/* roulang page: index */
:root{
  --brand:#1D5BD6;
  --brand-deep:#123F9C;
  --brand-soft:#E8F0FE;
  --orange:#FF7A1A;
  --orange-soft:#FFF1E6;
  --teal:#12A594;
  --ink:#0E1A2B;
  --ink-2:#2C3E56;
  --muted:#5F7288;
  --line:#E3EAF3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,26,43,.04), 0 12px 28px -12px rgba(29,91,214,.12);
  --sh-2:0 18px 36px -14px rgba(29,91,214,.22);
  --t:.18s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(29,91,214,.35);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;padding:12px 0;
  background:rgba(245,248,252,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t),background-color var(--t);
}
.site-header.is-scrolled{
  box-shadow:0 10px 26px -18px rgba(14,26,43,.45);
  border-bottom-color:var(--line);
  background:rgba(245,248,252,.96);
}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:10px 14px;box-shadow:var(--sh-1);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 10px 22px -12px rgba(29,91,214,.85);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:-.2px;line-height:1.25;white-space:nowrap}
.brand-text small{font-size:12px;color:var(--muted);line-height:1.3;white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;height:42px;padding:0 14px;
  border-radius:var(--r-md);border:1px solid transparent;
  font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.nav-item svg{width:16px;height:16px;flex:0 0 auto}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);border-color:#D6E3FB}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);border-color:#CFE0FA;font-weight:600}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;flex:0 0 auto;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(14,26,43,.45)}
.drawer-panel{
  position:absolute;inset:0;background:var(--bg);padding:20px 20px 120px;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.drawer-item{
  display:flex;align-items:center;gap:10px;min-height:52px;padding:12px 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  font-size:14px;font-weight:600;color:var(--ink-2);
}
.drawer-item.is-active{background:var(--brand-soft);color:var(--brand);border-color:#CFE0FA}
.drawer-foot{
  position:fixed;left:0;right:0;bottom:0;padding:16px 20px 22px;
  background:linear-gradient(180deg,rgba(245,248,252,0),rgba(245,248,252,.96) 40%);
}
.drawer-close{width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;display:grid;place-items:center}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform var(--t),background-color var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
}
.btn svg{width:18px;height:18px}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -16px rgba(29,91,214,.9)}
.btn-primary:hover{background:var(--brand-deep);box-shadow:var(--sh-2)}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover{background:#E96A0C;box-shadow:0 18px 36px -16px rgba(255,122,26,.6)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);border-color:#CFE0FA}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-arrow{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px}
.link-arrow svg{width:16px;height:16px;transition:transform var(--t)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;border-radius:999px;padding:4px 10px;line-height:1.5}
.badge-blue{background:var(--brand-soft);color:var(--brand)}
.badge-orange{background:var(--orange-soft);color:#C25A0C}
.badge-teal{background:#E4F6F3;color:#0B7C6F}
.badge-plain{background:#F1F5FA;color:var(--muted)}
.dot-online{width:8px;height:8px;border-radius:50%;background:var(--teal);display:inline-block;box-shadow:0 0 0 4px rgba(18,165,148,.16)}

/* ---------- Layout helpers ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
h2.section-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.4px;margin:0 0 12px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.8;margin:0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card-hover:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E3FB}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 76px}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(900px 460px at 88% -10%, rgba(29,91,214,.10), transparent 62%),
    radial-gradient(700px 420px at -8% 18%, rgba(18,165,148,.08), transparent 60%),
    linear-gradient(180deg,#FAFCFF 0%, #F5F8FC 70%);
}
.hero-arc{position:absolute;border-radius:50%;border:1px solid rgba(29,91,214,.10);pointer-events:none;z-index:0}
.arc-a{width:860px;height:860px;right:-260px;top:-380px}
.arc-b{width:580px;height:580px;right:-100px;top:-200px;border-color:rgba(255,122,26,.16)}
.arc-c{width:320px;height:320px;left:-160px;bottom:-180px;border-color:rgba(18,165,148,.14)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;gap:52px;align-items:center}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-deep);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.hero h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.6px;color:var(--ink);
  margin:0 0 18px;max-width:20em;
}
.hero-sub{font-size:18px;line-height:1.7;color:var(--ink-2);font-weight:500;margin:0 0 12px}
.hero-note{font-size:15px;line-height:1.85;color:var(--muted);margin:0 0 28px;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;
  color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;
}
.trust-chip svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto}
.trust-chip.is-teal svg{color:var(--teal)}

.hero-visual{position:relative}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  aspect-ratio:16/9;background:#E9F0FB;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,26,43,.05) 0%,rgba(14,26,43,.28) 100%);
}
.hero-panel{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:14px;padding:14px;box-shadow:0 14px 30px -20px rgba(14,26,43,.55);
}
.hero-panel-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:12px}
.hero-panel-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.hero-panel-item{
  display:flex;align-items:flex-start;gap:8px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);padding:10px 12px;min-width:0;
}
.hero-panel-item svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:2px}
.hero-panel-item strong{display:block;font-size:13px;font-weight:600;color:var(--ink);line-height:1.4}
.hero-panel-item em{display:block;font-size:12px;font-style:normal;color:var(--muted);line-height:1.4}

/* ---------- Entry cards ---------- */
.entry-card{display:flex;flex-direction:column;gap:12px;height:100%}
.entry-ico{
  width:44px;height:44px;border-radius:var(--r-md);background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);
}
.entry-ico svg{width:22px;height:22px}
.entry-card h3{font-size:18px;font-weight:600;letter-spacing:-.2px;margin:0}
.entry-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0;flex:1}
.entry-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.entry-more svg{width:16px;height:16px;transition:transform var(--t)}
.entry-card:hover .entry-more svg{transform:translateX(3px)}

/* ---------- Timeline ---------- */
.timeline{display:grid;gap:0;max-width:920px}
.tl-row{position:relative;display:grid;grid-template-columns:96px minmax(0,1fr);gap:20px;padding-bottom:22px}
.tl-row::before{
  content:"";position:absolute;left:47px;top:84px;bottom:-2px;width:1px;background:var(--line);
}
.tl-row:last-child{padding-bottom:0}
.tl-row:last-child::before{display:none}
.tl-badge{
  width:64px;height:64px;border-radius:var(--r-md);background:var(--orange);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:.5px;
  justify-self:center;box-shadow:0 14px 26px -16px rgba(255,122,26,.95);
}
.tl-dot{
  position:absolute;left:43px;top:88px;width:9px;height:9px;border-radius:50%;
  background:var(--brand);border:2px solid #fff;box-shadow:0 0 0 3px rgba(29,91,214,.12);
}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1)}
.tl-card h3{font-size:19px;font-weight:600;letter-spacing:-.2px;margin:0 0 8px}
.tl-card p{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 12px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- People / highlights ---------- */
.person-card{position:relative;overflow:hidden;padding-top:27px;height:100%}
.person-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand)}
.person-avatar{
  width:100%;aspect-ratio:1/1;border-radius:var(--r-md);overflow:hidden;
  background:#EDF2FA;border:1px solid var(--line);margin-bottom:16px;
}
.person-avatar img{width:100%;height:100%;object-fit:cover}
.person-card h3{font-size:17px;font-weight:600;margin:0 0 4px}
.person-role{font-size:13px;color:var(--brand);font-weight:600;margin:0 0 10px}
.person-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}

/* ---------- Plans ---------- */
.plan-card{display:flex;flex-direction:column;height:100%;position:relative}
.plan-card.is-featured{
  border:2px solid var(--brand);transform:scale(1.02);box-shadow:var(--sh-2);z-index:1;
}
.plan-flag{
  position:absolute;top:-13px;left:24px;background:var(--brand);color:#fff;
  font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px;
}
.plan-name{font-size:19px;font-weight:700;margin:0 0 6px}
.plan-desc{font-size:14px;color:var(--muted);margin:0 0 16px}
.plan-price{font-size:15px;color:var(--ink-2);font-weight:600;padding-bottom:16px;border-bottom:1px dashed var(--line);margin-bottom:16px}
.plan-list{display:grid;gap:0;margin-bottom:22px;flex:1}
.plan-list li{display:flex;align-items:center;gap:10px;font-size:15px;line-height:32px;color:var(--ink-2)}
.plan-list li svg{width:17px;height:17px;flex:0 0 auto;color:var(--teal)}
.plan-list li.off{color:#9AAABD}
.plan-list li.off svg{color:#C3D0DF}

/* ---------- Form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field .req{color:var(--orange)}
.input{
  width:100%;height:48px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#FBFCFE;padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
textarea.input{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
select.input{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235F7288' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.input::placeholder{color:#9AAABD}
.input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(29,91,214,.18)}
.input.has-error{border-color:#E4572E;box-shadow:0 0 0 3px rgba(228,87,46,.14)}
.field-hint{display:none;font-size:13px;color:#D24B22;margin-top:6px}
.field.has-error .field-hint{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto}
.check-row span{font-size:13px;line-height:1.7;color:var(--muted)}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);height:100%}
.info-list{display:grid;gap:16px;margin:18px 0 22px}
.info-item{display:flex;gap:12px;align-items:flex-start}
.info-item svg{width:20px;height:20px;color:var(--brand);flex:0 0 auto;margin-top:3px}
.info-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:3px}
.info-item span{font-size:14px;color:var(--muted);line-height:1.7}
.info-divider{height:1px;background:var(--line);margin:0 0 18px}

/* ---------- News / CMS ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E3FB}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#EDF2FA}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-title{
  font-size:17px;font-weight:600;line-height:1.55;letter-spacing:-.2px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-sum{
  font-size:14px;line-height:1.75;color:var(--muted);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line)}
.post-meta time{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.post-meta time svg{width:15px;height:15px}
.empty-state{
  border:1px dashed #C9D8EC;border-radius:var(--r-lg);background:#FBFCFE;
  padding:48px 24px;text-align:center;
}
.empty-state svg{width:36px;height:36px;color:#9FB4D0;margin:0 auto 14px}
.empty-state strong{display:block;font-size:16px;font-weight:600;margin-bottom:6px}
.empty-state p{font-size:14px;color:var(--muted);margin:0 0 16px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{border-color:#CFE0FA;box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-ico{
  width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;transition:transform .28s ease-out,background-color var(--t),color var(--t);
}
.faq-ico svg{width:15px;height:15px}
.faq-item.is-open .faq-ico{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);margin:0}

/* ---------- Closing CTA ---------- */
.closing-cta{
  background:linear-gradient(180deg,#EEF4FE 0%,#E8F0FE 100%);
  border:1px solid #D6E3FB;border-radius:var(--r-lg);padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.closing-cta h2{font-size:24px;font-weight:700;letter-spacing:-.3px;margin:0 0 6px}
.closing-cta p{font-size:15px;color:#3E5B85;margin:0}

/* ---------- Footer ---------- */
.site-footer{background:#0E1A2B;color:#C6D3E4;margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-mark{width:40px;height:40px;border-radius:12px;background:var(--brand);display:grid;place-items:center;color:#fff;flex:0 0 auto}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700;letter-spacing:-.2px}
.footer-desc{font-size:14px;line-height:1.85;color:#93A6BE;margin:0 0 16px;max-width:34em}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#9FE6DC}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.2px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:#C6D3E4;transition:color var(--t)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:14px;line-height:1.85;color:#93A6BE;margin:0 0 10px}
.footer-bottom{
  border-top:1px solid rgba(227,234,243,.14);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#7E90A8;margin:0}
.footer-bottom span{font-size:13px;color:#7E90A8}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav-item{padding:0 11px;font-size:13px}
}
@media (max-width:1023px){
  .nav-list{display:none}
  .nav-cta .btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-card{justify-content:space-between}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero h1{font-size:34px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero{padding:36px 0 56px}
  .hero h1{font-size:28px;line-height:1.38;letter-spacing:-.3px;max-width:none}
  .hero-sub{font-size:16px}
  .hero-note{font-size:15px}
  .hero-panel{position:static;left:auto;right:auto;bottom:auto;margin-top:14px}
  .hero-panel-list{grid-template-columns:minmax(0,1fr);gap:8px}
  h2.section-title{font-size:24px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .tl-row{grid-template-columns:58px minmax(0,1fr);gap:14px}
  .tl-badge{width:48px;height:48px;font-size:15px;border-radius:10px;justify-self:start}
  .tl-row::before{left:24px;top:64px}
  .tl-dot{display:none}
  .tl-card{padding:18px}
  .closing-cta{padding:26px 22px}
  .plan-card.is-featured{transform:none}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{margin-top:64px;padding-top:52px}
}
@media (max-width:639px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .btn{width:100%}
  .btn.btn-inline{width:auto}
  .closing-cta .btn{width:100%}
  .form-card,.info-card{padding:20px}
}
@media (max-width:400px){
  .brand-text small{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand:#1D5BD6;
  --brand-dark:#123F9C;
  --brand-light:#E8F0FE;
  --accent:#FF7A1A;
  --accent-light:#FFF1E6;
  --online:#12A594;
  --text:#0E1A2B;
  --text-2:#2C3E56;
  --text-3:#5F7288;
  --border:#E3EAF3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(14,26,43,.04),0 12px 28px -12px rgba(29,91,214,.12);
  --shadow-2:0 18px 36px -14px rgba(29,91,214,.22);
  --ease:180ms ease-out;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body img{max-width:100%;display:block}
body a{color:inherit;text-decoration:none}
body ul{margin:0;padding:0;list-style:none}
body h1,body h2,body h3,body h4,body p{margin:0}
body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
body figure{margin:0}
body input,body select,body textarea{font:inherit}
::selection{background:var(--brand-light);color:var(--brand-dark)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 排版层级 ---------- */
.h1{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.5px;color:var(--text)}
.h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.4px;color:var(--text)}
.h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--text)}
.lead{font-size:17px;line-height:1.85;color:var(--text-2)}
.section-sub{font-size:16px;line-height:1.8;color:var(--text-3)}
.card-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--text)}
.card-desc{font-size:15px;line-height:1.7;color:var(--text-3)}
.num{font-variant-numeric:tabular-nums}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;line-height:1.6;font-weight:600;
}
.badge-accent{background:var(--accent-light);color:#C2570B}
.badge-online{background:rgba(18,165,148,.12);color:#0C7F72}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.1;
  white-space:nowrap;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn svg{width:18px;height:18px;flex-shrink:0}
.btn-sm{padding:9px 14px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(29,91,214,.9)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 18px 30px -16px rgba(18,63,156,.75)}
.btn-primary:active{transform:scale(.98)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#E86A10;transform:translateY(-2px)}
.btn-accent:active{transform:scale(.98)}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);border-color:#CFE0FB}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,91,214,.25)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow svg{width:16px;height:16px}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 站点头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,248,252,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  box-shadow:0 12px 26px -20px rgba(14,26,43,.4);
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  margin:12px 0;padding:10px 12px;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:grid;place-items:center;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.2px}
.brand-text small{font-size:11px;color:var(--text-3);white-space:nowrap}

.nav-list{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:flex;align-items:center;gap:6px;
  padding:9px 12px;border-radius:var(--radius-md);
  border:1px solid var(--border);
  font-size:14px;color:var(--text-2);
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.nav-item svg{width:16px;height:16px;flex-shrink:0}
.nav-item:hover{background:#F8FBFF;border-color:#CDE0FA;color:var(--brand);transform:translateY(-1px)}
.nav-item.is-active{background:var(--brand-light);border-color:#CFE0FB;color:var(--brand-dark);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}

.nav-toggle{
  display:none;width:44px;height:44px;flex-shrink:0;
  border:1px solid var(--border);border-radius:var(--radius-md);
  background:#fff;align-items:center;justify-content:center;
  transition:background-color var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--brand-light);border-color:#CFE0FB}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:80;display:none}
.nav-drawer.is-open{display:block}
.drawer-backdrop{position:absolute;inset:0;background:rgba(14,26,43,.45)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(380px,88vw);background:#fff;
  padding:20px;overflow-y:auto;
  display:flex;flex-direction:column;gap:14px;
  border-radius:20px 0 0 20px;
  box-shadow:-18px 0 40px -22px rgba(14,26,43,.45);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-title{font-size:15px;font-weight:700;color:var(--text)}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-md);
  border:1px solid var(--border);background:#fff;
  display:grid;place-items:center;
}
.drawer-close svg{width:18px;height:18px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-item{
  min-height:48px;display:flex;align-items:center;gap:8px;
  padding:12px;border:1px solid var(--border);border-radius:var(--radius-md);
  font-size:14px;color:var(--text-2);background:#fff;
}
.drawer-item svg{width:18px;height:18px;flex-shrink:0}
.drawer-item.is-active{background:var(--brand-light);border-color:#CFE0FB;color:var(--brand-dark);font-weight:600}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer-foot .btn{width:100%}

/* ---------- 面包屑与页头 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B9C6D6}
.breadcrumb .current{color:var(--text-2);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.page-head{padding:34px 0 0}
.page-head-inner{max-width:860px;margin-top:18px}
.page-head .h1{margin:14px 0 16px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.head-media{
  margin-top:34px;aspect-ratio:3/1;border-radius:var(--radius-lg);
  overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-1);
  background:var(--brand-light);
}
.head-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 板块 ---------- */
.section{padding:80px 0}
.section-alt{background:linear-gradient(180deg,#FFFFFF 0%,#F7FAFF 100%)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .h2{margin:14px 0 12px}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split + .split{margin-top:64px}
.split-text .h3{margin-bottom:10px}
.split-list{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.split-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:var(--text-2)}
.split-list svg{width:20px;height:20px;flex-shrink:0;margin-top:3px;color:var(--online)}
.split-media{
  aspect-ratio:16/9;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-1);background:var(--brand-light);
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-reverse .split-text{order:2}
.split-reverse .split-media{order:1}

/* ---------- 四宫格要点卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE0FB}
.feature-icon{
  width:44px;height:44px;border-radius:var(--radius-md);
  background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;
}
.feature-icon svg{width:22px;height:22px}
.feature-card .card-desc{margin-top:auto}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item.is-open{box-shadow:var(--shadow-1);border-color:#CFE0FB}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:background-color var(--ease);
}
.faq-q:hover{background:#F8FBFF}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(29,91,214,.22)}
.faq-sign{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform var(--ease)}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:14px;height:2px}
.faq-sign::after{width:2px;height:14px;transition:opacity var(--ease)}
.faq-item.is-open .faq-sign{transform:rotate(180deg)}
.faq-item.is-open .faq-sign::after{opacity:0}
.faq-panel{display:none;padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq-item.is-open .faq-panel{display:block}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:linear-gradient(135deg,#E8F0FE 0%,#F5F8FC 100%);
  border:1px solid #D8E6FA;border-radius:20px;
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar .h3{margin-bottom:8px}
.cta-note{font-size:14px;color:var(--text-3)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#C6D3E4;margin-top:96px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  display:grid;place-items:center;color:#fff;
}
.footer-brand strong{font-size:15px;font-weight:700;letter-spacing:-.2px}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB2CB;max-width:340px}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:#8FE3D8}
.dot-online{
  width:8px;height:8px;border-radius:50%;background:var(--online);
  box-shadow:0 0 0 4px rgba(18,165,148,.18);flex-shrink:0;
}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C6D3E4;transition:color var(--ease)}
.footer-links a:hover{color:#fff}
.footer-note{font-size:13px;line-height:1.8;color:#9FB2CB;margin-bottom:6px}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3BE;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-list,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-card{gap:10px}
  .brand-text small{display:none}
  .h1{font-size:28px;line-height:1.35}
  .h2{font-size:24px;line-height:1.4}
  .h3{font-size:18px}
  .lead{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .head-media{aspect-ratio:2/1;margin-top:26px}
  .split{grid-template-columns:1fr}
  .split + .split{margin-top:48px}
  .split-reverse .split-text{order:1}
  .split-reverse .split-media{order:2}
  .feature-grid{grid-template-columns:1fr}
  .cta-bar{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding:48px 0 24px}
}
@media (max-width:520px){
  .drawer-grid{grid-template-columns:1fr}
  .head-actions .btn{flex:1}
  .breadcrumb .current{white-space:normal}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --primary:#1D5BD6;
  --primary-deep:#123F9C;
  --primary-soft:#E8F0FE;
  --accent:#FF7A1A;
  --accent-soft:#FFF1E6;
  --online:#12A594;
  --text:#0E1A2B;
  --text-2:#2C3E56;
  --text-3:#5F7288;
  --line:#E3EAF3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --r-lg:16px;
  --r-sm:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(14,26,43,.04),0 12px 28px -12px rgba(29,91,214,.12);
  --shadow-2:0 18px 36px -14px rgba(29,91,214,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(29,91,214,.25);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,248,252,.8);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.site-header.is-scrolled{
  background:rgba(245,248,252,.94);
  box-shadow:0 10px 26px -18px rgba(14,26,43,.42);
  border-bottom-color:var(--line);
}
.site-header .container{padding-top:12px;padding-bottom:12px}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 10px 20px -12px rgba(29,91,214,.85);
}
.brand-text strong{display:block;font-size:15px;font-weight:700;letter-spacing:-.2px;line-height:1.3}
.brand-text small{display:block;font-size:12px;color:var(--text-3);line-height:1.4}
.nav-list{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:flex;align-items:center;gap:6px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  font-size:14px;color:var(--text-2);
  transition:transform .18s ease-out,border-color .18s ease-out,background .18s ease-out,color .18s ease-out;
}
.nav-item svg{width:16px;height:16px;flex-shrink:0}
.nav-item:hover{border-color:#C9D9F3;color:var(--primary);transform:translateY(-1px)}
.nav-item.is-active{background:var(--primary-soft);border-color:#C9D9F3;color:var(--primary-deep);font-weight:600}
.nav-cta{margin-left:6px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px -16px rgba(29,91,214,.95)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(29,91,214,.8)}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line)}
.btn-secondary:hover{background:var(--primary-soft);border-color:#C9D9F3;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease-out}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- article head ---------- */
.article-head{padding:28px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:16px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-3);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#B8C6D8}
.breadcrumb .current{
  color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-banner{
  margin-top:24px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow-1);
}
.article-banner img{width:100%;aspect-ratio:16/5;object-fit:cover}
.article-title-block{margin-top:28px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:13px;line-height:1.5;
  background:var(--primary-soft);color:var(--primary-deep);
}
.badge.badge-online{background:rgba(18,165,148,.1);color:var(--online)}
.article-title-block h1{
  margin-top:14px;font-size:36px;line-height:1.35;font-weight:700;letter-spacing:-.5px;color:var(--text);
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:18px;padding-bottom:20px;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item svg{width:16px;height:16px;color:#9AAEC6}
.article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:#C9D6E5}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;
  padding:40px 0 8px;
}
.article-main{min-width:0;max-width:820px;margin:0 auto;width:100%}
.article-body{font-size:18px;line-height:1.9;color:var(--text-2)}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;margin:2.1em 0 .9em;padding-left:14px;
  font-size:24px;line-height:1.5;font-weight:700;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.25em;bottom:.25em;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{margin:1.7em 0 .7em;font-size:20px;line-height:1.5;font-weight:600;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0;line-height:1.85}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--primary-soft);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(29,91,214,.32);transition:border-color .18s ease-out,color .18s ease-out}
.article-body a:hover{color:var(--primary-deep);border-bottom-color:var(--primary-deep)}
.article-body table{
  display:block;width:100%;overflow-x:auto;margin:1.6em 0;
  border:1px solid var(--line);border-radius:12px;border-collapse:collapse;font-size:15px;
}
.article-body th{background:var(--primary-soft);color:var(--text);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  padding:2px 6px;border-radius:6px;background:#F1F5FB;color:var(--primary-deep);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;
}

/* ---------- toc ---------- */
.article-aside{display:none}
.toc-card{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:20px;
}
.toc-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.2px;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:14px;line-height:1.55;color:var(--text-3);
  border-left:2px solid transparent;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary-deep)}
.toc-list li.toc-sub a{padding-left:22px;font-size:13px}
.toc-list a.is-current{background:var(--primary-soft);color:var(--primary-deep);border-left-color:var(--primary);font-weight:600}

/* ---------- empty ---------- */
.empty-state{
  background:#fff;border:1px dashed #CFDCEC;border-radius:var(--r-lg);
  padding:56px 28px;text-align:center;
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--text)}
.empty-state p{margin:10px auto 22px;max-width:420px;font-size:15px;color:var(--text-3)}

/* ---------- footer of article ---------- */
.article-foot{margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-row .tag-label{font-size:14px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--accent-soft);color:#C4560B;font-size:13px;border:1px solid #FFE0C7;
}
.article-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:22px}
.share-note{font-size:13px;color:var(--online);min-height:20px}

/* ---------- related ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.4px}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-3);max-width:640px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6E2F5}
.related-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EAF1FB}
.related-body{padding:20px;display:flex;flex-direction:column;flex:1}
.related-body h3{font-size:17px;line-height:1.55;font-weight:600;color:var(--text);margin:10px 0 8px}
.related-body p{font-size:14px;line-height:1.7;color:var(--text-3);margin-bottom:16px}
.related-body .link-arrow{margin-top:auto}
.related-card--link{
  justify-content:center;align-items:flex-start;padding:26px;gap:10px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F8FBFF 100%);
}
.related-card--link h3{font-size:17px;font-weight:600;color:var(--text)}
.related-card--link p{font-size:14px;color:var(--text-3);line-height:1.7}

/* ---------- cta strip ---------- */
.cta-strip{padding:0 0 72px}
.cta-strip-card{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--primary-soft);border:1px solid #D4E2FA;border-radius:var(--r-lg);
  padding:32px 34px;
}
.cta-strip-card h2{font-size:24px;line-height:1.45;font-weight:700;color:var(--primary-deep)}
.cta-strip-card p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:620px}

/* ---------- footer ---------- */
.site-footer{background:#0E1A2B;color:#C6D3E4;padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-mark{
  width:36px;height:36px;border-radius:12px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.footer-brand strong{font-size:15px;color:#fff;font-weight:700}
.footer-desc{font-size:14px;line-height:1.8;color:#93A6BF;max-width:330px}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:#8FA3BC}
.dot-online{width:8px;height:8px;border-radius:50%;background:#12A594;box-shadow:0 0 0 4px rgba(18,165,148,.18)}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C6D3E4;transition:color .18s ease-out}
.footer-links a:hover{color:#fff}
.footer-note{font-size:14px;line-height:1.8;color:#93A6BF;margin-bottom:8px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(198,211,228,.16);
  font-size:13px;color:#8FA3BC;
}

/* ---------- responsive ---------- */
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,820px) 240px;justify-content:center;gap:56px}
  .article-main{max-width:none;margin:0}
  .article-aside{display:block}
}
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .site-header .container{padding-top:10px;padding-bottom:10px}
  .brand-text small{display:none}
  .nav-card{padding:8px 10px}
  .nav-toggle{display:flex}
  .nav-list{
    position:fixed;left:0;right:0;top:0;bottom:0;
    display:none;grid-template-columns:1fr 1fr;gap:12px;align-content:start;
    margin:0;padding:92px 20px 120px;background:#fff;z-index:70;overflow-y:auto;
  }
  body.nav-open .nav-list{display:grid}
  .nav-list li{list-style:none}
  .nav-item{
    height:auto;min-height:48px;width:100%;justify-content:flex-start;
    padding:12px;font-size:14px;line-height:1.4;
  }
  .nav-cta{display:none}
  body.nav-open .nav-cta{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:71;
    padding:14px 20px;background:#fff;border-top:1px solid var(--line);
  }
  body.nav-open .nav-cta .btn{width:100%}
  body.nav-open{overflow:hidden}
  .article-title-block h1{font-size:27px;line-height:1.4}
  .article-body{font-size:17px;line-height:1.85}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .cta-strip-card{padding:24px}
  .cta-strip-card h2{font-size:20px}
  .cta-strip-card .btn{width:100%}
}
@media (max-width:767px){
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-banner img{aspect-ratio:16/9}
  .breadcrumb{font-size:14px}
  .breadcrumb .current{max-width:200px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --primary:#1D5BD6;
  --primary-deep:#123F9C;
  --primary-light:#E8F0FE;
  --accent:#FF7A1A;
  --accent-light:#FFF1E6;
  --teal:#12A594;
  --ink:#0E1A2B;
  --ink-2:#2C3E56;
  --muted:#5F7288;
  --border:#E3EAF3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(14,26,43,.04),0 12px 28px -12px rgba(29,91,214,.12);
  --shadow-hover:0 18px 36px -14px rgba(29,91,214,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(29,91,214,.28);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,248,252,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding:12px 0;
  border-bottom:1px solid transparent;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px -12px rgba(14,26,43,.22);
  border-bottom-color:var(--border);
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:12px 16px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:inherit}
.brand:hover{text-decoration:none}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:13px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(29,91,214,.75);
}
.brand-text strong{display:block;font-size:15px;font-weight:700;letter-spacing:-.2px;color:var(--ink);line-height:1.35}
.brand-text small{display:block;font-size:11.5px;color:var(--muted);line-height:1.4;margin-top:2px}
.nav-list{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--radius-md);
  border:1px solid var(--border);
  font-size:14px;color:var(--ink-2);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-item svg{width:16px;height:16px;flex:none}
.nav-item:hover{background:var(--bg);border-color:#cfdcee;color:var(--primary-deep);text-decoration:none}
.nav-item.is-active{background:var(--primary-light);border-color:#c9dbfa;color:var(--primary);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:14px;flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;flex:none;margin-left:auto;
  align-items:center;justify-content:center;
  border-radius:var(--radius-md);border:1px solid var(--border);
  background:#fff;color:var(--ink-2);cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.1;
  padding:13px 22px;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff}
.btn-primary:active{transform:scale(.98)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(255,122,26,.85)}
.btn-accent:hover{background:#e96a0c;color:#fff}
.btn-accent:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border)}
.btn-ghost:hover{background:var(--primary-light);border-color:#c9dbfa;color:var(--primary-deep)}
.btn-sm{padding:10px 15px;font-size:14px}
.btn-block{width:100%}
.link-plain{color:var(--primary);font-size:14.5px;font-weight:600}
.link-plain:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--bg);padding:20px;
  display:flex;flex-direction:column;gap:20px;overflow-y:auto;
}
.nav-drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;gap:10px}
.drawer-head strong{font-size:15px;color:var(--ink)}
.drawer-close{
  margin-left:auto;width:42px;height:42px;border-radius:var(--radius-md);
  border:1px solid var(--border);background:#fff;color:var(--ink-2);
  font-size:22px;line-height:1;cursor:pointer;
}
.drawer-label{font-size:13px;color:var(--muted);font-weight:600}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-item{
  min-height:52px;display:flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  font-size:14.5px;color:var(--ink-2);padding:10px;
}
.drawer-item:hover{text-decoration:none;border-color:#cfdcee}
.drawer-item.is-active{background:var(--primary-light);border-color:#c9dbfa;color:var(--primary);font-weight:600}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:16px}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--muted);line-height:1.75}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-light);color:var(--primary-deep);
  border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;
  margin-bottom:16px;
}

/* ---------- 首屏 ---------- */
.page-hero{padding:36px 0 0}
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--primary)}
.breadcrumbs .sep{color:#c3d0e2}
.breadcrumbs .current{color:var(--ink-2);font-weight:500}
.page-hero h1{font-size:40px;line-height:1.22;letter-spacing:-.5px;max-width:22ch;margin-bottom:18px}
.lede{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:64ch}
.hero-banner{
  margin:32px 0 0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  aspect-ratio:3/1;background:#dce7f7;
}
.hero-banner img{width:100%;height:100%;object-fit:cover}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:20px}
.stat-card{
  background:var(--ink);border-radius:var(--radius-lg);
  padding:28px 26px;color:#C6D3E4;position:relative;overflow:hidden;
  border:1px solid #1b2c44;
}
.stat-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;
  border-radius:50%;background:rgba(29,91,214,.28);filter:blur(2px);
}
.stat-num{
  font-size:38px;font-weight:700;line-height:1.05;color:#fff;
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px;
}
.stat-num span{font-size:15px;font-weight:500;color:#8FB2F0}
.stat-label{margin-top:14px;font-size:14.5px;line-height:1.7;color:#C6D3E4;position:relative;z-index:1}

/* ---------- 横向列表卡 ---------- */
.list-stack{display:flex;flex-direction:column;gap:16px}
.list-row{
  display:flex;align-items:center;gap:20px;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:22px 24px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.list-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cfdcee}
.list-index{
  width:46px;height:46px;flex:none;border-radius:var(--radius-md);
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
}
.list-body{flex:1;min-width:0}
.list-body h3{font-size:18px;line-height:1.45;margin-bottom:6px}
.list-body p{font-size:14.5px;color:var(--muted);line-height:1.7}
.list-arrow{
  width:38px;height:38px;flex:none;border-radius:var(--radius-sm);
  border:1px solid var(--border);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  transition:background .18s ease,border-color .18s ease;
}
.list-row:hover .list-arrow{background:var(--primary-light);border-color:#c9dbfa}
.list-arrow svg{width:18px;height:18px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-icon{width:26px;height:26px;flex:none;margin-left:auto;border-radius:8px;background:var(--primary-light);position:relative}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform .2s ease,opacity .2s ease}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- 表单 CTA ---------- */
.form-grid{display:grid;grid-template-columns:1.3fr .85fr;gap:24px;align-items:start}
.form-card,.info-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px;
}
.form-card h3,.info-card h3{font-size:20px;line-height:1.4;margin-bottom:8px}
.form-card > p,.info-card > p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.6}
.input,select,textarea{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
textarea{height:auto;min-height:100px;padding:12px 14px;line-height:1.7;resize:vertical}
.input::placeholder,textarea::placeholder{color:#9aabbf}
.input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,91,214,.18);
}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);line-height:1.7;margin:6px 0 20px}
.checkbox-row input{width:17px;height:17px;flex:none;margin-top:3px;accent-color:var(--primary)}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--border)}
.info-item:last-child{border-bottom:0;padding-bottom:0}
.info-ico{
  width:38px;height:38px;flex:none;border-radius:var(--radius-sm);
  background:var(--accent-light);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
}
.info-ico svg{width:18px;height:18px}
.info-item h4{font-size:15px;line-height:1.5;margin-bottom:4px}
.info-item p{font-size:13.5px;color:var(--muted);line-height:1.7}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(18,165,148,.1);color:#0d8276;
  border-radius:999px;padding:5px 13px;font-size:13px;font-weight:600;margin-bottom:18px;
}
.dot-online{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(18,165,148,.16);display:inline-block}

/* ---------- 收口 CTA ---------- */
.closing-card{
  background:var(--primary-light);border:1px solid #c9dbfa;border-radius:var(--radius-lg);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.closing-card h2{font-size:24px;line-height:1.4;margin-bottom:8px}
.closing-card p{font-size:15px;color:var(--ink-2);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#C6D3E4;margin-top:72px;padding:60px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
}
.footer-brand strong{font-size:15px;color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:#93a5be;margin-bottom:14px}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#7fd8cd}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C6D3E4;transition:color .18s ease}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-note{font-size:13.5px;color:#93a5be;line-height:1.8;margin-bottom:8px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(198,211,228,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom span{font-size:13px;color:#8b9db6}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-hero h1{font-size:34px}
  .section{padding:60px 0}
  .section-head h2{font-size:26px}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-list,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .brand-text small{display:none}
  .page-hero{padding:24px 0 0}
  .page-hero h1{font-size:28px;line-height:1.3;max-width:none}
  .lede{font-size:15.5px}
  .hero-banner{aspect-ratio:16/9;margin-top:24px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
  .section-head{margin-bottom:26px}
  .section-head h2{font-size:23px}
  .stat-num{font-size:32px}
  .list-row{gap:14px;padding:18px}
  .list-index{width:40px;height:40px;font-size:15px}
  .list-body h3{font-size:16.5px}
  .list-body p{font-size:13.5px}
  .list-arrow{display:none}
  .form-card,.info-card{padding:22px}
  .closing-card{padding:24px}
  .closing-card h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:44px 0 24px;margin-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .page-hero h1{font-size:25px}
  .stat-card{padding:22px 20px}
  .btn{width:100%}
  .btn.btn-inline{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}