/* roulang page: index */
:root{
  --primary:#1E5FA8;
  --primary-dark:#174C87;
  --primary-light:#EDF3FB;
  --primary-border:#C9DCF2;
  --accent:#E28A2B;
  --title:#16212E;
  --body:#475467;
  --muted:#7A8798;
  --line:#E4E9F0;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --footer:#14314F;
  --success:#1E9E6A;
  --warn:#D9822B;
  --danger:#C9453A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(16,32,52,.05),0 1px 3px rgba(16,32,52,.06);
  --sh2:0 6px 16px -6px rgba(16,32,52,.10),0 2px 6px rgba(16,32,52,.05);
  --sh3:0 18px 40px -18px rgba(16,32,52,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--body);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.35;font-weight:700}
p{margin:0}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 顶栏 ---------- */
.topbar{height:36px;background:var(--footer);color:#C7D6E6;font-size:13px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-right a{color:#C7D6E6;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.topbar-right a:hover{color:#fff;border-color:#fff}
@media (max-width:768px){.topbar{display:none}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh1)}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;transition:height .25s var(--ease)}
.site-header.is-scrolled .nav-inner{height:58px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--title);letter-spacing:.01em}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;flex:none}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-block;padding:11px 16px;font-size:15px;color:var(--body);border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease)}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;background:var(--primary);border-radius:2px}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:var(--r-btn);background:var(--primary);color:#fff;font-size:14px;font-weight:600;transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px)}
.nav-cta:active{transform:translateY(1px);box-shadow:none}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);align-items:center;justify-content:center;transition:background .2s var(--ease),border-color .2s var(--ease)}
.nav-toggle:hover{background:var(--primary-light);border-color:var(--primary-border)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--title);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--title);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{position:fixed;inset:0;background:rgba(16,32,52,.45);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;background:#fff;z-index:90;transform:translateX(100%);transition:transform .28s var(--ease);padding:24px 20px;overflow-y:auto;box-shadow:var(--sh3)}
.drawer.open{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:14px}
.drawer a.drawer-link{display:block;padding:14px 12px;border-radius:var(--r-btn);font-size:16px;color:var(--title);border-bottom:1px solid var(--line);transition:background .2s var(--ease),color .2s var(--ease)}
.drawer a.drawer-link:hover{background:var(--primary-light);color:var(--primary)}
.drawer .btn{margin-top:22px;width:100%}
@media (max-width:900px){
  .nav-list,.nav-cta{display:none}
  .nav-toggle{display:flex}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.btn-lg{height:48px;font-size:16px;padding:0 28px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:#fff;color:var(--primary);border:1.5px solid var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-outline:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--primary);box-shadow:var(--sh1)}
.btn-white:hover{background:#F2F7FD;transform:translateY(-1px)}
.btn-white:active{transform:translateY(1px);box-shadow:none}
.btn-ghost-white{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-ghost-white:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-ghost-white:active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.link-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid var(--primary);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.link-btn:hover{color:var(--primary-dark);border-color:transparent}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);border:1px solid var(--primary-border);border-radius:999px;padding:5px 14px;letter-spacing:.04em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .h2{margin-top:16px;font-size:30px}
.section-head p{margin-top:14px;font-size:16px;color:var(--body)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary)}
.badge-accent{background:#FDF3E7;border:1px solid var(--accent);color:#B9701F}
@media (max-width:1024px){.section{padding:72px 0}}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{padding:0 20px}
  .section-head .h2{font-size:24px}
  .section-head{margin-bottom:28px}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#F6F8FB 0%,#EDF3FB 100%);border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;padding:76px 0 84px}
.hero-title{font-size:44px;line-height:1.3;max-width:560px}
.hero-sub{margin-top:20px;font-size:17px;color:var(--body);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px 28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--body)}
.hero-points li::before{content:"";width:16px;height:16px;border-radius:50%;background:var(--primary-light);border:1px solid var(--primary-border);flex:none;box-shadow:inset 0 0 0 3px #fff}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh3);aspect-ratio:5/4;background-color:#DCE7F5;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center}
.hero-visual::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,.10)}
.hero-float{position:absolute;left:22px;right:22px;bottom:22px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--sh2);display:flex;align-items:center;gap:16px;z-index:2}
.hero-float .num{font-size:26px;font-weight:700;color:var(--primary);line-height:1}
.hero-float p{font-size:13px;color:var(--muted);margin-top:4px}
.hero-float .vf-divider{width:1px;height:34px;background:var(--line);flex:none}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:56px 0 64px}
  .hero-title{font-size:36px;max-width:none}
  .hero-visual{aspect-ratio:16/10}
}
@media (max-width:768px){
  .hero-title{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-float{left:14px;right:14px;bottom:14px;padding:12px 14px;gap:12px}
}

/* ---------- 信任条 ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);min-height:72px;align-items:center}
.trust-item{display:flex;align-items:center;gap:14px;padding:18px 24px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-num{font-size:24px;font-weight:700;color:var(--title);line-height:1.1;font-variant-numeric:tabular-nums}
.trust-label{font-size:12px;color:var(--muted);line-height:1.5}
@media (max-width:768px){
  .trust-grid{grid-template-columns:1fr 1fr;padding:8px 0}
  .trust-item{border-left:0;padding:12px 0}
}

/* ---------- 痛点区 ---------- */
.pain-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.pain-grid .h2{font-size:30px;margin-top:16px}
.pain-lead{margin-top:16px;font-size:16px;color:var(--body)}
.num-list{display:grid;gap:0}
.num-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.num-item:first-child{padding-top:4px}
.num-item:last-child{border-bottom:0;padding-bottom:0}
.num-dot{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;color:var(--accent);background:#FDF3E7;border:1px solid #F2DCC1}
.num-body h3{font-size:16px;margin-bottom:6px}
.num-body p{font-size:14px;color:var(--muted)}
@media (max-width:1024px){
  .pain-grid{grid-template-columns:1fr;gap:28px}
  .pain-grid .h2{font-size:26px}
}
@media (max-width:768px){.pain-grid .h2{font-size:23px}}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.split + .split{margin-top:80px}
.split-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background-color:#E4ECF7;box-shadow:var(--sh2)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-body .h3{font-size:22px;margin-bottom:16px}
.split-body p + p{margin-top:14px}
.check-list{margin:22px 0 26px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:var(--body)}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:5px;background:var(--primary-light);border:1px solid var(--primary-border)}
.check-list li::after{content:"";position:absolute;left:5px;top:11px;width:6px;height:9px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(42deg)}
.split.reverse .split-media{order:2}
.split.reverse .split-body{order:1}
@media (max-width:900px){
  .split,.split.reverse{grid-template-columns:1fr;gap:26px}
  .split.reverse .split-media{order:0}
  .split.reverse .split-body{order:0}
  .split + .split{margin-top:48px}
  .split-body .h3{font-size:19px}
}

/* ---------- 成果区 ---------- */
.results{background:var(--primary-light);border-top:1px solid var(--primary-border);border-bottom:1px solid var(--primary-border)}
.results-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.result-card{background:#fff;border:1px solid var(--primary-border);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.result-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.result-num{font-size:40px;font-weight:700;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums}
.result-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--primary-dark)}
.result-bar{width:32px;height:3px;border-radius:2px;background:var(--accent);margin:16px 0 14px}
.result-card p{font-size:14px;color:var(--body)}
@media (max-width:1024px){.results-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.results-grid{grid-template-columns:1fr}}

/* ---------- 客户证言 ---------- */
.quotes{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.quote-col{display:grid;gap:24px}
.quote-col.offset{padding-top:40px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:var(--primary-border)}
.quote-mark{font-size:34px;line-height:1;color:var(--primary-border);font-family:Georgia,serif}
.quote-text{margin-top:12px;font-size:15px;color:var(--body)}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{width:48px;height:48px;border-radius:50%;flex:none;background-color:#E6EEF8;background-size:cover;background-position:center;border:1px solid var(--line)}
.quote-person strong{display:block;font-size:15px;color:var(--title)}
.quote-person span{font-size:13px;color:var(--muted)}
@media (max-width:900px){
  .quotes{grid-template-columns:1fr}
  .quote-col.offset{padding-top:0}
}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:160px 1fr auto;gap:24px;align-items:center;padding:22px 20px;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.news-row:hover{background:#F7FAFE}
.news-row:hover .news-title{color:var(--primary)}
.news-thumb{width:160px;height:100px;border-radius:var(--r-img);overflow:hidden;background-color:#E9EFF7;flex:none}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-title{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease)}
.news-summary{margin-top:8px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:10px}
.news-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:120px}
.news-side time{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff}
.empty-icon{width:48px;height:48px;margin:0 auto 16px;border-radius:50%;background:var(--primary-light);border:1px solid var(--primary-border);display:grid;place-items:center;color:var(--primary);font-size:20px;font-weight:700}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px}
@media (max-width:900px){
  .news-row{grid-template-columns:130px 1fr;gap:18px;padding:18px 12px}
  .news-thumb{width:130px;height:82px}
  .news-side{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:space-between;min-width:0}
}
@media (max-width:600px){
  .news-row{grid-template-columns:1fr;gap:14px}
  .news-thumb{width:100%;height:180px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:22px 24px;font-size:17px;font-weight:600;color:var(--title);transition:color .2s var(--ease),background .2s var(--ease)}
.faq-q:hover{color:var(--primary);background:#FAFCFF}
.faq-item.open .faq-q{color:var(--primary)}
.faq-icon{flex:none;width:24px;height:24px;position:relative;border-radius:50%;border:1px solid var(--primary-border);background:var(--primary-light);transition:transform .2s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease)}
.faq-item.open .faq-a{max-height:400px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--body)}
@media (max-width:600px){.faq-q{padding:18px;font-size:16px}.faq-a p{padding:0 18px 18px}}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary);color:#fff;padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-inner h2{color:#fff;font-size:28px;max-width:620px}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.85);max-width:560px}
.cta-actions{display:flex;gap:14px;flex:none}
@media (max-width:900px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .cta-inner h2{font-size:22px}
  .cta-band{padding:48px 0}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C7D6E6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 3fr 2.5fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--primary)}
.footer-col p{font-size:14px;line-height:1.8;color:#B9CCE0}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#B9CCE0;transition:color .2s var(--ease)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{display:grid;gap:10px;font-size:14px;color:#B9CCE0}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between;font-size:13px;color:#9DB4CB}
.footer-bottom a{color:#9DB4CB}
.footer-bottom a:hover{color:#fff;text-decoration:underline}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --primary:#1E5FA8;
  --primary-dark:#174C87;
  --primary-light:#EDF3FB;
  --primary-border:#C9DCF2;
  --accent:#E28A2B;
  --title:#16212E;
  --text:#475467;
  --muted:#7A8798;
  --line:#E4E9F0;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --footer:#14314F;
  --success:#1E9E6A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,52,.05),0 1px 3px rgba(16,32,52,.06);
  --shadow-2:0 6px 16px -6px rgba(16,32,52,.10),0 2px 6px rgba(16,32,52,.05);
  --shadow-3:0 18px 40px -18px rgba(16,32,52,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.35;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1281px){.container{max-width:1280px;}}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--footer);color:#C7D6E6;font-size:12px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;width:100%;}
.topbar strong{color:#fff;font-weight:600;}
.topbar a{color:#C7D6E6;}
.topbar a:hover{color:#fff;text-decoration:underline;}
.topbar .tb-right{display:flex;align-items:center;gap:20px;}
@media (max-width:768px){.topbar{display:none;}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--title);letter-spacing:.01em;}
.logo:hover{color:var(--primary);}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;flex:0 0 auto;}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{position:relative;display:inline-block;padding:8px 16px;font-size:15px;color:var(--text);border-radius:8px;}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:var(--radius-btn);background:var(--primary);color:#fff;font-size:14px;font-weight:600;transition:background .2s var(--ease),transform .2s var(--ease);}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;position:relative;cursor:pointer;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;width:18px;height:2px;background:var(--title);transform:translateX(-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle span{top:19px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg) translateY(6px);}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg) translateY(-6px);}
@media (max-width:960px){
  .nav-list,.nav-actions .nav-cta{display:none;}
  .nav-toggle{display:block;}
}
.drawer-mask{position:fixed;inset:0;background:rgba(16,32,52,.45);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:70;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;width:82%;max-width:340px;height:100%;background:#fff;z-index:80;transform:translateX(100%);transition:transform .28s var(--ease);padding:24px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer h3{font-size:13px;color:var(--muted);font-weight:600;margin-bottom:6px;letter-spacing:.04em;}
.drawer a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--title);}
.drawer a:hover,.drawer a.active{background:var(--primary-light);color:var(--primary);}
.drawer .btn{margin-top:14px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;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);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-secondary:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-link{background:none;border:none;padding:0;height:auto;color:var(--primary);font-size:15px;font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.btn-link:hover{color:var(--primary-dark);text-decoration:none;}
.btn-lg{height:48px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C3CDD9;}
.breadcrumb .current{color:var(--muted);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{background:#fff;padding:40px 0 32px;border-bottom:1px solid var(--line);}
.article-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);border:1px solid var(--primary-border);border-radius:999px;padding:4px 12px;margin-bottom:18px;}
.article-head h1{font-size:34px;line-height:1.35;letter-spacing:.01em;max-width:900px;overflow-wrap:anywhere;}
.article-head .lead{margin-top:16px;font-size:16px;color:var(--text);max-width:820px;}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;}
.meta-bar .badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary);border:1px solid var(--primary-border);}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:#C3CDD9;}
@media (max-width:768px){
  .article-head{padding:28px 0 24px;}
  .article-head h1{font-size:24px;}
}

/* ---------- 正文区 ---------- */
.article-wrap{padding:48px 0 64px;}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 1fr;gap:48px;align-items:start;}
.article-layout.is-single{grid-template-columns:minmax(0,820px);justify-content:center;}
.article-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:40px;}
.article-body{font-size:16px;line-height:28px;color:var(--text);overflow-wrap:anywhere;}
.article-body h2{font-size:22px;margin-top:40px;margin-bottom:16px;padding-left:14px;position:relative;color:var(--title);}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);}
.article-body h3{font-size:18px;margin-top:28px;margin-bottom:12px;color:var(--title);}
.article-body h4{font-size:16px;margin-top:22px;margin-bottom:10px;color:var(--title);}
.article-body p{margin-bottom:18px;}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:18px;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{margin:24px 0;background:var(--primary-light);border-left:4px solid var(--primary);padding:20px 24px;border-radius:0 var(--radius-img) var(--radius-img) 0;font-size:16px;color:var(--title);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img,.article-body figure img{border-radius:var(--radius-img);margin:24px auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body .table-scroll{width:100%;overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:var(--radius-img);}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px;}
.article-body table th{background:var(--primary-light);color:var(--title);font-weight:600;text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body table td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body table tbody tr:nth-child(even){background:#FAFCFE;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-dark);text-decoration:none;}
.article-body strong{color:var(--title);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
@media (max-width:768px){
  .article-panel{padding:24px 20px;}
  .article-body table{min-width:460px;}
}

/* ---------- 空态 ---------- */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:16px;padding:56px 20px;border:1px dashed var(--primary-border);border-radius:var(--radius-card);background:var(--primary-light);}
.empty-state svg{width:48px;height:48px;stroke:var(--primary);fill:none;stroke-width:1.6;}
.empty-state p{font-size:15px;color:var(--text);}

/* ---------- 尾部标签 / 分享 ---------- */
.article-foot{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;color:var(--primary);background:var(--primary-light);border:1px solid var(--primary-border);}
.tag.accent{color:#A65F12;background:#FDF4E8;border-color:#F3D5A9;}
.share-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:22px;}
.share-btns{display:flex;gap:10px;}
.share-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s var(--ease);font-size:13px;font-weight:600;}
.share-btn:hover{border-color:var(--primary-border);background:var(--primary-light);color:var(--primary);transform:translateY(-1px);}
.return-link{font-size:14px;color:var(--muted);}
.return-link:hover{color:var(--primary);}

/* ---------- 侧栏 ---------- */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:24px;margin-bottom:24px;}
.side-card h3{font-size:16px;margin-bottom:14px;}
.side-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{color:var(--text);display:block;}
.side-list a:hover{color:var(--primary);}
.side-note{font-size:14px;color:var(--muted);line-height:1.8;}
.side-card.sticky{position:sticky;top:88px;}
.side-cta{background:var(--primary);border-radius:var(--radius-card);padding:24px;color:#fff;box-shadow:var(--shadow-3);}
.side-cta h3{color:#fff;font-size:16px;margin-bottom:10px;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.85);line-height:1.75;margin-bottom:16px;}
.side-cta .btn{width:100%;background:#fff;color:var(--primary);}
.side-cta .btn:hover{background:#F1F5FA;color:var(--primary-dark);}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-card.sticky{position:static;}
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section.tint{background:var(--primary-light);}
.section.white{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.06em;margin-bottom:12px;}
.section-head h2{font-size:30px;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text);}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:22px;}
}

/* ---------- 相关推荐 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-border);}
.rel-thumb{position:relative;aspect-ratio:16/10;background:#EEF2F7;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-body h3 a{color:var(--title);}
.rel-body h3 a:hover{color:var(--primary);}
.rel-meta{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:auto;}
@media (max-width:1024px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.grid-3{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);margin-bottom:12px;overflow:hidden;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 24px;font-size:17px;font-weight:600;color:var(--title);background:none;border:none;cursor:pointer;transition:color .2s var(--ease);}
.faq-q:hover{color:var(--primary);}
.faq-item.open .faq-q{color:var(--primary);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .2s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;}
.faq-icon::before{left:50%;top:4px;bottom:4px;width:2px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:4px;right:4px;height:2px;transform:translateY(-50%);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text);border-top:1px solid var(--line);padding-top:18px;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;}
.cta-inner h2{color:#fff;font-size:30px;}
.cta-inner p{color:rgba(255,255,255,.85);margin-top:10px;font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
@media (max-width:900px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C7D6E6;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);}
.footer-col p{font-size:14px;line-height:1.85;color:#B9CCE0;}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#B9CCE0;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact div{font-size:14px;color:#B9CCE0;margin-bottom:10px;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:#9FB6CE;}
.footer-bottom a{color:#9FB6CE;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
  --primary:#1E5FA8;
  --primary-dark:#174C87;
  --primary-light:#EDF3FB;
  --primary-border:#C9DCF2;
  --accent:#E28A2B;
  --title:#16212E;
  --text:#475467;
  --muted:#7A8798;
  --line:#E4E9F0;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --footer:#14314F;
  --ok:#1E9E6A;
  --warn:#D9822B;
  --err:#C9453A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,52,.05),0 1px 3px rgba(16,32,52,.06);
  --shadow-2:0 6px 16px -6px rgba(16,32,52,.10),0 2px 6px rgba(16,32,52,.05);
  --shadow-3:0 18px 40px -18px rgba(16,32,52,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{color:var(--title);line-height:1.35;margin:0;letter-spacing:.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1400px){:root{--container:1280px}}

/* ============ 顶部细条 ============ */
.topbar{background:#0F2743;color:#B9CCE0;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar strong{color:#fff;font-weight:600}
.topbar a{color:#B9CCE0}
.topbar a:hover{color:#fff;text-decoration:underline}
@media (max-width:768px){.topbar{display:none}}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--title);white-space:nowrap}
.logo:hover{color:var(--primary)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
  flex:none;
}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:10px 16px;font-size:15px;color:var(--text);
  border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.nav-cta:active{transform:translateY(1px);box-shadow:none}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--title);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,52,.45);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;background:#fff;
  transform:translateX(100%);transition:transform .28s var(--ease);z-index:80;
  display:flex;flex-direction:column;padding:24px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--title);font-size:18px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:13px 12px;border-radius:10px;color:var(--title);font-size:16px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--primary-light);color:var(--primary)}
.drawer-nav a.active{background:var(--primary-light);color:var(--primary);font-weight:600;border-color:var(--primary-border)}
.drawer-cta{
  margin-top:20px;display:flex;align-items:center;justify-content:center;
  height:48px;border-radius:var(--radius-btn);background:var(--primary);color:#fff;font-weight:600;
}
.drawer-cta:hover{background:var(--primary-dark);color:#fff}

/* ============ 面包屑 ============ */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--muted)}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;margin-top:20px;height:320px;border-radius:20px;overflow:hidden;
  background:#DDE7F2 url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  box-shadow:var(--shadow-1);
}
.cat-hero::after{content:"";position:absolute;inset:0;background:rgba(246,248,251,.12)}
.cat-hero-inner{
  position:relative;z-index:2;height:100%;display:flex;align-items:center;
  padding:0 40px;
}
.cat-hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 32px;max-width:660px;box-shadow:var(--shadow-3);
}
.cat-hero-panel .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;
  color:var(--primary);background:var(--primary-light);border-radius:999px;
  padding:4px 12px;margin-bottom:14px;font-weight:600;
}
.cat-hero-panel h1{font-size:30px;margin-bottom:12px}
.cat-hero-panel p{font-size:15px;color:var(--text);max-width:560px}
.cat-hero-panel .hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:16px;font-size:13px;color:var(--muted)}
.cat-hero-panel .hero-meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:3px 12px;
  margin-bottom:14px;letter-spacing:.04em;
}

/* ============ 栅格 ============ */
.layout-2col{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:24px;align-items:start}

/* ============ 入口卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-border)}
.entry-card .thumb{
  aspect-ratio:16/10;background:#EEF2F7;overflow:hidden;
}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover}
.entry-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-card h3{font-size:18px}
.entry-card p{font-size:14px;color:var(--text)}
.card-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;
  align-self:flex-start;
}
.card-link:hover{border-bottom-color:var(--primary);color:var(--primary-dark)}
.card-link::after{content:"›";font-size:16px;line-height:1}

/* ============ 粘性目录 ============ */
.sticky-toc{position:sticky;top:88px}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.toc-card h3{font-size:15px;margin-bottom:6px}
.toc-card .toc-hint{font-size:13px;color:var(--muted);margin-bottom:16px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text);border-left:2px solid transparent;
}
.toc-list a:hover{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary)}
.toc-list .idx{
  font-size:12px;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;
}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}

/* ============ 准备阶段：编号列表 ============ */
.prepare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.prepare-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.prepare-item{display:flex;gap:14px;align-items:flex-start}
.prepare-item .no{
  flex:none;width:30px;height:30px;border-radius:50%;border:1px solid var(--accent);
  color:var(--accent);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.prepare-item h3{font-size:16px;margin-bottom:6px}
.prepare-item p{font-size:14px;color:var(--text)}
.check-list{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text);align-items:flex-start}
.check-list li::before{
  content:"";flex:none;width:16px;height:16px;margin-top:5px;border-radius:50%;
  background:var(--primary-light);border:1px solid var(--primary-border);
  background-image:linear-gradient(var(--primary),var(--primary));
  background-size:8px 2px;background-position:center;background-repeat:no-repeat;
}

/* ============ 异常处理：双列浅底对照 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-col{
  background:var(--primary-light);border:1px solid var(--primary-border);
  border-radius:var(--radius-card);padding:28px;
}
.compare-col h3{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.compare-col h3 .tag{
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
  background:#fff;color:var(--primary);border:1px solid var(--primary-border);
}
.compare-col > p{font-size:14px;color:var(--text);margin-bottom:18px}
.compare-rows{display:flex;flex-direction:column;gap:12px}
.compare-rows .row{
  background:#fff;border-radius:12px;padding:14px 16px;border:1px solid rgba(201,220,242,.9);
}
.compare-rows .row strong{display:block;font-size:15px;color:var(--title);margin-bottom:4px}
.compare-rows .row span{font-size:14px;color:var(--text)}
.compare-rows .row.warn-row strong{color:var(--warn)}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;color:var(--title);font-weight:600;cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary);background:#F7FAFE}
.faq-item[open] summary{color:var(--primary)}
.faq-icon{
  flex:none;width:24px;height:24px;border-radius:50%;border:1px solid var(--primary-border);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .2s var(--ease);background:var(--primary-light);
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text)}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--primary);color:#fff;border-radius:20px;padding:48px;
  box-shadow:var(--shadow-3);display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex:none}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:#EAF1FA;color:var(--primary-dark);transform:translateY(-1px)}
.btn-white:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-secondary{background:#fff;color:var(--primary);border:1.5px solid var(--primary)}
.btn-secondary:hover{background:var(--primary-light);color:var(--primary-dark)}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#C7D6E6;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:40px;padding:64px 0 48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.8;color:#B9CCE0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#B9CCE0}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#B9CCE0}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#9FB6CD;
}
.footer-bottom a{color:#9FB6CD}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .layout-2col{grid-template-columns:1fr}
  .sticky-toc{position:static}
  .prepare-list{grid-template-columns:1fr}
  .check-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .nav-list{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .cat-hero{height:auto;min-height:320px;padding:28px 0}
  .cat-hero-inner{padding:0 20px}
  .cat-hero-panel{padding:22px}
  .cat-hero-panel h1{font-size:24px}
  .card-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .prepare-wrap{padding:24px}
  .check-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 36px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head h2{font-size:24px}
  .cta-band h2{font-size:24px}
  .cta-band{border-radius:16px;padding:28px}
  .faq-item summary{font-size:16px;padding:18px 20px}
  .faq-body{padding:0 20px 20px}
}
@media (max-width:520px){
  .logo span:last-child{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .cat-hero-panel h1{font-size:21px}
  .entry-card .body{padding:20px}
  .breadcrumb{padding-top:16px}
}

/* roulang page: category2 */
:root{
  --brand:#1E5FA8;
  --brand-dark:#174C87;
  --brand-soft:#EDF3FB;
  --brand-line:#C9DCF2;
  --accent:#E28A2B;
  --accent-soft:#FDF4E8;
  --title:#16212E;
  --text:#475467;
  --muted:#7A8798;
  --line:#E4E9F0;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --footer:#14314F;
  --footer-text:#C7D6E6;
  --ok:#1E9E6A;
  --warn:#D9822B;
  --err:#C9453A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,32,52,.05),0 1px 3px rgba(16,32,52,.06);
  --sh2:0 6px 16px -6px rgba(16,32,52,.10),0 2px 6px rgba(16,32,52,.05);
  --sh3:0 18px 40px -18px rgba(16,32,52,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.35;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
img{display:block;max-width:100%;height:auto;background:#EEF2F7;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
strong{color:var(--title);font-weight:600;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){ .container{max-width:1280px;} }

/* ---------- 顶栏 ---------- */
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--brand-line);font-size:13px;color:var(--brand);}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar-left{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--ok);display:inline-block;}
.topbar-right{display:inline-flex;align-items:center;gap:20px;white-space:nowrap;}
.topbar-right a{border-bottom:1px solid transparent;}
.topbar-right a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
@media (max-width:820px){ .topbar{display:none;} }

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--title);}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;flex:none;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-block;padding:0 16px;line-height:64px;font-size:15px;color:var(--text);}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;background:var(--brand);}
.nav-link:focus-visible{outline-offset:-4px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:15px;font-weight:600;transition:all .2s var(--ease);}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh2);}
.nav-cta:active{transform:translateY(1px);box-shadow:none;}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;position:relative;background:#fff;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--title);transform:translateX(-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
@media (max-width:900px){
  .nav-list{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{position:fixed;inset:0;background:rgba(16,32,52,.45);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:70;}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:80;padding:24px 20px;transform:translateX(102%);transition:transform .28s var(--ease);display:flex;flex-direction:column;gap:8px;overflow-y:auto;}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--title);margin-bottom:16px;}
.mobile-drawer a.drawer-link{display:block;padding:14px 12px;border-radius:10px;font-size:15px;color:var(--text);border:1px solid transparent;}
.mobile-drawer a.drawer-link:hover{background:var(--brand-soft);color:var(--brand);}
.mobile-drawer a.drawer-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-color:var(--brand-line);}
.drawer-cta{margin-top:auto;display:flex;align-items:center;justify-content:center;height:48px;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-weight:600;}
.drawer-cta:hover{background:var(--brand-dark);}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1.5px solid transparent;transition:all .2s var(--ease);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);}
.btn-outline:active{transform:translateY(1px);}
.btn-on-brand{background:#fff;color:var(--brand);}
.btn-on-brand:hover{background:#EAF2FC;transform:translateY(-1px);}
.btn-ghost-trans{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost-trans:hover{background:rgba(255,255,255,.12);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;border-bottom:1px solid rgba(30,95,168,.45);padding-bottom:2px;}
.link-arrow:hover{color:var(--brand-dark);border-bottom-color:transparent;}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);font-size:12px;}
.badge-accent{border:1px solid var(--accent);background:var(--accent-soft);color:#A9620F;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:24px 0 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3CDD9;}
.breadcrumb .current{color:var(--text);}

/* ---------- Hero ---------- */
.hero{padding:24px 0 0;background:#fff;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:40px 0 64px;}
.hero-copy .badge{margin-bottom:18px;}
.hero h1{font-size:44px;line-height:1.25;letter-spacing:.005em;max-width:620px;}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{margin-top:28px;display:grid;gap:10px;max-width:560px;}
.hero-points li{position:relative;padding-left:24px;font-size:15px;color:var(--text);}
.hero-points li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--accent);}
.hero-visual{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh3);background:#EEF2F7;aspect-ratio:4/3;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:24px 0 56px;}
  .hero h1{font-size:34px;}
  .hero-visual{aspect-ratio:16/10;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
}

/* ---------- 数字条 ---------- */
.stat-section{padding:32px 0 0;background:#fff;}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;}
.stat-item{padding:26px 28px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{display:flex;align-items:baseline;gap:6px;font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num small{font-size:14px;font-weight:600;color:var(--muted);}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;}
.stat-line{width:32px;height:3px;border-radius:2px;background:var(--accent);margin-top:12px;}
@media (max-width:768px){
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.06em;margin-bottom:12px;text-transform:uppercase;}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--accent);}
.section-head h2{font-size:30px;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text);}

/* ---------- 步骤时间线 ---------- */
.steps-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.steps{position:relative;}
.step{position:relative;display:grid;grid-template-columns:48px 1fr;gap:20px;padding-bottom:36px;}
.step:last-child{padding-bottom:0;}
.step::before{content:"";position:absolute;left:23px;top:48px;bottom:0;width:1px;background:var(--brand-line);}
.step:last-child::before{display:none;}
.step-num{width:48px;height:48px;border-radius:50%;background:#fff;border:1.5px solid var(--accent);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;z-index:1;}
.step-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);padding:22px 24px;transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--brand-line);}
.step-body h3{font-size:18px;}
.step-body p{margin-top:10px;font-size:15px;color:var(--text);}
.step-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.sticky-col{position:sticky;top:88px;display:grid;gap:20px;}
.figure{border-radius:var(--r-img);overflow:hidden;background:#EEF2F7;box-shadow:var(--sh2);}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-cap{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.aside-card{background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--r-card);padding:22px 24px;}
.aside-card h3{font-size:17px;}
.aside-card ul{margin-top:14px;display:grid;gap:10px;}
.aside-card li{position:relative;padding-left:20px;font-size:14px;color:var(--text);}
.aside-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
@media (max-width:1024px){
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .sticky-col{position:static;}
}

/* ---------- 两栏对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{border-radius:var(--r-card);padding:28px;border:1px solid var(--line);background:#fff;box-shadow:var(--sh1);}
.compare-col.alt{background:var(--brand-soft);border-color:var(--brand-line);box-shadow:none;}
.compare-col h3{font-size:20px;}
.compare-col .badge{margin-bottom:14px;}
.compare-list{margin-top:18px;display:grid;gap:12px;}
.compare-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text);}
.compare-list li::before{content:"";position:absolute;left:0;top:8px;width:14px;height:2px;border-radius:2px;background:var(--accent);}
.compare-col.alt .compare-list li::before{background:var(--brand);}
@media (max-width:768px){ .compare{grid-template-columns:1fr;} }

/* ---------- 自检清单 ---------- */
.check-list{display:grid;gap:16px;max-width:920px;}
.check-item{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--r-card);box-shadow:var(--sh1);padding:22px 24px;transition:box-shadow .2s var(--ease),transform .2s var(--ease);}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.check-index{font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.4;}
.check-item h3{font-size:17px;}
.check-item p{margin-top:8px;font-size:14.5px;color:var(--text);}
@media (max-width:520px){
  .check-item{grid-template-columns:1fr;gap:8px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);margin-bottom:14px;overflow:hidden;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:20px 24px;font-size:17px;font-weight:600;color:var(--title);transition:color .2s var(--ease);}
.faq-q:hover{color:var(--brand);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-icon{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--brand-line);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform .2s var(--ease),background-color .2s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text);border-top:1px solid var(--line);padding-top:16px;margin:0 0;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand);color:#fff;border-radius:0;}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:64px;padding-bottom:64px;}
.cta-band h2{color:#fff;font-size:30px;max-width:560px;}
.cta-band p{color:rgba(255,255,255,.86);margin-top:12px;font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none;}
@media (max-width:900px){
  .cta-band .container{flex-direction:column;align-items:flex-start;gap:24px;padding-top:48px;padding-bottom:48px;}
  .cta-band h2{font-size:24px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:var(--footer-text);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:#fff;color:var(--footer);}
.footer-col p{font-size:14px;color:#9FB6CE;line-height:1.8;max-width:340px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{font-size:14px;color:#B9CCE0;border-bottom:1px solid transparent;}
.footer-links a:hover{color:#fff;border-bottom-color:#fff;}
.footer-contact{display:grid;gap:12px;font-size:14px;color:#B9CCE0;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;color:#9FB6CE;}
.footer-bottom a{color:#9FB6CE;border-bottom:1px solid transparent;}
.footer-bottom a:hover{color:#fff;border-bottom-color:#fff;}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ---------- 断点补丁 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .section-head h2{font-size:26px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:28px;}
  .step{grid-template-columns:40px 1fr;gap:14px;}
  .step-num{width:40px;height:40px;font-size:15px;}
  .step::before{left:19px;top:44px;}
  .step-body{padding:18px 20px;}
}