/* roulang page: index */
:root{
  --c-ink:#1B1815;
  --c-ink-2:#2A251F;
  --c-paper:#F6F1E7;
  --c-surface:#FFFDF8;
  --c-cream:#F1E7D8;
  --c-primary:#C3442A;
  --c-primary-dark:#96301C;
  --c-primary-soft:#F8E3DA;
  --c-accent:#2F6B5B;
  --c-accent-soft:#DFEDE7;
  --c-gold:#D99B2B;
  --c-text:#3E3830;
  --c-muted:#8B8175;
  --c-line:#E2D9C8;
  --c-line-dark:#CBBFA9;
  --c-ok:#12A66A;
  --c-err:#D8342C;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(27,24,21,.06);
  --shadow-md:0 12px 28px -14px rgba(27,24,21,.28);
  --shadow-lg:0 26px 50px -26px rgba(27,24,21,.35);
  --hard:4px 4px 0 rgba(27,24,21,.9);
  --hard-sm:3px 3px 0 rgba(27,24,21,.85);
  --maxw:1240px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --pad-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background-color:var(--c-paper);
  background-image:radial-gradient(rgba(27,24,21,.035) 1px,transparent 1px);
  background-size:22px 22px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:var(--c-primary-soft)}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--pad-y) 0;position:relative}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary-dark);background:var(--c-primary-soft);border:1px solid var(--c-line-dark);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.3;letter-spacing:-.01em}
.section-sub{margin-top:12px;font-size:15px;color:var(--c-muted);max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--c-primary);border-bottom:2px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease)}
.link-more:hover{border-color:var(--c-primary);color:var(--c-primary-dark)}

/* 顶部信息条 */
.topbar{background:var(--c-ink);color:#EFE6D6;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-tag{display:inline-flex;align-items:center;gap:8px;letter-spacing:.04em}
.topbar-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-gold);display:inline-block}
.topbar-links{display:flex;align-items:center;gap:20px}
.topbar-links a{color:#D8CDBA;transition:color .18s var(--ease)}
.topbar-links a:hover{color:#FFB399}
.topbar-tel{color:#B9AE9B;font-variant-numeric:tabular-nums}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:70;background:var(--c-surface);border-bottom:1.5px solid var(--c-ink);transition:box-shadow .2s var(--ease)}
.site-header.compact{box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .2s var(--ease)}
.site-header.compact .nav-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.logo-mark{width:38px;height:38px;color:var(--c-primary);display:grid;place-items:center}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink)}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.22em;color:var(--c-muted)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:10px 16px;font-size:15px;font-weight:700;color:var(--c-ink-2);border-radius:var(--radius-sm);transition:color .18s var(--ease),background .18s var(--ease)}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:6px;height:2px;background:var(--c-primary);transition:left .18s var(--ease),right .18s var(--ease)}
.nav-link:hover{color:var(--c-primary-dark);background:var(--c-primary-soft)}
.nav-link:hover::after,.nav-link.active::after{left:16px;right:16px}
.nav-link.active{color:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;font-size:15px;font-weight:700;border-radius:var(--radius);border:2px solid var(--c-ink);background:var(--c-surface);color:var(--c-ink);cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.btn-primary{background:var(--c-primary);color:#FFF7F0;box-shadow:var(--hard)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(27,24,21,.9)}
.btn-primary:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(27,24,21,.9)}
.btn-ghost{background:transparent}
.btn-ghost:hover{background:var(--c-primary-soft);transform:translate(-2px,-2px);box-shadow:var(--hard-sm)}
.btn-ghost:active{transform:translate(1px,1px);box-shadow:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.hamburger{display:none;width:44px;height:44px;border:1.5px solid var(--c-ink);border-radius:var(--radius-sm);background:var(--c-surface);cursor:pointer;padding:0;place-items:center}
.hamburger span{display:block;width:20px;height:2px;background:var(--c-ink);margin:4px auto;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(27,24,21,.45);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;z-index:80}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;background:var(--c-surface);border-left:1.5px solid var(--c-ink);border-radius:20px 0 0 20px;transform:translateX(105%);transition:transform .24s var(--ease);z-index:90;display:flex;flex-direction:column;padding:24px 22px}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:38px;height:38px;border:1.5px solid var(--c-ink);background:var(--c-surface);border-radius:var(--radius-sm);font-size:18px;line-height:1;cursor:pointer;color:var(--c-ink)}
.drawer-nav{padding:14px 0;flex:1;overflow:auto}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 4px;font-size:16px;font-weight:700;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.drawer-nav a.active{color:var(--c-primary)}
.drawer-nav a span{color:var(--c-muted);font-weight:400}
.drawer-foot{border-top:1px solid var(--c-line);padding-top:18px}
.drawer-tel{font-size:14px;color:var(--c-muted);margin-bottom:12px}

/* Hero */
.hero{position:relative;padding:72px 0 84px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(195,68,42,.055) 0 2px,transparent 2px 28px);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-title{font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.01em}
.hero-title .mark{background:linear-gradient(transparent 62%,var(--c-primary-soft) 62%);border-bottom:3px solid var(--c-primary);padding:0 2px}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--c-text);max-width:540px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.trust-list{display:flex;gap:24px;flex-wrap:wrap;margin-top:34px}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--c-muted)}
.trust-dot{width:22px;height:22px;border:1.5px solid var(--c-ink);border-radius:50%;display:grid;place-items:center;flex:none;background:var(--c-surface)}
.trust-dot::before{content:"";width:8px;height:8px;background:var(--c-accent);border-radius:50%}
.hero-media{position:relative}
.hero-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);border:1.5px solid var(--c-ink);box-shadow:var(--shadow-md)}
.float-card{position:absolute;right:-16px;bottom:-22px;background:var(--c-surface);border:1.5px solid var(--c-ink);border-radius:var(--radius);padding:16px 22px;box-shadow:var(--hard);min-width:170px}
.float-num{display:block;font-size:30px;font-weight:800;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums}
.float-label{display:block;font-size:13px;color:var(--c-muted);margin-top:4px}

/* 能力区 */
.cap-grid{display:grid;grid-template-columns:1.42fr 1fr;gap:24px}
.cap-main{display:flex;flex-direction:column;background:var(--c-surface);border:1.5px solid var(--c-ink);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.cap-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.cap-main img{width:100%;aspect-ratio:4/3;object-fit:cover;border-bottom:1.5px solid var(--c-ink)}
.cap-body{padding:26px}
.cap-body h3{font-size:22px;margin-bottom:10px}
.cap-body p{font-size:15px;color:var(--c-text)}
.cap-side{display:grid;gap:24px}
.cap-card{display:flex;gap:16px;background:var(--c-surface);border:1.5px solid var(--c-ink);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.cap-ico{width:44px;height:44px;flex:none;border:1.5px solid var(--c-ink);border-radius:var(--radius-sm);display:grid;place-items:center;background:var(--c-accent-soft);color:var(--c-accent);font-weight:800}
.cap-card h3{font-size:18px;margin-bottom:6px}
.cap-card p{font-size:14px;color:var(--c-muted)}
.arrow-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:700;color:var(--c-primary);transition:gap .18s var(--ease),color .18s var(--ease)}
.cap-card:hover .arrow-link,.cap-main:hover .arrow-link{gap:11px;color:var(--c-primary-dark)}

/* 数据带 */
.statband{background:var(--c-ink);color:#F2E9DA;padding:72px 0;border-top:1.5px solid var(--c-ink);border-bottom:1.5px solid var(--c-ink)}
.statband .eyebrow{background:transparent;border-color:#4A4238;color:var(--c-gold)}
.statband .section-title{color:#FFF7EC}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:40px}
.stat-item{border-left:2px solid #4A4238;padding-left:20px}
.stat-num{font-size:40px;font-weight:800;line-height:1.1;color:#FFF7EC;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num small{font-size:18px;font-weight:700;margin-left:4px;color:var(--c-gold)}
.stat-label{display:block;margin-top:10px;font-size:15px;font-weight:700;color:#E8DCC7}
.stat-note{display:block;margin-top:6px;font-size:13px;color:#9E937F;line-height:1.6}

/* 案例 */
.case-list{display:grid;gap:44px}
.case-item{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:center}
.case-item.reverse .case-media{order:2}
.case-item.reverse .case-body{order:1}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);border:1.5px solid var(--c-ink);box-shadow:var(--shadow-sm)}
.case-body h3{font-size:22px;margin:14px 0 10px}
.case-body p{font-size:15px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:13px;font-weight:700;border:1px solid var(--c-line-dark)}
.badge-green{background:var(--c-accent-soft);color:var(--c-accent);border-color:#BBD8CE}
.case-wide{border:1.5px solid var(--c-ink);border-radius:var(--radius-lg);overflow:hidden;background:var(--c-surface);box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.case-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.case-wide img{width:100%;aspect-ratio:21/9;object-fit:cover;border-bottom:1.5px solid var(--c-ink)}
.case-wide-body{padding:26px 28px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
.case-wide-body h3{font-size:22px;margin:12px 0 8px}
.case-wide-body p{font-size:15px;color:var(--c-text);max-width:720px}

/* 方案区 */
.plan-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.tab{padding:9px 20px;border-radius:999px;border:1.5px solid var(--c-line-dark);background:var(--c-surface);font-size:14px;font-weight:700;color:var(--c-text);cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.tab:hover{border-color:var(--c-primary);color:var(--c-primary-dark)}
.tab.active{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-dark)}
.plan-rows{display:none}
.plan-rows.active{display:block}
.plan-row{display:grid;grid-template-columns:1.1fr 1.5fr auto;gap:26px;align-items:center;padding:24px 12px;border-bottom:1px solid var(--c-line);border-radius:var(--radius-sm);transition:background .18s var(--ease),box-shadow .18s var(--ease)}
.plan-row:hover{background:var(--c-surface);box-shadow:var(--shadow-sm)}
.plan-row h3{font-size:18px;margin-bottom:6px}
.plan-row .row-desc{font-size:14px;color:var(--c-muted)}
.plan-points{display:flex;flex-wrap:wrap;gap:8px 22px}
.plan-points li{position:relative;padding-left:16px;font-size:14px;color:var(--c-text)}
.plan-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* 资讯 */
.news-wrap{display:grid;gap:28px}
.news-feature{display:grid;grid-template-columns:7fr 5fr;gap:28px;background:var(--c-surface);border:1.5px solid var(--c-ink);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.news-feature img{width:100%;height:100%;min-height:260px;aspect-ratio:16/9;object-fit:cover;border-right:1.5px solid var(--c-ink)}
.news-feature-body{padding:28px}
.news-feature-body h3{font-size:22px;line-height:1.4;margin:14px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{font-size:15px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.news-list{display:grid;max-width:980px}
.news-row{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;padding:20px 12px;border-bottom:1px solid var(--c-line);border-radius:var(--radius-sm);transition:background .18s var(--ease)}
.news-row:hover{background:var(--c-surface)}
.news-row h3{font-size:17px;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{font-size:14px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row-side{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--c-muted);white-space:nowrap}
.empty-state{display:grid;place-items:center;gap:12px;height:200px;background:var(--c-paper);border:1.5px dashed var(--c-line-dark);border-radius:var(--radius-lg);color:var(--c-muted);font-size:15px;text-align:center}
.empty-ico{width:40px;height:40px;border:1.5px solid var(--c-line-dark);border-radius:var(--radius-sm);display:grid;place-items:center;font-size:18px;color:var(--c-muted)}

/* FAQ */
.faq{max-width:880px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:none;border:0;padding:20px 4px;font-size:17px;font-weight:600;color:var(--c-ink);text-align:left;cursor:pointer;line-height:1.5}
.faq-q:hover{color:var(--c-primary-dark)}
.faq-sign{flex:none;width:26px;height:26px;border:1.5px solid var(--c-ink);border-radius:50%;display:grid;place-items:center;font-size:15px;line-height:1;transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease)}
.faq-item.open .faq-sign{transform:rotate(180deg);background:var(--c-primary);color:#FFF7F0;border-color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--c-muted)}

/* CTA */
.cta-band{background:var(--c-cream);border-top:1.5px solid var(--c-ink);border-bottom:1.5px solid var(--c-ink);padding:var(--pad-y) 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-points{display:grid;gap:14px;margin-top:26px}
.cta-points li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--c-text)}
.cta-points .dot{width:22px;height:22px;flex:none;margin-top:3px;border:1.5px solid var(--c-ink);border-radius:50%;background:var(--c-surface);display:grid;place-items:center}
.cta-points .dot::before{content:"";width:8px;height:8px;background:var(--c-primary);border-radius:50%}
.contact-line{margin-top:28px;padding-top:22px;border-top:1px solid var(--c-line-dark);font-size:15px;color:var(--c-text)}
.contact-line strong{color:var(--c-ink);font-variant-numeric:tabular-nums}
.form-card{background:var(--c-surface);border:1.5px solid var(--c-ink);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--hard-sm)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card>p{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:700;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--c-line-dark);border-radius:var(--radius);background:var(--c-surface);color:var(--c-text);font-size:15px;font-family:inherit;padding:0 14px;height:46px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(195,68,42,.16)}
.field.error input,.field.error select{border-color:var(--c-err)}
.field-msg{display:none;font-size:13px;color:var(--c-err);margin-top:6px}
.field.error .field-msg{display:block}
.form-success{display:none;margin-top:16px;padding:14px 16px;border:1.5px solid var(--c-ok);background:#E8F6F0;border-radius:var(--radius);font-size:14px;color:#0B7C4E}
.form-success.show{display:block}
.form-note{margin-top:14px;font-size:13px;color:var(--c-muted)}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#C9BFAC;font-size:14px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:48px}
.footer-brand .logo-text strong{color:#FFF7EC}
.footer-brand .logo-text em{color:#9E937F}
.footer-brand .logo-mark{color:var(--c-gold)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:#A99E8B;max-width:340px}
.footer-contact{margin-top:18px;font-size:14px;color:#C9BFAC;line-height:1.9}
.footer-contact span{display:block}
.footer-title{font-size:15px;font-weight:700;color:#FFF7EC;margin-bottom:16px}
.footer-links a{display:block;padding:6px 0;color:#A99E8B;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-links a:hover{color:#FF9B78;transform:translateX(2px)}
.footer-bottom{border-top:1px solid #3A332B;padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8C8172}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (max-width:1279px){
  :root{--pad-y:80px}
  .hero{padding:56px 0 72px}
  .hero-grid{gap:40px}
  .cap-grid{grid-template-columns:1.3fr 1fr}
  .stat-grid{gap:20px}
}
@media (max-width:1023px){
  :root{--pad-y:64px}
  .topbar-tel{display:none}
  .nav-menu{display:none}
  .nav-actions .btn{display:none}
  .hamburger{display:grid}
  .logo{margin-right:auto}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .float-card{position:static;margin-top:16px;box-shadow:var(--hard-sm);width:100%;right:auto;bottom:auto}
  .cap-grid{grid-template-columns:1fr}
  .case-item,.case-item.reverse{grid-template-columns:1fr}
  .case-item.reverse .case-media,.case-item.reverse .case-body{order:0}
  .case-wide-body{grid-template-columns:1fr}
  .plan-row{grid-template-columns:1fr;gap:16px}
  .news-feature{grid-template-columns:1fr}
  .news-feature img{aspect-ratio:16/9;min-height:0;border-right:0;border-bottom:1.5px solid var(--c-ink)}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--pad-y:56px}
  .container{padding:0 18px}
  .nav-inner{height:64px;gap:12px}
  .site-header.compact .nav-inner{height:58px}
  .logo-text strong{font-size:17px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{flex:1 1 100%}
  .stat-grid{grid-template-columns:1fr 1fr;gap:24px 18px}
  .stat-num{font-size:32px}
  .section-head{margin-bottom:26px}
  .news-row{grid-template-columns:1fr;gap:10px}
  .news-row-side{justify-content:flex-start}
  .plan-points{flex-direction:column;gap:6px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .case-wide-body{padding:20px}
}
@media (max-width:480px){
  .hero-title{font-size:26px}
  .section-title{font-size:22px}
  .cap-body,.cap-card{padding:18px}
  .btn{height:44px}
  .topbar{display:none}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#1557E5;
  --c-primary-dark:#0C3CA8;
  --c-primary-soft:#E9F0FE;
  --c-accent:#FF6A2E;
  --c-ink:#0E1A2B;
  --c-text:#33455C;
  --c-muted:#7A8899;
  --c-line:#E3E9F2;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-ok:#12A66A;
  --c-warn:#E8A200;
  --c-err:#D8342C;
  --r-card:16px;
  --r-media:12px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,26,43,.06);
  --shadow-md:0 8px 24px -8px rgba(14,26,43,.12);
  --shadow-lg:0 24px 48px -24px rgba(14,26,43,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.25em}
ul,ol{margin:0 0 1.25em;padding-left:1.25em}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{padding:0 32px}}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:#FFF1EA;color:#C94A12}
.tag-line{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);flex:none}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:#fff;height:36px;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-tag{color:#C8D4E6;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:18px;flex:none}
.topbar-links a{color:#E7EEF9;font-size:13px}
.topbar-links a:hover{color:#fff}
.topbar-phone{color:#9FB2CE}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:height .22s var(--ease),box-shadow .22s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .22s var(--ease)}
.site-header.is-compact .header-inner{height:60px}
.site-header.is-compact{box-shadow:var(--shadow-sm)}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);min-height:40px}
.logo:hover{color:var(--c-ink)}
.logo-mark{display:inline-flex;color:var(--c-primary)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:19px;font-weight:800;letter-spacing:-.02em}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.14em}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--c-text);
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-primary);transition:left .18s var(--ease),right .18s var(--ease);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-bg)}
.nav-link:hover::after{left:14px;right:14px}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{left:14px;right:14px}
.nav-cta{margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--c-line);
  border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(14,26,43,.45);opacity:0;visibility:hidden;transition:opacity .2s var(--ease);z-index:70}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;background:#fff;
  border-radius:20px 0 0 20px;z-index:80;transform:translateX(102%);
  transition:transform .24s var(--ease);display:flex;flex-direction:column;padding:20px 0 16px;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 14px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;font-size:16px;color:var(--c-ink)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 12px;flex:1}
.drawer-nav a{height:52px;display:flex;align-items:center;padding:0 12px;border-radius:10px;font-size:16px;font-weight:600;color:var(--c-ink)}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-foot{padding:12px 20px 0;border-top:1px solid var(--c-line)}
.drawer-foot .btn{width:100%}
.drawer-note{font-size:13px;color:var(--c-muted);padding:10px 20px 0}

/* ---------- 面包屑 ---------- */
.crumbs{background:#fff;border-bottom:1px solid var(--c-line)}
.crumbs-inner{padding:14px 0;font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#B9C4D4}
.crumbs .now{max-width:46ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--c-text)}

/* ---------- 文章布局 ---------- */
.article-shell{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding:40px 0 72px}
.article-main{min-width:0}
.article-panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:32px 32px 36px}
.article-head h1{font-size:34px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin:18px 0 0;font-size:13.5px;color:var(--c-muted)}
.article-meta .sep{width:1px;height:14px;background:var(--c-line)}
.article-rule{height:1px;background:var(--c-line);margin:22px 0 28px}
.article-lead{font-size:16px;color:var(--c-text);background:var(--c-bg);border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;padding:14px 18px;margin:0 0 26px}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);max-width:760px}
.article-body>p:first-of-type{color:var(--c-ink)}
.article-body h2{
  font-size:28px;line-height:1.35;font-weight:700;margin:48px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.24em;width:4px;border-radius:2px;background:var(--c-primary)}
.article-body h3{font-size:22px;line-height:1.45;font-weight:600;margin:36px 0 12px}
.article-body h4{font-size:18px;margin:26px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.3em}
.article-body ul li{list-style:none;position:relative;padding-left:4px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.article-body ol li{margin-bottom:8px}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--c-bg);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-text);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-media);margin:24px 0;box-shadow:var(--shadow-sm)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body a{border-bottom:1px solid rgba(21,87,229,.35)}
.article-body a:hover{border-bottom-color:var(--c-primary-dark)}
.article-body table{display:block;overflow-x:auto;width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body thead th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:var(--c-bg)}
.article-body code{background:#F1F4F9;border-radius:6px;padding:2px 6px;font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body pre{background:#F1F4F9;border:1px solid var(--c-line);border-radius:12px;padding:18px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7}
.article-body pre code{background:none;padding:0}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-bg);border:1px dashed var(--c-line);border-radius:var(--r-card);padding:32px;text-align:center;
}
.empty-state svg{color:var(--c-muted)}
.empty-state p{margin:0;color:var(--c-muted);font-size:15px}

/* ---------- 文章底部 ---------- */
.article-foot{margin-top:40px}
.foot-title{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.foot-title h2{font-size:20px}
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.next-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.next-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#CFDCEF}
.next-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg)}
.next-card .thumb img{width:100%;height:100%;object-fit:cover}
.next-card .body{padding:20px 22px 22px}
.next-card h3{font-size:18px;margin-bottom:8px}
.next-card p{margin:0 0 14px;font-size:14px;color:var(--c-muted);line-height:1.7}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.arrow-link::after{content:"→";transition:transform .2s var(--ease)}
.arrow-link:hover::after{transform:translateX(4px)}
.foot-actions{display:flex;justify-content:center;margin-top:32px}

/* ---------- 目录侧栏 ---------- */
.article-side{display:none}
.toc-card{position:sticky;top:104px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-sm)}
.toc-card p.toc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-ink);margin:0 0 12px}
.toc-list{list-style:none;margin:0;padding:0;max-height:52vh;overflow:auto}
.toc-list li{margin:0}
.toc-list a{display:block;font-size:13.5px;line-height:1.5;color:var(--c-muted);padding:7px 10px;border-left:2px solid var(--c-line);border-radius:0 8px 8px 0}
.toc-list a:hover{color:var(--c-primary);background:var(--c-bg)}
.toc-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);font-weight:600}
.toc-list li.lv3 a{padding-left:22px;font-size:13px}
.toc-cta{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line)}
.toc-cta p{font-size:13px;color:var(--c-muted);margin:0 0 12px;line-height:1.7}

/* ---------- CTA 区块 ---------- */
.cta-band{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:72px 0}
.cta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:start}
.cta-band h2{font-size:30px;margin-bottom:14px}
.cta-band .cta-desc{color:var(--c-text);margin-bottom:22px}
.cta-points{list-style:none;padding:0;margin:0 0 24px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;margin-bottom:12px;color:var(--c-ink)}
.cta-points li svg{flex:none;margin-top:4px;color:var(--c-primary)}
.cta-contact{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--c-text)}
.cta-contact strong{color:var(--c-ink)}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-md);padding:26px 26px 28px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.form-row .field{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;padding:0 12px;font-size:15px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-row textarea.field{height:auto;min-height:112px;padding:10px 12px;resize:vertical;line-height:1.7}
.form-row .field:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(21,87,229,.15);outline:none}
.form-row.has-error .field{border-color:var(--c-err)}
.form-tip{display:block;font-size:13px;color:var(--c-err);margin-top:6px;min-height:0}
.form-note{font-size:13px;color:var(--c-muted);margin:12px 0 0}
.form-ok{font-size:14px;color:var(--c-ok);margin:12px 0 0;font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#D6DEEB;padding:64px 0 28px;font-size:14px}
.site-footer .logo{color:#fff}
.site-footer .logo-text em{color:#8FA3BF}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-desc{color:#9FB2CE;font-size:13.5px;line-height:1.85;margin:16px 0 18px;max-width:36ch}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#9FB2CE}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#C8D4E6;font-size:14px;transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.footer-links a:hover{color:#6E9BFF;transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid #1E2C40;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8FA3BF;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .article-shell{grid-template-columns:minmax(0,1fr) 240px;gap:40px}
  .article-side{display:block}
}
@media (max-width:1279px){
  .article-panel{padding:28px 26px 32px}
  .article-head h1{font-size:30px}
  .cta-band h2{font-size:26px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .cta-band{padding:56px 0}
}
@media (max-width:767px){
  .topbar{display:none}
  .container{padding:0 16px}
  .article-shell{padding:24px 0 56px;gap:32px}
  .article-panel{padding:22px 18px 26px;border-radius:14px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:23px;margin-top:38px}
  .article-body h3{font-size:19px}
  .next-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .btn{height:44px}
  .foot-actions .btn{width:100%}
  .site-footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-desc{max-width:none}
}
@media (max-width:480px){
  .article-head h1{font-size:23px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;gap:8px}
  .crumbs-inner{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#1557E5;
  --c-primary-dark:#0C3CA8;
  --c-primary-soft:#E9F0FE;
  --c-accent:#FF6A2E;
  --c-ink:#0E1A2B;
  --c-text:#33455C;
  --c-muted:#7A8899;
  --c-line:#E3E9F2;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-ok:#12A66A;
  --c-warn:#E8A200;
  --c-err:#D8342C;
  --r-card:16px;
  --r-sm:12px;
  --r-hero:20px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(14,26,43,.06);
  --shadow-md:0 8px 24px -8px rgba(14,26,43,.12);
  --shadow-lg:0 24px 48px -24px rgba(14,26,43,.18);
  --sp-section:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:var(--c-primary-soft);color:var(--c-primary-dark)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{padding:0 32px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:#C8D3E3;font-size:13px;line-height:36px;height:36px;overflow:hidden}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-tag{display:inline-flex;align-items:center;gap:8px;letter-spacing:.04em}
.topbar-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar-right a{color:#C8D3E3;transition:color .18s var(--ease)}
.topbar-right a:hover{color:#fff}
@media (max-width:1023px){.topbar{display:none}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:height .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-compact{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .2s var(--ease)}
.site-header.is-compact .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{color:var(--c-primary);display:inline-flex;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.18em}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--c-text);padding:6px 0;transition:color .18s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;
  background:var(--c-primary);transition:left .18s var(--ease),right .18s var(--ease);
}
.nav-link:hover,.nav-link.active{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0}
.header-actions{display:flex;align-items:center;gap:12px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--c-primary-dark);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.btn-ghost{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-ghost:hover{background:#dbe7fd}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed}
.btn-block{width:100%}

/* ---------- 移动端抽屉 ---------- */
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;transition:background .18s var(--ease)}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);transition:transform .2s var(--ease)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer-mask{position:fixed;inset:0;background:rgba(14,26,43,.45);opacity:0;visibility:hidden;transition:opacity .2s var(--ease);z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;background:var(--c-surface);
  border-radius:20px 0 0 20px;z-index:95;transform:translateX(102%);transition:transform .24s var(--ease);
  display:flex;flex-direction:column;padding:24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);font-size:20px;line-height:1;color:var(--c-ink)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{height:52px;display:flex;align-items:center;font-size:16px;font-weight:600;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
.drawer-nav a.active{color:var(--c-primary)}
.drawer-foot{margin-top:auto;padding-top:20px}
@media (max-width:1023px){
  .nav-menu{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-header{display:none}
}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--c-muted);padding:20px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb a{color:var(--c-muted);transition:color .18s var(--ease)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#B9C4D4}
.crumb .current{color:var(--c-text)}

/* ---------- 横幅 ---------- */
.banner{padding-top:20px}
.banner-media{
  position:relative;height:clamp(220px,26vw,280px);overflow:hidden;border-radius:var(--r-hero);
  box-shadow:var(--shadow-sm);background:var(--c-ink);
}
.banner-media img{width:100%;height:100%;object-fit:cover}
.banner-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,26,43,.72) 0%,rgba(14,26,43,.34) 46%,rgba(14,26,43,.05) 100%);
}
.banner-badge{
  position:absolute;left:28px;top:28px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--c-primary-dark);
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:var(--r-pill);
}
.banner-info{
  position:relative;z-index:3;margin:-44px auto 0;width:min(100%,1120px);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-md);padding:26px 30px;border-left:4px solid var(--c-primary);
}
.banner-info h1{font-size:40px;line-height:1.2;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.banner-info p{margin-top:12px;font-size:16px;line-height:1.8;color:var(--c-text);max-width:860px}
.banner-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary-dark);background:var(--c-primary-soft);border-radius:var(--r-pill);padding:5px 13px}
.tag-accent{color:#B8431A;background:#FFF0E8}
@media (max-width:767px){
  .banner-info{padding:20px;margin-top:-28px;border-left-width:3px}
  .banner-info h1{font-size:28px}
}

/* ---------- 主体布局 ---------- */
.section{padding:var(--sp-section) 0}
.section-tight{padding-top:56px}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--c-text);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent)}

.layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;align-items:start}
.sidebar-inner{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-sm)}
.side-card h3{font-size:15px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;margin-bottom:14px}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;color:var(--c-text);
  border-bottom:1px dashed var(--c-line);transition:color .18s var(--ease),transform .18s var(--ease);
}
.side-nav a:last-child{border-bottom:0}
.side-nav a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-line);transition:background .18s var(--ease)}
.side-nav a:hover{color:var(--c-primary);transform:translateX(2px)}
.side-nav a:hover::before{background:var(--c-primary)}
.side-links a{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:10px 0;font-size:14px;color:var(--c-text);border-bottom:1px solid var(--c-line);
  transition:color .18s var(--ease),padding .18s var(--ease);
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--c-primary);padding-left:4px}
.side-links .arrow{color:var(--c-muted)}
.side-cta{background:var(--c-ink);color:#E6EDF7;border-radius:var(--r-card);padding:24px}
.side-cta h3{color:#fff;font-size:18px;font-weight:700;margin-bottom:8px}
.side-cta p{font-size:14px;color:#A9B8CE;margin-bottom:16px}
.side-cta .btn-primary{background:var(--c-accent)}
.side-cta .btn-primary:hover{background:#E85A20}

.prose p{font-size:16px;line-height:1.85;color:var(--c-text);margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--c-ink)}

.block-title{font-size:22px;font-weight:600;color:var(--c-ink);margin:40px 0 20px;padding-left:12px;border-left:4px solid var(--c-primary);line-height:1.3}
.block-title:first-child{margin-top:0}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#CFDCF2}
.card-media{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-bg)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--c-ink)}
.card-desc{font-size:14px;line-height:1.75;color:var(--c-text);flex:1}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);transition:gap .18s var(--ease),color .18s var(--ease)}
.link-arrow:hover{gap:10px;color:var(--c-primary-dark)}

/* ---------- 数据色带 ---------- */
.stat-band{background:var(--c-ink);color:#fff}
.stat-band .container{padding-top:72px;padding-bottom:72px}
.stat-band-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:flex-end;margin-bottom:40px}
.stat-band-head h2{font-size:32px;font-weight:700;color:#fff;line-height:1.3}
.stat-band-head p{font-size:15px;color:#9FB0C8;max-width:520px}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat-item{border-top:2px solid #1E2C40;padding-top:20px}
.stat-num{font-size:40px;font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num em{font-style:normal;font-size:18px;font-weight:600;color:var(--c-accent);margin-left:4px}
.stat-label{font-size:15px;font-weight:600;color:#DAE4F2;margin-top:8px}
.stat-note{font-size:13px;color:#8397B0;margin-top:6px}
@media (max-width:1023px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm);position:relative;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-idx{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:14px;font-weight:800;margin-bottom:14px;font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.step p{font-size:14px;line-height:1.7;color:var(--c-text)}
@media (max-width:1023px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--c-ink);padding:16px 0;transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .ico{position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform .2s var(--ease)}
.faq-item summary .ico::before,.faq-item summary .ico::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
.faq-item summary .ico::before{left:0;top:9px;width:20px;height:2px}
.faq-item summary .ico::after{top:0;left:9px;width:2px;height:20px;transition:transform .2s var(--ease)}
.faq-item[open] summary .ico::after{transform:scaleY(0)}
.faq-answer{font-size:15px;line-height:1.8;color:var(--c-text);padding:0 0 20px;max-width:820px}

/* ---------- CTA 区 ---------- */
.cta-band{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.cta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:start;padding:80px 0}
.cta-copy h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--c-ink);margin-bottom:16px}
.cta-points{display:grid;gap:12px;margin:22px 0 26px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-text)}
.cta-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;margin-top:8px}
.cta-contact{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:14px;color:var(--c-muted)}
.cta-contact b{color:var(--c-ink);font-weight:700;font-variant-numeric:tabular-nums}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-md)}
.form-row{margin-bottom:18px}
.form-row:last-of-type{margin-bottom:22px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--c-ink);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-row textarea{min-height:110px;resize:vertical;line-height:1.7}
.form-row input::placeholder,.form-row textarea::placeholder{color:#A9B5C5}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:var(--c-primary);outline:none;box-shadow:0 0 0 3px rgba(21,87,229,.15);
}
.form-hint{font-size:13px;color:var(--c-muted);margin-top:10px}
.form-hint.error{color:var(--c-err)}
@media (max-width:1023px){
  .layout{grid-template-columns:1fr}
  .sidebar-inner{position:static;order:2}
  .content-col{order:1}
  .cta-grid{grid-template-columns:1fr;gap:32px;padding:56px 0}
}
@media (max-width:767px){
  .card-grid{grid-template-columns:1fr;gap:16px}
  .section{padding:56px 0}
  .section-head h2,.cta-copy h2,.stat-band-head h2{font-size:24px}
  .banner-info h1{font-size:28px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C6D2E2;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .logo{cursor:default}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:#8CA0BC}
.footer-brand .logo-mark{color:#5B8CF0}
.footer-desc{margin-top:16px;font-size:13px;line-height:1.85;color:#93A6C0;max-width:360px}
.footer-contact{margin-top:16px;display:grid;gap:6px;font-size:13px;color:#93A6C0}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{display:inline-block;color:#A9B8CE;font-size:14px;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-links a:hover{color:#5B8CF0;transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid #1E2C40;padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:#8397B0;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;padding-bottom:28px}
  .footer-bottom{flex-direction:column}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --c-primary:#1557E5;
  --c-primary-dark:#0C3CA8;
  --c-primary-soft:#E9F0FE;
  --c-accent:#FF6A2E;
  --c-ink:#0E1A2B;
  --c-text:#33455C;
  --c-muted:#7A8899;
  --c-line:#E3E9F2;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-success:#12A66A;
  --c-warning:#E8A200;
  --c-error:#D8342C;
  --shadow-sm:0 1px 2px rgba(14,26,43,.06);
  --shadow-md:0 8px 24px -8px rgba(14,26,43,.12);
  --shadow-lg:0 24px 48px -24px rgba(14,26,43,.18);
  --radius-card:16px;
  --radius-sm:12px;
  --radius-hero:20px;
  --radius-ctrl:10px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.nums{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:#D8E0EC;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar-tag{letter-spacing:.06em;color:#A9B8CC;}
.topbar-right{display:flex;align-items:center;gap:20px;}
.topbar-right a{color:#D8E0EC;transition:color .18s var(--ease);}
.topbar-right a:hover{color:#fff;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:height .2s var(--ease),box-shadow .2s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s var(--ease);}
.site-header.is-compact .header-inner{height:60px;}
.site-header.is-compact{box-shadow:var(--shadow-sm);}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;color:var(--c-ink);}
.logo-mark{display:flex;color:var(--c-primary);}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text strong{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.14em;}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:12px;}
.nav-link{
  position:relative;padding:8px 2px;font-size:15px;font-weight:600;color:var(--c-text);
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--c-primary);
  transform:translateX(-50%);transition:width .18s var(--ease);border-radius:2px;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{width:100%;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--radius-ctrl);
  align-items:center;justify-content:center;background:var(--c-surface);
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,43,.45);z-index:80;opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;background:var(--c-surface);
  border-radius:20px 0 0 20px;z-index:90;transform:translateX(100%);
  transition:transform .24s var(--ease);display:flex;flex-direction:column;padding:24px 22px;
  box-shadow:var(--shadow-lg);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:38px;height:38px;border:1px solid var(--c-line);border-radius:var(--radius-ctrl);font-size:18px;color:var(--c-ink);}
.drawer-nav{display:flex;flex-direction:column;padding-top:12px;flex:1;overflow-y:auto;}
.drawer-nav a{
  height:52px;display:flex;align-items:center;font-size:16px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-foot{padding-top:16px;border-top:1px solid var(--c-line);}
.drawer-foot .btn{width:100%;}
.drawer-foot p{font-size:13px;color:var(--c-muted);margin-top:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-ctrl);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--c-primary-dark);box-shadow:var(--shadow-md);}
.btn-outline{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border:1px solid var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px;}
.link-arrow::after{content:"→";transition:transform .18s var(--ease);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.crumbs{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumbs-inner{display:flex;align-items:center;gap:8px;height:52px;font-size:13px;color:var(--c-muted);}
.crumbs-inner a{color:var(--c-muted);transition:color .18s var(--ease);}
.crumbs-inner a:hover{color:var(--c-primary);}
.crumbs-inner .sep{color:#C3CDDA;}
.crumbs-inner .current{color:var(--c-ink);font-weight:600;}

/* ---------- Hero（横向标签母题） ---------- */
.hero{background:var(--c-surface);padding:34px 0 40px;border-bottom:1px solid var(--c-line);}
.tagbar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag-chip{
  height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;font-size:14px;font-weight:600;color:var(--c-text);
  background:var(--c-surface);transition:all .18s var(--ease);
}
.tag-chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.tag-chip.is-active{background:var(--c-primary-soft);color:var(--c-primary);border-color:transparent;}
.hero h1{
  font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);
  max-width:820px;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--c-text);max-width:760px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:28px;padding-top:24px;border-top:1px solid var(--c-line);}
.hero-facts li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-text);}
.hero-facts li b{font-size:20px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.hero-facts li i{width:8px;height:8px;border-radius:999px;background:var(--c-accent);}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{
  font-size:32px;line-height:1.3;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;
  position:relative;padding-left:16px;
}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-muted);max-width:640px;}
.section-head .head-right{flex-shrink:0;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.gear-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.gear-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D2DEEE;}
.gear-card figure{margin:0;aspect-ratio:4/3;overflow:hidden;background:var(--c-bg);}
.gear-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.gear-card:hover figure img{transform:scale(1.04);}
.gear-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.gear-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--c-ink);}
.gear-body p{font-size:15px;color:var(--c-text);}
.gear-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-muted);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;
}
.badge-accent{background:#FFF1E9;color:#C64A12;}

/* ---------- 要点清单 ---------- */
.checklist-wrap{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:24px 48px;}
.checklist-col{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--radius-card);padding:26px 28px;}
.checklist-col h3{font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:16px;}
.checklist-col li{
  position:relative;padding-left:18px;font-size:15px;line-height:1.9;color:var(--c-text);
}
.checklist-col li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:999px;background:var(--c-primary);
}
.checklist-col li + li{margin-top:8px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:60px;padding:14px 0;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .icon{
  flex-shrink:0;width:26px;height:26px;border-radius:999px;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;color:var(--c-primary);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg);background:var(--c-primary-soft);border-color:transparent;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a p{font-size:15px;line-height:1.8;color:var(--c-muted);padding:0 0 20px;max-width:760px;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  position:relative;border-radius:var(--radius-card);overflow:hidden;min-height:180px;
  border:1px solid var(--c-line);box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;justify-content:flex-end;padding:22px 24px;
  color:#fff;transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.related-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;}
.related-card::before{content:"";position:absolute;inset:0;background:rgba(14,26,43,.62);z-index:-1;}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.related-card h3{font-size:19px;font-weight:700;position:relative;}
.related-card p{font-size:13px;color:#C8D4E4;margin-top:6px;position:relative;}

/* ---------- CTA / 表单 ---------- */
.cta-band{background:var(--c-primary-soft);}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.cta-copy h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.cta-copy > p{margin-top:16px;font-size:16px;color:var(--c-text);max-width:520px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--c-ink);}
.cta-points li i{
  width:26px;height:26px;border-radius:999px;background:var(--c-surface);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-style:normal;font-weight:700;
  box-shadow:var(--shadow-sm);flex-shrink:0;
}
.cta-contact{margin-top:26px;padding-top:22px;border-top:1px solid #D3E0F8;font-size:14px;color:var(--c-text);display:flex;flex-direction:column;gap:8px;}
.form-card{
  background:var(--c-surface);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-md);border:1px solid var(--c-line);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--radius-ctrl);
  background:var(--c-surface);padding:11px 14px;font-size:15px;color:var(--c-ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input,.field select{height:44px;padding:0 14px;}
.field textarea{resize:vertical;min-height:104px;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#A7B3C2;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(21,87,229,.14);
}
.field.has-error input,.field.has-error textarea{border-color:var(--c-error);}
.field .err{display:none;font-size:13px;color:var(--c-error);margin-top:6px;}
.field.has-error .err{display:block;}
.form-note{font-size:13px;color:var(--c-muted);margin-top:12px;}
.form-tip{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-ctrl);
  background:#E8F7F0;color:#0B7A4D;font-size:14px;
}
.form-tip.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C6D2E1;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{color:#fff;cursor:default;}
.footer-brand .logo-text em{color:#8FA3BC;}
.footer-desc{font-size:14px;line-height:1.85;color:#9FB0C6;margin-top:18px;max-width:360px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8FA3BC;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:#9FB0C6;transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block;}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid #1E2C40;padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#7E8FA6;flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(3,1fr);}
  .hero h1{font-size:36px;}
}
@media (max-width:1023px){
  .topbar-right a{display:none;}
  .nav-menu{display:none;}
  .hamburger{display:inline-flex;}
  .header-actions{gap:10px;}
  .header-actions .btn-primary{display:none;}
  .section{padding:56px 0;}
  .hero{padding:28px 0 34px;}
  .hero h1{font-size:30px;line-height:1.25;}
  .hero-lead{font-size:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-head h2{font-size:26px;}
  .grid-3{grid-template-columns:repeat(2,1fr);gap:20px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .checklist{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero h1{font-size:28px;}
  .section-head h2{font-size:24px;}
  .grid-3{grid-template-columns:1fr;gap:16px;}
  .related-grid{grid-template-columns:1fr;}
  .gear-body{padding:20px;}
  .faq-q{font-size:16px;min-height:56px;}
  .cta-copy h2{font-size:24px;}
  .form-card{padding:22px;}
  .btn{height:44px;}
  .hero-facts{gap:12px 24px;}
}
@media (max-width:480px){
  .topbar{display:none;}
  .hero h1{font-size:26px;}
  .logo-text strong{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}