/* roulang page: index */
:root{
  --brand:#1F5A7A;
  --brand-dark:#17475F;
  --brand-soft:#E7F0F5;
  --accent:#E0454F;
  --gold:#C8912F;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --ink:#1C2430;
  --muted:#5A6B7C;
  --weak:#8C9AA6;
  --line:#E6EBF0;
  --dark:#12303F;
  --ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(28,36,48,.04), 0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.wrap{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}
.sec{padding:96px 0}
.sec-alt{background:var(--card)}
.sec-tint{background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FB 100%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--brand);
  background:var(--brand-soft);border:1px solid #CFE1EB;border-radius:999px;
  padding:6px 14px;line-height:1.4;
}
.h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.h2{font-size:30px;line-height:1.3;font-weight:700}
.h3{font-size:20px;line-height:1.45;font-weight:600}
.h4{font-size:17px;line-height:1.5;font-weight:600}
.lead{font-size:17px;line-height:1.8;color:var(--muted)}
.body-t{font-size:16px;line-height:1.8;color:var(--muted)}
.small{font-size:13px;line-height:1.6;color:var(--weak)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head .h2{margin:16px 0 14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:all .18s ease;border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand);border-color:#CFE1EB}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--dark)}
.btn-light:hover{background:#EAF1F6;transform:translateY(-1px)}
.btn:focus-visible,.chip:focus-visible,.navlink:focus-visible{outline:2px solid #9CC3D8;outline-offset:2px}
.link-more{color:var(--brand);font-size:15px;font-weight:600;border-bottom:1px solid transparent;transition:all .18s ease;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--accent);border-bottom-color:var(--accent)}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  transition:all .18s ease;line-height:1.4;
}
.chip:hover{background:#F0F4F7;color:var(--brand)}
.chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1.4;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
}
.badge-accent{background:#FCE9EA;color:var(--accent)}
.badge-gold{background:#FBF2DF;color:var(--gold)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  overflow:hidden;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E3EB}
.card-pad{padding:24px}
.thumb{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:#E9EFF3}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .thumb img{transform:scale(1.03)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .18s ease}
.card:hover .card-title{color:var(--brand)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.brandbar{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:21px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.logo .lg-a{color:var(--brand)}
.logo .lg-dot{width:6px;height:6px;border-radius:999px;background:var(--accent);margin:0 4px 3px}
.logo .lg-b{color:var(--ink)}
.brand-actions{display:flex;align-items:center;gap:18px}
.brand-actions .tlink{font-size:14px;font-weight:500;color:var(--muted);transition:color .18s ease}
.brand-actions .tlink:hover{color:var(--brand)}
.brand-actions .btn{height:40px;padding:0 18px;font-size:14px}
.channelbar{background:#FBFCFD;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channelbar .inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar .inner::-webkit-scrollbar{display:none}
.channelbar .sep{width:1px;height:18px;background:var(--line);flex:0 0 auto}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--ink)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0 18px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:12px 20px;font-size:15px;color:var(--muted);border-left:3px solid transparent}
.mobile-panel a.active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-soft)}

/* hero */
.hero{padding:72px 0 80px;background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FB 100%)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero-title{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero-title .hl{color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 30px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px}
.trust-item i{color:var(--brand)}
.hero-media{position:relative}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.float-card{
  position:absolute;left:-16px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--sh-3);padding:14px 18px;min-width:180px;
}
.float-card .fc-t{font-size:13px;color:var(--weak);margin-bottom:4px}
.float-card .fc-n{font-size:22px;font-weight:700;color:var(--brand);line-height:1.2}

/* pain */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);position:relative}
.quote-card .qm{font-size:34px;line-height:1;color:#CFE1EB;font-weight:700;margin-bottom:8px}
.quote-card p{font-size:16px;line-height:1.8;color:var(--ink);margin-bottom:16px}
.quote-src{font-size:13px;color:var(--weak);border-top:1px solid var(--line);padding-top:12px}

/* steps */
.zig{display:grid;gap:56px}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.zig-row.rev .zig-text{order:2}
.zig-row.rev .zig-media{order:1}
.step-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--gold);background:#FBF2DF;border-radius:999px;padding:5px 12px;margin-bottom:14px}
.zig-text .h3{margin-bottom:12px}
.zig-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.step-list{margin-top:14px;display:grid;gap:8px}
.step-list li{font-size:15px;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.step-list li i{color:var(--ok);margin-top:5px;font-size:12px}

/* stats */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:44px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.stat .num{font-size:34px;font-weight:700;color:var(--brand);line-height:1.15;letter-spacing:-.02em}
.stat .num span{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px}
.stat .cap{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.6}
.wide-figure{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);background:#fff}
.wide-figure img{width:100%;aspect-ratio:21/9;object-fit:cover}
.wide-figure figcaption{font-size:13px;color:var(--weak);padding:14px 20px;background:#fff}

/* testimonial */
.tm-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.tm-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.tm-card .qm{font-size:30px;color:#CFE1EB;font-weight:700;line-height:1}
.tm-card p{font-size:16px;color:var(--ink);line-height:1.8;margin:10px 0 20px}
.tm-user{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex:0 0 auto}
.tm-user .nm{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4}
.tm-user .rl{font-size:13px;color:var(--weak);line-height:1.4}

/* list */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.meta-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.meta-row .t{font-size:12.5px;color:var(--weak)}
.meta-row .go{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.card:hover .meta-row .go{color:var(--accent)}
.empty-box{
  border:1px dashed #C9D7E0;border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;color:var(--weak);
}
.empty-box i{font-size:26px;color:#BDCED8;display:block;margin-bottom:12px}
.empty-box p{font-size:15px;margin-bottom:18px}

/* faq */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease,border-color .18s ease}
.faq-item[open]{box-shadow:var(--sh-1);border-color:#D6E3EB}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:60px;padding:16px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sq{width:8px;height:8px;border-radius:2px;background:var(--brand);flex:0 0 auto}
.faq-item summary .ic{margin-left:auto;color:var(--brand);font-size:14px;transition:transform .2s ease}
.faq-item[open] summary .ic{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px 44px;border-top:1px solid var(--line);margin-top:0;padding-top:16px}
.faq-body p{font-size:15px;line-height:1.8;color:var(--muted)}

/* cta */
.cta-band{background:var(--dark);color:#fff;border-radius:var(--r-card);padding:56px 52px;display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-band .h2{color:#fff;margin-bottom:12px}
.cta-band p{color:#A9BCC7;font-size:16px;line-height:1.8;max-width:560px}
.cta-deco{position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:999px;background:rgba(31,90,122,.35)}
.cta-right{position:relative;z-index:2;display:flex;justify-content:flex-end}

/* footer */
.site-footer{background:var(--dark);color:#A9BCC7;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo .lg-b{color:#fff}
.footer-brand p{font-size:13.5px;line-height:1.8;margin-top:14px;color:#94A9B6;max-width:300px}
.f-col h4{font-size:14px;font-weight:600;color:#E7EEF3;margin-bottom:16px}
.f-col a,.f-col li{display:block;font-size:13px;color:#A9BCC7;margin-bottom:10px;transition:all .18s ease}
.f-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:#8C9AA6}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:34px}
  .h1{font-size:34px}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:44px 36px}
  .cta-right{justify-content:flex-start}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .sec{padding:56px 0}
  .hero{padding:44px 0 56px}
  .hero-title{font-size:28px}
  .h1{font-size:28px}
  .h2{font-size:22px}
  .h3{font-size:18px}
  .pain-grid,.tm-grid,.zig-row{grid-template-columns:1fr;gap:20px}
  .zig-row.rev .zig-text{order:1}
  .zig-row.rev .zig-media{order:2}
  .grid3{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .list-head{flex-direction:column;align-items:flex-start;gap:12px}
  .brand-actions .tlink{display:none}
  .channelbar{display:none}
  .burger{display:flex}
  .float-card{left:12px;bottom:12px;padding:12px 14px;min-width:150px}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px}
  .faq-body{padding-left:22px}
  .site-footer{margin-top:56px}
}

/* roulang page: article */
:root{
  --c-primary:#1F5A7A;
  --c-primary-d:#17475F;
  --c-primary-l:#E7F0F5;
  --c-accent:#E0454F;
  --c-gold:#C8912F;
  --c-bg:#F7F9FB;
  --c-card:#FFFFFF;
  --c-dark:#12303F;
  --c-ink:#1C2430;
  --c-sub:#5A6B7C;
  --c-mute:#8C9AA6;
  --c-line:#E6EBF0;
  --c-ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(28,36,48,.04), 0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease, background-color .18s ease, border-color .18s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

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

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60}
.brandbar{background:#fff;border-bottom:1px solid var(--c-line)}
.brandbar .row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:inline-flex;align-items:center;font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.logo .lg-a{color:var(--c-ink)}
.logo .lg-dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin:0 4px 2px;display:inline-block}
.logo .lg-b{color:var(--c-primary);font-weight:600}
.brand-actions{display:flex;align-items:center;gap:14px}
.link-quiet{font-size:14px;color:var(--c-sub);font-weight:500}
.link-quiet:hover{color:var(--c-primary)}
.menu-btn{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);color:var(--c-ink);font-size:16px;align-items:center;justify-content:center}
.menu-btn:hover{background:var(--c-primary-l);color:var(--c-primary);border-color:var(--c-primary)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;transition:all .18s ease;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(28,36,48,.08)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--c-dark)}
.btn-light:hover{background:#EAF2F6;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

.channelbar{background:#fff;border-bottom:1px solid var(--c-line)}
.channelbar .inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar .inner::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:500;color:var(--c-sub);border:1px solid transparent;white-space:nowrap;transition:all .18s ease}
.chip i{font-size:12.5px;opacity:.85}
.chip:hover{background:#F0F4F7;color:var(--c-ink)}
.chip.active{background:var(--c-primary-l);color:var(--c-primary);border-color:var(--c-primary);font-weight:600}
.sep{flex:none;width:1px;height:18px;background:var(--c-line);margin:0 6px}

.mobile-panel{display:none;background:#fff;border-bottom:1px solid var(--c-line);padding:8px 0 14px}
.mobile-panel.open{display:block}
.m-item{display:block;padding:12px 20px;font-size:15px;color:var(--c-sub);border-left:3px solid transparent}
.m-item:hover{background:#F5F8FA;color:var(--c-ink)}
.m-item.active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-l);font-weight:600}
.mobile-panel .btn{margin:12px 20px 0;width:calc(100% - 40px)}

/* ---------- article ---------- */
.article-area{padding:36px 0 72px}
.crumb{font-size:13px;color:var(--c-mute);display:flex;flex-wrap:wrap;align-items:center;gap:8px;max-width:720px;margin:0 auto 22px}
.crumb a{color:var(--c-sub)}
.crumb a:hover{color:var(--c-primary)}
.crumb .cur{color:var(--c-mute);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb i{font-size:9px;color:#C3CDD6}

.article-head{max-width:720px;margin:0 auto;padding-bottom:22px}
.tag-cat{display:inline-flex;align-items:center;gap:6px;background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:999px}
.article-head h1{font-size:44px;line-height:1.25;margin:16px 0 0;letter-spacing:.2px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--c-mute)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .divider{width:1px;height:12px;background:#D8E0E6;display:inline-block;padding:0}
.rule{height:1px;background:var(--c-line);max-width:720px;margin:0 auto}

.reading{max-width:720px;margin:0 auto}
.prose-cn{padding-top:26px;font-size:16px;color:#26313C}
.prose-cn > * + *{margin-top:1.15em}
.prose-cn p{line-height:1.85}
.prose-cn h2{font-size:27px;font-weight:700;line-height:1.35;margin-top:44px;padding-left:14px;position:relative;color:var(--c-ink)}
.prose-cn h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c-primary)}
.prose-cn h3{font-size:20px;font-weight:600;margin-top:32px;color:var(--c-ink)}
.prose-cn h4{font-size:17px;font-weight:600;margin-top:26px;color:var(--c-ink)}
.prose-cn ul,.prose-cn ol{padding-left:1.4em;list-style:revert}
.prose-cn li{margin:8px 0;line-height:1.8}
.prose-cn li::marker{color:var(--c-primary)}
.prose-cn blockquote{margin:24px 0;padding:16px 20px;background:#F3F7F9;border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--c-sub);font-size:15.5px}
.prose-cn blockquote p + p{margin-top:.8em}
.prose-cn img{width:100%;height:auto;border-radius:12px;margin:24px 0;box-shadow:var(--sh-1)}
.prose-cn figure{margin:24px 0}
.prose-cn figcaption{font-size:12px;color:var(--c-mute);text-align:center;margin-top:8px}
.prose-cn a{color:var(--c-primary);border-bottom:1px solid var(--c-accent);padding-bottom:1px}
.prose-cn a:hover{color:#fff;background:var(--c-accent);border-bottom-color:var(--c-accent)}
.prose-cn table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.prose-cn th{background:#F3F7F9;text-align:left;font-weight:600;color:var(--c-ink)}
.prose-cn th,.prose-cn td{padding:11px 12px;border-bottom:1px solid var(--c-line)}
.prose-cn code{background:#EFF3F6;border-radius:6px;padding:2px 6px;font-size:14px}
.prose-cn hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

.empty-state{max-width:720px;margin:20px auto 0;border:1px dashed #CBD7DF;border-radius:var(--r-card);background:#fff;padding:56px 24px;text-align:center}
.empty-state i{font-size:28px;color:var(--c-mute)}
.empty-state h2{font-size:20px;font-weight:600;margin:14px 0 8px;color:var(--c-ink)}
.empty-state p{font-size:14.5px;color:var(--c-sub);margin-bottom:20px}

.tagrow{max-width:720px;margin:36px auto 0;display:flex;flex-wrap:wrap;gap:10px;padding-top:22px;border-top:1px solid var(--c-line)}
.tagrow .t{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-sub);background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:7px 14px}
.tagrow .t:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}

.backbar{max-width:720px;margin:28px auto 0;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- related ---------- */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.sec-head h2{font-size:28px;font-weight:700}
.sec-head p{font-size:14px;color:var(--c-sub);margin-top:8px}
.sec-more{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.sec-more:hover{color:var(--c-primary-d)}
.sec-more i{font-size:11px;margin-left:6px}

.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.post-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D7E3EB}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF2F5}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;font-size:11.5px;font-weight:600;padding:4px 11px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary)}
.badge.warm{background:#FDEDEE;color:var(--c-accent)}
.post-card h3{font-size:17.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover h3{color:var(--c-primary)}
.post-card .desc{font-size:14px;color:var(--c-sub);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--c-mute)}
.card-meta .go{color:var(--c-primary);font-weight:600}
.card-meta .go i{font-size:10px;margin-left:5px}

/* ---------- cta ---------- */
.cta-band{background:var(--c-dark);color:#fff;position:relative;overflow:hidden}
.cta-band .inner{padding:64px 0;display:flex;align-items:center;justify-content:space-between;gap:36px;position:relative;z-index:2}
.cta-band h2{font-size:28px;color:#fff}
.cta-band p{margin-top:12px;font-size:15px;color:#B6C7D1;max-width:640px}
.cta-deco{position:absolute;right:-60px;top:-70px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.10);z-index:1}
.cta-deco.two{right:40px;top:90px;width:180px;height:180px;border-color:rgba(255,255,255,.07)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:#C4D3DC;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .lg-a{color:#fff}
.footer-brand .lg-b{color:#7FB6D1}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#9FB4C0;max-width:320px}
.f-col h4{font-size:14px;font-weight:600;color:#EAF2F6;margin-bottom:16px}
.f-col a{display:block;font-size:13px;color:#A9BCC7;padding:6px 0;transition:all .18s ease}
.f-col a:hover{color:#fff;transform:translateX(2px)}
.f-col ul li{font-size:13px;color:#A9BCC7;line-height:1.8;padding:6px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#8FA5B1}

.totop{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--c-line);color:var(--c-primary);box-shadow:var(--sh-1);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:all .2s ease;z-index:70}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-head h1{font-size:34px}
  .section{padding:60px 0}
}
@media (max-width:899px){
  .brand-actions .link-quiet,.brand-actions .btn{display:none}
  .menu-btn{display:inline-flex}
}
@media (max-width:767px){
  .grid-3{grid-template-columns:1fr}
  .article-area{padding:24px 0 56px}
  .article-head h1{font-size:28px;line-height:1.32}
  .prose-cn{font-size:15px}
  .prose-cn h2{font-size:22px;margin-top:34px}
  .prose-cn h3{font-size:18px}
  .sec-head{flex-direction:column;align-items:flex-start}
  .sec-head h2{font-size:22px}
  .cta-band .inner{padding:48px 0;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
  .footer-brand p{max-width:none}
  .section{padding:52px 0}
  .totop{right:16px;bottom:18px}
  .crumb .cur{max-width:180px}
}
@media (max-width:520px){
  .meta-row{gap:10px;font-size:12.5px}
  .meta-row .divider{display:none}
  .tagrow .t{font-size:12.5px;padding:6px 12px}
}

/* roulang page: category1 */
:root{
  --brand:#1F5A7A;
  --brand-dark:#17475F;
  --brand-soft:#E7F0F5;
  --accent:#E0454F;
  --accent-soft:#FDECEE;
  --gold:#C8912F;
  --gold-soft:#FBF3E2;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --dark:#12303F;
  --ink:#1C2430;
  --sub:#5A6B7C;
  --muted:#8C9AA6;
  --line:#E6EBF0;
  --ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,36,48,.04),0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:60}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:baseline;font-size:20px;font-weight:700;letter-spacing:.2px;line-height:1}
.logo .lg-a{color:var(--brand)}
.logo .lg-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;margin:0 6px;transform:translateY(-3px)}
.logo .lg-b{color:var(--ink)}
.brand-links{display:flex;align-items:center;gap:18px}
.ghost-link{font-size:14px;color:var(--sub);padding:6px 2px;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.ghost-link:hover{color:var(--brand);border-bottom-color:var(--accent)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand);align-items:center;justify-content:center;transition:background .18s,border-color .18s}
.menu-toggle:hover{background:var(--brand-soft);border-color:var(--brand)}

.channelbar{background:#fff;border-top:1px solid var(--line)}
.channelbar .inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar .inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:14px;font-weight:500;color:var(--sub);
  white-space:nowrap;transition:background .18s,color .18s,border-color .18s;
}
.chip:hover{background:#F1F5F8;color:var(--brand)}
.chip.active{background:var(--brand-soft);color:var(--brand);border-color:var(--brand);font-weight:600}
.chip i{font-size:13px;opacity:.9}
.sep{width:1px;height:20px;background:var(--line);margin:0 6px;flex:none}

.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:6px 0 10px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:13px 32px;font-size:15px;color:var(--sub);border-left:3px solid transparent;transition:background .18s,color .18s}
.mobile-panel a:hover{background:#F4F8FA;color:var(--brand)}
.mobile-panel a.active{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600}

/* ---------- hero ---------- */
.cat-hero{background:#fff;border-bottom:1px solid var(--line);padding:44px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.crumbs a{color:var(--muted);transition:color .18s}
.crumbs a:hover{color:var(--brand)}
.crumbs .now{color:var(--sub)}
.crumbs i{font-size:10px}
.cat-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin:16px 0 12px}
.cat-hero .lead{font-size:17px;color:var(--sub);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.trust span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--sub)}
.trust i{color:var(--brand);font-size:13px}
.hero-thumb{position:relative}
.hero-thumb .frame{aspect-ratio:3/2;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line)}
.hero-thumb .frame img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--sh-3);min-width:160px;
}
.float-card strong{display:block;font-size:20px;color:var(--brand);font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums}
.float-card em{font-style:normal;font-size:12.5px;color:var(--muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
}
.btn i{font-size:13px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(31,90,122,.24)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-light{background:#fff;color:var(--dark)}
.btn-light:hover{background:#E7F0F5;transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}

/* ---------- layout ---------- */
.page-body{padding:40px 0 8px}
.switch-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:16px 18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:36px}
.switch-card .label{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.04em}

.doc-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;align-items:start}
.toc{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 16px;box-shadow:var(--sh-1);position:sticky;top:24px;
}
.toc h3{font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:12px;padding-left:10px}
.toc a{
  display:block;font-size:14px;color:var(--sub);
  padding:9px 10px;border-radius:8px;border-left:3px solid transparent;
  transition:background .18s,color .18s,border-color .18s;
}
.toc a:hover{background:var(--brand-soft);color:var(--brand)}
.toc a.on{border-left-color:var(--brand);color:var(--brand);background:var(--brand-soft);font-weight:600}
.toc .toc-note{margin-top:14px;padding:12px 10px 0;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);line-height:1.7}

.doc-body section{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 30px;box-shadow:var(--sh-1);margin-bottom:24px;scroll-margin-top:24px;
}
.sec-title{font-size:26px;font-weight:700;line-height:1.3;position:relative;padding-left:16px;margin-bottom:14px}
.sec-title::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:.92em;background:var(--brand);border-radius:2px}
.sub-title{font-size:18px;font-weight:600;margin:24px 0 8px;color:var(--ink)}
.doc-body p{font-size:16px;line-height:1.85;color:#33404F;margin-bottom:14px}
.doc-body p:last-child{margin-bottom:0}
.list-dot li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15.5px;line-height:1.8;color:#33404F}
.list-dot li::before{content:"";position:absolute;left:3px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--gold)}
.list-dot li strong{color:var(--ink)}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);line-height:1.6}
.badge.accent{background:var(--accent-soft);color:var(--accent)}
.badge.gold{background:var(--gold-soft);color:#9C6F19}
.badge.mute{background:#EEF2F5;color:var(--sub)}

.note{background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 10px 10px 0;padding:16px 18px;font-size:14.5px;color:#2B4358;line-height:1.8;margin-top:18px}

/* flow */
.flow{margin-top:8px}
.flow-item{display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;position:relative;padding-bottom:26px}
.flow-item::before{content:"";position:absolute;left:27px;top:52px;bottom:4px;width:1px;background:var(--line)}
.flow-item:last-child{padding-bottom:0}
.flow-item:last-child::before{display:none}
.flow-num{
  width:56px;height:56px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
  font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17.5px;font-weight:600;margin-bottom:6px}
.flow-item p{font-size:15px;color:var(--sub);margin-bottom:0}

/* scene cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E4EC}
.card h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.card p{font-size:14.5px;color:var(--sub);line-height:1.8}
.card .ico{width:40px;height:40px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:700;line-height:1.3}
.section-head p{font-size:15px;color:var(--sub);max-width:560px;margin-top:8px}
.block-gap{margin-top:56px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.split .img-frame{aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.split .img-frame img{width:100%;height:100%;object-fit:cover}

/* faq */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .18s,border-color .18s}
.faq-item:hover{box-shadow:var(--sh-1);border-color:#D6E4EC}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .idx{flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.faq-item .chev{margin-left:auto;color:var(--muted);font-size:13px;transition:transform .2s}
.faq-item[open] .chev{transform:rotate(180deg)}
.faq-item[open] summary{color:var(--brand)}
.faq-body{padding:16px 20px 20px 60px;border-top:1px solid var(--line);font-size:15px;color:var(--sub);line-height:1.8}

/* cta */
.cta-band{
  background:var(--dark);border-radius:20px;padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;position:relative;overflow:hidden;margin-top:56px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(200,145,47,.14);
}
.cta-band h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:10px;line-height:1.3}
.cta-band p{color:#B9CAD4;font-size:15px;margin-bottom:0;max-width:560px}
.cta-band .btn{position:relative;z-index:2;flex:none}

/* footer */
.site-footer{background:var(--dark);color:#A9BCC7;margin-top:72px;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand .logo .lg-a{color:#8FC4DC}
.footer-brand .logo .lg-b{color:#fff}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#A9BCC7;margin-top:14px;max-width:330px}
.f-col h4{font-size:14px;font-weight:600;color:#E4EEF3;margin-bottom:14px}
.f-col a{display:block;font-size:13px;color:#A9BCC7;padding:5px 0;transition:color .18s,transform .18s}
.f-col a:hover{color:#fff;transform:translateX(2px)}
.f-col ul{font-size:13px;line-height:2}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:12.5px;color:#8FA6B2}

/* responsive */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .cat-hero h1{font-size:32px}
  .doc-layout{grid-template-columns:1fr;gap:24px}
  .toc{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:24px}
}
@media (max-width:899px){
  .brand-links{display:none}
  .menu-toggle{display:inline-flex}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .cat-hero{padding:30px 0 32px}
  .cat-hero h1{font-size:28px}
  .cat-hero .lead{font-size:15.5px}
  .doc-body section{padding:22px 20px}
  .sec-title{font-size:22px}
  .section-head h2{font-size:24px}
  .grid-3{grid-template-columns:1fr}
  .flow-item{grid-template-columns:46px minmax(0,1fr);gap:14px}
  .flow-num{width:46px;height:46px;border-radius:12px;font-size:16px}
  .flow-item::before{left:22px;top:44px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .float-card{left:12px;bottom:-14px;padding:10px 14px;min-width:140px}
  .trust{gap:12px}
  .faq-body{padding-left:20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F5A7A;
  --c-primary-dark:#17475F;
  --c-primary-soft:#E7F0F5;
  --c-accent:#E0454F;
  --c-accent-soft:#FCEAEB;
  --c-gold:#C8912F;
  --c-bg:#F7F9FB;
  --c-card:#FFFFFF;
  --c-deep:#12303F;
  --c-ink:#1C2430;
  --c-sub:#5A6B7C;
  --c-mute:#8C9AA6;
  --c-line:#E6EBF0;
  --c-ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,36,48,.04),0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 顶部品牌行 ============ */
.brandbar{background:#fff;border-bottom:1px solid var(--c-line)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:inline-flex;align-items:center;font-size:20px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.logo .lg-a{color:var(--c-primary);font-family:Inter,Helvetica,Arial,sans-serif}
.logo .lg-dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin:0 9px}
.logo .lg-b{color:var(--c-ink)}
.brandbar-actions{display:flex;align-items:center;gap:18px}
.quiet-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-sub);transition:color .18s ease}
.quiet-link:hover{color:var(--c-primary)}
.quiet-link i{font-size:13px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;line-height:1.2;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;padding:12px 22px;font-size:15px;box-shadow:0 1px 2px rgba(28,36,48,.08)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,90,122,.28)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);padding:12px 22px;font-size:15px}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,90,122,.22)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-light{background:#fff;color:var(--c-primary);padding:13px 24px;font-size:15px}
.btn-light:hover{background:#EAF2F7;transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,0,0,.18)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);padding:13px 24px;font-size:15px}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-light:focus-visible,.btn-outline-light:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:4px;transition:background-color .18s ease}
.menu-toggle:hover{background:#F1F4F7}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink)}

/* ============ 频道行 ============ */
.channelbar{background:#fff;border-bottom:1px solid var(--c-line)}
.channelbar .inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar .inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:500;color:var(--c-sub);border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:#F1F4F7;color:var(--c-primary)}
.chip.active{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary);font-weight:600}
.chip i{font-size:12.5px;opacity:.9}
.sep{width:1px;height:20px;background:var(--c-line);flex:0 0 auto;margin:0 4px}
.mobile-panel{display:none;background:#fff;border-bottom:1px solid var(--c-line);padding:6px 0 14px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:12px 20px;font-size:15px;color:var(--c-sub);border-left:3px solid transparent;transition:background-color .15s ease,color .15s ease}
.mobile-panel a:hover{background:#F4F7FA;color:var(--c-primary)}
.mobile-panel a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);border-left-color:var(--c-primary)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.white{background:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:36px}
.sec-title{font-size:30px;color:var(--c-ink);letter-spacing:-.2px}
.sec-sub{margin-top:10px;font-size:15px;color:var(--c-sub)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow i{font-size:12px}

/* ============ 页面顶部 ============ */
.page-hero{background:#fff;border-bottom:1px solid var(--c-line);padding:28px 0 56px}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-mute);margin-bottom:26px;flex-wrap:wrap}
.crumb a{color:var(--c-mute);transition:color .18s ease}
.crumb a:hover{color:var(--c-primary)}
.crumb i{font-size:10px;opacity:.7}
.crumb .now{color:var(--c-sub);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.h1{font-size:42px;line-height:1.25;letter-spacing:-.4px;margin-top:18px;color:var(--c-ink)}
.h1 em{font-style:normal;color:var(--c-primary)}
.lede{margin-top:16px;font-size:16.5px;color:var(--c-sub);max-width:560px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-chips .chip{border-color:var(--c-line);background:#fff}
.hero-chips .chip:hover{border-color:var(--c-primary);background:#fff}
.hero-chips .chip.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.hero-media{height:250px;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);position:relative}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .float-card{
  position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.96);border-radius:12px;
  padding:12px 16px;box-shadow:var(--sh-2);backdrop-filter:blur(4px);
}
.hero-media .float-card b{display:block;font-size:13px;color:var(--c-sub);font-weight:600}
.hero-media .float-card strong{display:block;font-size:22px;color:var(--c-primary);font-family:Inter,Helvetica,Arial,sans-serif;line-height:1.3}

/* ============ 数字速览 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.stat-num{font-size:38px;font-weight:700;color:var(--c-primary);line-height:1;font-family:Inter,Helvetica,Arial,sans-serif}
.stat-num small{font-size:15px;font-weight:600;color:var(--c-sub);margin-left:5px}
.stat-card p{margin-top:12px;font-size:14px;color:var(--c-sub);line-height:1.7}

/* ============ 图文交错 ============ */
.zig-list{margin-top:8px}
.zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zig + .zig{margin-top:80px}
.zig.reverse .zig-media{order:2}
.zig-media{aspect-ratio:3/2;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);background:#EAF0F4}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.zig-media:hover img{transform:scale(1.03)}
.step-badge{
  display:inline-flex;align-items:center;gap:8px;font-family:Inter,Helvetica,Arial,sans-serif;
  font-size:13px;font-weight:700;color:var(--c-gold);letter-spacing:1px;
}
.step-badge::after{content:"";width:28px;height:1px;background:var(--c-gold);opacity:.6}
.zig h3{margin-top:12px;font-size:22px;color:var(--c-ink)}
.zig .zig-text{margin-top:14px;font-size:15.5px;color:var(--c-sub);line-height:1.85}
.point-list{margin-top:20px;display:grid;gap:10px}
.point-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--c-sub)}
.point-list i{color:var(--c-primary);font-size:13px;margin-top:6px}

/* ============ 表格 ============ */
.table-shell{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.table-scroll{overflow-x:auto}
.spec-table{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
.spec-table th{
  background:#F2F6F9;text-align:left;font-weight:600;font-size:13.5px;color:var(--c-sub);
  padding:15px 22px;border-bottom:1px solid var(--c-line);letter-spacing:.3px;white-space:nowrap;
}
.spec-table td{padding:15px 22px;border-bottom:1px solid var(--c-line);color:var(--c-sub);font-size:14.5px}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tbody tr{transition:background-color .18s ease}
.spec-table tbody tr:hover{background:#FAFCFD}
.spec-table td:first-child{color:var(--c-ink);font-weight:600;white-space:nowrap}
.tag{display:inline-block;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary)}
.tag.warn{background:var(--c-accent-soft);color:var(--c-accent)}
.tag.gold{background:#FBF2DF;color:#9A6E17}

/* ============ 误区卡 ============ */
.tip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tip-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.tip-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-accent);opacity:.85}
.tip-card:nth-child(2)::before{background:var(--c-primary)}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tip-card h3{font-size:18px;margin-bottom:12px}
.tip-card p{font-size:14.5px;color:var(--c-sub);line-height:1.85}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#CFDCE4}
.faq-item[open]{border-color:var(--c-primary);box-shadow:var(--sh-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;padding:16px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(31,90,122,.22)}
.faq-mark{position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-primary-soft);transition:background-color .2s ease}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-mark::before{width:11px;height:2px}
.faq-mark::after{width:2px;height:11px;transition:transform .2s ease,opacity .2s ease}
.faq-item[open] .faq-mark{background:var(--c-primary)}
.faq-item[open] .faq-mark::before{background:#fff}
.faq-item[open] .faq-mark::after{opacity:0;transform:translate(-50%,-50%) scaleY(0)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-body{padding:0 22px 22px;border-top:1px solid var(--c-line);padding-top:18px;font-size:15px;color:var(--c-sub);line-height:1.9}

/* ============ CTA ============ */
.cta{
  background:var(--c-deep);border-radius:18px;padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
}
.cta::before{
  content:"";position:absolute;right:40px;bottom:-100px;width:190px;height:190px;border-radius:50%;
  background:rgba(31,90,122,.35);
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:28px;color:#fff}
.cta-copy p{margin-top:12px;font-size:15px;color:#A9BCC7;line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:#A9BCC7;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{font-size:19px;display:inline-flex;align-items:center}
.footer-brand .logo .lg-a{color:#8FC3DC}
.footer-brand .logo .lg-b{color:#fff}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:#8FA6B3;max-width:320px}
.f-col h4{font-size:14px;font-weight:600;color:#E4EDF2;margin-bottom:16px;letter-spacing:.3px}
.f-col a{display:block;font-size:13.5px;color:#A9BCC7;padding:6px 0;transition:color .18s ease,transform .18s ease}
.f-col a:hover{color:#fff;transform:translateX(2px)}
.f-col ul li{font-size:13.5px;color:#8FA6B3;padding:6px 0;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E96A3}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{height:220px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .zig{gap:36px}
  .zig + .zig{margin-top:60px}
}
@media (max-width:900px){
  .channelbar{display:none}
  .menu-toggle{display:inline-flex}
  .brandbar-actions .quiet-link{display:none}
  .section{padding:64px 0}
  .section.tight{padding:48px 0}
  .sec-title{font-size:24px}
  .h1{font-size:30px}
  .zig,.zig.reverse{grid-template-columns:1fr}
  .zig.reverse .zig-media{order:0}
  .cta{flex-direction:column;align-items:flex-start;padding:36px 26px}
  .cta-copy h2{font-size:23px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .stat-grid{grid-template-columns:1fr}
  .tip-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .h1{font-size:28px}
  .lede{font-size:15.5px}
  .hero-media{height:200px}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .stat-num{font-size:32px}
}

/* roulang page: category3 */
:root{
  --brand:#1F5A7A;
  --brand-dark:#17475F;
  --brand-soft:#E7F0F5;
  --accent:#E0454F;
  --gold:#C8912F;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --dark:#12303F;
  --ink:#1C2430;
  --ink2:#5A6B7C;
  --ink3:#8C9AA6;
  --line:#E6EBF0;
  --ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(28,36,48,.04), 0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;border:none;background:none;cursor:pointer;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.15em;}
h1,h2,h3,h4{margin:0;line-height:1.3;}
a,button,.chip,.card,.ev-card,.tl-card,.flow-item,.metric{transition:all .18s ease;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.brandbar{background:#fff;border-bottom:1px solid var(--line);}
.brandbar-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.logo{display:inline-flex;align-items:center;font-size:20px;font-weight:700;letter-spacing:.2px;}
.logo .lg-a{color:var(--ink);}
.logo .lg-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);margin:0 6px;transform:translateY(1px);}
.logo .lg-b{color:var(--brand);}
.brand-right{display:flex;align-items:center;gap:14px;}
.ghost-link{font-size:14px;color:var(--ink2);font-weight:500;padding:6px 2px;}
.ghost-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(31,90,122,.22);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 8px 22px rgba(31,90,122,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);}
.btn-outline:active{background:#DCE9F0;}
.btn-light{background:#fff;color:var(--dark);}
.btn-light:hover{background:#EAF2F6;transform:translateY(-1px);}

/* ---------- 频道导航 ---------- */
.channelbar{background:#fff;border-bottom:1px solid var(--line);}
.channelbar .inner{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar .inner::-webkit-scrollbar{display:none;}
.channelbar .sep{flex:none;width:1px;height:18px;background:var(--line);}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--r-chip);
  font-size:13.5px;font-weight:500;color:var(--ink2);border:1px solid transparent;white-space:nowrap;
}
.chip i{font-size:12px;opacity:.8;}
.chip:hover{background:#F1F4F7;color:var(--brand);}
.chip.active{background:var(--brand-soft);color:var(--brand);border-color:rgba(31,90,122,.35);}

/* ---------- 移动端面板 ---------- */
.mobile-panel{display:none;background:#fff;border-bottom:1px solid var(--line);}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;padding:14px 24px;font-size:15px;color:var(--ink2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:none;}
.mobile-panel a.active{color:var(--brand);font-weight:600;border-left:3px solid var(--brand);padding-left:21px;background:var(--brand-soft);}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--ink3);}
.crumb a{color:var(--ink3);}
.crumb a:hover{color:var(--brand);}
.crumb .now{color:var(--ink);}
.crumb span.divider{margin:0 8px;color:#C6D0D8;}

/* ---------- 首屏 ---------- */
.hero{padding:22px 0 56px;}
.hero h1{
  font-size:42px;font-weight:700;line-height:1.25;letter-spacing:-.4px;color:var(--ink);
  max-width:820px;margin-bottom:16px;
}
.hero .lead{font-size:17px;color:var(--ink2);max-width:720px;margin-bottom:24px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.switch-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.switch-row .chip{border-color:var(--line);background:#fff;}

.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);}
.hero-media img{width:100%;height:262px;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,48,63,.10) 0%,rgba(18,48,63,.55) 100%);
}
.hero-media-card{
  position:absolute;left:24px;bottom:24px;z-index:2;background:#fff;border-radius:12px;
  padding:14px 18px;box-shadow:var(--sh-3);min-width:220px;
}
.hero-media-card .hmc-label{display:block;font-size:12px;color:var(--ink3);letter-spacing:.4px;margin-bottom:4px;}
.hero-media-card strong{font-size:15px;font-weight:700;color:var(--ink);}

/* ---------- 板块 ---------- */
.sec{padding:82px 0;}
.sec-alt{background:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.sec-head h2{font-size:30px;font-weight:700;letter-spacing:-.3px;color:var(--ink);margin-bottom:10px;}
.sec-head p{font-size:15px;color:var(--ink2);max-width:660px;margin:0;}
.more-link{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.more-link:hover{color:var(--brand-dark);gap:10px;}

/* ---------- 赛事卡片 ---------- */
.ev-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;height:100%;
}
.ev-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.ev-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.ev-media img{width:100%;height:100%;object-fit:cover;}
.ev-date{
  position:absolute;left:14px;top:14px;background:rgba(18,48,63,.86);color:#fff;
  font-size:12.5px;font-weight:600;border-radius:8px;padding:6px 10px;letter-spacing:.3px;
}
.ev-status{
  position:absolute;right:14px;top:14px;font-size:12px;font-weight:600;border-radius:999px;padding:5px 12px;
  background:#fff;border:1px solid var(--line);
}
.ev-status.live{background:var(--brand);color:#fff;border-color:var(--brand);}
.ev-status.open{background:#FBF3E3;color:#8A621A;border-color:#EBD9B4;}
.ev-status.done{background:#F1F3F5;color:var(--ink3);border-color:var(--line);}
.ev-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.ev-body h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:10px;}
.ev-card:hover .ev-body h3{color:var(--brand);}
.ev-body p{font-size:14px;color:var(--ink2);line-height:1.75;margin-bottom:16px;}
.ev-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.ev-meta span{
  font-size:12.5px;color:var(--ink2);background:var(--bg);border:1px solid var(--line);
  border-radius:999px;padding:4px 11px;
}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand);
}
.card-link:hover{color:var(--brand-dark);gap:11px;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,#CFDDE5 100%);
}
.tl-item{position:relative;padding-left:54px;padding-bottom:22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:8px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(31,90,122,.10);
}
.tl-date{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.4px;margin-bottom:8px;}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.tl-card p{font-size:14.5px;color:var(--ink2);margin-bottom:12px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 12px;
  background:var(--brand-soft);color:var(--brand);
}
.tag.gold{background:#FBF3E3;color:#8A621A;}
.tag.grey{background:#F1F3F5;color:var(--ink3);}

/* ---------- 流程 ---------- */
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;height:100%;
}
.flow-item:hover{border-color:rgba(31,90,122,.35);box-shadow:var(--sh-2);transform:translateY(-3px);}
.flow-num{
  width:32px;height:32px;border-radius:9px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-bottom:16px;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--ink2);margin:0;}

/* ---------- 数据条 ---------- */
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh-1);
}
.metric:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.metric .num{font-size:36px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.5px;}
.metric .num small{font-size:15px;font-weight:600;color:var(--ink3);margin-left:4px;}
.metric .cap{font-size:14px;color:var(--ink2);margin-top:10px;}

/* ---------- 图文两栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.checklist li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink2);
}
.checklist li:last-child{border-bottom:none;}
.checklist li i{color:var(--brand);margin-top:6px;font-size:14px;}
.checklist li b{color:var(--ink);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;
}
.faq-item:hover{border-color:rgba(31,90,122,.30);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;min-height:62px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .idx{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
}
.faq-item summary .plus{margin-left:auto;color:var(--brand);font-size:15px;transition:transform .2s ease;}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-body{
  padding:16px 22px 20px 62px;border-top:1px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--ink2);
}

/* ---------- CTA ---------- */
.cta{background:var(--dark);padding:66px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:-.3px;}
.cta p{font-size:15px;color:#A9BCC7;margin:0;max-width:620px;}
.cta-deco{
  flex:none;width:120px;height:120px;border-radius:50%;
  border:1px dashed rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.55);font-size:30px;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9BCC7;padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .logo{font-size:19px;margin-bottom:16px;}
.footer-brand .lg-a{color:#fff;}
.footer-brand .lg-b{color:#8FC4DC;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#8FA4B1;margin:0;max-width:340px;}
.footer-grid h4{font-size:14px;font-weight:600;color:#E4EDF2;margin-bottom:16px;}
.f-col a{display:block;font-size:13px;color:#A9BCC7;padding:6px 0;}
.f-col a:hover{color:#fff;transform:translateX(2px);}
.f-col ul li{font-size:13px;line-height:1.8;padding:6px 0;color:#A9BCC7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7E93A0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .split{gap:32px;}
  .cta-deco{display:none;}
}
@media (max-width:900px){
  .channelbar{display:none;}
  .nav-toggle{display:flex;}
  .ghost-link{display:none;}
  .hero h1{font-size:32px;}
  .sec{padding:60px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-head h2{font-size:24px;}
  .hero-media img{height:220px;}
}
@media (max-width:820px){
  .split{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  .wrap{padding:0 20px;}
  .hero h1{font-size:29px;}
  .hero .lead{font-size:15.5px;}
  .sec{padding:52px 0;}
  .flow-item,.metric{padding:22px 20px;}
  .tl-card{padding:18px 18px;}
  .faq-body{padding:14px 18px 18px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .metric .num{font-size:30px;}
}
@media (max-width:520px){
  .brandbar-inner{height:58px;}
  .logo{font-size:17px;}
  .btn-sm{padding:8px 12px;font-size:13px;}
  .hero h1{font-size:26px;}
  .hero-media img{height:190px;}
  .hero-media-card{left:14px;bottom:14px;padding:11px 14px;min-width:0;}
  .hero-media-card strong{font-size:13.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category4 */
:root{
  --primary:#1F5A7A;
  --primary-dark:#17475F;
  --primary-soft:#E7F0F5;
  --accent:#E0454F;
  --accent-soft:#FCE9EA;
  --gold:#C8912F;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --dark:#12303F;
  --ink:#1C2430;
  --sub:#5A6B7C;
  --weak:#8C9AA6;
  --line:#E6EBF0;
  --ok:#2E8B6F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(28,36,48,.04), 0 6px 20px rgba(28,36,48,.06);
  --sh-2:0 8px 28px rgba(31,90,122,.14);
  --sh-3:0 16px 48px rgba(28,36,48,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(31,90,122,.4);outline-offset:2px;border-radius:6px;}

.wrap{max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- 品牌行 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line);}
.brandbar{height:64px;background:#fff;border-bottom:1px solid var(--line);}
.brandbar-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:20px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.logo .lg-a{color:var(--primary);}
.logo .lg-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;margin:0 5px 2px;}
.logo .lg-b{color:var(--ink);}
.brandbar-actions{display:flex;align-items:center;gap:18px;}
.link-quiet{font-size:14px;color:var(--sub);transition:color .18s ease;}
.link-quiet:hover{color:var(--primary);}
.hamburger{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;transition:background .18s ease,border-color .18s ease;}
.hamburger span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.hamburger:hover{background:var(--primary-soft);border-color:#C6DCE7;}

/* ---------- 频道行 ---------- */
.channelbar{height:52px;background:#FBFDFE;border-bottom:1px solid var(--line);}
.channelbar .inner{height:52px;display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;}
.channelbar .inner::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--sub);border:1px solid transparent;background:transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip i{font-size:13px;opacity:.85;}
.chip:hover{background:#F0F4F7;color:var(--ink);}
.chip.active{background:var(--primary-soft);color:var(--primary);border-color:var(--primary);}
.channelbar .sep{width:1px;height:20px;background:var(--line);flex:none;margin:0 4px;}
.mobile-panel{display:none;background:#fff;border-bottom:1px solid var(--line);}
.mobile-panel.open{display:block;}
.mobile-panel a{display:block;padding:14px 32px;font-size:15px;color:var(--sub);border-bottom:1px solid var(--line);}
.mobile-panel a:last-child{border-bottom:none;}
.mobile-panel a.is-current{color:var(--primary);font-weight:600;border-left:3px solid var(--primary);background:var(--primary-soft);}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:26px;font-size:13px;color:var(--weak);display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
.crumb a{color:var(--sub);}
.crumb a:hover{color:var(--primary);}
.crumb .now{color:var(--weak);}

/* ---------- Hero ---------- */
.hero{padding:0 0 20px;}
.hero-top{padding-top:22px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:6px 14px;}
.hero h1{font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;margin-top:18px;letter-spacing:-.4px;}
.hero .lede{margin-top:14px;font-size:17px;color:var(--sub);max-width:640px;}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:36px;align-items:center;margin-top:30px;}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);height:250px;background:#DDE9F0;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.float-card{
  position:absolute;left:18px;bottom:18px;background:#fff;border-radius:12px;
  padding:12px 16px;box-shadow:var(--sh-3);max-width:230px;
}
.float-card .fc-title{font-size:13px;color:var(--sub);}
.float-card .fc-num{font-size:20px;font-weight:700;color:var(--primary);margin-top:2px;font-family:Inter,Helvetica,Arial,sans-serif;}
.float-card .fc-num em{font-style:normal;font-size:13px;color:var(--weak);font-weight:500;margin-left:6px;}

/* ---------- 分类切换 chips ---------- */
.switchbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px;padding-top:24px;border-top:1px solid var(--line);}
.switch-chip{
  display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--sub);background:#fff;border:1px solid var(--line);
  transition:all .18s ease;
}
.switch-chip:hover{color:var(--primary);border-color:#C6DCE7;transform:translateY(-2px);box-shadow:var(--sh-1);}
.switch-chip.is-current{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 6px 16px rgba(31,90,122,.18);}

/* ---------- 通用板块 ---------- */
.sec{padding:68px 0;}
.sec-white{background:#fff;}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.3px;}
.sec-head p{margin-top:12px;color:var(--sub);font-size:16px;}
.sec-tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:1px;color:var(--gold);margin-bottom:10px;}

/* ---------- FAQ ---------- */
.faq-group{margin-bottom:44px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group > h3{font-size:19px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.faq-group > h3::before{content:"";width:4px;height:18px;background:var(--primary);border-radius:2px;display:inline-block;}
.faq-list{max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.faq-item:hover{border-color:#CFDDE6;box-shadow:var(--sh-1);}
.faq-item[open]{border-color:#C6DCE7;box-shadow:var(--sh-1);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 22px;min-height:60px;font-size:16.5px;font-weight:600;color:var(--ink);transition:color .18s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary::after{content:"+";margin-left:auto;color:var(--primary);font-size:21px;font-weight:400;line-height:1;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.idx{width:26px;height:26px;flex:none;border-radius:7px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:12px;font-weight:700;font-family:Inter,Helvetica,Arial,sans-serif;}
.faq-body{padding:16px 22px 20px 62px;border-top:1px solid var(--line);font-size:15px;line-height:1.8;color:var(--sub);}
.faq-body strong{color:var(--ink);font-weight:600;}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.check-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:3/2;background:#DDE9F0;}
.check-media img{width:100%;height:100%;object-fit:cover;}
.check-list{display:grid;gap:14px;margin-top:22px;}
.check-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;transition:transform .18s ease,box-shadow .18s ease;}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.check-item .ck-icon{width:34px;height:34px;flex:none;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:14px;}
.check-item h4{font-size:16px;font-weight:600;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--sub);line-height:1.7;}

/* ---------- 反馈 ---------- */
.feedback-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;}
.fb-note{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);}
.fb-note h3{font-size:19px;font-weight:600;margin-bottom:12px;}
.fb-note p{font-size:15px;color:var(--sub);}
.fb-note ul{margin-top:18px;display:grid;gap:10px;}
.fb-note li{display:flex;gap:10px;font-size:14.5px;color:var(--sub);}
.fb-note li i{color:var(--ok);margin-top:5px;font-size:13px;}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:500;color:var(--sub);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #DCE3E9;border-radius:var(--r-input);background:#fff;
  padding:12px 14px;font-size:15px;line-height:1.5;min-height:46px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,90,122,.12);
}
.field .hint{font-size:12px;color:var(--weak);margin-top:6px;}
.field.has-error input,.field.has-error textarea{border-color:var(--accent);}
.field.has-error .hint{color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,122,.18);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C6DCE7;}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);}
.btn-light{background:#fff;color:var(--dark);}
.btn-light:hover{background:#EDF4F8;transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.18);}
.btn-sm{height:38px;font-size:14px;padding:0 16px;}
.btn-block{width:100%;}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#fff;padding:56px 0;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;
  border-radius:50%;background:rgba(31,90,122,.35);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;}
.cta-inner p{margin-top:10px;color:#A9BCC7;font-size:15px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9BCC7;padding:60px 0 0;font-size:13px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .logo{font-size:19px;margin-bottom:14px;}
.footer-brand .logo .lg-b{color:#fff;}
.footer-brand p{font-size:13px;line-height:1.8;color:#A9BCC7;max-width:320px;}
.f-col h4{font-size:14px;font-weight:600;color:#E3EDF3;margin-bottom:16px;}
.f-col a{display:block;color:#A9BCC7;margin-bottom:11px;transition:color .18s ease,transform .18s ease;}
.f-col a:hover{color:#fff;transform:translateX(2px);}
.f-col ul li{line-height:1.9;margin-bottom:8px;color:#A9BCC7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA5B1;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .wrap{padding:0 24px;}
  .hero-grid{grid-template-columns:1fr;gap:26px;}
  .hero-media{height:230px;}
  .check-grid{grid-template-columns:1fr;gap:28px;}
  .feedback-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:899px){
  .channelbar{display:none;}
  .hamburger{display:flex;}
  .brandbar-actions .link-quiet{display:none;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .sec{padding:52px 0;}
  .hero h1{letter-spacing:0;}
  .hero .lede{font-size:15.5px;}
  .switchbar{gap:8px;margin-top:22px;padding-top:20px;}
  .switch-chip{padding:8px 14px;font-size:13.5px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;gap:12px;}
  .faq-body{padding:14px 18px 18px 54px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:44px 0;}
  .fb-note,.form{padding:22px;}
}
@media (max-width:520px){
  .brandbar-actions{gap:10px;}
  .logo{font-size:18px;}
  .btn-sm{height:36px;padding:0 12px;font-size:13px;}
  .hero-media{height:200px;}
  .float-card{left:12px;bottom:12px;padding:10px 12px;max-width:200px;}
  .float-card .fc-num{font-size:17px;}
  .check-item{padding:16px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}