:root{
  --bg:#EEF5FB;--bg-deep:#E3EEF7;--card:#FFFFFF;--soft:#D7E8F4;--ink:#10263A;--text:#243848;--muted:#5A7388;--faint:#7E93A6;
  --blue:#3B9FE0;--blue2:#62B7EE;--steel:#1E6FB8;--ice:#A9D6F2;--mint:#2FA8A0;--line:rgba(30,111,184,.16);--line2:rgba(59,159,224,.38);--shadow:0 16px 40px rgba(16,38,58,.08);
  --max:1220px;--top:136px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;color:var(--text);background:linear-gradient(180deg,#F8FBFE 0,var(--bg) 28%,#EAF3FA 100%);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible{outline:3px solid rgba(59,159,224,.35);outline-offset:3px}
.shell-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.site-shell{position:fixed;inset:0 0 auto 0;z-index:60;box-shadow:0 8px 22px rgba(16,38,58,.06)}
.window-strip{height:22px;background:var(--steel);color:#fff;font-size:12px;letter-spacing:.04em}
.strip-inner{height:22px;display:flex;align-items:center;justify-content:space-between}
.strip-brand{font-weight:700}
.strip-search{height:22px;border:0;background:transparent;color:#fff;padding:0 6px;font-weight:700}
.viewport-bar{height:70px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.viewport-inner{height:70px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}
.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center}
.brand-logo{height:34px;max-width:190px;object-fit:contain;object-position:left center}
.brand-text{font-size:24px;color:var(--ink);font-weight:900;letter-spacing:.02em}
.toolbox-trigger{min-width:96px;min-height:44px;border:1px solid var(--line2);background:#fff;color:var(--steel);border-radius:12px;font-weight:800;padding:0 18px}
.toolbox-trigger:hover{background:var(--bg)}
.app-entry{justify-self:end;min-height:44px;display:inline-flex;align-items:center;padding:0 18px;border-radius:12px;color:#fff;font-weight:800;background:linear-gradient(135deg,var(--blue2) 0%,var(--blue) 48%,var(--steel) 100%);box-shadow:0 8px 20px rgba(30,111,184,.18)}
.tab-rail{height:44px;background:var(--soft);border-bottom:1px solid var(--line2)}
.tab-inner{height:44px;display:flex;align-items:center;gap:8px;overflow:hidden}
.tab-link{min-height:32px;display:inline-flex;align-items:center;padding:0 12px;border-radius:8px;color:var(--ink);font-weight:750;font-size:14px;white-space:nowrap}
.tab-link:hover{background:rgba(255,255,255,.7)}
.tab-link.is-active{background:var(--blue);color:#fff}
.page-main{padding-top:calc(var(--top) + 34px);padding-bottom:40px;min-height:70vh}
.hero,.section-block,.policy-block,.article-block{width:min(var(--max),calc(100% - 32px));margin:0 auto 28px}
.hero{padding:24px 0 12px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--steel);font-weight:850;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.eyebrow:before{content:"";width:24px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--blue2),var(--mint))}
h1{font-size:clamp(28px,3.2vw,32px);line-height:1.25;margin:10px 0 14px;color:var(--ink);letter-spacing:-.02em}
h2{color:var(--ink);line-height:1.35}
h3{color:var(--ink);line-height:1.45}
p{margin:0 0 14px}
.lead{max-width:850px;font-size:17px;color:var(--text)}
.hero-actions,.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.primary-btn,.secondary-btn,.text-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:11px;padding:0 18px;font-weight:800}
.primary-btn{color:#fff;background:linear-gradient(135deg,var(--blue2) 0%,var(--blue) 48%,var(--steel) 100%)}
.secondary-btn{background:#fff;border:1px solid var(--line2);color:var(--steel)}
.text-btn{padding:0 2px;color:var(--steel)}
.media-slot{width:100%;border:1px solid var(--line);border-radius:16px;background:linear-gradient(135deg,#F8FCFF,#DCECF7);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:var(--shadow)}
.media-slot.banner{max-height:300px;min-height:190px}
.media-slot.column{height:210px}
.media-slot.app-visual{min-height:360px;max-height:420px}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.fallback-mark{padding:28px;text-align:center;color:var(--steel);font-weight:900;font-size:24px}
.window-card,.info-card,.panel,.shelf-card,.faq-item,.timeline-item,.policy-item{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
.section-head h2{margin:0;font-size:24px}
.section-head p{margin:0;max-width:680px;color:var(--muted)}
.tag-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.tag-card{display:block;min-height:132px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.2s transform,.2s box-shadow}
.tag-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.tag-dot{display:inline-block;width:34px;height:7px;border-radius:4px;background:var(--blue2);margin-bottom:12px}
.tag-card:nth-child(even) .tag-dot{background:var(--mint)}
.tag-card h3{margin:0 0 6px;font-size:17px}
.tag-card p{color:var(--muted);font-size:14px;margin:0 0 8px}
.number-list{display:grid;gap:10px;margin-top:16px}
.number-row{display:grid;grid-template-columns:58px 1fr auto;gap:12px;align-items:center;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:12px}
.number-row .num{font-size:23px;font-weight:900;color:var(--steel);font-variant-numeric:tabular-nums}
.number-row strong{color:var(--ink)}
.number-row span{color:var(--muted)}
.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.window-card{overflow:hidden}
.window-card .media-slot{border:0;border-radius:0;box-shadow:none}
.window-card .card-body{padding:18px}
.window-card h3{margin:0 0 8px;font-size:20px}
.window-card p{color:var(--muted)}
.directory-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.info-card{padding:18px}
.info-card h3{margin:0 0 8px;font-size:18px}
.info-card p{color:var(--muted);margin:0}
.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.theme-card{padding:22px;border-radius:14px;min-height:160px;background:linear-gradient(145deg,#FFFFFF,#D9ECF8);border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between}
.theme-card:nth-child(2n){background:linear-gradient(145deg,#F8FFFE,#D9F0ED)}
.theme-card h3{margin:0 0 8px}.theme-card p{color:var(--muted)}
.shelf-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.shelf-card{padding:18px;position:relative;overflow:hidden}
.shelf-card:before{content:"";position:absolute;inset:auto 0 0;height:6px;background:linear-gradient(90deg,var(--blue2),var(--steel))}
.shelf-card h3{margin:0 0 8px}.shelf-card p{color:var(--muted)}
.big-chart{display:grid;gap:12px}
.chart-row{display:grid;grid-template-columns:96px 1fr;gap:20px;align-items:center;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:14px}
.chart-row .chart-num{font-size:44px;font-weight:950;line-height:1;color:var(--steel)}
.chart-row h3{margin:0 0 6px}.chart-row p{margin:0;color:var(--muted)}
.timeline{position:relative;padding-left:30px;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:10px;top:6px;bottom:6px;width:2px;background:var(--ice)}
.timeline-item{position:relative;padding:18px}.timeline-item:before{content:"";position:absolute;left:-26px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--steel);box-shadow:0 0 0 5px var(--bg)}
.status{display:inline-flex;min-height:28px;align-items:center;padding:0 9px;border-radius:8px;background:var(--soft);color:var(--steel);font-size:13px;font-weight:850}
.app-grid{display:grid;grid-template-columns:minmax(280px,.85fr) 1.15fr;gap:28px;align-items:center}
.app-copy{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.icon-line{display:flex;align-items:center;gap:12px;margin-bottom:14px}.icon-line img{width:60px;height:60px;object-fit:contain;border-radius:14px}.icon-fallback{width:60px;height:60px;border-radius:14px;background:var(--soft);display:grid;place-items:center;color:var(--steel);font-weight:900}
.prose{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.prose h2{margin:28px 0 10px;font-size:22px}.prose h2:first-child{margin-top:0}.prose h3{margin:22px 0 8px}.prose p{color:var(--text)}
.prose ul{padding-left:1.2em;color:var(--text)}
.index-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.index-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px}.index-card h2{font-size:20px;margin:0 0 8px}.index-card p{color:var(--muted)}
.long-strip{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px}.long-strip strong{color:var(--ink)}.long-strip p{color:var(--muted);margin:0}
.policy-list{display:grid;gap:14px}.policy-item{padding:20px}.policy-item h2{font-size:20px;margin:0 0 10px}.policy-item p:last-child{margin-bottom:0}
.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:18px;margin:0 0 8px}.faq-item p{margin:0;color:var(--text)}
.toolbox{position:fixed;top:0;right:0;bottom:0;width:min(420px,86vw);z-index:90;background:#f9fcff;border-left:1px solid var(--line2);box-shadow:-24px 0 48px rgba(16,38,58,.18);transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s}
.toolbox.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.toolbox-head{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:#fff}
.toolbox-brand{display:flex;align-items:center;gap:10px}.toolbox-brand img{height:30px;max-width:150px;object-fit:contain}.toolbox-brand span{display:grid;line-height:1.2}.toolbox-brand small{color:var(--muted);font-size:10px;letter-spacing:.08em}
.icon-button{min-height:44px;border:1px solid var(--line2);background:#fff;color:var(--steel);border-radius:10px;padding:0 12px;font-weight:800}
.toolbox-groups{height:calc(100% - 78px);overflow-y:auto;padding:14px 16px 36px}.toolbox-groups section{margin-bottom:20px}.toolbox-groups h2{font-size:14px;color:var(--steel);margin:0 0 8px;text-transform:uppercase;letter-spacing:.08em}.toolbox-groups a{display:grid;gap:2px;padding:12px;border-radius:11px;border:1px solid transparent}.toolbox-groups a:hover{background:#fff;border-color:var(--line)}.toolbox-groups a span{font-size:13px;color:var(--muted)}
.overlay{position:fixed;inset:0;z-index:80;background:rgba(16,38,58,.28);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.modal-open{overflow:hidden}
.search-layer{position:fixed;left:0;right:0;top:92px;z-index:88;visibility:hidden;pointer-events:none;transform:translateY(-12px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{width:min(900px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line2);border-radius:0 0 16px 16px;padding:22px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;gap:16px;align-items:start}.search-head h2{margin:5px 0 14px;font-size:22px}.search-look{height:50px;border:1px solid var(--line2);border-radius:12px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;color:var(--muted);background:var(--bg)}.search-caret{width:2px;height:20px;background:var(--steel)}.search-presets{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.search-presets a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--line);border-radius:10px;color:var(--steel);font-weight:750}
.site-footer{background:var(--ink);color:#C7D8E6;padding:36px 0 18px}.footer-inner{display:grid;grid-template-columns:1.1fr 2fr;gap:34px}.footer-brand{display:flex;align-items:center;gap:12px}.footer-logo{height:32px;max-width:160px;object-fit:contain}.footer-brand span{display:grid;line-height:1.2}.footer-brand small{font-size:11px;letter-spacing:.09em;color:#9DB7CB}.footer-brand-block p{margin-top:18px;color:#ABC1D1;max-width:440px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links h2{color:#fff;font-size:14px;margin:0 0 10px}.footer-links a{display:block;color:#C7D8E6;font-size:14px;padding:5px 0}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:16px;margin-top:24px;font-size:13px;color:#9FB6C8}
.mobile-bottom{display:none}
@media (max-width:860px){
  :root{--top:92px}.tab-rail{display:none}.page-main{padding-top:calc(var(--top) + 28px)}
  .three-grid,.tag-grid,.theme-grid,.shelf-list{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:1fr}.app-grid .media-slot.app-visual{min-height:280px}
  .footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}
  .search-layer{top:92px}
}
@media (max-width:640px){
  body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}
  .shell-inner,.hero,.section-block,.policy-block,.article-block{width:min(var(--max),calc(100% - 32px))}
  .viewport-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-logo{height:29px;max-width:118px}.brand-text{font-size:19px}.toolbox-trigger{min-width:auto;padding:0 12px}.app-entry{padding:0 11px;font-size:14px}
  .tag-grid,.three-grid,.directory-grid,.theme-grid,.shelf-list,.index-grid{grid-template-columns:1fr}
  .number-row{grid-template-columns:48px 1fr}.number-row>a,.number-row>.text-btn{grid-column:2}.chart-row{grid-template-columns:70px 1fr}.chart-row .chart-num{font-size:36px}
  .long-strip{grid-template-columns:1fr;gap:6px}.hero{padding-top:12px}.lead{font-size:16px}.section-head{align-items:start;flex-direction:column;gap:6px}
  .media-slot.banner{min-height:165px}.media-slot.column{height:195px}
  .search-layer{inset:0;top:0;background:var(--soft);padding:14px;overflow:auto}.search-card{width:100%;min-height:calc(100vh - 28px);border-radius:16px;margin:0;padding:18px}.search-presets{display:grid;grid-template-columns:repeat(2,1fr)}.search-presets a{justify-content:center}
  .mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:70;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line2);box-shadow:0 -10px 24px rgba(16,38,58,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:13px;font-weight:800;color:var(--muted)}.mobile-bottom a.is-active{background:var(--blue);color:#fff}
  .site-footer{padding-bottom:28px}.footer-links{grid-template-columns:repeat(2,1fr)}
}