:root{--blue:#1677EE;--bright:#3395FF;--deep:#075FC6;--ink:#16243A;--text:#3C485A;--muted:#6B7787;--soft:#F7FAFF;--pale:#EDF5FF;--ice:#E5F1FF;--navy:#0A315E;--footer:#071D37;--line:rgba(22,119,238,.12);--shadow:0 12px 34px rgba(30,72,120,.08);--bshadow:0 14px 40px rgba(22,119,238,.14);--max:1320px}
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.site-overlay{position:fixed;inset:0;z-index:90;background:rgba(4,24,45,.48);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.channel-drawer,.search-panel{position:fixed;z-index:100;left:0;right:0;top:0;background:#fff;box-shadow:0 30px 60px rgba(0,0,0,.18);transform:translateY(-105%);visibility:hidden;pointer-events:none;transition:transform .28s,visibility .28s}.channel-drawer.is-open,.search-panel.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.drawer-head{height:76px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.drawer-brand div{display:flex;flex-direction:column}.drawer-brand small{color:var(--muted);letter-spacing:.15em}.mega-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:28px;padding-top:32px;padding-bottom:40px}.mega-grid h2{font-size:15px;color:var(--blue);margin:0 0 10px}.mega-grid a{display:block;min-height:40px;padding:8px 0;color:#41516a}.mega-grid a:hover,.mega-grid a:focus-visible{color:var(--deep);outline:none;text-decoration:underline}.search-inner{padding-top:28px;padding-bottom:34px}.panel-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.panel-topline h2{margin:5px 0 0;color:var(--ink);font-size:28px}.search-box{margin-top:24px}.search-box label{display:block;font-weight:700;color:var(--ink);margin-bottom:8px}.search-row{display:flex;gap:10px}.search-row input{flex:1;min-width:0;border:1px solid rgba(22,119,238,.22);padding:13px 15px;border-radius:14px}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.search-links a{padding:8px 13px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:14px}.site-footer{background:var(--footer);color:#DCEEFF;border-top:1px solid rgba(127,190,255,.3);padding:52px 0 18px}.footer-inner{display:grid;grid-template-columns:1.15fr 2fr;gap:60px}.footer-brandline{display:flex;align-items:center;gap:12px}.footer-brandline div{display:flex;flex-direction:column}.footer-brandline strong{color:#fff;font-size:20px}.footer-brandline span{font-size:12px;letter-spacing:.16em}.footer-brand p{max-width:430px;font-size:14px;color:#DCEEFF}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-links h2{font-size:14px;color:#fff;margin:0 0 10px}.footer-links a{display:block;min-height:36px;padding:5px 0;color:#DCEEFF;font-size:14px}.footer-links a:hover,.footer-links a:focus-visible{color:#fff;text-decoration:underline;outline:none}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#b9d6ef}.footer-bottom div{display:flex;gap:16px}
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@media(max-width:767px){body{padding-bottom:58px}.shell,.article-shell{width:min(calc(100% - 28px),var(--max))}.section{padding:56px 0}.section-head{align-items:flex-start;flex-direction:column;margin-bottom:22px}.section-head h2,.section-title{font-size:26px}.hero-wrap{padding:14px 0 28px}.hero-banner{aspect-ratio:16/10;border-radius:24px}.hero-copy{left:14px;bottom:14px;top:auto;transform:none;width:calc(100% - 28px);padding:18px}.hero-copy h1{font-size:32px;margin:3px 0 8px}.hero-copy p{font-size:14px}.page-hero{padding:40px 0 34px}.page-hero h1{font-size:32px}.page-hero p{font-size:16px}.hero-note{padding:20px}.short-list,.question-grid,.guide-grid,.story-grid,.topic-grid,.principle-grid,.safety-grid,.contact-grid{grid-template-columns:1fr}.timeline{grid-template-columns:1fr}.route-line{grid-template-columns:repeat(2,1fr)}.interest-wall{grid-template-columns:repeat(2,1fr)}.privacy-grid{grid-template-columns:1fr}.city-feature-copy h2,.app-copy h2{font-size:28px}.media-grid{grid-template-columns:1fr;grid-template-rows:none}.media-slot,.media-slot.wide{grid-column:auto;grid-row:auto;aspect-ratio:16/10}.media-mini-row{grid-template-columns:1fr 1fr}.notice-row{grid-template-columns:1fr;gap:4px}.index-list{grid-template-columns:1fr}.mobile-bottom{position:fixed;z-index:78;left:0;right:0;bottom:0;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--line);backdrop-filter:blur(14px)}.mobile-bottom a{display:grid;place-items:center;min-height:54px;font-size:13px;color:var(--muted)}.mobile-bottom a.is-current{color:var(--blue);font-weight:800;background:linear-gradient(180deg,var(--pale),#fff)}.mega-grid{grid-template-columns:repeat(2,1fr);gap:16px;padding-top:20px}.footer-links{grid-template-columns:repeat(2,1fr)}.footer-bottom{flex-direction:column;align-items:flex-start}.search-row{flex-direction:column}.search-row button{width:100%}}
@media(max-width:559px){.shell,.article-shell{width:min(calc(100% - 22px),var(--max))}.hero-quick{grid-template-columns:1fr 1fr}.hero-quick span{display:none}.hero-copy h1{font-size:30px}.page-hero h1{font-size:30px}.route-line,.interest-wall,.media-mini-row{grid-template-columns:1fr}.mega-grid{grid-template-columns:1fr 1fr}.footer-links{grid-template-columns:1fr 1fr}.prose h2{font-size:26px}}