/* roulang page: index */
:root{
  --brand:#0F5C7A;
  --brand-deep:#0C4A63;
  --brand-soft:#E6F1F6;
  --accent:#E9A03B;
  --accent-hover:#D18F2C;
  --accent-soft:#FDF3E3;
  --page:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3E9EF;
  --ink:#16232E;
  --ink-sub:#5B6B7A;
  --dark:#0C2733;
  --danger:#C2412F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(12,39,51,.04),0 12px 28px -12px rgba(12,39,51,.16);
  --shadow-hover:0 20px 40px -16px rgba(12,39,51,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 容器与主体 ---------- */
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.main-wrap{min-height:100vh;padding-top:64px}
@media (min-width:1024px){
  .main-wrap{padding-top:0;padding-left:248px}
}
section{padding:64px 0}
@media (min-width:768px){ section{padding:88px 0} }
@media (min-width:1024px){ section{padding:104px 0} }

/* ---------- 侧边壳层导航 ---------- */
.shell{
  position:fixed;top:0;left:0;bottom:0;width:248px;z-index:70;
  background:#FFFFFF;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  transform:translateX(-100%);
  transition:transform .22s ease-out;
  box-shadow:0 1px 2px rgba(12,39,51,.04);
}
.shell.open{transform:translateX(0)}
@media (min-width:1024px){
  .shell{transform:translateX(0);box-shadow:none}
  .shell-close,.burger{display:none}
}
.shell-top{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 18px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;
}
.brand-text{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:.2px}
.shell-close{
  width:36px;height:36px;border:1px solid var(--line);background:#fff;
  border-radius:10px;font-size:20px;line-height:1;color:var(--ink-sub);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .18s ease-out,color .18s ease-out;
}
.shell-close:hover{background:var(--brand-soft);color:var(--brand)}
.shell-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1 1 auto}
.shell-link{
  position:relative;display:flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:10px;font-size:15px;color:var(--ink-sub);
  transition:background .18s ease-out,color .18s ease-out;
}
.shell-link:hover{background:#F2F6F9;color:var(--brand)}
.shell-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.shell-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--brand);
}
.shell-foot{padding:18px 20px 24px;border-top:1px solid var(--line)}
.shell-foot-title{font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.4px;margin-bottom:8px}
.shell-foot-line{font-size:13px;color:var(--ink-sub);line-height:1.9}
.shell-cta{margin-top:14px;width:100%;justify-content:center}
.shell-mask{
  position:fixed;inset:0;background:rgba(12,39,51,.42);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.shell-mask.show{opacity:1;visibility:visible}
@media (min-width:1024px){ .shell-mask{display:none} }
body.lock{overflow:hidden}
@media (min-width:1024px){ body.lock{overflow:auto} }

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;padding:0 16px;
}
@media (min-width:1024px){ .mobile-bar{display:none} }
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.burger:hover{background:var(--brand-soft);border-color:var(--brand-soft)}
.burger-line{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px -10px rgba(233,160,59,.85)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(233,160,59,.9)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9DCE5}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-dark{background:#12384A;color:#fff;border-color:rgba(230,241,246,.28)}
.btn-dark:hover{background:#0F5C7A;transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.2px;
}
.pill-accent{background:var(--accent-soft);color:#8A5A11}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-solid{background:rgba(255,255,255,.92);color:var(--brand);box-shadow:0 1px 2px rgba(12,39,51,.12)}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:720px;margin-bottom:36px}
.sec-eyebrow{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:1.2px;text-transform:uppercase;margin-bottom:10px}
.sec-title{font-size:26px;line-height:1.4;font-weight:600;color:var(--ink)}
@media (min-width:768px){ .sec-title{font-size:30px} }
@media (min-width:1024px){ .sec-title{font-size:32px} }
.sec-desc{margin-top:14px;font-size:16px;color:var(--ink-sub);line-height:1.85}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:#fff;padding:56px 0 64px;border-bottom:1px solid var(--line)}
@media (min-width:1024px){ .hero{padding:84px 0 96px} }
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,#FFFFFF 8%,rgba(255,255,255,.86) 46%,rgba(255,255,255,.42) 100%);
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;gap:44px;align-items:center}
@media (min-width:1024px){ .hero-grid{grid-template-columns:7fr 5fr;gap:56px} }
.hero h1{
  margin:18px 0 0;font-size:28px;line-height:1.4;font-weight:600;color:var(--ink);letter-spacing:-.2px;
}
@media (min-width:768px){ .hero h1{font-size:36px} }
@media (min-width:1024px){ .hero h1{font-size:42px;line-height:1.32} }
.hero-lead{margin-top:18px;font-size:16px;line-height:1.9;color:var(--ink-sub);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:grid;gap:10px;margin-top:30px}
@media (min-width:640px){ .hero-points{grid-template-columns:1fr 1fr} }
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-sub)}
.hero-points li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:6px;border-radius:50%;
  background:var(--brand-soft);
  box-shadow:inset 0 0 0 2px var(--brand);
}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);border:1px solid rgba(227,233,239,.9);
}
.hero-float{
  position:absolute;left:-8px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:16px 20px;min-width:200px;
}
@media (min-width:1024px){ .hero-float{left:-28px;bottom:-24px} }
.hero-float-label{display:block;font-size:12px;color:var(--ink-sub);letter-spacing:.6px}
.hero-float strong{display:block;font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.4}
.hero-float-sub{display:block;font-size:12px;color:var(--ink-sub)}

/* ---------- 数据条 ---------- */
.stats{border-bottom:1px solid var(--line);background:#fff;padding:32px 0}
.stats-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:1024px){ .stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px} }
.stat{padding-left:16px;border-left:3px solid var(--brand-soft)}
.stat strong{display:block;font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.35}
.stat span{display:block;font-size:14px;color:var(--ink-sub);margin-top:4px}

/* ---------- 步骤卡 ---------- */
.steps-grid{display:grid;gap:24px}
@media (min-width:768px){ .steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
.step-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:30px 26px 28px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.step-card::before{content:"";position:absolute;top:0;left:26px;right:26px;height:2px;background:var(--brand);opacity:.85}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-num{
  position:absolute;right:18px;top:6px;font-size:64px;font-weight:700;line-height:1;
  color:var(--brand-soft);font-variant-numeric:tabular-nums;user-select:none;
}
.step-card h3{position:relative;font-size:19px;font-weight:600;color:var(--ink);margin-bottom:10px}
.step-card p{position:relative;font-size:15px;color:var(--ink-sub);line-height:1.85}
.step-meta{position:relative;display:inline-block;margin-top:16px;font-size:13px;color:var(--brand);font-weight:600}

/* ---------- 能力清单 ---------- */
.ability-grid{display:grid;gap:24px}
@media (min-width:1024px){ .ability-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start} }
.ability-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
.ability-side h3{font-size:20px;font-weight:600;margin-bottom:12px}
.ability-side p{font-size:15px;color:var(--ink-sub);line-height:1.85}
.ability-side .btn{margin-top:20px}
.ability-list{display:grid;gap:16px}
@media (min-width:768px){ .ability-list{grid-template-columns:1fr 1fr} }
.ability-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.ability-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0E8}
.ability-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.ability-item p{font-size:14.5px;color:var(--ink-sub);line-height:1.85}
.ability-item .tag{margin-bottom:12px}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;gap:24px}
@media (min-width:1024px){ .case-grid{grid-template-columns:1fr 1fr} }
.case-card{
  display:grid;grid-template-columns:1fr;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
@media (min-width:560px){ .case-card{grid-template-columns:2fr 3fr} }
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.case-card img{width:100%;height:100%;min-height:200px;object-fit:cover}
.case-body{padding:26px 24px}
.case-body h3{font-size:18px;font-weight:600;margin:12px 0 10px}
.case-body p{font-size:14.5px;color:var(--ink-sub);line-height:1.85}
.case-metrics{display:flex;gap:26px;margin-top:20px;flex-wrap:wrap}
.case-metrics strong{display:block;font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.case-metrics span{display:block;font-size:12.5px;color:var(--ink-sub)}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;gap:24px}
@media (min-width:640px){ .post-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .post-grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-thumb .tag{position:absolute;top:12px;left:12px}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-body h3{
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease-out;
}
.post-card:hover .post-body h3{color:var(--brand)}
.post-body p{
  font-size:14px;color:var(--ink-sub);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-sub);border-top:1px dashed var(--line);
}
.post-foot .go{color:var(--brand);font-weight:600}
.empty-state{
  background:#fff;border:1px dashed #C9DCE5;border-radius:var(--radius-card);
  padding:44px 24px;text-align:center;
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;font-weight:700;
}
.empty-state strong{display:block;font-size:16px;color:var(--ink);font-weight:600}
.empty-state span{display:block;font-size:14px;color:var(--ink-sub);margin-top:6px}

/* ---------- CTA 条 ---------- */
.cta-bar{background:var(--dark);border-radius:16px;padding:36px 28px;color:#fff;display:grid;gap:22px;align-items:center}
@media (min-width:768px){ .cta-bar{grid-template-columns:1fr auto;padding:44px 44px} }
.cta-bar h2{font-size:22px;font-weight:600;line-height:1.5}
.cta-bar p{margin-top:8px;font-size:15px;color:#A9C4D0;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-section{padding:0 0 88px}
@media (min-width:1024px){ .cta-section{padding:0 0 104px} }

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:box-shadow .2s ease-out,border-color .2s ease-out}
.faq-item:hover{box-shadow:var(--shadow-card);border-color:#CFE0E8}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 24px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:600;line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-item[open]{border-color:#CFE0E8;box-shadow:var(--shadow-card)}
.faq-a{padding:0 24px 22px;font-size:15px;color:var(--ink-sub);line-height:1.9}

/* ---------- 表单 ---------- */
.apply-grid{display:grid;gap:28px}
@media (min-width:1024px){ .apply-grid{grid-template-columns:5fr 7fr;gap:44px;align-items:start} }
.apply-aside{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
.apply-aside h3{font-size:20px;font-weight:600;margin-bottom:14px}
.apply-aside p{font-size:15px;color:var(--ink-sub);line-height:1.85}
.apply-aside ul{margin-top:20px;display:grid;gap:12px}
.apply-aside li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-sub)}
.apply-aside li::before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
@media (min-width:768px){ .form-card{padding:34px} }
.form-card h3{font-size:20px;font-weight:600;margin-bottom:6px}
.form-hint{font-size:14px;color:var(--ink-sub);margin-bottom:24px}
.form-grid{display:grid;gap:18px}
@media (min-width:768px){ .form-grid{grid-template-columns:1fr 1fr} .form-full{grid-column:1 / -1} }
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--danger);margin-left:4px}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;font-size:15px;line-height:1.6;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field textarea{min-height:112px;resize:vertical}
.field input:hover,.field textarea:hover{border-color:#C9DCE5}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,92,122,.18);background:#fff;
}
.field input::placeholder,.field textarea::placeholder{color:#9AAAB6}
.field.err input,.field.err textarea{border-color:var(--danger)}
.field.err .msg{display:block;font-size:13px;color:var(--danger);margin-top:6px}
.field .msg{display:none}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-sub);line-height:1.7}
.agree input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto}
.form-actions{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.form-actions .btn{flex:1 1 auto;min-width:180px}
@media (min-width:640px){ .form-actions .btn{flex:0 0 auto} }
.form-note{font-size:13px;color:var(--ink-sub)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C6D8E1;margin-top:0}
.footer-top{border-top:2px solid var(--brand);padding:56px 0 36px}
.footer-grid{display:grid;gap:34px}
@media (min-width:768px){ .footer-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#1B7A9E,#0C4A63)}
.footer-brand span{font-size:17px;font-weight:600;color:#fff}
.footer-about{font-size:14px;line-height:1.9;color:#9FBAC7;max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col li span{font-size:14px;color:#9FBAC7;transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand-soft)}
.footer-bottom{
  border-top:1px solid rgba(198,216,225,.16);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8AA6B4;
}
.footer-bottom a{color:#8AA6B4}
.footer-bottom a:hover{color:var(--brand-soft)}

/* ---------- 无障碍与动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}
#apply,#steps,#posts,#faq{scroll-margin-top:84px}
@media (min-width:1024px){ #apply,#steps,#posts,#faq{scroll-margin-top:40px} }

/* roulang page: article */
:root{
  --brand:#0F5C7A;
  --brand-dark:#0C4A63;
  --brand-soft:#E6F1F6;
  --accent:#E9A03B;
  --accent-hover:#D18F2C;
  --accent-soft:#FDF3E3;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3E9EF;
  --ink:#16232E;
  --ink-soft:#5B6B7A;
  --dark:#0C2733;
  --danger:#C2412F;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 1px 2px rgba(12,39,51,.04),0 12px 28px -12px rgba(12,39,51,.16);
  --shadow-hover:0 20px 40px -16px rgba(12,39,51,.22);
  --shell-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.page-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.page-body img{max-width:100%;display:block}
.page-body a{color:inherit;text-decoration:none}
.page-body button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.page-body ul,.page-body ol{margin:0;padding:0;list-style:none}
.page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;line-height:1.3;font-weight:600;letter-spacing:.2px}
.page-body p{margin:0}
.page-body a:focus-visible,.page-body button:focus-visible,.page-body input:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 左侧 App Shell ============ */
.app-shell{
  position:fixed;left:0;top:0;bottom:0;width:280px;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:22px 16px;z-index:60;overflow-y:auto;
  transform:translateX(-100%);
  transition:transform .22s ease-out;
  box-shadow:0 20px 40px -20px rgba(12,39,51,.28);
}
.app-shell.is-open{transform:translateX(0)}
.shell-brand{display:flex;align-items:center;gap:10px;padding:6px 8px 20px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:700;font-size:17px;line-height:1;
}
.brand-text{font-size:17px;font-weight:600;color:var(--ink)}
.shell-nav{display:flex;flex-direction:column;gap:4px}
.shell-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--ink-soft);
  transition:background .18s ease-out,color .18s ease-out;
}
.shell-link:hover{background:#F1F6F9;color:var(--brand-dark)}
.shell-link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.shell-link.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.shell-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.shell-foot-label{font-size:12px;letter-spacing:1px;color:var(--ink-soft);text-transform:uppercase}
.shell-foot-mail{font-size:14px;color:var(--ink);margin:6px 0 14px;word-break:break-all}
.shell-cta{width:100%}
.shell-mask{
  position:fixed;inset:0;background:rgba(12,39,51,.4);
  opacity:0;pointer-events:none;transition:opacity .22s ease-out;z-index:55;
}
.shell-mask.is-open{opacity:1;pointer-events:auto}

/* ============ 主体 ============ */
.app-main{min-height:100vh;display:flex;flex-direction:column}
.mobile-bar{
  position:sticky;top:0;z-index:50;height:64px;
  display:flex;align-items:center;gap:12px;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600}
.mobile-bar .btn{margin-left:auto}
.shell-toggle{
  width:44px;height:44px;flex:none;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.shell-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);transition:width .18s ease-out}
.shell-toggle:hover{background:var(--brand-soft);border-color:#C9DCE6}
.shell-toggle:active span:first-child{width:13px}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 20px -12px rgba(233,160,59,.9)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(233,160,59,.95)}
.btn-accent:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(233,160,59,.9)}
.btn-outline{background:#fff;border:1px solid var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.4px;
}
.badge-accent{background:var(--accent-soft);color:#8A5A12}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:34px 0 46px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(247,249,251,.93),rgba(247,249,251,.99)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft)}
.crumbs a{transition:color .18s ease-out}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#AFC0CB}
.crumbs .current{color:var(--ink);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.article-title{
  font-size:clamp(28px,4vw,40px);
  line-height:1.24;
  margin-top:16px;
  max-width:900px;
}
.article-lead{
  margin-top:18px;max-width:800px;font-size:16px;line-height:1.85;color:var(--ink-soft);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:22px;font-size:14px;color:var(--ink-soft)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D4DD}

/* ============ 正文区 ============ */
.article-section{padding:48px 0 8px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:28px 20px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#22313D}
.article-body>*+*{margin-top:18px}
.article-body h2{
  font-size:clamp(21px,2.4vw,25px);
  margin-top:42px;padding-left:14px;
  border-left:4px solid var(--brand);
  color:var(--ink);
}
.article-body h3{font-size:20px;margin-top:30px;color:var(--ink)}
.article-body h4{font-size:17px;margin-top:24px;color:var(--brand-dark)}
.article-body p{color:#2B3A46}
.article-body strong{color:var(--ink);font-weight:600}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,92,122,.32);transition:color .16s ease-out,border-color .16s ease-out}
.article-body a:hover{color:var(--brand-dark);border-color:var(--brand-dark)}
.article-body img{border-radius:12px;margin:24px auto;box-shadow:0 14px 30px -18px rgba(12,39,51,.35)}
.article-body ul{margin-top:16px}
.article-body ul li{position:relative;padding-left:20px;margin-top:10px;color:#2B3A46}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{margin-top:16px;padding-left:22px;list-style:decimal}
.article-body ol li{margin-top:10px;padding-left:4px;color:#2B3A46}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;border-radius:0 12px 12px 0;
  background:var(--brand-soft);border-left:4px solid var(--brand);color:var(--brand-dark);
}
.article-body blockquote p{color:var(--brand-dark)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff}
.article-body th{background:var(--brand);color:#fff;padding:12px 14px;text-align:left;font-weight:600}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:#2B3A46}
.article-body tbody tr:nth-child(even) td{background:#FBFDFE}
.article-body code{background:#EFF4F7;padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-dark)}
.article-body pre{background:var(--dark);color:#DCE7ED;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:14px;color:var(--ink-soft);text-align:center;margin-top:10px}

.empty-state{
  text-align:center;padding:48px 20px;border:1px dashed #C9DCE6;border-radius:var(--r-card);
  background:#FBFDFE;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:26px;font-weight:700;
}
.empty-state h2{font-size:20px;color:var(--ink)}
.empty-state p{margin-top:10px;font-size:15px;color:var(--ink-soft)}
.empty-state .btn{margin-top:22px}

/* 侧栏 */
.article-aside{display:none}
.aside-inner{position:sticky;top:28px;display:flex;flex-direction:column;gap:16px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-label{
  font-size:12px;letter-spacing:1.2px;color:var(--ink-soft);text-transform:uppercase;
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px;
}
.toc-list{display:flex;flex-direction:column}
.toc-link{
  display:block;padding:8px 0 8px 12px;border-left:2px solid var(--line);
  font-size:14px;line-height:1.6;color:var(--ink-soft);
  transition:color .16s ease-out,border-color .16s ease-out,padding-left .16s ease-out;
  overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.toc-link:hover{color:var(--brand-dark);border-color:var(--brand);padding-left:16px}
.side-links{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.side-links a{font-size:14px;color:var(--ink-soft);transition:color .16s ease-out,padding-left .16s ease-out}
.side-links a:hover{color:var(--brand);padding-left:4px}
.side-fact{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-soft);padding:8px 0}
.side-fact span:last-child{color:var(--ink);text-align:right}

/* ============ 继续浏览 ============ */
.read-nav{padding:44px 0 0}
.read-nav-grid{display:grid;grid-template-columns:1fr;gap:16px}
.read-nav-item{
  display:flex;flex-direction:column;gap:6px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.read-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0E9}
.read-nav-label{font-size:12px;letter-spacing:1.2px;color:var(--ink-soft);text-transform:uppercase}
.read-nav-title{font-size:17px;font-weight:600;color:var(--ink);transition:color .16s ease-out}
.read-nav-item:hover .read-nav-title{color:var(--brand)}
.read-nav-item.is-next{text-align:right}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:1.6px;color:var(--brand);text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3vw,30px);margin-top:12px}
.section-desc{margin-top:14px;font-size:16px;line-height:1.8;color:var(--ink-soft)}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0E9}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);position:relative}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .card-badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--brand-dark)}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;transition:color .16s ease-out}
.card:hover .card-body h3{color:var(--brand)}
.card-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-soft)}
.card-more{
  margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.card:hover .card-more{gap:10px}

/* ============ CTA ============ */
.cta-band{padding:56px 0 72px}
.cta-inner{
  background:var(--dark);border-radius:16px;padding:44px 36px;
  display:flex;flex-direction:column;gap:24px;align-items:flex-start;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,92,122,.55),rgba(12,39,51,0) 70%);
}
.cta-copy h2{color:#fff;font-size:clamp(22px,3vw,28px);position:relative;z-index:1}
.cta-copy p{margin-top:12px;color:#B8CBD6;font-size:15px;max-width:620px;position:relative;z-index:1}
.cta-inner .btn{position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C8D6DE;margin-top:auto;border-top:2px solid rgba(15,92,122,.9)}
.footer-top{padding:56px 0 34px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600}
.footer-about{margin-top:14px;max-width:360px;font-size:14px;line-height:1.85;color:#93A8B4}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:#93A8B4}
.footer-col ul li a{transition:color .16s ease-out}
.footer-col ul li a:hover{color:var(--brand-soft)}
.site-footer .footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 24px 30px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7C909C;
}

/* ============ 响应式 ============ */
@media (min-width:640px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .read-nav-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-card{padding:36px 32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:48px 44px}
  .cta-inner .btn{flex:none}
}
@media (min-width:1024px){
  .app-shell{transform:none;width:var(--shell-w);box-shadow:none;padding:24px 18px}
  .shell-mask{display:none}
  .mobile-bar{display:none}
  .app-main{padding-left:var(--shell-w)}
  .article-grid{grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:start}
  .article-aside{display:block}
  .article-card{padding:44px 40px}
  .section{padding:88px 0}
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}
}
@media (min-width:1280px){
  .wrap{max-width:1200px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .article-meta{gap:12px;font-size:13px}
  .article-card{padding:24px 16px}
  .btn{height:46px;padding:0 18px}
  .cta-inner{padding:32px 22px}
  .site-footer .footer-bottom{flex-direction:column;padding:18px 16px 28px}
}

/* roulang page: category1 */
:root{
  --brand:#0F5C7A;
  --brand-deep:#0C4A63;
  --brand-soft:#E6F1F6;
  --accent:#E9A03B;
  --accent-hover:#D18F2C;
  --accent-soft:#FDF3E3;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3E9EF;
  --ink:#16232E;
  --ink-2:#5B6B7A;
  --dark:#0C2733;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(12,39,51,.04), 0 12px 28px -12px rgba(12,39,51,.16);
  --shadow-hover:0 20px 40px -16px rgba(12,39,51,.22);
  --sidebar-w:248px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0}
.mono{font-family:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;
  top:0;bottom:0;left:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  z-index:60;
}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:0 8px 18px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:700;display:grid;place-items:center;font-size:17px;
  flex:none;
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--ink)}
.shell-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.shell-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-2);
  transition:background .18s ease-out,color .18s ease-out;
}
.shell-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:transparent;
  transition:background .18s ease-out;
}
.shell-link:hover{background:#F1F6F9;color:var(--brand-deep)}
.shell-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.shell-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.shell-link.is-active::before{background:var(--brand)}
.sidebar-foot{
  margin-top:auto;
  border-top:1px solid var(--line);
  padding-top:16px;
  display:flex;flex-direction:column;gap:10px;
  font-size:13px;color:var(--ink-2);
}
.sidebar-foot .mini-label{font-size:12px;letter-spacing:.08em;color:#93A3B1}
.sidebar-foot .contact-line{font-size:13px;color:var(--ink-2)}
.btn-block{width:100%;justify-content:center}

/* ---------- 移动顶栏 & 抽屉 ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;
  padding:10px 16px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar .sidebar-logo{padding:0}
.burger{
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:4px;cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.burger:hover{background:var(--brand-soft);border-color:#CFE1EA}
.burger:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep)}
.drawer{
  position:fixed;top:0;left:0;height:100%;
  width:280px;background:#fff;z-index:90;
  padding:20px 16px;overflow-y:auto;
  transform:translateX(-100%);
  transition:transform .2s ease-out;
  box-shadow:0 20px 40px -16px rgba(12,39,51,.22);
}
.drawer.is-open{transform:translateX(0)}
.mask{
  position:fixed;inset:0;background:rgba(12,39,51,.4);
  opacity:0;visibility:hidden;z-index:80;
  transition:opacity .2s ease-out,visibility .2s ease-out;
}
.mask.is-open{opacity:1;visibility:visible}

/* ---------- 主区域 ---------- */
.main{
  margin-left:var(--sidebar-w);
  padding:32px 32px 0;
}
.wrap{max-width:1180px;margin:0 auto;width:100%}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:18px}
.crumb a{color:var(--ink-2);transition:color .18s ease-out}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#B6C3CE}
.crumb .current{color:var(--brand-deep);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  border:1px solid var(--line);
  border-radius:20px;
  background:#fff;
  box-shadow:var(--shadow);
  padding:48px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.14;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 55%,rgba(255,255,255,.6) 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.hero-title{
  font-size:40px;line-height:1.22;font-weight:600;
  letter-spacing:-.01em;color:var(--ink);margin:18px 0 16px;
}
.hero-title em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
}
.chip b{color:var(--brand-deep);font-weight:600}
.hero-visual{position:relative}
.hero-visual img{border-radius:16px;width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}
.hero-badge-card{
  position:absolute;left:16px;right:16px;bottom:-24px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-hover);
  padding:14px 18px;
  font-size:13px;color:var(--ink-2);
  display:flex;flex-direction:column;gap:6px;
}
.hero-badge-card strong{color:var(--brand-deep);font-size:14px}
.hero-visual-space{height:34px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px -10px rgba(233,160,59,.9)}
.btn.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 16px 26px -14px rgba(233,160,59,.95)}
.btn.btn-primary:active{transform:translateY(0)}
.btn.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#CFE1EA}
.btn.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn.btn-dark{background:var(--dark);color:#fff}
.btn.btn-dark:hover{background:#0A1F29;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0 0}
.section-head{max-width:720px;margin-bottom:32px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;margin-bottom:10px;
}
.sec-title{font-size:28px;line-height:1.35;font-weight:600;color:var(--ink)}
.sec-desc{margin-top:12px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D6E3EB}

/* ---------- 图文交替 ---------- */
.zig{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;
  padding:36px 0;
}
.zig + .zig{border-top:1px dashed var(--line)}
.zig-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.zig-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.zig-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(15,92,122,.06),rgba(12,39,51,.24));
}
.zig.reverse .zig-media{order:2}
.zig-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink)}
.zig-body p{margin-top:12px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{
  position:relative;padding-left:30px;
  font-size:15px;line-height:1.75;color:var(--ink);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:7px;
  width:16px;height:16px;border-radius:5px;
  background:var(--brand-soft);
  box-shadow:inset 0 0 0 1px #CFE1EA;
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:12px;
  width:6px;height:3px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.check-list li span{color:var(--ink-2)}
.note-strip{
  margin-top:22px;padding:14px 18px;border-radius:12px;
  background:var(--accent-soft);border:1px solid #F2DFC0;
  font-size:14px;line-height:1.8;color:#8A5B14;
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 22px 24px;
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
  overflow:hidden;
}
.step-card::before{content:"";position:absolute;left:22px;right:22px;top:0;height:3px;background:var(--brand);border-radius:0 0 3px 3px}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.step-num{
  font-family:"Inter",ui-monospace,monospace;
  font-size:34px;font-weight:700;line-height:1;
  color:var(--brand-soft);letter-spacing:-.02em;
}
.step-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-top:12px}
.step-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ---------- 参数表 ---------- */
.table-wrap{
  overflow-x:auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
table.spec{width:100%;border-collapse:collapse;min-width:760px}
.spec thead th{
  background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;text-align:left;
  padding:15px 20px;white-space:nowrap;
}
.spec tbody td{
  padding:15px 20px;border-top:1px solid var(--line);
  font-size:15px;color:var(--ink);vertical-align:top;
}
.spec tbody tr:nth-child(even){background:#FAFCFD}
.spec tbody tr{transition:background .18s ease-out}
.spec tbody tr:hover{background:var(--brand-soft)}
.spec tbody td:first-child{font-weight:600;color:var(--brand-deep);white-space:nowrap}
.table-hint{margin-top:14px;font-size:13px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-item:hover{box-shadow:var(--shadow-hover);border-color:#D6E3EB}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;
  width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:16px;font-weight:600;line-height:1;
  transition:background .18s ease-out,color .18s ease-out;
}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:64px;
  background:var(--dark);color:#fff;
  border-radius:16px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 48px -24px rgba(12,39,51,.55);
}
.cta-band h2{font-size:24px;line-height:1.45;font-weight:600}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:#B9CBD4;max-width:44em}
.cta-actions{display:flex;gap:12px;flex:none}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:var(--dark);color:#C7D6DE}
.footer-top{border-top:3px solid var(--brand);padding:48px 0 36px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:#fff}
.footer-brand .brand-mark{width:32px;height:32px;font-size:16px;background:var(--brand)}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:#9FB4BF;max-width:34em}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:#9FB4BF;transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand-soft)}
.footer-col a:focus-visible{outline:2px solid var(--brand-soft);outline-offset:2px;border-radius:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  font-size:13px;color:#8298A4;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero{padding:40px}
  .hero-title{font-size:34px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding:18px 16px 0}
  .hero{padding:32px 24px}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-visual-space{height:0}
  .hero-title{font-size:30px}
  .zig{grid-template-columns:minmax(0,1fr);gap:24px;padding:28px 0}
  .zig.reverse .zig-media{order:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:639px){
  .section{padding:48px 0 0}
  .hero{padding:26px 18px;border-radius:16px}
  .hero-title{font-size:25px;line-height:1.32}
  .hero-visual img{aspect-ratio:16/10}
  .hero-badge-card{position:static;margin-top:14px;box-shadow:var(--shadow)}
  .sec-title{font-size:23px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .cta-band{margin-top:48px;padding:26px 18px;border-radius:14px}
  .cta-band h2{font-size:20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .faq-item summary{padding:16px 16px;font-size:15px}
  .faq-body{padding:0 16px 18px}
  .spec thead th,.spec tbody td{padding:12px 14px}
}

/* roulang page: category2 */
:root{
    --brand:#0F5C7A;
    --brand-dark:#0C4A63;
    --brand-soft:#E6F1F6;
    --accent:#E9A03B;
    --accent-dark:#D18F2C;
    --accent-soft:#FDF3E3;
    --bg:#F7F9FB;
    --card:#FFFFFF;
    --line:#E3E9EF;
    --ink:#16232E;
    --muted:#5B6B7A;
    --deep:#0C2733;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(12,39,51,.04), 0 12px 28px -12px rgba(12,39,51,.16);
    --shadow-card-hover:0 20px 40px -16px rgba(12,39,51,.22);
    --sidebar-w:248px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;}
  button,input,textarea,select{font:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

  /* ============ 左侧 App Shell ============ */
  .side-nav{
    position:fixed;
    top:0;left:0;bottom:0;
    width:var(--sidebar-w);
    background:var(--card);
    border-right:1px solid var(--line);
    padding:26px 20px 24px;
    display:flex;
    flex-direction:column;
    gap:22px;
    z-index:60;
    transform:translateX(-100%);
    transition:transform .22s ease-out;
    overflow-y:auto;
  }
  .side-nav.is-open{transform:translateX(0);}
  .side-logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:19px;
    font-weight:600;
    color:var(--ink);
    letter-spacing:.2px;
  }
  .brand-mark{
    width:36px;height:36px;
    flex:0 0 36px;
    border-radius:11px;
    background:linear-gradient(135deg,var(--brand),var(--brand-dark));
    color:#fff;
    display:grid;place-items:center;
    font-size:17px;font-weight:700;
    text-transform:uppercase;
  }
  .side-tagline{
    font-size:13px;
    line-height:1.7;
    color:var(--muted);
    padding:0 2px 16px;
    border-bottom:1px solid var(--line);
  }
  .shell-nav{display:flex;flex-direction:column;gap:4px;}
  .shell-link{
    display:flex;
    align-items:center;
    min-height:44px;
    padding:0 12px 0 14px;
    border-radius:10px;
    font-size:15px;
    color:#33424f;
    position:relative;
  }
  .shell-link::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%);
    width:3px;height:0;
    border-radius:3px;
    background:var(--brand);
    transition:height .18s ease-out;
  }
  .shell-link:hover{background:#F2F6F9;color:var(--brand-dark);}
  .shell-link.is-active{
    background:var(--brand-soft);
    color:var(--brand-dark);
    font-weight:600;
  }
  .shell-link.is-active::before{height:22px;}
  .side-foot{
    margin-top:auto;
    padding-top:18px;
    border-top:1px solid var(--line);
    display:flex;
    flex-direction:column;
    gap:8px;
  }
  .side-contact{font-size:13px;color:var(--muted);word-break:break-all;}
  .side-foot .btn{margin-top:8px;}

  .topbar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:64px;
    padding:0 16px;
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);
    position:sticky;
    top:0;
    z-index:50;
    backdrop-filter:saturate(160%) blur(8px);
  }
  .menu-btn{
    width:44px;height:44px;
    border-radius:10px;
    border:1px solid var(--line);
    color:var(--brand-dark);
    display:grid;place-items:center;
    font-size:18px;
  }
  .menu-btn:hover{background:var(--brand-soft);}
  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(12,39,51,.4);
    opacity:0;visibility:hidden;
    transition:opacity .2s ease-out,visibility .2s ease-out;
    z-index:55;
  }
  .drawer-mask.is-show{opacity:1;visibility:visible;}

  .main-wrap{min-height:100vh;display:flex;flex-direction:column;}
  .page-main{flex:1 1 auto;}

  /* ============ 通用按钮 / 徽章 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .btn-accent{
    background:var(--accent);
    color:#fff;
    box-shadow:0 10px 22px -12px rgba(233,160,59,.85);
  }
  .btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(233,160,59,.9);}
  .btn-accent:active{transform:translateY(0);}
  .btn-ghost{
    background:#fff;
    color:var(--brand-dark);
    border-color:#BFD8E3;
  }
  .btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);}
  .btn-block{width:100%;}
  .btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 12px;
    border-radius:999px;
    font-size:12px;
    font-weight:600;
    background:var(--brand-soft);
    color:var(--brand-dark);
    letter-spacing:.2px;
  }
  .badge-accent{background:var(--accent-soft);color:#9A6516;}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;}
  .chip{
    padding:7px 15px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--line);
    font-size:13.5px;
    color:#33424f;
  }
  .chip:hover{border-color:#BFD8E3;color:var(--brand-dark);}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:2px;
    color:var(--brand);
    text-transform:uppercase;
  }
  .section{padding:76px 0;}
  .section-sm{padding:52px 0;}
  .section-head{max-width:760px;margin-bottom:36px;}
  .section-head h2{
    font-size:28px;
    line-height:1.4;
    font-weight:600;
    margin:12px 0 12px;
    letter-spacing:.2px;
  }
  .section-head p{color:var(--muted);font-size:16px;}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ============ 面包屑 + 页头 ============ */
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13.5px;color:var(--muted);
    padding:22px 0 0;
  }
  .crumb a:hover{color:var(--brand);}
  .crumb .sep{opacity:.6;}
  .crumb .current{color:var(--brand-dark);font-weight:600;}

  .page-hero{
    padding:26px 0 64px;
    background:
      linear-gradient(180deg,rgba(255,255,255,.96),rgba(247,249,251,.96)),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:48px;
    align-items:center;
    margin-top:26px;
  }
  .page-title{
    font-size:40px;
    line-height:1.28;
    font-weight:600;
    letter-spacing:.2px;
    margin:14px 0 18px;
  }
  .page-title em{
    font-style:normal;
    color:var(--brand);
    box-shadow:inset 0 -12px 0 rgba(230,241,246,.9);
  }
  .lede{
    font-size:16.5px;
    color:#31414e;
    max-width:620px;
  }
  .lede + .lede{margin-top:12px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .hero-facts{
    display:flex;flex-wrap:wrap;gap:28px;
    margin-top:32px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .hero-fact strong{
    display:block;
    font-size:22px;font-weight:700;
    color:var(--brand-dark);
    font-variant-numeric:tabular-nums;
  }
  .hero-fact span{font-size:13.5px;color:var(--muted);}
  .hero-visual{
    position:relative;
    border-radius:18px;
    overflow:hidden;
    box-shadow:var(--shadow-card);
    border:1px solid var(--line);
    background:#fff;
  }
  .hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .hero-visual::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(140deg,rgba(15,92,122,.16),rgba(255,255,255,0) 55%);
    pointer-events:none;
  }
  .hero-visual figcaption{
    position:absolute;
    left:18px;bottom:16px;right:18px;
    background:rgba(255,255,255,.92);
    border-radius:12px;
    padding:12px 16px;
    font-size:13.5px;
    color:#31414e;
    backdrop-filter:blur(6px);
  }

  /* ============ 时间线 ============ */
  .timeline{position:relative;margin-top:8px;}
  .tl-item{position:relative;padding:0 0 30px 76px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";
    position:absolute;
    left:23px;top:52px;bottom:6px;
    width:2px;
    background:linear-gradient(180deg,#CFE2EB,var(--brand-soft));
  }
  .tl-item:last-child::before{display:none;}
  .tl-dot{
    position:absolute;
    left:0;top:0;
    width:48px;height:48px;
    border-radius:999px;
    background:#fff;
    border:2px solid var(--brand);
    color:var(--brand-dark);
    display:grid;place-items:center;
    font-size:15px;font-weight:700;
    font-variant-numeric:tabular-nums;
    z-index:1;
  }
  .tl-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px 26px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:#CFE2EB;}
  .tl-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
  .tl-card p{color:#3c4c58;font-size:15.5px;}
  .tl-meta{
    display:flex;flex-wrap:wrap;gap:10px;
    margin-top:14px;
  }
  .tl-meta span{
    font-size:12.5px;
    color:var(--brand-dark);
    background:var(--brand-soft);
    border-radius:999px;
    padding:4px 12px;
  }

  /* ============ 双列信息卡 ============ */
  .duo-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .info-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:28px;
    box-shadow:var(--shadow-card);
    display:flex;
    flex-direction:column;
    gap:14px;
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:#CFE2EB;}
  .info-icon{
    width:44px;height:44px;
    border-radius:12px;
    background:var(--brand-soft);
    color:var(--brand-dark);
    display:grid;place-items:center;
    font-size:18px;
  }
  .info-card h3{font-size:19px;font-weight:600;}
  .info-card p{color:var(--muted);font-size:15.5px;}
  .info-list{display:flex;flex-direction:column;gap:9px;margin-top:2px;}
  .info-list li{
    position:relative;
    padding-left:22px;
    font-size:15px;
    color:#33424f;
  }
  .info-list li::before{
    content:"";
    position:absolute;
    left:4px;top:11px;
    width:7px;height:7px;
    border-radius:2px;
    background:var(--accent);
  }

  /* ============ 角色与权限范围 ============ */
  .scope-grid{
    display:grid;
    grid-template-columns:.92fr 1.08fr;
    gap:48px;
    align-items:center;
  }
  .scope-visual{
    border-radius:16px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    background:#fff;
  }
  .scope-visual img{width:100%;aspect-ratio:5/4;object-fit:cover;}
  .role-list{display:flex;flex-direction:column;gap:14px;}
  .role-item{
    background:#fff;
    border:1px solid var(--line);
    border-left:3px solid var(--brand);
    border-radius:12px;
    padding:18px 20px;
    transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
  }
  .role-item:hover{transform:translateX(3px);background:#FBFDFE;box-shadow:var(--shadow-card);}
  .role-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
  .role-top h3{font-size:16.5px;font-weight:600;}
  .role-item p{font-size:14.8px;color:var(--muted);}

  /* ============ 权限小表 ============ */
  .matrix{
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    font-size:14.8px;
  }
  .matrix th,.matrix td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);}
  .matrix thead th{
    background:var(--brand-soft);
    color:var(--brand-dark);
    font-weight:600;
    font-size:14.5px;
    white-space:nowrap;
  }
  .matrix tbody tr:nth-child(even){background:#FAFCFD;}
  .matrix tbody tr:hover{background:#F2F8FB;}
  .matrix tbody tr:last-child td{border-bottom:0;}
  .matrix th:first-child{position:sticky;left:0;background:var(--brand-soft);}
  .matrix tbody td:first-child{font-weight:600;color:var(--brand-dark);background:#fff;}
  .matrix tbody tr:nth-child(even) td:first-child{background:#FAFCFD;}
  .table-scroll{overflow-x:auto;border-radius:var(--radius-card);}

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .faq-item:hover{border-color:#CFE2EB;}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 26px;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary .sign{
    flex:0 0 30px;
    width:30px;height:30px;
    border-radius:999px;
    background:var(--brand-soft);
    color:var(--brand-dark);
    display:grid;place-items:center;
    font-size:15px;
    font-weight:700;
    transition:background-color .18s ease-out,color .18s ease-out;
  }
  .faq-item[open] summary .sign{background:var(--accent);color:#fff;}
  .faq-answer{
    padding:0 26px 22px;
    color:var(--muted);
    font-size:15px;
    line-height:1.85;
    border-top:1px solid var(--line);
    padding-top:16px;
    margin:0 26px 22px;
    padding-left:0;padding-right:0;
  }

  /* ============ CTA + 表单 ============ */
  .cta-block{
    background:linear-gradient(160deg,#0C2733,#0F4258);
    border-radius:16px;
    padding:52px 48px;
    color:#fff;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:44px;
    align-items:start;
  }
  .cta-copy h2{font-size:28px;font-weight:600;line-height:1.4;margin-bottom:16px;}
  .cta-copy p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:440px;}
  .cta-points{display:flex;flex-direction:column;gap:12px;margin-top:26px;}
  .cta-points li{
    position:relative;
    padding-left:26px;
    font-size:15px;
    color:rgba(255,255,255,.9);
  }
  .cta-points li::before{
    content:"\f00c";
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    position:absolute;
    left:0;top:0;
    color:var(--accent);
    font-size:13px;
  }
  .apply-form{
    background:#fff;
    border-radius:14px;
    padding:28px;
    box-shadow:0 24px 48px -24px rgba(0,0,0,.4);
    display:flex;
    flex-direction:column;
    gap:16px;
  }
  .apply-form h3{font-size:18px;font-weight:600;color:var(--ink);}
  .field{display:flex;flex-direction:column;gap:7px;}
  .field label{font-size:13.5px;font-weight:600;color:#33424f;}
  .field label .req{color:#C2412F;}
  .field input,.field textarea,.field select{
    width:100%;
    border:1px solid var(--line);
    border-radius:10px;
    padding:11px 14px;
    font-size:14.8px;
    background:#FCFDFE;
    transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
  }
  .field input:focus,.field textarea:focus,.field select:focus{
    outline:none;
    border-color:var(--brand);
    background:#fff;
    box-shadow:0 0 0 3px rgba(15,92,122,.18);
  }
  .field textarea{min-height:104px;resize:vertical;}
  .field .hint{font-size:12.5px;color:var(--muted);}
  .field.has-error input,.field.has-error textarea{border-color:#C2412F;}
  .field .err{display:none;font-size:12.5px;color:#C2412F;}
  .field.has-error .err{display:block;}
  .check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);}
  .check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--deep);
    color:rgba(255,255,255,.72);
    border-top:3px solid var(--brand);
  }
  .footer-top{padding:56px 0 40px;}
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:36px;
  }
  .footer-brand{
    display:flex;align-items:center;gap:10px;
    color:#fff;font-size:18px;font-weight:600;
    margin-bottom:16px;
  }
  .footer-brand .brand-mark{background:linear-gradient(135deg,#1B7799,#0F5C7A);}
  .footer-about{font-size:14px;line-height:1.85;max-width:340px;color:rgba(255,255,255,.66);}
  .footer-col h3{
    font-size:14.5px;font-weight:600;color:#fff;
    margin-bottom:16px;letter-spacing:.4px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:11px;}
  .footer-col li{font-size:14px;}
  .footer-col a:hover{color:var(--brand-soft);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
    padding:20px 24px 28px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:rgba(255,255,255,.55);
  }

  /* ============ 响应式 ============ */
  @media (min-width:1024px){
    .side-nav{transform:translateX(0);}
    .topbar{display:none;}
    .main-wrap{margin-left:var(--sidebar-w);}
    .drawer-mask{display:none;}
  }
  @media (max-width:1100px){
    .hero-grid{gap:34px;}
    .scope-grid{gap:32px;}
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .scope-grid{grid-template-columns:1fr;gap:28px;}
    .cta-block{grid-template-columns:1fr;padding:36px 26px;gap:30px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .footer-about{max-width:none;}
  }
  @media (max-width:760px){
    .section{padding:56px 0;}
    .section-sm{padding:40px 0;}
    .page-hero{padding:20px 0 48px;}
    .page-title{font-size:30px;}
    .section-head h2{font-size:24px;}
    .duo-grid{grid-template-columns:1fr;}
    .tl-item{padding-left:62px;}
    .tl-dot{width:42px;height:42px;font-size:14px;}
    .tl-item::before{left:20px;top:46px;}
    .tl-card{padding:18px 20px;}
    .cta-copy h2{font-size:23px;}
  }
  @media (max-width:520px){
    .wrap{padding:0 16px;}
    .page-title{font-size:26px;}
    .hero-facts{gap:20px;}
    .hero-fact strong{font-size:19px;}
    .hero-actions .btn{width:100%;}
    .info-card{padding:22px;}
    .faq-item summary{padding:17px 18px;font-size:15px;}
    .faq-answer{margin:0 18px 18px;}
    .apply-form{padding:20px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .matrix th,.matrix td{padding:12px 14px;font-size:14px;}
  }

/* roulang page: category3 */
:root{
  --brand:#0F5C7A;
  --brand-dark:#0C4A63;
  --brand-soft:#E6F1F6;
  --accent:#E9A03B;
  --accent-dark:#D18F2C;
  --accent-soft:#FDF3E3;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3E9EF;
  --text:#16232E;
  --muted:#5B6B7A;
  --deep:#0C2733;
  --danger:#C2412F;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(12,39,51,.04), 0 12px 28px -12px rgba(12,39,51,.16);
  --shadow-hover:0 20px 40px -16px rgba(12,39,51,.22);
  --side:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Inter",-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 左侧 App Shell ---------- */
.shell-side{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side);
  background:#fff;
  border-right:1px solid var(--line);
  padding:22px 18px 24px;
  display:none;
  flex-direction:column;
  z-index:60;
}
@media (min-width:1024px){ .shell-side{display:flex} }
.shell-brand{display:flex;align-items:center;gap:10px;padding:0 6px 18px;border-bottom:1px solid var(--line)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:linear-gradient(135deg,#0F5C7A,#16809f);
  color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:18px;letter-spacing:.02em;
}
.shell-brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.shell-brand-sub{display:block;font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.04em}
.shell-nav{display:flex;flex-direction:column;gap:6px;margin-top:18px}
.shell-link{
  display:flex;align-items:center;min-height:44px;padding:0 12px;
  border-radius:var(--radius-sm);
  border-left:3px solid transparent;
  color:var(--muted);font-size:15px;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.shell-link:hover{background:#F1F6F9;color:var(--brand-dark)}
.shell-link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;border-left-color:var(--brand)}
.shell-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.shell-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}
.shell-foot dl{margin:0 0 16px;font-size:13px;color:var(--muted);line-height:1.9}
.shell-foot dt{font-size:12px;letter-spacing:.08em;color:#8394a2;margin-top:8px}
.shell-foot dd{margin:0;color:var(--brand-dark)}
.shell-foot .btn{width:100%}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  position:sticky;top:0;z-index:55;
  height:64px;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:0 16px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
@media (min-width:1024px){ .topbar{display:none} }
.topbar-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px}
.topbar-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:16px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.burger:hover{background:var(--brand-soft);border-color:#BFD8E3}
.burger:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.burger span{display:block;width:18px;height:2px;background:var(--brand-dark);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-dark);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;
  background:#fff;z-index:80;padding:20px 18px;
  transform:translateX(-100%);
  transition:transform .22s ease-out;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .shell-nav{margin-top:16px}
.scrim{
  position:fixed;inset:0;background:rgba(12,39,51,.4);
  opacity:0;pointer-events:none;transition:opacity .2s ease-out;z-index:70;
}
.scrim.is-open{opacity:1;pointer-events:auto}
@media (min-width:1024px){ .scrim{display:none} }

/* ---------- 主内容区 ---------- */
.shell-main{margin-left:0;min-height:100vh;display:flex;flex-direction:column}
@media (min-width:1024px){ .shell-main{margin-left:var(--side)} }
.main-flex{flex:1 1 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(233,160,59,.85)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#BFD8E3}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-ghost:active{background:#D8EAF1}
.btn-ondark{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ondark:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.55;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,#FFFFFF 28%,rgba(255,255,255,.88) 56%,rgba(255,255,255,.45) 100%);
}
.hero-inner{position:relative;padding:44px 0 52px}
@media (min-width:1024px){ .hero-inner{padding:76px 0 72px} }
.hero-grid{display:grid;gap:36px}
@media (min-width:1024px){ .hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:48px} }
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px}
.crumb a:hover{color:var(--brand);text-decoration:underline}
.crumb .sep{color:#B6C3CD}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--accent-soft);color:#8A5A12;
  font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero h1{
  font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.01em;
  color:var(--text);margin:0 0 16px;
}
@media (min-width:768px){ .hero h1{font-size:36px} }
@media (min-width:1280px){ .hero h1{font-size:40px} }
.hero-sub{font-size:16px;color:var(--muted);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.hero-shot{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:#fff;
}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-chip{
  position:absolute;right:14px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow);padding:12px 16px;font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:10px;
}
.hero-chip strong{color:var(--brand-dark);font-size:14px}
@media (max-width:639px){ .hero-chip{position:static;margin-top:14px} }

/* ---------- 文档网格与锚点导航 ---------- */
.doc-grid{display:grid;gap:26px;padding-top:40px;padding-bottom:64px}
@media (min-width:1024px){ .doc-grid{grid-template-columns:220px minmax(0,1fr);gap:44px;padding-top:64px;padding-bottom:88px} }
.toc{
  display:flex;gap:8px;overflow-x:auto;
  position:sticky;top:64px;z-index:40;
  background:rgba(247,249,251,.96);
  padding:10px 0;margin:0 -4px;
  border-bottom:1px solid var(--line);
  -webkit-overflow-scrolling:touch;
}
.toc::-webkit-scrollbar{height:0}
@media (min-width:1024px){
  .toc{
    display:block;position:sticky;top:32px;
    background:transparent;border:0;padding:0;margin:0;
    overflow:visible;align-self:start;
  }
}
.toc-title{display:none}
@media (min-width:1024px){
  .toc-title{display:block;font-size:12px;letter-spacing:.12em;color:#8394a2;margin:0 0 12px 12px}
}
.toc a{
  flex:0 0 auto;white-space:nowrap;
  padding:9px 14px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:#fff;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.toc a:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#BFD8E3}
.toc a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.toc a.is-active{background:var(--brand-soft);color:var(--brand-dark);border-color:#BFD8E3;font-weight:600}
@media (min-width:1024px){
  .toc a{
    display:block;white-space:normal;border:0;background:transparent;
    border-left:2px solid transparent;border-radius:0 9px 9px 0;
    padding:10px 12px;
  }
  .toc a.is-active{border-left-color:var(--brand);border-radius:0 9px 9px 0;background:var(--brand-soft)}
}
.doc-main{min-width:0}
.block{padding-bottom:56px}
@media (min-width:1024px){ .block{padding-bottom:72px} }
.block:last-child{padding-bottom:0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:22px;font-weight:600;letter-spacing:-.01em;margin-bottom:10px}
@media (min-width:768px){ .section-head h2{font-size:27px} }
.section-head p{color:var(--muted);font-size:15px;max-width:760px}
.rule{height:1px;background:var(--line);margin:0 0 32px}

/* ---------- 概览卡 ---------- */
.ov-grid{display:grid;gap:20px}
@media (min-width:640px){ .ov-grid{grid-template-columns:repeat(2,1fr)} }
.ov-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.ov-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0E8}
.ov-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-weight:700;font-size:15px;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.ov-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.ov-card p{font-size:14.5px;color:var(--muted)}

/* ---------- 对比表 ---------- */
.table-note{font-size:13.5px;color:var(--muted);margin-top:14px}
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
.cmp-table{width:100%;min-width:900px;border-collapse:separate;border-spacing:0;font-size:14.5px}
.cmp-table caption{
  caption-side:top;text-align:left;padding:18px 20px 4px;
  font-size:15px;font-weight:600;color:var(--brand-dark);
}
.cmp-table thead th{
  background:var(--brand);color:#fff;font-weight:600;font-size:14px;
  text-align:left;padding:14px 18px;white-space:nowrap;
}
.cmp-table tbody td{
  padding:16px 18px;border-top:1px solid var(--line);
  color:var(--text);vertical-align:top;background:#fff;
}
.cmp-table tbody tr:nth-child(even) td{background:#F4F8FB}
.cmp-table tbody tr:hover td{background:var(--brand-soft)}
.cmp-table td:first-child,.cmp-table th:first-child{
  position:sticky;left:0;z-index:2;
  box-shadow:2px 0 0 var(--line);
  font-weight:600;color:var(--brand-dark);
  min-width:132px;
}
.cmp-table thead th:first-child{background:var(--brand);color:#fff;z-index:3}
.cmp-table tbody tr:nth-child(even) td:first-child{background:#EFF5F8}
.cmp-table tbody tr:hover td:first-child{background:#DCEBF2}
.cmp-table .cell-sub{display:block;font-weight:400;color:var(--muted);font-size:13.5px;margin-top:4px}

/* ---------- 标签墙 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  border:1px solid #CFE3EC;font-size:14px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.tag:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}
.tag:hover::before{background:#fff}

/* ---------- 图文流程 ---------- */
.split{display:grid;gap:28px}
@media (min-width:1024px){ .split{grid-template-columns:5fr 7fr;align-items:center;gap:44px} }
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.steps{display:flex;flex-direction:column;gap:2px}
.step{
  position:relative;padding:18px 20px 18px 74px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.step + .step{margin-top:14px}
.step:hover{transform:translateX(3px);box-shadow:var(--shadow)}
.step-num{
  position:absolute;left:20px;top:18px;
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--accent-soft);color:#8A5A12;
  font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- 保障条 ---------- */
.assure{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px;
  display:grid;gap:22px;
}
@media (min-width:768px){ .assure{grid-template-columns:repeat(3,1fr);gap:28px} }
.assure div{position:relative;padding-left:20px}
.assure div::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand-soft)}
.assure h3{font-size:16px;font-weight:600;margin-bottom:6px}
.assure p{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:#CFE0E8}
.faq-item[open]{border-color:#BFD8E3;box-shadow:var(--shadow-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.6;
  transition:background .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F6FAFC}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-icon{
  position:relative;flex:0 0 24px;width:24px;height:24px;margin-top:2px;
  border-radius:50%;background:var(--brand-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-dark);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:transform .18s ease-out,opacity .18s ease-out}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.85;max-width:820px}

/* ---------- CTA 与表单 ---------- */
.cta-block{
  background:var(--deep);border-radius:16px;padding:32px 24px;
  display:grid;gap:30px;color:#fff;
}
@media (min-width:768px){ .cta-block{padding:46px 42px} }
@media (min-width:1024px){ .cta-block{grid-template-columns:5fr 7fr;gap:44px;align-items:start} }
.cta-block h2{font-size:22px;font-weight:600;margin-bottom:12px;color:#fff}
@media (min-width:768px){ .cta-block h2{font-size:27px} }
.cta-block p{color:#B9CBD5;font-size:15px}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:#D5E3EA}
.cta-points li::before{
  content:"";flex:0 0 18px;width:18px;height:18px;margin-top:4px;border-radius:50%;
  background:rgba(233,160,59,.18);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23E9A03B'%3E%3Cpath d='M8.1 13.9 4.6 10.4l1.1-1.1 2.4 2.4 5.2-5.2 1.1 1.1z'/%3E%3C/svg%3E");
  background-size:18px 18px;
}
.form-card{
  background:#fff;border-radius:var(--radius);padding:26px;color:var(--text);
  box-shadow:0 24px 48px -22px rgba(0,0,0,.45);
}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.form-card .form-hint{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field .req{color:var(--danger);margin-left:2px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:15px;line-height:1.6;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.field textarea{min-height:104px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AA9B4}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,92,122,.2);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(194,65,47,.14)}
.field-error{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.field.has-error .field-error{display:block}
.field-check{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px;font-size:13.5px;color:var(--muted)}
.field-check input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 18px}
.form-foot{font-size:13px;color:var(--muted);margin-top:14px}
.form-success{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--brand-soft);color:var(--brand-dark);font-size:14px;border:1px solid #BFD8E3;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#C7D7DF;margin-top:auto;border-top:3px solid var(--brand)}
.footer-top{padding:52px 0 36px}
.footer-grid{display:grid;gap:34px}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr} }
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#16809f,#0F5C7A)}
.footer-about{font-size:14px;color:#9FB4BF;max-width:360px;line-height:1.8}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-col a,.footer-col span{color:#A9BEC9;transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand-soft)}
.footer-col a:focus-visible{outline:2px solid var(--brand-soft);outline-offset:2px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 24px 26px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:#8FA5B0;max-width:1200px;margin:0 auto;
}

/* ---------- 无障碍/动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}
html{scroll-behavior:smooth}
:target{scroll-margin-top:88px}

/* roulang page: category4 */
:root{
  --brand:#0F5C7A;
  --brand-deep:#0C4A63;
  --brand-soft:#E6F1F6;
  --accent:#E9A03B;
  --accent-hover:#D18F2C;
  --accent-soft:#FDF3E3;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E3E9EF;
  --ink:#16232E;
  --muted:#5B6B7A;
  --dark:#0C2733;
  --danger:#C2412F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,39,51,.04),0 12px 28px -12px rgba(12,39,51,.16);
  --sh-2:0 20px 40px -16px rgba(12,39,51,.22);
  --sidebar-w:248px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- App shell ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--card);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 18px 20px;
  gap:16px;
  z-index:70;
  transition:transform .22s ease-out;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;font-weight:700;font-size:17px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:600;letter-spacing:.01em}
.brand-sub{font-size:12px;color:var(--muted)}
.shell-divider{height:1px;background:var(--line);margin:2px 0}
.shell-nav{display:flex;flex-direction:column;gap:4px}
.shell-link{
  display:flex;align-items:center;
  min-height:44px;
  padding:10px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink);
  border-left:3px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.shell-link:hover{background:var(--brand-soft);color:var(--brand-deep)}
.shell-link.is-active{
  background:var(--brand-soft);
  border-left-color:var(--brand);
  color:var(--brand-deep);
  font-weight:600;
}
.shell-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.shell-contact{font-size:13px;line-height:1.9;color:var(--muted);padding-top:14px;border-top:1px solid var(--line)}
.shell-contact strong{display:block;color:var(--ink);font-size:13px;font-weight:600;margin-bottom:2px}
.sidebar .btn-primary{width:100%;justify-content:center}

.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.mobile-topbar{display:none}
.backdrop{display:none}

@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);box-shadow:var(--sh-2);width:280px}
  .sidebar.is-open{transform:none}
  .main{margin-left:0}
  .mobile-topbar{
    display:flex;align-items:center;justify-content:space-between;
    height:64px;padding:0 16px;
    background:rgba(255,255,255,.96);
    backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:50;
  }
  .menu-btn{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:0 10px;
    border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;
  }
  .menu-btn span{display:block;height:2px;background:var(--ink);border-radius:2px}
  .menu-btn:hover{background:var(--brand-soft)}
  .backdrop{
    position:fixed;inset:0;background:rgba(12,39,51,.40);z-index:65;
  }
  .backdrop.is-open{display:block}
}

/* ---------- Layout helpers ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:56px 0}
.section-tight{padding:40px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;letter-spacing:.01em}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px rgba(233,160,59,.75)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 16px 28px -12px rgba(233,160,59,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#B9C6D1}
.breadcrumb a:hover{color:var(--brand)}

/* ---------- Hero ---------- */
.hero{padding:28px 0 8px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.hero-copy h1{font-size:40px;line-height:1.24;font-weight:600;letter-spacing:.01em}
.hero-lead{margin-top:18px;font-size:16px;line-height:1.85;color:var(--muted);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted)}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);background:#fff}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,249,251,0) 40%,rgba(12,39,51,.42) 100%);
}
.hero-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);
  color:var(--brand-deep);
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  padding:8px 16px;
}

/* ---------- Stats ---------- */
.stats{padding:36px 0 8px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.stat-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D5E2EA}
.stat-value{font-family:var(--font-num);font-size:30px;font-weight:700;line-height:1.2;color:var(--brand);letter-spacing:-.01em}
.stat-value small{font-size:15px;font-weight:600;margin-left:4px;color:var(--brand-deep)}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink);font-weight:600}
.stat-desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- Capability cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D5E2EA}
.feature-card{padding:26px 24px}
.feature-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;
  margin-bottom:18px;
}
.feature-card h3{font-size:18px;font-weight:600;line-height:1.5}
.feature-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}
.feature-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.feature-list li{position:relative;padding-left:18px;font-size:14px;color:var(--muted)}
.feature-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);opacity:.6}

/* ---------- Flow ---------- */
.flow-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.flow-item{
  position:relative;
  padding:30px 24px 30px 26px;
  border-left:1px solid var(--line);
  transition:background .2s ease-out;
}
.flow-item:first-child{border-left:0}
.flow-item:hover{background:var(--bg)}
.flow-item::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out}
.flow-item:hover::before{transform:scaleX(1)}
.flow-num{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em}
.flow-item h3{margin-top:12px;font-size:17px;font-weight:600}
.flow-item p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- Assurance (image + list) ---------- */
.assure-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.assure-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff}
.assure-media img{width:100%;aspect-ratio:1/1;object-fit:cover}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.check-item{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-1);transition:box-shadow .2s ease-out,transform .2s ease-out}
.check-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.check-mark{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;margin-top:2px;
}
.check-item h3{font-size:16px;font-weight:600}
.check-item p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:#D5E2EA}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;font-weight:600;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.faq-item summary:hover .faq-icon{background:var(--brand-soft);border-color:var(--brand)}
.faq-item[open] .faq-icon{background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-item[open] .faq-icon::after{content:"−"}
.faq-icon::after{content:"+"}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-body p+p{margin-top:10px}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--dark);
  border-radius:16px;
  padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.4}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);margin-top:64px}
.footer-top{padding:56px 0 40px;border-top:3px solid var(--brand)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-col a,.footer-col span{color:rgba(255,255,255,.72);transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand-soft)}
.footer-bottom{
  padding:18px 24px 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-copy h1{font-size:32px;line-height:1.3}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-item{border-left:0;border-top:1px solid var(--line)}
  .flow-item:nth-child(odd){border-right:1px solid var(--line)}
  .assure-grid{grid-template-columns:1fr;gap:28px}
  .assure-media img{aspect-ratio:16/9}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .hero-copy h1{font-size:28px;line-height:1.34}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .feature-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .flow-item{border-right:0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding:18px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
}