/* roulang page: index */
:root{
  --brand:#1657C8;
  --brand-dark:#0F3E8C;
  --brand-light:#2A72E0;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FB;
  --accent:#F97316;
  --accent-dark:#E2620A;
  --ink:#10192B;
  --ink-2:#566781;
  --ink-3:#8A98AE;
  --line:#E4EAF3;
  --page:#F7F9FD;
  --ok:#12A150;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,25,43,.05),0 6px 20px rgba(16,25,43,.07);
  --sh-hover:0 12px 30px rgba(16,25,43,.12);
  --sh-nav:0 2px 12px rgba(16,25,43,.06);
  --tr:200ms cubic-bezier(.2,.6,.3,1);
  --bs-primary:#1657C8;
  --bs-body-color:#10192B;
  --bs-body-bg:#F7F9FD;
  --bs-border-color:#E4EAF3;
  --bs-border-radius:14px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:16px;
  --bs-link-color:#1657C8;
  --bs-link-hover-color:#F97316;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  padding-bottom:78px;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:.2px}
h1{font-size:40px;line-height:1.25;margin:0 0 18px}
h2{font-size:30px;line-height:1.3;margin:0 0 12px}
h3{font-size:20px;font-weight:600;line-height:1.45;margin:0 0 10px}
p{margin:0 0 18px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.bg-soft{background:var(--brand-50)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-100);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:14px;letter-spacing:.5px;
}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;max-width:640px}
.lead-p{max-width:660px;color:var(--ink-2)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}
.link-more i{transition:transform var(--tr)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 24px;border:1px solid transparent;transition:all var(--tr);line-height:1.4}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:none}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-brand:active{background:var(--brand-dark);transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.22)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-accent:active{background:var(--accent-dark);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-dark);border-color:var(--brand-100);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{background:transparent;color:var(--brand);padding:8px 4px}
.btn-text:hover{color:var(--accent)}
.btn-lg{padding:15px 32px;font-size:16px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.disabled{opacity:.5;pointer-events:none}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:all var(--tr)}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.nav-main{display:flex;align-items:center;gap:28px;height:76px;transition:height var(--tr)}
.site-header.scrolled .nav-main{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:40px;height:40px;flex-shrink:0}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.3px;white-space:nowrap}
.brand-name:hover{color:var(--brand)}
.nav-search{flex:1 1 auto;max-width:520px;margin:0 auto;position:relative;display:flex;align-items:center}
.nav-search .bi-search{position:absolute;left:16px;font-size:16px;color:var(--ink-3);pointer-events:none}
.nav-search input{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 118px 0 44px;font-size:15px;color:var(--ink);background:#fff;
  transition:all var(--tr);outline:none;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.nav-search button{
  position:absolute;right:5px;top:5px;height:36px;border:0;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;padding:0 20px;cursor:pointer;
  transition:background var(--tr);
}
.nav-search button:hover{background:var(--brand-dark)}
.nav-links{display:flex;align-items:center;gap:18px;flex-shrink:0}
.nav-links a{font-size:15px;font-weight:500;color:var(--ink-2)}
.nav-links a:hover{color:var(--brand)}
.nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;font-size:20px;color:var(--ink);cursor:pointer}
.cat-bar{border-top:1px solid var(--line);background:#fff}
.cat-bar-inner{display:flex;gap:6px;height:52px;align-items:center;overflow-x:auto;scrollbar-width:none}
.cat-bar-inner::-webkit-scrollbar{display:none}
.cat-pill{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:all var(--tr);
}
.cat-pill:hover{background:var(--brand-50);color:var(--brand)}
.cat-pill.active{background:var(--brand-50);color:var(--brand);font-weight:600}
.cat-pill.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-8px;height:2px;background:var(--brand);border-radius:2px}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:16px 0 20px}
.mobile-panel.open{display:block}
.mobile-panel .nav-search{max-width:none;margin:0 0 14px}
.mobile-panel .nav-search input{height:48px}
.mob-link{display:flex;align-items:center;height:48px;padding-left:14px;font-size:16px;color:var(--ink);border-left:3px solid transparent;border-bottom:1px solid var(--line)}
.mob-link.active{border-left-color:var(--brand);color:var(--brand);font-weight:600;background:var(--brand-50)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#ffffff 0%,#ffffff 52%,var(--brand-50) 100%);
  padding:72px 0 84px;
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:620px;height:620px;
  background:radial-gradient(circle at 30% 30%,rgba(22,87,200,.10),rgba(22,87,200,0) 68%);
  border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center;position:relative;z-index:2;min-height:520px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-100);color:var(--brand);
  font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px;
}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:16px}
.hero h1 span{color:var(--brand)}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:22px}
.trust-item{padding:0 22px;border-left:1px solid var(--line)}
.trust-item:first-child{padding-left:0;border-left:0}
.trust-num{font-size:22px;font-weight:700;color:var(--brand-dark);line-height:1.2}
.trust-label{font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-visual img{border-radius:16px;box-shadow:var(--sh-card);width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;left:-24px;bottom:28px;background:#fff;border-radius:var(--r-card);
  box-shadow:var(--sh-hover);padding:16px 20px;min-width:190px;
}
.float-card .fc-label{font-size:13px;color:var(--ink-3);margin-bottom:2px}
.float-card .fc-value{font-size:26px;font-weight:700;color:var(--brand-dark);line-height:1.2}
.float-card .fc-foot{font-size:12px;color:var(--ok);font-weight:600}

/* ---------- 卖点三连 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.f-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-card);transition:all var(--tr);display:flex;flex-direction:column;
}
.f-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.f-card.wide{grid-column:span 6}
.f-card.narrow{grid-column:span 3}
.f-icon{
  width:48px;height:48px;border-radius:12px;background:var(--brand-50);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;transition:all var(--tr);
}
.f-card:hover .f-icon{background:var(--brand);color:#fff}
.f-card h3{margin-bottom:10px}
.f-card p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.f-card .link-more{margin-top:auto}
.f-list{list-style:none;padding:0;margin:0 0 4px}
.f-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);margin-bottom:8px}
.f-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand-100)}

/* ---------- 场景演示 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.scene-item{position:relative;padding:18px 0 18px 24px;border-left:3px solid transparent;cursor:pointer;transition:all var(--tr)}
.scene-item .sc-num{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:1px}
.scene-item h3{font-size:18px;margin:6px 0 6px}
.scene-item p{font-size:15px;color:var(--ink-2);margin:0}
.scene-item.active{border-left-color:var(--accent)}
.scene-item.active .sc-num{color:var(--accent)}
.scene-item:hover{border-left-color:var(--brand-100)}
.scene-media{position:relative}
.scene-media img{border-radius:var(--r-img);box-shadow:var(--sh-card);width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-tag{
  position:absolute;right:-14px;top:24px;background:#fff;border-radius:var(--r-pill);
  box-shadow:var(--sh-hover);padding:10px 18px;font-size:13px;font-weight:600;color:var(--brand-dark);
  display:flex;align-items:center;gap:8px;
}
.scene-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block}

/* ---------- 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px 24px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);transition:all var(--tr);display:flex;flex-direction:column;height:100%;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--brand-50)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-badge{
  position:absolute;left:12px;bottom:12px;background:rgba(238,244,255,.92);color:var(--brand-dark);
  font-size:12px;font-weight:600;border-radius:6px;padding:4px 10px;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--ink)}
.post-body h3 a:hover{color:var(--brand)}
.post-body p{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}
.post-foot .time{font-size:14px;color:var(--ink-3)}
.post-foot .arrow{color:var(--brand);font-size:16px;transition:transform var(--tr)}
.post-card:hover .post-foot .arrow{transform:translateX(4px)}
.empty-box{
  min-height:240px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--ink-3);
  grid-column:1/-1;
}
.empty-box i{font-size:48px;color:var(--brand-100)}
.empty-box p{margin:0;font-size:15px}
.list-more{display:flex;justify-content:center;margin-top:44px}

/* ---------- 社会认同 ---------- */
.stat-strip{
  background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-card);
  padding:40px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:48px;
}
.stat-item{text-align:center;position:relative}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--brand-100)}
.stat-value{font-size:38px;font-weight:700;color:var(--brand-dark);line-height:1.1;margin-bottom:4px}
.stat-label{font-size:14px;color:var(--ink-2)}
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:48px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-card)}
.quote-card .qmark{font-size:30px;color:var(--brand-100);line-height:1;margin-bottom:12px}
.quote-card p{font-size:15px;color:var(--ink-2);margin-bottom:20px}
.quote-user{display:flex;align-items:center;gap:12px}
.avatar{
  width:48px;height:48px;border-radius:50%;background:var(--brand-100);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;
}
.quote-user .qname{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4}
.quote-user .qrole{font-size:13px;color:var(--ink-3)}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.logo-item{
  height:64px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--ink-3);
  filter:grayscale(1);transition:all var(--tr);text-align:center;padding:0 10px;
}
.logo-item:hover{filter:grayscale(0);color:var(--brand);border-color:var(--brand-100);box-shadow:var(--sh-card)}

/* ---------- FAQ ---------- */
.faq{max-width:880px}
.faq .accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;background:#fff}
.faq .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;padding:20px 54px 20px 22px;
  border:0;box-shadow:none;border-left:3px solid transparent;transition:all var(--tr);
}
.faq .accordion-button:not(.collapsed){color:var(--brand);border-left-color:var(--brand);background:#fff;box-shadow:none}
.faq .accordion-button:focus{box-shadow:0 0 0 4px var(--brand-100);border-color:var(--brand)}
.faq .accordion-button::after{
  background-image:none;content:"\F282";font-family:"bootstrap-icons";font-size:16px;
  color:var(--ink-3);width:auto;height:auto;transition:transform var(--tr);transform-origin:center;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand)}
.faq .accordion-body{font-size:15px;color:var(--ink-2);line-height:1.8;padding:0 24px 22px}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--brand-50);padding:96px 0;text-align:center}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:var(--ink-2);max-width:560px;margin:0 auto 30px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#C9D8F2;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-name:hover{color:var(--accent)}
.site-footer p{font-size:14px;line-height:1.8;color:#C9D8F2;margin-bottom:14px;max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#C9D8F2}
.footer-col a:hover{color:var(--accent)}
.footer-contact{font-size:14px;color:#C9D8F2}
.footer-contact span{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:56px;padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{margin:0;font-size:13px;color:#A9BEE4;max-width:none}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .fb-links a{font-size:13px;color:#A9BEE4}
.footer-bottom .fb-links a:hover{color:var(--accent)}

/* ---------- 底部固定转化条 ---------- */
.convbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  transform:translateY(120%);transition:transform 260ms cubic-bezier(.2,.6,.3,1);
  background:transparent;pointer-events:none;
}
.convbar.show{transform:translateY(0);pointer-events:auto}
.convbar-inner{
  max-width:720px;margin:0 auto 18px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-hover);border-radius:var(--r-pill);
  display:flex;align-items:center;gap:16px;padding:10px 12px 10px 24px;
}
.convbar-text{flex:1;font-size:14px;font-weight:600;color:var(--ink)}
.convbar-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--ink-3);font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all var(--tr);flex-shrink:0;
}
.convbar-close:hover{color:var(--ink);background:var(--brand-50)}
.mobile-convbar{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .logo-wall{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:991px){
  body{padding-bottom:72px}
  h1,.hero h1{font-size:30px}
  h2{font-size:24px}
  .section{padding:72px 0}
  .nav-main{height:64px;gap:14px}
  .site-header.scrolled .nav-main{height:60px}
  .nav-search,.nav-links{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0}
  .hero-sub{font-size:16px}
  .hero-cta .btn{flex:1 1 100%;text-align:center}
  .trust-row{display:grid;grid-template-columns:1fr 1fr;gap:18px 0}
  .trust-item{padding:0 16px}
  .trust-item:nth-child(odd){padding-left:0;border-left:0}
  .float-card{left:12px;bottom:12px;padding:12px 16px;min-width:150px}
  .feature-grid{gap:18px}
  .f-card.wide,.f-card.narrow{grid-column:span 12}
  .scene-grid{grid-template-columns:1fr;gap:36px}
  .scene-media{order:-1}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:28px 0;padding:32px 16px}
  .stat-item:nth-child(odd)::before{display:none}
  .stat-item:nth-child(3)::before,.stat-item:nth-child(4)::before{display:none}
  .quote-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .convbar.desktop-only{transform:none;pointer-events:auto}
  .mobile-convbar{
    display:flex;align-items:center;gap:12px;background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -2px 12px rgba(16,25,43,.08);padding:8px 14px;height:64px;
  }
  .mobile-convbar .mc-left{flex:1;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--ink)}
  .mobile-convbar .mc-left i{font-size:20px;color:var(--brand)}
  .mobile-convbar .btn{padding:10px 20px;font-size:14px}
  .desktop-only{display:none !important}
}
@media (max-width:575px){
  body{padding-bottom:70px}
  .container{padding-left:16px;padding-right:16px}
  h1,.hero h1{font-size:26px}
  h2{font-size:21px}
  h3{font-size:17px}
  .section{padding:48px 0}
  .hero h1{font-size:26px}
  .post-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .stat-value{font-size:30px}
  .scene-tag{right:8px;top:12px;font-size:12px;padding:8px 14px}
  .convbar-inner{margin:0 12px 12px;padding:10px 10px 10px 18px;border-radius:16px}
}

/* roulang page: article */
:root{
  --brand:#1657C8;
  --brand-deep:#0F3E8C;
  --brand-light:#2A72E0;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FB;
  --accent:#F97316;
  --accent-dark:#E2660C;
  --ink:#10192B;
  --ink-2:#566781;
  --ink-3:#8A98AE;
  --line:#E4EAF3;
  --page:#F7F9FD;
  --white:#FFFFFF;
  --ok:#12A150;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(16,25,43,.05),0 6px 20px rgba(16,25,43,.07);
  --sh-hover:0 12px 30px rgba(16,25,43,.12);
  --sh-nav:0 2px 12px rgba(16,25,43,.06);
  --t:200ms cubic-bezier(.2,.6,.3,1);
  --bs-primary:#1657C8;
  --bs-body-color:#10192B;
  --bs-body-bg:#F7F9FD;
  --bs-border-color:#E4EAF3;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-border-radius-lg:14px;
  --bs-link-color:#1657C8;
  --bs-link-hover-color:#F97316;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t)}
a:hover{color:var(--accent)}
ul,ol{padding-left:20px}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);line-height:1.3}
p{margin:0 0 18px}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}

/* ============ 顶部阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand);z-index:2000;transition:width 120ms linear}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all var(--t);white-space:nowrap;line-height:1;
}
.btn:active{transform:translateY(0)}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:8px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(249,115,22,.24)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(249,115,22,.3)}
.btn-primary-solid{background:var(--brand);color:#fff}
.btn-primary-solid:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-outline-brand:hover{background:var(--brand-50);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px)}
.btn-ghost{background:var(--brand-50);color:var(--brand);border-color:transparent}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-deep)}
.btn-text{background:transparent;color:var(--brand);padding:0 4px;height:auto}
.btn-text:hover{color:var(--accent)}
.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);transition:box-shadow var(--t);
  backdrop-filter:saturate(120%);
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.header-main{display:flex;align-items:center;gap:24px;padding:14px 0;transition:padding var(--t)}
.site-header.is-scrolled .header-main{padding:8px 0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;flex-shrink:0}
.brand-name{font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand-name{color:var(--brand)}
.nav-search{
  flex:1 1 auto;max-width:520px;display:flex;align-items:center;gap:8px;
  height:46px;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:0 6px 0 16px;transition:border-color var(--t),box-shadow var(--t);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.nav-search .bi-search{color:var(--ink-3);font-size:16px;flex-shrink:0}
.nav-search input{
  flex:1;border:0;outline:0;background:transparent;height:44px;
  font-size:15px;color:var(--ink);min-width:0;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search button{
  height:36px;padding:0 20px;border:0;border-radius:999px;background:var(--brand);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background var(--t);
}
.nav-search button:hover{background:var(--brand-deep)}
.nav-links{display:flex;align-items:center;gap:18px;flex-shrink:0}
.nav-links a{font-size:15px;color:var(--ink-2);font-weight:500}
.nav-links a:hover{color:var(--brand)}
.nav-links a.btn-ghost{color:var(--brand);font-weight:600}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--ink);font-size:20px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.header-cats{display:flex;align-items:center;gap:6px;padding-bottom:8px;overflow-x:auto}
.header-cats::-webkit-scrollbar{display:none}
.header-cats a{
  position:relative;padding:6px 14px;font-size:14px;color:var(--ink-2);
  border-radius:999px;white-space:nowrap;
}
.header-cats a:hover{background:var(--brand-50);color:var(--brand)}
.header-cats a.active{background:var(--brand-50);color:var(--brand);font-weight:600}
.header-cats a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-8px;height:2px;
  background:var(--brand);border-radius:2px;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 20px}
.mobile-panel.is-open{display:block}
.mobile-panel .m-search{display:flex;align-items:center;gap:8px;height:48px;border:1px solid var(--line);border-radius:999px;padding:0 6px 0 16px;margin-bottom:14px}
.mobile-panel .m-search input{flex:1;border:0;outline:0;height:46px;font-size:15px;min-width:0}
.mobile-panel .m-search button{height:36px;padding:0 18px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-weight:600}
.m-list{display:flex;flex-direction:column}
.m-list a{
  display:flex;align-items:center;height:48px;padding-left:14px;font-size:15px;
  color:var(--ink-2);border-left:3px solid transparent;border-bottom:1px solid var(--line);
}
.m-list a.active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-50)}

/* ============ 页头 / 面包屑 ============ */
.page-head{background:linear-gradient(180deg,#FFFFFF 0%,var(--brand-50) 100%);padding:32px 0 36px;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:18px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.crumb .current{color:var(--brand);font-weight:600;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head h1{
  font-size:34px;line-height:1.35;max-width:900px;margin-bottom:16px;
  letter-spacing:-.2px;word-break:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--ink-3)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .divider{width:1px;height:14px;background:var(--line)}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand);font-size:13px;font-weight:600;
}

/* ============ 文章布局 ============ */
.article-section{padding:48px 0 8px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:32px 36px 36px;
}
.article-cover{margin:0 0 28px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img)}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--ink)}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:22px;font-weight:700;line-height:1.4;
  margin:40px 0 18px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--accent);
}
.article-body h3{font-size:18px;font-weight:600;margin:28px 0 12px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--brand-50);
  border-left:3px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-2);font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:24px auto;border-radius:var(--r-img)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th{background:var(--brand-50);color:var(--brand-deep);font-weight:600;text-align:left;padding:12px 14px;border:1px solid var(--line)}
.article-body td{padding:12px 14px;border:1px solid var(--line);color:var(--ink-2)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body>*:first-child{margin-top:0}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.article-tags a{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--page);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.article-tags a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-50)}
.empty-state{padding:56px 20px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-img);background:var(--page)}
.empty-state .bi{font-size:44px;color:var(--ink-3)}
.empty-state h2{font-size:20px;margin:16px 0 8px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* ============ 侧栏 ============ */
.side-sticky{position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:22px 22px 18px;margin-bottom:20px;
}
.side-title{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand)}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{padding-left:12px;border-left:3px solid transparent;margin-bottom:4px}
.side-list li:hover{border-left-color:var(--brand);background:var(--brand-50);border-radius:0 8px 8px 0}
.side-list a{display:block;padding:9px 4px;font-size:14px;color:var(--ink-2);line-height:1.5}
.side-list a:hover{color:var(--brand)}
.side-cta{background:linear-gradient(160deg,var(--brand-50) 0%,#FFFFFF 100%)}
.side-cta p{font-size:14px;color:var(--ink-2);margin:8px 0 16px}
.side-cta .btn{width:100%}

/* ============ 相关推荐 ============ */
.related{margin-top:40px}
.related h2{font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.related h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--brand)}
.card-post{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;height:100%;display:flex;flex-direction:column;
}
.card-post:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.card-post .thumb{position:relative;overflow:hidden}
.card-post .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t)}
.card-post:hover .thumb img{transform:scale(1.03)}
.thumb-badge{
  position:absolute;left:12px;bottom:12px;height:24px;padding:0 10px;display:inline-flex;align-items:center;
  border-radius:999px;background:rgba(255,255,255,.9);color:var(--brand-deep);font-size:12px;font-weight:600;
}
.card-post .body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.card-post .body h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-post .body h3 a{color:var(--ink)}
.card-post .body h3 a:hover{color:var(--brand)}
.card-post .excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-post .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:12px;border-top:1px solid var(--line)}
.card-post .foot .bi-arrow-right{color:var(--brand);transition:transform var(--t)}
.card-post:hover .foot .bi-arrow-right{transform:translateX(4px)}
.back-row{margin-top:32px;display:flex;justify-content:flex-start}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--brand-50);padding:72px 0;margin-top:72px;text-align:center}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{font-size:16px;color:var(--ink-2);max-width:560px;margin:0 auto 26px}
.cta-band .cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ============ 底部转化条 ============ */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1200;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(16,25,43,.08);
  padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.convert-bar .cb-left{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);min-width:0}
.convert-bar .cb-left .bi{color:var(--brand);font-size:18px;flex-shrink:0}
.convert-bar .cb-left span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.convert-bar .btn{height:40px;padding:0 18px;font-size:14px}
.convert-bar .cb-close{display:none;background:transparent;border:0;color:var(--ink-3);font-size:18px;cursor:pointer}
.convert-bar .cb-close:hover{color:var(--ink)}
.convert-bar.is-dismissed{display:none}
body{padding-bottom:64px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#C9D8F2;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.8;color:#C9D8F2;margin:0 0 14px;max-width:360px}
.footer-contact{margin-top:16px;font-size:14px;line-height:2}
.footer-contact span{color:#fff}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:11px}
.footer-col a{color:#C9D8F2;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:#9FB6E0}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:#C9D8F2}
.fb-links a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-head h1{font-size:30px}
  .footer-grid{gap:32px}
}
@media (max-width:991.98px){
  .nav-search{display:none}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-main{padding:12px 0;gap:14px}
  .brand{margin-right:auto}
  .side-sticky{position:static;margin-top:32px}
  .article-section{padding:36px 0 8px}
  .article-card{padding:24px 22px 28px}
  .cta-band{padding:56px 0;margin-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-head h1{font-size:28px}
  .header-cats{gap:2px}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .page-head{padding:24px 0 28px}
  .page-head h1{font-size:26px}
  .article-body h2{font-size:20px;margin-top:32px}
  .article-card{padding:20px 18px 24px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .card-post{margin-bottom:20px}
  .cta-band h2{font-size:22px}
  .cta-band .cta-actions{flex-direction:column;align-items:stretch}
  .cta-band .cta-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:17px}
  .page-head h1{font-size:22px;line-height:1.4}
  .meta-row{font-size:13px;gap:10px}
  .article-card{border-radius:12px;padding:18px 16px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fb-links a{margin-left:0}
}

/* roulang page: category1 */
:root{
  --bs-primary:#1657C8;
  --bs-primary-rgb:22,87,200;
  --bs-body-color:#10192B;
  --bs-body-bg:#F7F9FD;
  --bs-border-color:#E4EAF3;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-border-radius-lg:14px;
  --bs-link-color:#1657C8;
  --bs-link-hover-color:#F97316;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;

  --brand:#1657C8;
  --brand-dark:#0F3E8C;
  --brand-light:#2A72E0;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FB;
  --accent:#F97316;
  --ink:#10192B;
  --ink-2:#566781;
  --ink-3:#8A98AE;
  --line:#E4EAF3;
  --bg:#F7F9FD;
  --white:#FFFFFF;
  --ok:#12A150;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(16,25,43,.05),0 6px 20px rgba(16,25,43,.07);
  --sh-hover:0 12px 30px rgba(16,25,43,.12);
  --sh-nav:0 2px 12px rgba(16,25,43,.06);
  --t:200ms cubic-bezier(.2,.6,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,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;
  padding-bottom:76px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t)}
a:hover{color:var(--accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1240px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:13px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),background-color var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--r-btn)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(22,87,200,.22)}
.btn-primary:hover{background:#124BB0;color:#fff;box-shadow:0 8px 20px rgba(22,87,200,.28)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(249,115,22,.24)}
.btn-accent:hover{background:#E26205;color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.3)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-outline:hover{background:var(--brand-50);color:var(--brand-dark);border-color:var(--brand)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-dark);border-color:var(--brand-100)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.header-bar{
  display:flex;
  align-items:center;
  gap:24px;
  height:76px;
  transition:height var(--t);
}
.site-header.is-scrolled .header-bar{height:64px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;flex:0 0 auto}
.brand-name{
  font-size:19px;
  font-weight:700;
  color:var(--brand-dark);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--brand-light)}

.header-search{
  flex:1 1 auto;
  max-width:520px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 6px 0 14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--t),box-shadow var(--t);
}
.header-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-100);
}
.header-search .bi-search{color:var(--ink-3);font-size:16px;flex:0 0 auto}
.header-search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  outline:none;
  background:transparent;
  font-size:15px;
  color:var(--ink);
}
.header-search input::placeholder{color:var(--ink-3)}
.header-search .btn{padding:9px 18px;border-radius:999px;font-size:14px}

.nav-links{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-links a{
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  padding:8px 12px;
  border-radius:8px;
  transition:color var(--t),background-color var(--t);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-50)}
.nav-links .btn-ghost{padding:9px 16px}

.menu-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  font-size:20px;
}

.header-pills{border-top:1px solid var(--line);background:#fff}
.cat-pills{display:flex;align-items:center;gap:6px;overflow-x:auto;padding:4px 0 0}
.cat-pills a{
  position:relative;
  display:inline-block;
  padding:10px 16px 12px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color var(--t),background-color var(--t);
}
.cat-pills a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  background:transparent;
  border-radius:2px;
  transition:background-color var(--t);
}
.cat-pills a:hover{color:var(--brand);background:var(--brand-50);border-radius:8px 8px 0 0}
.cat-pills a.active{color:var(--brand)}
.cat-pills a.active::after{background:var(--brand)}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-search{
  display:flex;align-items:center;gap:10px;
  height:48px;padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  margin-bottom:12px;
}
.mobile-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.mobile-search .bi-search{color:var(--ink-3)}
.mobile-search input{flex:1;border:0;outline:none;background:transparent;font-size:15px;min-width:0}
.mobile-nav a{
  display:block;
  height:48px;
  line-height:48px;
  padding:0 14px;
  border-left:3px solid transparent;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
}
.mobile-nav a:hover{background:var(--brand-50);color:var(--brand)}
.mobile-nav a.active{border-left-color:var(--brand);color:var(--brand);background:var(--brand-50)}

@media (max-width:991.98px){
  .header-search{display:none}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-bar{height:64px;gap:12px}
  .brand-name{font-size:17px}
  .site-header.is-scrolled .header-bar{height:60px}
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb-list{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:14px;color:var(--ink-2);
}
.breadcrumb-list a{color:var(--ink-2)}
.breadcrumb-list a:hover{color:var(--brand)}
.breadcrumb-list .sep{color:var(--ink-3)}
.breadcrumb-list .current{color:var(--brand);font-weight:600}

/* ---------- Hero 条式 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(135deg,#FFFFFF 0%,#EEF4FF 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:460px;height:460px;
  background:radial-gradient(circle,rgba(22,87,200,.10) 0%,rgba(22,87,200,0) 70%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:64px 0;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-dark);
  font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{font-size:38px;line-height:1.25;margin-bottom:16px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16px;color:var(--ink-2);max-width:34em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-stats{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-stats .stat{display:flex;flex-direction:column;line-height:1.3}
.hero-stats .stat b{font-size:26px;color:var(--brand-dark);font-variant-numeric:tabular-nums}
.hero-stats .stat span{font-size:13px;color:var(--ink-3)}
.hero-stats .divider{width:1px;height:32px;background:var(--line)}

.hero-visual{position:relative}
.hero-visual .pic{
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--sh-card);
  aspect-ratio:16/11;
  background:var(--brand-50);
}
.hero-visual .pic img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;
  left:-18px;bottom:-20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--sh-card);
  padding:14px 18px;
  min-width:172px;
}
.hero-float b{display:block;font-size:22px;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-float span{font-size:13px;color:var(--ink-3)}

@media (max-width:991.98px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:44px 0}
  .page-hero h1{font-size:28px}
  .hero-visual .pic{aspect-ratio:16/10}
  .hero-float{left:auto;right:12px;bottom:-16px;padding:12px 14px;min-width:150px}
}
@media (max-width:575.98px){
  .hero-actions .btn{width:100%}
  .hero-stats{gap:14px}
  .hero-stats .stat b{font-size:22px}
  .hero-stats .divider{display:none}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:30px;margin-bottom:10px}
.section-head p{color:var(--ink-2);font-size:15px;margin:0}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--brand);text-transform:uppercase;
  margin-bottom:10px;
}
.section-head.with-link{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;
}
.link-more{font-size:15px;font-weight:600;white-space:nowrap}
.link-more .bi{transition:transform var(--t)}
.link-more:hover .bi{transform:translateX(3px)}

@media (max-width:991.98px){
  .section{padding:64px 0}
  .section-head h2{font-size:24px}
  .section-head.with-link{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575.98px){
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
}

/* ---------- 简介两段 ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.intro-grid p{color:var(--ink-2);font-size:16px;max-width:36em}
.intro-points{display:grid;gap:14px}
.intro-point{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 20px;
  box-shadow:var(--sh-card);
  display:flex;gap:14px;align-items:flex-start;
  transition:transform var(--t),box-shadow var(--t);
}
.intro-point:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.intro-point .idx{
  font-size:14px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;flex:0 0 auto;padding-top:2px;
}
.intro-point h3{font-size:16px;margin-bottom:4px}
.intro-point p{font-size:14px;color:var(--ink-2);margin:0}

/* ---------- 精选条目网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px 24px}
.info-card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-100)}
.info-card .thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--brand-50);
}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms cubic-bezier(.2,.6,.3,1)}
.info-card:hover .thumb img{transform:scale(1.03)}
.info-card .tag{
  position:absolute;left:12px;bottom:12px;
  background:rgba(255,255,255,.88);
  color:var(--brand-dark);
  font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;
}
.info-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.info-card h3{font-size:17px;line-height:1.5;margin-bottom:8px}
.info-card h3 a{color:var(--ink)}
.info-card h3 a:hover{color:var(--brand)}
.info-card p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 16px}
.info-card .foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.info-card .foot .bi{color:var(--brand);transition:transform var(--t)}
.info-card:hover .foot .bi{transform:translateX(3px)}

@media (max-width:991.98px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.card-grid{grid-template-columns:1fr;gap:20px}}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--brand-100);
}
.timeline-item{position:relative;padding:0 0 26px 0}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:6px;
  width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.timeline-item h3{font-size:17px;margin-bottom:4px}
.timeline-item .stage{font-size:13px;font-weight:600;color:var(--accent);margin-bottom:4px;display:block}
.timeline-item p{font-size:14px;color:var(--ink-2);margin:0}

.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag-cloud a{
  display:inline-block;
  padding:7px 15px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  color:var(--ink-2);
  transition:all var(--t);
}
.tag-cloud a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-50);transform:translateY(-1px)}

.timeline-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
@media (max-width:991.98px){.timeline-layout{grid-template-columns:1fr;gap:36px}}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
}
.faq-accordion .accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  padding:18px 22px;
  border:0;
  box-shadow:none;
  border-radius:12px;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:#fff;
  color:var(--brand);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 4px var(--brand-100);border:0}
.faq-accordion .accordion-button::after{
  content:"";
  width:10px;height:10px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  background-image:none;
  transform:rotate(45deg);
  margin-left:auto;
  flex:0 0 auto;
  transition:transform var(--t);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq-accordion .accordion-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.faq-wrap{max-width:860px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--brand-50);
  border-top:1px solid var(--brand-100);
  padding:76px 0;
  text-align:center;
}
.cta-band h2{font-size:28px;margin-bottom:12px}
.cta-band p{color:var(--ink-2);font-size:15px;margin-bottom:26px}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
@media (max-width:575.98px){
  .cta-band{padding:52px 0}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(16,25,43,.08);
  padding:10px 16px;
  transform:translateY(0);
  transition:transform var(--t),opacity var(--t);
}
.sticky-cta .sticky-inner{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:12px;
}
.sticky-cta .sticky-text{font-size:14px;font-weight:600;color:var(--ink);flex:1 1 auto}
.sticky-cta .sticky-text .bi{color:var(--brand);margin-right:6px}
.sticky-cta .btn{flex:0 0 auto}
.sticky-cta .sticky-close{
  width:32px;height:32px;flex:0 0 auto;
  border:1px solid var(--line);
  background:#fff;border-radius:8px;
  color:var(--ink-3);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:all var(--t);
}
.sticky-cta .sticky-close:hover{color:var(--brand);border-color:var(--brand-100);background:var(--brand-50)}
.sticky-cta.hidden{transform:translateY(120%);opacity:0;pointer-events:none}

@media (min-width:992px){
  body{padding-bottom:0}
  .sticky-cta{
    left:50%;right:auto;bottom:24px;
    width:720px;
    transform:translate(-50%,140%);
    opacity:0;
    border:1px solid var(--line);
    border-radius:999px;
    padding:12px 20px;
    box-shadow:0 12px 30px rgba(16,25,43,.14);
  }
  .sticky-cta.show{transform:translate(-50%,0);opacity:1}
  .sticky-cta.hidden{transform:translate(-50%,140%);opacity:0}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-dark);
  color:#C9D8F2;
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand .brand-name{color:#fff;font-size:18px;font-weight:700}
.site-footer p{color:#C9D8F2;line-height:1.8;margin-bottom:14px}
.footer-contact{font-size:13px;color:#A9C0E6;line-height:1.9}
.footer-contact span{color:#fff}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:#C9D8F2}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  font-size:13px;color:#A9C0E6;
}
.footer-bottom p{margin:0;font-size:13px;color:#A9C0E6}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:#A9C0E6}
.fb-links a:hover{color:var(--accent)}

@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand:#1657C8;
  --brand-dark:#0F3E8C;
  --brand-light:#2A72E0;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FB;
  --accent:#F97316;
  --accent-dark:#E4660B;
  --ink:#10192B;
  --muted:#566781;
  --faint:#8A98AE;
  --line:#E4EAF3;
  --bg:#F7F9FD;
  --white:#FFFFFF;
  --ok:#12A150;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(16,25,43,.05), 0 6px 20px rgba(16,25,43,.07);
  --sh-hover:0 12px 30px rgba(16,25,43,.12);
  --t:200ms cubic-bezier(.2,.6,.3,1);

  --bs-primary:#1657C8;
  --bs-body-color:#10192B;
  --bs-body-bg:#F7F9FD;
  --bs-border-color:#E4EAF3;
  --bs-border-radius:14px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:16px;
  --bs-link-color:#1657C8;
  --bs-link-hover-color:#F97316;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
@media (min-width:1200px){.container{max-width:1200px}}

/* 通用文本 */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-50);color:var(--brand);
  border:1px solid var(--brand-100);border-radius:999px;
  font-size:13px;font-weight:600;padding:6px 14px;letter-spacing:.02em;
}
.sec-title{font-size:30px;line-height:1.3;margin-bottom:12px}
.sec-sub{font-size:15px;color:var(--muted);max-width:640px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{margin-bottom:42px}
.sec-head.row-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.text-link i{transition:transform var(--t)}
.text-link:hover i{transform:translateX(4px)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all var(--t);white-space:nowrap;
}
.btn-primary-cta{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.22)}
.btn-primary-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(249,115,22,.28)}
.btn-primary-cta:active{transform:translateY(0)}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-outline-brand:hover{background:var(--brand-50);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px)}
.btn-solid-brand{background:var(--brand);color:#fff}
.btn-solid-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand);height:38px;padding:0 16px;font-size:14px;border-radius:999px;border-color:var(--brand-100)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-dark)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-sm{height:36px;padding:0 14px;font-size:13px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.scrolled{box-shadow:0 2px 12px rgba(16,25,43,.06)}
.header-top{
  display:flex;align-items:center;gap:20px;
  height:76px;transition:height var(--t);
}
.site-header.scrolled .header-top{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;flex:0 0 auto}
.brand-name{
  font-size:18px;font-weight:700;color:var(--brand-dark);letter-spacing:.01em;
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--brand)}
.search-box{
  flex:1 1 auto;max-width:520px;position:relative;display:flex;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  height:44px;padding-left:16px;transition:all var(--t);
}
.search-box i{color:var(--faint);font-size:15px}
.search-box input{
  flex:1 1 auto;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink);padding:0 10px;height:100%;
}
.search-box input::placeholder{color:var(--faint)}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.search-box button{
  border:0;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  height:34px;padding:0 18px;border-radius:999px;margin-right:5px;cursor:pointer;
  transition:background var(--t);
}
.search-box button:hover{background:var(--brand-dark)}
.nav-links{display:flex;align-items:center;gap:18px;margin-left:auto;flex:0 0 auto}
.nav-links a{font-size:14px;font-weight:600;color:var(--muted)}
.nav-links a:hover{color:var(--brand)}
.nav-links a.btn-ghost{color:var(--brand)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-dark);font-size:20px;align-items:center;justify-content:center;
  cursor:pointer;margin-left:auto;
}
.menu-toggle:hover{background:var(--brand-50)}
.cat-bar{border-top:1px solid var(--line);background:#fff}
.cat-bar .container{display:flex;align-items:center;gap:6px;height:50px;overflow-x:auto;scrollbar-width:none}
.cat-bar .container::-webkit-scrollbar{display:none}
.cat-pill{
  position:relative;font-size:14px;font-weight:600;color:var(--muted);
  padding:0 14px;height:50px;display:inline-flex;align-items:center;white-space:nowrap;
  transition:color var(--t);
}
.cat-pill::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:transparent;border-radius:2px;transition:background var(--t);
}
.cat-pill:hover{color:var(--brand)}
.cat-pill.active{color:var(--brand);background:var(--brand-50);border-radius:8px 8px 0 0}
.cat-pill.active::after{background:var(--brand)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 20px}
.mobile-panel.open{display:block}
.mobile-panel .search-box{max-width:none;height:48px;margin-bottom:14px}
.mobile-panel a.m-link{
  display:flex;align-items:center;height:48px;font-size:15px;font-weight:600;
  color:var(--muted);border-bottom:1px solid var(--line);padding-left:12px;
}
.mobile-panel a.m-link.active{color:var(--brand);border-left:3px solid var(--brand);padding-left:9px;background:var(--brand-50)}
.mobile-panel .btn{width:100%;margin-top:16px}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0;margin:0;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* Hero */
.cat-hero{
  position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,#FFFFFF 0%,#EEF4FF 78%);
  z-index:0;
}
.cat-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:72px 0 80px}
.hero-copy h1{font-size:40px;line-height:1.25;margin:18px 0 16px}
.hero-copy .lead{font-size:17px;color:var(--muted);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-stats{display:flex;gap:0;flex-wrap:wrap}
.hero-stat{padding-right:32px;margin-right:32px;border-right:1px solid var(--line)}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stat .num{font-size:30px;font-weight:700;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat .num span{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px}
.hero-stat .lbl{font-size:13px;color:var(--faint)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;box-shadow:var(--sh-card);
}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-img);box-shadow:var(--sh-hover);padding:14px 18px;display:flex;gap:12px;align-items:center;
}
.hero-badge i{font-size:22px;color:var(--accent)}
.hero-badge .b-title{font-size:14px;font-weight:700;color:var(--ink)}
.hero-badge .b-sub{font-size:12px;color:var(--faint)}

/* 服务卡 */
.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);transition:all var(--t);
}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-100)}
.svc-icon{
  width:48px;height:48px;border-radius:12px;background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;
  transition:all var(--t);
}
.svc-card:hover .svc-icon{background:var(--brand);color:#fff}
.svc-card h3{font-size:19px;margin:18px 0 10px}
.svc-card p{font-size:14px;color:var(--muted);margin-bottom:16px}
.svc-card.wide{grid-column:span 6;display:flex;gap:24px;align-items:flex-start}
.svc-card.wide .svc-body{flex:1 1 auto}
.svc-card.wide h3{margin-top:0}
.svc-card.wide .svc-icon{width:56px;height:56px;flex:0 0 auto;font-size:24px}
.svc-card.narrow{grid-column:span 3}
.svc-card.third{grid-column:span 4}
.svc-card.wide-wide{grid-column:span 6;display:flex;gap:24px;align-items:flex-start}
.svc-card.wide-wide h3{margin-top:0}
.svc-card.wide-wide .svc-icon{width:56px;height:56px;flex:0 0 auto;font-size:24px}

/* 适用场景 */
.scene-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-item{
  border:1px solid var(--line);border-radius:var(--r-card);padding:22px;background:#fff;
  transition:all var(--t);
}
.scene-item:hover{border-color:var(--brand-100);box-shadow:var(--sh-card);transform:translateY(-3px)}
.scene-item .s-idx{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.scene-item h3{font-size:16px;margin:10px 0 8px}
.scene-item p{font-size:13.5px;color:var(--muted);margin:0}

/* 流程（深色） */
.flow-wrap{background:var(--brand-dark);color:#C9D8F2}
.flow-wrap .sec-title{color:#fff}
.flow-wrap .sec-sub{color:#C9D8F2}
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;margin-top:12px}
.flow-list::before{
  content:"";position:absolute;top:22px;left:2%;right:2%;height:2px;
  background:rgba(201,216,242,.28);z-index:0;
}
.flow-item{position:relative;z-index:1}
.flow-num{
  width:44px;height:44px;border-radius:50%;background:#fff;color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:18px;
}
.flow-item h3{font-size:17px;color:#fff;margin-bottom:8px}
.flow-item p{font-size:14px;color:#C9D8F2;margin:0}

/* 对比表 */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:#fff}
table.compare{width:100%;min-width:660px;border-collapse:collapse;font-size:14.5px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.compare thead th{background:var(--brand-50);color:var(--brand-dark);font-size:14px;font-weight:700}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:#FAFCFF}
table.compare td:first-child{font-weight:600;color:var(--ink);width:26%}
table.compare td:nth-child(2){color:var(--muted)}
table.compare td:nth-child(3){color:var(--brand-dark)}
table.compare i.tick{color:var(--ok);margin-right:6px}

/* 保障数据条 */
.stats-band{
  background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-card);
  padding:36px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-cell .num{font-size:38px;font-weight:700;color:var(--brand-dark);line-height:1.15;font-variant-numeric:tabular-nums}
.stat-cell .num span{font-size:16px;color:var(--muted);margin-left:4px;font-weight:600}
.stat-cell .lbl{font-size:14px;color:var(--muted);margin-top:6px}

/* FAQ */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;
}
.faq-accordion .accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;padding:20px 24px;
  box-shadow:none;border-left:3px solid transparent;transition:all var(--t);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-50);border-left-color:var(--brand)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 4px var(--brand-100);z-index:2}
.faq-accordion .accordion-button::after{
  background-image:none;
  content:"\F282";font-family:"bootstrap-icons";font-size:15px;color:var(--faint);
  width:auto;height:auto;transform:rotate(0deg);transition:transform var(--t);
}
.faq-accordion .accordion-button:not(.collapsed)::after{color:var(--brand);transform:rotate(180deg)}
.faq-accordion .accordion-body{font-size:15px;color:var(--muted);line-height:1.8;padding:4px 24px 22px}

/* 底部 CTA */
.cta-band{background:var(--brand-50);border-top:1px solid var(--brand-100);padding:88px 0;text-align:center}
.cta-band h2{font-size:30px;margin-bottom:14px}
.cta-band p{font-size:16px;color:var(--muted);max-width:34em;margin:0 auto 30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:#C9D8F2;padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:#fff;white-space:nowrap}
.site-footer p{color:#C9D8F2;font-size:14px;line-height:1.8}
.footer-contact{margin-top:16px;font-size:13.5px;color:#9DB6E4;line-height:2}
.footer-contact span{color:#fff}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#C9D8F2;font-size:14px}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(201,216,242,.2);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#9DB6E4;margin:0}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:#9DB6E4}
.fb-links a:hover{color:var(--accent)}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:36px}
  .hero-copy h1{font-size:36px}
}
@media (max-width:991px){
  .nav-links,.search-box.desk{display:none}
  .menu-toggle{display:flex}
  .header-top{height:64px}
  .site-header.scrolled .header-top{height:60px}
  .hero-grid{grid-template-columns:1fr;padding:48px 0 56px;gap:32px}
  .hero-figure{order:2}
  .hero-copy h1{font-size:30px}
  .hero-badge{left:12px;bottom:12px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .svc-card.wide,.svc-card.wide-wide{grid-column:span 12}
  .svc-card.narrow{grid-column:span 6}
  .svc-card.third{grid-column:span 6}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow-list{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow-list::before{display:none}
  .stats-band{grid-template-columns:repeat(2,1fr);padding:28px 24px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  body{font-size:15px}
  .container{padding-left:20px;padding-right:20px}
  .brand-name{font-size:16px}
  .hero-copy h1{font-size:28px}
  .hero-copy .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-stat{padding-right:20px;margin-right:20px}
  .hero-badge{padding:10px 14px}
  .sec-title{font-size:22px}
  .section{padding:48px 0}
  .section-tight{padding:48px 0}
  .svc-card.narrow,.svc-card.third{grid-column:span 12}
  .svc-card.wide,.svc-card.wide-wide{flex-direction:column;gap:16px}
  .scene-grid{grid-template-columns:1fr}
  .flow-list{grid-template-columns:1fr;gap:28px}
  .stats-band{grid-template-columns:1fr}
  .stat-cell .num{font-size:32px}
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand:#1657C8;
  --brand-dark:#0F3E8C;
  --brand-light:#2A72E0;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FB;
  --accent:#F97316;
  --accent-dark:#E2660B;
  --ink:#10192B;
  --ink-2:#566781;
  --ink-3:#8A98AE;
  --line:#E4EAF3;
  --page:#F7F9FD;
  --white:#FFFFFF;
  --ok:#12A150;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(16,25,43,.05), 0 6px 20px rgba(16,25,43,.07);
  --sh-hover:0 12px 30px rgba(16,25,43,.12);
  --sh-nav:0 2px 12px rgba(16,25,43,.06);
  --ease:cubic-bezier(.2,.6,.3,1);
  --bs-primary:#1657C8;
  --bs-primary-rgb:22,87,200;
  --bs-body-color:#10192B;
  --bs-body-bg:#F7F9FD;
  --bs-border-color:#E4EAF3;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-border-radius-lg:14px;
  --bs-link-color:#1657C8;
  --bs-link-hover-color:#F97316;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{padding-left:0;margin:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-solid{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(22,87,200,.22)}
.btn-solid:hover{background:#1348AC;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(22,87,200,.28)}
.btn-solid:active{transform:translateY(0);background:#0F3E8C}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.24)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(249,115,22,.3)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-100)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:var(--brand-100)}
.btn-text{background:transparent;color:var(--brand);padding:0 6px;height:auto;font-size:15px}
.btn-text:hover{color:var(--accent);transform:none}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height .2s var(--ease)}
.site-header.scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--brand)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-search{flex:1 1 auto;max-width:560px;margin:0 auto;position:relative;display:flex;align-items:center}
.nav-search .bi-search{position:absolute;left:16px;font-size:16px;color:var(--ink-3);pointer-events:none}
.nav-search input[type="search"]{
  width:100%;height:46px;border:1px solid var(--line);background:#fff;
  border-radius:999px;padding:0 118px 0 42px;font-size:15px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search input[type="search"]::placeholder{color:var(--ink-3)}
.nav-search input[type="search"]:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.nav-search .search-btn{
  position:absolute;right:5px;height:36px;padding:0 20px;border:none;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s var(--ease),transform .18s var(--ease);
}
.nav-search .search-btn:hover{background:#1348AC}
.nav-search .search-btn:active{transform:scale(.98)}
.nav-links{display:flex;align-items:center;gap:4px;flex:0 0 auto}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-links a:hover{background:var(--brand-50);color:var(--brand)}
.nav-links a.active{background:var(--brand-50);color:var(--brand);font-weight:600}
.nav-links a.btn{color:#fff}
.nav-links a.btn:hover{background:var(--brand-50);color:var(--brand)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);cursor:pointer;
  margin-left:auto;
}
.nav-toggle:hover{background:var(--brand-50);color:var(--brand)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px}
.mobile-panel.open{display:block}
.mobile-panel .m-search{position:relative;display:flex;align-items:center;margin-bottom:14px}
.mobile-panel .m-search .bi-search{position:absolute;left:16px;color:var(--ink-3)}
.mobile-panel .m-search input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:999px;
  padding:0 96px 0 42px;font-size:15px;
}
.mobile-panel .m-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100)}
.mobile-panel .m-search button{
  position:absolute;right:5px;height:38px;padding:0 18px;border:none;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
}
.mobile-panel nav{display:flex;flex-direction:column}
.mobile-panel nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;font-size:15px;
  color:var(--ink-2);border-left:3px solid transparent;border-radius:8px;
}
.mobile-panel nav a.active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-50)}
.mobile-panel nav a:hover{background:var(--brand-50);color:var(--brand)}

@media (max-width:1199.98px){
  .nav-links a{font-size:14px;padding:0 10px}
  .nav-search{max-width:420px}
}
@media (max-width:991.98px){
  .nav-search,.nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
}

/* ============ 面包屑 ============ */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:14px;color:var(--ink-2)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3)}
.crumb .now{color:var(--brand);font-weight:600}

/* ============ HERO ============ */
.hero-help{
  position:relative;overflow:hidden;
  background:linear-gradient(115deg,#FFFFFF 0%,#F4F8FF 48%,var(--brand-50) 100%);
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.hero-help::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle at center,rgba(22,87,200,.10),rgba(22,87,200,0) 68%);
  border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-50);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-help h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.4px}
.hero-help h1 .hl{color:var(--brand)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:36em}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-facts{display:flex;gap:0;margin-top:32px;flex-wrap:wrap}
.hero-facts .fact{padding:0 20px;border-left:1px solid var(--line)}
.hero-facts .fact:first-child{padding-left:0;border-left:none}
.hero-facts .num{display:block;font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-facts .lbl{font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-visual .shot{
  border-radius:16px;overflow:hidden;box-shadow:var(--sh-card);border:1px solid var(--line);background:#fff;
  aspect-ratio:4/3;
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover}
.hero-badge{
  position:absolute;left:-14px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--sh-card);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.hero-badge .ico{
  width:38px;height:38px;border-radius:10px;background:var(--brand-50);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.hero-badge .t1{font-size:14px;font-weight:700;color:var(--ink);line-height:1.4}
.hero-badge .t2{font-size:12px;color:var(--ink-3);line-height:1.4}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-help{padding:48px 0 44px}
  .hero-help h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-badge{position:static;margin-top:16px;left:0;bottom:0}
}
@media (max-width:575.98px){
  .hero-help h1{font-size:27px}
  .hero-actions .btn{width:100%}
  .hero-facts .fact{padding:0 14px}
  .hero-facts .fact:nth-child(3){padding-left:0;border-left:none;margin-top:14px}
  .hero-facts{row-gap:14px}
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag-label{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-50);border-radius:6px;padding:2px 10px;margin-bottom:14px;
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-head h2{font-size:24px}
}
@media (max-width:575.98px){
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .section-head{margin-bottom:28px}
}

/* ============ 目录小卡 ============ */
.dir-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.dir-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.dir-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-100)}
.dir-card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--brand-50);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.dir-card:hover .ico{background:var(--brand);color:#fff}
.dir-card h3{font-size:17px;font-weight:600;line-height:1.5}
.dir-card p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.7}
.dir-card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand)}
.dir-card .more i{font-size:13px;transition:transform .18s var(--ease)}
.dir-card:hover .more i{transform:translateX(3px)}
@media (max-width:1199.98px){.dir-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:991.98px){.dir-grid{grid-template-columns:repeat(2,1fr);gap:18px}}
@media (max-width:575.98px){.dir-grid{grid-template-columns:1fr}}

/* ============ FAQ ============ */
.faq-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:100px}
.faq-aside .box{
  background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-card);padding:24px;
}
.faq-aside .box h3{font-size:16px;font-weight:700;color:var(--brand-dark)}
.faq-aside .box p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}
.faq-aside .box ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.faq-aside .box li a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--brand)}
.faq-aside .box li a i{font-size:12px}
.faq-aside .box li a:hover{color:var(--accent)}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:var(--brand-100);box-shadow:0 6px 18px rgba(16,25,43,.06)}
.faq-accordion .accordion-button{
  position:relative;width:100%;background:#fff;border:none;box-shadow:none;
  padding:18px 56px 18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  text-align:left;line-height:1.6;border-left:3px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.faq-accordion .accordion-button:hover{color:var(--brand);background:#FBFCFE}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);border-left-color:var(--brand);background:#fff;
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:24px;top:calc(50% - 7px);
  width:9px;height:9px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform .2s var(--ease),border-color .2s var(--ease);
  background-image:none;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);border-color:var(--brand);margin-top:-3px;
}
.faq-accordion .accordion-body{
  padding:0 22px 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
@media (max-width:991.98px){
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
}

/* ============ 联系表单 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.contact-side h2{font-size:30px;font-weight:700;line-height:1.3}
.contact-side p.lead{margin-top:14px;font-size:16px;color:var(--ink-2)}
.contact-side ul{margin-top:26px;display:flex;flex-direction:column;gap:16px}
.contact-side li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.contact-side li i{color:var(--brand);font-size:17px;margin-top:4px}
.contact-side .mini{margin-top:28px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);aspect-ratio:16/9}
.contact-side .mini img{width:100%;height:100%;object-fit:cover}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-card);
}
.form-card h3{font-size:20px;font-weight:700}
.form-card .hint{margin-top:8px;font-size:14px;color:var(--ink-3)}
.f-row{margin-top:20px}
.f-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.f-row label .req{color:var(--accent);margin-left:2px}
.f-row input,.f-row select,.f-row textarea{
  width:100%;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.f-row textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.f-row input::placeholder,.f-row textarea::placeholder{color:var(--ink-3)}
.f-row input:focus,.f-row select:focus,.f-row textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-100);
}
.f-row .err{display:none;margin-top:6px;font-size:13px;color:#D92D20}
.f-row.has-err input,.f-row.has-err select,.f-row.has-err textarea{border-color:#D92D20}
.f-row.has-err .err{display:block}
.form-foot{margin-top:24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-privacy{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
.form-ok{
  display:none;margin-top:18px;padding:14px 16px;border-radius:10px;font-size:14px;
  background:#EAF8F1;color:#0B7A3E;border:1px solid #BEE7D1;
}
.form-ok.show{display:block}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:991.98px){
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .contact-side h2{font-size:24px}
}
@media (max-width:575.98px){
  .two-col{grid-template-columns:1fr;gap:20px}
  .form-card{padding:22px}
  .form-foot .btn{width:100%}
}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--brand-50);padding:80px 0}
.cta-band .inner{max-width:720px;margin:0 auto;text-align:center}
.cta-band h2{font-size:28px;font-weight:700}
.cta-band p{margin-top:14px;font-size:16px;color:var(--ink-2)}
.cta-band .acts{margin-top:28px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media (max-width:575.98px){
  .cta-band{padding:52px 0}
  .cta-band h2{font-size:22px}
  .cta-band .acts .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#C9D8F2;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand .brand-name{color:#fff;font-size:18px;font-weight:700;letter-spacing:.2px}
.site-footer p{font-size:14px;line-height:1.85;color:#C9D8F2}
.footer-contact{margin-top:16px;font-size:14px;line-height:2;color:#C9D8F2}
.footer-contact span{color:#fff}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#C9D8F2}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#A9BFE6}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:#C9D8F2}
.fb-links a:hover{color:var(--accent)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ============ 底部固定转化条 ============ */
.convert-bar{
  position:fixed;left:50%;bottom:16px;z-index:1200;
  width:min(720px,calc(100% - 32px));
  background:#fff;border:1px solid var(--line);border-radius:999px;
  box-shadow:0 12px 30px rgba(16,25,43,.14);
  display:flex;align-items:center;gap:14px;padding:10px 12px 10px 22px;
  transform:translateX(-50%) translateY(150%);
  transition:transform .28s var(--ease),opacity .28s var(--ease);
  opacity:0;
}
.convert-bar.show{transform:translateX(-50%) translateY(0);opacity:1}
.convert-bar .cb-ico{
  width:36px;height:36px;border-radius:50%;background:var(--brand-50);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
}
.convert-bar .cb-text{font-size:14px;color:var(--ink-2);flex:1 1 auto;line-height:1.5}
.convert-bar .cb-close{
  width:32px;height:32px;border:none;background:transparent;color:var(--ink-3);
  font-size:20px;line-height:1;cursor:pointer;border-radius:50%;flex:0 0 auto;
}
.convert-bar .cb-close:hover{background:var(--brand-50);color:var(--brand)}
@media (max-width:991.98px){
  body{padding-bottom:96px}
  .convert-bar{
    width:calc(100% - 20px);bottom:10px;padding:10px 12px 10px 16px;
    transform:translateX(-50%) translateY(0);opacity:1;
  }
  .convert-bar.show{transform:translateX(-50%) translateY(0)}
  .convert-bar .cb-close{display:none}
  .convert-bar .cb-text{font-size:13px}
}