/* roulang page: index */
:root{
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#EDF2F9;
  --primary:#1E3A6E;
  --primary-deep:#14294F;
  --primary-dark:#0D1B33;
  --primary-soft:#E6EEF9;
  --accent:#17807A;
  --accent-soft:#E2F1EF;
  --spark:#E2A13C;
  --ink:#14202E;
  --ink-2:#5A6B80;
  --ink-3:#8A99AC;
  --line:#E3E9F2;
  --success:#1F8A57;
  --warning:#C98A16;
  --danger:#C2402F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,41,79,.06);
  --sh-2:0 6px 18px rgba(20,41,79,.08);
  --sh-3:0 18px 40px rgba(20,41,79,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:200ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::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;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head-main{max-width:640px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
h2.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--primary-deep);
}
.section-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--accent);
  position:relative;
  white-space:nowrap;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  width:0;height:1px;
  background:var(--accent);
  transition:width var(--t);
}
.text-link:hover::after{width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--primary-dark);transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:#CBDBEE;transform:translateY(-1px)}
.btn-ghost:active{background:#D8E6F6;transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-soft);
  color:var(--primary);
  white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.badge-mute{background:var(--surface-2);color:var(--ink-2)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:12px 0 4px;
  background:var(--bg);
  transition:padding var(--t),box-shadow var(--t);
}
.header-inner{position:relative}
.nav-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:10px 14px;
  box-shadow:var(--sh-2);
  transition:box-shadow var(--t),padding var(--t);
}
.site-header.is-stuck .nav-card{box-shadow:var(--sh-3);padding:8px 14px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:4px 6px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:9px;
  background:var(--primary-deep);
  color:var(--spark);
  flex-shrink:0;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--primary-deep);
  letter-spacing:-.2px;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  min-width:0;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-item svg{flex-shrink:0;opacity:.85}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
.nav-item.active{background:var(--primary-soft);color:var(--primary)}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:2px;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;
  border-radius:2px;
  background:var(--accent);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface-2);
  color:var(--primary);
  cursor:pointer;
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--primary-soft);border-color:#CBDBEE}
.nav-drawer{
  display:none;
  margin-top:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:16px;
}
.nav-drawer.open{display:block}
.drawer-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.drawer-item{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:600;
  transition:background var(--t),color var(--t);
}
.drawer-item.active{background:var(--primary-soft);color:var(--primary);box-shadow:inset 3px 0 0 var(--accent)}
.drawer-item:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-cta{margin-top:14px}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(20,41,79,.35);
  z-index:70;
}
.drawer-mask.open{display:block}

/* ============ Hero ============ */
.hero{padding:40px 0 8px}
.hero-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:48px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  margin-bottom:20px;
  box-shadow:var(--sh-1);
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--danger)}
h1.hero-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--primary-deep);
}
.hero-lead{
  margin-top:18px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-point{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
  font-weight:500;
}
.hero-point svg{color:var(--accent);flex-shrink:0}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--surface-2);
  aspect-ratio:4/3;
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 400ms var(--ease);
}
.hero-media:hover img{transform:scale(1.02)}
.hero-overlay{
  position:absolute;
  left:16px;bottom:16px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:rgba(20,41,79,.88);
  color:#EAF1FA;
  box-shadow:var(--sh-2);
}
.hero-overlay .ov-label{font-size:12px;color:#A9BACF;line-height:1.4}
.hero-overlay .ov-value{font-size:15px;font-weight:700;color:#fff;line-height:1.4}
.hero-overlay .ov-divider{width:1px;height:26px;background:rgba(255,255,255,.18)}

/* ============ 数据条 ============ */
.stat-band{
  margin-top:56px;
  background:var(--primary-deep);
  border-radius:var(--r-lg);
  padding:30px 34px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  box-shadow:var(--sh-2);
  position:relative;
  overflow:hidden;
}
.stat-band::before{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:200px;height:200px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(226,161,60,.18),transparent 70%);
}
.stat-item{border-left:2px solid rgba(255,255,255,.12);padding-left:18px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:30px;
  font-weight:700;
  color:#fff;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:14px;font-weight:600;color:var(--spark);margin-left:4px}
.stat-label{font-size:13px;color:#A9BACF;margin-top:4px}

/* ============ 合集目录 ============ */
.toc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:10px 24px;
}
.toc-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  column-gap:40px;
}
.toc-row{
  display:grid;
  grid-template-columns:44px 1fr auto 18px;
  align-items:center;
  gap:14px;
  padding:20px 10px;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:background var(--t),transform var(--t);
}
.toc-row:hover{background:var(--primary-soft)}
.toc-row:hover .toc-arrow{transform:translateX(4px);color:var(--accent)}
.toc-idx{
  font-size:24px;
  font-weight:700;
  color:var(--spark);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.toc-title{
  font-size:17px;
  font-weight:600;
  color:var(--primary-deep);
  transition:color var(--t);
}
.toc-row:hover .toc-title{color:var(--accent)}
.toc-desc{
  font-size:13px;
  color:var(--ink-2);
  line-height:1.7;
  margin-top:2px;
}
.toc-count{
  font-size:12px;
  font-weight:600;
  color:var(--ink-2);
  background:var(--surface-2);
  border-radius:999px;
  padding:3px 10px;
  white-space:nowrap;
}
.toc-arrow{color:var(--ink-3);transition:transform var(--t),color var(--t)}

/* ============ 精选条目 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:#D6E2F1;
}
.post-thumb{
  aspect-ratio:16/10;
  background:var(--surface-2);
  overflow:hidden;
}
.post-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 320ms var(--ease);
}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.post-title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  color:var(--primary-deep);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--t);
}
.post-card:hover .post-title{color:var(--accent)}
.post-desc{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.post-meta .dot-sep{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}

/* ============ 最新信息 ============ */
.news-shell{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:12px 24px;
}
.news-list{display:flex;flex-direction:column}
.news-item{
  display:grid;
  grid-template-columns:210px 1fr;
  gap:22px;
  padding:22px 10px;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-sm);
  color:inherit;
  transition:background var(--t);
}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:var(--primary-soft)}
.news-thumb{
  width:100%;
  aspect-ratio:16/9;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--surface-2);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.news-item:hover .news-thumb img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.meta-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--primary-deep);
  transition:color var(--t);
}
.news-item:hover .news-title{color:var(--accent)}
.news-desc{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-more{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  margin-top:2px;
}
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:56px 20px;
  text-align:center;
}
.empty-state svg{color:var(--ink-3)}
.empty-state p{font-size:15px;color:var(--ink-2)}
.empty-state .empty-title{font-size:16px;font-weight:600;color:var(--primary-deep)}

/* ============ 分类快捷入口 ============ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cat-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E2F1}
.cat-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  transition:background var(--t),color var(--t);
}
.cat-card:hover .cat-icon{background:var(--accent-soft);color:var(--accent)}
.cat-name{font-size:18px;font-weight:600;color:var(--primary-deep)}
.cat-desc{font-size:14px;color:var(--ink-2);line-height:1.8}
.cat-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:6px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  font-weight:600;
  color:var(--accent);
}
.cat-foot svg{transition:transform var(--t)}
.cat-card:hover .cat-foot svg{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:6px 24px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--primary-deep);
  cursor:pointer;
  transition:color var(--t);
}
.faq-q:hover{color:var(--accent)}
.faq-icon{
  flex-shrink:0;
  width:22px;height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--primary);
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.faq-item.open .faq-panel{max-height:360px}
.faq-panel p{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:820px;
}

/* ============ CTA ============ */
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:34px 36px;
  background:linear-gradient(120deg,var(--primary-soft),#F3F7FD);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.cta-title{
  font-size:20px;
  font-weight:700;
  color:var(--primary-deep);
  letter-spacing:-.2px;
}
.cta-sub{font-size:14px;color:var(--ink-2);margin-top:6px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),border-color var(--t);
}
.icon-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0)}
.copy-tip{
  font-size:13px;
  color:var(--success);
  margin-top:10px;
  min-height:20px;
  opacity:0;
  transition:opacity var(--t);
}
.copy-tip.show{opacity:1}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--primary-deep);
  color:#D8E2F0;
  margin-top:88px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--spark)}
.footer-brand-text{font-size:17px;font-weight:700;color:#fff}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:#A9BACF;
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,
.footer-col li{
  font-size:14px;
  color:#B9C7DA;
  transition:color var(--t);
  line-height:1.7;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{color:#B9C7DA}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:#8FA2BC;
}
.footer-bottom a{color:#8FA2BC}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
  .hero-grid{gap:36px}
  .toc-grid{column-gap:28px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:68px 0}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:28px 0 0}
  .hero-media{aspect-ratio:16/10}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:22px;padding:26px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .toc-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr;gap:16px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:68px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  h2.section-title{font-size:24px}
  .hero-title{font-size:clamp(26px,7vw,32px)}
  .nav-card{gap:10px;padding:8px 10px}
  .brand-text{font-size:15px}
  .nav-actions .btn{display:none}
  .grid-3{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:14px;padding:18px 6px}
  .news-thumb{aspect-ratio:16/9;max-width:100%}
  .news-shell{padding:8px 14px}
  .toc-card{padding:6px 14px}
  .toc-row{grid-template-columns:32px 1fr auto;gap:10px;padding:16px 6px}
  .toc-arrow{display:none}
  .toc-idx{font-size:20px}
  .toc-title{font-size:16px}
  .faq-card{padding:4px 16px}
  .faq-q{font-size:15px;padding:16px 0}
  .stat-band{grid-template-columns:1fr 1fr;padding:22px 20px;margin-top:40px}
  .stat-num{font-size:24px}
  .cta-actions{width:100%}
  .icon-btn{flex:1;justify-content:center;padding:0 12px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:479px){
  .hero-actions .btn{flex:1}
  .post-body{padding:16px}
  .hero-points{gap:8px 16px}
  .hero-overlay{padding:10px 12px;gap:10px}
  .hero-overlay .ov-value{font-size:14px}
  .drawer-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr}
  .stat-item{border-left:0;padding-left:0}
}

/* roulang page: article */
:root{
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#EDF2F9;
  --primary:#1E3A6E;
  --primary-deep:#14294F;
  --primary-soft:#E6EEF9;
  --accent:#17807A;
  --spark:#E2A13C;
  --ink:#14202E;
  --ink-2:#5A6B80;
  --ink-3:#8A99AC;
  --line:#E3E9F2;
  --success:#1F8A57;
  --danger:#C2402F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,41,79,.06);
  --sh-2:0 6px 18px rgba(20,41,79,.08);
  --sh-3:0 18px 40px rgba(20,41,79,.12);
  --ease:200ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 卡片化导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0;
  transition:padding var(--ease);
}
.site-header.scrolled{padding:6px 0;}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:0 6px;
  font-size:17px;
  font-weight:700;
  color:var(--primary-deep);
  white-space:nowrap;
}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:var(--primary);
  color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.brand:hover{color:var(--primary);}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item svg{flex:0 0 auto;opacity:.85;}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px);}
.nav-item.active{
  background:var(--primary-soft);
  color:var(--primary);
  box-shadow:inset 3px 0 0 0 var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff;}
.btn-primary:active{background:var(--primary-deep);transform:none;}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--line);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary-soft);}
.btn-soft{background:var(--primary-soft);color:var(--primary);}
.btn-soft:hover{background:#D8E6F7;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 面包屑 / 文章头 ---------- */
.page-hero{padding:32px 0 8px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.25;
  letter-spacing:-.5px;
  font-weight:700;
  color:var(--primary-deep);
  margin-bottom:18px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--ink-3);
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-soft);
  color:var(--primary);
  white-space:nowrap;
}
.badge-accent{background:rgba(23,128,122,.1);color:var(--accent);}
.badge-muted{background:var(--surface-2);color:var(--ink-2);}
.dot{width:4px;height:4px;border-radius:50%;background:var(--spark);display:inline-block;}

/* ---------- 主体双栏 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
  padding:32px 0 64px;
}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:32px;
  min-width:0;
}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--ink);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:14px;
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--primary-deep);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  bottom:8px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
}
.article-body h3{margin:30px 0 12px;font-size:20px;font-weight:600;color:var(--primary-deep);}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--primary-deep);}
.article-body p{margin:0 0 1.2em;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em;}
.article-body ul{list-style:none;padding-left:1.1em;}
.article-body ul > li{position:relative;margin:0 0 .6em;padding-left:14px;}
.article-body ul > li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.article-body ol{list-style:decimal;color:var(--ink);}
.article-body ol > li{margin:0 0 .6em;padding-left:4px;}
.article-body ol > li::marker{color:var(--accent);font-weight:700;}
.article-body a{
  color:var(--accent);
  border-bottom:1px solid rgba(23,128,122,.32);
}
.article-body a:hover{border-bottom-color:var(--accent);}
.article-body strong{color:var(--primary-deep);font-weight:700;}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--primary-soft);
  border-left:3px solid var(--primary);
  border-radius:var(--r-sm);
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:24px auto;
  border-radius:var(--r-sm);
  background:var(--surface-2);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--ink-3);
  text-align:center;
}
.article-body table{
  width:100%;
  margin:24px 0;
  border-collapse:collapse;
  font-size:15px;
  display:block;
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:var(--surface-2);color:var(--primary-deep);font-weight:600;}
.article-body tr:last-child td{border-bottom:none;}
.article-body tr td:last-child,.article-body tr th:last-child{border-right:none;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 24px;
  background:var(--surface-2);
  border:1px dashed var(--line);
  border-radius:var(--r-md);
}
.empty-icon{
  width:56px;
  height:56px;
  margin:0 auto 16px;
  border-radius:16px;
  display:grid;
  place-items:center;
  background:var(--surface);
  color:var(--ink-3);
  box-shadow:var(--sh-1);
}
.empty-state h2{font-size:20px;color:var(--primary-deep);margin-bottom:8px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:100px;display:grid;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:15px;
  font-weight:700;
  color:var(--primary-deep);
  margin-bottom:16px;
}
.side-title span.k{
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  background:rgba(23,128,122,.1);
  border-radius:999px;
  padding:2px 10px;
}
.side-list{display:grid;gap:2px;}
.side-list a{
  display:block;
  padding:12px 12px;
  border-radius:var(--r-sm);
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  transition:background var(--ease),color var(--ease);
}
.side-list a:hover{background:var(--primary-soft);color:var(--primary);}
.side-list .side-meta{display:block;font-size:12px;font-weight:400;color:var(--ink-3);margin-top:4px;}
.side-links{display:grid;gap:8px;}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:10px 14px;
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:600;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.side-links a:hover{background:var(--primary-soft);color:var(--primary);transform:translateX(2px);}
.share-group{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.tip-text{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7;}

/* ---------- 文末推荐 ---------- */
.section{padding:0 0 64px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--primary-deep);}
.section-head p{font-size:14px;color:var(--ink-2);margin-top:6px;}
.section-head .link-more{font-size:14px;font-weight:600;color:var(--accent);white-space:nowrap;}
.section-head .link-more:hover{text-decoration:underline;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.content-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E2F1;}
.thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-2);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.content-card:hover .thumb img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--primary-deep);}
.content-card:hover .card-body h3{color:var(--accent);}
.card-body p{font-size:15px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-top:auto;
  font-size:13px;
  color:var(--ink-3);
}
.card-foot .go{color:var(--accent);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  margin-bottom:64px;
}
.cta-band h2{font-size:22px;color:var(--primary-deep);margin-bottom:6px;}
.cta-band p{font-size:14px;color:var(--ink-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:#D8E2F0;padding:64px 0 28px;margin-top:8px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:36px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand-text{color:#fff;}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:#A9BCD8;max-width:34em;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A9BCD8;}
.footer-col a:hover{color:var(--spark);text-decoration:underline;}
.footer-contact li{font-size:14px;color:#A9BCD8;line-height:1.7;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:#8FA6C6;
}
.footer-bottom a{color:#C9D8EC;}
.footer-bottom a:hover{color:var(--spark);text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px;}
}
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;gap:12px;}
  .nav-links{order:3;width:100%;flex:1 0 100%;}
  .nav-actions{margin-left:auto;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .site-header{padding:10px 0;}
  .page-hero{padding:20px 0 4px;}
  .article-card{padding:22px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:24px;margin-bottom:48px;}
  .section{padding-bottom:48px;}
  .footer-grid{grid-template-columns:1fr;}
  .share-group{grid-template-columns:1fr;}
}
@media (max-width:519px){
  .brand{font-size:15px;}
  .brand-mark{width:26px;height:26px;border-radius:8px;}
  .nav-item{height:40px;padding:0 12px;font-size:13px;}
  .btn-sm{height:36px;padding:0 12px;font-size:13px;}
  .article-title{font-size:24px;}
  .article-card{padding:18px;}
  .article-body p{margin-bottom:1em;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#EDF2F9;
  --primary:#1E3A6E;
  --primary-deep:#14294F;
  --primary-soft:#E6EEF9;
  --accent:#17807A;
  --accent-soft:#DFF0EE;
  --spark:#E2A13C;
  --ink:#14202E;
  --ink-2:#5A6B80;
  --ink-3:#8A99AC;
  --line:#E3E9F2;
  --danger:#C2402F;
  --success:#1F8A57;
  --sh-1:0 1px 2px rgba(20,41,79,.06);
  --sh-2:0 6px 18px rgba(20,41,79,.08);
  --sh-3:0 18px 40px rgba(20,41,79,.12);
  --r-panel:20px;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --t:200ms cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:14px 0 10px;
  background:linear-gradient(to bottom,var(--bg) 62%,rgba(246,248,251,0));
}
.nav-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-3);
  display:flex;align-items:center;gap:18px;
  padding:11px 16px;
  transition:box-shadow var(--t), padding var(--t);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  flex:none;color:var(--primary);
}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;flex:none;
  box-shadow:var(--sh-1);
  transition:transform var(--t),background var(--t);
}
.brand:hover .brand-mark{transform:rotate(-8deg);background:var(--primary-deep)}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-item svg{opacity:.8;transition:opacity var(--t)}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
.nav-item:hover svg{opacity:1}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface-2);color:var(--primary);
  align-items:center;justify-content:center;
  transition:background var(--t),color var(--t);
}
.nav-toggle:hover{background:var(--primary-soft)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  text-decoration:none;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);background:var(--primary-deep)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:#cfdcee;color:var(--primary)}
.btn-soft{background:var(--primary-soft);color:var(--primary);border-color:transparent}
.btn-soft:hover{background:#d8e6f7;color:var(--primary);transform:translateY(-1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
  padding-bottom:18px;
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .current{color:var(--ink-3)}

/* ============ Hero ============ */
.hero{padding:26px 0 64px}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-soft);color:#116460;
  font-size:12.5px;font-weight:600;
}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;letter-spacing:-.5px;font-weight:700;
  color:var(--primary-deep);
  margin:16px 0 14px;
}
.hero-sub{
  font-size:16.5px;line-height:1.85;color:var(--ink-2);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  background:var(--surface-2);
  box-shadow:var(--sh-2);border:1px solid var(--line);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.22,.61,.36,1)}
.hero-media:hover img{transform:scale(1.03)}
.media-strip{
  position:absolute;left:16px;bottom:16px;right:16px;
  display:flex;align-items:center;gap:9px;
  padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(20,41,79,.86);
  color:#E8EFF9;font-size:13px;font-weight:500;
  backdrop-filter:blur(2px);
}
.pulse-dot{
  width:8px;height:8px;border-radius:50%;background:#E2574C;flex:none;
  box-shadow:0 0 0 0 rgba(226,87,76,.55);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(226,87,76,.55)}
  70%{box-shadow:0 0 0 8px rgba(226,87,76,0)}
  100%{box-shadow:0 0 0 0 rgba(226,87,76,0)}
}

/* ============ 状态条 ============ */
.status-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:18px 22px;
  margin-bottom:0;
}
.status-item{display:flex;align-items:flex-start;gap:12px}
.status-icon{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.status-item strong{display:block;font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.5}
.status-item span{display:block;font-size:13px;color:var(--ink-3);line-height:1.65}

/* ============ 板块 ============ */
.section{padding:0 0 96px}
.section-head{max-width:720px;margin-bottom:34px}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;
  letter-spacing:.12em;color:var(--accent);
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,31px);line-height:1.35;font-weight:700;
  color:var(--primary-deep);letter-spacing:-.3px;
}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ============ 步骤卡 ============ */
.step-list{display:flex;flex-direction:column;gap:24px}
.step-card{
  display:grid;grid-template-columns:1fr;
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px 30px;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#d5e0ee}
.step-card.has-media{grid-template-columns:1.35fr .65fr;gap:32px;align-items:center}
.step-main{display:flex;gap:22px;align-items:flex-start}
.step-num{
  font-size:44px;line-height:1;font-weight:700;
  color:var(--spark);
  font-variant-numeric:tabular-nums;
  flex:none;letter-spacing:-2px;padding-top:2px;
}
.step-body h3{
  font-size:19px;font-weight:600;color:var(--primary-deep);
  line-height:1.4;margin-bottom:8px;transition:color var(--t);
}
.step-card:hover .step-body h3{color:var(--accent)}
.step-body p{color:var(--ink-2);font-size:15px;line-height:1.85}
.step-points{margin-top:14px;display:flex;flex-direction:column;gap:7px}
.step-points li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--ink-2);line-height:1.75;
}
.step-points li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.step-media{
  border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);
  aspect-ratio:16/10;border:1px solid var(--line);
}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.22,.61,.36,1)}
.step-card:hover .step-media img{transform:scale(1.03)}

/* ============ 深色检查面板 ============ */
.dark-panel{
  position:relative;
  border-radius:var(--r-panel);
  padding:44px 40px;
  color:#D9E3F1;
  overflow:hidden;
  background-image:linear-gradient(115deg,rgba(20,41,79,.96),rgba(20,41,79,.88)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  box-shadow:var(--sh-3);
}
.dark-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(23,128,122,.22);pointer-events:none;
}
.dark-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.dark-head h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;color:#fff;line-height:1.35;
}
.dark-sub{color:#B9C8DD;font-size:15px;line-height:1.85;max-width:56em;margin-bottom:30px}
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative;z-index:1}
.check-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:20px 20px 18px;
  transition:background var(--t),transform var(--t),border-color var(--t);
}
.check-item:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);border-color:rgba(255,255,255,.24)}
.check-item .idx{
  display:inline-block;font-size:12.5px;font-weight:700;color:var(--spark);
  letter-spacing:.1em;margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:16.5px;font-weight:600;color:#fff;margin-bottom:8px;line-height:1.5}
.check-item p{font-size:14px;line-height:1.8;color:#B9C8DD}

/* ============ FAQ ============ */
.faq-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;text-align:left;
  padding:22px 26px;color:var(--ink);
  font-size:16px;font-weight:600;line-height:1.6;
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:var(--primary-soft);color:var(--primary)}
.faq-icon{
  position:relative;width:20px;height:20px;flex:none;
  border-radius:6px;border:1px solid var(--line);
  background:var(--surface-2);
  transition:background var(--t),border-color var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
  transform:translate(-50%,-50%);transition:transform var(--t),background var(--t);
}
.faq-icon::before{width:10px;height:1.5px}
.faq-icon::after{width:1.5px;height:10px}
.faq-item.open .faq-icon{background:var(--primary);border-color:var(--primary)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#fff}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms cubic-bezier(.22,.61,.36,1);
}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{
  padding:0 26px 24px;color:var(--ink-2);font-size:15px;line-height:1.85;max-width:60em;
}

/* ============ 双卡入口 ============ */
.split-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.entry-card{
  display:grid;grid-template-columns:1fr 132px;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;color:var(--ink);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.entry-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#d5e0ee;color:var(--ink)}
.entry-card h3{
  font-size:18px;font-weight:600;color:var(--primary-deep);
  margin-bottom:8px;display:flex;align-items:center;gap:8px;transition:color var(--t);
}
.entry-card:hover h3{color:var(--accent)}
.entry-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.entry-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13.5px;font-weight:600;color:var(--accent);
}
.entry-more svg{transition:transform var(--t)}
.entry-card:hover .entry-more svg{transform:translateX(4px)}
.entry-thumb{
  border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);
  aspect-ratio:16/10;border:1px solid var(--line);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.22,.61,.36,1)}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}

/* ============ 收藏 CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--primary-soft);
  border:1px solid #d7e4f5;
  border-radius:var(--r-panel);
  padding:32px 36px;
}
.cta-band h2{
  font-size:clamp(20px,2.2vw,25px);font-weight:700;color:var(--primary-deep);line-height:1.4;
}
.cta-band p{margin-top:8px;color:var(--ink-2);font-size:14.5px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cta-note{font-size:13px;color:var(--accent);font-weight:600;min-height:20px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--primary-deep);color:#D8E2F0;
  padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-brand:hover{color:var(--spark)}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:var(--spark)}
.footer-brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BCD6;max-width:32em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#C3D2E6;transition:color var(--t)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{font-size:14px;color:#A9BCD6;line-height:1.75}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#93A8C4;
}
.footer-bottom a{color:#C3D2E6}
.footer-bottom a:hover{color:var(--spark)}

/* ============ 移动抽屉 ============ */
.mobile-drawer{position:fixed;inset:0;z-index:200;display:none}
.mobile-drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(20,41,79,.35)}
.drawer-panel{
  position:relative;margin:64px 16px 0;
  background:var(--surface);border-radius:var(--r-panel);
  box-shadow:var(--sh-3);padding:18px;
  animation:drawerIn 220ms cubic-bezier(.22,.61,.36,1);
}
@keyframes drawerIn{from{transform:translateY(-12px);opacity:0}to{transform:translateY(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-head .brand-text{font-size:16px}
.drawer-close{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--primary);font-size:18px;line-height:1;
}
.drawer-close:hover{background:var(--primary-soft)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.drawer-item{
  display:flex;align-items:center;justify-content:center;
  height:46px;border-radius:var(--r-sm);background:var(--surface-2);
  color:var(--ink-2);font-size:14px;font-weight:500;
}
.drawer-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.drawer-cta{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links{gap:4px}
  .nav-item{padding:0 11px;font-size:13.5px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding-bottom:72px}
  .hero{padding:20px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{aspect-ratio:16/9}
  .status-strip{grid-template-columns:1fr;gap:14px;padding:18px}
  .check-grid{grid-template-columns:1fr 1fr}
  .step-card.has-media{grid-template-columns:1fr;gap:22px}
  .step-media{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .dark-panel{padding:34px 26px}
  .split-cards{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding-bottom:56px}
  .hero{padding:14px 0 44px}
  .brand-text{font-size:15.5px}
  .nav-card{padding:10px 12px;gap:10px}
  .nav-actions .btn{display:none}
  .step-card{padding:22px 20px}
  .step-main{gap:14px}
  .step-num{font-size:34px;letter-spacing:-1px}
  .step-body h3{font-size:17.5px}
  .check-grid{grid-template-columns:1fr}
  .dark-panel{padding:28px 20px;border-radius:var(--r-card)}
  .entry-card{grid-template-columns:1fr;gap:16px}
  .entry-thumb{aspect-ratio:16/9;order:-1}
  .cta-band{padding:24px 20px;border-radius:var(--r-card)}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a p{padding:0 18px 20px;font-size:14.5px}
  .site-footer{padding:48px 0 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .status-strip{border-radius:var(--r-card)}
}
@media (max-width:480px){
  h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .btn{height:42px;padding:0 16px;font-size:14px}
  .hero-actions{gap:10px}
  .drawer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#EDF2F9;
  --primary:#1E3A6E;
  --primary-deep:#14294F;
  --primary-soft:#E6EEF9;
  --accent:#17807A;
  --spark:#E2A13C;
  --ink:#14202E;
  --ink-2:#5A6B80;
  --ink-3:#8A99AC;
  --line:#E3E9F2;
  --success:#1F8A57;
  --warning:#C98A16;
  --danger:#C2402F;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,41,79,.06);
  --sh-2:0 6px 18px rgba(20,41,79,.08);
  --sh-3:0 18px 40px rgba(20,41,79,.12);
  --ease:200ms cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0 6px;
  background:linear-gradient(180deg,rgba(246,248,251,.96) 0%,rgba(246,248,251,.88) 70%,rgba(246,248,251,0) 100%);
  transition:padding var(--ease);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:12px 16px;
  transition:padding var(--ease),box-shadow var(--ease);
}
.site-header.stuck{padding-top:8px;}
.site-header.stuck .nav-panel{padding:8px 16px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--primary-deep);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--primary-deep);}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  background:var(--primary);
  color:#fff;
  display:inline-grid;
  place-items:center;
  flex:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.nav-links{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  flex:1;
  min-width:0;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item svg{flex:none;opacity:.86;}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:3px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:none;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{background:var(--primary-deep);transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary);border-color:#CBDCEE;}
.btn-soft{background:var(--surface-2);color:var(--primary);}
.btn-soft:hover{background:var(--primary-soft);color:var(--primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

.nav-burger{
  display:none;
  width:42px;height:42px;
  border-radius:11px;
  background:var(--surface-2);
  color:var(--primary);
  align-items:center;
  justify-content:center;
  transition:background var(--ease);
}
.nav-burger:hover{background:var(--primary-soft);}

/* 移动抽屉 */
.mobile-drawer{display:none;position:fixed;inset:0;z-index:120;}
.mobile-drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(20,41,79,.35);}
.drawer-panel{
  position:relative;
  margin:12px;
  background:var(--surface);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:16px;
  animation:drawerIn 220ms cubic-bezier(.22,.61,.36,1);
}
@keyframes drawerIn{from{transform:translateY(-12px);opacity:.4;}to{transform:translateY(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 14px;font-weight:700;color:var(--primary-deep);}
.drawer-close{
  width:34px;height:34px;border-radius:10px;background:var(--surface-2);
  color:var(--primary);font-size:20px;line-height:1;display:grid;place-items:center;
}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-card{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px;border-radius:var(--r-sm);background:var(--surface-2);
  color:var(--ink-2);font-size:14px;font-weight:500;
}
.drawer-card.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:14px;}

/* ============ 通用板块 ============ */
main{display:block;}
.section{padding:56px 0;}
.section-tight{padding:36px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.4px;color:var(--primary-deep);}
.section-sub{margin-top:8px;color:var(--ink-2);font-size:15px;max-width:640px;}
.section-link{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.section-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:#C3CEDA;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .current{color:var(--ink-3);}

/* ============ Hero ============ */
.page-hero{padding:18px 0 8px;}
.hero-card{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.hero-body{padding:36px 36px 34px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-title{
  margin-top:16px;
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--primary-deep);
}
.hero-lead{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;max-width:520px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  height:34px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);
  font-size:13px;font-weight:500;
}
.meta-pill svg{color:var(--accent);}
.hero-figure{position:relative;background:var(--surface-2);min-height:100%;}
.hero-figure img{width:100%;height:100%;object-fit:cover;min-height:280px;}
.hero-figure .figure-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(20,41,79,.86);
  color:#EAF1FA;
  border-radius:12px;
  padding:10px 14px;
  font-size:12px;
  line-height:1.6;
  backdrop-filter:blur(2px);
}
.hero-figure .figure-tag strong{display:block;font-size:14px;font-weight:600;color:#fff;}

/* ============ 状态条（深色面板） ============ */
.status-panel{
  background:var(--primary-deep);
  border-radius:var(--r-md);
  padding:20px 24px;
  color:#D8E2F0;
  display:flex;
  align-items:center;
  gap:28px;
  flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.status-lead{display:flex;align-items:center;gap:12px;flex:none;}
.status-lead .pulse{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(23,128,122,.24);}
.status-lead strong{color:#fff;font-size:15px;font-weight:600;}
.status-lead span{font-size:12px;color:#9FB3CC;}
.status-items{display:flex;flex:1;gap:14px;flex-wrap:wrap;justify-content:flex-end;}
.status-item{
  display:flex;align-items:center;gap:9px;
  padding:8px 14px;
  border-radius:10px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:#C7D5E6;
  white-space:nowrap;
}
.status-item .dot{width:7px;height:7px;border-radius:50%;background:var(--success);flex:none;}
.status-item .dot.pending{background:var(--spark);}
.status-item b{color:#fff;font-weight:600;}

/* ============ 筛选标签 ============ */
.filter-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin:32px 0 24px;
}
.chip{
  height:38px;
  padding:0 18px;
  border-radius:999px;
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.chip:hover{background:var(--primary-soft);color:var(--primary);}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;}
.chip:active{transform:scale(.98);}

/* ============ 宽条目列表 ============ */
.news-list{display:grid;gap:16px;}
.news-item{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3E0EE;}
.news-thumb{
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--surface-2);
  aspect-ratio:16/10;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.22,.61,.36,1);}
.news-item:hover .news-thumb img{transform:scale(1.03);}
.news-body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 4px 0;min-width:0;}
.news-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 11px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;
}
.badge-accent{background:rgba(23,128,122,.12);color:var(--accent);}
.badge-grey{background:var(--surface-2);color:var(--ink-2);}
.news-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--primary-deep);transition:color var(--ease);}
.news-title a{color:inherit;}
.news-item:hover .news-title{color:var(--accent);}
.news-excerpt{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:8px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}
.news-foot .misc{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;}
.news-foot .sep{width:3px;height:3px;border-radius:50%;background:#C3CEDA;}
.news-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);}
.news-more:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.news-more svg{transition:transform var(--ease);}
.news-more:hover svg{transform:translateX(4px);}

/* ============ 热门排行 ============ */
.rank-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:8px 24px 12px;
}
.rank-list li + li{border-top:1px solid var(--line);}
.rank-row{
  display:grid;
  grid-template-columns:40px minmax(0,1fr) auto;
  align-items:center;
  gap:16px;
  padding:16px 4px;
  transition:background var(--ease);
  border-radius:10px;
}
.rank-row:hover{background:var(--primary-soft);}
.rank-no{
  font-size:22px;
  font-weight:700;
  color:var(--spark);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.rank-title{font-size:16px;font-weight:600;color:var(--primary-deep);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color var(--ease);}
.rank-row:hover .rank-title{color:var(--accent);}
.rank-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ============ 分类速览 ============ */
.link-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.link-card{
  display:flex;
  align-items:flex-start;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3E0EE;color:inherit;}
.link-icon{
  width:44px;height:44px;flex:none;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;
}
.link-card h3{font-size:17px;font-weight:600;color:var(--primary-deep);transition:color var(--ease);}
.link-card:hover h3{color:var(--accent);}
.link-card p{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.link-arrow{margin-left:auto;color:var(--ink-3);flex:none;align-self:center;transition:transform var(--ease),color var(--ease);}
.link-card:hover .link-arrow{transform:translateX(4px);color:var(--accent);}

/* ============ 收藏分享 CTA ============ */
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  background:var(--primary-soft);
  border:1px solid #D5E3F5;
  border-radius:var(--r-lg);
  padding:28px 32px;
}
.cta-card h2{font-size:22px;font-weight:700;color:var(--primary-deep);letter-spacing:-.3px;}
.cta-card p{margin-top:6px;font-size:14px;color:var(--ink-2);}
.cta-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--line);
  color:var(--primary);
  display:inline-grid;place-items:center;
  transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:var(--surface-2);color:var(--accent);transform:translateY(-1px);border-color:#CBDCEE;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;
  background:var(--primary-deep);
  color:#D8E2F0;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:18px;
}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.2);}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:#9FB3CC;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#C7D5E6;transition:color var(--ease);}
.footer-col a:hover{color:var(--spark);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{font-size:14px;color:#9FB3CC;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8FA5C0;
}
.footer-bottom a{color:#C7D5E6;}
.footer-bottom a:hover{color:var(--spark);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .nav-item{padding:0 12px;font-size:13.5px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-panel{gap:12px;}
  .hero-card{grid-template-columns:1fr;}
  .hero-figure{min-height:220px;order:-1;}
  .hero-figure img{min-height:220px;max-height:260px;}
  .hero-body{padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:44px 0;}
  .section-title{font-size:26px;}
  .news-item{grid-template-columns:200px minmax(0,1fr);gap:18px;}
  .status-items{justify-content:flex-start;}
}

@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-actions .btn{display:none;}
  .brand{font-size:16px;}
  .hero-title{font-size:28px;}
  .hero-meta{gap:8px;}
  .meta-pill{height:32px;font-size:12px;padding:0 12px;}
  .news-item{grid-template-columns:1fr;gap:14px;padding:14px;}
  .news-thumb{aspect-ratio:16/9;}
  .news-title{font-size:17px;}
  .link-cards{grid-template-columns:1fr;}
  .cta-card{padding:22px 20px;}
  .cta-card h2{font-size:19px;}
  .rank-card{padding:4px 16px 8px;}
  .rank-row{grid-template-columns:32px minmax(0,1fr);gap:12px;padding:14px 2px;}
  .rank-time{grid-column:2;font-size:12px;}
  .rank-no{font-size:19px;}
  .status-panel{padding:16px 18px;gap:16px;}
  .status-items{gap:10px;}
  .status-item{font-size:12px;padding:7px 12px;}
  .section{padding:36px 0;}
  .section-title{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
  .site-footer{padding-top:44px;margin-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media (max-width:519px){
  .hero-body{padding:22px 18px;}
  .hero-title{font-size:25px;}
  .hero-lead{font-size:15px;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
  .filter-row{gap:8px;margin:24px 0 18px;}
  .btn{height:42px;padding:0 18px;font-size:14px;}
  .news-excerpt{font-size:14px;}
  .cta-actions .btn{flex:1 1 100%;}
  .cta-actions .icon-btn{width:42px;height:42px;}
}

/* roulang page: category3 */
:root{
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#EDF2F9;
  --primary:#1E3A6E;
  --primary-deep:#14294F;
  --primary-soft:#E6EEF9;
  --accent:#17807A;
  --accent-soft:#E2F1EF;
  --spark:#E2A13C;
  --ink:#14202E;
  --ink-2:#5A6B80;
  --ink-3:#8A99AC;
  --line:#E3E9F2;
  --danger:#C2402F;
  --success:#1F8A57;
  --r-nav:20px;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,41,79,.06);
  --sh-2:0 6px 18px rgba(20,41,79,.08);
  --sh-3:0 18px 40px rgba(20,41,79,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:64px 0}
.section--tight{padding:40px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.3px}
.section-head p{margin-top:8px;color:var(--ink-2);font-size:15px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);margin-bottom:10px}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--spark);border-radius:2px}

/* ---------- 顶部卡片化导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0 0}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh-3);
  padding:10px 14px;
  transition:box-shadow .2s var(--ease),padding .2s var(--ease);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--primary);color:#fff;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 15px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  background:var(--surface-2);
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.nav-item svg{flex:0 0 auto;opacity:.8}
.nav-item:hover{background:var(--primary-soft);color:var(--primary)}
.nav-item.active{
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:600;
  box-shadow:inset 3px 0 0 var(--accent);
}
.nav-item.active svg{opacity:1}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface-2);color:var(--primary);
  align-items:center;justify-content:center;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--primary-soft)}
.mobile-drawer{display:none;margin-top:10px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-3);padding:14px}
.mobile-drawer.open{display:block}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mobile-card{
  display:flex;align-items:center;gap:9px;
  padding:12px;border-radius:12px;background:var(--surface-2);
  font-size:14px;color:var(--ink-2);font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.mobile-card:hover{background:var(--primary-soft);color:var(--primary)}
.mobile-card.active{background:var(--primary-soft);color:var(--primary);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.mobile-cta{margin-top:12px}

/* ---------- 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;border:1px solid transparent;
  white-space:nowrap;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:#C9D8EE;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:#EAF1FB;transform:translateY(-1px);color:var(--primary)}
.btn-outline-light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.34);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 分类页窄幅首屏 ---------- */
.hero-wrap{padding:26px 0 8px}
.hero-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-nav);
  background-color:var(--primary-deep);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  padding:42px 44px;
  box-shadow:var(--sh-3);
}
.hero-panel::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(20,41,79,.96) 0%,rgba(20,41,79,.84) 56%,rgba(20,41,79,.46) 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.5fr);gap:40px;align-items:center}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:#A9BDD8;margin-bottom:16px}
.crumbs a{color:#D8E2F0}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:rgba(216,226,240,.42)}
.crumbs .current{color:#8FA6C6}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  height:26px;padding:0 12px;border-radius:999px;
  background:rgba(23,128,122,.22);
  border:1px solid rgba(23,128,122,.5);
  color:#8FE0D9;font-size:12.5px;font-weight:600;
  margin-bottom:16px;
}
.hero-title{color:#fff;font-size:clamp(27px,3.5vw,42px);font-weight:700;line-height:1.25;letter-spacing:-.5px}
.hero-sub{margin-top:14px;color:#C6D4E8;font-size:16px;line-height:1.8;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-thumb{border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.18);box-shadow:var(--sh-3);background:var(--surface-2)}
.hero-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 快捷排查卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.quick-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D2DEEE}
.quick-icon{
  width:40px;height:40px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);
}
.quick-card h3{font-size:17px;font-weight:600;line-height:1.5}
.quick-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.quick-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);margin-top:auto}
.quick-link:hover{color:var(--primary)}
.quick-link svg{transition:transform .2s var(--ease)}
.quick-card:hover .quick-link svg{transform:translateX(4px)}

/* ---------- 支持双栏 ---------- */
.support-layout{display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:28px;align-items:start}
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:30px;
}
.faq-group + .faq-group{margin-top:30px;padding-top:28px;border-top:1px solid var(--line)}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:600;color:var(--primary);
  margin-bottom:8px;
}
.faq-group-title::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--accent)}
.faq-group-title .count{
  margin-left:auto;font-size:12px;font-weight:600;color:var(--ink-3);
  background:var(--surface-2);border-radius:999px;padding:2px 10px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 2px;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q span:first-child{flex:1}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;margin-top:5px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease),background .2s var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-icon::before{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 34px 20px 2px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- 右侧表单 ---------- */
.support-side{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:18px}
.form-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px;
}
.form-card h2{font-size:19px;font-weight:700;line-height:1.4;color:var(--primary)}
.form-card .form-lead{margin-top:6px;font-size:13.5px;color:var(--ink-2);line-height:1.75}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;
  padding:0 12px;height:44px;font-size:15px;color:var(--ink);
  background:#fff;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:108px;padding:10px 12px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#AEBBCB}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(30,58,110,.12);
}
.field.error input,.field.error textarea{border-color:var(--danger)}
.field.error input:focus,.field.error textarea:focus{box-shadow:0 0 0 3px rgba(194,64,47,.14)}
.field-error{display:block;margin-top:5px;font-size:13px;color:var(--danger);min-height:0;line-height:1.6}
.form-status{margin-top:12px;font-size:13.5px;line-height:1.7;display:none}
.form-status.show{display:block}
.form-status.ok{color:var(--success)}
.form-status.bad{color:var(--danger)}
.form-note{margin-top:12px;font-size:12.5px;color:var(--ink-3);line-height:1.7}
.contact-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 24px;
}
.contact-card h3{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:10px}
.contact-card ul li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--ink-2);line-height:1.75;padding:6px 0;
}
.contact-card ul li + li{border-top:1px dashed var(--line)}
.contact-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;margin-top:9px}

/* ---------- 深色数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  background:var(--primary-deep);
  border-radius:var(--r-card);
  padding:30px 32px;
  gap:24px;
  box-shadow:var(--sh-2);
}
.stat-item{display:flex;flex-direction:column;gap:4px;position:relative;padding-left:18px}
.stat-item::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:rgba(226,161,60,.75);
}
.stat-num{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff;line-height:1.3;font-variant-numeric:tabular-nums;letter-spacing:-.3px}
.stat-label{font-size:14px;color:#A9BDD8;line-height:1.7}

/* ---------- 收藏分享 ---------- */
.share-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:30px 32px;
  border-left:4px solid var(--accent);
}
.share-bar h2{font-size:21px;font-weight:700;line-height:1.4;color:var(--primary)}
.share-bar p{margin-top:6px;font-size:14.5px;color:var(--ink-2);line-height:1.75}
.share-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:#D8E2F0;margin-top:72px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:var(--spark)}
.footer-brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.2px}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BDD8;max-width:330px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:#C6D4E8;transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--spark);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{font-size:14px;color:#C6D4E8;line-height:1.8;margin-bottom:10px}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8FA6C6;flex-wrap:wrap;
}
.footer-bottom a{color:#C6D4E8}
.footer-bottom a:hover{color:var(--spark);text-decoration:underline;text-underline-offset:3px}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .support-layout{grid-template-columns:minmax(0,1fr) 330px;gap:22px}
  .nav-item{padding:0 12px;font-size:14px}
}
@media (max-width:960px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-panel{padding:10px 12px;gap:12px}
  .nav-actions .btn-sm{display:none}
  .hero-panel{padding:34px 30px}
  .hero-inner{grid-template-columns:1fr;gap:0}
  .hero-thumb{display:none}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .support-layout{grid-template-columns:1fr}
  .support-side{position:static;top:auto}
  .stat-bar{grid-template-columns:1fr;gap:18px;padding:26px 24px}
  .share-bar{flex-direction:column;align-items:flex-start;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .section--tight{padding:30px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .quick-grid{grid-template-columns:1fr}
  .panel{padding:22px}
  .hero-panel{padding:28px 22px}
  .hero-sub{font-size:15px}
  .faq-q{font-size:15px;padding:16px 2px}
  .faq-a p{padding-right:10px;font-size:14.5px}
  .site-footer{margin-top:52px;padding-top:48px}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .hero-actions .btn{flex:1 1 auto}
  .brand-text{font-size:15.5px}
  .mobile-grid{grid-template-columns:1fr}
  .stat-bar{padding:22px 20px}
  .share-bar{padding:24px 20px}
  .form-card,.contact-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .share-actions{width:100%}
  .share-actions .btn{flex:1 1 auto}
}
@media (max-width:400px){
  .hero-title{font-size:24px}
  .btn{padding:0 16px;font-size:14.5px}
}