:root{
  --bg:#F5FAFE;--deep:#E7F2FA;--card:#FFFFFF;--sub:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--soft:#6E8899;
  --brand:#4AA3E0;--bright:#6BB8EC;--deepblue:#1B4A6E;--mist:#EAF5FC;--line:rgba(74,163,224,.16);--line-strong:rgba(74,163,224,.42);--shadow:0 12px 28px rgba(27,74,110,.08);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:#fff;color:var(--deepblue);padding:8px 12px;border-radius:8px}
.skip-link:focus{top:8px}
.topline{position:fixed;inset:0 0 auto 0;height:22px;background:var(--deepblue);color:#fff;z-index:500;font-size:12px}
.topline-inner,.brandbar-inner,.section-tabs-inner{max-width:var(--max);margin:0 auto;height:100%;display:flex;align-items:center;padding:0 20px}
.topline-inner{justify-content:space-between}
.text-button{border:0;background:transparent;color:#fff;min-width:44px;min-height:22px;padding:0 2px}
.brandbar{position:fixed;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid var(--line);z-index:490}
.brandbar-inner{justify-content:space-between;gap:16px}
.brand-logo,.footer-logo{display:flex;align-items:center;min-width:64px;min-height:44px}
.brand-logo img,.footer-logo img,.drawer-brand img{height:28px;width:auto;object-fit:contain;object-position:center}
.brand-fallback{font-size:20px;font-weight:800;color:var(--deepblue);letter-spacing:.04em}
.drawer-button,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:0 16px;font-size:14px;font-weight:700}
.drawer-button{border:1px solid var(--line-strong);background:#fff;color:var(--deepblue)}
.app-link{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}
.section-tabs{position:fixed;top:82px;left:0;right:0;height:40px;background:var(--mist);border-bottom:1px solid var(--line);z-index:480}
.section-tabs-inner{justify-content:center;gap:8px}
.section-tabs a{height:30px;min-width:92px;padding:0 18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--deepblue)}
.section-tabs a.is-current{background:var(--brand);color:#fff}
.site-main{max-width:var(--max);margin:0 auto;padding:150px 20px 60px}
.page-shell{display:grid;gap:22px}
.page-hero,.content-section,.mini-card,.feature-card,.cover-card,.app-panel,.faq-item,.timeline-item,.number-card,.index-card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.page-hero{padding:28px}
.eyebrow{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;background:var(--mist);color:var(--deepblue);border-radius:999px;font-size:13px;font-weight:700}
h1{font-size:24px;line-height:1.3;color:var(--title);margin:12px 0 10px}
h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}
h3{font-size:16px;line-height:1.5;color:var(--title);margin:0 0 8px}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}
.lead{font-size:16px;color:var(--muted);max-width:850px}
.content-section{padding:24px}
.content-section + .content-section{margin-top:0}
.section-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.mini-card,.feature-card,.index-card{padding:20px}
.slot{background:var(--mist);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.slot-banner{height:260px}.slot-wide{height:200px}.slot-card{height:180px}.slot-app{height:360px;max-height:360px}.slot-icon{width:64px;height:64px}
.cover-card{overflow:hidden}
.cover-copy{padding:24px}
.cover-copy .brand-name{font-weight:800;color:var(--brand);font-size:16px;letter-spacing:.06em}
.cover-copy .main-sentence{font-size:26px;line-height:1.35;color:var(--title);font-weight:800;margin:8px 0 10px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.button{height:42px;min-width:116px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;border:1px solid transparent;white-space:nowrap}
.button-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}
.button-secondary{background:#fff;color:var(--deepblue);border-color:var(--line-strong)}
.button:hover,.drawer-button:hover,.app-link:hover{transform:translateY(-1px)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(74,163,224,.35);outline-offset:2px}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
.section-title p{color:var(--soft);font-size:13px;margin:0}
.number-list{display:grid;gap:10px}
.number-row{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:start;padding:14px 0;border-bottom:1px solid var(--line)}
.number-row:last-child{border-bottom:0}
.number{width:44px;height:44px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.shelf{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.shelf a{background:var(--mist);border:1px solid var(--line);border-radius:12px;padding:16px;min-height:116px;display:flex;flex-direction:column;justify-content:space-between}
.shelf span{font-size:13px;color:var(--muted)}
.timeline{position:relative;display:grid;gap:14px}
.timeline:before{content:"";position:absolute;left:20px;top:8px;bottom:8px;width:2px;background:var(--line-strong)}
.timeline-item{position:relative;padding:18px 18px 18px 58px}
.timeline-item:before{content:"";position:absolute;left:14px;top:24px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:4px solid var(--mist)}
.status{display:inline-flex;min-height:28px;align-items:center;padding:0 9px;border-radius:999px;background:var(--mist);color:var(--deepblue);font-size:13px;font-weight:700}
.app-panel{padding:24px;display:grid;grid-template-columns:minmax(0,360px) 1fr;gap:24px;align-items:center}
.app-icon-row{display:flex;align-items:center;gap:14px;margin-bottom:12px}.app-icon-row .slot{flex:0 0 auto}
.notice{padding:16px 18px;border-left:4px solid var(--brand);background:var(--mist);border-radius:10px;color:var(--deepblue)}
.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2{font-size:17px}
.link-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.link-list a{background:var(--mist);border:1px solid var(--line);border-radius:10px;padding:14px 16px;min-height:54px;display:flex;align-items:center;justify-content:space-between}.link-list a:after{content:"→";color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag{background:var(--mist);color:var(--deepblue);border-radius:999px;padding:6px 10px;font-size:13px}
.site-footer{background:var(--deepblue);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.25);font-size:13px;padding:36px 20px 72px}
.footer-inner{max-width:var(--max);margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:24px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-brand span{opacity:.84}.footer-logo{min-width:48px}.footer-logo img{filter:brightness(0) invert(1)}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-grid h2{font-size:14px;color:#fff;margin-bottom:8px}.footer-grid a{display:block;padding:4px 0;color:#E7F2FA}.footer-note{margin-top:24px;max-width:800px;color:#E7F2FA}.footer-copy{margin-top:10px;color:#D7EAF6}
.overlay{position:fixed;inset:0;background:rgba(22,50,74,.38);z-index:700;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.drawer-panel{position:fixed;top:0;right:0;bottom:0;width:400px;max-width:86vw;background:#fff;z-index:720;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:-16px 0 30px rgba(27,74,110,.14)}
.drawer-panel.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--deepblue)}.icon-button{min-height:44px;padding:0 12px;border-radius:9px;border:1px solid var(--line-strong);background:#fff;color:var(--deepblue)}.drawer-scroll{height:calc(100vh - 72px);overflow:auto;padding:18px}.drawer-scroll section{margin-bottom:18px}.drawer-scroll h2{font-size:13px;color:var(--soft);margin-bottom:8px}.drawer-scroll a{display:block;padding:12px 8px;border-bottom:1px solid var(--line)}.drawer-scroll a strong{display:block;color:var(--title);font-size:15px}.drawer-scroll a span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.search-panel{position:fixed;left:0;right:0;top:122px;z-index:710;visibility:hidden;pointer-events:none;transform:translateY(-12px);opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:22px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head strong{font-size:18px;color:var(--title)}.search-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-row{display:grid;grid-template-columns:1fr auto;gap:8px}.search-row input{height:44px;border:1px solid var(--line-strong);border-radius:10px;padding:0 12px;color:var(--text);min-width:0}.search-row button{height:44px;border:0;border-radius:10px;padding:0 18px;background:var(--brand);color:#fff;font-weight:700}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-presets a{padding:7px 10px;background:var(--mist);color:var(--deepblue);border-radius:999px}.search-hint{min-height:24px;color:var(--muted);margin-top:8px}
.mobile-bottom{display:none}
@media (max-width:900px){.shelf{grid-template-columns:repeat(2,minmax(0,1fr))}.three-grid{grid-template-columns:1fr}.section-grid{grid-template-columns:1fr}.app-panel{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.link-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){
  body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.topline-inner,.brandbar-inner{padding:0 16px}.brandbar-inner{gap:8px}.brand-logo{min-width:48px}.drawer-button,.app-link{padding:0 12px}.section-tabs{display:none}.site-main{padding:112px 16px 36px}.page-hero,.content-section,.cover-copy,.mini-card,.feature-card,.index-card{padding:18px}.page-hero{border-radius:12px}.cover-copy .main-sentence{font-size:23px}.slot-banner{height:260px}.slot-card{height:180px}.slot-wide{height:200px}.slot-app{height:320px}.section-title{align-items:start;flex-direction:column;gap:4px}.shelf{grid-template-columns:1fr}.link-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.site-footer{padding-bottom:92px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:650;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom a{height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--deepblue)}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.drawer-panel{max-width:86vw}.search-panel{top:0;bottom:0;background:var(--deepblue);padding:18px 16px;display:flex;align-items:flex-start}.search-panel.is-open{visibility:visible}.search-card{width:100%;max-width:none;margin-top:38px;border-radius:14px;background:var(--deepblue);border:1px solid rgba(255,255,255,.2);box-shadow:none;color:#fff}.search-head strong,.search-panel p,.search-form label{color:#fff}.search-head .icon-button{background:#fff}.search-presets a{background:#fff;color:var(--deepblue)}.search-hint{color:#E7F2FA}
}