/* roulang page: index */
:root{
  --brand:#1652A6;
  --brand-deep:#0F3A78;
  --brand-soft:#E8F0FB;
  --accent:#F08A2E;
  --status:#2E9E6B;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --line:#E6EAF0;
  --ink:#1B2530;
  --muted:#5A6675;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(16,42,80,.06);
  --sh-md:0 6px 18px rgba(16,42,80,.08);
  --sh-lg:0 16px 36px rgba(16,42,80,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sec{padding:96px 0}
.sec-alt{background:#EEF4FC}
.sec-line{border-top:1px solid var(--line)}
[id]{scroll-margin-top:88px}

.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.sec-title{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3}
.sec-title::before{content:"";display:inline-block;width:4px;height:22px;border-radius:2px;background:var(--brand);margin-right:12px;vertical-align:-2px}
.sec-desc{max-width:720px;color:var(--muted);font-size:15px;line-height:1.8;margin-top:12px}
.text-link{color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s,color .2s}
.text-link:hover{border-color:var(--brand)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.nav-inner{display:flex;align-items:center;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));display:grid;place-items:center;box-shadow:var(--sh-sm)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;font-size:14.5px;font-weight:500;color:var(--ink);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .25s ease}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-cta{margin-left:6px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:12px 22px;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-sm)}
.btn-accent:hover{background:#dd7a20;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(22,82,166,.35)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

.hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0;place-items:center;margin-left:auto}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);margin:0 auto 5px;border-radius:2px}
.hamburger span:last-child{margin-bottom:0}

.drawer{position:fixed;inset:0;z-index:80;pointer-events:none}
.drawer-panel{position:absolute;top:0;right:0;width:84vw;max-width:360px;height:100%;background:#fff;border-radius:16px 0 0 16px;padding:24px;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;gap:6px;box-shadow:var(--sh-lg);overflow-y:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(16,42,80,.35);opacity:0;transition:opacity .3s ease}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;display:grid;place-items:center;margin-left:auto}
.drawer-link{padding:13px 12px;border-radius:10px;font-size:15px;font-weight:500;border-bottom:1px solid var(--line)}
.drawer-link:hover,.drawer-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-contact{margin-top:auto;padding-top:18px;font-size:13px;color:var(--muted);line-height:1.9}

/* Hero */
.hero{position:relative;background:linear-gradient(160deg,#F5F7FA 0%,#EEF4FC 62%,#E8F0FB 100%);overflow:hidden}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:80px;padding-bottom:104px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-badge);padding:6px 12px;letter-spacing:.02em}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;margin-top:20px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);margin-top:18px;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px}
.trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.trust i{width:7px;height:7px;border-radius:50%;background:var(--status);display:block}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;box-shadow:var(--sh-lg);background:var(--brand-soft)}
.hero-chip{position:absolute;left:-18px;bottom:-22px;background:#fff;border-radius:14px;box-shadow:var(--sh-md);padding:16px 20px;min-width:170px}
.hero-chip strong{display:block;font-size:28px;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-chip span{font-size:13px;color:var(--muted)}
.hero-wave{position:absolute;left:0;right:0;bottom:-1px;height:26px;background:#F5F7FA;clip-path:polygon(0 100%,100% 0,100% 100%)}

/* 卡片通用 */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.card h3{font-size:19px;font-weight:600;line-height:1.4}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-top:10px}
.card-icon{width:44px;height:44px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:16px}

.bento-main{display:grid;gap:24px;grid-template-columns:2fr 1fr;align-items:stretch}
.bento-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm);background:var(--brand-soft)}
.bento-sub{display:grid;gap:24px;grid-template-rows:1fr 1fr}

.statbar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);margin-top:24px;overflow:hidden}
.stat{padding:26px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat .num{display:block;font-size:34px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat .lbl{font-size:13px;color:var(--muted);margin-top:6px;display:block}

/* 演示 */
.demo-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.demo-tab{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:9px 20px;font-size:14px;font-weight:500;transition:all .2s ease}
.demo-tab:hover{border-color:rgba(22,82,166,.35);color:var(--brand)}
.demo-tab.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.demo-pane{display:none}
.demo-pane.is-active{display:block;animation:fadeUp .32s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.shot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.shot{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:14px;transition:transform .22s ease,box-shadow .22s ease}
.shot:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm);background:var(--brand-soft)}
.shot h3{font-size:16px;font-weight:600;margin-top:14px}
.shot p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-top:6px}

/* 证据 */
.logo-strip{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.logo-strip li{font-size:13.5px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:var(--r-badge);padding:9px 16px;transition:all .2s ease}
.logo-strip li:hover{color:var(--brand);border-color:rgba(22,82,166,.3);background:var(--brand-soft)}
.case-card{display:grid;grid-template-columns:44% 56%;gap:0;overflow:hidden;padding:0}
.case-card img{width:100%;height:100%;min-height:230px;object-fit:cover;background:var(--brand-soft)}
.case-body{padding:28px}
.case-body h3{font-size:20px;font-weight:600}
.case-body p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-top:12px}
.case-body .text-link{display:inline-block;margin-top:16px}
.data-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.data-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:24px}
.data-card .num{font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.data-card .cap{font-size:13.5px;color:var(--muted);margin-top:8px}
.bar{height:8px;border-radius:999px;background:var(--brand-soft);overflow:hidden;margin-top:14px}
.bar span{display:block;height:100%;background:var(--brand);border-radius:999px}

/* 最新信息 */
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.news-card:hover h3{color:var(--brand)}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--brand-soft)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-badge);padding:4px 10px;align-self:flex-start}
.news-body h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.news-meta time{font-variant-numeric:tabular-nums}
.news-meta span{color:var(--brand);font-weight:600}
.empty-state{grid-column:1/-1;min-height:240px;border:1px dashed var(--line);border-radius:var(--r-card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:32px;background:#fff}
.empty-state .ico{width:48px;height:48px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:20px}
.empty-state strong{font-size:15px;font-weight:600}
.empty-state small{font-size:13px;color:var(--muted)}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:28px;transition:transform .22s ease,box-shadow .22s ease}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.price-card.is-featured{border:2px solid var(--brand);box-shadow:var(--sh-md);transform:translateY(-8px)}
.price-card.is-featured:hover{transform:translateY(-12px)}
.price-badge{position:absolute;top:-13px;left:28px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:5px 14px}
.price-card h3{font-size:18px;font-weight:600}
.price-tag{display:flex;align-items:baseline;gap:6px;margin-top:16px}
.price-tag strong{font-size:32px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.price-tag span{font-size:13px;color:var(--muted)}
.price-list{margin-top:20px;display:grid;gap:10px}
.price-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.75}
.price-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:9px;flex-shrink:0}
.price-card .btn{width:100%;margin-top:24px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:box-shadow .2s ease}
.faq-item.is-open{box-shadow:var(--sh-sm)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;padding:18px 20px;font-size:16px;font-weight:600;text-align:left;color:var(--ink)}
.faq-q:hover{color:var(--brand)}
.faq-q i{flex-shrink:0;width:24px;height:24px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-style:normal;font-size:15px;transition:transform .25s ease,background-color .25s ease,color .25s ease}
.faq-item.is-open .faq-q i{transform:rotate(90deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{max-width:720px;padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* CTA 条 */
.cta-band{background:var(--brand-deep);color:#fff;border-radius:20px;padding:48px;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center;box-shadow:var(--sh-lg)}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35}
.cta-band p{font-size:15px;color:rgba(255,255,255,.82);line-height:1.85;margin-top:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.8);margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding:64px 0 40px}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.9}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.8);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--accent);transform:translateX(3px)}
.footer-form{display:grid;gap:10px;margin-top:6px}
.footer-form input{width:100%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:10px;padding:12px 14px;color:#fff;font-size:14px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease}
.footer-form input::placeholder{color:rgba(255,255,255,.5)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,138,46,.22)}
.footer-form button{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 16px;font-size:14.5px;font-weight:600;transition:background-color .2s ease,transform .2s ease}
.footer-form button:hover{background:#dd7a20;transform:translateY(-1px)}
.footer-note{font-size:12px;color:rgba(255,255,255,.55);line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--accent)}
.top-btn{border:1px solid rgba(255,255,255,.25);background:transparent;color:rgba(255,255,255,.85);border-radius:10px;padding:8px 16px;font-size:13px;transition:all .2s ease}
.top-btn:hover{border-color:var(--accent);color:var(--accent)}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:24px;bottom:calc(24px + env(safe-area-inset-bottom));z-index:70;display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;border-radius:999px;padding:14px 22px;font-size:14.5px;font-weight:600;box-shadow:var(--sh-lg);opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .2s ease,transform .2s ease}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:#dd7a20}

@media (max-width:1023px){
  .wrap{padding:0 24px}
  .sec{padding:72px 0}
  .nav-links{display:none}
  .hamburger{display:grid}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:80px}
  .hero-media{order:-1}
  .hero-chip{left:auto;right:16px;bottom:-18px}
  .bento-main{grid-template-columns:1fr}
  .bento-sub{grid-template-rows:auto}
  .statbar{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:none}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .shot-grid{grid-template-columns:1fr}
  .case-card{grid-template-columns:1fr}
  .case-card img{min-height:200px}
  .data-cards{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-4px)}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .sec{padding:56px 0}
  .card{padding:20px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .statbar{grid-template-columns:1fr}
  .stat{border-right:none;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 28px}
  .float-cta{right:16px;padding:0;width:56px;height:56px;justify-content:center}
  .float-cta span{display:none}
}

/* roulang page: article */
:root{
    --brand:#1652A6;
    --brand-deep:#0F3A78;
    --brand-soft:#E8F0FB;
    --accent:#F08A2E;
    --accent-deep:#D9741D;
    --status:#2E9E6B;
    --bg:#F5F7FA;
    --surface:#FFFFFF;
    --line:#E6EAF0;
    --ink:#1B2530;
    --muted:#5A6675;
    --r-card:16px;
    --r-sm:12px;
    --r-btn:10px;
    --r-badge:6px;
    --sh-sm:0 1px 2px rgba(16,42,80,.06);
    --sh-md:0 6px 18px rgba(16,42,80,.08);
    --sh-lg:0 16px 36px rgba(16,42,80,.12);
    --wrap:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;object-fit:cover}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;cursor:pointer}
  h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;line-height:1.3}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- 阅读进度条 ---------- */
  .read-bar{
    position:fixed;top:0;left:0;height:2px;width:0;
    background:linear-gradient(90deg,var(--brand),var(--accent));
    z-index:120;transition:width .12s linear;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:100;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--sh-md)}
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:24px;height:72px;
    max-width:var(--wrap);margin:0 auto;padding:0 32px;
    transition:height .25s ease;
  }
  .site-header.is-scrolled .header-inner{height:64px}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:34px;height:34px;border-radius:999px;
    background:linear-gradient(135deg,var(--brand),#2D74D0);
    display:flex;align-items:center;justify-content:center;
    box-shadow:var(--sh-sm);
  }
  .logo-mark svg{width:19px;height:19px}
  .logo-text{
    font-size:17px;font-weight:700;color:var(--brand-deep);
    letter-spacing:.01em;white-space:nowrap;
  }
  .nav-links{display:flex;align-items:center;gap:26px}
  .nav-link{
    position:relative;font-size:14.5px;font-weight:500;color:var(--ink);
    padding:6px 0;white-space:nowrap;transition:color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
    background:var(--brand);transition:width .25s ease;
  }
  .nav-link:hover{color:var(--brand)}
  .nav-link:hover::after{width:100%}
  .nav-link.is-active{color:var(--brand);font-weight:600}
  .nav-link.is-active::after{width:100%}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-btn);font-size:14.5px;font-weight:600;
    padding:11px 22px;border:1px solid transparent;
    transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .15s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(240,138,46,.28)}
  .btn-accent:hover{background:var(--accent-deep);transform:translateY(-1px);color:#fff}
  .btn-accent:active{transform:translateY(1px);box-shadow:none}
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);color:#fff}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:#fff;color:var(--brand);border-color:rgba(22,82,166,.35)}
  .btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
  .btn-sm{padding:9px 18px;font-size:14px}
  .btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
    outline:2px solid var(--brand);outline-offset:2px;
  }
  .nav-toggle{
    display:none;width:40px;height:40px;border:1px solid var(--line);
    background:#fff;border-radius:10px;padding:0;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
  .nav-drawer{
    position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
    background:#fff;border-radius:16px 0 0 16px;box-shadow:var(--sh-lg);
    transform:translateX(105%);transition:transform .3s ease;z-index:130;
    padding:26px 22px;overflow-y:auto;
  }
  .nav-drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .drawer-title{font-size:15px;font-weight:700;color:var(--brand-deep)}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
    background:#fff;font-size:16px;color:var(--muted);
  }
  .drawer-links{display:flex;flex-direction:column;gap:2px}
  .drawer-links a{
    padding:13px 12px;border-radius:10px;font-size:15px;color:var(--ink);
    border-left:3px solid transparent;transition:.2s;
  }
  .drawer-links a:hover,.drawer-links a.is-active{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand)}
  .drawer-cta{margin-top:18px;width:100%}
  .drawer-contact{margin-top:22px;font-size:13px;color:var(--muted);line-height:1.9}
  .mask{
    position:fixed;inset:0;background:rgba(15,58,120,.35);
    opacity:0;visibility:hidden;transition:.25s;z-index:125;
  }
  .mask.is-open{opacity:1;visibility:visible}

  /* ---------- 面包屑与文章头 ---------- */
  .article-top{
    background:linear-gradient(180deg,#FFFFFF 0%,#EEF4FC 100%);
    border-bottom:1px solid var(--line);
    padding:34px 0 46px;
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
  .breadcrumb a{color:var(--muted);transition:color .2s}
  .breadcrumb a:hover{color:var(--brand);text-decoration:underline}
  .breadcrumb .sep{color:#B6C0CD}
  .breadcrumb .current{color:var(--brand);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .kicker{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--brand-soft);color:var(--brand);
    font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);
    margin-bottom:16px;
  }
  .kicker i{width:6px;height:6px;border-radius:999px;background:var(--accent);display:block}
  .article-top h1{
    font-size:clamp(28px,3.6vw,42px);
    font-weight:700;line-height:1.28;color:var(--ink);
    max-width:960px;letter-spacing:-0.015em;
  }
  .article-lead{
    margin-top:18px;max-width:820px;font-size:16.5px;color:var(--muted);line-height:1.85;
  }
  .meta-bar{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
    margin-top:24px;font-size:13.5px;color:var(--muted);
  }
  .meta-bar .dot{width:5px;height:5px;border-radius:999px;background:#C3CEDA;display:inline-block;margin-right:8px;vertical-align:middle}
  .meta-bar a{color:var(--brand);font-weight:600}
  .meta-bar a:hover{text-decoration:underline}
  .badge-status{
    display:inline-flex;align-items:center;gap:6px;
    background:rgba(46,158,107,.12);color:var(--status);
    font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
  }
  .badge-status i{width:6px;height:6px;border-radius:999px;background:var(--status);display:block}

  /* ---------- 两栏主体 ---------- */
  .article-main{padding:56px 0 72px}
  .layout{
    display:grid;grid-template-columns:minmax(0,1fr) 328px;
    gap:44px;align-items:start;
  }
  .article-card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-sm);
    padding:38px 40px 44px;
  }
  .cover-figure{margin:0 0 30px;border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--sh-sm);background:var(--brand-soft)}
  .cover-figure img{width:100%;aspect-ratio:16/9;border-radius:var(--r-sm)}

  /* 正文排版 */
  .article-body{max-width:780px;font-size:16px;line-height:1.85;color:var(--ink)}
  .article-body > *:first-child{margin-top:0}
  .article-body p{margin:0 0 18px}
  .article-body h2{
    position:relative;font-size:24px;font-weight:700;line-height:1.35;
    margin:44px 0 16px;padding-left:16px;color:var(--ink);
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
    border-radius:3px;background:var(--brand);
  }
  .article-body h3{font-size:19px;font-weight:600;margin:32px 0 12px;color:var(--ink)}
  .article-body h4{font-size:16.5px;font-weight:600;margin:24px 0 10px}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
  .article-body ul{list-style:disc}
  .article-body ol{list-style:decimal}
  .article-body li{margin-bottom:8px;line-height:1.8}
  .article-body li::marker{color:var(--brand)}
  .article-body a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px}
  .article-body a:hover{color:var(--accent)}
  .article-body img{border-radius:var(--r-sm);box-shadow:var(--sh-sm);margin:22px 0 8px}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-bottom:22px}
  .article-body blockquote{
    margin:24px 0;padding:18px 22px;background:var(--brand-soft);
    border-left:4px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
    color:#2B3A4B;font-size:15.5px;line-height:1.85;
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body table{
    width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;
    display:block;overflow-x:auto;white-space:nowrap;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
  .article-body th{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
  .article-body strong{font-weight:600;color:var(--brand-deep)}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

  /* 空态 */
  .empty-state{
    min-height:240px;border:1px dashed var(--line);border-radius:var(--r-card);
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    text-align:center;padding:40px 24px;background:#FBFCFE;
  }
  .empty-icon{
    width:48px;height:48px;border-radius:999px;background:var(--brand-soft);
    display:flex;align-items:center;justify-content:center;color:var(--brand);
    font-size:20px;font-weight:700;margin-bottom:14px;
  }
  .empty-state h3{font-size:16px;font-weight:600;margin-bottom:6px}
  .empty-state p{font-size:13.5px;color:var(--muted);margin-bottom:18px}

  /* 文末标签 */
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
  .tag{
    display:inline-block;font-size:12.5px;padding:5px 12px;border-radius:var(--r-badge);
    background:var(--brand-soft);color:var(--brand);font-weight:500;transition:.2s;
  }
  .tag:hover{background:var(--brand);color:#fff}

  /* 上/下一篇 */
  .pager{
    display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px;
  }
  .pager a{
    display:block;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-sm);padding:18px 20px;box-shadow:var(--sh-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .pager a:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
  .pager .pager-label{font-size:12px;color:var(--muted);letter-spacing:.06em;display:block;margin-bottom:6px}
  .pager .pager-title{font-size:15px;font-weight:600;color:var(--ink)}
  .pager a:hover .pager-title{color:var(--brand)}
  .pager .right{text-align:right}

  /* ---------- 侧栏 ---------- */
  .aside-card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-sm);
    padding:22px 22px 24px;margin-bottom:20px;
  }
  .aside-card.is-sticky{position:sticky;top:92px}
  .aside-title{
    font-size:15px;font-weight:700;color:var(--brand-deep);
    padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
    display:flex;align-items:center;gap:8px;
  }
  .aside-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--accent)}
  .aside-list li + li{margin-top:2px}
  .aside-list a{
    display:block;font-size:14px;color:var(--muted);padding:9px 10px;
    border-radius:8px;border-left:3px solid transparent;transition:.2s;
  }
  .aside-list a:hover{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand)}
  .aside-cta{background:linear-gradient(160deg,#0F3A78,#1652A6);border-color:transparent;color:#fff}
  .aside-cta h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:10px}
  .aside-cta p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.82);margin-bottom:18px}
  .aside-cta .btn{width:100%}

  /* ---------- 相关推荐 ---------- */
  .section{padding:72px 0}
  .section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{
    display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
    gap:14px;margin-bottom:34px;
  }
  .section-head h2{font-size:clamp(24px,2.6vw,30px);font-weight:700}
  .section-head p{margin-top:8px;font-size:14.5px;color:var(--muted)}
  .more-link{font-size:14px;font-weight:600;color:var(--brand);transition:.2s}
  .more-link:hover{color:var(--accent);text-decoration:underline}
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .post-card{
    display:flex;flex-direction:column;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--sh-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
  .post-card .thumb{width:100%;aspect-ratio:16/9;background:var(--brand-soft)}
  .post-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
  .post-card .cat{
    align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);
    background:var(--brand-soft);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:12px;
  }
  .post-card h3{
    font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:10px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    transition:color .2s;
  }
  .post-card:hover h3{color:var(--brand)}
  .post-card p{
    font-size:13.5px;color:var(--muted);line-height:1.75;margin-bottom:16px;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card .foot{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;
    font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;
  }
  .post-card .foot .go{color:var(--brand);font-weight:600}

  /* ---------- 返回栏目 / CTA 条 ---------- */
  .back-band{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
    gap:20px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:26px 30px;
  }
  .back-band h3{font-size:18px;font-weight:700;margin-bottom:6px}
  .back-band p{font-size:14px;color:var(--muted)}
  .cta-band{
    margin-top:34px;border-radius:var(--r-card);overflow:hidden;position:relative;
    background:linear-gradient(160deg,#0F3A78,#1652A6);color:#fff;
    padding:44px 40px;display:flex;flex-wrap:wrap;align-items:center;
    justify-content:space-between;gap:24px;box-shadow:var(--sh-lg);
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
    border-radius:999px;background:rgba(240,138,46,.22);
  }
  .cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;position:relative;z-index:1}
  .cta-band p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.85);max-width:620px;position:relative;z-index:1}
  .cta-band .actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
  .cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
  .cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-deep);color:rgba(255,255,255,.8);margin-top:0}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
    padding:64px 0 44px;
  }
  .site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
  .site-footer p{font-size:13.5px;line-height:1.9}
  .footer-links{display:flex;flex-direction:column;gap:9px}
  .footer-links a{font-size:13.5px;color:rgba(255,255,255,.8);transition:color .2s}
  .footer-links a:hover{color:var(--accent)}
  .footer-form{margin-top:14px;display:flex;flex-direction:column;gap:10px}
  .footer-form input{
    width:100%;padding:11px 14px;border-radius:var(--r-btn);
    border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.1);
    color:#fff;font-size:14px;
  }
  .footer-form input::placeholder{color:rgba(255,255,255,.55)}
  .footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,138,46,.28)}
  .footer-form button{
    padding:11px 18px;border:0;border-radius:var(--r-btn);
    background:var(--accent);color:#fff;font-size:14px;font-weight:600;
    transition:background .2s,transform .15s;
  }
  .footer-form button:hover{background:var(--accent-deep);transform:translateY(-1px)}
  .footer-note{font-size:12px;color:rgba(255,255,255,.55);line-height:1.7;margin-top:2px}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
    border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;font-size:13px;
    color:rgba(255,255,255,.65);
  }
  .top-btn{
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
    color:#fff;font-size:13px;padding:8px 16px;border-radius:var(--r-btn);transition:.2s;
  }
  .top-btn:hover{background:var(--accent);border-color:var(--accent)}

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:1023px){
    .nav-links{display:none}
    .nav-toggle{display:flex}
    .layout{grid-template-columns:1fr}
    .aside-card.is-sticky{position:static}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:52px 0 36px}
    .section{padding:60px 0}
    .article-card{padding:30px 26px 34px}
  }
  @media (max-width:768px){
    .wrap,.header-inner{padding-left:20px;padding-right:20px}
    .article-top{padding:26px 0 34px}
    .breadcrumb .current{max-width:200px}
    .card-grid{grid-template-columns:1fr}
    .pager{grid-template-columns:1fr}
    .pager .right{text-align:left}
    .cta-band{padding:32px 24px}
    .back-band{padding:22px 22px}
    .article-body h2{font-size:21px;margin-top:36px}
    .article-body h3{font-size:17.5px}
  }
  @media (max-width:520px){
    .logo-text{font-size:15px}
    .article-main{padding:36px 0 52px}
    .article-card{padding:24px 18px 28px;border-radius:14px}
    .meta-bar{gap:8px 16px;font-size:13px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .article-body{font-size:15.5px}
  }

/* roulang page: category1 */
:root{
  --brand:#1652A6;
  --brand-deep:#0F3A78;
  --brand-soft:#E8F0FB;
  --accent:#F08A2E;
  --accent-deep:#D8731C;
  --status:#2E9E6B;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --line:#E6EAF0;
  --ink:#1B2530;
  --muted:#5A6675;
  --r-card:16px;
  --r-soft:12px;
  --r-btn:10px;
  --r-tag:6px;
  --sh-sm:0 1px 2px rgba(16,42,80,.06);
  --sh-md:0 6px 18px rgba(16,42,80,.08);
  --sh-lg:0 16px 36px rgba(16,42,80,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
section[id],div[id]{scroll-margin-top:88px}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
@media (max-width:1023px){.wrap{padding:0 24px}}
@media (max-width:639px){.wrap{padding:0 16px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,height .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,#2C6FCB 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--brand)}
@media (max-width:520px){.brand-text{font-size:15px}.brand-mark{width:30px;height:30px}}

.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:14.5px;font-weight:500;color:#33404F;
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width .22s ease;
}
.nav-link:hover{color:var(--brand);text-decoration:none}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{width:100%}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;cursor:pointer;
  transition:transform .16s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-sm)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(22,82,166,.35)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 28px;font-size:16px}
.btn:disabled{opacity:.4;cursor:not-allowed}

.menu-btn{
  display:none;width:40px;height:40px;border:1px solid var(--line);
  border-radius:10px;background:#fff;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;cursor:pointer;padding:0;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.is-open span:nth-child(2){opacity:0}
.menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:flex}
}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(15,35,60,.38);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:70;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:#fff;border-radius:16px 0 0 16px;z-index:80;
  padding:24px 22px;transform:translateX(102%);
  transition:transform .26s ease;box-shadow:var(--sh-lg);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer a.m-link{
  display:block;padding:13px 12px;border-radius:10px;color:var(--ink);
  font-size:15px;font-weight:500;border:1px solid transparent;
}
.mobile-drawer a.m-link:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none}
.mobile-drawer a.m-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-color:rgba(22,82,166,.18)}
.mobile-drawer .m-cta{margin-top:14px}
.mobile-drawer .m-contact{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.9}

/* ---------- Section base ---------- */
.section{padding:96px 0}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:56px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:var(--r-tag);
}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,2.5vw,32px);line-height:1.3;font-weight:700}
h3{font-size:19px;line-height:1.4;font-weight:600}
p{margin:0}
.lead{font-size:17px;line-height:1.8;color:var(--muted)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-top:14px}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand);text-decoration:none}
.crumb .sep{color:#B6C0CC}
.crumb .now{color:var(--brand);font-weight:600}

/* ---------- Page hero ---------- */
.page-hero{
  background:linear-gradient(180deg,#F5F7FA 0%,#EDF3FC 100%);
  padding:38px 0 78px;border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:24px;
  background:#fff;clip-path:polygon(0 100%,0 55%,48% 0,100% 62%,100% 100%);
  opacity:.9;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;margin-top:26px}
@media (max-width:1023px){.hero-grid{grid-template-columns:1fr;gap:32px}}
.hero-copy h1{margin-top:18px}
.hero-copy .lead{margin-top:18px;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.trust-item .dot{width:8px;height:8px;border-radius:999px;background:var(--status);flex:0 0 auto}
.hero-visual{position:relative}
.hero-shot{
  width:100%;aspect-ratio:21/11;object-fit:cover;border-radius:20px;
  box-shadow:var(--sh-lg);background:var(--brand-soft);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;box-shadow:var(--sh-md);min-width:180px;
}
.hero-float .kpi{font-size:30px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.hero-float .kpi-label{font-size:13px;color:var(--muted);margin-top:4px}
@media (max-width:639px){
  .hero-float{left:0;bottom:-16px;padding:12px 16px;min-width:150px}
  .hero-float .kpi{font-size:24px}
}

/* ---------- Category body: side nav + grid ---------- */
.cat-layout{display:grid;grid-template-columns:252px 1fr;gap:38px;align-items:start}
@media (max-width:1023px){.cat-layout{grid-template-columns:1fr;gap:28px}}
.side-nav{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-sm);
}
@media (max-width:1023px){.side-nav{position:static}}
.side-nav h4{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.04em;padding:4px 10px 12px}
.side-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:block;padding:11px 12px;border-radius:10px;font-size:14.5px;color:#33404F;
  border-left:3px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none}
.side-nav a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
.side-nav .side-note{
  margin-top:16px;padding:14px;border-radius:var(--r-soft);background:var(--bg);
  font-size:13px;color:var(--muted);line-height:1.8;
}
.side-nav .side-note a{display:inline;padding:0;border:0;background:none;font-weight:600}
.side-nav .side-note a:hover{background:none;text-decoration:underline}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);padding:22px;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.card-media{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-soft);
  background:var(--brand-soft);margin-bottom:16px;
}
.card h3{margin-bottom:10px;transition:color .18s ease}
.card:hover h3{color:var(--brand)}
.card p{font-size:14.5px;color:var(--muted);line-height:1.75}
.card-foot{margin-top:auto;padding-top:16px}
.card-foot a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-tag);
}
.tag-status{background:rgba(46,158,107,.12);color:var(--status)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}

/* ---------- Compare list ---------- */
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:10px 26px}
.compare-row{
  display:grid;grid-template-columns:170px 1fr 74px;gap:18px;align-items:center;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.compare-row:last-child{border-bottom:0}
.cmp-name{font-size:15px;font-weight:600}
.cmp-bar{height:8px;border-radius:999px;background:var(--brand-soft);overflow:hidden}
.cmp-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),#3B7BD1)}
.cmp-val{font-size:14px;font-weight:700;color:var(--brand);text-align:right;font-variant-numeric:tabular-nums}
@media (max-width:639px){
  .compare{padding:6px 18px}
  .compare-row{grid-template-columns:1fr 62px;gap:10px}
  .cmp-bar{grid-column:1 / -1;order:3}
}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:1023px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:639px){.steps{grid-template-columns:1fr}}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-sm);position:relative;
}
.step-no{
  width:38px;height:38px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- Quotes ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:1023px){.quotes{grid-template-columns:1fr}}
.quote{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:14px;padding:24px;box-shadow:var(--sh-sm);
}
.quote p{font-size:15px;color:#33404F;line-height:1.85}
.quote .who{margin-top:16px;font-size:13px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-sm);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:20px 22px;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  color:var(--brand);font-size:16px;line-height:1;
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:var(--brand);border-color:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 22px 22px;max-width:720px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand-deep) 0%,var(--brand) 62%,#2C6FCB 100%);
  border-radius:22px;padding:48px 44px;color:#fff;box-shadow:var(--sh-lg);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);max-width:620px;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--brand);border-color:#fff}
.btn-white:hover{background:#F1F5FB;color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
@media (max-width:639px){.cta-band{padding:34px 22px;border-radius:18px}}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.82);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.3fr;gap:32px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.8);font-size:14px;line-height:1.9}
.footer-links a:hover{color:var(--accent);text-decoration:none}
.footer-form{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.footer-form input{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;font-size:14px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.55)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,138,46,.25)}
.footer-form button{
  padding:12px 18px;border-radius:10px;border:0;background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background-color .18s ease,transform .16s ease;
}
.footer-form button:hover{background:var(--accent-deep);transform:translateY(-1px)}
.footer-note{font-size:12px;color:rgba(255,255,255,.55);line-height:1.7}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.16);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.7);
}
.top-btn{
  border:1px solid rgba(255,255,255,.35);background:transparent;color:rgba(255,255,255,.85);
  padding:8px 16px;border-radius:10px;font-size:13px;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.top-btn:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.7)}

/* roulang page: category2 */
:root{
  --brand:#1652A6;
  --brand-deep:#0F3A78;
  --brand-soft:#E8F0FB;
  --accent:#F08A2E;
  --accent-deep:#D9741B;
  --status:#2E9E6B;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --line:#E6EAF0;
  --ink:#1B2530;
  --muted:#5A6675;
  --sh-sm:0 1px 2px rgba(16,42,80,.06);
  --sh-md:0 6px 18px rgba(16,42,80,.08);
  --sh-lg:0 16px 36px rgba(16,42,80,.12);
}
html{scroll-behavior:smooth}
html body{
  margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
html body a{color:inherit;text-decoration:none}
html body img{max-width:100%;height:auto;display:block}
html body button,html body input{font-family:inherit;font-size:inherit}
body.no-scroll{overflow:hidden}
section{scroll-margin-top:88px}

.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.sec{padding:96px 0}
.sec-tight{padding:40px 0 8px}
.sec-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.page-h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0}
.sec-h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin:0;color:var(--ink)}
.card-h3{font-size:19px;line-height:1.4;font-weight:600;margin:0;color:var(--ink)}
.para{font-size:16px;line-height:1.75;color:var(--muted);margin:0}
.small{font-size:14px;line-height:1.65;color:var(--muted);margin:0}
.micro{font-size:12px;line-height:1.5;color:var(--muted);margin:0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 32px;height:72px;display:flex;align-items:center;gap:24px;transition:height .22s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand svg{flex:none}
.brand:hover{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0;white-space:nowrap;transition:color .18s ease}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;flex:none}
.menu-btn span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.menu-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1.2;border-radius:10px;padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-sm)}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-accent:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:var(--surface);color:var(--brand);border-color:rgba(22,82,166,.35)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- 页头 ---------- */
.page-head{position:relative;overflow:hidden;background:linear-gradient(180deg,#EEF4FC 0%,var(--bg) 100%);border-bottom:1px solid var(--line);padding:52px 0 68px}
.page-head-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.16;z-index:0}
.page-head-inner{position:relative;z-index:1;max-width:900px;margin:0 auto;text-align:center}
.crumb{display:flex;justify-content:center;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand);text-decoration:underline}
.crumb strong{color:var(--brand);font-weight:600}
.page-sub{font-size:17px;line-height:1.8;color:var(--muted);margin:18px auto 0;max-width:660px}
.head-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.head-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 24px;list-style:none;padding:0;margin:30px 0 0}
.head-badges li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.head-badges i{width:8px;height:8px;border-radius:999px;background:var(--status);flex:none;display:block}

/* ---------- 标签条 ---------- */
.tagbar{display:flex;gap:10px;overflow-x:auto;padding:6px 2px 12px;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.tagbar::-webkit-scrollbar{height:6px}
.tagbar::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.tag-btn{flex:none;padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:14px;font-weight:500;cursor:pointer;transition:all .18s ease}
.tag-btn:hover{border-color:rgba(22,82,166,.35);color:var(--brand)}
.tag-btn.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:var(--sh-sm)}
.tag-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:720px;margin-bottom:36px}
.sec-head .para{margin-top:14px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.link-more{font-size:14px;font-weight:600;color:var(--brand);border-bottom:1px solid rgba(22,82,166,.35);padding-bottom:2px;transition:color .18s,border-color .18s}
.link-more:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- 交错大图卡片 ---------- */
.rows{display:grid;gap:24px}
.row-card{display:grid;grid-template-columns:minmax(0,40fr) minmax(0,60fr);gap:32px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--sh-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.row-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.row-card.row-alt{grid-template-columns:minmax(0,60fr) minmax(0,40fr)}
.row-card.row-alt .row-media{order:2}
.row-card.is-hidden{display:none}
.row-media{border-radius:12px;overflow:hidden;background:var(--brand-soft);box-shadow:var(--sh-sm)}
.row-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.row-card:hover .row-media img{transform:scale(1.03)}
.row-body{display:flex;flex-direction:column;gap:12px;min-width:0}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:6px;padding:4px 10px;align-self:flex-start}
.chip-status{color:var(--status);background:rgba(46,158,107,.12)}
.bullet-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.bullet-list li{position:relative;padding-left:20px;font-size:14px;line-height:1.7;color:var(--muted)}
.bullet-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.row-body .card-h3:hover{color:var(--brand)}
.row-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:2px}
.row-link:hover{color:var(--accent);text-decoration:underline}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;padding:0;margin:0}
.step{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.step-num{font-size:32px;font-weight:700;color:var(--brand);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:600;margin:16px 0 8px;color:var(--ink)}
.step p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}

/* ---------- 对比与指标 ---------- */
.compare-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--sh-sm)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.cmp{width:100%;border-collapse:collapse;min-width:560px}
table.cmp th,table.cmp td{text-align:left;font-size:14px;line-height:1.7;padding:14px 14px;border-bottom:1px solid var(--line);vertical-align:top}
table.cmp thead th{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;font-size:13.5px}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:hover td{background:#FAFCFF}
table.cmp td:first-child{font-weight:600;color:var(--ink);white-space:nowrap}
.meter-list{display:grid;gap:18px;margin-top:6px}
.meter-top{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--ink);margin-bottom:8px}
.meter-top b{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.meter-track{height:8px;border-radius:999px;background:var(--brand-soft);overflow:hidden}
.meter-track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand) 0%,#2F72C6 100%)}
.meter-track i.accent{background:linear-gradient(90deg,var(--accent) 0%,#F5A85B 100%)}

/* ---------- 反馈摘录 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.quote{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;gap:16px;transition:transform .2s,box-shadow .2s,border-color .2s}
.quote:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(22,82,166,.3)}
.quote p{font-size:15px;line-height:1.8;color:var(--ink);margin:0}
.quote footer{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:auto}
.quote .mark{font-size:26px;color:var(--brand-soft);line-height:1;font-weight:700}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{display:grid;gap:12px;margin-top:32px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.is-open{border-color:rgba(22,82,166,.35);box-shadow:var(--sh-md)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:transparent;border:0;padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-icon{flex:none;width:24px;height:24px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform .25s ease,background .2s,color .2s}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-text{max-width:720px;font-size:14.5px;line-height:1.85;color:var(--muted);margin:0;padding:0 22px 20px}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-deep);border-radius:20px;padding:48px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:36px;align-items:center;color:#fff;box-shadow:var(--sh-lg);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:999px;background:rgba(240,138,46,.18)}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;margin:0;color:#fff;position:relative;z-index:1}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);margin:14px 0 0;position:relative;z-index:1}
.cta-form{position:relative;z-index:1;display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{flex:1 1 200px;min-width:0;padding:13px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);color:#fff;font-size:15px}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,138,46,.28)}
.cta-note{position:relative;z-index:1;font-size:12px;color:rgba(255,255,255,.62);margin:14px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);margin:0 0 10px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.6fr;gap:32px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-links{display:grid;gap:8px}
.footer-links a{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);transition:color .16s ease}
.footer-links a:hover{color:var(--accent);text-decoration:underline}
.footer-form{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.footer-form input{flex:1 1 170px;min-width:0;padding:11px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:14px}
.footer-form input::placeholder{color:rgba(255,255,255,.55)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,138,46,.25)}
.footer-form button{padding:11px 20px;border-radius:10px;border:0;background:var(--accent);color:#fff;font-weight:600;font-size:14px;cursor:pointer;transition:background .18s ease,transform .16s ease}
.footer-form button:hover{background:var(--accent-deep);transform:translateY(-1px)}
.footer-form button:active{transform:translateY(1px)}
.footer-note{font-size:12px;color:rgba(255,255,255,.55);margin:10px 0 0;width:100%}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;font-size:13px;color:rgba(255,255,255,.6)}
.top-btn{background:transparent;border:1px solid rgba(255,255,255,.3);color:rgba(255,255,255,.82);border-radius:8px;padding:7px 14px;font-size:13px;cursor:pointer;transition:all .18s ease}
.top-btn:hover{border-color:var(--accent);color:var(--accent)}
.top-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-inner{padding:0 24px}
  .wrap{padding:0 24px}
  .sec{padding:72px 0}
  .nav-links{position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:360px;background:var(--surface);flex-direction:column;align-items:stretch;gap:2px;padding:88px 24px 32px;border-radius:16px 0 0 16px;box-shadow:var(--sh-lg);transform:translateX(100%);transition:transform .28s ease;z-index:80;overflow-y:auto;margin-left:0}
  .nav-links.is-open{transform:translateX(0)}
  .menu-btn{display:flex}
  .nav-link{width:100%;padding:13px 2px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--brand)}
  .nav-cta{margin-top:18px;width:100%}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:899px){
  .row-card,.row-card.row-alt{grid-template-columns:minmax(0,1fr);gap:20px;padding:20px}
  .row-card .row-media,.row-card.row-alt .row-media{order:0}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .nav-inner{padding:0 16px;height:64px}
  .sec{padding:56px 0}
  .page-head{padding:36px 0 52px}
  .page-sub{font-size:15.5px}
  .head-actions .btn{width:100%}
  .head-badges{gap:10px 18px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .quotes{grid-template-columns:minmax(0,1fr)}
  .panel{padding:20px}
  .step,.quote{padding:20px}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-form input,.cta-form .btn{width:100%;flex:1 1 100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}