/* roulang page: index */
:root{
  --brand:#0E5FD9;
  --brand-dark:#0A46A8;
  --brand-soft:#E8F0FE;
  --accent:#12B3A6;
  --warm:#FF8A2B;
  --text:#1E2A3A;
  --text-2:#5B6B82;
  --text-3:#8A99AE;
  --line:#E3E9F2;
  --line-2:#EEF2F8;
  --bg:#F5F8FD;
  --ok:#16A34A;
  --warn:#E5A200;
  --err:#E5484D;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 2px rgba(16,38,73,.06),0 8px 24px -12px rgba(16,38,73,.18);
  --shadow-card-hover:0 12px 32px -12px rgba(16,38,73,.24);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.8;color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;letter-spacing:0;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
p{margin:0;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line-2);
  transition:box-shadow .2s ease;
}
.topbar.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,38,73,.32);}
.topbar-inner{
  display:flex;align-items:center;gap:20px;height:70px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,#3C86F0 100%);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;box-shadow:0 8px 18px -10px rgba(14,95,217,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:0;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:1.5px;}
.search-box{
  flex:1;max-width:340px;position:relative;display:flex;align-items:center;
}
.search-box svg{
  position:absolute;left:14px;width:17px;height:17px;color:var(--text-3);pointer-events:none;
}
.search-box input{
  width:100%;height:42px;border-radius:999px;padding:0 18px 0 40px;
  border:1px solid var(--line);background:var(--bg);color:var(--text);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(14,95,217,.18);
}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px -10px rgba(14,95,217,.6);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 22px -10px rgba(14,95,217,.55);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px -8px rgba(14,95,217,.6);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(14,95,217,.35);
}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;
  transition:gap .18s ease,color .18s ease;
}
.btn-link:hover{gap:10px;color:var(--brand-dark);}

/* ---------- 频道行 ---------- */
.channelbar{
  background:#fff;border-bottom:1px solid var(--line-2);
}
.channel-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;padding:10px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip-tab{
  flex-shrink:0;display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-2);background:transparent;
  border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip-tab:hover{background:var(--brand-soft);color:var(--brand-dark);}
.chip-tab.active{background:var(--brand);color:#fff;border-color:var(--brand);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.drawer{
  display:none;border-bottom:1px solid var(--line-2);background:#fff;
}
.drawer.open{display:block;}
.drawer-inner{padding:12px 0 18px;display:flex;flex-direction:column;gap:4px;}
.drawer a{
  padding:11px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:background .18s ease,color .18s ease;
}
.drawer a:hover,.drawer a.active{background:var(--brand-soft);color:var(--brand-dark);}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,var(--brand-soft) 0%,#FFFFFF 82%);
  padding:64px 0 72px;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--brand-dark);font-weight:600;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero h1{margin:18px 0 16px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:38px;
  padding-top:26px;border-top:1px solid rgba(14,95,217,.14);
}
.hero-stat b{display:block;font-size:30px;line-height:1.2;color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:13px;color:var(--text-2);}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:var(--radius-card);overflow:hidden;
  background:var(--brand-soft);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-card);
  border:1px solid var(--line-2);min-width:190px;
}
.hero-float small{display:block;font-size:12px;color:var(--text-3);}
.hero-float b{font-size:22px;color:var(--brand-dark);font-variant-numeric:tabular-nums;}
.hero-float b em{font-style:normal;font-size:13px;color:var(--accent);margin-left:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;
  margin-bottom:14px;letter-spacing:0;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--text-2);}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.head-split .section-head{margin-bottom:0;}

/* ---------- 功能分组 ---------- */
.feature-row{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.feature-row.rev{grid-template-columns:7fr 5fr;}
.feature-row + .feature-row{margin-top:64px;padding-top:64px;border-top:1px solid var(--line);}
.feature-intro h3{font-size:22px;margin-bottom:12px;}
.feature-intro p{font-size:15.5px;color:var(--text-2);}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.mini-card{
  background:#fff;border:1px solid var(--line-2);border-radius:14px;
  padding:20px;box-shadow:0 1px 2px rgba(16,38,73,.04);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--line);}
.mini-icon{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.mini-card h4{font-size:16px;color:var(--text);margin-bottom:6px;}
.mini-card p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- 场景图文 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.scene + .scene{margin-top:72px;}
.scene.reverse .scene-media{order:2;}
.scene-media{border-radius:var(--radius-card);overflow:hidden;background:var(--brand-soft);box-shadow:var(--shadow-card);aspect-ratio:16/11;}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;
}
.scene h3{font-size:23px;margin-bottom:14px;}
.scene p{font-size:15.5px;color:var(--text-2);margin-bottom:18px;}
.dot-list li{
  position:relative;padding-left:22px;margin-bottom:10px;font-size:15px;color:var(--text-2);
}
.dot-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--accent);opacity:.85;
}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line-2);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.card-thumb{aspect-ratio:16/10;background:var(--brand-soft);overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;}
.card-body p{font-size:14.5px;color:var(--text-2);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.card-link{position:absolute;inset:0;z-index:1;}
.card-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:600;width:fit-content;
}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{
  background:#fff;border:1px solid var(--line-2);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.case-card .quote{font-size:15.5px;color:var(--text);line-height:1.75;margin-bottom:16px;}
.case-metrics{display:flex;gap:28px;margin-bottom:16px;}
.case-metrics b{display:block;font-size:26px;color:var(--brand-dark);font-weight:700;font-variant-numeric:tabular-nums;}
.case-metrics span{font-size:12.5px;color:var(--text-3);}
.case-foot{display:flex;gap:8px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--line-2);}
.tag-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);color:var(--text-2);font-size:12px;
}
.tag-ok{background:rgba(18,179,166,.1);border-color:rgba(18,179,166,.24);color:#0B8C82;}

/* ---------- CMS 列表空态 ---------- */
.content-empty{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;
  padding:52px 24px;text-align:center;
}
.content-empty svg{width:44px;height:44px;color:var(--text-3);margin:0 auto 14px;}
.content-empty p{font-size:15px;color:var(--text-2);margin-bottom:18px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.price-card.featured{border:2px solid var(--brand);transform:scale(1.02);}
.price-card.featured:hover{transform:scale(1.02) translateY(-2px);}
.price-badge{
  position:absolute;top:-13px;left:26px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--warm);color:#fff;font-size:12px;font-weight:600;
}
.price-card h3{font-size:18px;margin-bottom:6px;}
.price-desc{font-size:13.5px;color:var(--text-3);margin-bottom:18px;}
.price-value{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.price-value b{font-size:38px;line-height:1;color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;}
.price-value span{font-size:13.5px;color:var(--text-3);}
.price-list{margin:20px 0 26px;display:flex;flex-direction:column;gap:11px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.6;}
.price-list svg{flex-shrink:0;width:17px;height:17px;margin-top:4px;color:var(--accent);}
.price-note{font-size:13.5px;color:var(--text-3);margin-top:26px;text-align:center;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line-2);border-radius:14px;
  box-shadow:0 1px 2px rgba(16,38,73,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:14px;
  padding:18px 22px;cursor:pointer;min-height:64px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.faq-item summary h3{font-size:16px;font-weight:500;color:var(--text);flex:1;line-height:1.6;}
.faq-plus{
  width:20px;height:20px;flex-shrink:0;color:var(--text-3);position:relative;
  transition:transform .2s ease,color .2s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-plus::before{left:0;top:9px;width:20px;height:2px;}
.faq-plus::after{top:0;left:9px;width:2px;height:20px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--brand);}
.faq-a{padding:0 22px 22px 64px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--brand) 0%,#1F7BEA 100%);
  border-radius:20px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 48px -28px rgba(14,95,217,.6);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,24px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap;}
.btn-white{background:#fff;color:var(--brand-dark);}
.btn-white:hover{background:#EEF4FF;transform:translateY(-1px);}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-outline-white:hover{background:rgba(255,255,255,.14);border-color:#fff;}

/* ---------- 联系表单 ---------- */
.contact-card{
  background:#fff;border:1px solid var(--line-2);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;color:var(--text);font-weight:500;}
.form-field input,.form-field select,.form-field textarea{
  height:46px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg);padding:0 14px;color:var(--text);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.form-field textarea{height:auto;min-height:118px;padding:12px 14px;resize:vertical;line-height:1.7;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,95,217,.18);
}
.form-hint{font-size:13px;color:var(--text-3);}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1B33;color:rgba(255,255,255,.72);margin-top:0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand) 0%,#4B93F5 100%);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.45);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:16px 0 18px;max-width:340px;}
.footer-contact{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  margin-top:52px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .search-box{max-width:230px;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;max-width:620px;}
  .hero-float{left:auto;right:14px;bottom:-18px;}
  .section{padding:64px 0;}
  .feature-row,.feature-row.rev{grid-template-columns:1fr;gap:28px;}
  .feature-row + .feature-row{margin-top:44px;padding-top:44px;}
  .scene,.scene.reverse{grid-template-columns:1fr;gap:28px;}
  .scene.reverse .scene-media{order:0;}
  .scene + .scene{margin-top:48px;}
  .card-grid,.case-grid,.price-grid{grid-template-columns:repeat(2,1fr);}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-2px);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .search-box{display:none;}
  .top-actions .btn-ghost{display:none;}
  .menu-toggle{display:flex;}
  .channelbar{display:none;}
  .hero-stats{gap:26px;}
  .form-grid{grid-template-columns:1fr;}
  .faq-a{padding-left:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  .card-grid,.case-grid,.price-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .brand-sub{display:none;}
  .hero-stat b{font-size:26px;}
  .cta-band{padding:30px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}

/* roulang page: article */
:root{
  --brand:#0E5FD9;
  --brand-dark:#0A46A8;
  --brand-soft:#E8F0FE;
  --accent:#12B3A6;
  --warm:#FF8A2B;
  --text:#1E2A3A;
  --text-2:#5B6B82;
  --text-3:#8A99AE;
  --line:#E3E9F2;
  --line-2:#EEF2F8;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --err:#E5484D;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(16,38,73,.06),0 8px 24px -12px rgba(16,38,73,.18);
  --shadow-lg:0 12px 32px -12px rgba(16,38,73,.24);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text);}
h1,h2,h3,h4{color:var(--text);margin:0;}
p{margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);box-shadow:0 10px 20px -10px rgba(14,95,217,.5);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(0);}
.btn-white{background:#fff;color:var(--brand);}
.btn-white:hover{background:#F2F7FF;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,input:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,95,217,.35);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-2);box-shadow:0 1px 0 rgba(16,38,73,.02);}
.header-main{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:0;}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.4px;}
.header-search{position:relative;flex:1 1 auto;max-width:340px;margin-left:8px;}
.header-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-3);pointer-events:none;}
.header-search input{
  width:100%;height:42px;padding:0 16px 0 40px;border-radius:999px;
  border:1px solid var(--line);background:#F7FAFF;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.header-search input::placeholder{color:var(--text-3);}
.header-search input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,95,217,.15);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;color:var(--text);
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);}

/* ---------- 频道行 ---------- */
.channelbar{background:#fff;border-bottom:1px solid var(--line-2);}
.channel-scroll{
  display:flex;align-items:center;gap:8px;overflow-x:auto;
  padding-top:10px;padding-bottom:10px;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip-tab{
  flex:none;display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:999px;font-size:14px;font-weight:500;color:var(--text-2);
  transition:background-color .2s ease,color .2s ease;
}
.chip-tab:hover{background:var(--brand-soft);color:var(--brand);}
.chip-tab.active{background:var(--brand);color:#fff;}
.chip-tab.active:hover{background:var(--brand-dark);color:#fff;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line);padding:16px 0 22px;}
.mobile-drawer.is-open{display:block;}
.drawer-search{position:relative;margin-bottom:16px;}
.drawer-search input{width:100%;height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#F7FAFF;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{padding:12px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line-2);}
.drawer-links a:hover{color:var(--brand);}
.drawer-foot{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.8;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);margin:26px 0 18px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;padding-bottom:24px;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:40px 44px 44px;
}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.32;font-weight:700;
  color:var(--text);margin:16px 0 18px;letter-spacing:.2px;
}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600;}
.pill-brand{background:var(--brand-soft);color:var(--brand);}
.pill-accent{background:#E4F7F5;color:#0E8F85;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--text-3);
  padding-bottom:22px;border-bottom:1px solid var(--line-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.article-body{max-width:800px;margin-top:28px;font-size:16.5px;line-height:1.9;color:var(--text-2);}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.35;font-weight:600;color:var(--text);
  margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--text);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:22px 0 10px;}
.article-body ul{list-style:disc;padding-left:22px;margin:0 0 18px;}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 18px;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{
  background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;
  padding:16px 20px;margin:24px 0;color:var(--text);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(14,95,217,.35);transition:color .2s ease,border-color .2s ease;}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.article-body code{background:#F1F5FB;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-dark);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th{background:var(--brand-soft);color:var(--text);font-weight:600;text-align:left;padding:12px 14px;}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line-2);}
.article-body > :first-child{margin-top:0;}

.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:14px;background:#FAFCFF;
}
.empty-state .icon{
  width:56px;height:56px;border-radius:16px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin:0 auto 18px;font-size:22px;font-weight:700;
}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:22px;}

/* ---------- 标签与互动 ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line-2);
}
.article-tags .label{font-size:13.5px;color:var(--text-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:#F4F7FC;color:var(--text-2);font-size:13px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);}
.article-tools{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:14px;}
.article-tools button{
  background:none;border:none;padding:0;color:var(--text-2);cursor:pointer;font-size:14px;
  display:inline-flex;align-items:center;gap:6px;transition:color .2s ease;
}
.article-tools button:hover{color:var(--brand);}

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.post-nav a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-nav a:hover{border-color:var(--brand);box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.post-nav .label{font-size:12.5px;color:var(--text-3);}
.post-nav .title{
  margin-top:6px;font-size:15px;font-weight:600;color:var(--text);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.post-nav .next{text-align:right;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--text);margin-bottom:12px;
}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);padding:9px 0;
  border-bottom:1px dashed var(--line-2);transition:color .2s ease,padding-left .2s ease;
}
.toc-list a:last-child{border-bottom:none;}
.toc-list a:hover{color:var(--brand);padding-left:6px;}
.hot-list a{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);
  padding:10px 0;border-bottom:1px solid var(--line-2);transition:color .2s ease;
}
.hot-list a:last-child{border-bottom:none;}
.hot-list a:hover{color:var(--brand);}
.hot-list .idx{
  flex:none;width:20px;height:20px;border-radius:6px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px;
}
.hot-list a:nth-child(-n+3) .idx{background:var(--brand);color:#fff;}
.side-cta{background:var(--brand);border:none;color:#fff;}
.side-cta h3{color:#fff;}
.side-cta h3::before{background:rgba(255,255,255,.75);}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.86);margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-note{font-size:13px;color:var(--text-2);line-height:1.85;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:56px 0 8px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{font-size:clamp(21px,2.4vw,28px);font-weight:600;line-height:1.35;}
.section-head .more{font-size:14px;color:var(--brand);transition:color .2s ease;}
.section-head .more:hover{color:var(--brand-dark);text-decoration:underline;}
.content-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.card-media{aspect-ratio:16/10;background:var(--brand-soft);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.card:hover .card-title{color:var(--brand);}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line-2);font-size:13px;color:var(--text-3);
}
.card-foot .arrow{color:var(--brand);transition:transform .2s ease;}
.card:hover .card-foot .arrow{transform:translateX(3px);}
.back-row{margin-top:28px;text-align:center;}

/* ---------- 底部 CTA ---------- */
.cta-strip{
  background:var(--brand-soft);border:1px solid #D8E6FE;border-radius:20px;
  padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  margin:56px 0 72px;
}
.cta-strip h2{font-size:clamp(19px,2.2vw,24px);font-weight:600;margin-bottom:8px;}
.cta-strip p{font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;gap:12px;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1B33;color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.45);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:18px 0 16px;max-width:340px;}
.footer-contact div{font-size:13.5px;margin-bottom:6px;color:rgba(255,255,255,.6);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .side-col{position:static;top:auto;}
  .content-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .header-search{max-width:220px;}
}
@media (max-width:768px){
  .header-main{height:64px;gap:14px;}
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .article-card{padding:26px 22px 30px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .cta-actions{flex-wrap:wrap;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .next{text-align:left;}
  .breadcrumb .current{max-width:220px;}
}
@media (max-width:560px){
  .container{padding:0 20px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{display:none;}
  .header-actions .btn-secondary{display:none;}
  .header-actions .btn{padding:0 16px;font-size:14px;}
  .content-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .article-body{font-size:16px;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
    --brand:#0E5FD9;
    --brand-dark:#0A46A8;
    --brand-soft:#E8F0FE;
    --accent:#12B3A6;
    --warm:#FF8A2B;
    --text:#1E2A3A;
    --text-2:#5B6B82;
    --text-3:#8A99AE;
    --line:#E3E9F2;
    --line-2:#EEF2F8;
    --bg:#F5F8FD;
    --card:#FFFFFF;
    --ok:#16A34A;
    --err:#E5484D;
    --radius-card:16px;
    --radius-btn:12px;
    --shadow-1:0 1px 2px rgba(16,38,73,.06),0 8px 24px -12px rgba(16,38,73,.18);
    --shadow-2:0 12px 32px -12px rgba(16,38,73,.24);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--bg);
    color:var(--text-2);
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
  }
  h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;letter-spacing:.2px}
  p{margin:0}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
  img{display:block;max-width:100%}
  ul{margin:0;padding:0;list-style:none}
  button,input,select,textarea{font:inherit;color:inherit}
  :focus-visible{outline:3px solid rgba(14,95,217,.35);outline-offset:2px;border-radius:8px}
  .container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-2);box-shadow:0 1px 0 rgba(16,38,73,.02)}
  .header-top{display:flex;align-items:center;gap:24px;min-height:70px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand) 0%,#2F86F6 100%);color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;letter-spacing:0}
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px}
  .brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.6px}
  .search-box{position:relative;flex:1 1 auto;max-width:340px}
  .search-box i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:14px;pointer-events:none}
  .search-box input{width:100%;height:42px;border-radius:999px;border:1px solid var(--line);background:#F7FAFF;padding:0 18px 0 42px;font-size:14px;color:var(--text);outline:none;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
  .search-box input::placeholder{color:var(--text-3)}
  .search-box input:hover{border-color:#CFDCF0}
  .search-box input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,95,217,.15)}
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
  .menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
  .menu-toggle:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}

  .channelbar{background:#fff;border-top:1px solid var(--line-2)}
  .channel-scroll{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:12px;scrollbar-width:none;-ms-overflow-style:none}
  .channel-scroll::-webkit-scrollbar{display:none}
  .chip-tab{flex:0 0 auto;padding:8px 20px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-2);background:#F4F7FD;border:1px solid transparent;white-space:nowrap}
  .chip-tab:hover{background:var(--brand-soft);color:var(--brand)}
  .chip-tab.active{background:var(--brand);color:#fff;font-weight:600;box-shadow:0 8px 18px -10px rgba(14,95,217,.6)}
  .chip-tab.active:hover{background:var(--brand-dark);color:#fff}

  /* ---------- buttons ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:all .2s ease}
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-dark);box-shadow:0 10px 20px -10px rgba(14,95,217,.5);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-secondary{background:#fff;border-color:var(--line);color:var(--brand)}
  .btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand)}
  .btn-light{background:#fff;color:var(--brand)}
  .btn-light:hover{background:#F0F6FF;box-shadow:0 10px 22px -12px rgba(4,26,60,.5);transform:translateY(-1px)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

  /* ---------- banner ---------- */
  .page-banner{position:relative;overflow:hidden;background:var(--brand-dark)}
  .banner-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center 28%;background-color:#0A46A8}
  .banner-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,54,130,.95) 0%,rgba(14,95,217,.86) 52%,rgba(14,95,217,.66) 100%)}
  .banner-inner{position:relative;z-index:2;padding-top:28px;padding-bottom:104px}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px}
  .breadcrumb a{color:rgba(255,255,255,.88)}
  .breadcrumb a:hover{color:#fff;text-decoration:underline}
  .breadcrumb .current{color:rgba(255,255,255,.62)}
  .banner-inner h1{color:#fff;font-size:clamp(30px,3.6vw,48px);line-height:1.25;font-weight:700;max-width:820px}
  .banner-sub{margin-top:18px;max-width:700px;color:rgba(255,255,255,.9);font-size:16px;line-height:1.85}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .banner-tag{font-size:13px;color:#fff;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:5px 14px;backdrop-filter:none}
  .banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

  /* ---------- stats ---------- */
  .stat-strip{position:relative;z-index:3;margin-top:-56px}
  .stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);display:grid;grid-template-columns:repeat(4,1fr);padding:26px 8px}
  .stat-item{text-align:center;padding:0 18px;border-right:1px solid var(--line-2)}
  .stat-item:last-child{border-right:0}
  .stat-num{font-size:38px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
  .stat-num small{font-size:15px;font-weight:600;margin-left:2px}
  .stat-label{font-size:13px;color:var(--text-3);margin-top:6px}

  /* ---------- section ---------- */
  .section{padding:88px 0}
  .section.alt{background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
  .section-head{max-width:740px;margin-bottom:40px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px}
  .section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
  .section-head p{margin-top:14px;font-size:16px;color:var(--text-2)}

  /* ---------- service layout ---------- */
  .service-layout{display:grid;grid-template-columns:240px 1fr;gap:34px;align-items:start}
  .filter-card{position:sticky;top:136px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:20px}
  .filter-title{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.6px;margin-bottom:12px}
  .filter-nav{display:block}
  .filter-link{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2)}
  .filter-link i{font-size:11px;color:var(--text-3);opacity:0;transition:opacity .2s ease}
  .filter-link:hover{background:var(--brand-soft);color:var(--brand)}
  .filter-link:hover i{opacity:1}
  .filter-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
  .filter-link.active i{opacity:1;color:var(--brand)}
  .filter-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--line-2);font-size:13px;color:var(--text-3);line-height:1.7}
  .filter-foot a{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-weight:600;color:var(--brand);font-size:13.5px}
  .filter-foot a:hover{color:var(--brand-dark)}

  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .s-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
  .s-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E2F5}
  .s-card-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
  .s-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
  .s-card:hover .s-card-media img{transform:scale(1.03)}
  .s-card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
  .s-card-body h3{font-size:18px;line-height:1.45}
  .s-card-body p{font-size:14.5px;line-height:1.75;color:var(--text-2)}
  .tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
  .tag{font-size:12px;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 10px;line-height:1.6}
  .tag.accent{color:#0B7F76;background:#E1F7F4}
  .card-link{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:12px;font-size:14px;font-weight:600;color:var(--brand)}
  .card-link i{font-size:12px;transition:transform .2s ease}
  .card-link:hover{color:var(--brand-dark)}
  .card-link:hover i{transform:translateX(3px)}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:24px;transition:transform .2s ease,box-shadow .2s ease}
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .step-num{width:32px;height:32px;border-radius:10px;background:var(--brand);color:#fff;font-size:14px;font-weight:700;display:grid;place-items:center;margin-bottom:16px;font-variant-numeric:tabular-nums}
  .step h3{font-size:17px;margin-bottom:8px}
  .step p{font-size:14.5px;color:var(--text-2)}
  .step-line{position:absolute;top:40px;right:-14px;width:28px;height:2px;background:var(--line);}

  /* ---------- scene ---------- */
  .scene-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
  .scene-row + .scene-row{margin-top:64px}
  .scene-row.reverse .scene-text{order:2}
  .scene-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);aspect-ratio:16/10;background:var(--brand-soft)}
  .scene-media img{width:100%;height:100%;object-fit:cover}
  .scene-text h3{font-size:22px;margin-bottom:12px}
  .scene-text > p{font-size:15.5px;color:var(--text-2)}
  .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
  .chip{font-size:12.5px;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 13px;font-weight:600}
  .point-list{margin-top:18px}
  .point-list li{position:relative;padding-left:24px;margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8}
  .point-list li::before{content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;background:#fff;border:2.5px solid var(--brand)}
  .point-list li:first-child{margin-top:0}

  /* ---------- faq ---------- */
  .faq-list{display:grid;gap:12px;max-width:920px}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
  .faq-item:hover{border-color:#D6E2F5;box-shadow:var(--shadow-2)}
  .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:19px 22px;font-size:16px;font-weight:500;color:var(--text)}
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::marker{content:""}
  .q-mark{flex:0 0 28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:700}
  .faq-plus{margin-left:auto;color:var(--brand);font-size:15px;line-height:1;transition:transform .2s ease}
  .faq-item[open] .faq-plus{transform:rotate(45deg)}
  .faq-a{padding:0 22px 22px 64px;font-size:15px;line-height:1.85;color:var(--text-2)}

  /* ---------- cta ---------- */
  .cta-band{background:var(--brand-soft);border:1px solid #D2E1FB;border-radius:20px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
  .cta-band h2{font-size:clamp(20px,2.2vw,24px);line-height:1.4}
  .cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}

  /* ---------- footer ---------- */
  .site-footer{margin-top:24px;background:#0B1B33;color:#93A4BD;padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
  .footer-brand .brand-name{color:#fff}
  .footer-brand .brand-sub{color:#6D7F9B}
  .footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:#93A4BD;max-width:340px}
  .footer-contact{margin-top:16px;font-size:14px;color:#93A4BD}
  .footer-contact b{color:#DCE6F5;font-weight:600}
  .footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
  .footer-col a{display:block;font-size:14px;color:#93A4BD;padding:6px 0}
  .footer-col a:hover{color:#fff}
  .footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8CA6}

  /* ---------- drawer ---------- */
  .drawer{position:fixed;inset:0;z-index:120;display:none}
  .drawer.open{display:block}
  .drawer-mask{position:absolute;inset:0;background:rgba(11,27,51,.55)}
  .drawer-panel{position:absolute;top:0;right:0;bottom:0;width:84%;max-width:330px;background:#fff;padding:22px;overflow-y:auto;box-shadow:-16px 0 40px -20px rgba(11,27,51,.5)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-2)}
  .drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--text-2)}
  .drawer-close:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand)}
  .drawer-links{margin-top:16px;display:grid;gap:6px}
  .drawer-links a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text-2)}
  .drawer-links a:hover{background:var(--brand-soft);color:var(--brand)}
  .drawer-links a.active{background:var(--brand);color:#fff;font-weight:600}
  .drawer-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line-2);font-size:13px;color:var(--text-3);line-height:1.9}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .service-layout{grid-template-columns:1fr;gap:24px}
    .filter-card{position:static;padding:16px}
    .filter-title{display:none}
    .filter-nav{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
    .filter-nav::-webkit-scrollbar{display:none}
    .filter-link{flex:0 0 auto;padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:14px;white-space:nowrap}
    .filter-link i{display:none}
    .filter-foot{display:none}
    .card-grid{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
    .step-line{display:none}
    .scene-row{grid-template-columns:1fr;gap:28px}
    .scene-row + .scene-row{margin-top:52px}
    .scene-row.reverse .scene-text{order:0}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .header-top{gap:14px;min-height:64px}
    .search-box{display:none}
    .menu-toggle{display:inline-flex}
    .section{padding:60px 0}
    .banner-inner{padding-bottom:88px}
    .stat-strip{margin-top:-48px}
    .stat-card{grid-template-columns:repeat(2,1fr);gap:22px 0;padding:24px 8px}
    .stat-item:nth-child(2n){border-right:0}
    .stat-item:nth-child(-n+2){padding-bottom:20px;border-bottom:1px solid var(--line-2)}
    .stat-num{font-size:32px}
    .cta-band{padding:28px}
    .faq-a{padding-left:22px}
    .footer-grid{gap:26px}
  }
  @media (max-width:640px){
    .card-grid{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .header-actions .hide-sm{display:none}
    .brand-sub{display:none}
    .footer-grid{grid-template-columns:1fr}
    .footer-brand .footer-about{max-width:none}
    .banner-actions .btn{flex:1 1 auto}
    .section-head{margin-bottom:28px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    .s-card:hover,.step:hover{transform:none}
  }

/* roulang page: category2 */
:root{
    --brand:#0E5FD9;
    --brand-dark:#0A46A8;
    --brand-soft:#E8F0FE;
    --accent:#12B3A6;
    --warm:#FF8A2B;
    --text:#1E2A3A;
    --text-2:#5B6B82;
    --text-3:#8A99AE;
    --line:#E3E9F2;
    --line-2:#EEF2F8;
    --bg:#F5F8FD;
    --card:#FFFFFF;
    --ok:#16A34A;
    --err:#E5484D;
    --deep:#0B1B33;
    --r-card:16px;
    --r-btn:12px;
    --r-pill:999px;
    --r-input:10px;
    --shadow-card:0 1px 2px rgba(16,38,73,.06),0 8px 24px -12px rgba(16,38,73,.18);
    --shadow-hover:0 12px 32px -12px rgba(16,38,73,.24);
    --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.8;
    color:var(--text-2);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4{color:var(--text);margin:0;letter-spacing:.2px;}
  h1{font-size:44px;line-height:1.25;font-weight:700;}
  h2{font-size:34px;line-height:1.3;font-weight:600;}
  h3{font-size:20px;line-height:1.45;font-weight:600;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:3px solid rgba(14,95,217,.35);outline-offset:2px;border-radius:6px;}

  .container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
  .num{font-variant-numeric:tabular-nums;}

  /* ============ 顶部品牌行 ============ */
  .topbar{
    position:sticky;top:0;z-index:60;background:#fff;
    border-bottom:1px solid var(--line-2);
    transition:box-shadow .2s ease;
  }
  .topbar.scrolled{box-shadow:0 6px 20px -14px rgba(16,38,73,.4);}
  .topbar-inner{display:flex;align-items:center;gap:18px;height:70px;justify-content:space-between;}
  .brand{display:inline-flex;align-items:center;gap:10px;}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;flex:0 0 auto;
    background:linear-gradient(135deg,#0E5FD9,#2E7BE8);
    color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-name{font-size:17px;font-weight:700;color:var(--text);}
  .brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.5px;}

  .search-box{position:relative;flex:0 1 330px;min-width:180px;}
  .search-box svg{
    position:absolute;left:14px;top:50%;transform:translateY(-50%);
    width:16px;height:16px;color:var(--text-3);pointer-events:none;
  }
  .search-box input{
    width:100%;height:42px;border-radius:var(--r-pill);
    border:1px solid var(--line);background:#F7F9FD;
    padding:0 18px 0 40px;font-size:14px;color:var(--text);
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .search-box input::placeholder{color:var(--text-3);}
  .search-box input:hover{border-color:#CFDAEA;}
  .search-box input:focus{
    outline:none;background:#fff;border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(14,95,217,.16);
  }
  .topbar-actions{display:flex;align-items:center;gap:10px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;white-space:nowrap;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px -10px rgba(14,95,217,.7);}
  .btn-primary:hover{background:var(--brand-dark);box-shadow:0 10px 20px -10px rgba(14,95,217,.5);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(1px);box-shadow:none;}
  .btn-secondary{background:#fff;color:var(--brand);border-color:var(--line);}
  .btn-secondary:hover{background:var(--brand-soft);border-color:#BFD5F6;color:var(--brand-dark);}
  .btn-secondary:active{transform:translateY(1px);}
  .btn-light{background:#fff;color:var(--brand-dark);border-color:#fff;}
  .btn-light:hover{background:#EAF1FD;transform:translateY(-1px);}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
  .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  .menu-btn{
    display:none;width:42px;height:42px;border-radius:12px;
    border:1px solid var(--line);background:#fff;cursor:pointer;
    align-items:center;justify-content:center;
  }
  .menu-btn:hover{background:var(--brand-soft);border-color:#BFD5F6;}
  .menu-btn svg{width:20px;height:20px;color:var(--text);}

  /* ============ 频道行 ============ */
  .channelbar{
    position:sticky;top:70px;z-index:55;background:#fff;
    border-bottom:1px solid var(--line-2);
  }
  .channel-scroll{
    display:flex;gap:8px;align-items:center;
    padding-top:12px;padding-bottom:12px;
    overflow-x:auto;scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .channel-scroll::-webkit-scrollbar{display:none;}
  .chip-tab{
    flex:0 0 auto;padding:8px 18px;border-radius:var(--r-pill);
    font-size:14px;font-weight:500;color:var(--text-2);
    border:1px solid transparent;background:transparent;
  }
  .chip-tab:hover{background:var(--brand-soft);color:var(--brand-dark);}
  .chip-tab.active{
    background:var(--brand);color:#fff;
    box-shadow:0 8px 18px -10px rgba(14,95,217,.8);
  }

  /* ============ 移动抽屉 ============ */
  .mobile-drawer{
    display:none;background:#fff;border-bottom:1px solid var(--line);
    padding:8px 0 18px;
  }
  .mobile-drawer.open{display:block;}
  .drawer-inner{display:flex;flex-direction:column;gap:6px;}
  .drawer-inner a{
    padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
    border:1px solid transparent;
  }
  .drawer-inner a:hover{background:var(--brand-soft);color:var(--brand-dark);}
  .drawer-meta{
    margin-top:12px;padding:14px;border-radius:12px;background:var(--bg);
    font-size:13px;color:var(--text-3);line-height:1.9;
  }

  /* ============ Banner ============ */
  .page-banner{
    position:relative;color:#fff;
    background-image:linear-gradient(120deg,rgba(10,70,168,.86),rgba(14,95,217,.62)),url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center 28%;
    padding:72px 0 64px;
  }
  .page-banner h1{color:#fff;max-width:820px;}
  .banner-lead{
    margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);max-width:760px;
  }
  .crumbs{
    display:flex;flex-wrap:wrap;gap:8px;align-items:center;
    font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px;
  }
  .crumbs a{color:rgba(255,255,255,.86);}
  .crumbs a:hover{color:#fff;text-decoration:underline;}
  .crumbs .sep{opacity:.55;}
  .crumbs .current{color:rgba(255,255,255,.62);}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .banner-tag{
    padding:6px 14px;border-radius:var(--r-pill);font-size:13px;
    background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
    color:#fff;
  }

  /* ============ 通用板块 ============ */
  section{position:relative;}
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:44px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 14px;border-radius:var(--r-pill);
    background:var(--brand-soft);color:var(--brand-dark);
    font-size:13px;font-weight:600;margin-bottom:16px;
  }
  .section-head h2{margin-bottom:14px;}
  .section-head p{font-size:16px;line-height:1.85;color:var(--text-2);}

  /* ============ 概览数据条 ============ */
  .overview{
    background:#fff;border-bottom:1px solid var(--line-2);
  }
  .overview-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    padding:36px 0;
  }
  .ov-item{padding:0 4px;border-left:2px solid var(--line-2);padding-left:18px;}
  .ov-num{font-size:34px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;}
  .ov-num small{font-size:15px;color:var(--text-3);margin-left:4px;font-weight:500;}
  .ov-label{font-size:14px;color:var(--text-2);margin-top:6px;}

  /* ============ 场景大卡 ============ */
  .scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .scene-card{
    display:grid;grid-template-columns:40% 1fr;
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6E2F5;}
  .scene-media{
    position:relative;background:var(--brand-soft);overflow:hidden;min-height:100%;
  }
  .scene-media img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .3s ease;
  }
  .scene-card:hover .scene-media img{transform:scale(1.03);}
  .scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
  .scene-body h3{font-size:19px;}
  .scene-fit{
    font-size:13px;color:var(--text-3);
  }
  .scene-fit b{color:var(--text-2);font-weight:600;}
  .point-list{display:flex;flex-direction:column;gap:8px;}
  .point-list li{
    position:relative;padding-left:18px;
    font-size:14px;line-height:1.75;color:var(--text-2);
  }
  .point-list li::before{
    content:"";position:absolute;left:0;top:10px;
    width:6px;height:6px;border-radius:50%;background:var(--brand);
  }
  .scene-link{
    margin-top:auto;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--brand);
  }
  .scene-link svg{width:14px;height:14px;transition:transform .2s ease;}
  .scene-link:hover{color:var(--brand-dark);}
  .scene-link:hover svg{transform:translateX(3px);}

  /* ============ 流程 ============ */
  .flow-wrap{background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);}
  .flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
  .flow-item{
    position:relative;padding:26px 22px;border-radius:var(--r-card);
    background:var(--bg);border:1px solid var(--line-2);
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .flow-item:hover{background:#fff;box-shadow:var(--shadow-card);transform:translateY(-2px);}
  .flow-step{
    display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;
    background:var(--brand-soft);color:var(--brand-dark);
    font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;margin-bottom:14px;
  }
  .flow-item h3{font-size:17px;margin-bottom:8px;}
  .flow-item p{font-size:14px;line-height:1.8;color:var(--text-2);}

  /* ============ 适配建议 ============ */
  .fit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
  .fit-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px 24px;box-shadow:var(--shadow-card);
    display:flex;flex-direction:column;gap:14px;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .fit-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
  .fit-card.featured{
    border:2px solid var(--brand);
    box-shadow:0 14px 34px -16px rgba(14,95,217,.45);
  }
  .fit-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
  .fit-name{font-size:18px;font-weight:600;color:var(--text);}
  .badge-warm{
    padding:4px 11px;border-radius:var(--r-pill);background:var(--warm);color:#fff;
    font-size:12px;font-weight:600;white-space:nowrap;
  }
  .fit-scale{font-size:13px;color:var(--text-3);}
  .fit-card ul{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
  .fit-card ul li{
    position:relative;padding-left:24px;font-size:14px;line-height:1.75;color:var(--text-2);
  }
  .fit-card ul li::before{
    content:"";position:absolute;left:0;top:6px;width:15px;height:15px;border-radius:50%;
    background:var(--brand-soft);
    background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E5FD9' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
    background-size:11px 11px;background-position:center;background-repeat:no-repeat;
  }

  /* ============ 客户声音（深色区） ============ */
  .voices{background:var(--deep);color:#C9D6E8;}
  .voices h2,.voices h3{color:#fff;}
  .voices .section-head p{color:#9DB0CB;}
  .voices .eyebrow{background:rgba(255,255,255,.12);color:#BFD5F6;}
  .voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .voice-card{
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-card);padding:26px 24px;
    transition:background-color .2s ease,transform .2s ease,border-color .2s ease;
  }
  .voice-card:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);transform:translateY(-2px);}
  .voice-quote{font-size:16px;line-height:1.85;color:#E6EEFA;margin-bottom:18px;}
  .voice-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:#9DB0CB;}
  .voice-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);}

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item[open]{border-color:#C9DCF8;box-shadow:var(--shadow-hover);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;gap:14px;
    padding:20px 22px;min-height:64px;
    font-size:16px;font-weight:500;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-q{
    width:26px;height:26px;flex:0 0 auto;border-radius:50%;
    background:var(--brand-soft);color:var(--brand-dark);
    display:grid;place-items:center;font-size:13px;font-weight:700;
  }
  .faq-item summary .faq-title{flex:1;}
  .faq-icon{
    width:18px;height:18px;flex:0 0 auto;color:var(--brand);
    transition:transform .2s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);}
  .faq-answer{padding:0 22px 22px 62px;font-size:15px;line-height:1.85;color:var(--text-2);}
  .faq-item summary:hover{background:#FBFCFE;}

  /* ============ CTA 条 ============ */
  .cta-card{
    background:var(--brand-soft);
    border:1px solid #D5E4FB;
    border-radius:20px;
    padding:44px 44px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    box-shadow:0 1px 2px rgba(16,38,73,.05),0 18px 40px -24px rgba(16,38,73,.35);
  }
  .cta-card h2{font-size:26px;margin-bottom:10px;}
  .cta-card p{font-size:15px;color:var(--text-2);max-width:640px;}
  .cta-actions{display:flex;gap:12px;flex:0 0 auto;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:#9DB0CB;padding:64px 0 28px;margin-top:0;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
    padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
  }
  .footer-brand .brand-name{color:#fff;}
  .footer-brand .brand-sub{color:#7E93B0;}
  .footer-about{font-size:14px;line-height:1.9;color:#9DB0CB;margin-top:18px;max-width:340px;}
  .footer-contact{margin-top:16px;font-size:13px;line-height:2;color:#8AA0BE;}
  .footer-contact b{color:#D6E3F5;font-weight:600;}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
  .footer-col a{
    display:block;font-size:14px;color:#9DB0CB;padding:6px 0;
  }
  .footer-col a:hover{color:#fff;}
  .footer-bottom{
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding-top:22px;font-size:13px;color:#7E93B0;
  }

  /* ============ 入场动效 ============ */
  .reveal{opacity:0;transform:translateY(14px);transition:opacity .45s ease,transform .45s ease;}
  .reveal.visible{opacity:1;transform:none;}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    h1{font-size:36px;}
    h2{font-size:28px;}
    .section{padding:68px 0;}
    .search-box{display:none;}
    .menu-btn{display:inline-flex;}
    .topbar-actions .btn-secondary{display:none;}
    .overview-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
    .scene-grid{grid-template-columns:1fr;}
    .flow-grid{grid-template-columns:repeat(2,1fr);}
    .fit-grid{grid-template-columns:1fr;}
    .voice-grid{grid-template-columns:1fr;}
    .cta-card{flex-direction:column;align-items:flex-start;padding:34px 28px;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:640px){
    .container{padding:0 20px;}
    h1{font-size:28px;}
    h2{font-size:23px;}
    .section{padding:56px 0;}
    .section-head{margin-bottom:30px;}
    .topbar-inner{height:64px;}
    .channelbar{top:64px;}
    .brand-name{font-size:15px;}
    .brand-sub{font-size:10px;}
    .topbar-actions .btn{padding:0 16px;height:40px;font-size:14px;}
    .page-banner{padding:52px 0 46px;}
    .banner-lead{font-size:15px;}
    .overview-grid{grid-template-columns:1fr;gap:20px;padding:28px 0;}
    .ov-item{border-left:none;border-top:2px solid var(--line-2);padding:14px 0 0;}
    .scene-card{grid-template-columns:1fr;}
    .scene-media{height:186px;min-height:0;}
    .flow-grid{grid-template-columns:1fr;}
    .faq-answer{padding-left:22px;}
    .faq-item summary{padding:16px;gap:10px;font-size:15px;}
    .cta-card{padding:28px 20px;border-radius:16px;}
    .cta-card h2{font-size:21px;}
    .cta-actions{flex-direction:column;width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:8px;}
  }

/* roulang page: category3 */
:root{
  --brand:#0E5FD9;
  --brand-dark:#0A46A8;
  --brand-soft:#E8F0FE;
  --accent:#12B3A6;
  --warm:#FF8A2B;
  --text:#1E2A3A;
  --text-2:#5B6B82;
  --text-3:#8A99AE;
  --line:#E3E9F2;
  --line-2:#EEF2F8;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#E5A200;
  --err:#E5484D;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,38,73,.06), 0 8px 24px -12px rgba(16,38,73,.18);
  --shadow-hover:0 12px 32px -12px rgba(16,38,73,.24);
  --shadow-btn:0 10px 20px -10px rgba(14,95,217,.5);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,95,217,.35);border-radius:8px;}

.container{width:100%;max-width:1200px!important;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-2);}
.brand-row{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:700;font-size:18px;letter-spacing:0;}
.brand-text{display:block;line-height:1.25;}
.brand-name{display:block;font-weight:700;font-size:17px;color:var(--text);letter-spacing:0;}
.brand-sub{display:block;font-size:11px;color:var(--text-3);letter-spacing:.3px;}
.search-box{
  position:relative;display:flex;align-items:center;gap:8px;
  height:42px;max-width:340px;flex:1 1 240px;
  padding:0 16px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(14,95,217,.15);}
.search-box svg{flex:0 0 auto;color:var(--text-3);}
.search-box input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:var(--text-3);}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:border-color .2s ease,background .2s ease;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:transform .2s ease,opacity .2s ease;}
.menu-toggle:hover{border-color:var(--brand);background:var(--brand-soft);}
.menu-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle.active span:nth-child(2){opacity:0;}
.menu-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channelbar{border-top:1px solid var(--line-2);background:#fff;}
.channel-scroll{
  max-width:1200px;margin:0 auto;padding:10px 24px;
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip-tab{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.chip-tab:hover{background:var(--brand-soft);color:var(--brand-dark);}
.chip-tab.active{background:var(--brand);color:#fff;font-weight:600;}
.chip-tab:active{transform:translateY(1px);}

.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line-2);box-shadow:0 18px 32px -18px rgba(16,38,73,.28);}
.mobile-drawer.open{display:block;}
.drawer-link{display:block;padding:14px 0;border-bottom:1px solid var(--line-2);font-size:15px;color:var(--text-2);}
.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-foot{padding:16px 0 22px;font-size:13px;color:var(--text-3);line-height:1.95;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-sm);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);box-shadow:var(--shadow-btn);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-primary:focus-visible{box-shadow:0 0 0 3px rgba(14,95,217,.35);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);}
.btn-outline:active{transform:translateY(1px);}
.btn-white{background:#fff;color:var(--brand);}
.btn-white:hover{background:#EAF2FF;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(9,32,70,.6);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(9,52,126,.88),rgba(14,95,217,.72)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center 28%;background-repeat:no-repeat;
  background-color:#0A46A8;
}
.banner-inner{position:relative;z-index:2;padding-top:46px;padding-bottom:62px;max-width:1200px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:rgba(255,255,255,.7);}
.banner-title{font-size:clamp(26px,3.6vw,44px);line-height:1.28;font-weight:700;letter-spacing:.2px;margin:0 0 16px;max-width:820px;}
.banner-desc{font-size:16px;line-height:1.9;color:rgba(255,255,255,.9);max-width:760px;margin:0 0 26px;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.22);}
.banner-meta .m-item{font-size:13px;color:rgba(255,255,255,.78);}
.banner-meta .m-num{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.3;font-variant-numeric:tabular-nums;}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--radius-pill);background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;letter-spacing:.3px;}
.section-title{font-size:clamp(23px,2.8vw,34px);line-height:1.32;font-weight:600;margin:14px 0 12px;letter-spacing:0;}
.section-sub{font-size:16px;line-height:1.9;color:var(--text-2);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.text-link{color:var(--brand);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--brand-dark);text-decoration:underline;}

/* ---------- 支持渠道卡 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6E2F5;}
.channel-card{padding:28px 26px;display:flex;flex-direction:column;gap:14px;}
.channel-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);
}
.channel-card h3{font-size:19px;font-weight:600;line-height:1.45;}
.channel-card p{font-size:15px;line-height:1.85;color:var(--text-2);}
.channel-card .btn{align-self:flex-start;margin-top:6px;}

/* ---------- 主题标签 ---------- */
.topic-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.topic-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.topic-pill:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#C7DBFA;}
.topic-pill.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------- 帮助条目列表 ---------- */
.help-list{border-top:1px solid var(--line-2);}
.help-item{
  display:grid;grid-template-columns:180px 1fr;gap:24px;
  padding:24px 0;border-bottom:1px solid var(--line-2);
  align-items:flex-start;
}
.help-thumb{border-radius:12px;overflow:hidden;background:var(--brand-soft);aspect-ratio:16/10;display:block;}
.help-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.help-item:hover .help-thumb img{transform:scale(1.03);}
.help-title{font-size:19px;font-weight:600;line-height:1.5;margin:10px 0 8px;}
.help-title a{color:var(--text);}
.help-title a:hover{color:var(--brand);}
.help-desc{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:12px;}
.help-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3);}
.help-meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD6E6;}
.help-meta .link-more{margin-left:auto;color:var(--brand);font-weight:600;}
.help-meta .link-more:hover{text-decoration:underline;}

.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.2px;}
.tag-brand{background:var(--brand-soft);color:var(--brand-dark);}
.tag-accent{background:rgba(18,179,166,.14);color:#0B857B;}
.tag-warm{background:var(--warm);color:#fff;}

/* ---------- 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:40px;}
.pager-item{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;
  color:var(--text-2);font-size:14px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.pager-item:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.pager-item.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.pager-item.is-disabled{opacity:.5;pointer-events:none;}
.pager-dots{display:inline-flex;align-items:center;padding:0 6px;color:var(--text-3);}

/* ---------- 处理流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-weight:700;font-size:16px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;box-shadow:0 1px 2px rgba(16,38,73,.04);
  overflow:hidden;
}
.faq-q{
  display:flex;align-items:center;gap:12px;
  padding:18px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:500;color:var(--text);line-height:1.6;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{background:#FBFCFE;}
.faq-badge{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.faq-plus{margin-left:auto;flex:0 0 auto;color:var(--text-3);transition:transform .2s ease,color .2s ease;font-size:18px;line-height:1;}
details[open] .faq-plus{transform:rotate(45deg);color:var(--brand);}
.faq-a{padding:0 20px 20px 58px;font-size:15px;line-height:1.85;color:var(--text-2);}
details[open] .faq-a{animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- 底部 CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,#E8F0FE 0%,#F7FAFF 100%);
  border:1px solid #D8E5FA;border-radius:20px;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 1px 2px rgba(16,38,73,.06),0 18px 40px -24px rgba(16,38,73,.3);
}
.cta-copy h2{font-size:clamp(21px,2.4vw,28px);font-weight:600;line-height:1.4;margin-bottom:10px;color:var(--text);}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1B33;color:#C6D2E3;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#8FA3BF;}
.site-footer .brand-mark{background:var(--brand);}
.footer-about{font-size:14px;line-height:1.9;color:#A9BBD3;margin:18px 0 16px;max-width:340px;}
.footer-contact div{font-size:14px;color:#A9BBD3;padding:3px 0;}
.footer-contact b{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:#A9BBD3;padding:6px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#8FA3BF;
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .search-box{display:none;}
  .brand-actions .btn-outline{display:none;}
  .menu-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px;}
  .channel-scroll{padding:10px 20px;}
  .brand-row{height:62px;gap:14px;}
  .brand-name{font-size:16px;}
  .banner-inner{padding-top:32px;padding-bottom:46px;}
  .banner-meta{gap:20px;}
  .help-item{grid-template-columns:140px 1fr;gap:18px;}
  .channel-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section{padding:56px 0;}
}
@media (max-width:520px){
  .help-item{grid-template-columns:1fr;gap:14px;}
  .help-thumb{aspect-ratio:16/9;}
  .help-meta .link-more{margin-left:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .banner-actions .btn{width:100%;}
  .faq-a{padding-left:20px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
}

.reveal{opacity:1;transform:none;}