/* roulang page: index */
:root{
  --brand:#1552C6;
  --brand-deep:#0B2A55;
  --brand-soft:#E8EFFB;
  --spark:#FF6B2C;
  --spark-soft:#FFF1E8;
  --page:#F5F7FB;
  --card:#FFFFFF;
  --line:#E3E8F0;
  --text:#475569;
  --muted:#64748B;
  --title:#0B2A55;
  --divider:rgba(11,42,85,.08);
  --ok:#12A67A;
  --warn:#D97706;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(11,42,85,.06),0 8px 24px rgba(11,42,85,.08);
  --shadow-hover:0 14px 34px rgba(11,42,85,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--page);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.readable{max-width:800px}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--brand-deep);color:#fff}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:40px;font-size:13px}
.topbar-status{display:inline-flex;align-items:center;gap:8px;flex:none;color:rgba(255,255,255,.86);letter-spacing:.02em}
.topbar-status .dot{width:7px;height:7px;border-radius:999px;background:#33E3A6;box-shadow:0 0 0 4px rgba(51,227,166,.18);flex:none}
.topbar-count{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.78)}
.cd-unit{display:inline-flex;align-items:baseline;gap:3px;background:rgba(255,255,255,.12);border-radius:8px;padding:2px 7px}
.cd-unit b{font-variant-numeric:tabular-nums;font-weight:700;font-size:14px;color:#fff;letter-spacing:.02em}
.cd-unit em{font-style:normal;font-size:11px;color:rgba(255,255,255,.72)}
.topbar-link{color:#fff;font-weight:600;flex:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px;transition:border-color .2s,color .2s}
.topbar-link:hover{color:#FFD9C2;border-color:#FFD9C2}
.topbar-link .long{display:inline}
.topbar-link .short{display:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(11,42,85,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:76px;transition:min-height .22s ease-out}
.site-header.is-scrolled .nav-inner{min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:none;height:44px}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;flex:none;box-shadow:0 4px 12px rgba(21,82,198,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;color:var(--brand-deep);font-weight:700}
.logo-text small{font-size:11.5px;color:var(--muted);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:8px;color:#334155;font-size:15px;font-weight:500;transition:color .18s,background-color .18s}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.nav-actions .text-link{font-size:14.5px;font-weight:600;color:var(--brand);transition:color .18s}
.nav-actions .text-link:hover{color:var(--brand-deep)}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .2s,opacity .2s}
.hamburger.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.is-active span:nth-child(2){opacity:0}
.hamburger.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer{position:fixed;inset:0;z-index:80;display:none}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(11,42,85,.45)}
.drawer-panel{position:absolute;top:0;right:0;width:min(340px,88vw);height:100%;background:#fff;box-shadow:-12px 0 40px rgba(11,42,85,.22);display:flex;flex-direction:column;padding:20px}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:20px;color:var(--brand-deep);line-height:1}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;font-size:16px;color:#334155;font-weight:500}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-cta{margin-top:auto;padding-top:16px;border-top:1px solid var(--divider)}
.drawer-cta .btn-primary{width:100%;justify-content:center}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:none;border-radius:var(--radius-btn);
  background:var(--spark);color:#fff;font-size:15.5px;font-weight:600;
  transition:background-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary:hover{background:#ED5A18;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,107,44,.28)}
.btn-primary:active{background:#D9500F;transform:translateY(0);box-shadow:none}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:#fff;color:var(--brand);border:1px solid var(--brand);
  font-size:15.5px;font-weight:600;transition:background-color .2s,color .2s,transform .2s;
}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:#D9E4F9}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.btn-link .arrow{transition:transform .2s ease-out;display:inline-block}
.btn-link:hover .arrow{transform:translateX(4px)}
.btn-link:hover{color:var(--brand-deep)}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;line-height:1.5}
.tag-blue{background:var(--brand-soft);color:var(--brand)}
.tag-spark{background:var(--spark-soft);color:#C74A11}
.tag-ok{background:rgba(18,166,122,.1);color:var(--ok)}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted)}

/* ---------- 区块 ---------- */
.section{padding:96px 0}
.sec-bar{display:block;width:44px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--spark),var(--brand));margin-bottom:16px}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-head .sec-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:640px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- 卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-hover{transition:box-shadow .2s ease-out,transform .2s ease-out}
.card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}

/* ---------- HERO ---------- */
.hero{padding:72px 0 88px;background:#fff;border-bottom:1px solid var(--divider)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero h1{font-size:42px;line-height:1.25;letter-spacing:-.01em}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--text);max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;font-size:13.5px;color:var(--muted)}
.hero-meta .sep{width:4px;height:4px;border-radius:999px;background:#C9D3E3}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;min-height:430px;background:#EDF1F8;box-shadow:var(--shadow)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,42,85,.02) 20%,rgba(11,42,85,.42))}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:auto;max-width:300px;
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;
  background:#fff;box-shadow:0 12px 30px rgba(11,42,85,.2)
}
.hero-float img{width:48px;height:48px;border-radius:10px;object-fit:cover;flex:none}
.hero-float-txt{display:flex;flex-direction:column;line-height:1.35}
.hero-float-txt .t{font-size:14px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums}
.hero-float-txt .s{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- 价值主张条 ---------- */
.valuebar{background:#fff;border-bottom:1px solid var(--divider)}
.valuebar-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.value-item{padding:28px 26px;border-right:1px solid var(--divider)}
.value-item:last-child{border-right:none}
.value-item .num{font-size:28px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2}
.value-item .num em{font-style:normal;font-size:15px;color:var(--spark);margin-left:2px}
.value-item .lbl{margin-top:6px;font-size:13.5px;color:var(--muted)}
.value-item .sub{margin-top:8px;font-size:14px;color:var(--text)}

/* ---------- 功能分组 ---------- */
.feat-hero{overflow:hidden;display:flex;flex-direction:column}
.feat-hero img{width:100%;height:230px;object-fit:cover;border-radius:16px 16px 0 0}
.feat-hero-body{padding:28px}
.feat-hero-body h3{font-size:22px;margin:14px 0 10px;line-height:1.4}
.feat-hero-body p{font-size:15px;color:var(--text)}
.feat-hero-body .btn-link{margin-top:18px}
.feat-list{display:flex;flex-direction:column}
.feat-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--divider)}
.feat-item:first-child{padding-top:0}
.feat-item:last-child{border-bottom:none;padding-bottom:0}
.feat-icon{width:40px;height:40px;border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;flex:none;color:var(--brand)}
.feat-icon svg{width:20px;height:20px}
.feat-item h3{font-size:17px;line-height:1.45}
.feat-item p{margin-top:6px;font-size:14.5px;color:var(--muted)}

/* ---------- 使用场景 ---------- */
.scene-title h2{font-size:30px;line-height:1.3}
.scene-title p{margin-top:14px;font-size:15px;color:var(--muted)}
.scene-list{border-top:1px solid var(--divider)}
.scene-item{display:grid;grid-template-columns:76px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--divider);transition:background-color .2s}
.scene-item:hover{background:rgba(232,239,251,.45)}
.scene-num{font-size:30px;font-weight:700;color:#C7D8F5;font-variant-numeric:tabular-nums;line-height:1.15;text-align:left}
.scene-item h3{font-size:19px;line-height:1.45}
.scene-item p{margin-top:8px;font-size:15px;color:var(--text)}

/* ---------- 成功案例 ---------- */
.case-card{padding:28px;display:flex;flex-direction:column}
.case-metric{display:flex;align-items:baseline;gap:10px;margin-bottom:16px}
.case-metric .big{font-size:38px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.1}
.case-quote{font-size:15.5px;color:var(--text);line-height:1.8}
.case-src{margin-top:auto;padding-top:20px;font-size:13.5px;color:var(--muted)}
.case-tape{margin-top:36px;display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{position:relative;padding:30px 26px;display:flex;flex-direction:column}
.price-card.featured{border-top:4px solid var(--spark);padding:38px 30px;box-shadow:var(--shadow-hover);transform:translateY(-10px)}
.price-card .plan{font-size:17px;font-weight:700;color:var(--brand-deep)}
.price-card .plan-desc{margin-top:8px;font-size:14px;color:var(--muted);min-height:44px}
.price-num{margin-top:18px;display:flex;align-items:baseline;gap:6px}
.price-num b{font-size:38px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.1}
.price-card.featured .price-num b{font-size:44px;color:var(--spark)}
.price-num span{font-size:14px;color:var(--muted)}
.price-badge{position:absolute;top:-13px;right:22px;background:var(--spark);color:#fff;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:999px;letter-spacing:.02em}
.price-feats{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px}
.price-feats li{display:flex;gap:10px;font-size:14.8px;color:var(--text);line-height:1.6}
.price-feats li::before{content:"";width:16px;height:16px;flex:none;margin-top:5px;border-radius:999px;background:var(--brand-soft);border:1px solid #C9DCF8}
.price-card .btn-ghost,.price-card .btn-primary{width:100%;margin-top:auto}

/* ---------- 最新信息（CMS） ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cms-card{display:flex;flex-direction:column;overflow:hidden;color:inherit}
.cms-thumb{height:172px;background:#EDF1F8;overflow:hidden;border-radius:16px 16px 0 0}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.cms-card:hover .cms-thumb img{transform:scale(1.04)}
.cms-body{padding:22px;display:flex;flex-direction:column;flex:1}
.cms-body .tag{align-self:flex-start}
.cms-title{margin-top:12px;font-size:17px;line-height:1.5;color:var(--brand-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-summary{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.cms-empty{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:56px 24px;text-align:center}
.cms-empty .ico{width:52px;height:52px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px}
.cms-empty p{font-size:15px;color:var(--muted)}
.cms-empty .btn-link{margin-top:14px}

/* ---------- FAQ ---------- */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--divider)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;background:none;border:none;text-align:left;font-size:17px;font-weight:600;color:var(--brand-deep);line-height:1.55;transition:background-color .18s}
.faq-q:hover{background:rgba(232,239,251,.5)}
.faq-icon{width:22px;height:22px;position:relative;flex:none;transition:transform .25s ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.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{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out}
.faq-a-in{padding:0 26px 24px}
.faq-a-in p{font-size:15px;line-height:1.8;color:var(--text)}

/* ---------- 底部 CTA + 表单 ---------- */
.cta-block{background:var(--brand-soft);padding:88px 0}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-left h2{font-size:30px;line-height:1.32}
.cta-left p{margin-top:16px;font-size:15.5px;color:var(--text);max-width:460px}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:14.8px;color:var(--text)}
.cta-list li::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--spark);margin-top:9px;flex:none}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--brand-deep);margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:15px;color:var(--text);background:#fff;transition:border-color .18s,box-shadow .18s;
}
.form-row textarea{min-height:96px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,82,198,.16)
}
.form-err{display:none;margin-top:6px;font-size:13px;color:#DC2626}
.form-err.show{display:block}
.form-privacy{margin-top:14px;font-size:12px;color:var(--muted);line-height:1.7}
.form-ok{display:none;margin-top:16px;padding:12px 14px;border-radius:var(--radius-btn);background:rgba(18,166,122,.1);color:#0E7D5C;font-size:14px}
.form-ok.show{display:block}
.form-card .btn-primary{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.site-footer a{color:rgba(255,255,255,.72);font-size:14.5px;transition:color .18s}
.site-footer a:hover{color:#fff}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);max-width:330px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-contact p{font-size:14.5px;line-height:1.8;margin-bottom:10px}
.footer-contact .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);margin-top:8px}
.footer-contact .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:24px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom .compliance{color:rgba(255,255,255,.55)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero{padding:56px 0 68px}
  .hero h1{font-size:34px}
  .valuebar-inner{grid-template-columns:repeat(2,1fr)}
  .value-item:nth-child(2){border-right:none}
  .value-item:nth-child(1),.value-item:nth-child(2){border-bottom:1px solid var(--divider)}
  .price-card.featured{transform:none;padding:30px 26px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .nav-links{display:none}
  .nav-actions .text-link{display:none}
  .hamburger{display:flex}
}
@media (max-width:900px){
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;gap:20px}
}
@media (max-width:768px){
  .container-x{padding:0 20px}
  .section{padding:56px 0}
  .sec-head h2,.scene-title h2,.cta-left h2{font-size:23px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:16px}
  .hero-visual{min-height:260px;max-height:260px}
  .hero-float{left:14px;right:14px;bottom:14px;max-width:none}
  .cta-block{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .logo-text strong{font-size:16px}
  .logo-text small{font-size:11px}
}
@media (max-width:640px){
  .cms-grid{grid-template-columns:1fr}
  .valuebar-inner{grid-template-columns:1fr}
  .value-item{border-right:none;border-bottom:1px solid var(--divider)}
  .value-item:last-child{border-bottom:none}
  .topbar-status{display:none}
  .topbar-count{gap:6px}
  .topbar-label{display:none}
  .topbar-link .long{display:none}
  .topbar-link .short{display:inline}
  .scene-item{grid-template-columns:56px 1fr;gap:14px}
  .scene-num{font-size:24px}
  .faq-q{padding:18px 16px;font-size:16px}
  .faq-a-in{padding:0 16px 20px}
  .hero-btns .btn-primary,.hero-btns .btn-ghost{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#1552C6;
  --brand-deep:#0B2A55;
  --brand-soft:#E8EFFB;
  --spark:#FF6B2C;
  --spark-soft:#FFF1E8;
  --page:#F5F7FB;
  --card:#FFFFFF;
  --line:#E3E8F0;
  --text:#475569;
  --text-2:#64748B;
  --head:#0B2A55;
  --divider:rgba(11,42,85,.08);
  --ok:#12A67A;
  --warn:#D97706;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(11,42,85,.06),0 8px 24px rgba(11,42,85,.08);
  --sh-2:0 14px 34px rgba(11,42,85,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--head);line-height:1.3;font-weight:700}
p{margin:0}
ol,ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container-x{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:72px 0}
.section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:30px;letter-spacing:.005em}
.sec-head p{margin-top:12px;font-size:15px;color:var(--text-2)}

/* 顶部活动条 */
.topbar{background:var(--brand-deep);color:rgba(255,255,255,.8);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding-top:4px;padding-bottom:4px}
.status-chip{display:inline-flex;align-items:center;gap:8px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.1);font-size:12px;letter-spacing:.02em;white-space:nowrap}
.status-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(18,166,122,.25)}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.cd-cell{display:flex;align-items:baseline;gap:4px;padding:3px 8px;border-radius:8px;background:rgba(255,255,255,.1)}
.cd-cell b{color:#fff;font-size:15px;font-weight:700}
.cd-cell em{font-style:normal;font-size:11px;opacity:.7}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:#fff;font-size:13px;white-space:nowrap;transition:opacity .2s ease}
.topbar-link:hover{opacity:.78}

/* 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.is-scrolled{box-shadow:0 6px 20px rgba(11,42,85,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.site-header.is-scrolled .nav-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:linear-gradient(135deg,#1552C6,#3A78E8);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;color:var(--head);letter-spacing:.01em}
.logo-text small{font-size:11px;color:var(--text-2);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links a{position:relative;padding:6px 0;font-weight:500;color:var(--text);transition:color .2s ease}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transition:transform .2s ease}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:18px}
.link-muted{font-size:14px;color:var(--text-2);transition:color .2s ease}
.link-muted:hover{color:var(--brand)}
.menu-btn{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--head)}

/* 按钮 */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 20px;border-radius:var(--r-sm);background:var(--spark);color:#fff;font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease,box-shadow .2s ease}
.btn-primary:hover{background:#e85c1f;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,107,44,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 20px;border-radius:var(--r-sm);background:#fff;color:var(--brand);border:1px solid var(--brand);font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease,box-shadow .2s ease}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 8px 20px rgba(21,82,198,.14)}
.btn-outline:active{transform:translateY(0);box-shadow:none}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:14px;transition:background .2s ease,border-color .2s ease}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6)}

/* 分类页 Hero */
.cat-hero{background:var(--brand-soft);border-bottom:1px solid var(--line);padding:46px 0 42px;position:relative;overflow:hidden}
.cat-hero::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(21,82,198,.06)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:44px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:14px}
.crumbs a{transition:color .2s ease}
.crumbs a:hover{color:var(--brand)}
.crumbs .cur{color:#94A3B8}
.cat-hero h1{font-size:42px;line-height:1.25;letter-spacing:.005em;max-width:760px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text);max-width:680px}
.hero-side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.tag-outline{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;border:1px solid rgba(21,82,198,.3);background:#fff;color:var(--brand);font-size:12px;letter-spacing:.02em}
.hero-stat{display:flex;align-items:baseline;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid var(--divider)}
.hero-stat b{font-size:26px;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-stat span{font-size:14px;color:var(--text-2)}

/* 锚点索引条 */
.anchor-bar{background:#fff;border-bottom:1px solid var(--line);padding:13px 0}
.anchor-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-label{flex:0 0 auto;font-size:13px;color:var(--text-2);letter-spacing:.04em;padding-right:6px;border-right:1px solid var(--line);margin-right:4px}
.anchor-pill{flex:0 0 auto;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--text);transition:all .2s ease}
.anchor-pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.anchor-pill:active{transform:translateY(1px)}

/* 图文模块 */
.feature-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:center;padding:48px 0}
.feature-row + .feature-row{border-top:1px solid var(--divider)}
.feature-row:first-child{padding-top:0}
.feature-row:last-child{padding-bottom:0}
.feature-row:nth-child(even) .feature-copy{order:2}
.feature-row:nth-child(even) .feature-media{order:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand)}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--spark),var(--brand))}
.feature-copy h2{font-size:28px;margin:10px 0 14px}
.feature-copy > p{font-size:15.5px;color:var(--text)}
.step-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-no{flex:0 0 34px;height:34px;border-radius:var(--r-md);background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.step-list h4{margin:3px 0 4px;font-size:16px}
.step-list p{font-size:14.5px;color:var(--text);line-height:1.7}
.feature-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#E9EDF4;transition:box-shadow .2s ease,transform .2s ease}
.feature-media:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.feature-media img{width:100%;aspect-ratio:4/3;height:100%;object-fit:cover}

/* 对照表 */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.spec-table{width:100%;border-collapse:collapse;font-size:15px}
.spec-table thead th{background:var(--brand-soft);color:var(--head);font-size:14px;font-weight:600;text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);white-space:nowrap}
.spec-table td{padding:15px 20px;border-bottom:1px solid var(--divider);color:var(--text);vertical-align:top}
.spec-table tbody tr:nth-child(even){background:#F8FAFD}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table td:first-child{color:var(--head);font-weight:600}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;letter-spacing:.02em}
.badge-blue{background:var(--brand-soft);color:var(--brand)}
.badge-orange{background:var(--spark-soft);color:#C2410C}

/* FAQ */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--head)}
.faq-item summary::-webkit-details-marker{display:none}
.plus{position:relative;flex:0 0 22px;width:22px;height:22px;transition:transform .25s ease}
.plus::before,.plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.plus::before{left:50%;top:3px;bottom:3px;width:2px;transform:translateX(-50%)}
.plus::after{top:50%;left:3px;right:3px;height:2px;transform:translateY(-50%)}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text)}

/* CTA */
.cta-block{background:var(--brand-soft);border-radius:20px;padding:44px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
.cta-block h2{font-size:26px}
.cta-block p{margin-top:12px;font-size:15px;color:var(--text);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);margin-top:16px;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.75;max-width:320px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-contact p{font-size:14px;line-height:1.75;margin-bottom:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap}
.footer-bottom .compliance{color:rgba(255,255,255,.55)}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:100;background:#fff;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .22s ease,transform .22s ease,visibility .22s}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--head);font-size:22px;line-height:1}
.drawer-links{display:flex;flex-direction:column;overflow-y:auto;padding:6px 0}
.drawer-links a{display:flex;align-items:center;height:52px;padding:0 20px;font-size:16px;color:var(--head);border-bottom:1px solid var(--divider)}
.drawer-links a.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.drawer-foot{margin-top:auto;padding:16px 20px 26px;border-top:1px solid var(--line)}
.drawer-foot .btn-primary{width:100%}
body.no-scroll{overflow:hidden}

@media (max-width:1024px){
  .nav-links{display:none}
  .link-muted{display:none}
  .menu-btn{display:inline-flex}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .hero-side{max-width:420px}
  .cat-hero h1{font-size:34px}
  .feature-row{gap:36px}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:36px}
}
@media (max-width:900px){
  .section{padding:60px 0}
  .feature-row{grid-template-columns:minmax(0,1fr);gap:26px;padding:36px 0}
  .feature-row:nth-child(even) .feature-copy,
  .feature-row:nth-child(even) .feature-media{order:0}
  .feature-copy h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container-x{padding:0 20px}
  .cat-hero{padding:34px 0 32px}
  .cat-hero h1{font-size:29px}
  .hero-sub{font-size:16px}
  .sec-head h2{font-size:23px}
  .section{padding:52px 0}
  .spec-table,.spec-table thead,.spec-table tbody,.spec-table tr,.spec-table td,.spec-table th{display:block;width:100%}
  .spec-table thead{display:none}
  .table-wrap{background:transparent;border:0;box-shadow:none;border-radius:0}
  .spec-table tr{background:#fff !important;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:6px 16px;margin-bottom:12px}
  .spec-table td{border-bottom:1px solid var(--divider);padding:11px 0;display:flex;justify-content:space-between;gap:16px}
  .spec-table td:last-child{border-bottom:0}
  .spec-table td::before{content:attr(data-label);flex:0 0 84px;font-size:13px;color:var(--text-2);font-weight:400}
  .spec-table td:first-child{font-weight:600}
  .faq-item summary{padding:16px}
  .faq-a{padding:0 16px 18px}
  .cta-block{padding:28px 22px;border-radius:16px}
  .cta-block h2{font-size:22px}
  .cta-actions > a{flex:1 1 100%}
}
@media (max-width:640px){
  .status-chip{display:none}
  .cd-cell{padding:2px 6px}
  .cd-cell b{font-size:14px}
  .topbar-link{font-size:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px}
  .logo-text strong{font-size:16px}
}

/* roulang page: article */
:root{
  --brand:#1552C6;
  --brand-deep:#0B2A55;
  --brand-soft:#E8EFFB;
  --spark:#FF6B2C;
  --spark-soft:#FFF1E8;
  --page:#F5F7FB;
  --card:#FFFFFF;
  --line:#E3E8F0;
  --text:#475569;
  --muted:#64748B;
  --title:#0B2A55;
  --divider:rgba(11,42,85,.08);
  --ok:#12A67A;
  --warn:#D97706;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(11,42,85,.06), 0 8px 24px rgba(11,42,85,.08);
  --sh-2:0 14px 34px rgba(11,42,85,.13);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.anchor-offset{display:block;position:relative;top:-90px;visibility:hidden;}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--brand-deep);color:rgba(255,255,255,.82);font-size:13px;letter-spacing:.02em;}
.topbar-inner{display:flex;align-items:center;gap:18px;min-height:38px;}
.topbar .status{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border-radius:999px;padding:3px 12px;color:#fff;font-size:12.5px;white-space:nowrap;}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(18,166,122,.22);}
.countdown{display:flex;align-items:center;gap:8px;margin-left:auto;}
.countdown .cd-title{color:rgba(255,255,255,.72);font-size:12.5px;white-space:nowrap;}
.cd-cell{
  min-width:28px;text-align:center;padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.13);color:#fff;font-weight:700;
  font-variant-numeric:tabular-nums;font-size:13px;
}
.cd-unit{font-size:12px;color:rgba(255,255,255,.6);margin-right:2px;}
.topbar-link{color:#fff;font-size:12.5px;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:1px;}
.topbar-link:hover{color:#fff;border-color:#fff;}

/* ============ 导航 ============ */
.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:0 6px 22px rgba(11,42,85,.09);}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .22s ease;}
.site-header.is-scrolled .header-inner{height:62px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:40px;height:40px;border-radius:10px;background:var(--brand);
  display:grid;place-items:center;flex:none;
  box-shadow:0 6px 14px rgba(21,82,198,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.16;}
.logo-text strong{font-size:16px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;}
.logo-text small{font-size:11px;color:var(--muted);letter-spacing:.05em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  border-radius:10px;font-size:15px;font-weight:500;color:var(--text);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a:active{background:#DCE7FA;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-drawer-cta{display:none;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.link-quiet{font-size:14px;color:var(--muted);}
.link-quiet:hover{color:var(--brand);}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  background:var(--spark);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(255,107,44,.24);
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,opacity .18s ease;
}
.btn-primary:hover{background:#F05A18;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,107,44,.3);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,107,44,.22);}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:#fff;color:var(--brand);border:1px solid #C7D8F5;font-size:15px;font-weight:600;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px);color:var(--brand);}
.btn-secondary:active{transform:translateY(0);}
.btn-secondary.is-disabled{opacity:.45;pointer-events:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;place-items:center;margin-left:auto;
}
.menu-toggle:hover{border-color:var(--brand);background:var(--brand-soft);}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);margin:3px auto;}
.nav-backdrop{position:fixed;inset:0;background:rgba(11,42,85,.42);z-index:70;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;}
.nav-backdrop.is-open{opacity:1;visibility:visible;}

/* ============ 文章头部 ============ */
.article-head-band{background:#fff;border-bottom:1px solid var(--line);padding:22px 0 34px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C6D0DE;}
.breadcrumb .current{color:#94A3B8;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{margin-top:18px;max-width:880px;}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;letter-spacing:.02em;line-height:1.5;border-radius:999px;padding:4px 12px;}
.tag-brand{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.tag-soft{background:var(--spark-soft);color:#C2410C;font-weight:600;}
.tag-link{background:#fff;border:1px solid var(--line);color:var(--text);}
.tag-link:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.article-head h1{
  margin:16px 0 0;font-size:clamp(26px,3.2vw,40px);line-height:1.28;font-weight:700;
  color:var(--brand-deep);letter-spacing:-.01em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted);}
.dot-sep{width:4px;height:4px;border-radius:50%;background:#C6D0DE;display:inline-block;}

/* ============ 正文区 ============ */
.article-section{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start;}
.article-main{max-width:820px;}
.article-content{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px 44px;
  font-size:17.5px;line-height:1.9;color:var(--text);
}
.article-content > *:first-child{margin-top:0;}
.article-content > *:last-child{margin-bottom:0;}
.article-content h2{font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-deep);margin:2em 0 .7em;}
.article-content h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--brand-deep);margin:1.7em 0 .6em;}
.article-content h4{font-size:17px;font-weight:600;color:var(--brand-deep);margin:1.4em 0 .5em;}
.article-content p{margin:1.05em 0;}
.article-content ul,.article-content ol{margin:1.05em 0;padding-left:1.5em;}
.article-content ul{list-style:none;padding-left:1.3em;}
.article-content ul li{position:relative;}
.article-content ul li::before{content:"";position:absolute;left:-1.15em;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.article-content ol{list-style:decimal;}
.article-content ol li::marker{color:var(--brand);font-weight:700;}
.article-content li + li{margin-top:.5em;}
.article-content blockquote{
  margin:1.5em 0;padding:16px 22px;border-left:3px solid var(--spark);
  background:var(--brand-soft);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--brand-deep);
}
.article-content blockquote p{margin:.3em 0;}
.article-content img{border-radius:var(--r-md);margin:1.4em auto;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-content a{text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--spark);}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0;}
.article-content th{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;text-align:left;padding:12px 14px;}
.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-content tbody tr:nth-child(even){background:#FAFBFE;}
.article-content code{background:var(--brand-soft);border-radius:6px;padding:2px 6px;font-size:.92em;}
.empty-state{text-align:center;padding:34px 10px;}
.empty-icon{width:56px;height:56px;border-radius:16px;background:var(--brand-soft);display:grid;place-items:center;margin:0 auto 18px;}
.empty-state h2{font-size:22px;color:var(--brand-deep);margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--muted);margin:0 auto 20px;max-width:44ch;}

.article-actions{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:24px;padding:18px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.share-btn{
  height:36px;padding:0 14px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:13px;
  transition:all .18s ease;
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.share-btn:active{transform:translateY(1px);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;}
.tag-row-label{font-size:13px;color:var(--muted);}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px;}
.aside-card h2{font-size:15px;font-weight:700;color:var(--brand-deep);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.aside-card h2::before{content:"";width:18px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--spark),var(--brand));}
.aside-list{list-style:none;margin:0;padding:0;}
.aside-list li + li{border-top:1px solid var(--divider);}
.aside-list a{display:block;padding:11px 0;font-size:14.5px;color:var(--text);line-height:1.6;}
.aside-list a:hover{color:var(--brand);}
.aside-card-cta{background:linear-gradient(160deg,#FFFFFF,var(--brand-soft));}
.aside-card-cta p{font-size:13.5px;color:var(--muted);margin:0 0 14px;line-height:1.7;}
.aside-card-cta .btn-primary{width:100%;}

/* ============ 板块通用 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--brand-deep);line-height:1.3;}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--muted);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;}
.text-link .arrow{transition:transform .18s ease;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ 推荐卡片 ============ */
.related-section{padding:0 0 72px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D2DEEE;}
.news-thumb{position:relative;aspect-ratio:16/9;background:#EDF1F7;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17px;font-weight:600;color:var(--brand-deep);line-height:1.5;}
.news-body p{margin:0;font-size:14px;color:var(--muted);line-height:1.7;}
.news-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--divider);font-size:12.5px;color:#94A3B8;display:flex;justify-content:space-between;gap:12px;}

/* ============ FAQ ============ */
.faq-section{padding:0 0 72px;}
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:6px 28px;}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 0;font-size:17px;font-weight:600;color:var(--brand-deep);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--spark-soft);color:var(--spark);}
.faq-answer{padding:0 56px 20px 0;font-size:15px;line-height:1.85;color:var(--text);}

/* ============ 底部 CTA ============ */
.cta-section{padding:0 0 88px;}
.cta-box{
  background:var(--brand-soft);border-radius:20px;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--brand-deep);margin-bottom:10px;line-height:1.35;}
.cta-box p{margin:0;font-size:15.5px;color:var(--text);max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-brand .logo-text strong{color:#fff;}
.footer-brand .logo-text small{color:rgba(255,255,255,.6);}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 0;max-width:36ch;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact p{font-size:14px;line-height:1.8;margin:0 0 16px;}
.footer-contact .btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  border-radius:10px;border:1px solid rgba(255,255,255,.32);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.footer-contact .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .compliance{max-width:60ch;}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 232px;gap:36px;}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-aside{display:none;}
  .article-main{max-width:100%;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .menu-toggle{display:grid;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:4px;padding:88px 20px 28px;margin:0;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:-14px 0 40px rgba(11,42,85,.18);z-index:80;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{height:48px;padding:0 14px;font-size:16px;border-radius:10px;}
  .nav-links a.active::after{display:none;}
  .nav-links a.active{background:var(--brand-soft);}
  .nav-drawer-cta{display:inline-flex;margin-top:14px;height:46px;}
  .header-actions .link-quiet,.header-actions .btn-primary{display:none;}
  .header-actions{margin-left:0;}
}
@media (max-width:768px){
  .container-x{padding:0 20px;}
  .topbar .status{display:none;}
  .countdown{margin-left:0;}
  .topbar-inner{justify-content:space-between;}
  .topbar .cd-title{display:none;}
  .article-head-band{padding:16px 0 26px;}
  .article-section{padding:36px 0 48px;}
  .article-content{padding:26px 20px;font-size:16.5px;border-radius:14px;line-height:1.85;}
  .article-content h2{font-size:21px;}
  .article-content h3{font-size:18.5px;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .share-row{justify-content:flex-start;}
  .related-section,.faq-section{padding-bottom:52px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .faq-card{padding:4px 18px;}
  .faq-item summary{font-size:16px;padding:16px 0;}
  .faq-answer{padding-right:20px;}
  .cta-section{padding-bottom:60px;}
  .cta-box{padding:32px 22px;gap:22px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .site-footer{padding:48px 0 24px;}
}

/* roulang page: category2 */
:root{
    --brand:#1552C6;
    --brand-deep:#0B2A55;
    --brand-soft:#E8EFFB;
    --spark:#FF6B2C;
    --spark-soft:#FFF1E8;
    --page:#F5F7FB;
    --card:#FFFFFF;
    --line:#E3E8F0;
    --text:#475569;
    --muted:#64748B;
    --title:#0B2A55;
    --ok:#12A67A;
    --warn:#D97706;
    --r-card:16px;
    --r-sm:12px;
    --r-btn:10px;
    --sd:0 1px 2px rgba(11,42,85,.06), 0 8px 24px rgba(11,42,85,.08);
    --sd-hover:0 14px 34px rgba(11,42,85,.13);
    --divider:rgba(11,42,85,.08);
    --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--page);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
  button{font-family:inherit;cursor:pointer;}
  input,select,textarea{font-family:inherit;font-size:15px;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  .num{font-variant-numeric:tabular-nums;font-weight:700;}

  /* ============ 顶部活动条 ============ */
  .topbar{background:var(--brand-deep);color:#fff;}
  .topbar-inner{
    height:40px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .topbar-label{
    font-size:12.5px;letter-spacing:.02em;color:#fff;background:rgba(255,255,255,.14);
    padding:3px 10px;border-radius:999px;white-space:nowrap;
  }
  .topbar-cd{display:flex;align-items:center;gap:10px;min-width:0;}
  .cd-text{font-size:12.5px;color:rgba(255,255,255,.72);white-space:nowrap;}
  .countdown{display:flex;align-items:center;gap:6px;}
  .cd-cell{
    display:flex;align-items:baseline;gap:3px;background:rgba(255,255,255,.1);
    border-radius:8px;padding:2px 7px;
  }
  .cd-cell b{font-size:13px;color:#fff;font-variant-numeric:tabular-nums;line-height:1.4;}
  .cd-cell i{font-style:normal;font-size:11px;color:rgba(255,255,255,.6);}
  .topbar-link{
    font-size:12.5px;color:rgba(255,255,255,.85);border-bottom:1px solid rgba(255,255,255,.35);
    white-space:nowrap;
  }
  .topbar-link:hover{color:#fff;border-bottom-color:#fff;}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease-out,background .25s ease-out;
  }
  .site-header.is-scrolled{box-shadow:0 6px 20px rgba(11,42,85,.08);}
  .header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease-out;}
  .site-header.is-scrolled .header-inner{height:64px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
    box-shadow:0 6px 14px rgba(21,82,198,.28);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.15;}
  .logo-text strong{font-size:17px;color:var(--brand-deep);font-weight:700;letter-spacing:.02em;}
  .logo-text small{font-size:11px;color:var(--muted);letter-spacing:.05em;}

  .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
  .nav-links a{
    position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
    font-size:14.5px;color:var(--text);border-radius:8px;
  }
  .nav-links a::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
  }
  .nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.active{color:var(--brand);font-weight:600;}
  .nav-links a.active::after{transform:scaleX(1);}
  .nav-links a:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
  .link-plain{font-size:14px;color:var(--muted);}
  .link-plain:hover{color:var(--brand);}

  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border:none;border-radius:var(--r-btn);
    background:var(--spark);color:#fff;font-size:15px;font-weight:600;letter-spacing:.02em;
    transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
    box-shadow:0 8px 18px rgba(255,107,44,.24);
  }
  .btn-primary:hover{background:#E85C1E;transform:translateY(-1px);box-shadow:0 12px 24px rgba(255,107,44,.3);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,107,44,.24);}
  .btn-primary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

  .btn-outline{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    background:#fff;color:var(--brand);border:1px solid var(--brand);
    font-size:15px;font-weight:600;transition:background .2s ease-out,transform .2s ease-out;
  }
  .btn-outline:hover{background:var(--brand-soft);transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-outline:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

  .btn-ghost{
    display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:var(--r-btn);
    border:1px solid rgba(255,255,255,.36);color:#fff;font-size:14px;
    transition:background .2s ease-out,border-color .2s ease-out;
  }
  .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);}
  .btn-ghost:focus-visible{outline:2px solid #fff;outline-offset:2px;}

  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);}
  .link-arrow span{transition:transform .2s ease-out;}
  .link-arrow:hover span{transform:translateX(4px);}
  .link-arrow:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

  .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:4px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
  .nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .drawer-cta{display:none;}

  /* ============ 分类 Hero ============ */
  .hero-cat{
    background:linear-gradient(180deg,#FFF6F0 0%,var(--spark-soft) 58%,#FFF9F5 100%);
    border-bottom:1px solid var(--line);
    position:relative;overflow:hidden;
  }
  .hero-cat::before{
    content:"";position:absolute;top:38px;left:0;width:48px;height:3px;
    background:linear-gradient(90deg,var(--spark),var(--brand));border-radius:0 3px 3px 0;
  }
  .hero-cat-inner{
    display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:44px;align-items:center;
    padding:52px 0 46px;min-height:250px;
  }
  .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb em{font-style:normal;color:#94A3B8;}
  .breadcrumb b{font-weight:500;color:var(--brand-deep);}
  .hero-cat h1{
    font-size:40px;line-height:1.25;font-weight:700;color:var(--title);letter-spacing:.01em;
  }
  .hero-cat p.hero-sub{font-size:16.5px;line-height:1.8;color:var(--text);margin-top:16px;max-width:640px;}
  .hero-side{display:flex;flex-direction:column;gap:14px;}
  .hero-thumb{width:100%;height:168px;object-fit:cover;border-radius:14px;border:1px solid var(--line);box-shadow:var(--sd);}
  .status-pill{
    display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:7px 14px;font-size:12.5px;color:var(--brand-deep);box-shadow:var(--sd);
  }
  .status-pill i{width:7px;height:7px;border-radius:50%;background:var(--ok);display:block;}
  .status-pill.spark i{background:var(--spark);}

  /* ============ 通用板块 ============ */
  .section{padding:88px 0;}
  .section.tight{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:36px;}
  .section-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--title);}
  .section-title.small{font-size:24px;}
  .section-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;
    color:var(--brand);font-weight:600;margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--spark);display:block;}

  /* ============ 指南主体布局 ============ */
  .cat-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;align-items:start;}
  .side-nav{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px 12px;box-shadow:var(--sd);}
  .side-nav h2{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600;padding:6px 12px 12px;}
  .side-nav a{
    display:block;padding:11px 14px;font-size:14.5px;color:var(--text);
    border-left:2px solid transparent;border-radius:0 10px 10px 0;
  }
  .side-nav a:hover{background:var(--brand-soft);color:var(--brand);}
  .side-nav a.is-current{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand);font-weight:600;}
  .side-nav a:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .guide-stack{display:flex;flex-direction:column;gap:24px;}
  .guide-card{
    background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
    border-radius:var(--r-card);padding:28px 30px;box-shadow:var(--sd);
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .guide-card:hover{box-shadow:var(--sd-hover);transform:translateY(-4px);}
  .guide-card.accent-spark{border-left-color:var(--spark);}
  .guide-card.accent-soft{border-left-color:#7FA8F0;}
  .guide-card h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--title);}
  .guide-card .guide-tag{
    display:inline-block;font-size:12px;letter-spacing:.04em;color:var(--brand);
    background:var(--brand-soft);border-radius:999px;padding:3px 10px;margin-bottom:12px;
  }
  .guide-card.accent-spark .guide-tag{color:#C2410C;background:var(--spark-soft);}
  .guide-card .guide-desc{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--text);}
  .point-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
  .point-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:var(--muted);}
  .point-list li::before{
    content:"";flex-shrink:0;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-top:9px;
  }
  .guide-card.accent-spark .point-list li::before{background:var(--spark);}
  .guide-note{
    margin-top:20px;padding:14px 16px;background:var(--page);border:1px dashed var(--line);
    border-radius:var(--r-sm);font-size:13.5px;line-height:1.7;color:var(--muted);
  }

  /* ============ 横向对比条 ============ */
  .compare-strip{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sd);
  }
  .compare-item{padding:30px 26px;border-right:1px solid var(--divider);}
  .compare-item:last-child{border-right:none;}
  .compare-item strong{display:block;font-size:17px;color:var(--title);font-weight:700;}
  .compare-item span{display:block;margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);}
  .compare-item .cmp-tag{
    display:inline-block;font-size:12px;color:var(--muted);background:var(--page);
    border-radius:999px;padding:2px 10px;margin-bottom:12px;
  }
  .compare-item.is-feature{background:var(--brand-soft);position:relative;}
  .compare-item.is-feature::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--spark);}
  .compare-item.is-feature .cmp-tag{color:var(--brand);background:#fff;font-weight:600;}

  /* ============ 相关入口网格 ============ */
  .entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .entry-card{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
    padding:18px 20px;font-size:15px;font-weight:600;color:var(--brand-deep);
    transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,color .2s ease-out;
  }
  .entry-card i{font-style:normal;color:var(--brand);transition:transform .2s ease-out;}
  .entry-card:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sd-hover);transform:translateY(-3px);}
  .entry-card:hover i{transform:translateX(4px);}
  .entry-card:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  /* ============ FAQ ============ */
  .faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd);overflow:hidden;}
  .faq-item{border-bottom:1px solid var(--divider);}
  .faq-item:last-child{border-bottom:none;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:none;border:none;text-align:left;padding:22px 28px;
    font-size:17px;font-weight:600;color:var(--title);transition:background .2s ease-out;
  }
  .faq-q:hover{background:var(--page);}
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
  .faq-icon{
    flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--brand-soft);
    color:var(--brand);display:flex;align-items:center;justify-content:center;
    font-size:16px;line-height:1;transition:transform .25s ease-out,background .2s ease-out;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--spark-soft);color:var(--spark);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out;}
  .faq-a p{padding:0 28px 24px;font-size:15px;line-height:1.8;color:var(--muted);}

  /* ============ CTA ============ */
  .cta-block{
    background:var(--brand-soft);border:1px solid #D6E2F8;border-radius:20px;
    padding:56px 48px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  }
  .cta-block h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--title);}
  .cta-block p{margin-top:14px;font-size:15.5px;line-height:1.8;color:var(--text);max-width:620px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);margin-top:0;}
  .footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
    padding:64px 0 40px;
  }
  .footer-brand{display:flex;flex-direction:column;gap:16px;}
  .site-footer .logo-text strong{color:#fff;font-size:18px;}
  .site-footer .logo-text small{color:rgba(255,255,255,.58);}
  .footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;}
  .site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
  .footer-links a:hover{color:#fff;}
  .footer-links a:focus-visible{outline:2px solid #fff;outline-offset:3px;border-radius:4px;}
  .footer-contact p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:18px;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
    border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.56);
  }
  .compliance{color:rgba(255,255,255,.42);}

  /* ============ 响应式 ============ */
  @media (max-width:1080px){
    .cat-layout{grid-template-columns:1fr;gap:32px;}
    .side-nav{position:static;}
    .side-nav .side-links{display:flex;flex-wrap:wrap;gap:8px;}
    .side-nav a{border-left:none;border-radius:999px;background:var(--page);padding:9px 14px;font-size:14px;}
    .side-nav a.is-current{border-left:none;}
    .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:1024px){
    .header-inner{height:64px;gap:16px;}
    .nav-toggle{display:flex;margin-left:auto;}
    .header-actions{display:none;}
    .nav-links{
      position:fixed;inset:0;z-index:80;background:#fff;flex-direction:column;align-items:stretch;
      gap:0;margin:0;padding:86px 20px 110px;overflow-y:auto;
      transform:translateX(102%);visibility:hidden;transition:transform .28s ease-out,visibility .28s ease-out;
    }
    .nav-links a{
      height:48px;padding:0 6px;font-size:16px;border-radius:0;border-bottom:1px solid var(--divider);
    }
    .nav-links a::after{left:6px;right:auto;width:26px;bottom:8px;}
    .nav-links a:hover{background:transparent;}
    .drawer-cta{display:block;margin-top:22px;padding:0;}
    .drawer-cta .btn-primary{width:100%;}
    body.nav-open{overflow:hidden;}
    body.nav-open .nav-links{transform:translateX(0);visibility:visible;}
    body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
    body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
    body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  }
  @media (max-width:900px){
    .hero-cat-inner{grid-template-columns:1fr;gap:26px;padding:40px 0 36px;min-height:0;}
    .hero-cat h1{font-size:30px;}
    .hero-side{flex-direction:row;align-items:center;gap:14px;flex-wrap:wrap;}
    .hero-thumb{width:180px;height:120px;margin-left:auto;}
    .section{padding:64px 0;}
    .section.tight{padding:52px 0;}
    .section-title{font-size:24px;}
    .compare-strip{grid-template-columns:1fr;}
    .compare-item{border-right:none;border-bottom:1px solid var(--divider);}
    .compare-item:last-child{border-bottom:none;}
    .cta-block{grid-template-columns:1fr;padding:40px 28px;}
    .cta-block h2{font-size:23px;}
  }
  @media (max-width:640px){
    .container-x{padding:0 20px;}
    .topbar-label{display:none;}
    .cd-text{display:none;}
    .topbar-inner{gap:10px;}
    .hero-cat::before{top:26px;width:36px;}
    .hero-cat h1{font-size:27px;}
    .hero-cat p.hero-sub{font-size:15.5px;}
    .hero-side{flex-direction:column;align-items:flex-start;}
    .hero-thumb{width:100%;height:150px;margin-left:0;}
    .guide-card{padding:22px 20px;}
    .guide-card h3{font-size:18.5px;}
    .entry-grid{grid-template-columns:1fr;}
    .faq-q{padding:18px 18px;font-size:16px;}
    .faq-a p{padding:0 18px 20px;}
    .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
    .cta-actions .btn-primary,.cta-actions .btn-outline{width:100%;}
  }

/* roulang page: category3 */
:root{
  --brand:#1552C6;
  --brand-deep:#0B2A55;
  --brand-soft:#E8EFFB;
  --spark:#FF6B2C;
  --spark-soft:#FFF1E8;
  --page:#F5F7FB;
  --card:#FFFFFF;
  --line:#E3E8F0;
  --text:#475569;
  --text-2:#64748B;
  --title:#0B2A55;
  --divider:rgba(11,42,85,.08);
  --ok:#12A67A;
  --warn:#D97706;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(11,42,85,.06), 0 8px 24px rgba(11,42,85,.08);
  --shadow-hover:0 14px 34px rgba(11,42,85,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--page);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.3;font-weight:700}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.25}
h2{font-size:clamp(22px,2.6vw,30px)}
h3{font-size:20px;line-height:1.4}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(21,82,198,.15);border-radius:8px}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.numeric{font-variant-numeric:tabular-nums;font-weight:700}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--brand-deep);color:rgba(255,255,255,.82);font-size:13px;letter-spacing:.02em}
.topbar-inner{max-width:1200px;margin:0 auto;padding:0 32px;min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-status{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:3px 12px;white-space:nowrap}
.topbar-status .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(18,166,122,.25)}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.cd-cell{min-width:38px;text-align:center;background:rgba(255,255,255,.12);border-radius:8px;padding:2px 6px;font-weight:700;color:#fff;font-size:14px}
.cd-unit{font-size:12px;color:rgba(255,255,255,.6)}
.topbar-link{color:#fff;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px;white-space:nowrap;transition:opacity .18s}
.topbar-link:hover{opacity:.78}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(11,42,85,.09)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 32px;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;transition:min-height .2s ease}
.site-header.is-scrolled .header-inner{min-height:62px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#1552C6,#2E6FE0);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;box-shadow:0 6px 16px rgba(21,82,198,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-text strong{font-size:18px;font-weight:700;color:var(--title);letter-spacing:.02em}
.logo-text small{font-size:11px;color:var(--text-2);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:#334155;border-radius:8px;transition:color .18s ease,background .18s ease}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:none}
.link-quiet{font-size:14px;color:var(--text-2);transition:color .18s}
.link-quiet:hover{color:var(--brand)}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;transition:border-color .18s,background .18s}
.hamburger:hover{background:var(--brand-soft);border-color:#C7D8F4}
.hamburger span{display:block;width:20px;height:2px;background:var(--title);border-radius:2px}

/* ============ 按钮 / 标签 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--spark);color:#fff;box-shadow:0 8px 20px rgba(255,107,44,.28)}
.btn-primary:hover{background:#F0561A;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,107,44,.24)}
.btn-secondary{background:#fff;color:var(--brand);border-color:#C7D8F4}
.btn-secondary:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-lg{height:52px;padding:0 32px;font-size:17px}
.btn-block{width:100%}
.btn.is-disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover::after{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12.5px;letter-spacing:.02em;font-weight:600;white-space:nowrap}
.badge-blue{background:var(--brand-soft);color:var(--brand)}
.badge-orange{background:var(--spark-soft);color:#C2491A}
.badge-ok{background:rgba(18,166,122,.10);color:var(--ok)}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--text-2);font-weight:500}

/* ============ Hero ============ */
.hero-cat{position:relative;overflow:hidden;background:linear-gradient(120deg,#E8EFFB 0%,#F5F7FB 52%,#FFF1E8 100%);border-bottom:1px solid var(--line)}
.hero-cat::before{content:"";position:absolute;left:0;top:0;width:48px;height:4px;background:linear-gradient(90deg,var(--spark),var(--brand))}
.hero-cat::after{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:rgba(21,82,198,.06)}
.hero-cat-inner{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:34px 32px 40px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:center;min-height:248px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:14px}
.crumb a{color:var(--text-2);transition:color .18s}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#B7C2D4}
.crumb .current{color:#94A3B8}
.hero-cat h1{margin-bottom:14px;letter-spacing:-.01em}
.hero-cat .hero-sub{font-size:17px;color:var(--text);max-width:620px}
.status-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow)}
.status-card .status-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px solid var(--divider)}
.status-card .status-row:last-child{border-bottom:0;padding-bottom:0}
.status-card .status-row span:first-child{color:var(--text-2)}
.status-card .status-row span:last-child{color:var(--title);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);margin-bottom:14px}
.eyebrow::before{content:"";width:40px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--spark),var(--brand))}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8}

/* ============ 主 CTA 区块 ============ */
.cta-block{position:relative;overflow:hidden;background:linear-gradient(135deg,#E8EFFB 0%,#FFFFFF 68%);border:1px solid var(--line);border-radius:20px;padding:42px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:center;box-shadow:var(--shadow)}
.cta-block::before{content:"";position:absolute;left:0;top:0;width:48px;height:4px;background:linear-gradient(90deg,var(--spark),var(--brand))}
.cta-block h2{margin-bottom:14px}
.cta-block .cta-desc{font-size:15.5px;color:var(--text);max-width:560px}
.platform-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cd-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.cd-card .cd-title{font-size:13px;color:var(--text-2);letter-spacing:.02em;margin-bottom:14px}
.cd-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.cd-box{background:var(--brand-soft);border-radius:10px;padding:10px 4px}
.cd-num{display:block;font-size:22px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2}
.cd-label{font-size:11.5px;color:var(--text-2);letter-spacing:.04em}
.cd-note{margin-top:14px;font-size:12.5px;color:var(--text-2);line-height:1.7}

/* ============ 时间线 ============ */
.timeline{max-width:820px}
.tl-item{position:relative;padding:0 0 26px 58px}
.tl-item::before{content:"";position:absolute;left:19px;top:44px;bottom:4px;width:2px;background:linear-gradient(180deg,#C9D9F3,#E9EEF7)}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-dot{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;border:1px solid #D6E2F8}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.tl-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.tl-card h3{font-size:18px;margin-bottom:8px}
.tl-card p{font-size:14.5px;color:var(--text);line-height:1.8}
.tl-card .tl-meta{display:inline-block;margin-top:12px;font-size:12.5px;color:var(--text-2);background:var(--page);border:1px solid var(--line);border-radius:999px;padding:3px 10px}

/* ============ 支持范围 ============ */
.support-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;align-items:center}
.support-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.support-row{display:flex;gap:18px;padding:24px 26px;align-items:flex-start}
.support-row + .support-row{border-top:1px solid var(--divider)}
.support-icon{flex:none;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:15px;border:1px solid #D6E2F8}
.support-row h3{font-size:17px;margin-bottom:6px}
.support-row p{font-size:14px;color:var(--text);line-height:1.75}
.support-figure{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.support-figure img{width:100%;height:280px;object-fit:cover}
.support-figure figcaption{font-size:12.5px;color:var(--text-2);padding:12px 16px;background:#fff;line-height:1.7}

/* ============ FAQ ============ */
.faq{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);max-width:920px}
.faq-item + .faq-item{border-top:1px solid var(--divider)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--title);cursor:pointer;transition:background .18s ease}
.faq-q:hover{background:#FAFBFE}
.faq-icon{flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:17px;line-height:1;transition:transform .25s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text)}

/* ============ 表单 ============ */
.form-wrap{display:grid;grid-template-columns:minmax(0,1fr) 1.1fr;gap:40px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--title);margin-bottom:8px}
.input,.select,.textarea{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;background:#fff;transition:border-color .18s ease,box-shadow .18s ease}
.textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 19px,calc(100% - 15px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,82,198,.15)}
.form-error{display:none;font-size:13px;color:#DC2626;margin-top:6px}
.form-hint{font-size:12px;color:var(--text-2);margin-top:10px;line-height:1.7}
.form-tip{margin-top:14px;font-size:14px;font-weight:600;min-height:20px}
.form-side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.form-side-card h3{font-size:18px;margin-bottom:12px}
.form-side-list{display:flex;flex-direction:column;gap:14px;margin-top:6px}
.form-side-list li{display:flex;gap:12px;font-size:14.5px;color:var(--text);line-height:1.75}
.form-side-list li::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--spark);margin-top:11px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:64px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.site-footer .logo-text strong{color:#fff}
.site-footer .logo-text small{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:16px;max-width:340px;line-height:1.8;color:rgba(255,255,255,.7)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-links a:hover{color:#fff}
.footer-contact p{line-height:1.8;color:rgba(255,255,255,.7)}
.btn-ghost{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:10px;border:1px solid rgba(255,255,255,.35);color:#fff;margin-top:16px;transition:background .18s ease,border-color .18s ease}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.footer-bottom{margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}
.compliance{max-width:620px;line-height:1.7}

/* ============ 抽屉导航 ============ */
.drawer{position:fixed;inset:0;background:#fff;z-index:80;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:18px;line-height:1;color:var(--title);cursor:pointer;transition:background .18s}
.drawer-close:hover{background:var(--brand-soft)}
.drawer-links{display:flex;flex-direction:column;padding:8px 20px;overflow:auto}
.drawer-links a{display:flex;align-items:center;height:48px;font-size:16px;color:#334155;border-bottom:1px solid var(--divider)}
.drawer-links a.active{color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--line)}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .nav-links,.nav-actions .link-quiet{display:none}
  .hamburger{display:flex}
  .hero-cat-inner{grid-template-columns:1fr;gap:24px;min-height:0;padding:28px 32px 34px}
  .cta-block{grid-template-columns:1fr;gap:28px;padding:32px}
  .support-grid{grid-template-columns:1fr;gap:28px}
  .form-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
}
@media(max-width:640px){
  .container-x,.topbar-inner,.header-inner,.hero-cat-inner{padding-left:20px;padding-right:20px}
  body{font-size:15.5px}
  .topbar-status{display:none}
  .topbar-inner{min-height:38px;gap:10px;font-size:12px}
  .cd-cell{min-width:32px;font-size:13px;padding:1px 5px}
  .topbar-link{max-width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .header-inner{min-height:62px;gap:12px}
  .logo-mark{width:36px;height:36px;border-radius:10px;font-size:15px}
  .logo-text strong{font-size:16px}
  .logo-text small{font-size:10px;letter-spacing:.02em}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .section-head{margin-bottom:26px}
  .hero-cat .hero-sub{font-size:15.5px}
  .cta-block{padding:24px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .cd-num{font-size:19px}
  .timeline .tl-item{padding-left:52px}
  .tl-card{padding:18px}
  .faq-q{padding:16px;font-size:16px}
  .faq-a-inner{padding:0 16px 18px}
  .form-card{padding:22px}
  .support-figure img{height:200px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:10px}
}