/* roulang page: index */
:root{
  --blue:#1F5EDB;
  --blue-deep:#1748A8;
  --blue-soft:#E8F0FE;
  --green:#6CC24A;
  --green-deep:#4E9A2E;
  --green-soft:#EDF7E6;
  --orange:#F29C38;
  --orange-soft:#FFF3E2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EBF2;
  --ink:#101B2D;
  --ink-2:#55637A;
  --ink-3:#8A96A8;
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 2px 8px rgba(16,27,45,.06);
  --shadow-2:0 12px 28px rgba(31,94,219,.12);
  --shadow-3:0 8px 24px rgba(16,27,45,.08);
  --maxw:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-cn);background:var(--bg);color:var(--ink);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
time{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--green);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 4px 12px rgba(31,94,219,.18)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,94,219,.24)}
.btn-primary:active{transform:translateY(0);background:var(--blue-deep)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-ghost:hover{background:var(--blue-soft)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}

/* ---------- 标签 ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.7;letter-spacing:.2px}
.pill-blue{background:var(--blue-soft);color:var(--blue-deep)}
.pill-green{background:var(--green-soft);color:var(--green-deep)}
.pill-soft{background:#F1F4F9;color:var(--ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:600;font-size:15px;margin-top:16px}
.text-link i{font-style:normal;transition:transform .18s ease}
.text-link:hover{text-decoration:underline}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:0 4px 16px rgba(16,27,45,.07)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;flex-direction:column;line-height:1.05;flex:0 0 auto}
.brand-mark{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--blue);font-weight:600;letter-spacing:2.5px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--ink-2);font-weight:500;transition:background .16s ease,color .16s ease}
.nav-link:hover{background:var(--bg);color:var(--ink)}
.nav-link.active{color:var(--blue);background:var(--blue-soft);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;flex-direction:column;gap:5px;padding:0}
.nav-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 88px;background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FB 100%)}
.hero::before{content:"";position:absolute;right:-180px;top:-160px;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(31,94,219,.09),rgba(31,94,219,0) 68%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(28px,3.5vw,44px);line-height:1.24;letter-spacing:-.4px;margin:18px 0 16px}
.hero-sub{font-size:16.5px;color:var(--ink-2);max-width:560px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;gap:44px;margin:36px 0 0;padding-top:26px;border-top:1px solid var(--line);flex-wrap:wrap}
.hero-stats dt{font-family:var(--font-num);font-size:27px;font-weight:800;color:var(--blue);letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.hero-stats dd{margin:2px 0 0;font-size:13.5px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-figure{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-3);aspect-ratio:4/3;background:linear-gradient(135deg,var(--blue-soft),var(--green-soft))}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-badge-card{position:absolute;right:-12px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;display:flex;gap:12px;align-items:center;box-shadow:var(--shadow-3);min-width:214px}
.hero-badge-card strong{display:block;font-size:14.5px;color:var(--ink)}
.hero-badge-card p{font-size:12.5px;color:var(--ink-3);margin-top:2px;line-height:1.6}
.dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(108,194,74,.16);flex:0 0 auto}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{position:relative;padding-left:16px;font-size:clamp(23px,2.6vw,33px);margin-bottom:12px}
.section-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--green)}
.section-head p{color:var(--ink-2);font-size:16px;line-height:1.85}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none}

/* ---------- 频道入口 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.channel-media{aspect-ratio:16/9;overflow:hidden;background:var(--blue-soft)}
.channel-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.channel-card:hover .channel-media img{transform:scale(1.03)}
.channel-body{padding:24px}
.channel-body h3{font-size:21px;margin:12px 0 10px}
.channel-body p{color:var(--ink-2);font-size:15px;line-height:1.78}

/* ---------- 核对步骤 ---------- */
.check-grid{display:grid;grid-template-columns:1.32fr .68fr;gap:48px;align-items:start}
.step-list li{display:grid;grid-template-columns:92px 1fr;gap:24px;padding:28px 0;border-top:1px solid var(--line)}
.step-list li:last-child{border-bottom:1px solid var(--line)}
.step-num{font-family:var(--font-num);font-size:34px;font-weight:800;color:var(--green);line-height:1;font-variant-numeric:tabular-nums}
.step-list h3{font-size:19.5px;margin-bottom:8px}
.step-list p{color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:620px}
.side-figure{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-3);aspect-ratio:3/2;background:var(--blue-soft)}
.side-figure img{width:100%;height:100%;object-fit:cover}
.side-note{margin-top:18px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-1)}
.side-note strong{display:block;font-size:15px;margin-bottom:6px}
.side-note p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- 横向滚动服务 ---------- */
.rail{display:flex;gap:24px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:#D8E0EC;border-radius:3px}
.rail-card{flex:0 0 322px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.rail-media{aspect-ratio:3/2;overflow:hidden;background:var(--blue-soft)}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rail-card:hover .rail-media img{transform:scale(1.03)}
.rail-body{padding:20px 22px 24px}
.rail-body h3{font-size:18px;margin-bottom:8px}
.rail-body p{font-size:14.5px;color:var(--ink-2);line-height:1.78}

/* ---------- 证据区 ---------- */
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.quote-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-1)}
.quote-card p{font-size:17.5px;line-height:1.95;color:var(--ink)}
.quote-meta{margin-top:20px;font-size:13.5px;color:var(--ink-3)}
.case-list li{display:flex;justify-content:space-between;align-items:baseline;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.case-list li:first-child{padding-top:0}
.case-list h3{font-size:16.5px;font-weight:600}
.case-list span{font-size:13.5px;color:var(--ink-3);white-space:nowrap;font-family:var(--font-num)}

/* ---------- 最新信息 ---------- */
.cms-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:32px;align-items:start}
.cms-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .2s ease}
.cms-feature:hover{box-shadow:var(--shadow-2)}
.cms-feature-media{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--blue-soft)}
.cms-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.cms-feature:hover .cms-feature-media img{transform:scale(1.03)}
.cms-feature-body{padding:24px}
.cms-feature-body h3{font-size:20px;line-height:1.48;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-feature-body h3 a:hover{color:var(--blue)}
.cms-feature-body p{color:var(--ink-2);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-feature-body time{display:block;margin-top:14px;font-size:13px;color:var(--ink-3)}
.cms-list li+li{border-top:1px solid var(--line)}
.cms-list a{display:block;padding:20px 4px;transition:background .18s ease,padding-left .18s ease;border-radius:8px}
.cms-list a:hover{background:#FBFCFE;padding-left:12px}
.cms-list h3{font-size:16.5px;line-height:1.5;margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-list a:hover h3{color:var(--blue)}
.cms-list p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-list time{display:block;margin-top:8px;font-size:13px;color:var(--ink-3)}
.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:56px 24px;text-align:center;box-shadow:var(--shadow-1)}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--blue-soft);display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:22px;font-weight:700}
.empty-state p{color:var(--ink-3);font-size:15px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item.open{border-color:#CBDDF9;box-shadow:var(--shadow-3)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.55}
.faq-q:hover{color:var(--blue)}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--blue);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;font-size:15.5px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--blue-soft);border-radius:24px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:clamp(21px,2.4vw,29px);margin-bottom:10px}
.cta-band p{color:var(--ink-2);font-size:15.5px;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#A9B6C8;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-mark{color:#fff}
.footer-brand .brand-sub{color:#7FB0FF}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:#9DABBF;max-width:330px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col li{font-size:14.5px;line-height:2;color:#9DABBF}
.footer-col a{transition:color .16s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8CA3}
.footer-bottom span{line-height:1.8}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-sub{max-width:none}
  .check-grid,.proof-grid,.cms-grid,.faq-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;gap:22px}
}
@media (max-width:900px){
  .nav-inner{position:relative;gap:12px}
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;margin-left:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 26px rgba(16,27,45,.1);padding:0}
  .nav-links.open{display:flex}
  .nav-link{padding:15px 24px;border-radius:0;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav-link:last-child{border-bottom:0}
  .nav-link:hover{background:#FBFCFE}
  .nav-link.active{background:var(--blue-soft)}
  .nav-actions{margin-left:auto}
}
@media (max-width:768px){
  .channel-grid{grid-template-columns:1fr}
  .hero-stats{gap:28px}
  .cta-band{padding:32px 26px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:40px 0 60px}
  .hero h1{letter-spacing:0}
  .hero-actions .btn{width:100%}
  .hero-badge-card{position:static;margin-top:16px;right:auto;bottom:auto}
  .rail-card{flex:0 0 84%}
  .step-list li{grid-template-columns:54px 1fr;gap:16px;padding:22px 0}
  .step-num{font-size:26px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .case-list li{flex-direction:column;gap:6px}
  .case-list span{white-space:normal}
  .nav-actions .btn-sm{display:none}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
  .cms-feature-body,.channel-body,.quote-card{padding:22px}
}
@media (max-width:520px){
  .nav-links{left:-20px;right:-20px}
  .nav-link{padding:14px 20px}
  .cta-band h2{font-size:20px}
}

/* roulang page: article */
:root{
  --blue:#1F5EDB;
  --blue-dark:#1748A8;
  --blue-light:#E8F0FE;
  --green:#6CC24A;
  --green-dark:#4E9A2E;
  --green-light:#EDF7E6;
  --orange:#F29C38;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EBF2;
  --text:#101B2D;
  --text-2:#55637A;
  --text-3:#8A96A8;
  --footer:#0E1A2B;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 2px 8px rgba(16,27,45,.06);
  --shadow-2:0 12px 28px rgba(31,94,219,.12);
  --shadow-3:0 8px 24px rgba(16,27,45,.08);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
time,.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,27,45,.08);}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex-shrink:0;}
.brand-mark{font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.18em;color:var(--blue);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--bg);color:var(--text);}
.nav-link:focus-visible{outline:2px solid var(--green);outline-offset:2px;}
.nav-link.active{background:var(--blue-light);color:var(--blue);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle:focus-visible{outline:2px solid var(--green);outline-offset:2px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  text-align:center;
}
.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--blue);color:var(--blue);}
.btn-ghost:hover{background:var(--blue-light);}
.btn-ghost:active{background:#dbe8fd;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--green);outline-offset:2px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-blue{background:var(--blue-light);color:var(--blue);}
.badge-green{background:var(--green-light);color:var(--green-dark);}
.badge-orange{background:#FDF1E1;color:#C97A16;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb .sep{color:#C6CFDC;}
.breadcrumb .current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article hero ---------- */
.article-hero{background:#fff;border-bottom:1px solid var(--line);padding:20px 0 40px;}
.article-hero .badge{margin:22px 0 14px;}
.article-title{
  font-size:clamp(23px,3.1vw,36px);line-height:1.35;font-weight:700;
  max-width:900px;margin:0 0 16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6CFDC;}
.article-meta time{color:var(--text-2);}
.article-cover{
  margin:0;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:16/9;background:linear-gradient(135deg,#E8F0FE,#F6F8FB);
  box-shadow:var(--shadow-1);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- layout ---------- */
.article-main{padding:44px 0 20px;}
.article-grid{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:40px;align-items:start;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);padding:34px 38px;
}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.95;color:#1F2A3A;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
  margin:36px 0 14px;padding-left:12px;border-left:4px solid var(--green);
}
.article-body h3{font-size:19px;line-height:1.5;margin:24px 0 10px;color:var(--text);}
.article-body h4{font-size:17px;margin:20px 0 8px;color:var(--text);}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 18px;}
.article-body ul li{list-style:disc;margin-bottom:10px;}
.article-body ol li{list-style:decimal;margin-bottom:10px;}
.article-body li::marker{color:var(--blue);}
.article-body blockquote{
  margin:24px 0;padding:16px 24px;background:var(--blue-light);
  border-left:3px solid var(--blue);border-radius:0 12px 12px 0;color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--blue-dark);}
.article-body strong{font-weight:700;color:var(--text);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.7;}
.article-body thead th{background:#F6F8FB;color:var(--text);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:hover{background:#FBFCFE;}

/* empty state */
.article-empty{text-align:center;padding:26px 0 14px;}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:var(--blue-light);display:flex;align-items:center;justify-content:center;
  font-size:26px;color:var(--blue);font-weight:700;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--text-2);max-width:460px;margin:0 auto 22px;}

/* ---------- tags & post nav ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;}
.tag-row .label{font-size:13px;color:var(--text-3);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-light);}
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;
}
.post-nav a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:#CFDCF5;}
.post-nav .dir{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px;}
.post-nav .txt{font-size:15px;font-weight:600;color:var(--text);}
.post-nav a:hover .txt{color:var(--blue);}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);padding:22px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--green);}
.side-list li+li{border-top:1px solid var(--line);}
.side-list a{display:block;padding:12px 0;transition:color .18s ease;}
.side-list a:hover{color:var(--blue);}
.side-list .cat{display:block;font-size:12px;color:var(--blue);margin-bottom:4px;}
.side-list .t{display:block;font-size:14px;line-height:1.6;font-weight:600;color:var(--text);}
.side-list a:hover .t{color:var(--blue);}
.side-list .d{display:block;font-size:12px;color:var(--text-3);margin-top:4px;}
.side-cta{
  background:var(--blue-light);border-radius:var(--radius);padding:24px 22px;
  border:1px solid #D5E3FB;
}
.side-cta h3{font-size:16px;margin-bottom:8px;}
.side-cta p{font-size:13px;color:var(--text-2);margin-bottom:16px;line-height:1.7;}

/* ---------- related ---------- */
.related{padding:52px 0 24px;}
.section-head{margin-bottom:26px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--green-dark);letter-spacing:.06em;margin-bottom:8px;
}
.section-head .eyebrow::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--green);}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.section-head p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:760px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFDCF5;}
.post-card .thumb{aspect-ratio:3/2;overflow:hidden;background:linear-gradient(135deg,#E8F0FE,#F6F8FB);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:18px;line-height:1.45;}
.post-card h3 a:hover{color:var(--blue);}
.post-card p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);}
.post-card .more{color:var(--blue);font-weight:600;display:inline-flex;align-items:center;gap:4px;}
.post-card .more::after{content:"→";transition:transform .18s ease;}
.post-card:hover .more::after{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{padding:26px 0 72px;}
.cta-inner{
  background:var(--blue-light);border-radius:24px;padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid #D5E3FB;
}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);line-height:1.4;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--text-2);margin:0;max-width:620px;}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#A9B6C8;padding:60px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{color:#fff;font-size:18px;}
.footer-brand .brand-sub{color:#7FA7F5;}
.footer-desc{font-size:14px;line-height:1.8;color:#A9B6C8;max-width:340px;margin:0;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li{font-size:14px;line-height:1.7;color:#A9B6C8;margin-bottom:10px;}
.footer-col ul li a{transition:color .18s ease;}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#7F8DA1;
}
.footer-bottom span:last-child{font-family:var(--font-num);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;margin:0;padding:8px 16px 16px;
    flex-direction:column;align-items:stretch;gap:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(16,27,45,.10);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-link{height:52px;border-radius:0;border-bottom:1px solid var(--line);justify-content:space-between;padding:0 4px;}
  .nav-link:last-child{border-bottom:0;}
  .nav-link.active{background:transparent;color:var(--blue);}
  .nav-actions .btn-sm{margin-left:auto;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .article-aside{position:static;}
  .article-card{padding:28px 26px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:32px 28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-hero{padding:16px 0 30px;}
  .article-main{padding:32px 0 12px;}
  .article-card{padding:22px 20px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:30px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .related{padding:36px 0 16px;}
  .cta-band{padding:18px 0 52px;}
  .cta-inner{padding:26px 22px;border-radius:18px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:44px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .breadcrumb .current{white-space:normal;max-width:100%;}
}
@media (max-width:519px){
  .article-title{font-size:22px;}
  .nav-actions .btn-sm{display:none;}
  .article-cover{aspect-ratio:4/3;}
}

/* roulang page: category1 */
:root{
  --blue:#1F5EDB;
  --blue-dark:#1748A8;
  --blue-deep:#123a86;
  --blue-light:#E8F0FE;
  --green:#6CC24A;
  --green-dark:#4E9A2E;
  --green-light:#EDF7E6;
  --orange:#F29C38;
  --orange-deep:#C97A16;
  --orange-light:#FDF0E2;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EBF2;
  --ink:#101B2D;
  --ink-2:#55637A;
  --ink-3:#8A96A8;
  --radius:16px;
  --shadow-1:0 2px 8px rgba(16,27,45,.06);
  --shadow-2:0 12px 28px rgba(31,94,219,.12);
  --shadow-3:0 8px 24px rgba(16,27,45,.08);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --num:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.cat1{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tint{background:#fff}
.section-head{max-width:780px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;padding-left:14px;border-left:4px solid var(--green);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16px}
a:focus-visible,button:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:8px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(16,27,45,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto}
.brand-mark{font-size:19px;font-weight:800;color:var(--blue);letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--ink-2);letter-spacing:2px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:background .2s ease,color .2s ease;white-space:nowrap}
.nav-link:hover{background:var(--bg);color:var(--ink)}
.nav-link.active{color:var(--blue);font-weight:600;background:var(--blue-light)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap;text-align:center}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,94,219,.22)}
.btn-primary:active{transform:none;background:var(--blue-deep);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn-ghost:hover{background:var(--blue-light)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
body.nav-open{overflow:hidden}

/* ---------- 面包屑 & Hero ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px}
.breadcrumb a{color:var(--ink-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb .sep{color:#C3CCDA}
.breadcrumb .current{color:var(--ink-2)}
.page-hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line);padding:48px 0 60px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.10;pointer-events:none}
.hero-veil{position:absolute;inset:0;background:linear-gradient(92deg,#ffffff 0%,rgba(255,255,255,.92) 52%,rgba(255,255,255,.62) 100%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:820px}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.5px;margin-bottom:18px}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:720px;margin-bottom:28px}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px}
.anchor-pill{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-2);transition:background .2s ease,border-color .2s ease,color .2s ease,transform .18s ease}
.anchor-pill:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-light);transform:translateY(-1px)}

/* ---------- 定义列表 ---------- */
.def-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden}
.def-row{display:grid;grid-template-columns:160px 1fr;gap:24px;padding:20px 26px;border-top:1px solid var(--line)}
.def-row:first-child{border-top:none}
.def-row dt{font-size:14px;font-weight:600;color:var(--ink-3);letter-spacing:.5px}
.def-row dd{font-size:16px;color:var(--ink);line-height:1.8}
.def-row .hl{color:var(--blue);font-weight:600}

/* ---------- 步骤 ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-1);transition:box-shadow .25s ease,transform .25s ease}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.step-num{display:block;font-family:var(--num);font-size:30px;font-weight:800;line-height:1;color:var(--green);letter-spacing:1px;font-variant-numeric:tabular-nums;margin-bottom:14px}
.step h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.step p{font-size:15px;color:var(--ink-2);line-height:1.8}
.step-note{margin-top:22px;display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:12px;background:var(--blue-light);color:var(--blue-dark);font-size:14px;font-weight:600}

/* ---------- 注意事项 ---------- */
.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.note{display:flex;gap:14px;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);transition:box-shadow .22s ease,transform .22s ease}
.note:hover{box-shadow:var(--shadow-3);transform:translateY(-2px)}
.note-icon{flex:0 0 28px;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;line-height:1;margin-top:3px}
.note.ok .note-icon{background:var(--green-light);color:var(--green-dark)}
.note.warn .note-icon{background:var(--orange-light);color:var(--orange-deep)}
.note h3{font-size:16px;font-weight:600;margin-bottom:6px}
.note p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- 图文条 ---------- */
.update-strip{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:stretch;margin-top:32px}
.figure-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1)}
.figure-card img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .35s ease}
.figure-card:hover img{transform:scale(1.03)}
.figure-card figcaption{padding:16px 20px;font-size:14px;color:var(--ink-2)}
.update-card{background:var(--blue-light);border-radius:var(--radius);padding:32px 30px;display:flex;flex-direction:column;justify-content:center}
.update-card h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--blue-dark)}
.update-card p{font-size:15px;color:var(--ink-2);line-height:1.85}
.update-card .tag{display:inline-flex;align-self:flex-start;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:#fff;color:var(--blue);font-size:13px;font-weight:600;margin-bottom:14px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item.open{box-shadow:var(--shadow-3);border-color:#D5E2FA}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer}
.faq-q:hover{color:var(--blue)}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;line-height:1;transition:transform .2s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 20px;font-size:16px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--blue-light);border-radius:22px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#A9B6C8;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.site-footer .brand-mark{color:#fff}
.site-footer .brand-sub{color:#7E8DA3}
.footer-desc{font-size:14px;line-height:1.8;margin-top:16px;max-width:320px;color:#A9B6C8}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li{font-size:14px;color:#A9B6C8;line-height:1.7}
.footer-col a{color:#A9B6C8;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E8DA3}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:60px 0}
  .steps{grid-template-columns:1fr}
  .step{display:grid;grid-template-columns:64px 1fr;gap:16px;align-items:start}
  .step-num{margin-bottom:0;grid-row:span 2}
  .note-grid{grid-template-columns:1fr}
  .update-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 26px rgba(16,27,45,.10);padding:8px 16px 18px}
  .nav-links.open{display:flex}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-link.active{background:transparent;color:var(--blue)}
  .nav-link:last-child{border-bottom:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:36px 0 48px}
  .def-row{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .step{grid-template-columns:1fr}
  .step-num{grid-row:auto;margin-bottom:10px}
  .cta-band{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .nav-actions .btn-sm{display:none}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .cta-band .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --blue:#1F5EDB;
  --blue-dark:#1748A8;
  --blue-light:#E8F0FE;
  --green:#6CC24A;
  --green-dark:#4E9A2E;
  --green-light:#EDF7E6;
  --orange:#F29C38;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EBF2;
  --text:#101B2D;
  --text-2:#55637A;
  --text-3:#8A96A8;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(16,27,45,.06);
  --sh-2:0 12px 28px rgba(31,94,219,.12);
  --sh-3:0 8px 24px rgba(16,27,45,.08);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--blue);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--blue-dark);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3);}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  flex-direction:column;
  line-height:1.15;
  text-decoration:none;
  flex:0 0 auto;
}
.brand-mark{
  font-size:19px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.3px;
}
.brand-sub{
  font-size:11px;
  font-weight:600;
  color:var(--blue);
  letter-spacing:3px;
  margin-top:3px;
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-block;
  padding:9px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--bg);color:var(--text);}
.nav-link.active{background:var(--blue-light);color:var(--blue);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background-color .18s ease;
}
.nav-toggle:hover{background:var(--bg);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:none;background:var(--blue-dark);}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--blue);}
.btn-ghost:hover{background:var(--blue-light);color:var(--blue-dark);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--blue);font-weight:600;font-size:15px;
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text .arrow{transition:transform .2s ease;}
.btn-text:hover{color:var(--blue-dark);text-decoration:underline;}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ---------- Breadcrumb ---------- */
.breadcrumbs{
  padding:22px 0 0;
  font-size:13px;
  color:var(--text-3);
  line-height:1.6;
}
.breadcrumbs a{color:var(--text-3);}
.breadcrumbs a:hover{color:var(--blue);}
.breadcrumbs .sep{margin:0 8px;color:#C4CDDA;}
.breadcrumbs .current{color:var(--text-2);}

/* ---------- Hero ---------- */
.page-hero{
  padding:28px 0 20px;
  background:radial-gradient(60% 70% at 88% 8%,rgba(31,94,219,.08),rgba(31,94,219,0) 70%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:52px;
  align-items:center;
  padding:24px 0 48px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--blue-light);
  color:var(--blue);
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--green);}
.page-title{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.22;
  font-weight:700;
  margin-top:20px;
  letter-spacing:.5px;
}
.page-lede{
  margin-top:18px;
  max-width:640px;
  font-size:17px;
  color:var(--text-2);
  line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:3/2;
  background:linear-gradient(135deg,#E8F0FE,#F6F8FB);
  box-shadow:var(--sh-3);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-tag{
  position:absolute;
  left:18px;bottom:18px;
  background:#fff;
  border-radius:12px;
  padding:12px 16px;
  box-shadow:var(--sh-3);
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.5;
}
.hero-tag strong{display:block;color:var(--text);font-size:14px;font-weight:600;}
.hero-tag .status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px var(--green-light);flex:0 0 auto;}

/* ---------- Stats ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.stat-item{
  padding:26px 24px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-family:Inter,"PingFang SC",sans-serif;
  font-size:32px;
  font-weight:700;
  color:var(--blue);
  line-height:1.2;
  letter-spacing:.5px;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--blue);margin-left:2px;}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-3);}

/* ---------- Section shell ---------- */
.section{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-kicker{
  font-size:13px;
  font-weight:600;
  color:var(--green-dark);
  letter-spacing:2px;
  display:inline-block;
  padding-left:14px;
  position:relative;
}
.section-kicker::before{
  content:"";
  position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;
  background:var(--green);
}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.32;
  font-weight:700;
  margin-top:12px;
  letter-spacing:.4px;
}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px;max-width:720px;}

/* ---------- Service rows ---------- */
.svc-list{border-bottom:1px solid var(--line);}
.svc-row{
  display:grid;
  grid-template-columns:1fr 400px;
  gap:48px;
  align-items:center;
  padding:36px 0;
  border-top:1px solid var(--line);
}
.svc-row.alt{grid-template-columns:400px 1fr;}
.svc-row.alt .svc-thumb{order:-1;}
.svc-num{
  display:inline-grid;
  place-items:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--green-light);
  color:var(--green-dark);
  font-family:Inter,sans-serif;
  font-size:15px;
  font-weight:700;
  letter-spacing:.5px;
}
.svc-title{font-size:20px;font-weight:600;margin-top:16px;line-height:1.45;}
.svc-desc{margin-top:10px;color:var(--text-2);max-width:600px;}
.svc-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:16px;}
.svc-points li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--text-2);
}
.svc-points li::before{
  content:"";
  position:absolute;left:0;top:8px;
  width:12px;height:7px;
  border-left:2px solid var(--green-dark);
  border-bottom:2px solid var(--green-dark);
  transform:rotate(-45deg);
  border-radius:1px;
}
.svc-thumb{
  aspect-ratio:3/2;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:linear-gradient(135deg,#E8F0FE,#F6F8FB);
}
.svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.svc-thumb:hover img{transform:scale(1.03);}

/* ---------- Rail ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:42px;height:42px;
  border-radius:50%;
  border:1.5px solid var(--line);
  background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.rail-btn:hover{background:var(--blue-light);border-color:var(--blue-light);color:var(--blue);}
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:8px;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:#D4DDE9;border-radius:999px;}
.rail-card{
  flex:0 0 340px;
  scroll-snap-align:start;
  background:#fff;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .22s ease,transform .22s ease;
}
.rail-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.rail-card .thumb{aspect-ratio:3/2;overflow:hidden;background:var(--blue-light);}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rail-card:hover .thumb img{transform:scale(1.03);}
.rail-body{padding:20px 22px 24px;}
.rail-card h3{font-size:18px;font-weight:600;line-height:1.45;}
.rail-card p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.75;}
.tag{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--blue-light);
  color:var(--blue);
}
.tag-green{background:var(--green-light);color:var(--green-dark);}
.rail-body .tag{margin-bottom:10px;}

/* ---------- Flow ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:8px;
}
.flow-step{position:relative;padding-right:16px;}
.flow-step::after{
  content:"";
  position:absolute;
  top:15px;left:34px;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--blue-light),rgba(232,240,254,.2));
}
.flow-step:last-child::after{display:none;}
.flow-dot{
  width:32px;height:32px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--blue);
  color:var(--blue);
  display:grid;place-items:center;
  font-family:Inter,sans-serif;
  font-size:14px;font-weight:700;
  position:relative;z-index:1;
}
.flow-step h3{font-size:17px;font-weight:600;margin-top:16px;}
.flow-step p{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:56px;
  align-items:start;
}
.faq-aside p{color:var(--text-2);margin-top:14px;max-width:420px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.open{border-color:#CFDDF7;box-shadow:var(--sh-3);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.faq-q:hover{color:var(--blue-dark);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--blue-light);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--blue);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a-inner{
  padding:0 22px 22px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
}
.faq-item.open .faq-a{max-height:340px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--blue-light);
  border-radius:24px;
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;letter-spacing:.4px;}
.cta-band p{margin-top:10px;color:var(--text-2);max-width:620px;font-size:16px;}

/* ---------- Footer ---------- */
.site-footer{
  background:#0E1A2B;
  color:#A9B6C8;
  margin-top:76px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand-mark{color:#fff;}
.site-footer .brand-sub{color:#7FA7F5;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#A9B6C8;max-width:340px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:#A9B6C8;line-height:1.7;}
.footer-col a{color:#A9B6C8;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8394AA;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding-top:12px;}
  .svc-row,.svc-row.alt{grid-template-columns:1fr;gap:24px;}
  .svc-row.alt .svc-thumb{order:0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .flow-step:nth-child(2)::after{display:none;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;
    top:68px;left:0;right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 20px 22px;
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-3);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-link{
    padding:15px 6px;
    border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:16px;
  }
  .nav-link.active{background:transparent;color:var(--blue);}
  .nav-actions .btn-sm{display:none;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .page-hero{padding-bottom:8px;}
  .page-title{font-size:28px;line-height:1.3;letter-spacing:0;}
  .page-lede{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:20px;}
  .stat-item:last-child{border-bottom:0;}
  .svc-title{font-size:18px;}
  .section-title{font-size:24px;}
  .rail-card{flex:0 0 82%;}
  .flow{grid-template-columns:1fr;gap:22px;}
  .flow-step{padding-left:0;padding-right:0;}
  .flow-step::after{
    top:36px;left:15px;right:auto;
    width:2px;height:24px;
    background:linear-gradient(180deg,var(--blue-light),rgba(232,240,254,.2));
  }
  .flow-step:nth-child(2)::after{display:block;}
  .flow-step:last-child::after{display:none;}
  .cta-band{padding:30px 24px;border-radius:18px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:48px;margin-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:15px;}
}