/* roulang page: index */
:root{
  --c-primary:#1B5FD9;
  --c-primary-deep:#123F91;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF7A2E;
  --c-accent-hover:#E86A1F;
  --c-teal:#12B8A6;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-band:#EEF4FE;
  --c-text:#14213D;
  --c-text-sub:#4A5A76;
  --c-text-mute:#8A98B0;
  --c-line:#E3EAF5;
  --c-danger:#D64545;
  --shadow-card:0 6px 24px rgba(20,45,90,.08);
  --shadow-card-hover:0 14px 36px rgba(20,45,90,.14);
  --shadow-nav:0 4px 16px rgba(20,45,90,.08);
  --shadow-bar:0 -6px 20px rgba(20,45,90,.10);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
svg{display:block}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 24px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;transition:min-height .25s ease}
.site-header.is-scrolled .header-inner{min-height:62px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{position:relative;width:38px;height:38px;border-radius:10px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:700;overflow:hidden}
.logo-mark::after{content:"";position:absolute;right:-7px;bottom:-7px;width:24px;height:24px;border-radius:7px;background:rgba(255,255,255,.16)}
.logo-text{font-size:19px;font-weight:700;color:var(--c-text);white-space:nowrap}
.search-wrap{flex:1 1 auto;max-width:520px;margin:0 auto}
.search-form{display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);box-shadow:inset 0 1px 2px rgba(20,45,90,.04);transition:border-color .2s,box-shadow .2s}
.search-form:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.20)}
.search-form .s-icon{flex:none;color:var(--c-text-mute)}
.search-form input{flex:1 1 auto;min-width:0;height:100%;border:0;outline:0;background:transparent;font-size:14px}
.search-form input::placeholder{color:var(--c-text-mute)}
.search-btn{flex:none;height:34px;padding:0 18px;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;transition:background .2s}
.search-btn:hover{background:#164FB8}
.nav-links{display:flex;align-items:center;gap:2px;flex:none}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 12px;font-size:15px;font-weight:500;color:var(--c-text-sub);transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:16px;width:0;height:2px;border-radius:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .22s ease}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{width:20px}
.nav-actions{display:none;gap:8px;margin-left:auto}
.icon-btn{width:42px;height:42px;border-radius:var(--r-pill);display:grid;place-items:center;color:var(--c-text-sub);border:1px solid var(--c-line);background:var(--c-surface);transition:color .2s,border-color .2s,background .2s}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.mobile-search{display:none;padding:4px 0 16px}
.mobile-search.is-open{display:block}
@media (max-width:1023px){
  .nav-links{display:none}
  .search-wrap{display:none}
  .nav-actions{display:flex}
  .logo-text{font-size:17px}
}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:80;background:var(--c-surface);transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:18px 20px 24px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:58px;font-size:17px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line)}
.drawer-link.is-active{color:var(--c-primary)}
.drawer-link span{color:var(--c-text-mute);font-weight:400}
.drawer-note{margin-top:18px;font-size:14px;color:var(--c-text-sub);line-height:1.8}
.drawer-foot{margin-top:auto;padding-top:26px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:transform .18s ease,background .2s ease,border-color .2s ease,color .2s ease}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,46,.28)}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-link{display:inline-flex;align-items:center;gap:6px;padding:0;background:none;border:0;color:var(--c-primary);font-size:14px;font-weight:600;cursor:pointer}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover{text-decoration:underline}
.btn-link:hover svg{transform:translateX(2px)}
@media (max-width:639px){.btn{height:44px;padding:0 20px;font-size:14px}}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:92px 0}}
.section-white{background:var(--c-surface)}
.section-band{background:var(--c-band)}
.section-head{max-width:740px;margin:0 auto 36px;text-align:center}
.section-head h2{font-size:24px;font-weight:700;line-height:1.3}
@media (min-width:1024px){.section-head h2{font-size:28px}}
.section-sub{margin-top:12px;font-size:15px;color:var(--c-text-sub)}
.section-head--split{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;max-width:none;text-align:left;margin-bottom:32px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);margin-bottom:12px}
.eyebrow::before{content:"";width:4px;height:13px;border-radius:2px;background:var(--c-primary)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-sm);background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600}
.badge-live{background:#E9F8F5;color:#0E8F81}
.dot{width:7px;height:7px;border-radius:50%;background:var(--c-teal)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--c-surface);overflow:hidden;padding:48px 0 56px}
@media (min-width:1024px){.hero{padding:88px 0 96px}}
.hero::before{content:"";position:absolute;top:-40px;right:-60px;width:520px;height:520px;background-image:radial-gradient(rgba(27,95,217,.08) 1.5px,transparent 1.5px);background-size:22px 22px;pointer-events:none}
.hero-grid{position:relative;display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.hero-copy{padding-right:0}
@media (min-width:1024px){.hero-copy{padding-right:8%}}
.hero h1{margin-top:16px;font-size:28px;font-weight:700;line-height:1.3;letter-spacing:0}
@media (min-width:640px){.hero h1{font-size:32px}}
@media (min-width:1024px){.hero h1{font-size:42px}}
.hero-sub{margin-top:16px;font-size:16px;color:var(--c-text-sub);max-width:520px}
@media (min-width:1024px){.hero-sub{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-sub)}
.trust-item svg{color:var(--c-primary)}
.hero-visual{position:relative}
.hero-visual::after{content:"";position:absolute;inset:auto -10px -10px auto;width:120px;height:120px;background-image:radial-gradient(rgba(255,122,46,.18) 1.5px,transparent 1.5px);background-size:14px 14px;opacity:.5;pointer-events:none}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-card);position:relative;z-index:1}
.hero-float{position:absolute;left:-14px;bottom:22px;z-index:2;display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-card)}
.hero-float strong{display:block;font-size:15px;font-weight:700;line-height:1.3}
.hero-float small{font-size:12px;color:var(--c-text-mute)}
@media (max-width:640px){.hero-float{left:10px}}

/* ---------- cards ---------- */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.feature-grid{display:grid;gap:24px}
@media (min-width:640px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.feature-grid{grid-template-columns:repeat(3,1fr)}}
.feature-card{padding:26px 24px}
.feature-card--accent{background:var(--c-primary-soft);border-color:var(--c-primary)}
.feature-icon{width:48px;height:48px;border-radius:var(--r-md);display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:18px}
.feature-card--accent .feature-icon{background:var(--c-primary);color:#fff}
.feature-card h3{font-size:19px;font-weight:600;line-height:1.4}
.feature-card p{margin-top:10px;font-size:14px;color:var(--c-text-sub);line-height:1.75}
@media (min-width:640px) and (max-width:1023px){.feature-card:last-child{grid-column:span 2}}

/* ---------- zigzag ---------- */
.zigzag{display:grid;gap:32px;align-items:center}
@media (min-width:1024px){.zigzag{grid-template-columns:1fr 1fr;gap:64px}}
@media (min-width:1024px){.zigzag--flip .zz-media{order:2}}
.zz-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-card)}
.zz-body h3{font-size:22px;font-weight:700;line-height:1.35;margin-top:4px}
@media (min-width:1024px){.zz-body h3{font-size:26px}}
.point-list{margin-top:18px}
.point-list li{position:relative;padding-left:18px;margin-top:10px;font-size:15px;color:var(--c-text-sub)}
.point-list li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.zz-cta{margin-top:24px}
.zigzag-block+.zigzag-block{margin-top:56px}
@media (min-width:1024px){.zigzag-block+.zigzag-block{margin-top:88px}}

/* ---------- post grid ---------- */
.post-grid{display:grid;gap:24px}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{display:flex;flex-direction:column;overflow:hidden;height:100%}
.post-media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-band)}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-media img{transform:scale(1.04)}
.post-badge{position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:var(--r-sm);background:rgba(255,255,255,.94);color:var(--c-primary);font-size:12px;font-weight:600}
.post-body{display:flex;flex-direction:column;flex:1;padding:20px}
.post-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a:hover{color:var(--c-primary)}
.post-excerpt{margin-top:10px;font-size:14px;color:var(--c-text-sub);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-text-mute)}
.post-foot .arrow{color:var(--c-primary);transition:transform .2s ease}
.post-card:hover .post-foot .arrow{transform:translateX(3px)}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;border:1px dashed var(--c-line);border-radius:var(--r-md);background:var(--c-surface);color:var(--c-text-mute);font-size:14px}
.empty-state a{color:var(--c-primary);font-weight:600}

/* ---------- stats & reviews ---------- */
.stats-grid{display:grid;gap:24px;grid-template-columns:repeat(2,1fr)}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat{padding:24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-card)}
.stat-num{font-size:32px;font-weight:700;line-height:1.1;color:var(--c-primary)}
@media (min-width:1024px){.stat-num{font-size:36px}}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-text-sub)}
.review-grid{display:grid;gap:24px;margin-top:32px}
@media (min-width:640px){.review-grid{grid-template-columns:repeat(3,1fr)}}
.review-card{padding:22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--shadow-card)}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:grid;place-items:center;font-size:16px;font-weight:600}
.review-name{font-size:15px;font-weight:600}
.stars{font-size:13px;color:var(--c-accent);letter-spacing:2px}
.review-text{margin-top:14px;font-size:14px;color:var(--c-text-sub);line-height:1.8}
.logo-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:36px;padding-top:28px;border-top:1px solid var(--c-line)}
.logo-strip span{flex:0 0 122px;height:36px;border-radius:var(--r-sm);background:#E6ECF6}

/* ---------- faq ---------- */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{position:relative;overflow:hidden;margin-bottom:12px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(27,95,217,.35);box-shadow:var(--shadow-card)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-item[open] .faq-q{color:var(--c-primary)}
.faq-icon{position:relative;flex:none;width:20px;height:20px;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-sub)}

/* ---------- cta ---------- */
.cta-panel{display:flex;flex-direction:column;gap:22px;padding:30px 24px;background:var(--c-band);border:1px solid var(--c-primary);border-radius:var(--r-lg)}
@media (min-width:1024px){.cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 48px}}
.cta-panel h2{font-size:22px;font-weight:700;line-height:1.4}
@media (min-width:1024px){.cta-panel h2{font-size:26px}}
.cta-panel p{margin-top:10px;font-size:15px;color:var(--c-text-sub);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:#fff;border-top:1px solid rgba(255,255,255,.16)}
.footer-inner{padding:56px 0 96px}
.footer-grid{display:grid;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-desc{margin-top:16px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.85;max-width:320px}
.footer-contact{margin-top:16px;font-size:13px;color:rgba(255,255,255,.72);line-height:2}
.footer-title{font-size:15px;font-weight:600;margin-bottom:12px}
.footer-link{display:block;min-height:44px;line-height:44px;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-link:hover{color:#fff}
.footer-search .search-form{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);box-shadow:none}
.footer-search .search-form input{color:#fff}
.footer-search .search-form input::placeholder{color:rgba(255,255,255,.55)}
.footer-search .search-form:focus-within{border-color:rgba(255,255,255,.6);box-shadow:0 0 0 3px rgba(255,255,255,.14)}
.footer-tip{margin-top:12px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- sticky bar ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--c-surface);border-top:1px solid var(--c-line);box-shadow:var(--shadow-bar);padding:10px 0 calc(10px + env(safe-area-inset-bottom));opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .3s ease,transform .3s ease}
.sticky-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:52px}
.sticky-text{font-size:14px;color:var(--c-text-sub)}
.sticky-text strong{font-weight:600;color:var(--c-text)}
.sticky-actions{display:flex;align-items:center;gap:12px;flex:none}
@media (max-width:639px){.sticky-text{font-size:13px}.sticky-actions .btn-link{display:none}}
.link-quiet{font-size:13px;color:var(--c-text-mute)}
.link-quiet:hover{color:var(--c-primary)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-primary:#1B5FD9;
  --c-primary-deep:#123F91;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF7A2E;
  --c-accent-hover:#E86A1F;
  --c-teal:#12B8A6;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-band:#EEF4FE;
  --c-text:#14213D;
  --c-text-sub:#4A5A76;
  --c-text-mute:#8A98B0;
  --c-line:#E3EAF5;
  --c-danger:#D64545;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --shadow-card:0 6px 24px rgba(20,45,90,.08);
  --shadow-card-hover:0 14px 36px rgba(20,45,90,.14);
  --shadow-nav:0 4px 16px rgba(20,45,90,.08);
  --shadow-sticky:0 -6px 20px rgba(20,45,90,.10);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text);}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:rgba(27,95,217,.18);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){ .container{padding:0 32px;} }
@media (min-width:1024px){ .container{padding:0 24px;} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{ box-shadow:var(--shadow-nav); }
.header-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
  transition:min-height .25s ease;
}
.site-header.is-scrolled .header-inner{ min-height:60px; }
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-size:19px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 12px rgba(27,95,217,.28);
}
.logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--c-primary-deep);
  letter-spacing:.2px;
  white-space:nowrap;
}
.header-search{
  flex:1 1 auto;
  max-width:520px;
  margin:0 auto;
}
.search-form{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 6px 0 14px;
  border:1px solid var(--c-line);
  border-radius:999px;
  background:var(--c-surface);
  box-shadow:inset 0 1px 2px rgba(20,45,90,.04);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.search-form:focus-within{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(27,95,217,.20);
}
.search-form .s-icon{ flex:0 0 auto; color:var(--c-text-mute); }
.search-form input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:15px;
}
.search-form input::placeholder{ color:var(--c-text-mute); }
.search-btn{
  flex:0 0 auto;
  height:34px;
  padding:0 18px;
  border:0;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease;
}
.search-btn:hover{ background:#1750BA; }
.nav-links{
  display:none;
  align-items:center;
  gap:4px;
  flex:0 0 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-sub);
  border-radius:var(--radius-sm);
  transition:color .2s ease, background .2s ease;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-links a:hover{ color:var(--c-primary); }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-links a.is-active{ color:var(--c-primary); font-weight:600; }
.nav-links a.is-active::after{ transform:scaleX(1); }
.header-actions{
  display:flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
  margin-left:auto;
}
.icon-btn{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-text-sub);
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.icon-btn:hover{ color:var(--c-primary); border-color:var(--c-primary); background:var(--c-primary-soft); }
.mobile-search{
  display:none;
  padding:0 20px 14px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.mobile-search.is-open{ display:block; }
@media (min-width:1024px){
  .nav-links{ display:flex; }
  .header-actions{ display:none; }
  .mobile-search{ display:none !important; }
}
/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:#fff;
  display:flex;
  flex-direction:column;
  transform:translateY(-12px);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease, transform .22s ease;
}
.drawer.is-open{ opacity:1; transform:none; pointer-events:auto; }
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
}
.drawer-nav{ padding:12px 20px 20px; }
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:56px;
  padding:0 4px;
  font-size:18px;
  font-weight:600;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{ color:var(--c-primary); }
.drawer-foot{ margin-top:auto; padding:20px; border-top:1px solid var(--c-line); }

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:14px 0;
  font-size:14px;
  color:var(--c-text-sub);
}
.breadcrumb a{ color:var(--c-text-sub); }
.breadcrumb a:hover{ color:var(--c-primary); }
.breadcrumb .sep{ color:var(--c-text-mute); }
.breadcrumb .crumb-current{
  color:var(--c-primary);
  max-width:520px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章主体 ---------- */
.page-main{ background:var(--c-bg); padding:32px 0 72px; }
.article-shell{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  padding:24px 20px 32px;
}
@media (min-width:768px){ .article-shell{ padding:36px 40px 44px; } }
.article-head h1{
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--c-text);
  letter-spacing:0;
}
@media (min-width:768px){ .article-head h1{ font-size:30px; } }
@media (min-width:1024px){ .article-head h1{ font-size:34px; } }
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 16px;
  margin-top:16px;
  font-size:13px;
  color:var(--c-text-mute);
}
.article-meta time{ color:var(--c-text-sub); }
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--radius-sm);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
}
.badge-live{ background:#EAF9F7; color:#0E8C7E; }
.dot{ width:6px; height:6px; border-radius:50%; background:var(--c-teal); }
.rule{ height:1px; background:var(--c-line); margin:20px 0 0; border:0; }
.article-figure{ margin:22px 0 0; }
.article-figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-md);
  border:1px solid var(--c-line);
}
.article-figure figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--c-text-mute);
  text-align:center;
}
.article-layout{ margin-top:28px; }
@media (min-width:1024px){
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;
    align-items:start;
  }
}
.article-content{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--c-text);
  word-wrap:break-word;
}
.article-content > * + *{ margin-top:1.2em; }
.article-content p{ color:#243352; }
.article-content h2{
  position:relative;
  margin-top:40px;
  padding-left:14px;
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--c-text);
}
.article-content h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:3px;
  height:1em;
  border-radius:2px;
  background:var(--c-primary);
}
.article-content h3{
  margin-top:28px;
  font-size:20px;
  font-weight:600;
  color:var(--c-text);
}
.article-content a{ color:var(--c-primary); border-bottom:1px solid rgba(27,95,217,.35); }
.article-content a:hover{ border-bottom-color:var(--c-primary); }
.article-content strong{ font-weight:600; }
.article-content ul,.article-content ol{ padding-left:1.3em; }
.article-content ul li{ list-style:disc; margin:.5em 0; }
.article-content ol li{ list-style:decimal; margin:.5em 0; }
.article-content blockquote{
  margin:24px 0;
  padding:16px 18px;
  background:var(--c-band);
  border-left:3px solid var(--c-primary);
  border-radius:var(--radius-sm);
  color:var(--c-text-sub);
}
.article-content blockquote p{ color:var(--c-text-sub); }
.article-content img{
  width:100%;
  border-radius:var(--radius-md);
  border:1px solid var(--c-line);
}
.article-content figure figcaption{
  margin-top:8px;
  font-size:13px;
  color:var(--c-text-mute);
  text-align:center;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid var(--c-line);
}
.article-content th,.article-content td{
  padding:10px 14px;
  text-align:left;
  border-bottom:1px solid var(--c-line);
}
.article-content thead th{ background:var(--c-band); color:var(--c-primary-deep); font-weight:600; }
.article-content tbody tr:nth-child(even){ background:#FAFCFF; }
.article-content hr{ border:0; height:1px; background:var(--c-line); }
/* 正文空态 */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  min-height:220px;
  padding:32px 20px;
  text-align:center;
  background:#FAFCFF;
  border:1px dashed var(--c-line);
  border-radius:var(--radius-md);
}
.empty-state svg{ color:var(--c-text-mute); }
.empty-state p{ font-size:15px; color:var(--c-text-sub); }

/* 侧栏 */
.article-aside{ margin-top:36px; }
@media (min-width:1024px){
  .article-aside{ margin-top:0; position:sticky; top:92px; }
}
.aside-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  padding:20px;
}
.aside-card + .aside-card{ margin-top:20px; }
.aside-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  padding-bottom:12px;
  border-bottom:1px solid var(--c-line);
}
.aside-title::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--c-accent);
}
.aside-list{ margin-top:6px; }
.aside-list li + li{ border-top:1px dashed var(--c-line); }
.aside-list a{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:12px 2px;
  font-size:14px;
  line-height:1.6;
  color:var(--c-text-sub);
  transition:color .2s ease, transform .2s ease;
}
.aside-list a:hover{ color:var(--c-primary); transform:translateX(2px); }
.aside-list .idx{
  flex:0 0 auto;
  width:20px;
  height:20px;
  margin-top:1px;
  border-radius:6px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* 文末区 */
.article-foot{
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--c-line);
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:var(--c-band);
  border:1px solid var(--c-line);
  color:var(--c-text-sub);
  font-size:13px;
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.tag:hover{ color:var(--c-primary); border-color:var(--c-primary); background:var(--c-primary-soft); }
.foot-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:22px; }

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  transition:background .2s ease, color .2s ease, border-color .2s ease, transform .16s ease, box-shadow .2s ease;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{ background:var(--c-accent); color:#fff; box-shadow:0 8px 20px rgba(255,122,46,.28); }
.btn-primary:hover{ background:var(--c-accent-hover); transform:translateY(-1px); }
.btn-outline{ background:transparent; color:var(--c-primary); border-color:var(--c-primary); }
.btn-outline:hover{ background:var(--c-primary-soft); }
.btn-ghost{ background:var(--c-surface); color:var(--c-text-sub); border-color:var(--c-line); }
.btn-ghost:hover{ color:var(--c-primary); border-color:var(--c-primary); }
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
  background:none;
  border:0;
  padding:0;
}
.btn-text .arrow{ transition:transform .2s ease; }
.btn-text:hover{ text-decoration:underline; }
.btn-text:hover .arrow{ transform:translateX(2px); }

/* 板块通用 */
.section{ padding:56px 0; }
@media (min-width:1024px){ .section{ padding:88px 0; } }
.section-band{ background:var(--c-band); }
.section-head{ margin-bottom:32px; }
.section-head.center{ text-align:center; }
.section-head h2{
  font-size:24px;
  line-height:1.35;
  font-weight:700;
  color:var(--c-text);
}
@media (min-width:768px){ .section-head h2{ font-size:28px; } }
.section-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text-sub);
}
.section-head.split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}

/* 卡片网格 */
.card-grid{
  display:grid;
  gap:24px;
  grid-template-columns:1fr;
}
@media (min-width:640px){ .card-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .card-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); } }
.card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-card-hover); }
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-band);
}
.card-cover img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease; }
.card:hover .card-cover img{ transform:scale(1.03); }
.card-cover .badge{ position:absolute; left:12px; top:12px; background:rgba(255,255,255,.94); }
.card-body{ padding:20px; display:flex; flex-direction:column; flex:1 1 auto; }
.card-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-desc{
  margin-top:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--c-text-sub);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:16px;
  font-size:12px;
  color:var(--c-text-mute);
}
.card-foot .arrow{ color:var(--c-primary); font-weight:600; }

/* FAQ */
.faq-wrap{ max-width:800px; margin:0 auto; }
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease;
}
.faq-item + .faq-item{ margin-top:12px; }
.faq-item summary{
  position:relative;
  display:block;
  padding:18px 52px 18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-plus{
  position:absolute;
  right:20px;
  top:50%;
  width:16px;
  height:16px;
  margin-top:-8px;
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--c-text-mute);
  border-radius:2px;
  transition:transform .2s ease, background .2s ease;
}
.faq-plus::before{ left:0; top:7px; width:16px; height:2px; }
.faq-plus::after{ left:7px; top:0; width:2px; height:16px; }
.faq-item[open]{ border-color:rgba(27,95,217,.35); }
.faq-item[open] summary{ color:var(--c-primary); }
.faq-item[open] summary::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-primary);
}
.faq-item[open] .faq-plus::after{ transform:scaleY(0); }
.faq-item[open] .faq-plus::before{ background:var(--c-primary); }
.faq-answer{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-sub);
}
.faq-answer p + p{ margin-top:10px; }

/* 底部固定转化条 */
.sticky-cta{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  box-shadow:var(--shadow-sticky);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom,0px));
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  transition:opacity .28s ease, transform .28s ease;
}
.sticky-cta.is-visible{ opacity:1; transform:none; pointer-events:auto; }
.sticky-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.sticky-text{ font-size:14px; font-weight:600; color:var(--c-text); }
.sticky-text span{ display:block; font-size:12px; font-weight:400; color:var(--c-text-mute); }
.sticky-cta .btn{ height:44px; padding:0 20px; }
@media (min-width:768px){ .sticky-cta .btn{ height:48px; padding:0 28px; } }

/* 页脚 */
.site-footer{
  background:var(--c-primary-deep);
  color:#fff;
  padding:56px 0 96px;
  border-top:1px solid rgba(255,255,255,.16);
}
.footer-grid{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
@media (min-width:768px){ .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.4fr; gap:40px; } }
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand .logo-mark{ box-shadow:none; }
.footer-desc{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:320px;
}
.footer-contact{
  margin-top:12px;
  font-size:13px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-link{
  display:block;
  min-height:36px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease, transform .2s ease;
}
.footer-link:hover{ color:#fff; transform:translateX(2px); }
.footer-search .search-form{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.22);
  box-shadow:none;
}
.footer-search .search-form .s-icon{ color:rgba(255,255,255,.6); }
.footer-search .search-form input{ color:#fff; }
.footer-search .search-form input::placeholder{ color:rgba(255,255,255,.55); }
.footer-search .search-form:focus-within{
  border-color:rgba(255,255,255,.6);
  box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.footer-search .search-btn{ background:var(--c-accent); }
.footer-search .search-btn:hover{ background:var(--c-accent-hover); }
.footer-tip{
  margin-top:12px;
  font-size:13px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* roulang page: category1 */
:root{
  --c-primary:#1B5FD9;
  --c-primary-deep:#123F91;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF7A2E;
  --c-accent-hover:#E86A1F;
  --c-teal:#12B8A6;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-band:#EEF4FE;
  --c-text:#14213D;
  --c-text-sub:#4A5A76;
  --c-text-mute:#8A98B0;
  --c-line:#E3EAF5;
  --c-danger:#D64545;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-card:0 6px 24px rgba(20,45,90,.08);
  --sh-card-hover:0 14px 36px rgba(20,45,90,.14);
  --sh-nav:0 4px 16px rgba(20,45,90,.08);
  --sh-bar:0 -6px 20px rgba(20,45,90,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(27,95,217,.35);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media(min-width:1024px){.container{padding-left:24px;padding-right:24px;}}

/* ============ 通用文本层级 ============ */
.h1{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:0;}
.h2{font-size:24px;line-height:1.3;font-weight:700;}
.h3{font-size:18px;line-height:1.4;font-weight:600;}
.lead{font-size:16px;line-height:1.75;color:var(--c-text-sub);}
.muted{color:var(--c-text-sub);}
.tiny{font-size:12px;color:var(--c-text-mute);}
@media(min-width:768px){
  .h1{font-size:34px;}
  .h2{font-size:28px;}
  .h3{font-size:20px;}
}
@media(min-width:1024px){
  .h1{font-size:40px;}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-size:19px;
  font-weight:700;
  line-height:1;
  box-shadow:0 4px 12px rgba(27,95,217,.28);
}
.logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--c-text);
  white-space:nowrap;
}
.nav-search{
  flex:1 1 auto;
  max-width:560px;
  position:relative;
  display:none;
}
.search-form{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 4px 0 14px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:inset 0 1px 2px rgba(20,45,90,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(27,95,217,.20);
}
.search-form .s-icon{color:var(--c-text-mute);flex:0 0 auto;}
.search-form input[type="search"]{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  font-size:14px;
  outline:none;
}
.search-form input[type="search"]::placeholder{color:var(--c-text-mute);}
.search-btn{
  flex:0 0 auto;
  height:36px;
  padding:0 18px;
  border-radius:var(--r-pill);
  background:var(--c-primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.search-btn:hover{background:#1750B9;}
.search-btn:active{transform:translateY(1px);}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-sub);
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.icon-btn{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--c-line);
  color:var(--c-text-sub);
  transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;}
.mobile-search,
.mobile-drawer{display:none;}
.mobile-search.is-open{display:block;padding:0 0 14px;}
.mobile-search .search-form{height:46px;}
.mobile-drawer.is-open{
  display:block;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-drawer a{
  display:block;
  padding:14px 4px;
  font-size:17px;
  font-weight:500;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-cta{
  margin-top:16px;
  width:100%;
  height:48px;
  border-radius:var(--r-pill);
  background:var(--c-accent);
  color:#fff;
  font-size:16px;
  font-weight:600;
  text-align:center;
  line-height:48px;
  border-bottom:0;
  display:block;
}
@media(min-width:1024px){
  .nav-search{display:flex;}
  .nav-links{display:flex;}
  .nav-actions{display:none;}
  .mobile-search,.mobile-drawer{display:none !important;}
}

/* ============ 页面头 ============ */
.page-head{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:28px 0 32px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-text-sub);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-text-sub);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3CEDF;}
.breadcrumb .current{color:var(--c-primary);font-weight:500;}
.page-head .h1{max-width:900px;}
.page-head .lead{max-width:760px;margin-top:14px;}
.chip-row{
  display:flex;
  gap:10px;
  margin-top:22px;
  overflow-x:auto;
  padding-bottom:4px;
  scrollbar-width:thin;
}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:#fff;
  font-size:14px;
  font-weight:500;
  color:var(--c-text-sub);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.is-current{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  font-weight:600;
}

/* ============ Banner 宽幅图 ============ */
.banner{padding:36px 0 0;}
.banner-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-card);
  background:var(--c-band);
}
.banner-figure img{
  width:100%;
  aspect-ratio:16/6;
  object-fit:cover;
}
.banner-caption{
  position:absolute;
  left:20px;
  right:20px;
  bottom:20px;
  max-width:520px;
  background:rgba(255,255,255,.95);
  border-radius:var(--r-md);
  padding:16px 18px;
  box-shadow:0 6px 24px rgba(20,45,90,.12);
}
.banner-caption p{
  font-size:14px;
  line-height:1.7;
  color:var(--c-text-sub);
}
.banner-caption strong{color:var(--c-text);font-weight:600;}
@media(max-width:640px){
  .banner-figure img{aspect-ratio:4/3;}
  .banner-caption{left:12px;right:12px;bottom:12px;padding:12px 14px;}
}

/* ============ 板块 ============ */
.section{padding:56px 0;}
.section.band{background:var(--c-band);}
.section.surface{background:var(--c-surface);}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head .h2{margin-bottom:10px;}
.section-head .lead{font-size:15px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-sm);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  line-height:1.5;
}
.badge.status{background:#E9F7F5;color:#0E8C7F;}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--c-teal);
  flex:0 0 auto;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
@media(min-width:768px){.btn{height:48px;padding:0 28px;}}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,46,.28);}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-text-sub);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 文字链接 */
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
  transition:gap .2s ease;
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover svg{transform:translateX(2px);}

/* ============ 卡片网格 ============ */
.card-grid{
  display:grid;
  gap:24px;
  grid-template-columns:1fr;
}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);}
.card-media{position:relative;overflow:hidden;background:var(--c-band);}
.card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .35s ease;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card-body .h3{color:var(--c-text);}
.card-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-sub);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-meta{font-size:12px;color:var(--c-text-mute);}

/* ============ Zigzag ============ */
.zigzag{
  display:grid;
  gap:28px;
  align-items:center;
  grid-template-columns:1fr;
}
@media(min-width:1024px){
  .zigzag{grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;}
  .zigzag.reverse .zig-media{order:2;}
  .zigzag.reverse .zig-text{order:1;}
}
.zig-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-card);
  background:var(--c-band);
}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.zig-text .tag{margin-bottom:14px;}
.zig-text .h3{font-size:22px;font-weight:700;margin-bottom:14px;}
@media(min-width:768px){.zig-text .h3{font-size:24px;}}
.point-list{display:flex;flex-direction:column;gap:10px;margin:18px 0 22px;}
.point-list li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  color:var(--c-text-sub);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--c-primary);
}
.zig-block + .zig-block{margin-top:56px;}
@media(min-width:1024px){.zig-block + .zig-block{margin-top:80px;}}

/* ============ 流程步骤条 ============ */
.steps{
  display:grid;
  gap:18px;
  grid-template-columns:1fr;
  margin-top:36px;
}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));}}
.step{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-card);
}
.step-num{
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:700;
  font-size:15px;
  margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-text-sub);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:#C9DAF7;box-shadow:var(--sh-card);}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 20px 18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  transition:color .2s ease,background .2s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-primary);
  transform:scaleY(0);
  transition:transform .2s ease;
}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q:hover{background:#FAFCFF;}
.faq-icon{
  flex:0 0 auto;
  width:20px;height:20px;
  position:relative;
  color:var(--c-text-mute);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:currentColor;
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:opacity .2s ease,transform .2s ease;}
.faq-item.is-open .faq-icon{color:var(--c-primary);}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(0);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-sub);
}

/* ============ CTA 面板 ============ */
.cta-panel{
  background:var(--c-primary-soft);
  border:1px solid #C9DAF7;
  border-radius:var(--r-md);
  padding:28px 22px;
  display:flex;
  flex-direction:column;
  gap:18px;
}
@media(min-width:768px){
  .cta-panel{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:32px 36px;
  }
}
.cta-panel .h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.cta-panel p{font-size:14px;color:var(--c-text-sub);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-deep);
  color:#fff;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:56px;
  padding-bottom:110px;
}
.footer-inner{padding-bottom:32px;}
.footer-grid{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.16);box-shadow:none;}
.footer-brand .logo-text{color:#fff;font-size:18px;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:340px;
}
.footer-contact{
  margin-top:16px;
  font-size:13px;
  line-height:1.9;
  color:rgba(255,255,255,.62);
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-link{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-link:hover{color:#fff;padding-left:4px;}
@media(max-width:1023px){.footer-link{padding:11px 0;}}
.footer-search .search-form{
  background:rgba(255,255,255,.10);
  border-color:rgba(255,255,255,.22);
  box-shadow:none;
}
.footer-search .search-form:focus-within{
  border-color:rgba(255,255,255,.6);
  box-shadow:0 0 0 3px rgba(255,255,255,.14);
}
.footer-search .search-form .s-icon{color:rgba(255,255,255,.7);}
.footer-search .search-form input[type="search"]{color:#fff;}
.footer-search .search-form input[type="search"]::placeholder{color:rgba(255,255,255,.6);}
.footer-search .search-btn{background:var(--c-accent);}
.footer-search .search-btn:hover{background:var(--c-accent-hover);}
.footer-tip{
  margin-top:12px;
  font-size:13px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 8px;
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
@media(min-width:768px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}

/* ============ 底部固定转化条 ============ */
.fixed-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  background:#fff;
  border-top:1px solid var(--c-line);
  box-shadow:var(--sh-bar);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom,0px));
  transform:translateY(12px);
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.fixed-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.fixed-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.fixed-bar-text{
  font-size:14px;
  font-weight:500;
  color:var(--c-text-sub);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.fixed-bar .btn{height:42px;padding:0 20px;font-size:14px;}
@media(min-width:768px){
  .fixed-bar{padding:12px 0;}
  .fixed-bar .btn{height:46px;padding:0 26px;font-size:15px;}
}

/* ============ 滚动淡入 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B5FD9;
  --c-primary-deep:#123F91;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF7A2E;
  --c-accent-hover:#E86A1F;
  --c-teal:#12B8A6;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-band:#EEF4FE;
  --c-text:#14213D;
  --c-text-sub:#4A5A76;
  --c-text-mute:#8A98B0;
  --c-line:#E3EAF5;
  --c-danger:#D64545;
  --container:1200px;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-card:0 6px 24px rgba(20,45,90,.08);
  --shadow-hover:0 14px 36px rgba(20,45,90,.14);
  --shadow-nav:0 4px 16px rgba(20,45,90,.08);
  --shadow-bar:0 -6px 20px rgba(20,45,90,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{line-height:1.3;}
:focus-visible{outline:3px solid rgba(27,95,217,.28);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}
@media(min-width:1024px){.container{padding:0 24px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:18px;line-height:1;
  box-shadow:0 4px 12px rgba(27,95,217,.28);
}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--c-text);white-space:nowrap;}
.search-form{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 14px;width:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-pill);
  box-shadow:inset 0 1px 2px rgba(20,45,90,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.20);}
.search-form .s-icon{color:var(--c-text-mute);flex:0 0 auto;}
.search-form input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;font-size:14px;line-height:1.4;}
.search-form input::placeholder{color:var(--c-text-mute);}
.search-btn{
  height:34px;padding:0 18px;border-radius:var(--radius-pill);background:var(--c-primary);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease;flex:0 0 auto;
}
.search-btn:hover{background:var(--c-primary-deep);}
.nav-search{flex:1 1 auto;max-width:520px;margin:0 auto;}
.nav-links{display:flex;align-items:center;gap:26px;flex:0 0 auto;}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--c-text-sub);padding:6px 0;white-space:nowrap;transition:color .2s ease;}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);}
.nav-links a.is-active::after{transform:scaleX(1);}
.mobile-actions{display:none;gap:10px;margin-left:auto;}
.icon-btn{
  width:42px;height:42px;display:grid;place-items:center;background:#fff;
  border:1px solid var(--c-line);border-radius:12px;color:var(--c-text-sub);cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft);}
.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.is-open{display:block;}
.drawer{
  position:fixed;top:72px;left:0;right:0;bottom:0;z-index:55;background:#fff;
  padding:20px 20px 140px;display:flex;flex-direction:column;gap:10px;
  overflow-y:auto;transform:translateX(100%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 18px;
  border-radius:var(--radius-md);background:var(--c-band);font-size:17px;font-weight:600;color:var(--c-text);
}
.drawer-link.is-active{background:var(--c-primary);color:#fff;}
.drawer-cta{margin-top:auto;}
@media(max-width:1023px){
  .nav-search{display:none;}
  .nav-links{display:none;}
  .mobile-actions{display:flex;}
}
@media(min-width:1024px){
  .drawer{display:none;}
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--c-band);
  padding:26px 0 0;border-bottom:1px solid var(--c-line);
}
.page-hero::after{
  content:"";position:absolute;right:-30px;top:-24px;width:260px;height:260px;
  background-image:radial-gradient(rgba(27,95,217,.16) 1.5px,transparent 1.5px);
  background-size:18px 18px;opacity:.5;pointer-events:none;
}
.breadcrumb{position:relative;z-index:1;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--c-text-mute);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-primary);font-weight:500;}
.page-hero h1{
  position:relative;z-index:1;margin-top:16px;font-size:28px;font-weight:700;letter-spacing:.2px;
}
.page-hero .hero-lead{position:relative;z-index:1;margin-top:14px;max-width:720px;font-size:16px;color:var(--c-text-sub);}
.tab-row{position:relative;z-index:1;display:flex;gap:10px;margin-top:24px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.tab-row::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 20px;
  border-radius:var(--radius-pill);border:1px solid var(--c-line);background:#fff;
  color:var(--c-text-sub);font-size:14px;font-weight:500;transition:.2s ease;
}
.tab:hover{border-color:var(--c-primary);color:var(--c-primary);}
.tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.hero-figure{position:relative;z-index:1;margin-top:28px;}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px 14px 0 0;}
@media(min-width:768px){
  .page-hero{padding:34px 0 0;}
  .page-hero h1{font-size:34px;}
  .hero-figure img{aspect-ratio:21/9;border-radius:var(--radius-lg) var(--radius-lg) 0 0;}
}
@media(min-width:1024px){
  .page-hero h1{font-size:40px;max-width:900px;}
}

/* ---------- sections ---------- */
.section{padding:56px 0;}
.section-white{background:#fff;}
.section-band{background:var(--c-band);}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-head{margin-bottom:28px;}
.section-head .badge{margin-bottom:14px;}
.section-head h2{font-size:24px;font-weight:700;letter-spacing:.2px;}
.section-head p{margin-top:12px;font-size:15px;color:var(--c-text-sub);max-width:700px;}
@media(min-width:768px){.section-head h2{font-size:28px;}}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:var(--radius-sm);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;line-height:1;
}
.badge-status{background:#E7F8F5;color:#0E8E80;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-teal);flex:0 0 auto;}

/* ---------- split + toc + timeline ---------- */
.layout-split{display:grid;grid-template-columns:1fr;gap:28px;}
@media(min-width:1024px){.layout-split{grid-template-columns:260px 1fr;gap:48px;}}
.toc{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);padding:20px 16px;
}
@media(min-width:1024px){.toc{position:sticky;top:96px;}}
.toc-title{font-size:12px;font-weight:600;color:var(--c-text-mute);letter-spacing:1px;margin-bottom:12px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:10px 12px;border-left:3px solid transparent;border-radius:6px;
  font-size:14px;color:var(--c-text-sub);transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--c-band);color:var(--c-primary);}
.toc-list a.is-current{border-left-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
@media(max-width:1023px){
  .toc{padding:12px;overflow-x:auto;scrollbar-width:none;}
  .toc::-webkit-scrollbar{display:none;}
  .toc-title{display:none;}
  .toc-list{flex-direction:row;gap:8px;}
  .toc-list a{border-left:0;white-space:nowrap;background:var(--c-band);border-radius:var(--radius-pill);padding:8px 16px;}
  .toc-list a.is-current{background:var(--c-primary);color:#fff;}
}

.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;background:#D6E4FA;}
.tl-item{position:relative;padding-bottom:22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:8px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--c-primary);box-shadow:0 0 0 4px rgba(27,95,217,.10);
}
.tl-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);padding:20px 22px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.tl-num{
  display:inline-grid;place-items:center;height:24px;padding:0 9px;border-radius:var(--radius-sm);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:700;line-height:1;
}
.tl-time{font-size:12px;color:var(--c-text-mute);}
.tl-card h3{margin-top:12px;font-size:19px;font-weight:600;}
.tl-card p{margin-top:8px;font-size:15px;color:var(--c-text-sub);}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.tl-link svg{transition:transform .2s ease;}
.tl-link:hover{text-decoration:underline;}
.tl-link:hover svg{transform:translateX(2px);}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-md);box-shadow:var(--shadow-card);
}
table.compare{width:100%;min-width:680px;border-collapse:collapse;font-size:15px;}
.compare th,.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--c-line);}
.compare thead th{background:var(--c-band);font-size:14px;font-weight:600;color:var(--c-text);}
.compare tbody tr:nth-child(even){background:#FAFCFF;}
.compare tbody tr:last-child td{border-bottom:0;}
.compare td:first-child{font-weight:600;color:var(--c-primary);}

/* ---------- cards ---------- */
.grid-2{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.grid-2{grid-template-columns:repeat(2,1fr);}}
.check-card{
  display:flex;gap:16px;padding:22px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-md);box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.icon-box{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;background:var(--c-primary-soft);
  color:var(--c-primary);display:grid;place-items:center;
}
.check-card h3{font-size:18px;font-weight:600;}
.check-card p{margin-top:8px;font-size:14px;color:var(--c-text-sub);line-height:1.8;}

/* ---------- scenes ---------- */
.scene-list{display:flex;flex-direction:column;gap:16px;}
.scene{
  display:flex;gap:18px;align-items:flex-start;padding:18px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--radius-md);box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.scene img{width:132px;flex:0 0 auto;aspect-ratio:4/3;object-fit:cover;border-radius:10px;}
.scene h3{margin-top:10px;font-size:18px;font-weight:600;}
.scene p{margin-top:8px;font-size:14px;color:var(--c-text-sub);line-height:1.8;}
.scene .scene-tip{margin-top:10px;font-size:13px;color:var(--c-primary);font-weight:500;}
@media(max-width:560px){
  .scene{flex-direction:column;}
  .scene img{width:100%;aspect-ratio:16/9;}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  position:relative;margin-bottom:12px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-card);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .25s ease;}
.faq-icon::before{left:3px;right:3px;top:9px;height:2px;}
.faq-icon::after{top:3px;bottom:3px;left:9px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--c-text-sub);}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- cta panel ---------- */
.cta-panel{
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
  padding:28px;background:var(--c-band);border:1px solid var(--c-primary);
  border-radius:var(--radius-lg);
}
.cta-panel h2{font-size:22px;font-weight:700;}
.cta-panel p{margin-top:10px;font-size:15px;color:var(--c-text-sub);max-width:580px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
@media(min-width:768px){.cta-panel{padding:36px 40px;}.cta-panel h2{font-size:26px;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border:1px solid transparent;border-radius:var(--radius-pill);font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,46,.26);}
.btn-accent:hover{background:var(--c-accent-hover);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover svg{transform:translateX(2px);}
@media(max-width:640px){.btn{height:44px;padding:0 20px;font-size:14px;}}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--c-line);box-shadow:var(--shadow-bar);
  padding-bottom:env(safe-area-inset-bottom);
  transform:translateY(110%);opacity:0;pointer-events:none;
  transition:transform .3s ease,opacity .3s ease;
}
.sticky-bar.is-visible{transform:translateY(0);opacity:1;pointer-events:auto;}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.sticky-text{font-size:14px;font-weight:500;color:var(--c-text-sub);}
@media(max-width:640px){
  .sticky-inner{height:62px;}
  .sticky-text{font-size:13px;}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-primary-deep);color:#fff;padding:60px 0 0;
  border-top:1px solid rgba(255,255,255,.14);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.5fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;}
.footer-desc{margin-top:16px;max-width:320px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-contact{margin-top:16px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-title{margin-bottom:14px;font-size:14px;font-weight:600;color:#fff;}
.footer-link{display:block;padding:8px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease;}
.footer-link:hover{color:#fff;}
@media(max-width:767px){.footer-link{padding:12px 0;}}
.footer-search .search-form{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.20);box-shadow:none;}
.footer-search .search-form input{color:#fff;}
.footer-search .search-form input::placeholder{color:rgba(255,255,255,.55);}
.footer-search .s-icon{color:rgba(255,255,255,.65);}
.footer-search .search-btn{background:var(--c-accent);}
.footer-search .search-btn:hover{background:var(--c-accent-hover);}
.footer-tip{margin-top:12px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  margin-top:40px;padding:20px 0 96px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.62);
}