12);}
.header-inner{display:flex;align-items:center;gap:24px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary) 0%,#1B63D6 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:19px;font-weight:700;color:var(--primary-deep);letter-spacing:.4px;white-space:nowrap;}
.main-nav{flex:1;min-width:0;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  display:inline-block;position:relative;
  padding:22px 12px;font-size:15px;font-weight:600;color:var(--text-sub);
  transition:color .2s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;
  background:var(--primary);border-radius:2px;opacity:0;transform:scaleX(.4);
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.main-nav a:hover{color:var(--primary-deep);}
.main-nav a:hover::after{opacity:.45;transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);}
.main-nav a.is-active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;width:220px;
  background:var(--bg);border:1px solid var(--input-border);border-radius:var(--radius-btn);
  transition:border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft);}
.search-box svg{width:16px;height:16px;flex-shrink:0;stroke:var(--text-sub);}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#8D9CB4;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--input-border);border-radius:var(--radius-btn);
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-deep);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:#fff;
  padding:20px 24px 40px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s ease-out;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:50px;margin-bottom:12px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--input-border);border-radius:var(--radius-btn);
  background:#fff;color:var(--primary-deep);font-size:20px;line-height:1;
}
.drawer-nav li + li{border-top:1px solid var(--line-soft);}
.drawer-nav a{display:block;padding:16px 4px;font-size:16px;font-weight:600;color:var(--text);}
.drawer-nav a.is-active{color:var(--primary);}
.drawer-search{margin:20px 0 16px;width:100%;}
/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:#8D9CB4;margin-bottom:12px;
}
.breadcrumb a{color:#8D9CB4;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C3CDDD;}
.breadcrumb .current{color:var(--text);}
/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 46%,rgba(232,240,254,.74) 100%);
}
.cat-hero-inner{
  position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  min-height:300px;padding:52px 0 56px;
}
.cat-hero h1{font-size:clamp(30px,4.4vw,40px);letter-spacing:.4px;margin-bottom:16px;}
.cat-hero h1 span{color:var(--primary);}
.cat-hero p{font-size:16px;color:var(--text-sub);max-width:620px;margin-bottom:24px;}
.cat-hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-2);border:1px solid #fff;
}
.cat-hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cat-hero-figure .figure-tag{
  position:absolute;left:16px;top:16px;background:rgba(11,46,111,.86);color:#fff;
  font-size:13px;font-weight:600;padding:6px 12px;border-radius:var(--radius-pill);
}
/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:22px;background:var(--primary);
  border-radius:3px;margin-right:12px;vertical-align:-2px;
}
.section-head p{color:var(--text-sub);font-size:16px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
/* ============ 能力卡片 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:#DCE6F5;}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;stroke:var(--primary);}
.card h3{font-size:19px;margin-bottom:10px;}
.card p{font-size:14px;color:var(--text-sub);line-height:1.7;}
.card .card-foot{margin-top:16px;display:flex;align-items:center;gap:10px;}
.card-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out;}
.card-media:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.card-media .thumb{overflow:hidden;}
.card-media .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .34s ease-out;}
.card-media:hover .thumb img{transform:scale(1.03);}
.card-media .body{padding:20px 22px 24px;}
.card-media .body h3{font-size:18px;margin:12px 0 10px;}
.card-media .body p{font-size:14px;color:var(--text-sub);}
/* ============ 折叠分组 ============ */
.acc-group{border-radius:var(--radius-card);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1);overflow:hidden;}
.acc-group details + details{border-top:1px solid var(--line-soft);}
.acc-group summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px 16px 24px;
  font-size:17px;font-weight:600;color:var(--text);
  transition:background .18s ease-out,color .18s ease-out;
}
.acc-group summary::-webkit-details-marker{display:none;}
.acc-group summary:hover{background:#FAFCFF;color:var(--primary-deep);}
.acc-group summary .sum-meta{font-size:13px;font-weight:600;color:var(--text-sub);flex-shrink:0;}
.acc-group summary .chev{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;background:var(--primary-soft);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .18s ease-out,background .18s ease-out;
}
.acc-group summary .chev svg{width:12px;height:12px;stroke:var(--primary);}
.acc-group details[open] > summary{background:var(--primary-soft);color:var(--primary-deep);}
.acc-group details[open] > summary .chev{transform:rotate(180deg);background:#fff;}
.acc-body{
  padding:6px 24px 26px 24px;
  border-left:3px solid var(--primary);background:#fff;
  animation:accIn .18s ease-out;
}
@keyframes accIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}
.acc-body p{font-size:15px;color:var(--text-sub);line-height:1.8;}
.acc-list{margin-top:6px;}
.acc-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line-soft);
}
.acc-list li:last-child{border-bottom:0;}
.acc-list .dot{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;background:var(--primary-soft);
  color:var(--primary);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}
.acc-list strong{display:block;font-size:15px;font-weight:600;color:var(--text);margin-bottom:2px;}
.acc-list span{font-size:14px;color:var(--text-sub);line-height:1.7;}
.acc-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;}
.acc-side{
  position:sticky;top:94px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;
}
.acc-side h3{font-size:17px;margin-bottom:14px;}
.acc-side .side-list li{padding:11px 0;border-bottom:1px dashed var(--line-soft);font-size:14px;color:var(--text-sub);}
.acc-side .side-list li:last-child{border-bottom:0;}
.acc-side .side-note{
  margin-top:18px;padding:14px 16px;background:var(--primary-soft);border-radius:12px;
  font-size:13px;color:var(--primary-deep);line-height:1.75;
}
/* ============ 步骤轴（横向） ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px 22px;
}
.flow-item .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  font-size:14px;font-weight:700;margin-bottom:14px;
}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--text-sub);}
/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item + .faq-item{margin-top:14px;}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;font-size:17px;font-weight:600;color:var(--text);
  transition:background .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FAFCFF;color:var(--primary-deep);}
.faq-item summary .chev{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;background:var(--primary-soft);
  display:inline-flex;align-items:center;justify-content:center;transition:transform .18s ease-out,background .18s ease-out;
}
.faq-item summary .chev svg{width:12px;height:12px;stroke:var(--primary);}
.faq-item[open] summary{background:var(--primary-soft);color:var(--primary-deep);}
.faq-item[open] summary .chev{transform:rotate(180deg);background:#fff;}
.faq-answer{padding:4px 22px 22px;border-left:3px solid var(--primary);animation:accIn .18s ease-out;}
.faq-answer p{font-size:15px;color:var(--text-sub);line-height:1.8;}
/* ============ 相关分类 ============ */
.rel-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:22px 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;
}
.rel-bar .rel-title{font-size:15px;font-weight:700;color:var(--primary-deep);}
.rel-bar a{
  font-size:15px;font-weight:600;color:var(--text-sub);
  display:inline-flex;align-items:center;gap:6px;
}
.rel-bar a:hover{color:var(--accent);}
/* ============ CTA ============ */
.cta-band{
  background:var(--primary-deep);border-radius:var(--radius-lg);
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  color:#fff;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;outline:none;font-size:15px;
  transition:border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{border-color:#fff;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.18);}
.cta-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:12px;}
/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#fff;padding:60px 0 0;margin-top:0;}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:rgba(255,255,255,.75);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-sub form{display:flex;gap:10px;margin-top:12px;}
.footer-sub input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);
  color:#fff;outline:none;font-size:14px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.55);}
.footer-sub input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16);}
.footer-contact{margin-top:16px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:90;
  width:46px;height:46px;border-radius:50%;border:0;
  background:var(--primary);color:#fff;box-shadow:var(--shadow-2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease-out,transform .22s ease-out,background .22s ease-out,visibility .22s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--primary-deep);}
.to-top svg{width:18px;height:18px;stroke:#fff;}
/* ============ 响应式 ============ */
@media (max-width:1100px){
  .header-inner{gap:16px;}
  .main-nav a{padding:22px 9px;font-size:14px;}
  .search-box{width:170px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .acc-layout{grid-template-columns:1fr;}
  .acc-side{position:static;}
}
@media (max-width:1024px){
  .main-nav,.search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;padding:40px 0 44px;min-height:0;}
  .cat-hero-figure{max-width:560px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .footer-main{grid-template-columns:repeat(2,1fr);gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .section-head{margin-bottom:28px;}
  .card{padding:20px;}
  .cta-form{flex-direction:column;}
  .footer-main{grid-template-columns:1fr;gap:32px;}
  .rel-bar{padding:18px;}
}
@media (max-width:560px){
  .header-inner{height:64px;}
  .logo-text{font-size:17px;}
  .grid-4{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .cat-hero-inner{padding:32px 0 36px;}
  .cta-band{padding:26px;border-radius:var(--radius-card);}
  .to-top{right:16px;bottom:20px;}
  .acc-group summary{padding:14px 16px;}
  .acc-body{padding:4px 16px 22px 16px;}
  .faq-item summary{padding:14px 16px;font-size:16px;}
  .faq-answer{padding:2px 16px 20px;}
}