/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#F4F7F9;
  --surface:#FFFFFF;
  --brand:#1B6E9C;
  --brand-strong:#124E70;
  --ink:#0F344C;
  --ink-2:#29455A;
  --muted:#6C7F8E;
  --line:#E3EAF0;
  --accent:#128C8C;
  --warm:#DE9A3F;
  --sh-1:0 1px 2px rgba(15,52,76,.05),0 6px 18px -10px rgba(15,52,76,.18);
  --sh-2:0 2px 4px rgba(15,52,76,.06),0 18px 36px -18px rgba(15,52,76,.28);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-2);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
input,textarea,button{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(27,110,156,.16)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;box-shadow:0 4px 12px -6px rgba(27,110,156,.7)}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:0;line-height:1}
.nav-links{display:flex;align-items:center;gap:30px;flex:1;justify-content:center}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .18s ease-out}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease-out}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}

/* mega */
.mega{position:relative;padding-bottom:14px;margin-bottom:-14px}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;background:transparent;border:0;cursor:pointer;padding:8px 4px;font-size:14.5px;font-weight:500;color:var(--ink-2);transition:color .18s}
.mega-trigger:hover{color:var(--brand)}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.mega:hover .caret,.mega:focus-within .caret{transform:rotate(225deg) translateY(-2px)}
.mega-panel{
  position:absolute;top:100%;right:0;width:560px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--sh-2);padding:20px;display:grid;grid-template-columns:1.1fr .9fr;gap:18px;
  opacity:0;visibility:hidden;transform:translateY(-8px);pointer-events:none;transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-col-title{font-size:12px;letter-spacing:.04em;color:var(--muted);font-weight:600;margin-bottom:10px}
.mega-item{display:block;padding:10px 12px;border-radius:10px;transition:background .16s,color .16s}
.mega-item:hover,.mega-item:focus-visible{background:#F2F7FB}
.mega-item strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.5}
.mega-item span{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px}
.mega-card{background:linear-gradient(150deg,#F2F7FB,#EAF4F6);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;justify-content:space-between;gap:14px}
.mega-card h4{font-size:14.5px;font-weight:700;color:var(--ink)}
.mega-card p{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:6px}
.mega-card .arrow{font-size:13px;font-weight:600;color:var(--brand)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:10px;font-size:15px;font-weight:600;line-height:1.3;border:1.5px solid transparent;cursor:pointer;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FB}
.btn-ghost:focus-visible{outline:3px solid rgba(27,110,156,.24);outline-offset:2px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more span{transition:transform .18s ease-out}
.link-more:hover span{transform:translateX(3px)}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}

/* nav toggle */
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s ease-out,opacity .18s}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(15,52,76,.35);opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:95;box-shadow:var(--sh-2);transform:translateX(102%);transition:transform .26s ease-out;padding:88px 24px 32px;overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.drawer-group{margin-bottom:22px}
.drawer-label{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em;margin-bottom:8px}
.drawer-link{display:block;font-size:18px;font-weight:600;color:var(--ink);padding:11px 0;border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--brand)}
.drawer-sub{display:block;font-size:14px;color:var(--ink-2);padding:9px 0 9px 14px;border-bottom:1px solid var(--line)}

/* ---------- hero ---------- */
.hero{padding:76px 0 88px}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(27,110,156,.08);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:20px}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-title{font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;letter-spacing:-.5px;color:var(--ink);margin:0 0 18px}
.hero-sub{font-size:17px;line-height:1.78;color:var(--muted);max-width:520px;margin:0 0 12px}
.hero-desc{font-size:15px;line-height:1.85;color:var(--muted);max-width:540px;margin:0 0 28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.hero-trust em{font-style:normal;color:var(--line)}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:5/4;background:#E8EFF4;border:1px solid var(--line)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.5),rgba(244,247,249,.12));pointer-events:none}
.hero-float{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:12px;padding:12px 16px;box-shadow:var(--sh-1);backdrop-filter:blur(6px)}
.hero-float b{display:block;font-size:20px;font-weight:700;color:var(--brand-strong);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-float span{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section-tight{padding-top:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.section-desc{font-size:15px;line-height:1.8;color:var(--muted);max-width:660px;margin-top:10px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;color:var(--accent);letter-spacing:.04em;margin-bottom:10px}

/* ---------- metrics ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.metric-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px 24px 22px;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.metric-card::before{content:"";position:absolute;top:0;left:24px;width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--brand)}
.metric-card:nth-child(3)::before{background:var(--accent)}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0EA}
.metric-index{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(27,110,156,.08);color:var(--brand);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px}
.metric-num{font-size:44px;font-weight:700;line-height:1.08;color:var(--brand-strong);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.metric-unit{font-size:16px;font-weight:600;color:var(--muted);margin-left:5px;letter-spacing:0}
.metric-name{font-size:14px;font-weight:600;color:var(--ink-2);margin-top:14px}
.metric-note{display:flex;align-items:flex-start;gap:7px;font-size:12.5px;line-height:1.65;color:var(--muted);margin-top:8px}
.metric-note i{width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none;margin-top:8px}

/* ---------- service matrix ---------- */
.service-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:repeat(3,minmax(0,auto));gap:24px}
.svc-feature{grid-row:1 / span 3;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.svc-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0EA}
.svc-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8EFF4}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.svc-feature:hover .svc-media img{transform:scale(1.03)}
.svc-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.svc-no{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.svc-title{font-size:20px;font-weight:700;color:var(--ink);line-height:1.45;margin-top:8px}
.svc-text{font-size:14.5px;line-height:1.8;color:var(--muted);margin-top:10px}
.svc-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:auto;padding-top:18px}
.svc-link span{transition:transform .18s ease-out}
.svc-feature:hover .svc-link span{transform:translateX(3px)}
.svc-card{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 24px;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0EA}
.svc-icon{width:44px;height:44px;border-radius:12px;background:rgba(27,110,156,.08);display:grid;place-items:center;color:var(--brand);flex:none}
.svc-card h3{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5}
.svc-card p{font-size:13.5px;line-height:1.75;color:var(--muted);margin-top:6px}
.cap-band{display:flex;align-items:center;flex-wrap:wrap;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 24px;margin-top:24px;box-shadow:var(--sh-1)}
.cap-band strong{font-size:13px;font-weight:600;color:var(--ink);margin-right:6px}
.cap-pill{font-size:13px;color:var(--ink-2);background:#F2F7FB;border:1px solid var(--line);border-radius:999px;padding:6px 14px;transition:background .16s,color .16s,border-color .16s}
.cap-pill:hover{background:rgba(27,110,156,.08);color:var(--brand);border-color:rgba(27,110,156,.28)}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface);box-shadow:var(--sh-1)}
.compare-col.old{background:#F2F5F7}
.compare-col.new{background:rgba(18,140,140,.06);border-color:rgba(18,140,140,.22)}
.compare-head{display:flex;align-items:center;gap:10px;padding:20px 24px 16px;font-size:15.5px;font-weight:700;color:var(--ink)}
.compare-badge{font-size:12px;font-weight:600;border-radius:999px;padding:3px 10px;background:#E5EAEE;color:#5C7080}
.compare-col.new .compare-badge{background:rgba(18,140,140,.14);color:#0E7373}
.compare-item{display:flex;gap:12px;align-items:flex-start;padding:15px 24px;border-top:1px solid var(--line);font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.ci-mark{flex:none;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:3px}
.compare-col.old .ci-mark{background:#DDE4E9;color:#6C7F8E}
.compare-col.new .ci-mark{background:var(--accent);color:#fff}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0EA}
.post-card:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px}
.post-cover{aspect-ratio:16/10;overflow:hidden;background:#E8EFF4}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:20px 22px 0;display:flex;flex-direction:column;flex:1}
.pill{align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);background:rgba(27,110,156,.08);border-radius:999px;padding:4px 10px;line-height:1.5}
.post-title{font-size:18px;font-weight:600;line-height:1.55;color:var(--ink);margin-top:12px;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);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 22px 0;padding:14px 0 16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.post-arrow{color:var(--brand);font-weight:600;white-space:nowrap}
.empty-card{border:1px dashed #C8D6E0;border-radius:14px;background:var(--surface);padding:52px 24px;text-align:center;color:var(--muted)}
.empty-icon{width:46px;height:46px;border-radius:12px;background:#EDF3F7;color:#8FA3B2;display:grid;place-items:center;margin:0 auto 14px;font-size:18px}
.empty-card p{font-size:14.5px;margin-bottom:18px}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:background .18s,border-color .18s,box-shadow .18s}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item:focus-within{border-color:rgba(27,110,156,.3)}
.faq-plus{position:relative;width:16px;height:16px;flex:none;transition:transform .22s ease-out}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-plus::before{left:0;right:0;top:7px;height:2px}
.faq-plus::after{top:0;bottom:0;left:7px;width:2px}
.faq-item[open]{background:#F6FAFC;border-color:rgba(27,110,156,.3);box-shadow:var(--sh-1)}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-answer{padding:2px 22px 18px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- cta form ---------- */
.cta-panel{display:grid;grid-template-columns:1fr 1.08fr;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--sh-2)}
.cta-left{position:relative;padding:44px 40px;background:linear-gradient(150deg,rgba(27,110,156,.07),rgba(18,140,140,.06));overflow:hidden}
.cta-left::after{content:"";position:absolute;right:-70px;bottom:-90px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(27,110,156,.14),transparent 68%)}
.cta-left h2{position:relative;z-index:1;font-size:clamp(22px,2.2vw,28px);line-height:1.4;font-weight:700;color:var(--ink)}
.cta-left p{position:relative;z-index:1;font-size:14.5px;line-height:1.85;color:var(--muted);margin-top:12px}
.trust-list{position:relative;z-index:1;margin-top:24px;display:flex;flex-direction:column;gap:10px}
.trust-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.65}
.trust-list li i{flex:none;width:17px;height:17px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:10px;font-weight:700;margin-top:4px}
.cta-form{padding:40px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--muted)}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 14px;height:48px;font-size:15px;color:var(--ink);transition:border-color .18s ease-out,box-shadow .18s ease-out}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A3B2BE}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,110,156,.15)}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:14px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-strong);color:rgba(255,255,255,.78);margin-top:96px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:0;padding:64px 0 52px}
.footer-col{padding:0 28px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col+.footer-col{border-left:1px solid rgba(255,255,255,.14)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{box-shadow:none;background:rgba(255,255,255,.16)}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:320px}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:13.5px;color:rgba(255,255,255,.75);transition:color .16s}
.footer-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-cta p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:16px}
.btn-outline-light{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:10px;border:1.5px solid rgba(255,255,255,.42);color:#fff;font-size:14px;font-weight:600;transition:background .18s,border-color .18s,transform .18s}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.8);transform:translateY(-1px)}
.btn-outline-light:focus-visible{outline:3px solid rgba(255,255,255,.35);outline-offset:2px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.6)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .mega-panel{width:520px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .mega{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:66px}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{aspect-ratio:16/10;order:2}
  .hero-desc{max-width:none}
  .section{padding:72px 0}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .service-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .svc-feature{grid-row:auto;grid-column:1 / -1}
  .compare-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr}
  .cta-left,.cta-form{padding:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px 0;padding:48px 0 40px}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .footer-col:nth-child(4){border-left:1px solid rgba(255,255,255,.14)}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav-actions .btn-primary{display:none}
  .hero-title{font-size:clamp(26px,7vw,32px)}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn{width:100%}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .metrics-grid{grid-template-columns:1fr}
  .service-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .compare-item{padding:14px 18px;font-size:14px}
  .compare-head{padding:16px 18px 14px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:2px 18px 16px;font-size:14.5px}
  .cta-left,.cta-form{padding:26px 20px}
  .form-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:0;padding:40px 0 32px}
  .footer-col{padding:22px 0}
  .footer-col+.footer-col{border-left:0;border-top:1px solid rgba(255,255,255,.14)}
  .footer-col:nth-child(3){padding-left:0}
  .footer-col:nth-child(4){border-left:0}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer{margin-top:56px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
    --bg:#F4F7F9;
    --surface:#FFFFFF;
    --brand:#1B6E9C;
    --brand-strong:#124E70;
    --ink:#0F344C;
    --ink-2:#29455A;
    --muted:#6C7F8E;
    --line:#E3EAF0;
    --accent:#128C8C;
    --warm:#DE9A3F;
    --r-sm:6px;
    --r-md:10px;
    --r-lg:14px;
    --r-xl:20px;
    --sh-1:0 1px 2px rgba(15,52,76,.05), 0 6px 18px -10px rgba(15,52,76,.18);
    --sh-2:0 2px 4px rgba(15,52,76,.06), 0 18px 36px -18px rgba(15,52,76,.28);
    --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.78;
    color:var(--ink-2);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
  ul,ol{padding:0;list-style:none}
  a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
  a:hover{color:var(--brand-strong)}
  img{max-width:100%;display:block;border:0}
  button{font-family:inherit}
  :focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px;border-radius:var(--r-sm)}

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

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:90;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease-out;
  }
  .site-header.is-scrolled{box-shadow:var(--sh-1)}
  .header-inner{display:flex;align-items:center;gap:28px;height:72px}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:32px;height:32px;border-radius:9px;background:var(--brand);
    display:grid;place-items:center;flex:0 0 auto;
  }
  .logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
  .nav-links{display:flex;align-items:center;gap:28px;margin-left:6px}
  .nav-link{
    position:relative;display:inline-block;padding:6px 0;
    font-size:15px;font-weight:500;color:var(--ink-2);
    transition:color .18s ease-out;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left center;
    transition:transform .2s ease-out;
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--brand)}
  .nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
  .nav-link.active{color:var(--brand)}
  .nav-link.active::after{transform:scaleX(1)}
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}

  .mega{position:relative}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:6px;
    background:transparent;border:1px solid transparent;border-radius:var(--r-md);
    padding:8px 12px;font-size:14px;color:var(--ink-2);cursor:pointer;
    transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .mega-trigger:hover,.mega:focus-within .mega-trigger{color:var(--brand);border-color:var(--line);background:#F2F7FB}
  .mega-trigger .caret{transition:transform .2s ease-out}
  .mega:hover .mega-trigger .caret,.mega:focus-within .mega-trigger .caret{transform:rotate(180deg)}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 14px);width:560px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-2);padding:20px;
    display:grid;grid-template-columns:1.15fr .85fr;gap:18px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out;
  }
  .mega-panel::before{content:"";position:absolute;left:0;right:0;top:-16px;height:16px}
  .mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-col-title{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-bottom:10px}
  .mega-list li + li{margin-top:2px}
  .mega-list a{
    display:block;padding:8px 10px;border-radius:var(--r-md);
    color:var(--ink);font-size:14px;font-weight:600;
    transition:background .18s ease-out,color .18s ease-out;
  }
  .mega-list a:hover{background:#F2F7FB;color:var(--brand)}
  .mega-list span{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px}
  .mega-card{
    background:#F2F7FB;border:1px solid var(--line);border-radius:var(--r-md);
    padding:16px;display:flex;flex-direction:column;justify-content:space-between;gap:12px;
  }
  .mega-card h4{font-size:14px;font-weight:700;color:var(--ink)}
  .mega-card p{font-size:12.5px;color:var(--muted);line-height:1.6}
  .mega-card .arrow-link{font-size:13px;font-weight:600}

  .menu-toggle{
    display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-md);
    background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;
  }
  .menu-toggle span{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease-out,background .22s ease-out}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
    transition:transform .22s ease-out,top .22s ease-out;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}
  body.drawer-open .menu-toggle span{background:transparent}
  body.drawer-open .menu-toggle span::before{top:0;transform:rotate(45deg)}
  body.drawer-open .menu-toggle span::after{top:0;transform:rotate(-45deg)}

  .drawer-mask{position:fixed;inset:72px 0 0 0;background:rgba(15,52,76,.35);opacity:0;pointer-events:none;transition:opacity .25s ease-out;z-index:70}
  .mobile-drawer{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:80;
    background:var(--surface);padding:24px 24px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s ease-out;
    display:none;
  }
  body.drawer-open .mobile-drawer{transform:translateX(0)}
  body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
  .drawer-title{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.6px;margin:22px 0 10px}
  .drawer-link{display:block;font-size:18px;font-weight:600;color:var(--ink);padding:12px 0;border-bottom:1px solid var(--line)}
  .drawer-link:hover{color:var(--brand)}
  .drawer-sub{display:block;font-size:14px;color:var(--ink-2);padding:10px 0 10px 14px;border-left:2px solid var(--line)}
  .drawer-sub:hover{color:var(--brand);border-left-color:var(--brand)}
  .drawer-cta{margin-top:24px;display:block;text-align:center}

  /* ---------- buttons ---------- */
  .btn-primary,.btn-secondary,.btn-outline-light{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-md);padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
    cursor:pointer;border:1px solid transparent;
    transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--brand-strong);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-secondary{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
  .btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FB}
  .btn-secondary:active{transform:translateY(1px)}
  .btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
  .btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}
  .btn-block{display:flex;width:100%}
  .arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand)}
  .arrow-link span{transition:transform .18s ease-out}
  .arrow-link:hover span{transform:translateX(3px)}

  /* ---------- page main ---------- */
  .page-main{padding:26px 0 96px}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
  .breadcrumb a{color:var(--muted)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:#B9C7D2}
  .breadcrumb .current{color:var(--ink-2);font-weight:600}

  .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start}
  .article-head{padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:32px}
  .badge-cat{
    display:inline-block;padding:5px 12px;border-radius:999px;
    background:rgba(27,110,156,.12);color:var(--brand);
    font-size:12.5px;font-weight:600;margin-bottom:16px;
  }
  .article-title{
    max-width:760px;
    font-size:clamp(26px,3vw,36px);line-height:1.32;font-weight:700;
    letter-spacing:-.5px;color:var(--ink);
  }
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;font-size:12.5px;color:var(--muted)}
  .article-meta .dot{color:#BCC9D4}
  .article-cover{margin-top:24px;border-radius:var(--r-lg);overflow:hidden;background:var(--bg);border:1px solid var(--line)}
  .article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

  .article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-2)}
  .article-body h2{
    position:relative;padding-left:15px;margin:44px 0 16px;
    font-size:clamp(22px,2.2vw,27px);line-height:1.42;font-weight:700;color:var(--ink);
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand);
  }
  .article-body h2:first-child{margin-top:0}
  .article-body h3{margin:32px 0 12px;font-size:20px;line-height:1.45;font-weight:600;color:var(--ink)}
  .article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--ink)}
  .article-body p{margin:0 0 20px}
  .article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
  .article-body ul{list-style:disc}
  .article-body ol{list-style:decimal}
  .article-body li{margin:8px 0}
  .article-body ul li::marker{color:var(--brand)}
  .article-body ol li::marker{color:var(--brand);font-weight:600}
  .article-body blockquote{
    margin:24px 0;padding:16px 20px;border-left:3px solid var(--brand);
    background:#F2F7FB;border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-2);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;font-weight:600}
  .article-body a:hover{color:var(--brand-strong)}
  .article-body img{border-radius:10px;margin:24px 0 8px;height:auto}
  .article-body figure{margin:24px 0}
  .article-body figure img{margin:0}
  .article-body figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.6}
  .article-body strong{color:var(--ink);font-weight:600}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
  .article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
  .article-body th{background:#F2F7FB;color:var(--ink);font-weight:600}

  .article-empty{
    background:var(--surface);border:1px dashed #C9D8E2;border-radius:var(--r-lg);
    padding:44px 28px;text-align:center;
  }
  .article-empty h2{padding-left:0;margin:0 0 12px;font-size:22px}
  .article-empty h2::before{display:none}
  .article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

  .article-foot{
    max-width:760px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  }
  .article-foot .note{font-size:12.5px;color:var(--muted);margin-left:auto}

  /* ---------- aside ---------- */
  .article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
  .aside-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:22px;box-shadow:var(--sh-1);
  }
  .aside-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
  .aside-list li + li{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}
  .aside-list a{display:block}
  .aside-list .t{
    font-size:14px;font-weight:600;color:var(--ink-2);line-height:1.55;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .aside-list a:hover .t{color:var(--brand)}
  .aside-list .d{display:block;font-size:12px;color:var(--muted);margin-top:6px;font-variant-numeric:tabular-nums}
  .aside-card .btn-secondary{margin-top:18px}
  .aside-card--dark{background:var(--brand-strong);border-color:var(--brand-strong)}
  .aside-card--dark .aside-title{color:#fff}
  .aside-card--dark p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.8);margin-bottom:16px}

  /* ---------- related ---------- */
  .section{margin-top:80px}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
  .section-head h2{font-size:clamp(22px,2.2vw,28px);line-height:1.3;font-weight:700;color:var(--ink)}
  .section-head p{font-size:14px;color:var(--muted);margin-top:6px}
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .post-card{
    display:flex;flex-direction:column;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
    box-shadow:var(--sh-1);
    transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  }
  .post-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#C9DBE8}
  .post-card figure{overflow:hidden;background:var(--bg)}
  .post-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
  .post-card:hover img{transform:scale(1.03)}
  .post-card .body{padding:18px 20px 16px;display:flex;flex-direction:column;gap:10px;flex:1}
  .post-card .badge-cat{margin:0;font-size:12px;padding:4px 10px;align-self:flex-start}
  .post-card h3{
    font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card h3 a{color:inherit}
  .post-card h3 a:hover{color:var(--brand)}
  .post-card p{
    font-size:14px;line-height:1.7;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card .foot{
    margin-top:auto;padding:12px 20px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
  }

  /* ---------- cta ---------- */
  .cta-wrap{
    margin-top:80px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-xl);box-shadow:var(--sh-2);overflow:hidden;
    display:grid;grid-template-columns:1fr 1fr;
  }
  .cta-copy{
    position:relative;padding:44px 40px;
    background:
      radial-gradient(circle at 88% 12%, rgba(18,140,140,.14), transparent 46%),
      radial-gradient(circle at 6% 92%, rgba(27,110,156,.12), transparent 52%),
      #F7FBFD;
    border-right:1px solid var(--line);
  }
  .cta-copy h2{font-size:clamp(22px,2.2vw,28px);line-height:1.38;font-weight:700;color:var(--ink);margin-bottom:14px}
  .cta-copy p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:22px}
  .trust-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);margin-bottom:10px}
  .trust-list .tick{
    flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:rgba(18,140,140,.14);
    color:var(--accent);display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:3px;
  }
  .cta-form{padding:44px 40px;display:grid;grid-template-columns:1fr 1fr;gap:16px;align-content:start}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:14px;color:var(--muted)}
  .field input,.field textarea{
    width:100%;height:48px;padding:0 14px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
    font-size:15px;color:var(--ink);transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
  .field input::placeholder,.field textarea::placeholder{color:#A7B6C2}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,110,156,.16);
  }
  .form-note{grid-column:1 / -1;font-size:12.5px;color:var(--muted);line-height:1.7}

  /* ---------- footer ---------- */
  .site-footer{background:var(--brand-strong);color:rgba(255,255,255,.78);padding:64px 0 28px;font-size:14px}
  .footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
  .footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .logo-mark{background:rgba(255,255,255,.14)}
  .footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
  .footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:34em}
  .footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:rgba(255,255,255,.66)}
  .footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
  .footer-list li + li{margin-top:10px}
  .footer-list a{font-size:13.5px;color:rgba(255,255,255,.74)}
  .footer-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
  .footer-cta p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:18px}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
    font-size:12.5px;color:rgba(255,255,255,.6);
  }

  @media (max-width:1279px){
    .article-layout{gap:40px}
  }
  @media (max-width:1023px){
    .nav-links,.header-actions .mega,.header-actions .btn-primary{display:none}
    .menu-toggle{display:inline-flex}
    .mobile-drawer{display:block}
    .article-layout{grid-template-columns:minmax(0,1fr);gap:44px}
    .article-aside{position:static}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-wrap{grid-template-columns:1fr}
    .cta-copy{border-right:0;border-bottom:1px solid var(--line);padding:36px 32px}
    .cta-form{padding:36px 32px}
    .footer-top{grid-template-columns:1fr 1fr;gap:28px}
    .footer-col + .footer-col{border-left:0;padding-left:0}
    .page-main{padding-bottom:72px}
    .section,.cta-wrap{margin-top:64px}
  }
  @media (max-width:767px){
    .container{padding:0 20px}
    .header-inner{gap:14px}
    .page-main{padding:20px 0 56px}
    .article-body{font-size:16px;line-height:1.85}
    .article-body h2{margin-top:36px}
    .card-grid{grid-template-columns:1fr;gap:16px}
    .cta-copy,.cta-form{padding:28px 22px}
    .cta-form{grid-template-columns:1fr}
    .footer-top{grid-template-columns:1fr;gap:26px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .section-head{flex-direction:column;align-items:flex-start;gap:8px}
    .article-foot .note{margin-left:0;width:100%}
  }
  @media (max-width:520px){
    .article-title{font-size:24px}
    .aside-card{padding:18px}
    .post-card .body{padding:16px}
    .post-card .foot{padding:10px 16px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }

/* roulang page: category1 */
:root{
  --bg:#F4F7F9;
  --surface:#FFFFFF;
  --brand:#1B6E9C;
  --brand-strong:#124E70;
  --ink:#0F344C;
  --ink-2:#29455A;
  --muted:#6C7F8E;
  --line:#E3EAF0;
  --accent:#128C8C;
  --warm:#DE9A3F;
  --sh-1:0 1px 2px rgba(15,52,76,.05),0 6px 18px -10px rgba(15,52,76,.18);
  --sh-2:0 2px 4px rgba(15,52,76,.06),0 18px 36px -18px rgba(15,52,76,.28);
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:20px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.h1{font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;letter-spacing:-.5px;color:var(--ink)}
.h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;color:var(--ink)}
.h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink)}
.lede{font-size:18px;line-height:1.7;color:var(--muted)}
.body-text{font-size:16px;line-height:1.78;color:var(--ink-2)}
.small{font-size:14px;line-height:1.6}
.micro{font-size:12.5px;line-height:1.5;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);flex-shrink:0;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;transition:color .18s ease-out,background .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:center;
  transition:transform .18s ease-out;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand);outline:none}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;font-size:14px;font-weight:500;color:var(--ink-2);
  background:transparent;border:1px solid transparent;border-radius:999px;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.mega-trigger svg{transition:transform .18s ease-out}
.mega:hover .mega-trigger,.mega:focus-within .mega-trigger{
  background:#F2F7FB;color:var(--brand);border-color:#D9E7F0;
}
.mega:hover .mega-trigger svg,.mega:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:560px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:20px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:18px;
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.mega-panel::before{content:"";position:absolute;left:0;right:0;top:-16px;height:16px}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;
}
.mega-col-title{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-bottom:10px}
.mega-item{display:block;padding:10px 12px;border-radius:10px;transition:background .16s ease-out}
.mega-item:hover,.mega-item:focus-visible{background:#F2F7FB;outline:none}
.mega-item-title{display:block;font-size:14.5px;font-weight:600;color:var(--ink)}
.mega-item-desc{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.mega-card{
  display:flex;flex-direction:column;justify-content:space-between;
  background:#F2F7FB;border:1px solid #E1ECF4;border-radius:var(--r-md);
  padding:16px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.mega-card:hover{border-color:#BFD8E7;box-shadow:var(--sh-1)}
.mega-card strong{display:block;font-size:14.5px;color:var(--ink);font-weight:600}
.mega-card span.arrow{margin-top:14px;font-size:13px;color:var(--brand);font-weight:600}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 22px}
.mobile-nav.open{display:block}
.mobile-nav .container{display:flex;flex-direction:column;gap:4px}
.mobile-link{display:block;padding:12px 10px;font-size:17px;font-weight:500;color:var(--ink);border-radius:10px}
.mobile-link.active{color:var(--brand);background:#F2F7FB;font-weight:600}
.mobile-sub{padding:4px 10px 10px;display:flex;flex-direction:column;gap:2px}
.mobile-sub a{font-size:14px;color:var(--muted);padding:8px 12px;border-radius:8px}
.mobile-sub a:hover{color:var(--brand);background:#F6FAFC}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-md);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FB}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,110,156,.28)}
.btn-sm{padding:9px 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow span{transition:transform .18s ease-out}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover span{transform:translateX(2px)}
.link-arrow:focus-visible{outline:none;text-decoration:underline;text-underline-offset:4px;box-shadow:0 0 0 3px rgba(27,110,156,.28);border-radius:4px}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;font-size:12.5px;font-weight:500;
  background:rgba(27,110,156,.08);color:var(--brand);
}
.chip-outline{background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13px;padding:7px 14px}
.chip-accent{background:rgba(18,140,140,.1);color:#0E7474}

/* ---------- hero ---------- */
.cat-hero{padding:56px 0 44px;background:var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:44px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(27,110,156,.08);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.hero-title{margin-bottom:16px}
.hero-desc{max-width:640px}
.hero-desc p{font-size:16px;line-height:1.8;color:var(--muted)}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:22px;font-size:13px;color:var(--muted)}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta span + span::before{content:"";display:inline-block;width:1px;height:12px;background:var(--line);margin:0 14px 0 0;vertical-align:-1px}
.hero-meta b{color:var(--brand-strong);font-weight:700;font-variant-numeric:tabular-nums}
.scope-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:26px;box-shadow:var(--sh-1);
}
.scope-card h2{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px}
.scope-card p{font-size:12.5px;color:var(--muted);margin-bottom:16px}
.scope-chips{display:flex;flex-wrap:wrap;gap:8px}
.scope-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--muted);line-height:1.6;
}

/* ---------- mini stats ---------- */
.mini-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.mini-stat{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.mini-stat::before{content:"";position:absolute;top:16px;left:22px;width:28px;height:3px;border-radius:2px;background:var(--brand)}
.mini-stat:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#C9DCE8}
.mini-stat .value{
  margin-top:16px;font-size:34px;line-height:1.1;font-weight:700;color:var(--brand-strong);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.mini-stat .value em{font-style:normal;font-size:15px;font-weight:600;color:var(--muted);margin-left:3px}
.mini-stat .label{margin-top:8px;font-size:14px;font-weight:600;color:var(--ink-2)}
.mini-stat .note{
  margin-top:6px;font-size:12.5px;color:var(--muted);
  display:flex;align-items:center;gap:6px;
}
.mini-stat .note::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex-shrink:0}

/* ---------- split layout ---------- */
.section{padding:72px 0}
.section-tight{padding:0 0 72px}
.section-head{margin-bottom:32px}
.section-head .h2{margin-bottom:10px}
.split{display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;align-items:start}
.anchor-nav{position:sticky;top:96px;padding-top:6px}
.anchor-nav .anchor-label{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-bottom:10px;padding-left:14px}
.anchor-link{
  display:block;padding:10px 14px;font-size:14px;color:var(--muted);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;
  transition:color .18s ease-out,background .18s ease-out,border-color .18s ease-out;
}
.anchor-link:hover{color:var(--brand);background:#EFF5F9}
.anchor-link.current{color:var(--ink);font-weight:600;border-left-color:var(--brand);background:#EAF2F7}
.anchor-cta{margin-top:20px;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.anchor-cta p{font-size:12.5px;color:var(--muted);line-height:1.6;margin-bottom:12px}
.anchor-cta .btn{width:100%;padding:10px 14px;font-size:13.5px}

.content-block + .content-block{margin-top:56px}
.block-head{margin-bottom:22px}
.block-head .h3{margin-bottom:8px}
.block-head p{font-size:14px;color:var(--muted)}
.prose p{font-size:15.5px;line-height:1.85;color:var(--ink-2);margin-bottom:16px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:600}

/* ---------- insight cards ---------- */
.insight-list{display:flex;flex-direction:column;gap:18px}
.insight-card{
  display:grid;grid-template-columns:200px minmax(0,1fr);gap:22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.insight-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#C9DCE8}
.insight-thumb{width:100%;height:130px;border-radius:10px;overflow:hidden;background:var(--bg)}
.insight-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.insight-card:hover .insight-thumb img{transform:scale(1.03)}
.insight-body{display:flex;flex-direction:column;gap:8px;padding:4px 4px 4px 0;min-width:0}
.insight-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.insight-card .h3{font-size:18px;line-height:1.45}
.insight-card .h3 a{transition:color .18s ease-out}
.insight-card .h3 a:hover{color:var(--brand)}
.insight-desc{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.insight-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.insight-foot .date{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- checklist ---------- */
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-list li{
  position:relative;padding-left:30px;font-size:15px;line-height:1.75;color:var(--ink-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;
  background:rgba(18,140,140,.12);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:11px;width:6px;height:9px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(40deg);
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:0;transition:background .18s ease-out,border-color .18s ease-out;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,110,156,.28);border-radius:12px}
.faq-icon{
  margin-left:auto;flex-shrink:0;width:16px;height:16px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open]{background:#F6FAFC;border-color:#C9DCE8}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{
  padding:0 22px 18px;font-size:15px;line-height:1.85;color:var(--muted);
}

/* ---------- cta bar ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:28px 32px;box-shadow:var(--sh-1);
}
.cta-bar::before{
  content:"";position:absolute;right:-40px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:rgba(27,110,156,.06);
}
.cta-bar::after{
  content:"";position:absolute;right:90px;bottom:-70px;width:140px;height:140px;border-radius:50%;
  background:rgba(18,140,140,.07);
}
.cta-bar-text{position:relative;z-index:1;max-width:640px}
.cta-bar-text .h3{margin-bottom:6px;font-size:19px}
.cta-bar-text p{font-size:14px;color:var(--muted)}
.cta-bar .btn{position:relative;z-index:1}

/* ---------- source cards ---------- */
.source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.source-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.source-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#C9DCE8}
.source-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(27,110,156,.08);color:var(--brand);margin-bottom:16px;
}
.source-card .h3{font-size:17px;margin-bottom:8px}
.source-card p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-strong);color:rgba(255,255,255,.78);margin-top:96px;padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.5fr .8fr 1fr 1.1fr;gap:32px;padding-bottom:44px}
.footer-col{min-width:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.14);padding-left:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.16);box-shadow:none}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
.footer-about{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:rgba(255,255,255,.62)}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:13.5px;color:rgba(255,255,255,.74);transition:color .18s ease-out}
.footer-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-cta p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px}
.btn-outline-light{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--r-md);
  border:1.5px solid rgba(255,255,255,.42);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.8);transform:translateY(-1px)}
.btn-outline-light:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.btn-outline-light span{transition:transform .18s ease-out}
.btn-outline-light:hover span{transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .split{grid-template-columns:210px minmax(0,1fr);gap:32px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .mega{display:none}
  .nav-toggle{display:flex}
  .header-right{gap:10px}
  .header-right .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .mini-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:24px}
  .anchor-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:2px 0 10px;-webkit-overflow-scrolling:touch}
  .anchor-nav .anchor-label{display:none}
  .anchor-link{
    border-left:0;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;
    white-space:nowrap;background:#fff;border:1px solid var(--line);padding:9px 14px;
  }
  .anchor-link.current{border-color:var(--brand);background:#EAF2F7}
  .anchor-cta{display:none}
  .source-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .section{padding:56px 0}
  .section-tight{padding:0 0 56px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .cat-hero{padding:40px 0 32px}
  .mini-stats{grid-template-columns:1fr;gap:14px}
  .insight-card{grid-template-columns:1fr;padding:14px;gap:14px}
  .insight-thumb{height:180px}
  .insight-body{padding:0 2px 2px}
  .cta-bar{padding:22px;flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .footer-top{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .site-footer{padding-top:48px;margin-top:64px}
  .hero-meta{gap:8px 0}
  .hero-meta span{width:100%}
  .hero-meta span + span::before{display:none}
  .panel{padding:20px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 16px;font-size:14px}
  .scope-card{padding:20px}
}
@media (max-width:520px){
  .h1{font-size:28px}
  .hero-meta b{font-size:14px}
  .insight-card .h3{font-size:17px}
}

/* roulang page: category2 */
:root{
  --bg:#F4F7F9;
  --surface:#FFFFFF;
  --brand:#1B6E9C;
  --brand-strong:#124E70;
  --ink:#0F344C;
  --ink-2:#29455A;
  --muted:#6C7F8E;
  --line:#E3EAF0;
  --accent:#128C8C;
  --warm:#DE9A3F;
  --sh-1:0 1px 2px rgba(15,52,76,.05), 0 6px 18px -10px rgba(15,52,76,.18);
  --sh-2:0 2px 4px rgba(15,52,76,.06), 0 18px 36px -18px rgba(15,52,76,.28);
  --r-sm:6px;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand-strong));
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:0;}
.nav-links{display:flex;align-items:center;gap:6px;margin-right:auto;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;
  color:var(--ink-2);border-radius:8px;transition:color .18s ease-out,background .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px;}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* Mega menu */
.mega{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;background:transparent;border:0;
  color:var(--ink-2);font-size:14.5px;font-weight:500;padding:9px 10px;border-radius:8px;
  transition:color .18s ease-out,background .18s ease-out;cursor:pointer;
}
.mega-trigger:hover,.mega-trigger:focus-visible{color:var(--brand);background:#F2F7FB;outline:none;}
.mega-trigger .caret{font-size:11px;transition:transform .18s ease-out;}
.mega:hover .mega-trigger .caret,.mega:focus-within .mega-trigger .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:560px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:20px;
  display:grid;grid-template-columns:1fr .85fr;gap:18px;
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mega-panel::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px;}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;
}
.mega-col-title{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:0;margin-bottom:10px;}
.mega-link{
  display:block;padding:10px 12px;border-radius:10px;
  transition:background .18s ease-out,color .18s ease-out;
}
.mega-link:hover,.mega-link:focus-visible{background:#F2F7FB;outline:none;}
.mega-link strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink);}
.mega-link span{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px;}
.mega-feature{
  background:linear-gradient(160deg,#F2F7FB,#EAF3F8);
  border:1px solid var(--line);border-radius:12px;padding:18px;
  display:flex;flex-direction:column;justify-content:space-between;gap:14px;
}
.mega-feature h4{font-size:14.5px;font-weight:600;color:var(--ink);margin:0 0 6px;}
.mega-feature p{font-size:12.5px;color:var(--muted);line-height:1.7;margin:0;}
.mega-feature a{font-size:13px;font-weight:600;color:var(--brand);}
.mega-feature a:hover{text-decoration:underline;text-underline-offset:4px;}

/* Mobile toggle */
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;
  transition:border-color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease-out,opacity .18s ease-out;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  display:none;position:fixed;top:72px;left:0;right:0;bottom:0;
  background:#fff;z-index:55;padding:24px 24px 40px;overflow-y:auto;
  border-top:1px solid var(--line);box-shadow:var(--sh-2);
}
.mobile-drawer.open{display:block;}
body.nav-open{overflow:hidden;}
.drawer-link{
  display:block;padding:14px 4px;font-size:18px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);transition:color .18s ease-out;
}
.drawer-link.active{color:var(--brand);}
.drawer-link:hover{color:var(--brand);}
.drawer-sub{margin:22px 0 24px;}
.drawer-sub-title{font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:10px;}
.drawer-sub a{display:block;padding:9px 0 9px 14px;font-size:14.5px;color:var(--ink-2);border-left:2px solid var(--line);}
.drawer-sub a:hover{color:var(--brand);border-left-color:var(--brand);}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 24px;
  border:1.5px solid transparent;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-strong);box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-primary:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px;}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FB;}
.btn-secondary:active{transform:translateY(1px);}
.btn-secondary:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:2px;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14.5px;font-weight:600;transition:color .18s ease-out;}
.link-arrow span{transition:transform .18s ease-out;}
.link-arrow:hover{color:var(--brand-strong);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover span{transform:translateX(2px);}

/* ============ Hero ============ */
.page-hero{padding:56px 0 64px;position:relative;overflow:hidden;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .current{color:var(--ink);}
.breadcrumb .sep{color:#B9C8D4;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-block;background:rgba(27,110,156,.08);color:var(--brand);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;
}
.hero-title{
  font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;
  letter-spacing:-.5px;color:var(--ink);margin:16px 0 18px;
}
.hero-sub{font-size:18px;line-height:1.7;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:26px;font-size:13px;color:var(--muted);}
.hero-facts li{position:relative;padding:0 16px;line-height:1.6;}
.hero-facts li:first-child{padding-left:0;}
.hero-facts li + li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:var(--line);
}
.hero-media{position:relative;}
.hero-media::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:132px;height:132px;
  border-radius:28px;background:rgba(27,110,156,.10);z-index:0;
}
.hero-media::before{
  content:"";position:absolute;left:-20px;top:-20px;width:104px;height:104px;
  border-radius:24px;background:rgba(18,140,140,.10);z-index:0;
}
.hero-card{
  position:relative;z-index:1;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:14px;
  transform:rotate(-1.4deg);
}
.hero-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;}
.hero-card figcaption{font-size:12.5px;color:var(--muted);padding:12px 4px 2px;line-height:1.6;}

/* ============ Section basics ============ */
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-title{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.section-desc{font-size:16.5px;line-height:1.78;color:var(--muted);max-width:660px;margin-top:12px;}

/* ============ Plan scroller ============ */
.scroller-wrap{position:relative;}
.scroller-wrap::before,.scroller-wrap::after{
  content:"";position:absolute;top:0;bottom:22px;width:56px;pointer-events:none;z-index:2;
}
.scroller-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(244,247,249,0));}
.scroller-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(244,247,249,0));}
.scroller{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 26px;scrollbar-width:thin;
}
.scroller::-webkit-scrollbar{height:6px;}
.scroller::-webkit-scrollbar-thumb{background:#C9D8E2;border-radius:999px;}
.scroller::-webkit-scrollbar-track{background:transparent;}
.plan-card{
  flex:0 0 300px;scroll-snap-align:start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD8E6;}
.plan-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;}
.plan-card h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--ink);margin:12px 0 10px;}
.plan-card p{font-size:14px;line-height:1.78;color:var(--muted);margin:0 0 18px;}
.plan-meta{font-size:12.5px;color:var(--ink-2);background:#F2F7FB;border-radius:8px;padding:8px 12px;margin-bottom:18px;}
.plan-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);}
.plan-foot .tag{font-size:12px;color:var(--brand);background:rgba(27,110,156,.08);border-radius:999px;padding:4px 10px;}
.plan-foot .arrow{color:var(--brand);font-size:16px;transition:transform .18s ease-out;}
.plan-card:hover .plan-foot .arrow{transform:translateX(3px);}

/* ============ Timeline ============ */
.timeline-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.timeline-note{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;margin-top:26px;
}
.timeline-note h3{font-size:16px;font-weight:600;color:var(--ink);margin:0 0 10px;}
.timeline-note p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.timeline{position:relative;padding-left:4px;}
.tl-item{position:relative;padding:0 0 34px 34px;}
.tl-item::before{
  content:"";position:absolute;left:7px;top:22px;bottom:0;width:2px;background:var(--line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(27,110,156,.14);
}
.tl-step{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.04em;}
.tl-item h3{font-size:19px;font-weight:600;color:var(--ink);margin:6px 0 8px;line-height:1.45;}
.tl-item p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0;}

/* ============ Facts band ============ */
.facts-band{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.fact-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.fact-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD8E6;}
.fact-label{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.04em;}
.fact-value{font-size:22px;font-weight:700;color:var(--ink);margin:12px 0 10px;font-variant-numeric:tabular-nums;line-height:1.35;}
.fact-card p{font-size:14px;line-height:1.78;color:var(--muted);margin:0;}

/* ============ Scene cards ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BFD8E6;}
.scene-thumb{overflow:hidden;background:#EAF1F6;}
.scene-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s ease-out;}
.scene-card:hover .scene-thumb img{transform:scale(1.03);}
.scene-body{padding:22px;}
.scene-body h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.45;margin:0 0 10px;}
.scene-body p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:18px 22px;transition:border-color .18s ease-out,background .18s ease-out;
}
.faq-item[open]{background:#F6FAFC;border-color:#BFD8E6;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:focus-visible{outline:3px solid rgba(27,110,156,.28);outline-offset:4px;border-radius:6px;}
.faq-sign{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .2s ease-out;}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;transition:opacity .2s ease-out;}
.faq-item[open] .faq-sign{transform:rotate(45deg);}
.faq-answer{font-size:15px;line-height:1.85;color:var(--muted);padding-top:12px;margin:0;}

/* ============ CTA ============ */
.cta-panel{
  background:linear-gradient(150deg,#FFFFFF 0%,#F2F8FB 55%,#EAF3F8 100%);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:44px;position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(18,140,140,.08);pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr .95fr;gap:48px;align-items:start;position:relative;z-index:1;}
.check-list{margin-top:24px;display:grid;gap:12px;font-size:14.5px;}
.check-list li{position:relative;padding-left:26px;color:var(--ink-2);}
.check-list li::before{
  content:"";position:absolute;left:0;top:7px;width:15px;height:15px;border-radius:50%;
  background:rgba(18,140,140,.14);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:11px;width:7px;height:3px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:32px;
}
.form-title{font-size:17px;font-weight:600;color:var(--ink);margin:0 0 20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  font-family:inherit;transition:border-color .18s ease-out,box-shadow .18s ease-out;
  appearance:none;-webkit-appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236C7F8E' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,110,156,.14);
}
.form-hint{font-size:12.5px;line-height:1.7;color:var(--muted);margin-top:14px;}

/* ============ Footer ============ */
.site-footer{background:var(--brand-strong);color:rgba(255,255,255,.78);margin-top:96px;padding:72px 0 0;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;}
.footer-col{padding:0 32px;border-left:1px solid rgba(255,255,255,.14);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;letter-spacing:0;}
.footer-about{font-size:14px;line-height:1.8;margin:0 0 18px;color:rgba(255,255,255,.72);}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.62);}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-list a{color:rgba(255,255,255,.78);transition:color .18s ease-out;}
.footer-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-cta p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.7);margin:0 0 18px;}
.btn-outline-light{
  display:inline-flex;align-items:center;gap:8px;border:1.5px solid rgba(255,255,255,.4);
  border-radius:var(--r-btn);padding:10px 18px;font-size:14px;font-weight:600;color:#fff;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.8);}
.btn-outline-light:focus-visible{outline:3px solid rgba(255,255,255,.5);outline-offset:2px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);margin-top:56px;padding:20px 0 28px;
  font-size:12.5px;color:rgba(255,255,255,.6);
}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .hero-grid{gap:36px;grid-template-columns:1fr 1fr;}
  .timeline-layout{grid-template-columns:1fr;gap:32px;}
  .facts-band{grid-template-columns:repeat(3,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(3){padding-left:0;border-left:0;}
}
@media (max-width:900px){
  .nav-links,.mega,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:14px;justify-content:space-between;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .cta-panel{padding:32px 24px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .page-hero{padding:36px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:2;}
  .hero-sub{font-size:16.5px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-facts{font-size:12.5px;}
  .facts-band{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .plan-card{flex:0 0 268px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .site-footer{margin-top:64px;padding-top:56px;}
  .footer-top{grid-template-columns:1fr;gap:32px;padding:0;}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:28px;}
  .footer-col:first-child{border-top:0;padding-top:0;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px;}
  .form-card{padding:22px;}
  .scroller-wrap::before,.scroller-wrap::after{width:28px;}
}
@media (max-width:520px){
  .hero-title{font-size:clamp(26px,7vw,32px);}
  .hero-facts li{padding:0 10px;}
  .plan-card{flex:0 0 84%;}
  .faq-item{padding:16px 16px;}
}