:root{
--bg:#F5FAFE;--deep:#E7F2FA;--surface:#FFFFFF;--secondary:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--soft:#6E8899;--brand:#4AA3E0;--bright:#6BB8EC;--navy:#1B4A6E;--mist:#EAF5FC;--border:rgba(74,163,224,.16);--border-strong:rgba(74,163,224,.42);--shadow:0 12px 28px rgba(27,74,110,.08);--radius:12px;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}.lock-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.utility-line{position:fixed;top:0;left:0;right:0;height:22px;background:var(--navy);color:#fff;z-index:70;font-size:12px}.utility-inner,.masthead-inner,.tabbar-inner{max-width:var(--max);margin:auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 20px}.text-button,.drawer-button,.icon-button{border:0;background:transparent;color:inherit;cursor:pointer;min-height:44px;padding:0 12px}.utility-line .text-button{min-height:22px;height:22px;font-size:12px}.masthead{position:fixed;top:22px;left:0;right:0;height:60px;background:var(--surface);border-bottom:1px solid var(--border);z-index:69}.masthead-inner{position:relative}.brand-link,.app-link,.drawer-button{display:flex;align-items:center;justify-content:center;min-height:44px}.brand-link{min-width:72px;justify-content:flex-start}.app-link{min-width:80px;justify-content:flex-end;color:var(--navy);font-weight:700}.drawer-button{position:absolute;left:50%;transform:translateX(-50%);border:1px solid var(--border-strong);border-radius:999px;color:var(--navy);height:40px;min-height:40px;padding:0 20px;background:var(--surface)}.logo-slot{height:28px;min-width:42px;display:inline-flex;align-items:center}.logo-slot img{display:block;height:28px;max-width:150px;width:auto;object-fit:contain;object-position:center}.logo-slot img+.logo-fallback{display:none}.logo-fallback{font-weight:800;font-size:16px;color:var(--navy)}.tabbar{position:fixed;top:82px;left:0;right:0;height:40px;background:var(--mist);border-bottom:1px solid var(--border);z-index:68}.tabbar-inner{justify-content:center;gap:10px}.tabbar a{height:30px;min-width:92px;display:flex;align-items:center;justify-content:center;border-radius:999px;font-size:13px;color:var(--navy)}.tabbar a.active{background:var(--brand);color:#fff}.site-main{padding-top:146px;min-height:70vh}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.hero,.section{margin:0 auto 32px}.hero-card,.content-card,.feature-card,.article-card,.policy-card,.index-card,.timeline-card,.note-card,.app-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:22px}.page-kicker{font-size:13px;color:var(--brand);font-weight:800;letter-spacing:.08em;margin:0 0 4px}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 12px}.hero p,.page-hero p{margin:0;color:var(--muted)}h2{font-size:20px;line-height:1.35;color:var(--title);margin:0 0 12px}h3{font-size:16px;line-height:1.4;color:var(--title);margin:0 0 8px}p{margin:0 0 14px}.page-hero{max-width:var(--max);margin:0 auto 26px;padding:0 20px}.page-hero-inner{background:linear-gradient(180deg,var(--mist),var(--surface));border:1px solid var(--border);border-radius:var(--radius);padding:26px}.media-slot{width:100%;background:var(--mist);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;display:block;object-fit:contain;object-position:center}.banner-slot{height:260px}.grid-image{height:180px}.section-image{height:200px}.app-image{height:360px;max-width:520px;margin:0 auto}.icon-slot{width:48px;height:48px;border-radius:12px}.hero-copy{padding-top:18px}.lead{font-size:16px;color:var(--text);max-width:780px}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.btn{height:44px;min-width:124px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--border-strong)}.btn:hover,.tabbar a:hover,.mobile-bottom a:hover,.app-link:hover,.drawer a:hover,.footer-groups a:hover{filter:brightness(.97)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(74,163,224,.38);outline-offset:2px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{padding:14px}.feature-card .copy{padding:14px 4px 2px}.feature-card p{color:var(--muted)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:14px}.section-head p{margin:0;color:var(--soft);font-size:13px}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:stretch}.content-card,.article-card,.policy-card,.note-card,.app-card{padding:22px}.numbered-list{display:grid;gap:10px;margin-top:14px}.numbered-list a,.numbered-list .item{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;padding:12px;border-radius:10px;background:var(--mist);border:1px solid var(--border)}.numbered-list strong{color:var(--brand);font-size:18px}.shelf{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.shelf a,.shelf .shelf-item{display:block;padding:16px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}.shelf p{color:var(--muted);margin-bottom:0}.timeline{position:relative;margin-left:9px;padding-left:26px;border-left:2px solid var(--secondary)}.timeline-card{position:relative;padding:16px 18px;margin:0 0 14px}.timeline-card:before{content:"";position:absolute;left:-35px;top:23px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:3px solid var(--bg)}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--mist);color:var(--navy);font-size:12px;font-weight:700;border:1px solid var(--border)}.notes-grid,.cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.index-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.index-card{padding:18px}.index-card a{display:inline-flex;color:var(--navy);font-weight:800;margin-top:4px}.prose{max-width:860px}.prose p,.prose li{color:var(--text)}.prose ul{padding-left:20px}.callout{padding:16px 18px;background:var(--mist);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;margin:18px 0}.faq-list{display:grid;gap:14px}.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px}.faq-item h2{font-size:16px}.faq-item p{margin:0;color:var(--muted)}.site-footer{background:var(--navy);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.35);margin-top:48px;padding:34px 0 80px;font-size:13px}.footer-inner{max-width:var(--max);margin:auto;padding:0 20px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-brand div:last-child{display:flex;gap:8px;align-items:baseline}.footer-brand strong{font-size:16px}.footer-brand span{color:#E7F2FA}.footer-logo .logo-fallback{color:#fff}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 0;border-top:1px solid rgba(234,245,252,.2);border-bottom:1px solid rgba(234,245,252,.2)}.footer-groups section{display:flex;flex-direction:column;gap:7px}.footer-groups h2{font-size:13px;color:#fff;margin:0 0 4px}.footer-groups a{color:#E7F2FA}.footer-note{max-width:860px;color:#E7F2FA;margin:20px 0 8px}.copyright{color:#D7EAF6;margin:0}.overlay{position:fixed;inset:0;background:rgba(22,50,74,.38);z-index:80;opacity:0;pointer-events:none;transition:opacity .2s}.overlay.show{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:0;width:400px;max-width:86vw;height:100vh;background:var(--surface);z-index:90;transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:-18px 0 40px rgba(27,74,110,.16);display:flex;flex-direction:column}.drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:76px;padding:0 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--navy)}.icon-button{color:var(--navy);border:1px solid var(--border-strong);border-radius:10px;background:#fff}.drawer-scroll{overflow:auto;padding:16px 18px 28px}.drawer-scroll section{margin-bottom:20px}.drawer-scroll section h2{font-size:13px;color:var(--soft);margin-bottom:8px}.drawer a{display:block;padding:11px 12px;border-radius:10px}.drawer a:hover{background:var(--mist)}.drawer a strong{display:block;color:var(--title);font-size:14px}.drawer a span{display:block;color:var(--muted);font-size:12px}.search-panel{position:fixed;top:82px;left:0;right:0;z-index:89;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.2s}.search-panel.open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}.search-card{max-width:760px;margin:18px auto 0;padding:20px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{margin:0}.search-card label{display:block;color:var(--muted);margin:14px 0 8px}.search-card input{width:100%;height:44px;border:1px solid var(--border-strong);border-radius:10px;background:var(--bg);color:var(--title);padding:0 12px}.search-presets{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0}.search-presets a,.subtle-link{min-height:40px;padding:0 14px;border-radius:999px;display:inline-flex;align-items:center;border:1px solid var(--border);background:var(--mist);color:var(--navy);font-weight:700}.search-empty{color:var(--soft);font-size:13px}.mobile-bottom{display:none}.small{font-size:13px;color:var(--soft)}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--mist);border:1px solid var(--border);font-size:12px;color:var(--navy)}.reading-columns{columns:2;column-gap:30px}.reading-columns p{break-inside:avoid}.contact-choices{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-choices .policy-card{height:100%}
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@media(max-width:620px){.utility-inner,.masthead-inner,.wrap,.page-hero,.footer-inner{padding-left:16px;padding-right:16px}.grid-3,.split,.notes-grid,.cards-grid,.footer-groups,.index-grid,.shelf,.contact-choices{grid-template-columns:1fr}.hero-card,.content-card,.article-card,.policy-card,.note-card,.app-card,.page-hero-inner{padding:18px}.banner-slot{height:210px}.section-image{height:190px}.grid-image{height:170px}.app-image{height:320px}.section-head{align-items:start;flex-direction:column;gap:4px}.drawer-button{padding:0 16px}.masthead-inner{display:grid;grid-template-columns:1fr auto 1fr}.brand-link{justify-self:start}.drawer-button{position:static;transform:none;justify-self:center}.app-link{justify-self:end}.footer-brand div:last-child{flex-wrap:wrap}.hero h1,.page-hero h1{font-size:24px}.button-row{display:grid;grid-template-columns:1fr 1fr}.btn{min-width:0}.drawer{max-width:86vw}.site-footer{margin-top:34px}}