/* roulang page: index */
:root{
  --primary:#0E4A66;
  --primary-hover:#0B3B52;
  --primary-2:#1E7A9E;
  --primary-3:#3E9AB8;
  --primary-soft:#EAF3F7;
  --accent:#E07A3F;
  --accent-soft:#FCF0E8;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --border:#DCE7ED;
  --ink:#10222C;
  --text:#48585F;
  --muted:#7A8890;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-card:14px;
  --r-img:12px;
  --r-pill:999px;
  --r-input:10px;
  --shadow:0 1px 2px rgba(16,34,44,.04),0 12px 28px -12px rgba(14,74,102,.16);
  --shadow-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --gap-section:clamp(64px,8vw,112px);
  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-hover);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(14,74,102,.25);outline-offset:2px;}
h1,h2,h3,h4,h5{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
@media(max-width:1199px){.wrap{padding:0 20px;}}
@media(max-width:767px){.wrap{padding:0 16px;}}

/* ============ 悬浮胶囊导航 ============ */
.site-head{position:sticky;top:0;z-index:1040;padding:16px 0 0;}
.capsule{
  display:flex;align-items:center;gap:18px;
  min-height:62px;
  padding:8px 10px 8px 20px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-head.is-scrolled .capsule{background:rgba(255,255,255,.96);box-shadow:0 18px 36px -18px rgba(14,74,102,.30);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--primary-3));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-text span{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 13px;
  font-size:14px;color:var(--text);border-radius:var(--r-pill);
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{background:var(--primary-soft);color:var(--primary);}
.nav-links a.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.nav-cta{margin-left:8px;flex-shrink:0;}
.nav-toggle{
  margin-left:auto;
  width:46px;height:46px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:#fff;color:var(--primary);
  display:none;align-items:center;justify-content:center;font-size:17px;
}
.nav-drawer{
  margin-top:10px;background:#fff;border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow);padding:10px;
}
.nav-drawer a{
  display:flex;align-items:center;min-height:48px;
  padding:0 14px;font-size:15px;color:var(--text);border-radius:10px;
  border-bottom:1px solid #EEF4F7;
}
.nav-drawer a:last-of-type{border-bottom:none;}
.nav-drawer a.active{color:var(--primary);font-weight:600;background:var(--primary-soft);}
.nav-drawer .drawer-cta{margin-top:8px;width:100%;justify-content:center;}
@media(max-width:1199px){
  .nav-links a{padding:0 9px;font-size:13.5px;}
  .brand-text{font-size:16px;}
}
@media(max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media(min-width:992px){
  .nav-drawer{display:none !important;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  box-shadow:none;
}
.btn-primary{
  background:var(--primary);color:#fff;border-color:var(--primary);
}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-outline{
  background:transparent;color:var(--primary);border-color:var(--primary);
}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);}
.btn-accent{
  background:var(--accent);color:#fff;border-color:var(--accent);
}
.btn-accent:hover{background:#CC6B33;border-color:#CC6B33;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-sm{min-height:42px;padding:9px 18px;font-size:14px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:2px solid rgba(14,74,102,.25);padding-bottom:2px;
}
.link-more i{transition:transform .18s ease;}
.link-more:hover{border-bottom-color:var(--accent);color:var(--primary-hover);}
.link-more:hover i{transform:translateX(4px);}
@media(max-width:575px){
  .btn{width:100%;}
  .capsule{padding:8px 8px 8px 16px;gap:10px;}
  .brand-text{font-size:15px;}
}

/* ============ Hero ============ */
.hero{padding:26px 0 0;}
.hero-card{
  position:relative;
  border-radius:24px;
  border:1px solid var(--border);
  overflow:hidden;
  background-image:linear-gradient(rgba(255,255,255,.88),rgba(255,255,255,.88)),linear-gradient(rgba(14,74,102,.06),rgba(14,74,102,.06)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  padding:clamp(30px,4.6vw,62px);
}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,54px);align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--primary);font-weight:600;
  background:rgba(14,74,102,.07);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.hero-title{margin-bottom:16px;}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text);max-width:520px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.micro-stats{
  display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;
  border-top:1px solid rgba(14,74,102,.14);
}
.micro-item strong{
  display:block;font-size:26px;line-height:1.2;color:var(--primary);font-weight:700;
}
.micro-item span{font-size:13px;color:var(--muted);}
.hero-media{
  border-radius:16px;overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow);background:#fff;
}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
@media(max-width:991px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-media img{aspect-ratio:16/10;max-height:300px;}
}
@media(max-width:575px){
  .hero-card{border-radius:20px;}
  .hero-actions{gap:10px;}
  .micro-stats{gap:18px;}
  .micro-item strong{font-size:22px;}
}

/* ============ 板块通用 ============ */
.section{padding:var(--gap-section) 0 0;}
.section-alt{
  margin-top:var(--gap-section);
  background:var(--bg-alt);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:clamp(52px,6vw,88px) 0;
}
.section-head{margin-bottom:clamp(28px,3.4vw,48px);}
.section-head .eyebrow{margin-bottom:12px;}
.section-title{margin-bottom:12px;}
.section-desc{font-size:16px;color:var(--muted);max-width:680px;margin:0;}
.head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;
}

/* ============ 价值主张 ============ */
.value-block{max-width:760px;margin:0 auto;text-align:center;}
.value-block p{font-size:17px;color:var(--text);}
.points-row{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:42px;border-top:1px solid var(--border);
}
.point{padding:26px 24px 6px;border-right:1px solid var(--border);}
.point:last-child{border-right:none;}
.point i{font-size:20px;color:var(--primary);}
.point h3{font-size:17px;margin:14px 0 8px;}
.point p{font-size:14.5px;color:var(--muted);margin:0;}
@media(max-width:767px){
  .points-row{grid-template-columns:1fr;border-top:none;}
  .point{border-right:none;border-top:1px solid var(--border);padding:22px 0 4px;}
}

/* ============ 功能分组 ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,60px);
  align-items:center;padding:38px 0;border-bottom:1px solid var(--border);
}
.feature-row:last-child{border-bottom:none;}
.feature-row.reverse .feature-body{order:2;}
.feature-row.reverse .feature-media{order:1;}
.feature-num{
  font-size:clamp(44px,6vw,72px);font-weight:700;line-height:1;
  color:rgba(14,74,102,.14);letter-spacing:-.03em;margin-bottom:12px;
}
.feature-icon{
  width:46px;height:46px;border-radius:13px;
  border:1.5px solid var(--primary);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.feature-body h3{margin-bottom:12px;font-size:21px;}
.feature-body p{font-size:15.5px;color:var(--text);}
.feature-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--text);margin-bottom:8px;
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--primary-soft);border:2px solid var(--primary-3);
}
.feature-media{
  border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);
}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
@media(max-width:991px){
  .feature-row{grid-template-columns:1fr;gap:22px;}
  .feature-row.reverse .feature-body,
  .feature-row.reverse .feature-media{order:0;}
}

/* ============ 使用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start;}
.scene-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.scene-card.tall{padding-bottom:46px;}
.scene-card.lift{margin-top:26px;}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:17px;
  margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14.8px;color:var(--muted);margin-bottom:16px;}
.pill{
  display:inline-block;background:var(--primary-soft);color:var(--primary);
  font-size:12.5px;padding:4px 10px;border-radius:var(--r-pill);margin-bottom:14px;
}
.pill-accent{background:var(--accent-soft);color:#B45F2C;}
@media(max-width:767px){
  .scene-grid{grid-template-columns:1fr;}
  .scene-card.lift{margin-top:0;}
}

/* ============ 成功案例 ============ */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,3.4vw,46px);align-items:center;}
.case-media{border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.case-quote{
  border-left:3px solid var(--primary);padding-left:22px;
  font-size:19px;line-height:1.7;color:var(--ink);margin:0 0 20px;
}
.case-quote footer{font-size:14px;color:var(--muted);margin-top:12px;}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;}
.metric{border-top:2px solid var(--primary-soft);padding-top:14px;}
.metric strong{display:block;font-size:26px;color:var(--primary);line-height:1.2;}
.metric span{font-size:13.5px;color:var(--muted);}
@media(max-width:991px){
  .case-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;gap:14px;}
}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.price-card.featured{
  border:2px solid var(--primary);transform:translateY(-12px);
  box-shadow:0 18px 40px -16px rgba(14,74,102,.32);
}
.price-card.featured:hover{transform:translateY(-15px);}
.ribbon{
  position:absolute;top:-13px;right:20px;
  background:var(--accent);color:#fff;font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
}
.price-name{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.price-tag{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.price-amount{font-size:34px;font-weight:700;color:var(--primary);line-height:1.1;}
.price-amount small{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px;}
.price-list{margin:20px 0 24px;}
.price-list li{
  position:relative;padding-left:22px;font-size:14.5px;color:var(--text);margin-bottom:9px;
}
.price-list li i{position:absolute;left:0;top:5px;color:var(--primary-3);font-size:13px;}
@media(max-width:991px){
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-3px);}
}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  color:var(--text);transition:transform .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);color:var(--text);}
.news-cover{overflow:hidden;background:var(--bg-alt);}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:17.5px;line-height:1.45;margin:6px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14.5px;color:var(--muted);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--border);padding-top:14px;font-size:13px;color:var(--muted);
}
.news-meta i{color:var(--primary);}
.empty-state{
  grid-column:1/-1;text-align:center;background:#fff;border:1px dashed var(--border);
  border-radius:var(--r-card);padding:56px 24px;
}
.empty-state i{font-size:30px;color:var(--primary-3);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);margin-bottom:20px;}
@media(max-width:991px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:575px){.news-grid{grid-template-columns:1fr;}}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  min-height:60px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff;}
.faq-item p{padding:0 24px 22px;margin:0;font-size:15px;line-height:1.8;color:var(--muted);}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:var(--gap-section);
  background:linear-gradient(135deg,#E7F1F6,#EAF3F7);
  border:1px solid var(--border);border-radius:20px;
  padding:clamp(28px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:8px;}
.cta-band p{margin:0;color:var(--muted);font-size:15.5px;}

/* ============ 页脚 ============ */
.site-foot{
  margin-top:var(--gap-section);
  background:var(--bg-alt);border-top:1px solid var(--border);
  padding:clamp(44px,5vw,72px) 0 0;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14.5px;color:var(--muted);max-width:320px;}
.foot-title{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px;}
.foot-list li{margin-bottom:10px;}
.foot-list a{font-size:14px;color:var(--muted);}
.foot-list a:hover{color:var(--primary);}
.foot-contact li{font-size:14px;color:var(--muted);margin-bottom:10px;display:flex;gap:10px;}
.foot-contact i{color:var(--primary-3);margin-top:5px;}
.foot-bottom{
  margin-top:40px;border-top:1px solid var(--border);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
@media(max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:575px){.foot-grid{grid-template-columns:1fr;}}

/* roulang page: article */
:root{
  --brand:#0E4A66;
  --brand-hover:#0B3B52;
  --brand-2:#1E7A9E;
  --brand-3:#3E9AB8;
  --brand-soft:#EAF3F7;
  --accent:#E07A3F;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --line:#DCE7ED;
  --ink:#10222C;
  --body:#48585F;
  --muted:#7A8890;
  --success:#2E8B6B;
  --warn:#C0503A;
  --r-card:14px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(16,34,44,.04), 0 12px 28px -12px rgba(14,74,102,.16);
  --shadow-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --section:clamp(64px,8vw,112px);
  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
  --bs-body-color:#48585F;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-hover);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(14,74,102,.25);outline-offset:2px;border-radius:8px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
button{font-family:inherit;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-head{position:sticky;top:16px;z-index:1035;}
.capsule{
  display:flex;align-items:center;gap:16px;
  min-height:62px;padding:6px 8px 6px 18px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-head.is-scrolled .capsule{background:rgba(255,255,255,.96);box-shadow:0 8px 30px -10px rgba(14,74,102,.3);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:15px;
  box-shadow:0 6px 14px -6px rgba(14,74,102,.6);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.02em;}
.brand-text span{color:var(--brand-2);margin-left:1px;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;}
.nav-links a{
  padding:9px 13px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--body);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.nav-links a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:17px;align-items:center;justify-content:center;
}
.nav-drawer{
  margin-top:12px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow);overflow:hidden;
}
.nav-drawer a{
  display:block;padding:14px 20px;font-size:15px;color:var(--body);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.nav-drawer .drawer-cta{margin:14px;border-radius:var(--r-pill);text-align:center;border-bottom:0;}

/* ---------- 按钮 ---------- */
.btn{border-radius:var(--r-pill)!important;padding:12px 24px;font-weight:600;font-size:15px;border:1.5px solid transparent;transition:all .18s ease;line-height:1.4;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary,.btn-brand{background:var(--brand)!important;border-color:var(--brand)!important;color:#fff!important;box-shadow:0 8px 18px -10px rgba(14,74,102,.75);}
.btn-primary:hover,.btn-brand:hover{background:var(--brand-hover)!important;border-color:var(--brand-hover)!important;transform:translateY(-2px);color:#fff!important;}
.btn-outline-brand{background:transparent;border:1.5px solid var(--brand);color:var(--brand);}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;border-bottom:2px solid rgba(14,74,102,.25);padding-bottom:2px;}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 文章头部 ---------- */
.art-hero{
  margin-top:-78px;
  padding:132px 0 44px;
  background:
    linear-gradient(rgba(255,255,255,.93),rgba(255,255,255,.93)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.crumbs a{color:var(--brand);}
.crumbs a:hover{text-decoration:underline;}
.crumbs .sep{color:#B7C6CE;}
.crumbs .cur{max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);}
.art-hero h1{font-size:clamp(26px,3.6vw,40px);line-height:1.28;max-width:900px;margin-bottom:18px;}
.art-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);}
.art-meta .pill{background:var(--brand-soft);color:var(--brand);border-radius:var(--r-pill);padding:4px 12px;font-size:12.5px;font-weight:600;}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:#C2D2DA;display:inline-block;}
.art-meta time{font-variant-numeric:tabular-nums;}

/* ---------- 正文 ---------- */
.art-main{padding:clamp(48px,7vw,84px) 0 clamp(56px,7vw,96px);}
.art-body{max-width:760px;margin:0 auto;}
.rich{font-size:16.5px;line-height:1.9;color:var(--body);}
.rich>*:first-child{margin-top:0;}
.rich p{margin:0 0 1.2em;font-size:16.5px;line-height:1.9;}
.rich h2{
  position:relative;font-size:clamp(21px,2.3vw,26px);line-height:1.4;
  margin:2.2em 0 .9em;padding-left:14px;
}
.rich h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  border-radius:2px;background:var(--brand);
}
.rich h3{font-size:20px;line-height:1.45;margin:1.8em 0 .7em;}
.rich h4{font-size:17px;line-height:1.5;margin:1.6em 0 .6em;}
.rich ul,.rich ol{margin:0 0 1.3em;padding-left:1.45em;}
.rich li{margin:.5em 0;line-height:1.85;}
.rich ul li::marker,.rich ol li::marker{color:var(--brand-2);}
.rich blockquote{
  margin:1.7em 0;padding:18px 22px;
  background:var(--bg-alt);border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--body);
}
.rich blockquote p:last-child{margin-bottom:0;}
.rich img{border-radius:var(--r-img);margin:1.7em auto;border:1px solid var(--line);}
.rich figure{margin:1.7em 0;}
.rich figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.rich a{color:var(--brand);border-bottom:1px solid rgba(14,74,102,.3);}
.rich a:hover{border-bottom-color:var(--accent);color:var(--brand-hover);}
.rich hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}
.rich table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:1.7em 0;font-size:15px;border:1px solid var(--line);
  border-radius:var(--r-img);overflow:hidden;
}
.rich thead th{background:var(--brand-soft);color:var(--brand);font-weight:600;text-align:left;padding:13px 15px;}
.rich td{padding:13px 15px;border-top:1px solid var(--line);color:var(--body);}
.rich tbody tr:nth-child(even) td{background:#F8FBFC;}
.rich pre{background:#0E2A36;color:#E8F3F7;padding:16px 18px;border-radius:var(--r-img);overflow-x:auto;font-size:14px;}

.art-empty{
  text-align:center;background:var(--card);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow);padding:56px 28px;
}
.art-empty i{font-size:34px;color:var(--brand-3);margin-bottom:18px;display:block;}
.art-empty h2{font-size:22px;margin-bottom:10px;}
.art-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.rel{padding:0 0 var(--section);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;}
.sec-head p{margin:8px 0 0;color:var(--muted);font-size:14.5px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card-art{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;height:100%;
  transition:transform .18s ease,box-shadow .18s ease;color:inherit;
}
.card-art:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);color:inherit;}
.card-art .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.card-art .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-art:hover .thumb img{transform:scale(1.04);}
.card-art .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-art h3{font-size:17px;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-art p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-art .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.pill{display:inline-block;background:var(--brand-soft);color:var(--brand);border-radius:var(--r-pill);padding:4px 11px;font-size:12.5px;font-weight:600;}
.pill-accent{background:#FDF0E8;color:#B85C22;}
.back-row{margin-top:34px;text-align:center;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 var(--section);}
.cta-card{
  background:linear-gradient(120deg,#E9F3F8,#F4FAFC);
  border:1px solid rgba(14,74,102,.12);border-radius:20px;
  padding:clamp(28px,4vw,46px);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-card h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:10px;}
.cta-card p{margin:0;color:var(--muted);font-size:15px;max-width:60ch;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--bg-alt);border-top:1px solid var(--line);padding:clamp(48px,6vw,72px) 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:34ch;}
.foot-col h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px;}
.foot-col a,.foot-col span{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .18s ease;}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:clamp(36px,5vw,56px);border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .wrap{padding:0 20px;}
  .nav-links a{padding:8px 10px;font-size:14px;}
}
@media (max-width:991px){
  .wrap{padding:0 20px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .capsule{padding:6px 8px 6px 16px;}
  .art-hero{padding:120px 0 38px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  body{font-size:15px;}
  .art-hero{margin-top:-70px;padding:112px 0 32px;}
  .art-hero h1{font-size:clamp(22px,6vw,30px);}
  .rich,.rich p{font-size:15.5px;line-height:1.85;}
  .grid-3{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:575px){
  .btn{width:100%;text-align:center;}
  .btn-sm,.nav-toggle{width:auto;}
  .art-main{padding:48px 0 64px;}
  .rich img{max-height:250px;object-fit:cover;width:100%;}
  .foot-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category1 */
:root{
  --brand:#0E4A66;
  --brand-dark:#0B3B52;
  --brand-1:#1E7A9E;
  --brand-2:#3E9AB8;
  --brand-soft:#EAF3F7;
  --accent:#E07A3F;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --line:#DCE7ED;
  --title:#10222C;
  --text:#48585F;
  --muted:#7A8890;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-card:14px;
  --r-lg:20px;
  --r-input:10px;
  --shadow:0 1px 2px rgba(16,34,44,.04),0 12px 28px -12px rgba(14,74,102,.16);
  --shadow-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --sec:clamp(64px,8vw,112px);
  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.2em;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(14,74,102,.25);outline-offset:2px;border-radius:6px;}
ul{margin:0;padding:0;list-style:none;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand);
  font-weight:600;
  margin-bottom:12px;
}
.sec{padding:var(--sec) 0;}
.sec-alt{background:var(--bg-alt);}
.lead{max-width:760px;font-size:16px;color:var(--text);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-head{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:0 0 8px;
}
.capsule{
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
  padding:0 14px 0 18px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  border-radius:999px;
  box-shadow:var(--shadow);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-head.is-scrolled .capsule{
  background:rgba(255,255,255,.96);
  box-shadow:0 18px 36px -14px rgba(14,74,102,.28);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--title);
  font-weight:700;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  transform:rotate(-6deg);
}
.brand-text{font-size:17px;line-height:1;}
.brand-text span{color:var(--brand-1);margin-left:2px;}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:14px;
  color:var(--text);
  border-radius:999px;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{
  color:var(--brand);
  background:var(--brand-soft);
  font-weight:600;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1.5px solid transparent;
  transition:all .18s ease;
  cursor:pointer;
}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:var(--brand);
  font-size:17px;
}
.nav-drawer{
  margin-top:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.nav-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 18px;
  font-size:15px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.drawer-cta{margin:12px;border-radius:999px;}

/* ---------- 分类头部 ---------- */
.cat-hero{
  position:relative;
  padding:clamp(36px,5vw,64px) 0 clamp(48px,6vw,80px);
  background:
    linear-gradient(rgba(255,255,255,.88),rgba(255,255,255,.88)),
    linear-gradient(rgba(14,74,102,.06),rgba(14,74,102,.06)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.crumb a{color:var(--brand);}
.crumb a:hover{text-decoration:underline;}
.crumb .sep{color:#B9C8D0;}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.cat-hero p{max-width:560px;color:var(--text);}
.cat-hero h1 span{color:var(--brand-1);}
.hero-figure{
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
}
.badge-pill.accent{background:rgba(224,122,63,.12);color:#B85E2A;}

/* ---------- 通用板块标题 ---------- */
.sec-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px);}
.sec-head p{margin-top:14px;margin-bottom:0;color:var(--muted);}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(28px,5vw,64px);
  align-items:center;
}
.split + .split{margin-top:clamp(48px,7vw,88px);}
.split.reverse .split-text{order:2;}
.split.reverse .split-media{order:1;}
.split-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:#fff;
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,74,102,0) 55%,rgba(14,74,102,.10));
  pointer-events:none;
}
.split-text .ico{
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1.5px solid var(--brand-2);
  color:var(--brand);
  font-size:19px;
  margin-bottom:18px;
}
.split-text h3{margin-bottom:14px;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text);
}
.check-list i{color:var(--ok);margin-top:5px;font-size:13px;}
.ghost-num{
  position:absolute;
  top:14px;left:18px;
  font-size:clamp(40px,6vw,68px);
  font-weight:700;
  color:rgba(255,255,255,.85);
  text-shadow:0 2px 10px rgba(16,34,44,.18);
  line-height:1;
  letter-spacing:-.02em;
}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:clamp(32px,5vw,56px);
}
.metric{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.metric .v{
  font-size:30px;
  font-weight:700;
  color:var(--brand);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.metric .k{font-size:14px;color:var(--muted);margin-top:6px;}

/* ---------- 要点清单区块 ---------- */
.panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(24px,3.5vw,40px);
  box-shadow:var(--shadow);
}
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 40px;
  margin-top:24px;
}
.point-grid li{
  display:flex;
  gap:14px;
  padding:20px 0;
  border-top:1px solid var(--line);
}
.point-grid li i{
  width:38px;height:38px;
  flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:15px;
}
.point-grid h4{margin-bottom:4px;}
.point-grid p{margin:0;font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--title);
  min-height:44px;
  cursor:pointer;
}
.faq-q .sign{
  flex:0 0 30px;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:14px;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.open .faq-q .sign{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{
  display:none;
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.faq-item.open .faq-a{display:block;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--brand-soft),#F7FBFD);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,44px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);}
.cta-band p{margin:8px 0 0;color:var(--muted);}

/* ---------- 相关入口 ---------- */
.related{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:32px;
}
.related a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:20px 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  color:var(--title);
  font-weight:600;
  font-size:15px;
  transition:transform .18s ease,box-shadow .18s ease,color .18s ease;
}
.related a span{color:var(--brand);display:inline-flex;align-items:center;gap:8px;transition:gap .18s ease;}
.related a:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);color:var(--brand);}
.related a:hover span{gap:14px;}
.related small{display:block;font-weight:400;color:var(--muted);font-size:13px;margin-top:4px;}

/* ---------- 表单 ---------- */
.form-panel{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px,4vw,48px);
  align-items:center;
}
.form-grid{display:grid;gap:16px;}
.form-grid label{display:block;font-size:14px;font-weight:600;color:var(--title);margin-bottom:6px;}
.form-control{
  width:100%;
  height:48px;
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease;
}
textarea.form-control{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;}
.form-control:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,74,102,.12);}
.form-note{font-size:13px;color:var(--muted);margin:0;}
.form-error{display:none;font-size:13px;color:var(--warn);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  margin-top:clamp(64px,8vw,112px);
  padding:clamp(48px,6vw,72px) 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:clamp(24px,4vw,48px);
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:320px;}
.foot-col h4{font-size:15px;margin-bottom:16px;font-weight:600;}
.foot-col a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:6px 0;
}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:clamp(32px,5vw,48px);
  padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .wrap{padding:0 20px;}
  .nav-links a{padding:0 10px;font-size:13.5px;}
  .cat-hero-grid{grid-template-columns:1fr 1fr;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .related{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .capsule{height:62px;}
  .cat-hero-grid,.split,.form-panel{grid-template-columns:1fr;}
  .split.reverse .split-text{order:1;}
  .split.reverse .split-media{order:2;}
  .point-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  body{font-size:15px;line-height:1.75;}
  .wrap{padding:0 16px;}
  .capsule{padding:0 10px 0 14px;}
  .related{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .metrics{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  .btn{width:100%;}
  .nav-cta,.drawer-cta{width:auto;}
  .split-media img,.hero-figure img{aspect-ratio:auto;height:230px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a{padding:0 18px 20px;}
}

/* roulang page: category2 */
:root{
  --brand:#0E4A66;
  --brand-dark:#0B3B52;
  --brand-mid:#1E7A9E;
  --brand-soft:#3E9AB8;
  --brand-tint:#EAF3F7;
  --accent:#E07A3F;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --line:#DCE7ED;
  --ink:#10222C;
  --text:#48585F;
  --muted:#7A8890;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-card:14px;
  --r-img:12px;
  --r-lg:20px;
  --r-input:10px;
  --shadow:0 1px 2px rgba(16,34,44,.04),0 12px 28px -12px rgba(14,74,102,.16);
  --shadow-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --sec:clamp(64px,8vw,112px);

  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
  --bs-link-color:#0E4A66;
  --bs-link-hover-color:#0B3B52;
  --bs-body-color:#48585F;
  --bs-body-bg:#F5F9FB;
  --bs-border-color:#DCE7ED;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
li{margin-bottom:.4em;}
button,input,textarea,select{font:inherit;}
:focus-visible{outline:3px solid rgba(14,74,102,.35);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:1199px){.wrap{padding:0 20px;}}
@media (max-width:767px){.wrap{padding:0 16px;}}

/* ---------- 悬浮胶囊导航 ---------- */
.site-head{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:16px 0 0;
}
.capsule{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  border-radius:999px;
  box-shadow:var(--shadow);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-head.is-scrolled .capsule{
  background:rgba(255,255,255,.96);
  box-shadow:0 18px 36px -14px rgba(14,74,102,.28);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  box-shadow:0 8px 18px -10px rgba(14,74,102,.7);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-text span{color:var(--brand-mid);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
  flex:1 1 auto;
  justify-content:center;
  min-width:0;
}
.nav-links a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 13px;
  border-radius:999px;
  font-size:14px;
  color:var(--text);
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-links a:hover{background:var(--brand-tint);color:var(--brand);}
.nav-links a.active{
  background:var(--brand-tint);
  color:var(--brand);
  font-weight:600;
}
.nav-cta{
  flex:0 0 auto;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  border-radius:999px;
  font-size:17px;
  flex:0 0 auto;
}
.nav-drawer{
  margin-top:12px;
  padding:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
}
.nav-drawer a{
  display:block;
  padding:12px 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.active{color:var(--brand);background:var(--brand-tint);font-weight:600;}
.nav-drawer a:hover{background:var(--brand-tint);color:var(--brand);}
.nav-drawer .drawer-cta{
  margin-top:10px;
  width:100%;
  text-align:center;
  justify-content:center;
  border-bottom:0;
}

@media (max-width:1099px){
  .nav-links a{padding:0 10px;font-size:13.5px;}
  .nav-cta{display:none;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .capsule{justify-content:space-between;padding:0 10px 0 14px;}
  .brand{margin-right:auto;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn:focus-visible{box-shadow:0 0 0 3px rgba(14,74,102,.25);}
.btn-primary{
  --bs-btn-bg:var(--brand);
  --bs-btn-border-color:var(--brand);
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:var(--brand-dark);
  --bs-btn-hover-border-color:var(--brand-dark);
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--brand-dark);
  --bs-btn-active-border-color:var(--brand-dark);
  --bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--brand);
  --bs-btn-disabled-border-color:var(--brand);
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.btn-outline-brand{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-outline-brand:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-2px);}
.btn-accent{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.btn-accent:hover{background:#c96a33;border-color:#c96a33;color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  border-bottom:2px solid rgba(14,74,102,.25);
  padding-bottom:2px;
  transition:border-color .18s ease,color .18s ease;
}
.link-more i{transition:transform .18s ease;}
.link-more:hover{border-color:var(--accent);color:var(--brand-dark);}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{
  background:var(--brand);
  color:rgba(255,255,255,.86);
  border-radius:var(--r-lg);
}
.section-dark h2,.section-dark h3{color:#fff;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  color:var(--brand-mid);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center .eyebrow{justify-content:center;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
.lead{font-size:17px;line-height:1.8;color:var(--text);}
.muted{color:var(--muted);font-size:14px;}

/* ---------- 分类头部 ---------- */
.page-hero{
  position:relative;
  margin-top:-88px;
  padding:150px 0 64px;
  background:
    linear-gradient(rgba(245,249,251,.90),rgba(245,249,251,.94)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:20px;
}
.crumb a{color:var(--brand);}
.crumb a:hover{text-decoration:underline;}
.crumb .sep{color:#b9c8d0;}
.crumb .cur{color:var(--muted);}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.hero-copy h1{margin-bottom:18px;}
.hero-copy h1 em{
  font-style:normal;
  color:var(--brand-mid);
}
.hero-copy .lead{max-width:640px;margin-bottom:26px;}
.hero-figure{
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-tint);
  color:var(--brand);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-pill.accent{background:#FBEDE4;color:#B65C26;}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/9;}
  .page-hero{padding:132px 0 52px;}
}
@media (max-width:575px){
  .hero-figure img{max-height:240px;}
}

/* ---------- 卡片网格 2×2 ---------- */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card-tile{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card-tile:hover,.card-tile:focus-within{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(14,74,102,.22);
}
.tile-icon{
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1.5px solid rgba(14,74,102,.28);
  color:var(--brand);
  font-size:18px;
  margin-bottom:18px;
  background:var(--brand-tint);
}
.card-tile h3{margin-bottom:10px;}
.card-tile p{color:var(--text);font-size:15.5px;}
.tile-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:var(--muted);
}
@media (max-width:767px){
  .grid-2{grid-template-columns:1fr;}
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.split + .split{margin-top:clamp(48px,6vw,88px);}
.split-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-body h3{margin-bottom:14px;}
.mini-list{list-style:none;padding:0;margin:18px 0 0;}
.mini-list li{
  position:relative;
  padding-left:26px;
  font-size:15.5px;
  margin-bottom:10px;
}
.mini-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;top:2px;
  font-size:12px;
  color:var(--brand-mid);
}
@media (max-width:991px){
  .split{grid-template-columns:1fr;}
  .split.reverse .split-media{order:-1;}
}

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:24px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h4{margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}
@media (max-width:991px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575px){.steps{grid-template-columns:1fr;}}

/* ---------- 深色面板 ---------- */
.panel-dark{
  padding:clamp(30px,4vw,52px);
  background:var(--brand);
  border-radius:var(--r-lg);
  color:rgba(255,255,255,.85);
  position:relative;
  overflow:hidden;
}
.panel-dark::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:260px;height:260px;
  border-radius:50%;
  background:rgba(62,154,184,.25);
  filter:blur(6px);
}
.panel-dark h2{color:#fff;margin-bottom:16px;}
.panel-dark p{color:rgba(255,255,255,.82);}
.panel-dark .eyebrow{color:#8FD0E6;}
.panel-dark .eyebrow::before{background:var(--accent);}
.panel-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  margin-top:32px;
}
.panel-item{
  padding:20px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.panel-item strong{
  display:block;
  color:#fff;
  font-size:17px;
  margin-bottom:8px;
}
.panel-item span{font-size:14.5px;color:rgba(255,255,255,.78);}
@media (max-width:991px){.panel-grid{grid-template-columns:1fr;}}

/* ---------- 清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
.check-item i{
  color:var(--brand-mid);
  font-size:16px;
  margin-top:4px;
}
.check-item strong{display:block;color:var(--ink);font-size:16px;margin-bottom:6px;}
.check-item p{margin:0;font-size:14.5px;color:var(--text);}
@media (max-width:767px){.check-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.acc .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--shadow);
  margin-bottom:16px;
  overflow:hidden;
}
.acc .accordion-button{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  padding:20px 24px;
  box-shadow:none;
  gap:16px;
}
.acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:var(--brand-tint);
}
.acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(14,74,102,.18);}
.acc .accordion-button::after{
  content:"+";
  font-family:inherit;
  font-size:22px;
  line-height:1;
  width:auto;height:auto;
  background-image:none;
  color:var(--brand);
  transform:none;
  transition:transform .2s ease,color .2s ease;
  margin-left:auto;
}
.acc .accordion-button:not(.collapsed)::after{
  content:"\2212";
  transform:rotate(180deg);
  color:var(--accent);
}
.acc .accordion-body{
  padding:6px 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  background:#fff;
}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  padding:clamp(28px,4vw,46px);
  background:var(--brand-tint);
  border:1px solid rgba(14,74,102,.14);
  border-radius:var(--r-lg);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:8px;}
.cta-band p{margin:0;color:var(--text);font-size:15.5px;}

/* ---------- 相关入口 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:block;
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.related-card span{font-size:12.5px;color:var(--muted);letter-spacing:.04em;}
.related-card h3{font-size:17px;margin:10px 0 8px;color:var(--ink);}
.related-card p{margin:0;font-size:14.5px;color:var(--muted);}
@media (max-width:991px){.related-grid{grid-template-columns:1fr;}}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:var(--sec);
  padding:clamp(48px,6vw,76px) 0 26px;
  background:var(--bg-alt);
  border-top:1px solid var(--line);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14.5px;color:var(--muted);max-width:320px;}
.foot-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:16px;
}
.foot-col a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:6px 0;
}
.foot-col a:hover{color:var(--brand);}
.foot-col p{font-size:14px;color:var(--muted);margin:0 0 8px;}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:var(--muted);
}
@media (max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr;}}

/* roulang page: category3 */
:root{
  --primary:#0E4A66;
  --primary-hover:#0B3B52;
  --primary-2:#1E7A9E;
  --primary-3:#3E9AB8;
  --primary-soft:#EAF3F7;
  --accent:#E07A3F;
  --ink:#10222C;
  --body:#48585F;
  --muted:#7A8890;
  --line:#DCE7ED;
  --bg:#F5F9FB;
  --alt:#EEF5F8;
  --card:#FFFFFF;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-btn:999px;
  --r-card:14px;
  --r-input:10px;
  --r-img:12px;
  --r-block:20px;
  --sh:0 1px 2px rgba(16,34,44,.04), 0 12px 28px -12px rgba(14,74,102,.16);
  --sh-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --section:clamp(64px,8vw,112px);
  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
  --bs-link-color:#0E4A66;
  --bs-link-hover-color:#0B3B52;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-hover);text-decoration:underline;}
a:visited{color:var(--primary);}
button{font:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.28;font-weight:700;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
strong{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid rgba(14,74,102,.28);outline-offset:2px;border-radius:10px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section) 0;}
.section-alt{background:var(--alt);}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,48px);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head p{margin-top:14px;color:var(--body);}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--primary-3);text-transform:uppercase;margin-bottom:10px;}
.h1-tag{display:inline-block;vertical-align:middle;font-size:.42em;letter-spacing:0;background:var(--primary-soft);color:var(--primary);padding:7px 16px;border-radius:999px;margin-left:12px;font-weight:600;line-height:1.4;}

/* ---------- 导航 ---------- */
.site-head{position:sticky;top:0;z-index:60;padding-top:16px;}
.capsule{
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:8px 12px 8px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  box-shadow:var(--sh);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-head.is-scrolled .capsule{background:rgba(255,255,255,.96);box-shadow:var(--sh-hover);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-size:15px;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-text span{color:var(--primary-3);font-size:13px;font-weight:600;margin-left:2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  font-size:14.5px;color:var(--body);padding:9px 12px;border-radius:999px;
  white-space:nowrap;transition:background .18s ease,color .18s ease;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft);text-decoration:none;}
.nav-links a.active{color:var(--primary);background:var(--primary-soft);font-weight:600;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--primary);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.nav-drawer{
  margin-top:10px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--sh);padding:10px;
}
.nav-drawer a{
  display:block;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--body);
  border-bottom:1px solid var(--alt);
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.active{color:var(--primary);font-weight:600;background:var(--primary-soft);}
.nav-drawer a:hover{background:var(--primary-soft);text-decoration:none;}
.nav-drawer .drawer-cta{margin-top:10px;width:100%;text-align:center;color:#fff;border-bottom:0;}
.nav-drawer .drawer-cta:hover{background:var(--primary-hover);color:#fff;}
@media (min-width:992px){.nav-drawer{display:none !important;}}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .capsule{justify-content:space-between;}
}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  border-radius:var(--r-btn);
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-width:1.5px;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{
  --bs-btn-bg:#0E4A66;--bs-btn-border-color:#0E4A66;--bs-btn-color:#fff;
  --bs-btn-hover-bg:#0B3B52;--bs-btn-hover-border-color:#0B3B52;--bs-btn-hover-color:#fff;
  --bs-btn-active-bg:#0B3B52;--bs-btn-active-border-color:#0B3B52;--bs-btn-active-color:#fff;
  --bs-btn-focus-shadow-rgb:14,74,102;
  background:var(--primary);border-color:var(--primary);color:#fff;
}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-2px);text-decoration:none;}
.btn-outline-primary{
  --bs-btn-color:#0E4A66;--bs-btn-border-color:#0E4A66;
  --bs-btn-hover-bg:#EAF3F7;--bs-btn-hover-border-color:#0E4A66;--bs-btn-hover-color:#0E4A66;
  --bs-btn-active-bg:#EAF3F7;--bs-btn-active-color:#0E4A66;--bs-btn-focus-shadow-rgb:14,74,102;
  color:var(--primary);border-color:var(--primary);background:transparent;
}
.btn-outline-primary:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);text-decoration:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--primary);border-bottom:2px solid rgba(14,74,102,.28);padding-bottom:2px;
}
.btn-link-arrow i{transition:transform .18s ease;}
.btn-link-arrow:hover{text-decoration:none;color:var(--primary-hover);border-bottom-color:var(--primary-hover);}
.btn-link-arrow:hover i{transform:translateX(4px);}

/* ---------- 分类头部 ---------- */
.cat-hero{
  position:relative;margin-top:18px;border-radius:var(--r-block);overflow:hidden;
  border:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.86) 48%,rgba(255,255,255,.72) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;background:rgba(14,74,102,.06);
}
.cat-hero-inner{position:relative;z-index:2;padding:clamp(32px,4.6vw,60px) 0;}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,3.4vw,48px);align-items:center;}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.crumb a{color:var(--primary);}
.crumb a:hover{text-decoration:underline;}
.crumb span{margin:0 8px;color:#B6C4CC;}
.crumb .current{color:var(--muted);}
.cat-hero h1{margin:6px 0 16px;}
.lead{font-size:16.5px;color:var(--body);max-width:60ch;}
.ministat{display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,40px);margin-top:26px;}
.ministat div{min-width:88px;}
.ministat strong{display:block;font-size:24px;color:var(--primary);line-height:1.2;}
.ministat span{font-size:13px;color:var(--muted);}
.hero-figure{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh);background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;}
@media (max-width:991.98px){
  .cat-hero-grid{grid-template-columns:1fr;}
  .hero-figure{max-width:560px;}
}

/* ---------- 时间轴 ---------- */
.tl{position:relative;margin-top:8px;}
.tl::before{
  content:"";position:absolute;left:31px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--primary-3),var(--line));
}
.tl-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:relative;z-index:2;width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;background:#fff;border:2px solid var(--primary-3);
  color:var(--primary);font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px -10px rgba(14,74,102,.5);
}
.tl-item:hover .tl-dot{background:var(--primary);color:#fff;border-color:var(--primary);}
.tl-dot{transition:background .2s ease,color .2s ease,border-color .2s ease;}
.tl-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh);transition:transform .18s ease,box-shadow .18s ease;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.tl-body h3{margin-bottom:10px;}
.tl-body p{font-size:15.5px;color:var(--body);}
.tl-note{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--muted);}
.tl-note i{color:var(--primary-3);}
@media (max-width:767.98px){
  .tl::before{display:none;}
  .tl-item{grid-template-columns:1fr;gap:14px;}
  .tl-dot{width:52px;height:52px;font-size:15px;}
}

/* ---------- 平台卡 ---------- */
.plat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.plat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh);transition:transform .18s ease,box-shadow .18s ease;
  display:flex;flex-direction:column;
}
.plat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.plat-card:first-child{grid-row:span 2;}
.plat-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:16px;
  border:1px solid rgba(14,74,102,.14);
}
.plat-card h3{margin-bottom:10px;}
.plat-card p{font-size:15.5px;}
.plat-card .tag{
  display:inline-block;font-size:12.5px;padding:4px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);margin-right:8px;margin-top:14px;
}
.plat-card figure{margin:18px 0 0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.plat-card figure img{border-radius:0;aspect-ratio:16/10;object-fit:cover;width:100%;}
@media (max-width:767.98px){
  .plat-grid{grid-template-columns:1fr;}
  .plat-card:first-child{grid-row:auto;}
}

/* ---------- 说明块 ---------- */
.note-list{margin-top:8px;}
.note-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);font-size:15.5px;
}
.note-list li:last-child{border-bottom:0;}
.note-list i{color:var(--accent);margin-top:6px;font-size:14px;}
.note-list strong{display:block;color:var(--ink);margin-bottom:4px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:var(--r-card) !important;
  overflow:hidden;margin-bottom:14px;background:#fff;box-shadow:var(--sh);
}
.accordion-button{
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:18px 22px;background:#fff;box-shadow:none !important;
  min-height:56px;
}
.accordion-button::after{display:none !important;}
.accordion-button:not(.collapsed){color:var(--primary);background:#fff;}
.accordion-button:focus{border-color:var(--primary) !important;}
.accordion-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 auto;color:var(--primary);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.accordion-button:not(.collapsed) .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(135deg,#EAF3F7 0%,#F5F9FB 100%);
  border:1px solid var(--line);border-radius:var(--r-block);
  padding:clamp(28px,4vw,44px);
}
.cta-band h2{font-size:clamp(22px,2.3vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--body);max-width:56ch;}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}
@media (max-width:767.98px){
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;text-align:center;}
}

/* ---------- 相关入口 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rel-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:22px 24px;border-radius:var(--r-card);border:1px solid var(--line);
  background:#fff;box-shadow:var(--sh);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-link:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(14,74,102,.28);text-decoration:none;}
.rel-link span{font-size:15.5px;font-weight:600;color:var(--ink);}
.rel-link small{display:block;font-size:13px;color:var(--muted);font-weight:400;margin-top:4px;}
.rel-link i{color:var(--primary);transition:transform .18s ease;}
.rel-link:hover i{transform:translateX(4px);}
@media (max-width:991.98px){.rel-grid{grid-template-columns:1fr;}}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--alt);border-top:1px solid var(--line);margin-top:var(--section);padding:60px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-mark{background:var(--primary);}
.foot-desc{font-size:14px;color:var(--muted);max-width:34ch;}
.foot-grid h4{font-size:15px;margin-bottom:14px;color:var(--ink);}
.foot-grid a{display:block;font-size:14px;color:var(--muted);padding:5px 0;}
.foot-grid a:hover{color:var(--primary);text-decoration:underline;}
.foot-info{font-size:14px;color:var(--muted);}
.foot-info strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px;}
.foot-bottom{
  border-top:1px solid var(--line);margin-top:36px;padding-top:18px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
@media (max-width:991.98px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr;}
  .wrap{padding:0 16px;}
  body{font-size:15px;line-height:1.75;}
  .btn{width:100%;text-align:center;}
  .nav-cta,.btn-sm{width:auto;}
  .hero-figure img{max-height:250px;}
  .ministat{gap:18px;}
}

/* roulang page: category4 */
:root{
  --primary:#0E4A66;
  --primary-d:#0B3B52;
  --primary-l:#1E7A9E;
  --primary-l2:#3E9AB8;
  --primary-soft:#EAF3F7;
  --primary-soft-2:#E1EEF5;
  --accent:#E07A3F;
  --ink:#10222C;
  --body:#48585F;
  --muted:#7A8890;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --line:#DCE7ED;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-btn:999px;
  --r-card:14px;
  --r-input:10px;
  --r-img:12px;
  --r-block:20px;
  --shadow:0 1px 2px rgba(16,34,44,.04),0 12px 28px -12px rgba(14,74,102,.16);
  --shadow-h:0 18px 36px -14px rgba(14,74,102,.28);
  --sec:clamp(64px,8vw,112px);
  --bs-primary:#0E4A66;
  --bs-primary-rgb:14,74,102;
  --bs-link-color:#0E4A66;
  --bs-link-hover-color:#0B3B52;
  --bs-body-color:#48585F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--primary-d);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(14,74,102,.25);outline-offset:2px;border-radius:8px;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:1199.98px){.wrap{padding:0 20px;}}
@media (max-width:767.98px){.wrap{padding:0 16px;}}

/* ============ 导航 ============ */
.site-head{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:0 0 8px;
}
.capsule{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
  padding:0 14px 0 20px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  box-shadow:var(--shadow);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-head.is-scrolled .capsule{
  background:rgba(255,255,255,.96);
  box-shadow:var(--shadow-h);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-size:15px;
  clip-path:polygon(12% 0,100% 0,88% 100%,0 100%);
}
.brand-text span{color:var(--primary);}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 13px;
  border-radius:var(--r-btn);
  color:var(--body);
  font-size:14.5px;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-links a:hover{background:var(--primary-soft);color:var(--primary);}
.nav-links a.active{
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:600;
}
.nav-cta{flex:0 0 auto;margin-left:6px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  color:var(--primary);
  border-radius:12px;
  font-size:17px;
  margin-left:auto;
}
.nav-drawer{
  display:none;
  margin-top:12px;
  padding:10px 12px;
  border-radius:16px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.nav-drawer.show{display:block;}
.nav-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-bottom:1px solid var(--line);
  color:var(--body);
  font-size:15px;
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.active{color:var(--primary);font-weight:600;}
.drawer-cta{
  margin-top:10px;
  width:100%;
  justify-content:center;
  border-bottom:0 !important;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn.btn-primary:hover,.btn.btn-primary:active{
  background:var(--primary-d);
  border-color:var(--primary-d);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 24px -12px rgba(14,74,102,.5);
}
.btn.btn-ghost{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn.btn-ghost:hover,.btn.btn-ghost:active{
  background:var(--primary-soft);
  color:var(--primary-d);
  transform:translateY(-2px);
}
.btn.btn-sm{
  min-height:40px;
  padding:8px 18px;
  font-size:14px;
}
.btn.btn-accent{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.btn.btn-accent:hover{background:#c96a33;border-color:#c96a33;color:#fff;transform:translateY(-2px);}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--accent);}
.link-more i{transition:transform .18s ease;}
.link-more:hover i{transform:translateX(4px);}

.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-btn);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--primary-l);
  font-weight:600;
  text-transform:uppercase;
}

/* ============ 分类头部 ============ */
.cat-hero{
  position:relative;
  margin-top:-88px;
  padding:150px 0 0;
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(245,249,251,.92)),url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  background-color:var(--bg-alt);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(28px,4vw,56px);
  align-items:center;
  padding-bottom:clamp(48px,6vw,72px);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:18px;
}
.crumb a{color:var(--primary);}
.crumb a:hover{text-decoration:underline;}
.crumb .sep{color:#B9C8D1;}
.crumb .cur{color:var(--muted);}
.page-h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.2;
  margin-bottom:14px;
}
.h1-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-left:12px;
  vertical-align:middle;
  padding:4px 12px;
  border-radius:var(--r-btn);
  background:var(--primary);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:0;
  transform:translateY(-4px);
}
.cat-lead{
  font-size:16.5px;
  color:var(--body);
  max-width:620px;
  margin-bottom:24px;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cat-hero-media{
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:#fff;
}
.cat-hero-media img{
  width:100%;
  height:clamp(240px,32vw,340px);
  object-fit:cover;
}
.mini-stats{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.mini-stat strong{
  display:block;
  font-size:24px;
  line-height:1.2;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.mini-stat span{font-size:13px;color:var(--muted);}

/* ============ 板块通用 ============ */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px);}
.sec-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.28;
  margin:12px 0 14px;
}
.sec-head p{font-size:16px;color:var(--body);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 对比版式 ============ */
.compare{
  border:1px solid var(--line);
  border-radius:var(--r-block);
  background:#fff;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cmp-head,
.cmp-row{
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr;
}
.cmp-head > div{
  padding:18px 24px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:600;
  font-size:15px;
}
.cmp-head .cmp-featured{
  background:var(--primary-soft-2);
  position:relative;
}
.cmp-head .cmp-featured::after{
  content:"热门选择";
  position:absolute;
  top:14px;right:18px;
  font-size:11.5px;
  padding:2px 9px;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-weight:600;
}
.cmp-row > div{
  padding:18px 24px;
  border-top:1px solid var(--line);
  font-size:15px;
}
.cmp-row:hover > div{background:#FAFCFD;}
.cmp-row .cmp-label{
  color:var(--ink);
  font-weight:600;
  display:flex;
  align-items:center;
  gap:9px;
}
.cmp-row .cmp-label i{color:var(--primary-l2);font-size:14px;}
.cmp-val{
  display:flex;
  align-items:flex-start;
  gap:8px;
  color:var(--body);
}
.cmp-val i{font-size:13px;margin-top:6px;color:var(--ok);}
.cmp-val.is-muted{color:var(--muted);}
.cmp-val.is-muted i{color:#B9C8D1;}
.cmp-val.is-strong{color:var(--primary);font-weight:600;}
.cmp-val.is-strong i{color:var(--accent);}
.cmp-val[data-col]::before{content:none;}
.compare-note{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--muted);
}
.compare-note span{display:inline-flex;align-items:center;gap:7px;}
.compare-note i{color:var(--primary-l2);}

/* ============ 活动卡片 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);}
.card-icon{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  border:1px solid rgba(14,74,102,.12);
  font-size:17px;
  margin-bottom:16px;
}
.card h3{font-size:19px;line-height:1.4;margin-bottom:10px;}
.card p{font-size:15px;color:var(--body);margin-bottom:14px;}
.card-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  color:var(--primary);
  background:var(--primary-soft);
  padding:4px 10px;
  border-radius:var(--r-btn);
  margin-bottom:14px;
  font-weight:600;
}

/* ============ 深色面板 ============ */
.dark-panel{
  background:var(--primary);
  border-radius:var(--r-block);
  padding:clamp(28px,4vw,48px);
  color:rgba(255,255,255,.86);
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:clamp(24px,4vw,48px);
  align-items:center;
}
.dark-panel h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3;margin:12px 0 14px;}
.dark-panel p{font-size:15.5px;color:rgba(255,255,255,.78);}
.dark-panel .eyebrow{color:#8FC4D8;}
.dark-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.dark-stat{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);
  padding:18px;
}
.dark-stat strong{
  display:block;
  font-size:26px;
  color:#fff;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.dark-stat strong em{color:var(--accent);font-style:normal;font-size:16px;margin-left:2px;}
.dark-stat span{font-size:13px;color:rgba(255,255,255,.72);}

/* ============ 步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
  counter-reset:step;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px 22px;
  box-shadow:var(--shadow);
}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step h3{font-size:17.5px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--body);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line) !important;
  border-radius:var(--r-card) !important;
  background:#fff;
  overflow:hidden;
  margin-bottom:14px;
  box-shadow:var(--shadow);
}
.accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:18px 22px;
  box-shadow:none !important;
  border-radius:var(--r-card) !important;
}
.accordion-button:not(.collapsed){
  background:var(--primary-soft);
  color:var(--primary);
}
.accordion-button::after{
  content:"+";
  background-image:none;
  width:32px;height:32px;
  line-height:30px;
  text-align:center;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:20px;
  font-weight:600;
  transform:none;
  transition:transform .2s ease,background .2s ease,color .2s ease;
  flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.accordion-body{
  padding:4px 22px 22px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* ============ 相关入口 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.entry{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:rgba(14,74,102,.22);}
.entry h3{font-size:17px;margin-bottom:6px;}
.entry p{font-size:13.8px;color:var(--muted);margin:0;}
.entry i{color:var(--primary);font-size:16px;flex:0 0 auto;transition:transform .18s ease;}
.entry:hover i{transform:translateX(4px);}

/* ============ CTA 条 ============ */
.cta-bar{
  background:var(--primary-soft);
  border:1px solid rgba(14,74,102,.12);
  border-radius:var(--r-block);
  padding:clamp(28px,3.6vw,44px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(21px,2.2vw,28px);line-height:1.35;margin-bottom:8px;}
.cta-bar p{font-size:15px;color:var(--body);margin:0;}

/* ============ 页脚 ============ */
.site-foot{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:clamp(48px,5vw,72px) 0 0;
  margin-top:var(--sec);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:clamp(24px,3vw,44px);
}
.foot-brand .brand{font-size:18px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:320px;}
.foot-col h4{
  font-size:15px;
  color:var(--ink);
  margin-bottom:16px;
  font-weight:600;
}
.foot-col a,.foot-col span{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:11px;
  line-height:1.6;
}
.foot-col a:hover{color:var(--primary);text-decoration:underline;}
.foot-bottom{
  margin-top:clamp(32px,4vw,52px);
  padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links a{padding:0 10px;font-size:14px;}
  .cat-hero-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero{margin-top:-84px;padding-top:140px;}
  .cat-hero-grid{grid-template-columns:1fr;}
  .cat-hero-media{order:-1;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dark-panel{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .cmp-head{display:none;}
  .cmp-row{grid-template-columns:1fr;}
  .cmp-row > div{padding:12px 20px;}
  .cmp-row .cmp-label{
    background:var(--primary-soft);
    color:var(--primary);
    padding:14px 20px 8px;
    border-top:1px solid var(--line);
  }
  .cmp-val[data-col]::before{
    content:attr(data-col);
    display:inline-block;
    min-width:74px;
    font-size:13px;
    font-weight:600;
    color:var(--primary);
  }
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .dark-stats{grid-template-columns:1fr 1fr;}
  .cat-hero-media img{height:240px;}
}
@media (max-width:575.98px){
  body{font-size:15px;line-height:1.75;}
  .capsule{padding:0 10px 0 14px;height:60px;}
  .cat-hero{padding-top:132px;}
  .cat-hero-actions .btn{width:100%;}
  .mini-stats{gap:18px;}
  .dark-stats{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .cta-bar .btn{width:100%;}
  .sec-head p{font-size:15px;}
}

/* roulang page: category5 */
:root{
  --brand:#0E4A66;
  --brand-dark:#0B3B52;
  --brand-2:#1E7A9E;
  --brand-3:#3E9AB8;
  --accent:#E07A3F;
  --bg:#F5F9FB;
  --bg-alt:#EEF5F8;
  --card:#FFFFFF;
  --line:#DCE7ED;
  --ink:#10222C;
  --text:#48585F;
  --muted:#7A8890;
  --tint:#EAF3F7;
  --ok:#2E8B6B;
  --warn:#C0503A;
  --r-card:14px;
  --r-lg:20px;
  --r-input:10px;
  --r-img:12px;
  --sh:0 1px 2px rgba(16,34,44,.04), 0 12px 28px -12px rgba(14,74,102,.16);
  --sh-hover:0 18px 36px -14px rgba(14,74,102,.28);
  --sec:clamp(64px,8vw,112px);
  --ease:180ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0 0 .55em;color:var(--ink);font-weight:700;line-height:1.28;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(14,74,102,.28);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

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

/* ============ 导航 ============ */
.site-head{position:sticky;top:16px;z-index:1035;padding-top:18px;}
.capsule{
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:8px 10px 8px 16px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(14,74,102,.10);
  border-radius:999px;
  box-shadow:var(--sh);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-head.is-scrolled .capsule{background:rgba(255,255,255,.97);box-shadow:var(--sh-hover);}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;white-space:nowrap;letter-spacing:-.01em;}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;flex:0 0 34px;
  background:var(--brand);color:#fff;font-size:14px;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand-text{display:inline-flex;align-items:baseline;gap:2px;}
.brand-text span{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  display:inline-flex;align-items:center;min-height:44px;
  padding:8px 12px;border-radius:999px;
  font-size:14px;color:var(--text);white-space:nowrap;
}
.nav-links a:hover{background:var(--bg-alt);color:var(--brand);}
.nav-links a.active{background:var(--tint);color:var(--brand);font-weight:600;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;flex:0 0 44px;margin-left:auto;
  border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--brand);
  place-items:center;font-size:17px;transition:var(--ease);
}
.nav-toggle:hover{background:var(--tint);}
.nav-drawer{
  margin-top:10px;padding:12px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh);
}
.nav-drawer a{
  display:flex;align-items:center;min-height:46px;padding:8px 14px;
  font-size:15px;color:var(--text);border-bottom:1px solid var(--line);border-radius:10px;
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.active{color:var(--brand);background:var(--tint);font-weight:600;}
.nav-drawer a:hover{color:var(--brand);background:var(--bg-alt);}
.drawer-cta{margin-top:10px;width:100%;justify-content:center;border-bottom:0;}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-border-radius:999px;
  border-radius:999px;font-size:15px;font-weight:600;
  padding:12px 24px;border-width:1.5px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,74,102,.25);}
.btn-primary{
  --bs-btn-bg:var(--brand);--bs-btn-border-color:var(--brand);
  --bs-btn-hover-bg:var(--brand-dark);--bs-btn-hover-border-color:var(--brand-dark);
  --bs-btn-active-bg:var(--brand-dark);--bs-btn-active-border-color:var(--brand-dark);
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;--bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--brand);--bs-btn-disabled-border-color:var(--brand);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(14,74,102,.55);}
.btn-outline-primary{
  --bs-btn-color:var(--brand);--bs-btn-border-color:var(--brand);
  --bs-btn-hover-bg:var(--tint);--bs-btn-hover-color:var(--brand);--bs-btn-hover-border-color:var(--brand);
  --bs-btn-active-bg:var(--tint);--bs-btn-active-color:var(--brand);--bs-btn-active-border-color:var(--brand);
}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-ghost{background:#fff;border:1.5px solid var(--line);color:var(--brand);}
.btn-ghost:hover{background:var(--tint);border-color:var(--brand);color:var(--brand);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);}
.link-arrow i{transition:transform var(--ease);font-size:12px;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}
.btn-soft{background:var(--tint);color:var(--brand);border:1px solid transparent;}
.btn-soft:hover{background:var(--brand);color:#fff;}

/* ============ 页面头部 ============ */
.page-head{
  position:relative;
  margin-top:22px;
  padding:44px 0 56px;
  background-image:linear-gradient(rgba(255,255,255,.90),rgba(255,255,255,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px;}
.crumbs a{color:var(--brand);}
.crumbs a:hover{text-decoration:underline;}
.crumbs i{font-size:10px;color:#B6C6CF;}
.crumbs .cur{color:var(--muted);}
.head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,56px);align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--brand);
  background:var(--tint);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.lede{font-size:16.5px;line-height:1.85;color:var(--text);max-width:56ch;margin-bottom:26px;}
.head-visual{position:relative;}
.head-visual img{
  width:100%;height:100%;max-height:340px;object-fit:cover;
  border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh);
}
.head-visual .float-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;font-size:13px;font-weight:600;color:var(--brand);box-shadow:var(--sh);
}
.stats-strip{display:flex;flex-wrap:wrap;gap:12px 34px;padding-top:22px;border-top:1px solid var(--line);}
.stat-item{min-width:96px;}
.stat-item b{display:block;font-size:24px;font-weight:700;color:var(--ink);line-height:1.2;}
.stat-item span{font-size:13px;color:var(--muted);}

/* ============ 板块 ============ */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px);}
.sec-head p{color:var(--muted);margin:0;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 主题卡 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.topic-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh);transition:var(--ease);
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.topic-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--tint);color:var(--brand);font-size:19px;border:1px solid rgba(14,74,102,.12);margin-bottom:16px;
}
.topic-card h3{font-size:18px;margin-bottom:8px;}
.topic-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.topic-card .link-arrow{margin-top:auto;}

/* ============ 图文说明 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,56px);align-items:center;}
.split.rev .split-text{order:1;}
.split-img img{width:100%;height:320px;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh);}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);}
.check-list i{color:var(--brand-2);font-size:15px;margin-top:5px;flex:0 0 auto;}
.quote-line{border-left:3px solid var(--brand);padding:4px 0 4px 16px;color:var(--ink);font-size:16px;line-height:1.8;}

/* ============ 帮助中心双栏 ============ */
.help-layout{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:32px;align-items:start;}
.faq-group{margin-bottom:32px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.group-head span{
  width:34px;height:34px;flex:0 0 34px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:14px;
}
.group-head h3{margin:0;font-size:19px;}
.accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  position:relative;display:block;width:100%;text-align:left;
  padding:18px 56px 18px 20px;
  font-size:17px;font-weight:600;color:var(--ink);
  background:#fff;border:0;border-radius:var(--r-card);
  box-shadow:none !important;
  transition:background var(--ease),color var(--ease);
}
.accordion-button::before{
  content:"+";
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;
  background:var(--tint);color:var(--brand);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--tint);}
.accordion-button:not(.collapsed)::before{content:"–";background:var(--brand);color:#fff;transform:translateY(-50%) rotate(45deg);}
.accordion-button:hover{background:var(--bg-alt);}
.accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text);background:#fff;}
.accordion-button:not(.collapsed)+.accordion-collapse .accordion-body{background:var(--tint);}
.accordion-body p:last-child{margin-bottom:0;}

/* ============ 侧栏 ============ */
.side{position:sticky;top:96px;display:grid;gap:16px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh);}
.side-card h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h4 i{color:var(--brand-2);font-size:14px;}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;font-size:14.5px;color:var(--text);border-bottom:1px dashed var(--line);
}
.anchor-list a:last-child{border-bottom:0;}
.anchor-list a:hover{color:var(--brand);}
.anchor-list a i{font-size:11px;color:var(--brand-3);}
.side-meta{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.side-meta li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted);}
.side-meta b{color:var(--ink);font-weight:600;}
.side-card.dark{background:#0B2A3A;border-color:#0B2A3A;color:#C9DCE6;}
.side-card.dark h4{color:#fff;}
.side-card.dark p{font-size:14px;color:#B4CBD7;margin-bottom:16px;}

/* ============ 深色面板 ============ */
.panel-dark{
  background:#0B2A3A;color:#CFE1EA;border-radius:var(--r-lg);
  padding:clamp(28px,4vw,52px);
}
.panel-dark h2,.panel-dark h3{color:#fff;}
.panel-dark .eyebrow{background:rgba(224,122,63,.16);color:#F0A473;}
.panel-dark p{color:#B7CDD9;}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,52px);align-items:start;}
.dark-list{list-style:none;padding:0;margin:0;display:grid;gap:0;}
.dark-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;font-size:15px;color:#D6E6EE;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.dark-list li:last-child{border-bottom:0;}
.dark-list i{color:var(--accent);font-size:14px;margin-top:6px;flex:0 0 auto;}
.dark-note{
  margin-top:20px;padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:14px;color:#C9DCE6;
}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh);transition:var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.step b{
  display:block;font-size:26px;font-weight:700;color:var(--brand-3);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ CTA ============ */
.cta-band{
  background:var(--tint);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:8px;}
.cta-band p{margin:0;color:var(--muted);font-size:15.5px;}

/* ============ 相关入口 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.rel-card{
  display:flex;align-items:center;gap:14px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);padding:20px;
  box-shadow:var(--sh);transition:var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);color:var(--brand);}
.rel-card i{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;background:var(--tint);color:var(--brand);font-size:16px;}
.rel-card strong{display:block;color:var(--ink);font-size:15.5px;font-weight:600;}
.rel-card small{color:var(--muted);font-size:13px;}

/* ============ 页脚 ============ */
.site-foot{background:var(--bg-alt);border-top:1px solid var(--line);padding:56px 0 0;margin-top:var(--sec);}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px;}
.foot-brand strong{font-size:17px;color:var(--ink);font-weight:700;}
.foot-brand strong span{color:var(--brand);}
.foot-col p{font-size:14px;color:var(--muted);max-width:34ch;margin:0;}
.foot-col h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;}
.foot-col a:hover{color:var(--brand);}
.foot-col .contact-line{display:flex;gap:10px;font-size:14px;color:var(--muted);padding:5px 0;}
.foot-col .contact-line i{color:var(--brand-3);width:16px;margin-top:5px;}
.foot-bottom{
  margin-top:40px;border-top:1px solid var(--line);padding:18px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .nav-cta{display:none;}
  .help-layout{grid-template-columns:1fr;}
  .side{position:static;grid-template-columns:1fr 1fr;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1200px){
  .nav-drawer{display:none !important;}
}
@media (max-width:991.98px){
  .head-grid{grid-template-columns:1fr;}
  .head-visual{order:-1;}
  .head-visual img{max-height:260px;}
  .split{grid-template-columns:1fr;}
  .split.rev .split-text{order:0;}
  .split-img img{height:260px;}
  .panel-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .rel-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .side{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  body{font-size:15px;line-height:1.75;}
  .site-head{top:10px;}
  .capsule{padding:8px 8px 8px 14px;}
  .brand-text{font-size:16px;}
  .page-head{padding:32px 0 40px;}
  .topic-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .btn{width:100%;justify-content:center;}
  .cta-band .btn,.nav-cta,.drawer-cta{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .stats-strip{gap:14px 24px;}
  .stat-item b{font-size:21px;}
}
@media (max-width:520px){
  .head-visual img,.split-img img{max-height:220px;}
  h1{font-size:30px;}
  .accordion-button{font-size:16px;padding:16px 52px 16px 16px;}
  .accordion-body{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}