/* roulang page: index */
:root{
  --primary:#1667D6;
  --primary-dark:#0E4EA8;
  --primary-soft:#E8F1FD;
  --accent:#F08A24;
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --surface-2:#FAFCFF;
  --ink:#131C29;
  --ink-2:#45536A;
  --ink-3:#7C8AA0;
  --line:#E2E9F3;
  --focus:rgba(22,103,214,.28);
  --footer:#0E1621;
  --ok:#1E9E6A;
  --warn:#D9822B;
  --err:#D94A4A;
  --empty:#9AA7B8;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,32,54,.05);
  --sh-md:0 2px 6px rgba(16,32,54,.05), 0 14px 30px -18px rgba(16,32,54,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,54,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -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}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:8px}
::selection{background:var(--primary-soft);color:var(--primary-dark)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:768px){.container{padding:0 18px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--footer);color:#C9D5E4;font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px}
.topbar__note{display:inline-flex;align-items:center;gap:8px}
.topbar__note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.topbar__contact{color:#93A4BB}
@media (max-width:768px){.topbar__contact{display:none}}

/* ---------- 导航 ---------- */
.nav-shell{position:sticky;top:0;z-index:40;padding:12px 0;background:var(--bg)}
.navbar{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-md);
  padding:12px 16px;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.navbar.is-stuck{box-shadow:var(--sh-lg);border-color:#D6E0EE}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;background:var(--primary-soft);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;color:var(--ink)}
.nav-panel{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0}
.nav-card{
  position:relative;
  display:flex;align-items:center;gap:9px;
  padding:8px 12px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  min-width:0;
}
.nav-card:hover{background:var(--primary-soft);border-color:#BFD8F6;transform:translateY(-2px)}
.nav-card:active{transform:translateY(1px)}
.nav-card.is-active{background:var(--primary-soft);border-color:var(--primary)}
.nav-card.is-active::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--primary);
}
.nav-card__icon{
  width:28px;height:28px;border-radius:8px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;flex:0 0 auto;
}
.nav-card.is-active .nav-card__icon{background:#fff}
.nav-card__t{font-size:14px;font-weight:600;line-height:1.3;white-space:nowrap}
.nav-card__d{font-size:12px;color:var(--ink-3);line-height:1.3;white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:var(--surface-2);cursor:pointer;place-items:center;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 24px;height:42px;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(22,103,214,.9)}
.btn--primary:hover{background:var(--primary-dark);box-shadow:0 14px 26px -14px rgba(14,78,168,.9)}
.btn--outline{background:#fff;color:var(--primary);border-color:#BBD5F5}
.btn--outline:hover{background:var(--primary-soft);border-color:var(--primary)}
.btn--ghost{background:transparent;color:var(--primary);padding:0;height:auto;font-weight:600}
.btn--ghost:hover{color:var(--primary-dark)}
.btn--ghost .arw{transition:transform .22s var(--ease)}
.btn--ghost:hover .arw{transform:translateX(4px)}
.btn--lg{height:48px;padding:0 28px;font-size:16px}
.btn--sm{height:34px;padding:0 16px;font-size:14px;border-radius:9px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{background:#C8D2E0;color:#fff;box-shadow:none;cursor:not-allowed;border-color:#C8D2E0}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--alt{background:var(--surface)}
.section--tight{padding-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head__main{max-width:720px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.kicker i{font-style:normal;color:var(--accent);font-variant-numeric:tabular-nums}
h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.4px}
h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px}
h3{font-size:21px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:720px}
.muted{color:var(--ink-3);font-size:14px}
.text-link{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--primary-dark)}
.text-link .arw{transition:transform .22s var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{padding:44px 0 32px}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{margin-bottom:18px}
.hero__lead{font-size:17px;color:var(--ink-2);max-width:620px;margin-bottom:28px}
.hero__actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.trust{display:flex;flex-wrap:wrap;gap:10px}
.trust li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;box-shadow:var(--sh-sm);
}
.trust li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);opacity:.85}
.hero__media{position:relative}
.hero__media img{
  width:100%;height:430px;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-lg);
}
.hero__media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);pointer-events:none;
  background:linear-gradient(205deg,rgba(255,255,255,.30) 0%,rgba(244,247,251,.62) 100%);
}
.float-card{
  position:absolute;left:-18px;bottom:26px;z-index:2;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-md);padding:14px 18px;
}
.float-card__num{
  width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
}
.float-card__t{font-size:14px;font-weight:600;line-height:1.35}
.float-card__d{font-size:12px;color:var(--ink-3);line-height:1.35}

/* ---------- 入口小卡 ---------- */
.entry-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.entry-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);padding:20px 18px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#C6DAF4}
.entry-card__icon{
  width:38px;height:38px;border-radius:11px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;
}
.entry-card h3{font-size:16px}
.entry-card p{font-size:13px;color:var(--ink-3);line-height:1.7;margin:0}

/* ---------- 服务区 7:5 ---------- */
.service-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.card--flush{padding:0;overflow:hidden}
.card__body{padding:24px}
.card__media{position:relative}
.card__media img{width:100%;height:260px;object-fit:cover}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  border-radius:999px;padding:4px 12px;line-height:1.5;
}
.badge--cat{background:var(--primary-soft);color:var(--primary-dark)}
.badge--gray{background:#EEF3FA;color:var(--ink-2)}
.badge--accent{background:var(--accent);color:#fff}
.service-main .card__body{padding:26px 28px 28px}
.service-main h3{margin:12px 0 10px}
.service-main p{color:var(--ink-2);font-size:15px;max-width:640px}
.mini-list{margin-top:20px;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.mini-list li::before{
  content:"";width:18px;height:18px;flex:0 0 auto;margin-top:5px;border-radius:6px;
  background:var(--primary-soft);
  background-image:linear-gradient(var(--primary),var(--primary));
  background-size:8px 2px;background-position:center;background-repeat:no-repeat;
}
.service-side{display:grid;gap:24px;grid-template-rows:1fr 1fr}
.service-side .card{display:flex;flex-direction:column;gap:8px}
.service-side .card h3{font-size:18px}
.service-side .card p{font-size:14px;color:var(--ink-3)}
.icon-sq{
  width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;flex:0 0 auto;
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);overflow:hidden;
}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat__num{font-size:34px;font-weight:700;color:var(--accent);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat__t{font-size:16px;font-weight:600;margin-top:6px}
.stat__d{font-size:13px;color:var(--ink-3);margin-top:4px}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-grid .scene-card--wide{grid-column:span 2}
.scene-card{display:flex;flex-direction:column}
.scene-card img{width:100%;height:200px;object-fit:cover;border-radius:var(--r-md)}
.scene-card--wide img{height:260px}
.scene-card h3{margin:14px 0 8px}
.scene-card p{font-size:14px;color:var(--ink-2)}
.meta-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
}

/* ---------- 方案区 ---------- */
.plan{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.plan + .plan{margin-top:72px}
.plan--reverse .plan__media{order:2}
.plan__media img{width:100%;height:340px;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-md)}
.plan__num{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px;font-variant-numeric:tabular-nums;
  display:block;margin-bottom:12px;
}
.plan h3{font-size:24px;margin-bottom:12px}
.plan p{color:var(--ink-2);font-size:15px;max-width:620px}
.plan__list{margin:20px 0 24px;display:grid;gap:10px}
.plan__list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.plan__list li::before{
  content:"";width:20px;height:20px;flex:0 0 auto;margin-top:5px;border-radius:50%;
  background:var(--primary-soft);
  background-image:linear-gradient(var(--primary),var(--primary));
  background-size:9px 2px;background-position:center;background-repeat:no-repeat;
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#C6DAF4}
.news-card__media img{width:100%;height:190px;object-fit:cover}
.news-card__inner{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-size:17px;line-height:1.5;font-weight:600;transition:color .2s var(--ease)}
.news-card:hover .news-card__title{color:var(--primary)}
.news-card__desc{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.news-card__more{color:var(--primary);font-weight:600}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed #CFDBEA;border-radius:var(--r-lg);
}
.empty-state__art{
  width:72px;height:72px;margin:0 auto 16px;border-radius:20px;background:#EEF3FA;
  display:grid;place-items:center;color:var(--empty);
}
.empty-state p{color:var(--ink-3);font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);overflow:hidden;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open{border-color:#C6DAF4;box-shadow:var(--sh-md)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 22px;font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);
}
.faq-q:hover{color:var(--primary-dark)}
.faq-q__sign{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;font-size:16px;line-height:1;transition:transform .22s var(--ease);
}
.faq-item.is-open .faq-q__sign{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a__inner{padding:0 22px 20px;font-size:15px;color:var(--ink-2);background:#FAFCFF}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface-2);padding:0 13px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:11px 13px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px var(--focus);
}
.field--full{grid-column:1/-1}
.field.is-error input,.field.is-error textarea,.field.is-error select{border-color:var(--err)}
.field__err{font-size:13px;color:var(--err);display:none}
.field.is-error .field__err{display:block}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px}
.form-ok{
  display:none;align-items:center;gap:10px;margin-top:16px;padding:12px 16px;
  background:#EAF7F1;border:1px solid #BEE6D4;border-radius:var(--r-btn);color:#12724C;font-size:14px;
}
.form-ok.is-show{display:flex}
.info-card{display:flex;flex-direction:column;gap:18px}
.info-row{display:flex;gap:12px;align-items:flex-start}
.info-row__t{font-size:14px;font-weight:600}
.info-row__d{font-size:14px;color:var(--ink-3)}
.info-card img{width:100%;height:170px;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line)}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--footer);color:#fff;border-radius:var(--r-lg);
  padding:38px 40px;box-shadow:var(--sh-lg);
}
.cta-band h3{color:#fff;font-size:24px;margin-bottom:8px}
.cta-band p{color:#A9B8CC;font-size:15px;margin:0}
.cta-band .btn--outline{background:transparent;color:#fff;border-color:#3A4A61}
.cta-band .btn--outline:hover{background:rgba(255,255,255,.08);border-color:#5C7089}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#9AA9BF;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__mark{
  width:36px;height:36px;border-radius:10px;background:rgba(22,103,214,.18);
  display:grid;place-items:center;
}
.footer-brand__text{color:#fff;font-size:17px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.85;color:#8C9CB4;margin:0}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#9AA9BF;transition:color .2s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  border-top:1px solid #1E2B3C;padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7B8CA4;
}
.footer-bottom a{color:#9AA9BF}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-card__d{display:none}
}
@media (max-width:1024px){
  .nav-toggle{display:grid}
  .nav-panel{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--sh-lg);padding:12px;z-index:45;
  }
  .nav-panel.is-open{display:flex}
  .nav-card{width:100%;padding:12px 14px}
  .nav-card__d{display:block;white-space:normal}
  .nav-actions .btn--sm{display:none}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__media img{height:340px}
  .service-grid{grid-template-columns:1fr}
  .service-side{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .scene-grid{grid-template-columns:1fr 1fr}
  .scene-grid .scene-card--wide{grid-column:span 2}
  .news-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .plan{grid-template-columns:1fr;gap:28px}
  .plan--reverse .plan__media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
  h1{font-size:34px}
  h2{font-size:26px}
}
@media (max-width:768px){
  .entry-bar{grid-template-columns:1fr 1fr;gap:14px}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .scene-grid{grid-template-columns:1fr}
  .scene-grid .scene-card--wide{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .service-side{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .plan__media img{height:260px}
  .hero__media img{height:280px}
  .float-card{left:12px;bottom:12px;padding:12px 14px}
  .cta-band{padding:28px 22px}
  .cta-band h3{font-size:20px}
  .section{padding:52px 0}
  .site-footer{margin-top:60px}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:18px}
  .section-head{margin-bottom:24px}
}
@media (max-width:520px){
  .entry-bar{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0 !important;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .brand__text{font-size:15px}
  body{font-size:15px}
}

/* roulang page: article */
:root{
  --blue:#1667D6;
  --blue-dark:#0E4EA8;
  --blue-soft:#E8F1FD;
  --amber:#F08A24;
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --surface-2:#FAFCFF;
  --ink:#131C29;
  --ink-2:#45536A;
  --ink-3:#7C8AA0;
  --line:#E2E9F3;
  --footer:#0E1621;
  --ok:#1E9E6A;
  --warn:#D9822B;
  --err:#D94A4A;
  --empty:#9AA7B8;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,32,54,.05);
  --sh-md:0 2px 6px rgba(16,32,54,.05), 0 14px 30px -18px rgba(16,32,54,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,54,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han 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(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--blue);text-decoration:none;}
a:hover{color:var(--blue-dark);}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(22,103,214,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--footer);color:#fff;height:36px;display:flex;align-items:center;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;font-size:13px;line-height:1;}
.topbar__note{color:#C9D6E6;}
.topbar__contact{color:#8FB6E8;font-variant-numeric:tabular-nums;}
@media (max-width:768px){.topbar__contact{display:none;}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;}
.nav-shell{padding:14px 0 0;}
.navbar{
  display:flex;align-items:center;gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-md);
  padding:12px 16px;
  transition:box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}
.navbar.is-stuck{box-shadow:var(--sh-lg);border-color:#D5E1F1;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--blue);}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:var(--blue-soft);
  display:flex;align-items:center;justify-content:center;border:1px solid #D3E4FA;
}
.brand__text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.nav-panel{display:flex;align-items:stretch;gap:10px;flex:1 1 auto;min-width:0;}
.nav-card{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:9px 14px 9px 12px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface-2);
  color:var(--ink);
  transition:transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease), background 220ms var(--ease);
  min-width:0;
}
.nav-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#CFE0F6;color:var(--ink);}
.nav-card:active{transform:translateY(0);}
.nav-card.is-active{background:var(--blue-soft);border-color:#B9D6F7;box-shadow:var(--sh-sm);}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--blue);
}
.nav-card__icon{
  width:30px;height:30px;flex:0 0 auto;border-radius:9px;background:var(--blue-soft);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
}
.nav-card__t{display:block;font-size:14px;font-weight:600;line-height:1.35;white-space:nowrap;}
.nav-card__d{display:block;font-size:12px;color:var(--ink-3);line-height:1.4;white-space:nowrap;}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface-2);
  border-radius:var(--r-btn);margin-left:auto;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--ink);border-radius:2px;content:"";transition:.22s var(--ease);
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background 220ms var(--ease), color 220ms var(--ease), box-shadow 220ms var(--ease), transform 160ms var(--ease), border-color 220ms var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 10px 20px -12px rgba(22,103,214,.65);}
.btn--primary:hover{background:var(--blue-dark);color:#fff;box-shadow:0 14px 26px -12px rgba(22,103,214,.72);}
.btn--secondary{background:#fff;color:var(--blue);border-color:#B9D6F7;}
.btn--secondary:hover{background:var(--blue-soft);color:var(--blue-dark);}
.btn--ghost{background:transparent;color:var(--blue);padding:0 4px;height:auto;}
.btn--ghost:hover{color:var(--blue-dark);text-decoration:underline;}
.btn--sm{height:34px;padding:0 16px;font-size:13px;}
.btn--lg{height:48px;padding:0 28px;}
.btn--amber{background:var(--amber);color:#fff;}
.btn--amber:hover{background:#D9761A;color:#fff;}
.btn[disabled],.btn.is-disabled{background:#C8D2E0;color:#fff;cursor:not-allowed;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--blue-soft);color:var(--blue-dark);
}
.badge--gray{background:#EEF3FA;color:var(--ink-2);}
.badge--amber{background:var(--amber);color:#fff;}

/* ============ 文章头部 ============ */
.article-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:34px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb .sep{color:#C3CEDD;}
.article-hero__main{max-width:880px;}
.article-hero h1{font-size:42px;line-height:1.25;font-weight:700;margin:14px 0 18px;letter-spacing:-.2px;}
.article-hero__sub{max-width:720px;color:var(--ink-2);font-size:16px;margin:0 0 20px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--ink-3);padding-bottom:26px;}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:#C7D3E2;}
.meta-row strong{color:var(--ink-2);font-weight:600;}
.article-cover{margin:0 0 -1px;border-radius:var(--r-lg) var(--r-lg) 0 0;overflow:hidden;border:1px solid var(--line);border-bottom:0;box-shadow:var(--sh-md);}
.article-cover img{width:100%;height:340px;object-fit:cover;}

/* ============ 版面结构 ============ */
main{display:block;padding:56px 0 88px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;
}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:40px 44px;
}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink);}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:30px;line-height:1.3;margin:42px 0 18px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:4px;width:3px;border-radius:3px;background:var(--blue);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:21px;line-height:1.4;font-weight:600;margin:32px 0 14px;}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body ul{margin:0 0 20px;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--blue);
}
.article-body ol{margin:0 0 20px;padding-left:22px;list-style:decimal;}
.article-body ol li{margin-bottom:10px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--blue-soft);border-left:3px solid var(--blue);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:22px 0 8px;width:100%;height:auto;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--blue-dark);}
.article-body table{
  width:100%;border-collapse:collapse;display:block;overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-md);margin:22px 0;font-size:15px;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--surface-2);font-weight:600;color:var(--ink-2);}
.article-body strong{font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

/* ============ 标签行 ============ */
.tag-row{max-width:760px;margin:34px auto 0;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row__label{font-size:13px;color:var(--ink-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:#EEF3FA;color:var(--ink-2);font-size:13px;transition:background 220ms var(--ease),color 220ms var(--ease);
}
.tag:hover{background:var(--blue-soft);color:var(--blue-dark);}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);padding:22px;
}
.aside-card__t{font-size:16px;font-weight:600;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.aside-link{display:block;font-size:14px;color:var(--ink-2);padding:8px 10px;border-radius:8px;transition:.2s var(--ease);}
.aside-link:hover{background:var(--surface-2);color:var(--blue);}
.aside-link.is-active{background:var(--blue-soft);color:var(--blue-dark);font-weight:600;box-shadow:inset 2px 0 0 var(--blue);}
.aside-list li{margin-bottom:8px;}
.aside-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--ink-2);padding:9px 12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface-2);transition:.22s var(--ease);}
.aside-list a:hover{border-color:#B9D6F7;color:var(--blue);transform:translateY(-2px);box-shadow:var(--sh-sm);}
.aside-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin:14px 0 0;}

/* ============ 相关推荐 ============ */
.block{margin-top:80px;}
.block__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.block__title{font-size:30px;line-height:1.3;}
.block__desc{color:var(--ink-2);font-size:15px;margin:8px 0 0;max-width:640px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-sm);overflow:hidden;
  transition:transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#D5E1F1;}
.card__media{aspect-ratio:16/9;overflow:hidden;background:#EEF3FA;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__title{font-size:17px;font-weight:600;line-height:1.5;}
.card:hover .card__title{color:var(--blue);}
.card__excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.card__meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-top:auto;padding-top:10px;border-top:1px solid var(--line);}
.card__meta .arrow{margin-left:auto;color:var(--blue);font-weight:600;}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:64px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);padding:34px 38px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;background-image:radial-gradient(#1667D6 1px, transparent 1px);
  background-size:18px 18px;opacity:.04;pointer-events:none;
}
.cta-band__txt{flex:1 1 380px;position:relative;z-index:1;}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--ink-2);font-size:15px;}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 空态 ============ */
.empty-state{
  background:var(--surface);border:1px dashed #CFDBEB;border-radius:var(--r-lg);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state__icon{
  width:64px;height:64px;border-radius:20px;background:var(--blue-soft);color:var(--blue);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);max-width:520px;margin:0 auto 22px;font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#AEBACB;margin-top:0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand__mark{width:34px;height:34px;border-radius:10px;background:rgba(127,179,240,.14);display:flex;align-items:center;justify-content:center;}
.footer-brand__text{color:#fff;font-size:18px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.8;color:#93A2B8;margin:0;max-width:360px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#AEBACB;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#7F8EA4;
}
.footer-bottom span{font-variant-numeric:tabular-nums;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{display:none;}
}
@media (max-width:1024px){
  .nav-shell{padding:12px 0 0;}
  .nav-toggle{display:block;}
  .nav-panel{
    position:fixed;inset:0;background:#fff;flex-direction:column;gap:12px;
    padding:88px 24px 32px;overflow-y:auto;z-index:80;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:.24s var(--ease);
    border-radius:0;
  }
  .nav-panel.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav-card{padding:14px 16px;}
  .nav-card__t{font-size:16px;}
  .nav-card__d{font-size:13px;}
  .nav-cta{display:none;}
  .article-hero h1{font-size:32px;}
  .article-cover img{height:260px;}
  .article-card{padding:32px 28px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  main{padding:40px 0 64px;}
  .article-hero{padding:24px 0 0;}
  .article-hero h1{font-size:28px;}
  .article-cover img{height:200px;}
  .article-card{padding:24px 20px;border-radius:var(--r-md);}
  .article-body h2{font-size:23px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .block{margin-top:56px;}
  .block__head{flex-direction:column;align-items:flex-start;}
  .block__title{font-size:23px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand__text{font-size:16px;}
  .btn{width:100%;}
  .btn--ghost{width:auto;}
  .cta-band__actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .article-cover{border-radius:var(--r-md) var(--r-md) 0 0;}
}

/* roulang page: category1 */
:root{
  --brand:#1667D6;
  --brand-dark:#0E4EA8;
  --brand-soft:#E8F1FD;
  --amber:#F08A24;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --card-2:#FAFCFF;
  --ink:#131C29;
  --ink-2:#45536A;
  --ink-3:#7C8AA0;
  --line:#E2E9F3;
  --focus:rgba(22,103,214,.28);
  --footer:#0E1621;
  --success:#1E9E6A;
  --warn:#D9822B;
  --error:#D94A4A;
  --empty:#9AA7B8;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,32,54,.05);
  --sh-md:0 2px 6px rgba(16,32,54,.05), 0 14px 30px -18px rgba(16,32,54,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,54,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink);}
h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.4px;}
h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:17px;font-weight:600;}
p{margin:0 0 16px;color:var(--ink-2);max-width:720px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--footer);color:#D6DFEC;font-size:13px;line-height:36px;height:36px;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar__note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__contact{color:#93A4BC;white-space:nowrap;}

/* ---------- 导航 ---------- */
.nav-shell{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0;
  background:linear-gradient(180deg,#F4F7FB 62%,rgba(244,247,251,.86));
  transition:padding .22s var(--ease);
}
.nav-shell.is-stuck{padding:8px 0 10px;}
.navbar{
  display:flex;
  align-items:center;
  gap:18px;
  padding:12px 16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-md);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.nav-shell.is-stuck .navbar{box-shadow:0 2px 6px rgba(16,32,54,.06),0 18px 34px -22px rgba(16,32,54,.26);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  border:1px solid #D5E5F9;
  border-radius:12px;
}
.brand__text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  margin-left:auto;
  align-items:center;justify-content:center;
  background:var(--card-2);
  border:1px solid var(--line);
  border-radius:10px;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:transform .22s var(--ease);
}
.nav-toggle span::before{content:"";position:absolute;top:-6px;left:0;}
.nav-toggle span::after{content:"";position:absolute;top:6px;left:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.nav-panel{display:flex;gap:8px;flex:1;align-items:center;min-width:0;}
.nav-card{
  display:flex;align-items:center;gap:10px;
  flex:1 1 0;
  min-width:0;
  padding:9px 12px;
  background:var(--card-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--ink);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .15s var(--ease),box-shadow .2s var(--ease);
}
.nav-card:hover{background:var(--brand-soft);border-color:#CFE1F8;color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-sm);}
.nav-card:active{transform:translateY(0);}
.nav-card.is-active{
  background:var(--brand-soft);
  border-color:rgba(22,103,214,.38);
  box-shadow:inset 2px 0 0 var(--brand);
}
.nav-card__icon{
  width:32px;height:32px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  border-radius:9px;
}
.nav-card.is-active .nav-card__icon{background:var(--brand);color:#fff;}
.nav-card__t{display:block;font-size:14px;font-weight:600;line-height:1.35;white-space:nowrap;}
.nav-card__d{display:block;font-size:12px;line-height:1.4;color:var(--ink-3);white-space:nowrap;}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-link{font-size:14px;color:var(--ink-2);white-space:nowrap;}
.nav-link:hover{color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .15s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -12px rgba(22,103,214,.9);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;box-shadow:0 12px 24px -12px rgba(14,78,168,.85);}
.btn--ghost{background:#fff;color:var(--brand);border-color:rgba(22,103,214,.45);}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn--plain{background:transparent;color:var(--brand);padding:0 4px;height:auto;}
.btn--plain:hover{color:var(--brand-dark);text-decoration:underline;}
.btn--sm{height:42px;padding:0 20px;font-size:14px;}
.btn--xs{height:34px;padding:0 16px;font-size:13px;}
.btn[disabled],.btn.is-disabled{background:#C8D2E0;color:#fff;cursor:not-allowed;box-shadow:none;border-color:transparent;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;
  border-radius:999px;
  font-size:13px;line-height:1.7;
  background:#EFF3F9;
  color:var(--ink-2);
}
.badge--blue{background:var(--brand-soft);color:var(--brand-dark);}
.badge--amber{background:var(--amber);color:#fff;}
.badge--plain{background:#F1F4F9;color:var(--ink-3);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 72px;
  background-image:linear-gradient(180deg,rgba(255,255,255,.92),rgba(244,247,251,.94)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(22,103,214,.05) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:#C3CEDD;}
.hero__tag{margin-bottom:16px;display:inline-flex;}
.hero__title{max-width:680px;}
.hero__sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:620px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero__facts{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:32px;}
.hero__facts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.hero__facts svg{flex-shrink:0;}
.hero__media{position:relative;}
.hero__figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-lg);
  background:#fff;
}
.hero__figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.float-card{
  position:absolute;
  left:-22px;bottom:-26px;
  width:224px;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-md);
}
.float-card__label{font-size:12px;color:var(--ink-3);}
.float-card__value{font-size:26px;font-weight:700;color:var(--amber);line-height:1.3;letter-spacing:.5px;}
.float-card__note{font-size:12px;color:var(--ink-3);line-height:1.6;margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--alt{background:var(--bg);}
.section--white{background:#fff;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section__head p{margin-top:12px;}
.section__eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:1px;margin-bottom:10px;
}
.section__link{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ---------- 主内容布局 ---------- */
.layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:36px;align-items:start;}
.side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
  padding:22px;
}
.panel__title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.panel__title::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--brand);}
.side-nav li+li{border-top:1px solid var(--line);}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 8px 11px 4px;
  font-size:14px;color:var(--ink-2);
  border-radius:8px;
  transition:background .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand-dark);padding-left:10px;}
.side-nav .num{font-size:12px;color:var(--ink-3);font-weight:600;width:22px;flex-shrink:0;}
.side-contact p{font-size:14px;line-height:1.75;}
.side-contact dl{margin:14px 0 16px;font-size:14px;}
.side-contact dt{color:var(--ink-3);font-size:12px;margin-top:10px;}
.side-contact dd{margin:2px 0 0;color:var(--ink);font-weight:600;}

/* ---------- 图文条目 ---------- */
.entry-list{display:flex;flex-direction:column;gap:22px;}
.entry{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:24px;
  padding:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  scroll-margin-top:104px;
}
.entry:hover{box-shadow:var(--sh-md);transform:translateY(-3px);border-color:#D5E2F3;}
.entry__media{border-radius:var(--r-md);overflow:hidden;background:var(--brand-soft);}
.entry__media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.entry__body h3{margin:12px 0 10px;}
.entry__body p{font-size:15px;line-height:1.85;}
.points{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.points li{position:relative;padding-left:24px;font-size:14px;line-height:1.75;color:var(--ink-2);}
.points li::before{
  content:"✓";
  position:absolute;left:0;top:1px;
  color:var(--brand);font-weight:700;font-size:13px;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-sm);
  overflow:hidden;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-md);}
.faq-item.is-open{border-color:#CFE1F8;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-dark);}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;
  position:relative;
  border-radius:999px;
  background:var(--brand-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);background:#FAFCFF;}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a__inner{padding:4px 20px 20px;border-top:1px solid var(--line);}
.faq-a__inner p{font-size:15px;line-height:1.85;margin-top:14px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--footer);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--sh-lg);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,138,36,.22),transparent 68%);
}
.cta-band__text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{color:#fff;font-size:26px;}
.cta-band p{color:#A9B8CC;margin-top:10px;font-size:15px;}
.cta-band__actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}
.btn--light{background:#fff;color:var(--brand-dark);}
.btn--light:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--outline:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;}

/* ---------- 联系区 ---------- */
.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:28px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  height:44px;padding:0 14px;
  background:var(--card-2);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--focus);
}
.field.has-error input,.field.has-error textarea{border-color:var(--error);}
.field.has-error .hint{color:var(--error);}
.hint{font-size:13px;color:var(--ink-3);}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px;}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:28px;
}
.info-card__media{border-radius:var(--r-md);overflow:hidden;margin-bottom:20px;}
.info-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.info-list li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;}
.info-list li:last-child{border-bottom:0;}
.info-list .k{color:var(--ink-3);}
.info-list .v{color:var(--ink);font-weight:600;text-align:right;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#9DAAC0;padding:64px 0 28px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand__mark{
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:11px;
}
.footer-brand__text{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{color:#8C9BB2;font-size:14px;line-height:1.8;max-width:380px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#9DAAC0;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  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:#7B8AA1;
}

/* ---------- 骨架 / 空态 ---------- */
.skeleton{
  background:linear-gradient(90deg,#EEF3FA 25%,#F7FAFE 37%,#EEF3FA 63%);
  background-size:400% 100%;
  animation:shine 1.4s ease infinite;
  border-radius:10px;
}
@keyframes shine{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
.empty{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty__icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
}
.empty p{color:var(--ink-3);margin-bottom:18px;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-card__d{display:none;}
  .nav-link{display:none;}
}
@media (max-width:1024px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-actions{margin-left:0;}
  .nav-panel{
    position:fixed;
    inset:0;
    z-index:70;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    padding:88px 20px 28px;
    background:#fff;
    overflow-y:auto;
    transform:translateX(103%);
    transition:transform .28s var(--ease);
    box-shadow:var(--sh-lg);
  }
  .nav-panel.is-open{transform:translateX(0);}
  .nav-card{flex:0 0 auto;padding:14px 16px;}
  .nav-card__t{font-size:15px;}
  .nav-card__d{display:block;}
  .hero__grid{grid-template-columns:1fr;gap:36px;}
  .hero__media{order:-1;}
  .float-card{left:auto;right:12px;bottom:-18px;width:200px;}
  .layout{grid-template-columns:1fr;}
  .side{position:static;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:48px 0;}
  .section__head{margin-bottom:24px;}
  .entry{grid-template-columns:1fr;padding:18px;gap:16px;}
  .entry__media img{aspect-ratio:16/9;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .topbar__contact{display:none;}
  .brand__text{font-size:16px;}
  .hero__actions .btn{width:100%;}
  .hero__facts{gap:10px 18px;}
  .float-card{position:static;width:100%;margin-top:14px;}
  .faq-q{font-size:16px;padding:16px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1667D6;
  --c-primary-dark:#0E4EA8;
  --c-primary-soft:#E8F1FD;
  --c-amber:#F08A24;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#FAFCFF;
  --c-ink:#131C29;
  --c-ink-2:#45536A;
  --c-ink-3:#7C8AA0;
  --c-line:#E2E9F3;
  --c-footer:#0E1621;
  --c-ok:#1E9E6A;
  --c-warn:#D9822B;
  --c-err:#D94A4A;
  --c-empty:#9AA7B8;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,32,54,.05);
  --sh-md:0 2px 6px rgba(16,32,54,.05), 0 14px 30px -18px rgba(16,32,54,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,54,.24);
  --focus:0 0 0 4px rgba(22,103,214,.28);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han 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(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--c-ink)}
h1{font-size:42px;line-height:1.25}
h2{font-size:30px;line-height:1.3}
h3{font-size:21px;line-height:1.4;font-weight:600}
h4{font-size:17px}
p{margin:0 0 16px;max-width:720px;color:var(--c-ink-2)}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px}

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

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-footer);color:#C9D5E6;font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar__note{color:#B9C7DA}
.topbar__contact{color:#8FA2BB;white-space:nowrap}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:80}
.nav-shell{padding:16px 0 0}
.navbar{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:16px;
  box-shadow:var(--sh-md);
  padding:12px 16px;
  transition:box-shadow var(--t),border-color var(--t);
}
.navbar.is-scrolled{box-shadow:var(--sh-lg)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--c-primary-soft);
  display:flex;align-items:center;justify-content:center;
}
.brand__text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand__text{color:var(--c-primary)}
.nav-panel{display:flex;align-items:stretch;gap:10px;flex:1 1 auto;margin-left:6px}
.nav-card{
  display:flex;align-items:center;gap:10px;
  padding:8px 12px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  background:var(--c-surface-2);
  color:var(--c-ink);
  min-width:0;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.nav-card:hover{background:var(--c-primary-soft);border-color:#CBDDF7;color:var(--c-ink);transform:translateY(-2px)}
.nav-card:active{transform:translateY(1px)}
.nav-card.is-active{
  background:var(--c-primary-soft);
  border-color:#B7D2F5;
  box-shadow:inset 2px 0 0 var(--c-primary);
}
.nav-card__icon{
  width:28px;height:28px;flex:0 0 28px;
  border-radius:9px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.nav-card.is-active .nav-card__icon{background:#fff}
.nav-card__t{display:block;font-size:14px;font-weight:600;line-height:1.4;white-space:nowrap}
.nav-card__d{display:block;font-size:12px;color:var(--c-ink-3);line-height:1.4;white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;margin-left:auto}
.nav-link{font-size:14px;color:var(--c-ink-2);font-weight:500}
.nav-link:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;
  width:42px;height:42px;margin-left:auto;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface);
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;top:50%;
  width:18px;height:2px;background:var(--c-ink-2);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span::before{content:"";transform:translate(-50%,-6px)}
.nav-toggle span::after{content:"";transform:translate(-50%,6px)}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translate(-50%,0) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translate(-50%,0) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
  white-space:nowrap;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-sm)}
.btn--primary:hover{background:var(--c-primary-dark);color:#fff;box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline{background:var(--c-surface);color:var(--c-primary);border-color:#BFD7F6}
.btn--outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn--ghost{background:transparent;color:var(--c-primary);padding:0 8px}
.btn--ghost:hover{color:var(--c-primary-dark);text-decoration:underline}
.btn--sm{height:34px;font-size:13px;padding:0 16px}
.btn--lg{height:48px;font-size:16px;padding:0 28px}
.btn--block{width:100%}
.btn--amber{background:#fff;color:#B4650F;border-color:#F3C58E}
.btn--amber:hover{background:#FEF4E8;color:#8F4F0B}
.btn[disabled],.btn.is-disabled{background:#C8D2E0;color:#fff;border-color:#C8D2E0;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);padding:12px 0}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb__sep{color:#C2CEE0}
.crumb__now{color:var(--c-ink);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tint{background:var(--c-bg)}
.section--white{background:var(--c-surface)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section__head p{margin:8px 0 0;font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.eyebrow--amber{color:#B4650F;background:#FEF1E2}

/* ---------- Hero ---------- */
.page-hero{
  background:
    linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(244,247,251,.94) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
  padding:64px 0 72px;
}
.page-hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.page-hero h1{margin-bottom:18px}
.page-hero__lead{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:600px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-2);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:999px;
  padding:6px 14px;
}
.trust-item svg{color:var(--c-primary);flex:0 0 auto}
.hero-media{position:relative}
.hero-media__img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-lg);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  width:216px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-md);
  padding:16px 18px;
}
.hero-float__t{font-size:13px;color:var(--c-ink-3);margin-bottom:6px}
.hero-float__v{font-size:17px;font-weight:700;color:var(--c-ink);margin-bottom:4px}
.hero-float__v em{font-style:normal;color:var(--c-amber);font-variant-numeric:tabular-nums}
.hero-float__d{font-size:12px;color:var(--c-ink-3);margin:0}

/* ---------- 大卡 + 入口格 ---------- */
.board{
  display:grid;grid-template-columns:1fr 1fr;
  gap:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  overflow:hidden;
}
.board__media{position:relative;min-height:320px}
.board__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.board__body{padding:38px 40px}
.board__body h3{font-size:24px;margin-bottom:14px}
.board__body p{font-size:15px}
.board__list{margin-top:20px;display:grid;gap:10px}
.board__list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.board__list li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;
  border-radius:50%;background:var(--c-amber);
}
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.entry-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-sm);
  padding:22px;
  display:flex;flex-direction:column;gap:10px;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.entry-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px);border-color:#CBDDF7}
.entry-card__icon{
  width:40px;height:40px;border-radius:11px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.entry-card__title{font-size:17px;font-weight:600;color:var(--c-ink)}
.entry-card:hover .entry-card__title{color:var(--c-primary)}
.entry-card__desc{font-size:14px;color:var(--c-ink-3);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry-card__foot{margin-top:auto;font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;
  border-radius:999px;
  padding:4px 12px;
  line-height:1.5;
}
.badge--blue{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.badge--grey{background:#EFF3F9;color:var(--c-ink-2)}
.badge--amber{background:var(--c-amber);color:#fff}

/* ---------- 精选陈列 1 大 2 小 ---------- */
.showcase{display:grid;grid-template-columns:1.25fr 1fr;gap:24px}
.showcase__side{display:grid;gap:24px}
.media-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow var(--t),transform var(--t);
}
.media-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px)}
.media-card__img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media-card--tall .media-card__img{aspect-ratio:16/10}
.media-card__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.media-card__title{font-size:20px;font-weight:600;color:var(--c-ink)}
.media-card:hover .media-card__title{color:var(--c-primary)}
.media-card__text{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.media-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-ink-3);border-top:1px solid var(--c-line);padding-top:14px}
.media-card__link{font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}

/* ---------- 浏览路径 7:5 ---------- */
.path-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.path-steps{display:grid;gap:18px;margin-top:22px}
.path-step{display:flex;gap:16px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-sm)}
.path-step__no{
  flex:0 0 40px;height:40px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.path-step h4{margin-bottom:6px}
.path-step p{font-size:14px;margin:0;color:var(--c-ink-3)}
.path-aside{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  padding:26px;
}
.path-aside h3{font-size:19px;margin-bottom:14px}
.check-list{display:grid;gap:12px;margin:0 0 22px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--c-ok)}
.aside-note{
  background:var(--c-surface-2);
  border:1px dashed var(--c-line);
  border-radius:var(--r-md);
  padding:14px 16px;
  font-size:13px;
  color:var(--c-ink-3);
  margin-bottom:20px;
}

/* ---------- 状态条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.stat{padding:26px 24px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat__num{font-size:30px;font-weight:700;color:var(--c-amber);font-variant-numeric:tabular-nums;line-height:1.2}
.stat__label{font-size:15px;font-weight:600;color:var(--c-ink);margin-top:6px}
.stat__note{font-size:13px;color:var(--c-ink-3);margin-top:4px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:920px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-sm);overflow:hidden}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;
  text-align:left;
  padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q__icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;
  transition:transform var(--t),background var(--t);
}
.faq-item.is-open .faq-q__icon{transform:rotate(180deg);background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t);background:var(--c-surface-2)}
.faq-a__inner{padding:18px 24px 22px;font-size:15px;color:var(--c-ink-2);line-height:1.85;border-top:1px solid var(--c-line)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-footer);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:grid;grid-template-columns:1.4fr auto;
  gap:32px;align-items:center;
  box-shadow:var(--sh-lg);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:#A9BACF;font-size:15px;margin:0;max-width:640px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}
.btn--onDark{background:#fff;color:var(--c-primary)}
.btn--onDark:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn--lineLight{background:transparent;color:#DCE6F3;border-color:#33445C}
.btn--lineLight:hover{background:#1B2838;color:#fff;border-color:#4A5E78}

/* ---------- 联系卡 ---------- */
.contact-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:start}
.contact-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-md);
  padding:30px;
}
.contact-card h3{font-size:20px;margin-bottom:8px}
.contact-card > p{font-size:14px;color:var(--c-ink-3);margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:var(--c-ink-2)}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface-2);
  padding:11px 14px;
  font-size:15px;
  color:var(--c-ink);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field input,.field select{height:44px;padding:0 14px}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--c-primary);box-shadow:var(--focus);
}
.field__hint{font-size:13px;color:var(--c-ink-3)}
.form-note{font-size:13px;color:var(--c-ink-3);margin-top:14px}
.form-ok{
  display:flex;align-items:center;gap:10px;
  background:#EAF7F1;border:1px solid #BFE6D6;color:#12694A;
  border-radius:var(--r-btn);padding:12px 16px;font-size:14px;margin-bottom:18px;
}
.info-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-sm);
  overflow:hidden;
}
.info-card__img{width:100%;aspect-ratio:16/9;object-fit:cover}
.info-card__body{padding:24px}
.info-list{display:grid;gap:16px}
.info-list li{display:flex;gap:12px;font-size:14px;color:var(--c-ink-2)}
.info-list svg{flex:0 0 auto;margin-top:4px;color:var(--c-primary)}
.info-list strong{display:block;color:var(--c-ink);font-size:15px;margin-bottom:2px;font-weight:600}

/* ---------- 空态 / 骨架 ---------- */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);
  border-radius:var(--r-lg);padding:48px 24px;text-align:center;
}
.empty-state__icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.empty-state p{font-size:14px;color:var(--c-ink-3);margin:0 auto 18px;max-width:420px}
.skeleton{
  background:linear-gradient(90deg,#EEF3FA 25%,#F7FAFE 37%,#EEF3FA 63%);
  background-size:400% 100%;
  animation:sweep 1.4s ease infinite;
  border-radius:var(--r-sm);
}
@keyframes sweep{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#A9BACF;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__mark{
  width:36px;height:36px;border-radius:11px;background:#16202E;
  display:flex;align-items:center;justify-content:center;
}
.footer-brand__text{font-size:17px;font-weight:700;color:#fff}
.site-footer p{font-size:14px;color:#94A6BC;line-height:1.85;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#A9BACF;font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid #1D2938;
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#7D8FA6;flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .nav-toggle{display:block}
  .nav-actions{display:none}
  .nav-panel{
    position:absolute;
    top:calc(100% + 10px);left:0;right:0;
    display:none;
    flex-direction:column;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:16px;
    box-shadow:var(--sh-lg);
    padding:14px;
    margin-left:0;
    max-height:70vh;
    overflow:auto;
  }
  .nav-panel.is-open{display:flex}
  .nav-card{width:100%}
  .nav-card__t,.nav-card__d{white-space:normal}
  .page-hero__grid{grid-template-columns:1fr;gap:40px}
  .hero-float{position:static;width:100%;margin-top:16px}
  .board{grid-template-columns:1fr}
  .board__media{min-height:240px}
  .showcase{grid-template-columns:1fr}
  .path-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line)}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:18px}
  .page-hero{padding:40px 0 48px}
  .page-hero__lead{font-size:15.5px}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px}
  .entry-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .board__body{padding:26px 22px}
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:21px}
  .site-footer{padding-top:48px;margin-top:56px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .topbar__contact{display:none}
  .brand__text{font-size:16px}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--c-line)}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a__inner{padding:16px 18px 18px}
}

/* roulang page: category3 */
:root{
  --blue:#1667D6;
  --blue-dark:#0E4EA8;
  --blue-soft:#E8F1FD;
  --amber:#F08A24;
  --amber-soft:#FDF1E3;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --surface:#FAFCFF;
  --ink:#131C29;
  --ink-2:#45536A;
  --ink-3:#7C8AA0;
  --line:#E2E9F3;
  --ring:rgba(22,103,214,.28);
  --footer:#0E1621;
  --ok:#1E9E6A;
  --warn:#D9822B;
  --err:#D94A4A;
  --muted:#9AA7B8;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,32,54,.05);
  --sh-md:0 2px 6px rgba(16,32,54,.05), 0 14px 30px -18px rgba(16,32,54,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,54,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han 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(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--blue-dark)}
p{margin:0 0 16px;max-width:720px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3}
h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.2px}
h2{font-size:30px;font-weight:700}
h3{font-size:21px;font-weight:600;line-height:1.4}
h4{font-size:17px;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
input,select,textarea{font:inherit}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:8px}

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

/* ============ 顶部信息条 ============ */
.topbar{background:var(--footer);color:#fff;font-size:13px;line-height:1.4}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar__note{color:rgba(255,255,255,.88)}
.topbar__contact{color:rgba(255,255,255,.62)}

/* ============ 导航 ============ */
.nav-shell{
  position:sticky;
  top:0;
  z-index:70;
  padding:12px 0;
  background:var(--bg);
  transition:box-shadow .22s var(--ease), padding .22s var(--ease);
}
.nav-shell.is-stuck{box-shadow:0 14px 26px -22px rgba(16,32,54,.55)}
.navbar{
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-md);
  padding:10px 12px 10px 16px;
}
.nav-shell.is-stuck .navbar{border-color:#D6E1F0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:38px;height:38px;border-radius:11px;background:var(--blue-soft);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand__text{font-size:17px;font-weight:700;white-space:nowrap}
.nav-toggle{
  display:none;width:42px;height:42px;flex:0 0 auto;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;margin:0 auto}
.nav-toggle span::before,
.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-panel{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:flex-end;min-width:0}
.nav-card{
  display:flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:var(--r-sm);
  border:1px solid transparent;color:var(--ink);
  position:relative;min-width:0;
  transition:background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.nav-card:hover{background:var(--blue-soft);border-color:var(--line);color:var(--ink)}
.nav-card:active{transform:translateY(1px)}
.nav-card.is-active{background:var(--blue-soft);border-color:rgba(22,103,214,.35)}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;
  border-radius:2px;background:var(--blue);
}
.nav-card__icon{
  width:32px;height:32px;border-radius:9px;background:var(--blue-soft);
  color:var(--blue);display:grid;place-items:center;flex:0 0 auto;
}
.nav-card.is-active .nav-card__icon{background:#fff}
.nav-card__t{display:block;font-size:14px;font-weight:600;line-height:1.35;white-space:nowrap}
.nav-card__d{display:block;font-size:12px;color:var(--ink-3);line-height:1.4;white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-panel__foot{display:none}
.link-quiet{font-size:14px;color:var(--ink-2);font-weight:500}
.link-quiet:hover{color:var(--blue)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;text-align:center;
  white-space:nowrap;transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.btn--lg{height:48px;padding:0 28px}
.btn--md{height:42px;padding:0 20px}
.btn--sm{height:34px;padding:0 14px;font-size:14px}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:var(--blue-dark);color:#fff;box-shadow:0 14px 26px -16px rgba(14,78,168,.85);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline{background:#fff;color:var(--blue);border-color:rgba(22,103,214,.42)}
.btn--outline:hover{background:var(--blue-soft);color:var(--blue-dark);border-color:var(--blue)}
.btn--outline:active{transform:translateY(1px)}
.btn--light{background:#fff;color:var(--blue)}
.btn--light:hover{background:#EAF2FE;color:var(--blue-dark);transform:translateY(-1px)}
.btn--ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--ghost-light:hover{background:rgba(255,255,255,.16);color:#fff}
.btn--ghost{background:transparent;color:var(--blue);border:0;padding:0;height:auto}
.btn--ghost:hover{color:var(--blue-dark);text-decoration:underline}
.btn:disabled,.btn.is-disabled{background:#C8D2E0;color:#fff;border-color:#C8D2E0;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--alt{background:var(--bg)}
.section--plain{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--blue);
  background:var(--blue-soft);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:16px;letter-spacing:.2px;
}
.badge{display:inline-flex;align-items:center;font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:4px 11px;line-height:1.5}
.badge--blue{background:var(--blue-soft);color:var(--blue-dark)}
.badge--gray{background:#EEF3FA;color:var(--ink-2)}
.badge--amber{background:var(--amber-soft);color:#A85F0E}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--blue)}
.link-arrow::after{content:"→";transition:transform .22s var(--ease)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:24px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb span[aria-current]{color:var(--ink-3)}

/* ============ Hero ============ */
.hero{padding:40px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%, var(--bg) 100%)}
.hero__grid{display:grid;grid-template-columns:6.5fr 5.5fr;gap:48px;align-items:center}
.hero__title{margin-bottom:18px}
.hero__sub{font-size:17px;color:var(--ink-2);margin-bottom:26px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero__trust{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--ink-2)}
.hero__trust li{display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--blue);flex:0 0 auto}
.hero__trust li:nth-child(2) .dot{background:var(--amber)}
.hero__trust li:nth-child(4) .dot{background:var(--ok)}
.hero__media{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-lg);background:#fff;
}
.hero__media img{width:100%;height:400px;object-fit:cover}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(244,247,251,.88) 100%);
  opacity:.28;pointer-events:none;
}
.float-card{
  position:absolute;right:20px;bottom:20px;z-index:2;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-md);padding:14px 18px;min-width:180px;
}
.float-card__label{display:block;font-size:12px;color:var(--ink-3)}
.float-card strong{display:block;font-size:20px;color:var(--amber);font-weight:700;line-height:1.5}
.float-card__note{display:block;font-size:12px;color:var(--ink-3)}

/* ============ 入口格 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.entry-card{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px;box-shadow:var(--sh-sm);color:var(--ink);
  transition:box-shadow .22s var(--ease), transform .22s var(--ease), border-color .22s var(--ease);
}
.entry-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px);border-color:#D6E1F0;color:var(--ink)}
.entry-card__icon{
  width:36px;height:36px;border-radius:10px;background:var(--blue-soft);
  color:var(--blue);display:grid;place-items:center;flex:0 0 auto;
}
.entry-card__t{display:block;font-size:15px;font-weight:600;line-height:1.4}
.entry-card__d{display:block;font-size:13px;color:var(--ink-3);line-height:1.6}

/* ============ 时间轴 ============ */
.tl-section{position:relative;overflow:hidden;background:var(--card)}
.tl-section::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(#1667D6 1px, transparent 1px);
  background-size:22px 22px;opacity:.04;pointer-events:none;
}
.tl-section > .container{position:relative;z-index:1}
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:1px;background:var(--line);
}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:24px;padding-bottom:26px;position:relative}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  width:56px;height:56px;border-radius:16px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-sm);
  display:grid;place-items:center;
  font-size:18px;font-weight:700;color:var(--blue);
  position:relative;z-index:1;
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:24px;
  display:grid;grid-template-columns:1fr 250px;gap:24px;
  transition:box-shadow .22s var(--ease), transform .22s var(--ease);
}
.tl-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.tl-card__body h3{margin:12px 0 10px}
.tl-card__body p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.points{display:grid;gap:8px;margin-bottom:16px}
.points li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2)}
.points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--blue);
}
.tl-card__media{margin:0}
.tl-card__media img{
  width:100%;aspect-ratio:16/9;height:100%;object-fit:cover;
  border-radius:var(--r-md);border:1px solid var(--line);
}

/* ============ CTA 横条 ============ */
.cta-band-wrap{padding:0 0 96px;background:var(--card)}
.cta-band{
  background:var(--blue);border-radius:var(--r-lg);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 26px 50px -30px rgba(14,78,168,.9);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;max-width:640px;margin:0}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);overflow:hidden;transition:box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-md)}
.faq-item.is-open{border-color:rgba(22,103,214,.35)}
.faq-q{margin:0}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:20px 22px;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-icon{
  position:relative;width:22px;height:22px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);
  transition:transform .22s var(--ease), background .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--blue);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--blue-soft)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a__inner{padding:0 22px 22px;background:var(--bg)}
.faq-a__inner p{font-size:15px;color:var(--ink-2);padding-top:16px;margin:0}

/* ============ 联系区 ============ */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.contact-copy p{color:var(--ink-2);font-size:15px}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);padding:22px;
}
.info-card h4{margin-bottom:8px}
.info-card p{font-size:14px;color:var(--ink-2);margin:0}
.info-card a{font-weight:600}
.info-card--wide{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__mark{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;
}
.footer-brand__text{color:#fff;font-size:17px;font-weight:700}
.site-footer p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;max-width:420px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 状态组件 ============ */
.skeleton{
  background:linear-gradient(90deg,#EEF3FA 25%,#F7FAFE 37%,#EEF3FA 63%);
  background-size:400% 100%;animation:sweep 1.4s ease-in-out infinite;
  border-radius:var(--r-sm);height:16px;
}
@keyframes sweep{0%{background-position:100% 50%}100%{background-position:0 50%}}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-lg);color:var(--ink-3);
}
.empty-state__mark{
  width:64px;height:64px;margin:0 auto 16px;border-radius:18px;
  background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;
}
.empty-state p{margin:0 auto 20px;font-size:15px;max-width:420px}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1024px){
  .topbar__contact{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .nav-actions{display:none}
  .nav-panel{
    position:fixed;left:0;right:0;top:0;bottom:0;z-index:90;
    background:var(--card);flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:10px;padding:96px 20px 28px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity .22s var(--ease), transform .22s var(--ease);
  }
  .nav-panel.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav-card{border-color:var(--line);padding:14px}
  .nav-card__d{white-space:normal}
  .nav-panel__foot{display:flex;flex-direction:column;gap:12px;margin-top:12px}
  .nav-panel__foot .btn{width:100%}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__media img{height:340px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .tl-card{grid-template-columns:1fr}
  .tl-card__media img{height:200px}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
  .cta-band-wrap{padding-bottom:64px}
}
@media (max-width:768px){
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:18px}
  body{font-size:15.5px}
  .container{padding:0 18px}
  .hero{padding:28px 0 48px}
  .hero__media{order:-1}
  .hero__media img{height:280px}
  .timeline::before{display:none}
  .tl-item{grid-template-columns:1fr;gap:14px;padding-bottom:22px}
  .tl-num{width:46px;height:46px;border-radius:13px;font-size:16px}
  .tl-card{padding:18px}
  .cta-band{padding:28px}
  .cta-band h2{font-size:22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .contact-cards{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cta-band-wrap{padding-bottom:48px}
  .site-footer{padding:48px 0 24px}
}
@media (max-width:520px){
  .entry-grid{grid-template-columns:1fr}
  .hero__cta{flex-direction:column}
  .hero__cta .btn{width:100%}
  .hero__trust{gap:14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{align-items:flex-start}
}