/* roulang page: index */
:root{
  --primary:#1B4D6B;
  --primary-dark:#143C54;
  --accent:#E08A3C;
  --accent-soft:rgba(224,138,60,.12);
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --border:#E3EAF0;
  --text:#2C3A45;
  --muted:#6B7C89;
  --primary-soft:#EEF4F8;
  --primary-hover:#F1F6FA;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(27,77,107,.08);
  --shadow-2:0 14px 34px rgba(27,77,107,.14);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-dark)}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--card);border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:22px 16px 20px;z-index:60;
  overflow-y:auto;
}
.main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 侧栏品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;padding:0 6px 20px;border-bottom:1px solid var(--border)}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.5px;line-height:1.1;text-align:center;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:14px;font-weight:700;color:var(--primary-dark);line-height:1.35;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--muted);line-height:1.5;letter-spacing:.3px}

/* ---------- 侧栏导航 ---------- */
.side-nav{margin-top:18px;display:flex;flex-direction:column;gap:4px}
.nav-label{
  font-size:11px;letter-spacing:.12em;color:var(--muted);
  text-transform:uppercase;padding:0 10px;margin-bottom:6px;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:42px;padding:8px 12px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.nav-item i{font-size:15px;width:18px;text-align:center;flex:none}
.nav-item:hover{background:var(--primary-hover);color:var(--primary)}
.nav-item.active{background:var(--primary-hover);color:var(--primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:3px;background:var(--accent);
}
.side-card{
  margin-top:auto;padding:16px;border-radius:var(--radius-card);
  background:var(--primary-soft);border:1px solid var(--border);
}
.side-card h4{font-size:13px;font-weight:700;color:var(--primary-dark);margin-bottom:6px}
.side-card p{font-size:12px;line-height:1.7;color:var(--muted);margin-bottom:12px}
.side-card .btn{width:100%;justify-content:center}
.side-card-note{display:block;margin-top:10px;font-size:11.5px;color:var(--muted);line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-hover);transform:translateY(-1px)}
.btn-soft{background:var(--primary-soft);color:var(--primary);border-color:transparent}
.btn-soft:hover{background:#E4EEF5}
.btn-sm{padding:8px 16px;font-size:13.5px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- 徽章 / 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:500;line-height:1.6;
}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.7;
  background:var(--primary-soft);color:var(--primary);
}
.badge-accent{background:var(--accent-soft);color:#B4681F}

/* ---------- 顶部状态条 ---------- */
.status-bar{
  background:var(--primary-soft);border-bottom:1px solid var(--border);
}
.status-inner{
  display:flex;align-items:center;gap:16px;min-height:62px;padding:10px 0;flex-wrap:wrap;
}
.status-dot{
  width:10px;height:10px;border-radius:50%;background:var(--accent);flex:none;
  box-shadow:0 0 0 0 rgba(224,138,60,.55);animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(224,138,60,.45)}
  70%{box-shadow:0 0 0 10px rgba(224,138,60,0)}
  100%{box-shadow:0 0 0 0 rgba(224,138,60,0)}
}
.status-text{font-size:14px;font-weight:600;color:var(--primary-dark)}
.clock{display:flex;align-items:center;gap:6px}
.clock-block{
  width:44px;height:44px;border-radius:8px;background:#fff;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:var(--primary-dark);
  font-variant-numeric:tabular-nums;box-shadow:var(--shadow-1);
}
.clock-sep{font-size:16px;font-weight:700;color:var(--muted)}
.status-link{
  margin-left:auto;font-size:13.5px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.status-link:hover{color:var(--primary-dark);border-color:var(--primary-dark)}

/* ---------- 区块通用 ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--primary-dark);
  line-height:1.35;letter-spacing:.2px;
}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:640px}
.section-head .head-link{
  font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;
  white-space:nowrap;border-bottom:1px solid transparent;transition:border-color .2s ease;
}
.section-head .head-link:hover{border-color:var(--primary)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.12em;font-weight:700;
  color:var(--accent);text-transform:uppercase;margin-bottom:10px;
}

/* ---------- Hero ---------- */
.hero{padding:52px 0 8px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;
  color:var(--primary-dark);letter-spacing:.2px;
}
.hero h1 .hl{color:var(--primary);position:relative;white-space:nowrap}
.hero-sub{
  margin-top:18px;font-size:16.5px;line-height:1.8;color:var(--muted);max-width:560px;
}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{position:relative;padding:0 18px 18px 0}
.hero-figure::after{
  content:"";position:absolute;right:0;bottom:0;width:78%;height:78%;
  background:#E3EAF0;border-radius:var(--radius-card);z-index:0;
}
.hero-figure img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);background:#E3EAF0;
}

/* ---------- 卖点：不等宽三块 ---------- */
.feature-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:20px}
.feature-main{
  background:rgba(27,77,107,.06);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;justify-content:center;
}
.feature-num{
  font-size:40px;font-weight:700;color:var(--accent);line-height:1.1;
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.feature-main h3{font-size:19px;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.feature-main p{font-size:14.5px;color:var(--muted);line-height:1.8}
.feature-side{display:flex;flex-direction:column;gap:20px}
.feature-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.feature-card i{font-size:20px;color:var(--primary);margin-bottom:10px;display:block}
.feature-card h3{font-size:17px;font-weight:600;color:var(--primary-dark);margin-bottom:6px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 操作路径 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.flow-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .24s ease,box-shadow .24s ease;
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.flow-index{
  width:40px;height:40px;border-radius:50%;border:2px solid var(--primary);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;margin-bottom:14px;background:#fff;
  font-variant-numeric:tabular-nums;
}
.flow-card h3{font-size:17.5px;font-weight:600;color:var(--primary-dark);margin-bottom:8px}
.flow-card p{font-size:14px;color:var(--muted);line-height:1.78}
.flow-card a{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13.5px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;transition:border-color .2s ease;
}
.flow-card a:hover{border-color:var(--primary)}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:16px}
.wall-item{
  position:relative;border-radius:12px;overflow:hidden;background:#E3EAF0;
  box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.wall-item:hover{box-shadow:var(--shadow-2)}
.wall-item:hover img{transform:scale(1.03)}
.wall-item:nth-child(1){grid-column:span 2;grid-row:span 2}
.wall-item:nth-child(4){grid-row:span 2}
.wall-cap{
  position:absolute;left:0;right:0;bottom:0;height:40px;
  display:flex;align-items:center;padding:0 14px;
  background:rgba(255,255,255,.88);color:var(--primary);font-size:13px;font-weight:600;
  backdrop-filter:blur(2px);
}

/* ---------- 最新信息列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-cover{display:block;aspect-ratio:16/9;background:#E3EAF0;overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--primary-dark)}
.post-body h3 a{
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
  text-underline-offset:3px;
}
.post-body h3 a:hover{color:var(--primary);border-color:var(--primary)}
.post-body p{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.post-meta a{font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.post-meta a:hover{color:var(--primary-dark)}
.empty-state{
  grid-column:1/-1;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:48px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:38px;color:#A9BCC9;display:block;margin-bottom:14px}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px}

/* ---------- CTA + 表单 ---------- */
.cta-box{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:36px;display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:start;
  box-shadow:var(--shadow-1);
}
.cta-box h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--primary-dark);line-height:1.4;margin-bottom:12px}
.cta-box > div > p{font-size:14.5px;color:var(--muted);line-height:1.8}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;gap:10px;font-size:15px;color:var(--text);line-height:1.7;
}
.check-list i{color:var(--primary);font-size:15px;margin-top:5px;flex:none}
.form-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--primary-dark);margin-bottom:7px}
.field input,.field textarea{
  width:100%;min-height:44px;padding:11px 14px;
  font-family:inherit;font-size:14.5px;color:var(--text);
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-btn);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AABB7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(27,77,107,.18);
}
.form-note{font-size:12px;color:var(--muted);line-height:1.7;margin-top:10px}
.form-tip{
  display:none;margin-top:12px;padding:10px 12px;border-radius:8px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;line-height:1.7;
}
.form-tip.show{display:block}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1.6fr;gap:44px;align-items:start}
.faq-intro h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--primary-dark);line-height:1.4}
.faq-intro p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.8}
.faq-intro .rule{width:56px;height:3px;background:var(--accent);border-radius:2px;margin-top:22px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .2s ease;
}
.faq-item.open{box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--primary-dark);line-height:1.6;
}
.faq-q:hover{color:var(--primary)}
.faq-q .icon{color:var(--primary);font-size:14px;flex:none;transition:transform .24s ease}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{display:none;padding:0 20px 18px}
.faq-item.open .faq-a{display:block}
.faq-a .inner{
  background:var(--bg);border-radius:12px;padding:14px 16px;
  font-size:14px;line-height:1.8;color:var(--text);
}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-dark);color:#B9CCD9;margin-top:auto}
.footer-inner{max-width:1200px;margin:0 auto;padding:52px 32px 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px}
.footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.3px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);border-radius:12px}
.footer-brand strong{color:#fff;font-size:15px;font-weight:700;line-height:1.4}
.footer p{font-size:13px;line-height:1.85;color:#B9CCD9}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:13px;color:#B9CCD9;transition:color .2s ease;
  display:inline-flex;align-items:center;gap:6px;
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  margin-top:36px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#9CB4C4;
}

/* ---------- 移动端顶栏 / 抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--border);
  align-items:center;gap:12px;padding:0 14px;
  box-shadow:0 2px 10px rgba(27,77,107,.06);
}
.menu-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;flex:none;transition:background .2s ease;
}
.menu-btn:hover{background:var(--primary-hover)}
.topbar-brand{
  flex:1;min-width:0;font-size:14.5px;font-weight:700;color:var(--primary-dark);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.drawer{
  display:none;position:fixed;inset:0;background:#fff;z-index:90;
  flex-direction:column;padding:16px;overflow-y:auto;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.drawer-head strong{flex:1;font-size:14.5px;color:var(--primary-dark);line-height:1.4}
.drawer-nav{margin-top:16px;display:flex;flex-direction:column;gap:4px}
.drawer-nav .nav-item{min-height:44px}
.drawer-card{
  margin-top:auto;padding:16px;border-radius:var(--radius-card);
  background:var(--primary-soft);border:1px solid var(--border);
}
.drawer-card p{font-size:12.5px;color:var(--muted);line-height:1.7;margin-bottom:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .sidebar{display:none}
  .main{margin-left:0;padding-top:60px}
  .topbar{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{max-width:560px;padding:0 14px 14px 0}
  .feature-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:140px}
  .wall-item:nth-child(1){grid-column:span 2;grid-row:span 1}
  .wall-item:nth-child(4){grid-row:span 1}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .cta-box{grid-template-columns:1fr;gap:26px;padding:28px}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .section{padding:48px 0}
  .container{padding:0 20px}
}
@media (max-width:639px){
  .status-inner{gap:12px;padding:12px 0}
  .clock-block{width:36px;height:36px;font-size:15px}
  .status-text{font-size:13.5px}
  .status-link{margin-left:0;width:100%}
  .hero{padding:34px 0 4px}
  .hero-sub{font-size:15.5px}
  .flow-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr;grid-auto-rows:170px}
  .wall-item:nth-child(1){grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-inner{padding:40px 20px 0}
  .cta-box{padding:22px}
  .form-card{padding:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .faq-q{font-size:15px;padding:12px 16px}
  .faq-a{padding:0 16px 16px}
}

/* roulang page: article */
:root{
    --c-primary:#1B4D6B;
    --c-primary-dark:#143C54;
    --c-accent:#E08A3C;
    --c-bg:#F7F9FB;
    --c-card:#FFFFFF;
    --c-border:#E3EAF0;
    --c-text:#2C3A45;
    --c-muted:#6B7C89;
    --c-soft:#EEF4F8;
    --c-soft-2:#F1F6FA;
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-1:0 8px 24px rgba(27,77,107,.08);
    --shadow-2:0 14px 34px rgba(27,77,107,.14);
    --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}

  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

  body.page-body{
    margin:0;
    padding:0;
    font-family:var(--font-cn);
    font-size:15px;
    line-height:1.75;
    color:var(--c-text);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }

  body.page-body img{max-width:100%;display:block;}
  body.page-body a{color:inherit;text-decoration:none;}
  body.page-body button{font:inherit;color:inherit;cursor:pointer;}
  body.page-body h1,body.page-body h2,body.page-body h3,body.page-body h4{margin:0;}
  body.page-body ul,body.page-body ol{margin:0;padding:0;list-style:none;}

  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

  /* ============ 布局骨架 ============ */
  .app-shell{display:flex;align-items:stretch;min-height:100vh;}

  .main-area{
    flex:1 1 auto;
    min-width:0;
    display:flex;
    flex-direction:column;
    background:var(--c-bg);
  }

  /* ============ 左侧导航 ============ */
  .sidebar{
    width:240px;
    flex:0 0 240px;
    position:sticky;
    top:0;
    height:100vh;
    overflow-y:auto;
    background:#fff;
    border-right:1px solid var(--c-border);
    display:flex;
    flex-direction:column;
    padding:22px 16px 20px;
    z-index:90;
  }

  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    padding:0 4px 18px;
    margin-bottom:16px;
    border-bottom:1px solid var(--c-border);
  }

  .brand-mark{
    width:40px;
    height:40px;
    flex:0 0 40px;
    border-radius:11px;
    background:var(--c-primary);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
    font-weight:700;
    letter-spacing:.02em;
  }

  .brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0;}
  .brand-text strong{font-size:13.5px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;}
  .brand-text em{font-style:normal;font-size:11px;color:var(--c-muted);letter-spacing:.04em;margin-top:2px;}

  .nav-label{
    display:block;
    font-size:11px;
    font-weight:600;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:#9AACB8;
    margin:0 8px 10px;
  }

  .side-nav{display:flex;flex-direction:column;gap:2px;}

  .nav-item{
    position:relative;
    display:flex;
    align-items:center;
    gap:10px;
    padding:11px 12px;
    border-radius:10px;
    font-size:14px;
    font-weight:500;
    color:var(--c-muted);
    transition:background .18s ease,color .18s ease,padding-left .18s ease;
  }

  .nav-item i{width:18px;font-size:15px;text-align:center;flex:0 0 18px;}
  .nav-item span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

  .nav-item:hover{background:var(--c-soft-2);color:var(--c-primary);}

  .nav-item.active{background:var(--c-soft-2);color:var(--c-primary);font-weight:600;}
  .nav-item.active::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%);
    width:3px;height:18px;
    border-radius:0 3px 3px 0;
    background:var(--c-accent);
  }

  .side-cta{
    margin-top:auto;
    padding:16px;
    border-radius:14px;
    background:var(--c-soft);
  }

  .side-cta p{
    margin:0 0 12px;
    font-size:12.5px;
    line-height:1.7;
    color:var(--c-muted);
  }

  .side-cta .btn{width:100%;justify-content:center;}

  .sidebar-mask{display:none;}

  /* ============ 移动端顶栏 ============ */
  .mobile-bar{display:none;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }

  .btn-primary{
    background:var(--c-primary);
    color:#fff;
  }
  .btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}

  .btn-outline{
    background:#fff;
    border-color:var(--c-primary);
    color:var(--c-primary);
  }
  .btn-outline:hover{background:var(--c-soft-2);transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);}

  .btn-soft{
    background:var(--c-soft);
    color:var(--c-primary);
    border-color:transparent;
  }
  .btn-soft:hover{background:#E2EDF5;}

  .btn-sm{padding:9px 16px;font-size:13.5px;border-radius:9px;}

  /* ============ 文章容器 ============ */
  .article-wrap{
    width:100%;
    max-width:860px;
    margin:0 auto;
    padding:40px 28px 72px;
  }

  .crumbs{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--c-muted);
    margin-bottom:20px;
    line-height:1.6;
  }
  .crumbs a{color:var(--c-muted);transition:color .18s ease;}
  .crumbs a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
  .crumbs .sep{color:#BECFD9;}
  .crumbs .current{
    color:var(--c-text);
    font-weight:500;
    max-width:360px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }

  .article-card{
    background:var(--c-card);
    border:1px solid var(--c-border);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    padding:38px 40px 42px;
  }

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    background:var(--c-soft);
    color:var(--c-primary);
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
  }

  .badge-accent{
    background:rgba(224,138,60,.12);
    color:#B96B24;
  }

  .article-head{padding-bottom:24px;border-bottom:1px solid var(--c-border);}

  .article-title{
    margin:16px 0 14px;
    font-size:clamp(24px,3vw,34px);
    font-weight:700;
    line-height:1.32;
    letter-spacing:-.01em;
    color:var(--c-primary);
  }

  .meta-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    font-size:13px;
    color:var(--c-muted);
  }
  .meta-row .divider{width:1px;height:12px;background:var(--c-border);display:inline-block;}
  .meta-row .num{font-variant-numeric:tabular-nums;}

  /* ============ 正文排版 ============ */
  .prose-cn{
    padding:28px 0 6px;
    font-size:16.5px;
    line-height:1.85;
    color:var(--c-text);
    word-break:break-word;
  }

  .prose-cn p{margin:0 0 1.15em;}
  .prose-cn > p:first-of-type{
    font-size:17.5px;
    color:#233642;
    font-weight:500;
  }

  .prose-cn h2{
    position:relative;
    margin:2em 0 .85em;
    padding-left:14px;
    font-size:22px;
    font-weight:700;
    line-height:1.45;
    color:var(--c-primary);
  }
  .prose-cn h2::before{
    content:"";
    position:absolute;
    left:0;top:.18em;
    width:4px;height:1.1em;
    border-radius:2px;
    background:var(--c-accent);
  }

  .prose-cn h3{
    margin:1.7em 0 .6em;
    font-size:18px;
    font-weight:600;
    color:var(--c-primary);
    line-height:1.5;
  }

  .prose-cn h4{
    margin:1.4em 0 .5em;
    font-size:16.5px;
    font-weight:600;
    color:#233642;
  }

  .prose-cn ul{margin:0 0 1.2em;}
  .prose-cn ul li{
    position:relative;
    padding-left:18px;
    margin-bottom:.5em;
  }
  .prose-cn ul li::before{
    content:"";
    position:absolute;
    left:2px;top:.72em;
    width:6px;height:6px;
    border-radius:50%;
    background:var(--c-primary);
  }

  .prose-cn ol{counter-reset:proseol;margin:0 0 1.2em;}
  .prose-cn ol li{
    position:relative;
    padding-left:28px;
    margin-bottom:.55em;
    counter-increment:proseol;
  }
  .prose-cn ol li::before{
    content:counter(proseol);
    position:absolute;
    left:0;top:.22em;
    width:19px;height:19px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:var(--c-soft);
    color:var(--c-primary);
    font-size:12px;
    font-weight:700;
    font-variant-numeric:tabular-nums;
  }

  .prose-cn blockquote{
    margin:1.5em 0;
    padding:16px 20px;
    background:var(--c-soft);
    border-left:3px solid var(--c-primary);
    border-radius:0 12px 12px 0;
    color:#3D505D;
    font-size:15.5px;
  }
  .prose-cn blockquote p:last-child{margin-bottom:0;}

  .prose-cn img{
    border-radius:12px;
    margin:1.5em auto;
    box-shadow:var(--shadow-1);
  }

  .prose-cn a{
    color:var(--c-primary);
    border-bottom:1px solid rgba(27,77,107,.32);
    transition:border-color .18s ease,color .18s ease;
  }
  .prose-cn a:hover{border-bottom-color:var(--c-primary);color:var(--c-primary-dark);}

  .prose-cn table{
    width:100%;
    border-collapse:collapse;
    margin:1.5em 0;
    font-size:14.5px;
    border:1px solid var(--c-border);
    border-radius:12px;
    overflow:hidden;
  }
  .prose-cn th,.prose-cn td{
    border:1px solid var(--c-border);
    padding:10px 14px;
    text-align:left;
    vertical-align:top;
  }
  .prose-cn th{
    background:var(--c-soft);
    color:var(--c-primary);
    font-weight:600;
  }
  .prose-cn tr:nth-child(even) td{background:#FBFCFD;}

  .prose-cn code{
    background:var(--c-soft-2);
    padding:2px 6px;
    border-radius:6px;
    font-size:.92em;
  }
  .prose-cn pre{
    background:#0F3348;
    color:#DCEAF3;
    padding:18px 20px;
    border-radius:12px;
    overflow-x:auto;
    margin:1.4em 0;
  }
  .prose-cn pre code{background:none;padding:0;color:inherit;}

  .prose-cn hr{
    border:none;
    border-top:1px solid var(--c-border);
    margin:2em 0;
  }

  /* ============ 标签 ============ */
  .tag-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-top:34px;
    padding-top:26px;
    border-top:1px solid var(--c-border);
  }

  .tag-row .tag-label{
    font-size:13px;
    color:var(--c-muted);
    margin-right:2px;
  }

  .tag{
    display:inline-flex;
    align-items:center;
    padding:6px 14px;
    border-radius:999px;
    border:1px solid var(--c-border);
    background:#fff;
    font-size:13px;
    color:var(--c-muted);
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .tag:hover,.tag:focus-visible{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-soft-2);}

  /* ============ 空态 ============ */
  .empty-state{
    margin:34px 0 6px;
    padding:70px 24px;
    text-align:center;
    background:#fff;
    border:1px solid var(--c-border);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
  }
  .empty-state i{
    display:block;
    font-size:40px;
    color:#A9BCC9;
    margin-bottom:16px;
  }
  .empty-state p{
    margin:0 0 22px;
    font-size:15px;
    color:var(--c-muted);
  }

  /* ============ 相关推荐 ============ */
  .related{margin-top:52px;}

  .section-head{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:16px;
    margin-bottom:20px;
  }
  .section-head h2{
    font-size:20px;
    font-weight:700;
    color:var(--c-primary);
    letter-spacing:-.01em;
  }
  .section-head a{
    font-size:13px;
    color:var(--c-primary);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:gap .2s ease;
  }
  .section-head a:hover{gap:10px;}

  .rel-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:18px;
  }

  .rel-card{
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid var(--c-border);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:transform .24s ease,box-shadow .24s ease;
  }
  .rel-card:hover,.rel-card:focus-visible{transform:translateY(-3px);box-shadow:var(--shadow-2);}

  .rel-card img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    background:var(--c-border);
  }

  .rel-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}

  .rel-body .rel-cat{
    font-size:11.5px;
    font-weight:600;
    color:var(--c-primary);
    background:var(--c-soft);
    border-radius:999px;
    padding:3px 10px;
    align-self:flex-start;
  }

  .rel-body h3{
    font-size:15.5px;
    font-weight:600;
    line-height:1.55;
    color:var(--c-text);
    transition:color .2s ease;
  }
  .rel-card:hover .rel-body h3{color:var(--c-primary);}

  .rel-body p{
    margin:0;
    font-size:13px;
    line-height:1.7;
    color:var(--c-muted);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }

  /* ============ 返回 / 回到顶部 ============ */
  .back-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    margin-top:40px;
    padding-top:26px;
    border-top:1px solid var(--c-border);
  }

  .to-top{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:10px 18px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--c-border);
    font-size:13.5px;
    color:var(--c-muted);
    transition:color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .to-top:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);}

  /* ============ 页脚 ============ */
  .footer{
    margin-top:auto;
    background:var(--c-primary-dark);
    color:#B9CCD9;
    padding:56px 40px 0;
  }

  .footer-inner{max-width:1200px;margin:0 auto;width:100%;}

  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.5fr;
    gap:34px;
    padding-bottom:38px;
  }

  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{
    width:38px;height:38px;flex:0 0 38px;
    border-radius:10px;
    background:rgba(255,255,255,.14);
    color:#fff;
    font-size:13px;font-weight:700;
    display:flex;align-items:center;justify-content:center;
  }
  .footer-brand strong{font-size:15px;color:#fff;font-weight:700;}

  .footer h4{
    font-size:14px;
    font-weight:600;
    color:#fff;
    margin:0 0 14px;
  }

  .footer p{
    margin:0;
    font-size:13px;
    line-height:1.95;
    color:#A6C0D1;
  }

  .footer-links{display:flex;flex-direction:column;gap:10px;}

  .footer-links a{
    font-size:13px;
    color:#B9CCD9;
    transition:color .2s ease,padding-left .2s ease;
  }
  .footer-links a:hover{color:#fff;padding-left:4px;}

  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    padding:18px 0;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:#8FAABD;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .mobile-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      position:fixed;
      top:0;left:0;right:0;
      height:60px;
      padding:0 14px;
      background:#fff;
      border-bottom:1px solid var(--c-border);
      box-shadow:0 2px 12px rgba(27,77,107,.06);
      z-index:70;
    }

    .mobile-brand{
      display:flex;
      align-items:center;
      gap:8px;
      min-width:0;
      font-size:13px;
      font-weight:700;
      color:var(--c-primary);
    }
    .mobile-brand .brand-mark{
      width:32px;height:32px;flex:0 0 32px;
      border-radius:9px;
      font-size:12px;
    }
    .mobile-brand strong{
      font-weight:700;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .hamburger{
      width:38px;height:38px;
      flex:0 0 38px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:10px;
      border:1px solid var(--c-border);
      background:#fff;
      color:var(--c-primary);
      font-size:16px;
      transition:background .2s ease;
    }
    .hamburger:hover{background:var(--c-soft-2);}

    .sidebar{
      position:fixed;
      top:0;left:0;
      width:272px;
      flex:0 0 272px;
      height:100vh;
      transform:translateX(-104%);
      transition:transform .28s ease;
      box-shadow:0 0 44px rgba(20,60,84,.2);
      z-index:90;
    }
    .sidebar.open{transform:translateX(0);}

    .sidebar-mask{
      display:block;
      position:fixed;
      inset:0;
      background:rgba(20,60,84,.38);
      opacity:0;
      pointer-events:none;
      transition:opacity .28s ease;
      z-index:80;
    }
    .sidebar-mask.show{opacity:1;pointer-events:auto;}

    .main-area{padding-top:60px;}

    .article-wrap{padding:26px 18px 56px;}

    .article-card{padding:28px 22px 32px;}

    .prose-cn{font-size:16px;}

    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}

    .footer{padding:44px 20px 0;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }

  @media (max-width:767px){
    .section-head h2{font-size:18px;}
    .back-row{flex-direction:column;align-items:flex-start;}
    .back-row .btn{width:100%;}
    .to-top{width:100%;justify-content:center;}
  }

  @media (max-width:640px){
    .article-wrap{padding:20px 14px 48px;}
    .article-card{padding:22px 18px 26px;border-radius:14px;}
    .article-title{font-size:22px;}
    .crumbs .current{max-width:200px;}
    .prose-cn h2{font-size:19px;}
    .prose-cn h3{font-size:16.5px;}
    .prose-cn table{font-size:13px;}
    .prose-cn th,.prose-cn td{padding:8px 10px;}
    .rel-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  }

/* roulang page: category1 */
:root{
    --primary:#1B4D6B;
    --primary-dark:#143C54;
    --accent:#E08A3C;
    --bg:#F7F9FB;
    --card:#FFFFFF;
    --border:#E3EAF0;
    --text:#2C3A45;
    --muted:#6B7C89;
    --soft:#EEF4F8;
    --soft-2:#F1F6FA;
    --radius-lg:16px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-1:0 8px 24px rgba(27,77,107,.08);
    --shadow-2:0 14px 34px rgba(27,77,107,.14);
    --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-cn);
    font-size:15px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding-left:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;border-style:none;}
  button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
  input,textarea{font:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
  .btn-primary:focus-visible,.btn-accent:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  /* ===== 布局骨架 ===== */
  .app-shell{display:flex;align-items:flex-start;min-height:100vh;}
  .sidebar{
    width:240px;flex:0 0 240px;position:sticky;top:0;height:100vh;
    display:flex;flex-direction:column;gap:18px;
    background:var(--card);border-right:1px solid var(--border);
    padding:24px 16px;overflow-y:auto;
  }
  .main{flex:1;min-width:0;}
  .main-inner{max-width:1200px;margin:0 auto;padding:36px 40px 0;}

  /* ===== 侧栏品牌与导航 ===== */
  .sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 4px 4px;}
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;border-radius:var(--radius-md);
    background:var(--primary);color:#fff;display:grid;place-items:center;
    font-size:13px;font-weight:700;letter-spacing:.04em;
  }
  .sidebar-brand strong{display:block;font-size:12.5px;font-weight:700;color:var(--primary);line-height:1.4;}
  .sidebar-brand .brand-sub{display:block;font-size:11px;color:var(--muted);letter-spacing:.02em;}
  .nav-label{display:block;font-size:11px;letter-spacing:.16em;color:#9AAAB6;padding:0 10px;text-transform:uppercase;}
  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;
    height:42px;padding:0 12px;border-radius:var(--radius-sm);
    font-size:14px;font-weight:500;color:var(--muted);
    transition:background .2s ease,color .2s ease;
  }
  .nav-item i{width:18px;text-align:center;font-size:14px;opacity:.9;}
  .nav-item:hover{background:var(--soft-2);color:var(--primary);}
  .nav-item.active{background:var(--soft-2);color:var(--primary);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:999px;background:var(--accent);
  }
  .side-cta{
    margin-top:auto;background:var(--soft);border-radius:14px;padding:16px;
    border:1px solid #DDE9F1;
  }
  .side-cta p{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:8px;}
  .side-cta .btn-primary{width:100%;justify-content:center;margin-top:12px;}

  /* ===== 移动端顶栏与抽屉 ===== */
  .mobile-bar{
    display:none;position:sticky;top:0;z-index:50;height:60px;
    align-items:center;gap:12px;padding:0 14px;
    background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--border);
  }
  .burger{
    width:38px;height:38px;border-radius:var(--radius-sm);display:grid;place-items:center;
    border:1px solid var(--border);color:var(--primary);background:#fff;
  }
  .burger:hover{background:var(--soft-2);}
  .mobile-brand{display:flex;align-items:center;gap:8px;min-width:0;}
  .mobile-brand strong{font-size:13px;font-weight:700;color:var(--primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .mobile-cta{margin-left:auto;font-size:13px;font-weight:600;color:var(--primary);border:1px solid var(--primary);border-radius:var(--radius-sm);padding:7px 12px;background:#fff;}
  .mobile-cta:hover{background:var(--soft-2);}
  .overlay{
    display:none;position:fixed;inset:0;background:rgba(20,60,84,.42);z-index:55;
    opacity:0;transition:opacity .24s ease;
  }
  .overlay.show{display:block;opacity:1;}

  /* ===== 通用组件 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;line-height:1.2;
    transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(27,77,107,.16);}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
  .btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary);}
  .btn-ghost:hover{background:var(--soft-2);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(224,138,60,.2);}
  .btn-accent:hover{background:#CC7A2F;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
    background:var(--soft);color:var(--primary);
  }
  .pill-accent{background:rgba(224,138,60,.12);color:#B96C21;}
  .card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-1);
    transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .section{margin-top:64px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:22px;}
  .section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--primary);line-height:1.3;}
  .section-head p{font-size:14px;color:var(--muted);margin-top:6px;}
  .link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease;}
  .link-more:hover{color:var(--accent);gap:10px;}

  /* ===== 面包屑 ===== */
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
  .breadcrumb a{color:var(--muted);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb i{font-size:10px;opacity:.6;}
  .breadcrumb .current{color:var(--primary);font-weight:600;}

  /* ===== 页首 ===== */
  .page-head{margin-top:20px;}
  .page-head h1{
    font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.28;
    color:var(--primary);letter-spacing:-.01em;margin-top:14px;max-width:820px;
  }
  .page-lead{font-size:16px;color:var(--muted);line-height:1.8;max-width:780px;margin-top:14px;}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .chip{
    padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
    border:1px solid var(--border);background:#fff;color:var(--muted);
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .chip:hover{background:var(--soft-2);color:var(--primary);border-color:#CFE0EC;transform:translateY(-1px);}
  .chip.active{background:var(--primary);color:#fff;border-color:var(--primary);}

  /* ===== 提示条 ===== */
  .notice-bar{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    background:var(--soft);border:1px solid #DDE9F1;border-radius:14px;
    padding:14px 18px;margin-top:28px;
  }
  .notice-dot{
    width:9px;height:9px;border-radius:50%;background:var(--accent);flex:0 0 9px;
    box-shadow:0 0 0 5px rgba(224,138,60,.14);
  }
  .notice-bar strong{font-size:14.5px;font-weight:600;color:var(--primary);}
  .notice-bar span{font-size:13px;color:var(--muted);}
  .notice-bar .link-more{margin-left:auto;}

  /* ===== 图文卡列表 ===== */
  .entry-list{display:grid;gap:18px;grid-template-columns:1fr;}
  .entry-card{display:grid;grid-template-columns:240px 1fr;gap:22px;padding:20px;align-items:stretch;}
  .entry-thumb{
    position:relative;border-radius:var(--radius-md);overflow:hidden;background:#E3EAF0;
  }
  .entry-thumb img{width:100%;height:100%;min-height:160px;object-fit:cover;transition:transform .3s ease;}
  .entry-card:hover .entry-thumb img{transform:scale(1.04);}
  .entry-body{display:flex;flex-direction:column;min-width:0;}
  .entry-body h3{font-size:18px;font-weight:600;color:var(--primary);line-height:1.45;}
  .entry-body p{font-size:14.5px;color:var(--muted);line-height:1.78;margin-top:8px;}
  .entry-meta{
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
    margin-top:auto;padding-top:14px;font-size:12.5px;color:#8A9AA6;
  }
  .entry-meta .tag{background:var(--soft);color:var(--primary);border-radius:999px;padding:3px 10px;font-weight:600;}
  .entry-meta i{font-size:10px;opacity:.7;}

  /* ===== 入口卡与清单 ===== */
  .two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:stretch;}
  .action-card{
    background:var(--soft);border:1px solid #DDE9F1;border-radius:var(--radius-lg);
    padding:28px;display:flex;flex-direction:column;justify-content:center;
  }
  .action-card h2{font-size:clamp(21px,2.4vw,27px);font-weight:700;color:var(--primary);line-height:1.35;}
  .action-card p{font-size:14.5px;color:var(--muted);margin-top:10px;line-height:1.8;}
  .action-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
  .checklist{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--border);box-shadow:var(--shadow-1);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .checklist::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.93);}
  .checklist-inner{position:relative;padding:28px;}
  .checklist-inner h3{font-size:18px;font-weight:600;color:var(--primary);}
  .checklist-inner ul{margin-top:16px;display:flex;flex-direction:column;gap:14px;}
  .checklist-inner li{display:flex;gap:12px;font-size:14.5px;color:var(--text);line-height:1.75;}
  .checklist-inner li i{
    color:var(--accent);font-size:13px;margin-top:5px;flex:0 0 16px;
  }

  /* ===== 步骤条 ===== */
  .step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
  .step-card{padding:22px 20px;display:flex;flex-direction:column;gap:10px;}
  .step-num{
    width:38px;height:38px;border-radius:50%;border:2px solid var(--primary);
    display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--primary);
    font-variant-numeric:tabular-nums;
  }
  .step-card h3{font-size:16.5px;font-weight:600;color:var(--primary);}
  .step-card p{font-size:14px;color:var(--muted);line-height:1.75;}

  /* ===== FAQ ===== */
  .faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:32px;align-items:start;}
  .faq-intro h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--primary);line-height:1.32;}
  .faq-intro p{font-size:14.5px;color:var(--muted);margin-top:12px;line-height:1.8;}
  .faq-rule{width:64px;height:3px;border-radius:999px;background:var(--accent);margin-top:20px;}
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);overflow:hidden;
    transition:box-shadow .24s ease,border-color .24s ease;
  }
  .faq-item[open]{border-color:#CFE0EC;box-shadow:var(--shadow-2);}
  .faq-item summary{
    list-style:none;display:flex;align-items:center;gap:14px;
    min-height:52px;padding:14px 18px;cursor:pointer;
    font-size:15.5px;font-weight:600;color:var(--primary);line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:var(--soft-2);}
  .faq-item summary .faq-sign{
    margin-left:auto;flex:0 0 22px;color:var(--accent);font-size:15px;
    display:grid;place-items:center;transition:transform .24s ease;
  }
  .faq-item[open] summary .faq-sign{transform:rotate(45deg);}
  .faq-answer{
    margin:0 14px 14px;padding:14px 16px;border-radius:var(--radius-md);
    background:var(--bg);font-size:14px;color:var(--muted);line-height:1.85;
  }

  /* ===== 表单 CTA ===== */
  .cta-block{
    background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);
    padding:32px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;
  }
  .cta-block h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;color:var(--primary);line-height:1.34;}
  .cta-block .cta-sub{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.8;}
  .cta-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
  .cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text);}
  .cta-points li i{color:var(--accent);font-size:12px;margin-top:6px;}
  .form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-1);}
  .field{margin-bottom:14px;}
  .field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:6px;}
  .field input,.field textarea{
    width:100%;height:44px;padding:0 14px;border-radius:var(--radius-sm);
    border:1px solid var(--border);background:#fff;color:var(--text);
    font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:88px;padding:11px 14px;resize:vertical;line-height:1.7;}
  .field input::placeholder,.field textarea::placeholder{color:#A6B5BF;}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,77,107,.14);
  }
  .field-hint{font-size:12px;color:#8A9AA6;margin-top:6px;}
  .form-note{font-size:12px;color:#8A9AA6;margin-top:10px;line-height:1.7;}
  .form-feedback{
    display:none;margin-top:12px;padding:10px 14px;border-radius:var(--radius-sm);
    background:var(--soft);color:var(--primary);font-size:13.5px;font-weight:600;
  }
  .form-feedback.show{display:block;}

  /* ===== 页脚 ===== */
  .footer{
    margin-top:72px;background:var(--primary-dark);color:#B9CCD9;
    padding:48px 0 0;
  }
  .footer-inner{max-width:1200px;margin:0 auto;padding:0 40px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
  .footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:var(--radius-sm);background:rgba(255,255,255,.12);}
  .footer-brand strong{font-size:15px;color:#fff;font-weight:700;}
  .footer p{font-size:13px;line-height:1.85;color:#9FB7C6;}
  .footer h4{font-size:13.5px;color:#fff;font-weight:600;margin-bottom:12px;letter-spacing:.02em;}
  .footer-links{display:flex;flex-direction:column;gap:8px;}
  .footer-links a{font-size:13px;color:#B9CCD9;transition:color .2s ease;}
  .footer-links a:hover{color:#fff;}
  .footer-bottom{
    margin-top:36px;padding:18px 0 22px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12.5px;color:#8FA9B9;
  }

  /* ===== 响应式 ===== */
  @media (max-width:1199px){
    .main-inner{padding:32px 28px 0;}
    .footer-inner{padding:0 28px;}
  }
  @media (min-width:1100px){
    .entry-list{grid-template-columns:repeat(2,1fr);}
    .entry-card{grid-template-columns:1fr;gap:16px;}
    .entry-thumb img{min-height:176px;height:176px;}
  }
  @media (max-width:1023px){
    .app-shell{display:block;}
    .sidebar{
      position:fixed;top:0;left:0;height:100vh;width:270px;flex-basis:270px;z-index:60;
      transform:translateX(-102%);transition:transform .28s ease;box-shadow:var(--shadow-2);
    }
    .sidebar.open{transform:translateX(0);}
    .mobile-bar{display:flex;}
    .main-inner{padding:24px 20px 0;}
    .two-col{grid-template-columns:1fr;}
    .faq-wrap{grid-template-columns:1fr;gap:24px;}
    .cta-block{grid-template-columns:1fr;gap:24px;padding:24px;}
    .step-row{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
    .footer-inner{padding:0 20px;}
    .section{margin-top:48px;}
  }
  @media (max-width:767px){
    .entry-card{grid-template-columns:1fr;gap:16px;padding:16px;}
    .entry-thumb img{height:180px;min-height:180px;}
    .step-row{grid-template-columns:1fr;}
    .notice-bar .link-more{margin-left:0;}
  }
  @media (max-width:520px){
    body{font-size:14.5px;}
    .page-head h1{font-size:26px;}
    .page-lead{font-size:14.5px;}
    .chip{font-size:12.5px;padding:7px 13px;}
    .action-card,.checklist-inner,.form-card{padding:20px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;gap:6px;}
    .cta-block{padding:20px;}
    .entry-thumb img{height:160px;min-height:160px;}
  }

/* roulang page: category2 */
:root{
    --primary:#1B4D6B;
    --primary-dark:#143C54;
    --accent:#E08A3C;
    --accent-deep:#B86A22;
    --bg:#F7F9FB;
    --card:#FFFFFF;
    --border:#E3EAF0;
    --text:#2C3A45;
    --muted:#6B7C89;
    --soft:#EEF4F8;
    --soft-2:#F1F6FA;
    --r-card:16px;
    --r-btn:10px;
    --r-img:12px;
    --sh-1:0 8px 24px rgba(27,77,107,.08);
    --sh-2:0 14px 34px rgba(27,77,107,.14);
    --side:240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    padding-top:60px;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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-radius:var(--r-img);}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

  /* ---------- 移动端顶栏 ---------- */
  .mobile-bar{
    position:fixed;top:0;left:0;right:0;height:60px;z-index:60;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:0 16px;background:#fff;border-bottom:1px solid var(--border);
    box-shadow:0 2px 10px rgba(27,77,107,.05);
  }
  .mobile-bar .brand-text strong{font-size:13px;}
  .burger{
    width:40px;height:40px;border-radius:10px;border:1px solid var(--border);
    background:var(--soft-2);color:var(--primary);display:flex;align-items:center;justify-content:center;
    font-size:16px;cursor:pointer;transition:background .2s ease;
  }
  .burger:hover{background:var(--soft);}
  .mobile-bar .mini-cta{
    display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:var(--r-btn);
    background:var(--primary);color:#fff;font-size:13px;font-weight:600;
  }
  .mobile-bar .mini-cta:hover{background:var(--primary-dark);}

  /* ---------- 抽屉 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;background:#fff;padding:20px 18px 32px;
    transform:translateX(-102%);transition:transform .28s ease;
    display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border);margin-bottom:10px;}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:#fff;
    color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer;
  }
  .drawer .nav-item{height:44px;}
  .drawer-note{margin-top:auto;background:var(--soft);border-radius:12px;padding:16px;font-size:13px;color:var(--muted);line-height:1.7;}

  /* ---------- 品牌 ---------- */
  .brand{display:flex;align-items:center;gap:10px;}
  .brand-mark{
    width:40px;height:40px;border-radius:12px;background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
  }
  .brand-text strong{display:block;font-size:14px;font-weight:700;color:var(--primary);line-height:1.35;letter-spacing:.01em;}
  .brand-text span{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em;}

  /* ---------- 侧边导航 ---------- */
  .sidebar{
    display:none;position:fixed;top:0;left:0;width:var(--side);height:100vh;
    background:#fff;border-right:1px solid var(--border);z-index:40;
    flex-direction:column;padding:24px 16px;overflow-y:auto;
  }
  .sidebar .brand{padding:0 8px 20px;border-bottom:1px solid var(--border);margin-bottom:16px;}
  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .nav-label{
    font-size:11px;letter-spacing:.16em;color:var(--muted);padding:0 12px 8px;text-transform:uppercase;
  }
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;height:42px;padding:0 12px;
    border-radius:10px;font-size:14px;font-weight:500;color:var(--muted);
  }
  .nav-item i{width:18px;font-size:15px;text-align:center;}
  .nav-item:hover{background:var(--soft-2);color:var(--primary);}
  .nav-item.active{background:var(--soft-2);color:var(--primary);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--accent);
  }
  .side-cta{
    margin-top:auto;background:var(--soft);border-radius:14px;padding:16px;
  }
  .side-cta p{font-size:12px;color:var(--muted);line-height:1.7;margin-top:10px;}
  .side-cta .btn{width:100%;}

  /* ---------- 主区域 ---------- */
  .main-area{padding:0 16px 56px;}
  .wrap{max-width:1120px;margin:0 auto;}
  .section{padding:36px 0 0;}
  .section-lg{padding:48px 0 0;}

  /* ---------- 按钮 / 徽章 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
  .btn-outline:hover{background:var(--soft-2);transform:translateY(-1px);}
  .btn-soft{background:var(--soft);color:var(--primary);border-color:transparent;}
  .btn-soft:hover{background:var(--soft-2);}
  .pill{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:13px;font-weight:500;background:var(--soft);color:var(--primary);
  }
  .pill-accent{background:rgba(224,138,60,.12);color:var(--accent-deep);}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
    font-size:12px;font-weight:600;background:var(--soft);color:var(--primary);
  }

  /* ---------- 面包屑 ---------- */
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:20px 0 4px;}
  .crumbs a:hover{color:var(--primary);}
  .crumbs i{font-size:10px;opacity:.7;}
  .crumbs .current{color:var(--text);}

  /* ---------- Hero ---------- */
  .hero{
    background:var(--card);border:1px solid var(--border);border-radius:20px;
    box-shadow:var(--sh-1);padding:26px 22px;margin-top:14px;
    display:grid;grid-template-columns:1fr;gap:26px;
  }
  .hero h1{
    font-size:clamp(26px,4vw,40px);font-weight:700;line-height:1.25;color:var(--primary);letter-spacing:-.01em;
    margin:14px 0 14px;
  }
  .hero h1 .h1-sub{display:block;font-size:clamp(17px,2.2vw,22px);color:var(--text);font-weight:600;margin-top:10px;}
  .hero-lead{font-size:16px;line-height:1.85;color:#41525f;max-width:60ch;}
  .hero-pills{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .hero-media{position:relative;}
  .hero-media::before{
    content:"";position:absolute;left:14px;top:14px;right:-14px;bottom:-14px;
    background:var(--border);border-radius:18px;z-index:0;
  }
  .hero-media img{
    position:relative;z-index:1;width:100%;height:100%;min-height:220px;max-height:330px;
    object-fit:cover;border-radius:var(--r-card);
  }
  .hero-media .media-tag{
    position:absolute;z-index:2;left:14px;bottom:14px;background:rgba(255,255,255,.92);
    color:var(--primary);font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;
  }

  /* ---------- 分类 chips ---------- */
  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .chip{
    display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;
    font-size:13px;font-weight:500;border:1px solid var(--border);background:#fff;color:var(--muted);
  }
  .chip:hover{background:var(--soft-2);color:var(--primary);border-color:#CFDDE7;}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}
  .chip.is-active:hover{background:var(--primary-dark);color:#fff;}

  /* ---------- 通用标题 ---------- */
  .sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:22px;}
  .sec-head h2{font-size:clamp(21px,2.6vw,29px);font-weight:700;color:var(--primary);line-height:1.35;}
  .sec-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:64ch;line-height:1.8;}
  .sec-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
  .sec-link:hover{color:var(--accent-deep);}

  /* ---------- 三要点 ---------- */
  .points{display:grid;grid-template-columns:1fr;gap:16px;}
  .point{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;
  }
  .point:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .point-num{
    display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
    background:var(--soft);color:var(--primary);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
    margin-bottom:14px;
  }
  .point h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:8px;}
  .point p{font-size:14px;line-height:1.8;color:#5b6b77;}

  /* ---------- 步骤流 ---------- */
  .flow-grid{display:grid;grid-template-columns:1fr;gap:26px;align-items:start;}
  .steps{position:relative;}
  .step{position:relative;display:grid;grid-template-columns:44px 1fr;gap:18px;padding-bottom:30px;}
  .step:last-child{padding-bottom:0;}
  .step::before{
    content:"";position:absolute;left:21px;top:52px;bottom:2px;border-left:1px dashed #C9D8E3;
  }
  .step:last-child::before{display:none;}
  .step-num{
    width:44px;height:44px;border-radius:50%;background:#fff;border:2px solid var(--primary);
    color:var(--primary);display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;flex:0 0 auto;
  }
  .step-body{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:18px 20px;box-shadow:var(--sh-1);transition:box-shadow .24s ease,transform .24s ease;
  }
  .step-body:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
  .step-body h3{font-size:17px;font-weight:600;color:var(--primary);margin-bottom:8px;}
  .step-body p{font-size:14.5px;line-height:1.8;color:#4c5c68;}
  .step-extra{
    display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;
  }
  .step-extra span{
    font-size:12px;background:var(--bg);border:1px solid var(--border);color:var(--muted);
    padding:4px 10px;border-radius:999px;
  }

  .entry-card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:22px;box-shadow:var(--sh-1);
  }
  .entry-card .entry-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .entry-card .entry-icon{
    width:38px;height:38px;border-radius:10px;background:var(--soft);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:15px;
  }
  .entry-card h3{font-size:16px;font-weight:600;color:var(--text);}
  .entry-card p{font-size:13.5px;line-height:1.8;color:var(--muted);margin-bottom:16px;}
  .entry-card .btn{width:100%;}
  .entry-list{margin-top:18px;padding-top:16px;border-top:1px dashed var(--border);display:grid;gap:10px;}
  .entry-list li{display:flex;gap:9px;font-size:13px;color:#55666f;line-height:1.7;}
  .entry-list i{color:var(--accent);font-size:12px;margin-top:5px;}

  /* ---------- 安全提醒 ---------- */
  .reminders{display:grid;grid-template-columns:1fr;gap:14px;}
  .reminder{
    background:var(--card);border:1px solid var(--border);border-left:3px solid var(--accent);
    border-radius:12px;padding:18px 20px;box-shadow:var(--sh-1);
    display:grid;grid-template-columns:34px 1fr;gap:14px;align-items:start;
  }
  .reminder i{
    width:34px;height:34px;border-radius:9px;background:rgba(224,138,60,.12);color:var(--accent-deep);
    display:flex;align-items:center;justify-content:center;font-size:14px;
  }
  .reminder h3{font-size:15.5px;font-weight:600;margin-bottom:6px;}
  .reminder p{font-size:14px;line-height:1.8;color:#5b6b77;}

  /* ---------- 场景卡 ---------- */
  .scenes{display:grid;grid-template-columns:1fr;gap:18px;}
  .scene{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;
    display:flex;flex-direction:column;
  }
  .scene:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .scene img{width:100%;height:160px;object-fit:cover;border-radius:0;background:var(--border);}
  .scene-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .scene-body h3{font-size:17px;font-weight:600;color:var(--text);}
  .scene-body p{font-size:14px;line-height:1.8;color:#5b6b77;flex:1;}
  .scene-body .badge{align-self:flex-start;}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:1fr;gap:22px;}
  .faq-intro{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
  .faq-intro h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--primary);line-height:1.4;}
  .faq-intro p{font-size:14px;line-height:1.85;color:#5b6b77;margin-top:12px;}
  .faq-intro .rule{width:52px;height:3px;border-radius:2px;background:var(--accent);margin-top:18px;}
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--card);border:1px solid var(--border);border-radius:14px;
    box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .24s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-2);}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:52px;padding:15px 20px;font-size:15.5px;font-weight:600;color:var(--text);
    cursor:pointer;list-style:none;
  }
  .faq-q::-webkit-details-marker{display:none;}
  .faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
  .faq-icon{
    flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--soft);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;line-height:1;
    transition:transform .2s ease,background .2s ease;
  }
  .faq-icon::before{content:"+";}
  details[open] .faq-icon{background:rgba(224,138,60,.14);color:var(--accent-deep);transform:rotate(180deg);}
  details[open] .faq-icon::before{content:"−";}
  details[open] .faq-q{color:var(--primary);}
  .faq-a{padding:0 20px 18px;}
  .faq-a p{
    background:var(--bg);border-radius:12px;padding:14px 16px;
    font-size:14px;line-height:1.85;color:#4c5c68;
  }

  /* ---------- CTA ---------- */
  .cta-panel{
    background:var(--bg);border:1px solid var(--border);border-radius:20px;
    padding:24px 22px;box-shadow:var(--sh-1);
    display:grid;grid-template-columns:1fr;gap:24px;
  }
  .cta-panel h2{font-size:clamp(20px,2.5vw,27px);font-weight:700;color:var(--primary);line-height:1.4;}
  .cta-panel .cta-note{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.8;}
  .check-list{margin-top:18px;display:grid;gap:10px;}
  .check-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:#43535f;}
  .check-list i{color:var(--primary);font-size:13px;margin-top:6px;}
  .form-card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:20px;box-shadow:var(--sh-1);
  }
  .field{margin-bottom:14px;}
  .field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;}
  .field input,.field textarea{
    width:100%;min-height:44px;padding:10px 14px;font-size:14.5px;color:var(--text);
    background:#fff;border:1px solid var(--border);border-radius:var(--r-btn);
    transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
  }
  .field textarea{min-height:88px;resize:vertical;line-height:1.7;}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(27,77,107,.18);
  }
  .field input::placeholder,.field textarea::placeholder{color:#9aabb6;}
  .field .hint{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.7;}
  .form-card .btn{width:100%;margin-top:4px;}
  .form-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:12px;text-align:center;}

  /* ---------- 页脚 ---------- */
  .footer{
    background:var(--primary-dark);color:#B9CCD9;margin-top:56px;
    padding:44px 0 0;
  }
  .footer-inner{padding:0 20px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;width:36px;height:36px;border-radius:10px;font-size:13px;}
  .footer-brand strong{color:#fff;font-size:15px;font-weight:700;}
  .footer p{font-size:13px;line-height:1.85;color:#B9CCD9;}
  .footer h4{font-size:13px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
  .footer-links{display:grid;gap:9px;}
  .footer-links a{font-size:13px;color:#B9CCD9;}
  .footer-links a:hover{color:#fff;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    padding:18px 0 22px;font-size:12.5px;color:#8FA8B9;
  }

  /* ---------- 响应式 ---------- */
  @media (min-width:640px){
    .points{grid-template-columns:repeat(2,1fr);}
    .reminders{grid-template-columns:repeat(2,1fr);}
    .scenes{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:repeat(2,1fr);}
    .main-area{padding:0 24px 64px;}
    .hero{padding:30px 28px;}
  }
  @media (min-width:1024px){
    body{padding-top:0;}
    .mobile-bar{display:none;}
    .drawer{display:none;}
    .sidebar{display:flex;}
    .main-area{margin-left:var(--side);padding:0 40px 72px;}
    .section{padding-top:44px;}
    .section-lg{padding-top:56px;}
    .hero{grid-template-columns:7fr 5fr;gap:36px;padding:38px 36px;margin-top:18px;}
    .hero-media img{min-height:280px;max-height:360px;}
    .points{grid-template-columns:repeat(3,1fr);}
    .reminders{grid-template-columns:repeat(3,1fr);}
    .scenes{grid-template-columns:repeat(3,1fr);}
    .flow-grid{grid-template-columns:minmax(0,1fr) 320px;gap:32px;}
    .entry-card{position:sticky;top:24px;}
    .faq-wrap{grid-template-columns:280px minmax(0,1fr);gap:32px;}
    .faq-intro{position:sticky;top:24px;align-self:start;}
    .cta-panel{grid-template-columns:1fr 400px;gap:36px;padding:34px 32px;align-items:start;}
    .footer{margin-left:var(--side);}
    .footer-inner,.footer-grid,.footer-bottom{max-width:1200px;}
    .footer-inner{margin:0 auto;padding:0 40px;}
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
  }
  @media (min-width:1440px){
    .wrap{max-width:1160px;}
  }

/* roulang page: category3 */
:root{
  --brand:#1B4D6B;
  --brand-dark:#143C54;
  --accent:#E08A3C;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3EAF0;
  --text:#2C3A45;
  --muted:#6B7C89;
  --soft:#EEF4F8;
  --soft-2:#F1F6FA;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(27,77,107,.08);
  --shadow-2:0 14px 34px rgba(27,77,107,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
.site-body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.site-body img{display:block;max-width:100%;height:auto}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font:inherit;border:0;background:none;cursor:pointer}
.site-body input,.site-body textarea{font:inherit;color:inherit}
.no-scroll{overflow:hidden}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:60;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:20px 16px 16px;overflow-y:auto;
  transition:transform .28s ease;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 0}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.02em;
}
.brand-text strong{display:block;font-size:13.5px;line-height:1.35;font-weight:700;color:var(--brand-dark)}
.brand-text span{display:block;font-size:11px;color:var(--muted);letter-spacing:.04em}
.nav-label{
  display:block;margin:24px 6px 8px;font-size:11px;font-weight:600;
  letter-spacing:.14em;color:var(--muted);text-transform:uppercase;
}
.side-nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:42px;padding:0 10px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--muted);
  transition:background .2s,color .2s;
}
.nav-item i{width:18px;text-align:center;font-size:13.5px;flex:0 0 18px}
.nav-item:hover{background:var(--soft-2);color:var(--brand)}
.nav-item:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-item.active{background:var(--soft-2);color:var(--brand);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent);
}
.side-cta{
  margin-top:auto;background:var(--soft);border-radius:14px;
  padding:16px;margin-bottom:6px;
}
.side-cta p{margin:0 0 12px;font-size:12.5px;line-height:1.65;color:var(--muted)}
.side-cta .btn{width:100%}

/* ---------- 顶部移动栏 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:10px;padding:0 14px;
}
.menu-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:var(--soft);color:var(--brand);font-size:16px;
  transition:background .2s;
}
.menu-btn:hover{background:var(--soft-2)}
.mobile-brand{display:flex;align-items:center;gap:8px;min-width:0}
.mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:12.5px}
.mobile-brand-text{
  font-size:13.5px;font-weight:700;color:var(--brand-dark);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw;
}
.scrim{position:fixed;inset:0;background:rgba(20,60,84,.45);z-index:55}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s,box-shadow .2s,transform .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-primary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--soft-2);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-soft{background:var(--soft);color:var(--brand)}
.btn-soft:hover{background:var(--soft-2)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}

/* ---------- 主内容 ---------- */
.main{margin-left:240px;min-height:100vh;display:flex;flex-direction:column;overflow-x:clip}
.page{width:100%;max-width:1200px;margin:0 auto;padding:28px 40px 0}

/* ---------- 顶部提示条 ---------- */
.topbar{
  display:flex;align-items:center;gap:12px;
  background:var(--soft);border:1px solid var(--line);border-radius:12px;
  padding:12px 18px;min-height:56px;
}
.topbar .dot{
  width:9px;height:9px;flex:0 0 9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(224,138,60,.5);animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(224,138,60,.45)}
  70%{box-shadow:0 0 0 10px rgba(224,138,60,0)}
  100%{box-shadow:0 0 0 0 rgba(224,138,60,0)}
}
.topbar p{margin:0;font-size:13.5px;color:#3B5061;flex:1 1 auto;line-height:1.6}
.topbar a{
  font-size:13px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(27,77,107,.3);padding-bottom:1px;white-space:nowrap;
}
.topbar a:hover{color:var(--brand-dark);border-color:var(--brand-dark)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3D1DB}
.breadcrumb .current{color:var(--text);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:44px;align-items:center;margin-top:28px;
}
.hero-title{
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;
  color:var(--brand-dark);margin:14px 0 0;letter-spacing:-.01em;
}
.hero-sub{font-size:16.5px;line-height:1.75;color:#41525F;margin:16px 0 0;max-width:46em}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:500;color:var(--brand);
  background:var(--soft);border-radius:999px;padding:6px 14px;
}
.pill-accent{background:rgba(224,138,60,.12);color:#A25E1C}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-media{position:relative}
.hero-media::before{
  content:"";position:absolute;left:18px;top:18px;right:-18px;bottom:-18px;
  background:var(--line);border-radius:16px;z-index:0;
}
.hero-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:16px;box-shadow:var(--shadow-1);
}

/* ---------- 分类切换 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chip{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;color:var(--brand);
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;transition:background .2s,border-color .2s,color .2s,transform .2s;
}
.chip:hover{background:var(--soft-2);border-color:#D2DEE7;transform:translateY(-1px)}
.chip:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.chip-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip-active:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}

/* ---------- 统计块 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:32px}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;box-shadow:var(--shadow-1);transition:transform .22s,box-shadow .22s;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.stat-num{
  display:block;font-size:28px;font-weight:700;line-height:1.2;
  color:var(--brand);font-variant-numeric:tabular-nums;
}
.stat-label{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}

/* ---------- 板块骨架 ---------- */
.section{margin-top:68px}
.section-head{max-width:760px;margin-bottom:26px}
.section-title{
  font-size:clamp(21px,2.4vw,29px);font-weight:700;line-height:1.32;
  color:var(--brand-dark);margin:0 0 10px;
}
.section-desc{font-size:15px;line-height:1.8;color:var(--muted);margin:0}

/* ---------- 三张说明卡 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .22s,box-shadow .22s;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.info-icon{
  width:40px;height:40px;border-radius:12px;background:var(--soft);
  color:var(--brand);display:grid;place-items:center;font-size:16px;margin-bottom:14px;
}
.info-card h3{font-size:17px;font-weight:600;color:var(--brand-dark);margin:0 0 8px;line-height:1.5}
.info-card p{font-size:14.5px;line-height:1.78;color:#41525F;margin:0}

/* ---------- 流程布局 ---------- */
.flow-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:32px;align-items:start}
.toc{
  position:sticky;top:24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 14px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--muted);
  text-transform:uppercase;margin:0 0 10px;padding:0 10px;
}
.toc-link{
  position:relative;display:block;font-size:13px;line-height:1.5;
  color:#546777;padding:9px 10px;border-radius:9px;
  transition:background .2s,color .2s;
}
.toc-link:hover{background:var(--soft-2);color:var(--brand)}
.toc-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.toc-link.active{background:var(--soft-2);color:var(--brand);font-weight:600}
.toc-link.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent);
}

.steps{display:flex;flex-direction:column;gap:20px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);display:grid;
  grid-template-columns:56px minmax(0,1fr);gap:18px;
  transition:box-shadow .22s,transform .22s;scroll-margin-top:90px;
}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.step-num{
  width:48px;height:48px;border-radius:50%;border:2px solid var(--brand);
  color:var(--brand);background:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-title{font-size:18.5px;font-weight:600;color:var(--brand-dark);margin:8px 0 10px;line-height:1.5}
.step-body p{font-size:15px;line-height:1.82;color:#41525F;margin:0 0 12px}
.step-body p:last-child{margin-bottom:0}
.step-list{list-style:none;margin:0 0 4px;padding:0;display:flex;flex-direction:column;gap:8px}
.step-list li{
  position:relative;padding-left:18px;font-size:14.5px;line-height:1.75;color:#41525F;
}
.step-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.step-note{
  display:flex;gap:10px;align-items:flex-start;
  background:var(--soft);border-radius:12px;padding:12px 14px;margin-top:6px;
}
.step-note i{color:var(--accent);font-size:14px;margin-top:3px}
.step-note span{font-size:13.5px;line-height:1.72;color:#3B5061}
.step-media{margin:14px 0 0}
.step-media img{
  width:100%;max-width:360px;aspect-ratio:16/10;object-fit:cover;
  border-radius:12px;border:1px solid var(--line);
}
.step-media figcaption{font-size:12.5px;color:var(--muted);margin-top:8px}

/* ---------- 注意事项 ---------- */
.notice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.notice-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);border-left:3px solid var(--accent);
}
.notice-card h3{font-size:16px;font-weight:600;color:var(--brand-dark);margin:0 0 8px}
.notice-card p{font-size:14.5px;line-height:1.78;color:#41525F;margin:0}

/* ---------- FAQ ---------- */
.faq-list{max-width:940px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:#D2DEE7;box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:16px 20px;min-height:52px;
  font-size:16px;font-weight:600;color:var(--brand-dark);line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--soft);color:var(--brand);display:grid;place-items:center;
  font-size:12px;transition:transform .24s,background .24s,color .24s;
}
.faq-item[open] .faq-ico{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-body{padding:0 20px 18px;font-size:14.5px;line-height:1.85;color:#41525F}
.faq-body p{margin:0 0 10px}
.faq-body p:last-child{margin-bottom:0}

/* ---------- 提交区 ---------- */
.cta-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;
}
.cta-card h2{
  font-size:clamp(20px,2.3vw,26px);font-weight:700;line-height:1.35;
  color:var(--brand-dark);margin:0 0 10px;
}
.cta-lead{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0 0 18px}
.check-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.7;color:#41525F;
}
.check-list i{color:var(--brand);font-size:14px;margin-top:4px}
.cta-note{
  display:flex;gap:10px;align-items:flex-start;background:var(--soft);
  border-radius:12px;padding:12px 14px;
}
.cta-note i{color:var(--accent);font-size:14px;margin-top:3px}
.cta-note span{font-size:13px;line-height:1.7;color:#3B5061}
.form-card{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px}
.form-card h3{font-size:16px;font-weight:600;color:var(--brand-dark);margin:0 0 16px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-field input,.form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0 14px;height:44px;font-size:15px;color:var(--text);
  transition:border-color .2s,box-shadow .2s;
}
.form-field textarea{height:auto;min-height:86px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:#A6B6C2}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,77,107,.13);
}
.form-hint{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.6}
.form-tip{
  font-size:13px;color:#A25E1C;background:rgba(224,138,60,.1);
  border-radius:10px;padding:10px 12px;margin-top:12px;display:none;line-height:1.65;
}
.form-tip.show{display:block}

/* ---------- 页脚 ---------- */
.footer{background:var(--brand-dark);color:#B9CCD9;margin-top:72px}
.footer-inner{max-width:1200px;margin:0 auto;padding:48px 40px 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer .brand-mark{background:rgba(255,255,255,.16);color:#fff}
.footer-brand strong{font-size:14.5px;color:#fff;font-weight:700;line-height:1.4}
.footer p{font-size:13px;line-height:1.8;color:#A8C0D0;margin:0}
.footer h4{
  font-size:12.5px;font-weight:700;color:#fff;letter-spacing:.08em;
  text-transform:uppercase;margin:0 0 14px;
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:13px;color:#B9CCD9;transition:color .2s,transform .2s;width:fit-content}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-links a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:16px;
  font-size:12.5px;color:#8FA9BB;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero{gap:32px}
  .page{padding:26px 32px 0}
  .footer-inner{padding:44px 32px 20px}
}
@media (max-width:1023px){
  html{scroll-padding-top:76px}
  .sidebar{transform:translateX(-100%);width:282px;box-shadow:var(--shadow-2);padding-top:18px}
  .sidebar.open{transform:translateX(0)}
  .mobile-bar{display:flex}
  .main{margin-left:0;padding-top:60px}
  .page{padding:22px 20px 0}
  .hero{grid-template-columns:1fr;gap:28px}
  .hero-media{order:-1}
  .hero-media::before{display:none}
  .hero-media img{aspect-ratio:16/9}
  .flow-layout{grid-template-columns:1fr;gap:22px}
  .toc{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;scrollbar-width:thin}
  .toc-title{display:none}
  .toc-link{white-space:nowrap;flex:0 0 auto;padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:12.5px}
  .toc-link.active{border-color:var(--brand)}
  .toc-link.active::before{display:none}
  .info-grid,.notice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:1fr;gap:24px;padding:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{margin-top:52px}
}
@media (max-width:640px){
  .page{padding:18px 16px 0}
  .topbar{flex-wrap:wrap;gap:8px;padding:12px 14px}
  .topbar p{flex:1 1 100%;order:2;font-size:13px}
  .topbar a{order:3;font-size:12.5px}
  .hero-title{font-size:clamp(25px,7vw,32px)}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:14px 16px}
  .stat-num{font-size:24px}
  .info-grid,.notice-grid{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;padding:22px;gap:12px}
  .step-num{width:42px;height:42px;font-size:15px}
  .step-title{margin-top:0}
  .faq-item summary{font-size:15px;padding:14px 16px}
  .faq-body{padding:0 16px 16px}
  .cta-card{padding:22px}
  .form-card{padding:18px}
  .footer-inner{padding:36px 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{font-size:12px}
  .mobile-brand-text{max-width:42vw}
}

/* roulang page: category4 */
:root{
    --brand:#1B4D6B;
    --brand-dark:#143C54;
    --brand-soft:#EEF4F8;
    --brand-tint:#F1F6FA;
    --accent:#E08A3C;
    --accent-soft:rgba(224,138,60,.12);
    --bg:#F7F9FB;
    --card:#FFFFFF;
    --line:#E3EAF0;
    --text:#2C3A45;
    --muted:#6B7C89;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-img:12px;
    --shadow-1:0 8px 24px rgba(27,77,107,.08);
    --shadow-2:0 14px 34px rgba(27,77,107,.14);
    --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font-cn);
    background:var(--bg);
    color:var(--text);
    font-size:15.5px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
  input,textarea{font-family:inherit;font-size:15px;color:var(--text);}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  /* ---------- 结构骨架 ---------- */
  .shell{display:flex;min-height:100vh;align-items:stretch;}

  /* ---------- 侧边导航 ---------- */
  .sidebar{
    width:240px;flex:0 0 240px;
    position:sticky;top:0;height:100vh;overflow-y:auto;
    background:var(--card);
    border-right:1px solid var(--line);
    padding:22px 16px 20px;
    display:flex;flex-direction:column;gap:22px;
    z-index:40;
  }
  .brand-box{display:flex;align-items:center;gap:10px;}
  .brand-mark{
    width:40px;height:40px;flex:none;border-radius:12px;
    background:var(--brand);color:#fff;
    display:grid;place-items:center;
    font-size:15px;font-weight:700;letter-spacing:.04em;
  }
  .brand-text{min-width:0;}
  .brand-text strong{
    display:block;font-size:13.5px;font-weight:700;color:var(--brand);
    line-height:1.35;letter-spacing:.01em;
  }
  .brand-text span{display:block;font-size:11.5px;color:var(--muted);margin-top:2px;}

  .nav-label{
    display:block;font-size:11px;font-weight:600;color:var(--muted);
    letter-spacing:.14em;text-transform:uppercase;
    padding:0 10px;margin-bottom:8px;
  }
  .side-nav{display:flex;flex-direction:column;gap:2px;}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;
    padding:10px 12px;border-radius:10px;
    font-size:14px;font-weight:500;color:var(--muted);
    transition:background .2s ease,color .2s ease;
  }
  .nav-item i{font-size:14px;width:18px;text-align:center;flex:none;}
  .nav-item:hover{background:var(--brand-tint);color:var(--brand);}
  .nav-item.active{background:var(--brand-tint);color:var(--brand);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:18px;border-radius:0 3px 3px 0;background:var(--accent);
  }
  .side-login{
    margin-top:auto;background:var(--brand-soft);
    border-radius:14px;padding:16px;
  }
  .side-login p{font-size:12.5px;color:var(--muted);line-height:1.65;margin-top:10px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 20px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1.2;
    transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    border:1px solid transparent;
  }
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
  .btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
  .btn-outline:hover{background:var(--brand-tint);transform:translateY(-1px);}
  .btn-ghost{background:var(--brand-soft);color:var(--brand);}
  .btn-ghost:hover{background:#E3EDF4;}
  .btn-block{width:100%;}
  .btn-sm{padding:8px 14px;font-size:13.5px;}

  /* ---------- 主内容 ---------- */
  .main-wrap{flex:1;min-width:0;display:flex;flex-direction:column;}
  .topbar{
    display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:60;
    background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    align-items:center;justify-content:space-between;
    padding:0 14px;gap:10px;
  }
  .topbar .brand-mark{width:34px;height:34px;border-radius:10px;font-size:13px;}
  .topbar-name{
    font-size:13px;font-weight:700;color:var(--brand);line-height:1.3;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .icon-btn{
    width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
    color:var(--brand);background:var(--brand-soft);font-size:15px;flex:none;
    transition:background .2s ease;
  }
  .icon-btn:hover{background:#E3EDF4;}

  .main{
    flex:1;
    padding:34px clamp(16px,3vw,44px) 0;
  }
  .container{max-width:1200px;margin:0 auto;}

  /* ---------- 面包屑 & 标题区 ---------- */
  .crumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);margin-bottom:18px;
  }
  .crumb a{transition:color .2s ease;}
  .crumb a:hover{color:var(--brand);}
  .crumb i{font-size:10px;opacity:.6;}

  .hero-card{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-1);
    overflow:hidden;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  }
  .hero-copy{padding:clamp(22px,3vw,36px);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:7px;
    font-size:12.5px;font-weight:600;color:var(--brand);
    background:var(--brand-soft);border-radius:999px;padding:5px 12px;
    margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
  .page-title{
    font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.28;
    color:var(--brand-dark);letter-spacing:-.01em;
  }
  .page-lead{
    font-size:15.5px;color:var(--muted);line-height:1.85;
    margin-top:14px;max-width:56ch;
  }
  .hero-facts{
    display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
  }
  .fact{
    background:var(--bg);border:1px solid var(--line);border-radius:12px;
    padding:10px 14px;min-width:112px;
  }
  .fact b{
    display:block;font-size:22px;font-weight:700;color:var(--brand);
    font-variant-numeric:tabular-nums;line-height:1.3;
  }
  .fact span{font-size:12.5px;color:var(--muted);}
  .hero-media{position:relative;min-height:240px;background:var(--line);}
  .hero-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}

  /* ---------- 分类切换 chip ---------- */
  .chip-row{
    display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;
  }
  .chip{
    display:inline-flex;align-items:center;gap:7px;
    font-size:13.5px;font-weight:500;color:var(--brand);
    background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:7px 15px;
    transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
  }
  .chip:hover{background:var(--brand-tint);border-color:#CFE0EA;transform:translateY(-1px);}
  .chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

  /* ---------- 板块通用 ---------- */
  .section{margin-top:clamp(40px,5vw,64px);}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:16px;flex-wrap:wrap;margin-bottom:18px;
  }
  .section-title{
    font-size:clamp(21px,2.4vw,28px);font-weight:700;color:var(--brand-dark);
    line-height:1.35;
  }
  .section-sub{font-size:14px;color:var(--muted);margin-top:8px;max-width:60ch;}
  .panel{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-1);
    overflow:hidden;
  }
  .panel-pad{padding:clamp(18px,2.4vw,26px);}

  /* ---------- 筛选 chip ---------- */
  .filter-row{
    display:flex;flex-wrap:wrap;gap:8px;align-items:center;
    padding:16px clamp(16px,2.4vw,24px);
    border-bottom:1px solid var(--line);background:var(--bg);
  }
  .filter-row .label{
    font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.06em;margin-right:4px;
  }
  .filter-chip{
    font-size:13px;font-weight:500;color:var(--brand);
    background:#fff;border:1px solid var(--line);border-radius:999px;
    padding:6px 14px;transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .filter-chip:hover{background:var(--brand-tint);}
  .filter-chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

  /* ---------- 文档行列表 ---------- */
  .doc-list{display:block;}
  .doc-row{
    display:flex;align-items:center;gap:16px;
    padding:15px clamp(16px,2.4vw,24px);
    border-bottom:1px solid var(--line);
    transition:background .2s ease;
  }
  .doc-row:last-child{border-bottom:0;}
  .doc-row:hover{background:var(--bg);}
  .doc-icon{
    width:44px;height:44px;flex:none;border-radius:12px;
    background:var(--brand-soft);color:var(--brand);
    display:grid;place-items:center;font-size:16px;
    transition:background .2s ease,color .2s ease;
  }
  .doc-row:hover .doc-icon{background:var(--brand);color:#fff;}
  .doc-main{flex:1;min-width:0;}
  .doc-title{
    display:block;font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
    transition:color .2s ease;
  }
  .doc-row:hover .doc-title{color:var(--brand);}
  .doc-desc{
    display:block;font-size:13.5px;color:var(--muted);line-height:1.65;margin-top:3px;
  }
  .doc-tag{
    display:inline-block;font-size:11.5px;font-weight:600;
    color:var(--brand);background:var(--brand-soft);
    border-radius:999px;padding:2px 9px;margin-right:8px;vertical-align:1px;
  }
  .doc-meta{
    font-size:12.5px;color:var(--muted);white-space:nowrap;flex:none;
  }
  .doc-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:13.5px;font-weight:600;color:var(--brand);white-space:nowrap;flex:none;
  }
  .doc-link i{font-size:11px;transition:transform .2s ease;}
  .doc-row:hover .doc-link i{transform:translateX(3px);}
  .doc-row.is-hidden{display:none;}

  /* ---------- 阅读顺序三步 ---------- */
  .steps-grid{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;margin-top:16px;
  }
  .step-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:clamp(18px,2.2vw,24px);box-shadow:var(--shadow-1);
    transition:transform .2s ease,box-shadow .2s ease;
    position:relative;overflow:hidden;
  }
  .step-card::after{
    content:attr(data-step);
    position:absolute;right:14px;top:6px;
    font-size:44px;font-weight:700;color:var(--brand-soft);
    line-height:1;font-variant-numeric:tabular-nums;
  }
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .step-card h3{font-size:17px;font-weight:600;color:var(--brand-dark);position:relative;}
  .step-card p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:8px;position:relative;}

  /* ---------- 更新记录时间线 ---------- */
  .timeline{position:relative;padding-left:22px;}
  .timeline::before{
    content:"";position:absolute;left:5px;top:8px;bottom:8px;
    width:2px;background:var(--line);border-radius:2px;
  }
  .timeline-item{position:relative;padding:0 0 20px 0;}
  .timeline-item:last-child{padding-bottom:0;}
  .timeline-item::before{
    content:"";position:absolute;left:-22px;top:7px;
    width:12px;height:12px;border-radius:50%;
    background:#fff;border:2px solid var(--accent);
  }
  .timeline-date{
    font-size:12.5px;font-weight:600;color:var(--accent);
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }
  .timeline-item h4{font-size:15.5px;font-weight:600;color:var(--text);margin-top:4px;}
  .timeline-item p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:4px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow-1);overflow:hidden;
    transition:box-shadow .2s ease;
  }
  .faq-item:hover{box-shadow:var(--shadow-2);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:16px 20px;text-align:left;
    font-size:15.5px;font-weight:600;color:var(--text);line-height:1.55;
  }
  .faq-q .mark{
    width:26px;height:26px;flex:none;border-radius:8px;
    background:var(--brand-soft);color:var(--brand);
    display:grid;place-items:center;font-size:12px;
    transition:background .2s ease,color .2s ease,transform .25s ease;
  }
  .faq-item.open .faq-q .mark{background:var(--brand);color:#fff;transform:rotate(180deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .3s ease;
  }
  .faq-a-inner{
    margin:0 20px 18px;padding:14px 16px;
    background:var(--bg);border-radius:12px;
    font-size:14px;color:var(--muted);line-height:1.85;
  }

  /* ---------- CTA 表单 ---------- */
  .cta-block{
    position:relative;border-radius:var(--radius-card);overflow:hidden;
    border:1px solid var(--line);background:var(--card);
    box-shadow:var(--shadow-1);
  }
  .cta-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;
    opacity:.10;
  }
  .cta-inner{
    position:relative;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
    gap:clamp(20px,3vw,40px);padding:clamp(22px,3vw,38px);
    align-items:start;
  }
  .cta-inner h2{
    font-size:clamp(21px,2.5vw,28px);font-weight:700;color:var(--brand-dark);line-height:1.35;
  }
  .cta-inner .cta-desc{font-size:14.5px;color:var(--muted);margin-top:10px;max-width:46ch;}
  .check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
  .check-list li{
    display:flex;gap:10px;font-size:14.5px;color:var(--text);line-height:1.7;
  }
  .check-list i{color:var(--accent);font-size:13px;margin-top:5px;flex:none;}

  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:20px;box-shadow:var(--shadow-1);
  }
  .field{margin-bottom:14px;}
  .field label{
    display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:6px;
  }
  .field input,.field textarea{
    width:100%;height:44px;padding:0 13px;
    border:1px solid var(--line);border-radius:var(--radius-btn);
    background:#fff;color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:88px;padding:11px 13px;resize:vertical;line-height:1.6;}
  .field input::placeholder,.field textarea::placeholder{color:#A3B2BE;}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,77,107,.14);
  }
  .field-note{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.6;}
  .form-tip{
    font-size:13px;color:var(--brand);background:var(--brand-soft);
    border-radius:10px;padding:10px 12px;margin-top:12px;line-height:1.65;display:none;
  }
  .form-tip.show{display:block;}

  /* ---------- 页脚 ---------- */
  .footer{
    margin-top:clamp(44px,5vw,72px);
    background:var(--brand-dark);color:#B9CCD9;
    padding:clamp(30px,4vw,46px) clamp(16px,3vw,44px) 22px;
  }
  .footer-inner{max-width:1200px;margin:0 auto;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:clamp(20px,3vw,40px);
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
  .footer-brand .brand-mark{background:var(--accent);color:#fff;}
  .footer-brand strong{font-size:14.5px;color:#fff;font-weight:700;line-height:1.4;}
  .footer p{font-size:13px;line-height:1.85;color:#B9CCD9;}
  .footer h4{
    font-size:13px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:12px;
  }
  .footer-links{display:flex;flex-direction:column;gap:9px;}
  .footer-links a{
    font-size:13px;color:#B9CCD9;transition:color .2s ease;
  }
  .footer-links a:hover{color:#fff;}
  .footer-bottom{
    margin-top:28px;padding-top:16px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12.5px;color:#8FA9BA;
  }

  /* ---------- 遮罩 ---------- */
  .scrim{
    display:none;position:fixed;inset:0;background:rgba(20,60,84,.42);
    z-index:50;
  }
  .scrim.show{display:block;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .topbar{display:flex;}
    .main{padding-top:82px;}
    .sidebar{
      position:fixed;top:0;left:0;bottom:0;height:100vh;
      transform:translateX(-100%);
      transition:transform .28s ease;
      box-shadow:var(--shadow-2);
      width:264px;flex:0 0 264px;
    }
    .sidebar.open{transform:translateX(0);}
    .hero-card{grid-template-columns:minmax(0,1fr);}
    .hero-media{min-height:200px;order:-1;}
    .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-inner{grid-template-columns:minmax(0,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:767px){
    .doc-row{gap:12px;align-items:flex-start;}
    .doc-meta{display:none;}
    .doc-link span{display:none;}
    .doc-link i{font-size:13px;}
    .steps-grid{grid-template-columns:minmax(0,1fr);}
    .section-head{align-items:flex-start;}
  }
  @media (max-width:519px){
    body{font-size:15px;}
    .fact{flex:1 1 44%;min-width:0;}
    .footer-grid{grid-template-columns:1fr;}
    .filter-row{gap:6px;}
    .filter-chip{font-size:12.5px;padding:6px 12px;}
    .hero-copy{padding:20px;}
    .doc-desc{font-size:13px;}
  }

/* roulang page: category5 */
:root{
    --primary:#1B4D6B;
    --primary-dark:#143C54;
    --primary-soft:#EEF4F8;
    --primary-soft-2:#F1F6FA;
    --accent:#E08A3C;
    --accent-soft:rgba(224,138,60,.12);
    --bg:#F7F9FB;
    --card:#FFFFFF;
    --border:#E3EAF0;
    --text:#2C3A45;
    --muted:#6B7C89;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-img:12px;
    --shadow-1:0 8px 24px rgba(27,77,107,.08);
    --shadow-2:0 14px 34px rgba(27,77,107,.14);
    --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-sans);
    font-size:15.5px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button,input,textarea{font:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--primary-dark);}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

  /* ---------- App Shell ---------- */
  .side-nav{
    position:fixed;
    top:0;left:0;bottom:0;
    width:240px;
    background:#fff;
    border-right:1px solid var(--border);
    padding:22px 16px 20px;
    display:flex;
    flex-direction:column;
    gap:4px;
    overflow-y:auto;
    z-index:80;
  }
  .brand{
    display:flex;align-items:center;gap:10px;
    padding:2px 6px 16px;
    border-bottom:1px solid var(--border);
    margin-bottom:14px;
  }
  .brand-mark{
    width:40px;height:40px;border-radius:12px;
    background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;letter-spacing:.5px;
    flex:0 0 auto;
  }
  .brand-text strong{display:block;font-size:13.5px;font-weight:700;color:var(--primary-dark);line-height:1.4;}
  .brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.03em;}
  .nav-label{font-size:11px;letter-spacing:.14em;color:#9AAAB6;padding:4px 10px 8px;}
  .nav-item{
    display:flex;align-items:center;gap:10px;
    height:42px;padding:0 10px;border-radius:10px;
    font-size:14px;font-weight:500;color:var(--muted);
    border-left:3px solid transparent;
    transition:background .2s,color .2s,border-color .2s;
  }
  .nav-item i{width:18px;text-align:center;font-size:15px;color:#9AAAB6;transition:color .2s;}
  .nav-item:hover{background:var(--primary-soft-2);color:var(--primary);}
  .nav-item:hover i{color:var(--primary);}
  .nav-item.active{background:var(--primary-soft-2);color:var(--primary);border-left-color:var(--accent);font-weight:600;}
  .nav-item.active i{color:var(--primary);}
  .nav-card{
    margin-top:auto;
    background:var(--primary-soft);
    border-radius:14px;
    padding:14px;
    margin-top:24px;
  }
  .nav-card strong{display:block;font-size:13.5px;color:var(--primary-dark);margin-bottom:6px;}
  .nav-card p{font-size:12.5px;line-height:1.7;color:var(--muted);margin-bottom:12px;}

  /* ---------- 移动端顶栏与抽屉 ---------- */
  .mobile-bar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:60px;
    align-items:center;gap:10px;padding:0 14px;
    background:rgba(255,255,255,.97);
    border-bottom:1px solid var(--border);
    z-index:90;
  }
  .bar-btn{
    width:38px;height:38px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    color:var(--primary);background:var(--primary-soft);
    flex:0 0 auto;transition:background .2s;
  }
  .bar-btn:hover{background:#E4EEF5;}
  .bar-brand{display:flex;align-items:center;gap:8px;flex:1;min-width:0;font-size:13.5px;font-weight:700;color:var(--primary-dark);}
  .bar-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:12px;}
  .bar-brand span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .drawer{
    position:fixed;inset:0;background:#fff;z-index:95;
    display:none;flex-direction:column;
    padding:18px 18px 28px;overflow-y:auto;
  }
  .drawer.open{display:flex;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .drawer-title{font-size:12px;letter-spacing:.14em;color:#9AAAB6;}
  .drawer-close{
    width:38px;height:38px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    color:var(--primary);background:var(--primary-soft);
  }
  .drawer-group{font-size:12px;letter-spacing:.08em;color:#9AAAB6;margin:12px 0 8px;text-transform:uppercase;}
  .drawer-item{
    display:flex;align-items:center;gap:10px;
    height:44px;padding:0 12px;border-radius:10px;
    font-size:15px;color:var(--text);
    border-left:3px solid transparent;
    transition:background .2s,color .2s;
  }
  .drawer-item:hover{background:var(--primary-soft-2);color:var(--primary);}
  .drawer-item.active{background:var(--primary-soft-2);color:var(--primary);border-left-color:var(--accent);font-weight:600;}
  .drawer-cta{margin-top:22px;}

  /* ---------- 布局 ---------- */
  .main-wrap{
    margin-left:240px;
    display:flex;flex-direction:column;
    min-height:100vh;
  }
  .page{
    width:100%;max-width:1200px;margin:0 auto;
    padding:34px 40px 0;
    flex:1 0 auto;
  }

  /* ---------- 通用组件 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);
    padding:12px 22px;
    font-size:15px;font-weight:600;
    border:1px solid transparent;
    transition:background .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
  .btn-ghost:hover{background:var(--primary-soft-2);}
  .btn-soft{background:var(--primary-soft);color:var(--primary);}
  .btn-soft:hover{background:#E4EEF5;}
  .btn-block{width:100%;}
  .btn-sm{padding:8px 14px;font-size:13px;}

  .chip-row{display:flex;flex-wrap:wrap;gap:10px;}
  .chip{
    font-size:13.5px;padding:7px 15px;border-radius:999px;
    border:1px solid var(--border);background:#fff;color:var(--muted);
    transition:background .2s,color .2s,border-color .2s;
  }
  .chip:hover{background:var(--primary-soft-2);color:var(--primary);border-color:#CFE0EA;}
  .chip.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}

  .pill{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12.5px;padding:4px 11px;border-radius:999px;
    background:var(--primary-soft);color:var(--primary);font-weight:500;
  }
  .pill-accent{background:var(--accent-soft);color:#B96A22;}

  .section{margin-top:64px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap;}
  .section-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.01em;}
  .section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:64ch;}
  .link-more{font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
  .link-more:hover{text-decoration:underline;text-underline-offset:3px;}

  /* ---------- Hero ---------- */
  .hero{
    background:#fff;border:1px solid var(--border);
    border-radius:20px;padding:32px;
    box-shadow:var(--shadow-1);
  }
  .crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:18px;}
  .crumbs a{transition:color .2s;}
  .crumbs a:hover{color:var(--primary);}
  .crumbs i{font-size:9px;color:#B7C6D1;}
  .hero .chip-row{margin-bottom:24px;}
  .hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:34px;align-items:center;}
  .hero h1{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.015em;line-height:1.25;}
  .hero .lede{margin-top:14px;font-size:16px;line-height:1.85;color:#4A5B68;max-width:58ch;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .hero-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);background:#E3EAF0;}
  .hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
  .hero-figure::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(20,60,84,0) 45%,rgba(20,60,84,.62));
  }
  .hero-figure figcaption{
    position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
    font-size:12.5px;color:#fff;line-height:1.6;
  }
  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px;}
  .stat{background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:14px 16px;}
  .stat b{
    display:block;font-size:26px;line-height:1.2;color:var(--primary);
    font-variant-numeric:tabular-nums;letter-spacing:-.01em;
  }
  .stat span{font-size:12.5px;color:var(--muted);}

  /* ---------- 重点文档 ---------- */
  .feature-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;}
  .feature-main{
    position:relative;border-radius:var(--radius-card);overflow:hidden;
    min-height:340px;box-shadow:var(--shadow-1);background:#E3EAF0;
  }
  .feature-main img{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
    transition:transform .4s ease;
  }
  .feature-main:hover img{transform:scale(1.03);}
  .feature-main .overlay{
    position:relative;z-index:2;min-height:340px;
    display:flex;flex-direction:column;justify-content:flex-end;
    padding:28px;
    background:linear-gradient(180deg,rgba(20,60,84,.08) 20%,rgba(20,60,84,.86));
  }
  .feature-main .overlay .pill{background:rgba(255,255,255,.2);color:#fff;width:fit-content;}
  .feature-main h3{color:#fff;font-size:22px;margin-top:12px;}
  .feature-main p{color:#D3E1EA;font-size:14px;line-height:1.8;margin-top:8px;max-width:44ch;}
  .feature-main .open{
    margin-top:16px;display:inline-flex;align-items:center;gap:8px;
    font-size:14px;font-weight:600;color:#fff;
  }
  .feature-main .open i{transition:transform .2s;}
  .feature-main:hover .open i{transform:translateX(4px);}
  .feature-side{display:grid;gap:20px;align-content:stretch;}
  .feature-mini{
    display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:14px;box-shadow:var(--shadow-1);
    transition:transform .24s,box-shadow .24s;
  }
  .feature-mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .feature-mini img{width:120px;height:100%;min-height:96px;object-fit:cover;border-radius:var(--radius-img);}
  .feature-mini h3{font-size:17px;line-height:1.45;}
  .feature-mini p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7;}
  .feature-mini .tag{font-size:12px;color:var(--primary);font-weight:600;margin-bottom:6px;display:block;}

  /* ---------- 文档行列表 ---------- */
  .filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
  .doc-list{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);}
  .doc-row{
    display:grid;grid-template-columns:46px 1fr auto;gap:16px;align-items:center;
    padding:16px 20px;border-bottom:1px solid var(--border);
    transition:background .2s;
  }
  .doc-row:last-child{border-bottom:0;}
  .doc-row:hover{background:var(--bg);}
  .doc-row.hide{display:none;}
  .doc-ico{
    width:46px;height:46px;border-radius:12px;
    background:var(--primary-soft);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:17px;
  }
  .doc-row h3{font-size:16px;color:var(--primary-dark);}
  .doc-row p{font-size:13.5px;color:var(--muted);margin-top:4px;line-height:1.7;}
  .doc-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:#8697A3;margin-top:6px;}
  .doc-meta span{display:inline-flex;align-items:center;gap:5px;}
  .doc-open{
    font-size:13.5px;font-weight:600;color:var(--primary);
    display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  }
  .doc-open:hover{text-decoration:underline;text-underline-offset:3px;}
  .doc-open i{font-size:11px;}
  .empty-note{
    display:none;text-align:center;padding:34px 20px;
    background:#fff;border:1px dashed var(--border);border-radius:var(--radius-card);
    margin-top:16px;
  }
  .empty-note.show{display:block;}
  .empty-note i{font-size:30px;color:#AFC2CE;}
  .empty-note p{font-size:14px;color:var(--muted);margin-top:10px;}

  /* ---------- 查阅步骤 ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .step{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:22px;box-shadow:var(--shadow-1);position:relative;
    transition:transform .24s,box-shadow .24s;
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .step .num{
    font-size:22px;font-weight:700;color:var(--accent);
    font-variant-numeric:tabular-nums;letter-spacing:.04em;
  }
  .step h3{font-size:17px;margin-top:8px;}
  .step p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.8;}

  /* ---------- 反馈墙 ---------- */
  .wall{columns:3;column-gap:20px;}
  .quote{
    break-inside:avoid;
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:20px;margin-bottom:20px;box-shadow:var(--shadow-1);
    transition:transform .24s,box-shadow .24s;
  }
  .quote:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .quote .mark{font-size:13px;color:var(--accent);margin-bottom:8px;}
  .quote p{font-size:14px;line-height:1.85;color:#3C4C58;}
  .quote-foot{
    display:flex;align-items:center;gap:10px;
    margin-top:14px;padding-top:14px;border-top:1px dashed var(--border);
  }
  .avatar{
    width:32px;height:32px;border-radius:50%;
    background:var(--primary-soft);color:var(--primary);
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:700;flex:0 0 auto;
  }
  .quote-foot strong{display:block;font-size:13px;color:var(--primary-dark);font-weight:600;}
  .quote-foot small{display:block;font-size:12px;color:#8697A3;}

  /* ---------- FAQ ---------- */
  .faq{display:grid;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:14px;
    box-shadow:var(--shadow-1);overflow:hidden;
    transition:border-color .2s;
  }
  .faq-item.open{border-color:#CFE0EA;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;text-align:left;
    font-size:15.5px;font-weight:600;color:var(--primary-dark);
  }
  .faq-q:hover{color:var(--primary);}
  .faq-q i{font-size:14px;color:var(--primary);transition:transform .24s;flex:0 0 auto;}
  .faq-item.open .faq-q i{transform:rotate(45deg);}
  .faq-a{display:none;padding:0 20px 18px;font-size:14px;line-height:1.85;color:#4A5B68;}
  .faq-a .inner{background:var(--bg);border-radius:12px;padding:14px 16px;}
  .faq-item.open .faq-a{display:block;}

  /* ---------- CTA / 表单 ---------- */
  .cta{
    display:grid;grid-template-columns:1.05fr .95fr;gap:30px;
    background:var(--primary-soft);
    border:1px solid #DCE8F0;border-radius:20px;
    padding:32px;
  }
  .cta h2{font-size:clamp(21px,2.4vw,28px);}
  .cta .sub{font-size:14.5px;color:#4A5B68;margin-top:10px;line-height:1.85;max-width:46ch;}
  .check-list{margin-top:18px;display:grid;gap:10px;}
  .check-list li{display:flex;gap:10px;font-size:14.5px;color:#3C4C58;line-height:1.75;}
  .check-list i{color:var(--accent);font-size:14px;margin-top:5px;}
  .form-card{
    background:#fff;border:1px solid var(--border);
    border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);
  }
  .field{margin-bottom:14px;}
  .field:last-of-type{margin-bottom:16px;}
  .field label{display:block;font-size:13.5px;font-weight:600;color:var(--primary-dark);margin-bottom:6px;}
  .field input,.field textarea{
    width:100%;border:1px solid var(--border);border-radius:var(--radius-btn);
    background:#fff;font-size:14px;color:var(--text);
    transition:border-color .2s,box-shadow .2s;
  }
  .field input{height:44px;padding:0 14px;}
  .field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
  .field input::placeholder,.field textarea::placeholder{color:#A3B2BD;}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(27,77,107,.12);
  }
  .hint{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.7;}

  /* ---------- 页脚 ---------- */
  .footer{
    background:var(--primary-dark);
    color:#B9CCD9;
    margin-top:72px;
    padding:48px 40px 26px;
  }
  .footer-inner{max-width:1200px;margin:0 auto;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;width:36px;height:36px;border-radius:10px;font-size:13px;}
  .footer-brand strong{color:#fff;font-size:15px;font-weight:700;}
  .footer h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.02em;}
  .footer p{font-size:13px;line-height:1.85;color:#A9BFCE;}
  .footer-links{display:flex;flex-direction:column;gap:9px;}
  .footer-links a{font-size:13px;color:#B9CCD9;transition:color .2s;}
  .footer-links a:hover{color:#fff;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);
    margin-top:36px;padding-top:18px;
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:12.5px;color:#8FA9BB;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .page{padding:30px 28px 0;}
    .footer{padding:44px 28px 24px;}
  }
  @media (max-width:1023px){
    .side-nav{display:none;}
    .mobile-bar{display:flex;}
    .main-wrap{margin-left:0;padding-top:60px;}
    .page{padding:24px 18px 0;}
    .footer{margin-top:56px;padding:40px 18px 22px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
    .hero{padding:24px;}
    .hero-grid{grid-template-columns:1fr;gap:24px;}
    .hero-figure{order:-1;}
    .hero-figure img{aspect-ratio:16/9;}
    .feature-grid{grid-template-columns:1fr;}
    .feature-main{min-height:280px;}
    .feature-main .overlay{min-height:280px;padding:22px;}
    .cta{grid-template-columns:1fr;padding:24px;}
    .wall{columns:2;}
    .steps{grid-template-columns:1fr;gap:14px;}
    .section{margin-top:48px;}
  }
  @media (max-width:767px){
    .stat-row{grid-template-columns:1fr;gap:10px;}
    .stat{display:flex;align-items:baseline;gap:10px;}
    .stat b{font-size:22px;}
    .feature-mini{grid-template-columns:96px 1fr;}
    .feature-mini img{width:96px;min-height:88px;}
  }
  @media (max-width:639px){
    body{font-size:15px;}
    .doc-row{grid-template-columns:42px 1fr;gap:12px;padding:14px 16px;}
    .doc-open{grid-column:2;justify-self:start;margin-top:2px;}
    .doc-ico{width:42px;height:42px;font-size:16px;}
    .wall{columns:1;}
    .footer-grid{grid-template-columns:1fr;gap:22px;}
    .footer-bottom{flex-direction:column;gap:6px;}
    .hero{padding:20px;border-radius:16px;}
    .cta{padding:20px;border-radius:16px;}
    .form-card{padding:18px;}
    .section{margin-top:40px;}
  }