:root{--bg:#F3F6F9;--surface:#FFFFFF;--soft:#E8EEF5;--title:#0B1220;--text:#1E293B;--muted:#475569;--sub:#64748B;--blue:#2563EB;--blue-light:#60A5FA;--blue-dark:#1D4ED8;--lime:#65A30D;--slate:#334155;--border:rgba(37,99,235,.16);--shadow:0 14px 36px rgba(11,18,32,.08);--radius:18px;--header-h:136px}
*{box-sizing:border-box}html{scroll-behavior:smooth}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;line-height:1.72;overflow-x:hidden}body.layer-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}.shell{width:min(1180px,calc(100% - 32px));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:12px;top:-80px;z-index:100;background:#fff;color:var(--blue);padding:10px 16px;border-radius:999px}.skip-link:focus{top:8px}
.site-header{position:fixed;inset:0 0 auto;z-index:80}.status-bar{height:32px;background:var(--slate);color:#fff}.status-inner{height:32px;display:flex;align-items:center;justify-content:space-between;gap:12px}.status-brand{font-size:12px;font-weight:800;letter-spacing:.08em}.icon-text-button{border:0;background:transparent;color:#fff;min-height:32px;padding:0 4px;font-weight:700}.command-bar{height:60px;background:#fff;border-bottom:1px solid var(--border)}.command-inner{height:60px;display:grid;grid-template-columns:56px 1fr 112px;align-items:center}.square-menu{width:44px;height:44px;border:1px solid var(--border);background:var(--soft);border-radius:12px;color:var(--title);font-size:24px;display:grid;place-items:center}.brand-mark{justify-self:center;display:flex;align-items:center;justify-content:center;min-width:120px;height:44px;font-weight:900;color:var(--title);letter-spacing:.04em}.brand-mark img{max-height:32px;max-width:160px;object-fit:contain}.app-open{justify-self:end;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,var(--blue-light) 0%,var(--blue) 52%,var(--blue-dark) 100%);color:#fff;font-weight:800}.desktop-tabs{height:44px;background:#fff;border-bottom:1px solid var(--border)}.tab-inner{height:44px;display:grid;grid-template-columns:repeat(6,1fr);align-items:stretch}.tab-link{display:flex;align-items:center;justify-content:center;position:relative;color:var(--muted);font-size:14px;font-weight:700}.tab-link.is-current{color:var(--blue)}.tab-link.is-current:after{content:"";position:absolute;left:25%;right:25%;bottom:-1px;height:3px;background:var(--blue);border-radius:3px 3px 0 0}
.site-main{padding-top:calc(var(--header-h) + 24px)}.section{padding:28px 0}.section-tight{padding:18px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}h1,h2,h3{color:var(--title);line-height:1.22;margin-top:0}h1{font-size:clamp(28px,4vw,32px);margin-bottom:14px}h2{font-size:clamp(22px,3vw,27px)}h3{font-size:18px}.lead{font-size:17px;color:var(--muted);max-width:860px}.hero-card,.content-card,.text-panel,.feature-card,.policy-block,.faq-item,.timeline-card,.file-row,.index-row{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:var(--radius)}.hero-card{padding:clamp(22px,4vw,42px)}.hero-copy{max-width:820px}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.button-primary,.button-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:999px;font-weight:800;border:1px solid transparent}.button-primary{background:linear-gradient(135deg,var(--blue-light) 0%,var(--blue) 52%,var(--blue-dark) 100%);color:#fff}.button-secondary{background:#fff;border-color:rgba(37,99,235,.3);color:var(--blue)}.button-primary:hover,.button-secondary:hover,.button-primary:focus-visible,.button-secondary:focus-visible,.tab-link:focus-visible,.square-menu:focus-visible,.app-open:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(96,165,250,.45);outline-offset:2px}.media-slot{margin:22px 0 0;border-radius:18px;overflow:hidden;background:var(--soft);min-height:190px;max-height:340px;display:flex;align-items:center;justify-content:center}.media-slot img{width:100%;max-height:340px;object-fit:contain}.media-placeholder{color:var(--sub);font-weight:900;letter-spacing:.18em;aspect-ratio:16/7}.wide-media{max-height:360px}.wide-media img{max-height:360px}.small-media{min-height:140px;max-height:240px}.small-media img{max-height:240px}
.topic-strips{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic-strip{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px;display:grid;grid-template-columns:14px 1fr auto;gap:12px;align-items:start}.topic-dot{width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--blue)}.topic-strip p{margin:2px 0 0;color:var(--muted);font-size:14px}.topic-strip>a{color:var(--blue);font-weight:800;white-space:nowrap}.number-stack{display:grid;gap:14px}.number-item{display:grid;grid-template-columns:88px 1fr;gap:18px;padding:22px;background:#fff;border:1px solid var(--border);border-radius:18px}.number{font-size:38px;line-height:1;color:var(--blue);font-weight:900;letter-spacing:-.04em}.number-item p{margin:8px 0 0;color:var(--muted)}.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.card-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.content-card,.feature-card{padding:18px}.content-card p,.feature-card p{color:var(--muted)}.link-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.text-link{color:var(--blue);font-weight:800}.stacked-feature{display:grid;gap:16px}.feature-card.media-feature{display:grid;grid-template-columns:minmax(220px,.75fr) 1.25fr;gap:20px;align-items:center}.feature-card.media-feature .media-slot{margin:0}.file-list,.long-index,.policy-list,.faq-list,.timeline{display:grid;gap:12px}.file-row,.index-row{padding:16px 18px;display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:start}.file-row .file-code,.index-row .file-code{color:var(--blue);font-weight:900}.file-row p,.index-row p{margin:4px 0 0;color:var(--muted)}.attention-list{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.attention-item{padding:18px;background:#fff;border:1px solid var(--border);border-radius:18px}.attention-item strong{font-size:34px;color:var(--blue);line-height:1}.attention-item p{margin:8px 0 0;color:var(--muted)}.timeline{position:relative;padding-left:16px}.timeline:before{content:"";position:absolute;left:28px;top:10px;bottom:10px;width:2px;background:rgba(37,99,235,.22)}.timeline-card{position:relative;padding:18px 18px 18px 62px}.timeline-card:before{content:"";position:absolute;left:20px;top:23px;width:17px;height:17px;border-radius:50%;background:#fff;border:5px solid var(--blue)}.status-chip{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--soft);color:var(--blue-dark);font-size:12px;font-weight:900}.editor-note{border-left:4px solid var(--blue);background:#fff;padding:18px 20px;border-radius:0 16px 16px 0;color:var(--muted)}.product-panel{display:grid;grid-template-columns:minmax(240px,.8fr) 1.2fr;gap:24px;align-items:center}.product-copy{background:#fff;border:1px solid var(--border);border-radius:18px;padding:24px}.product-copy p{color:var(--muted)}.badge-row{display:flex;align-items:center;gap:14px;margin-top:18px}.badge-row img{max-width:64px;max-height:64px}.badge-placeholder{width:56px;height:56px;border-radius:16px;background:var(--soft);display:grid;place-items:center;color:var(--blue);font-weight:900}.policy-block{padding:22px}.policy-block p,.policy-block li{color:var(--muted)}.policy-block ul{margin-bottom:0}.callout{background:linear-gradient(135deg,#EFF6FF,#FFFFFF);border:1px solid rgba(37,99,235,.2);border-radius:18px;padding:22px}.faq-item{padding:20px}.faq-item h2{font-size:18px;margin-bottom:8px}.faq-item p{margin:0;color:var(--muted)}.contact-options{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-card{padding:20px;background:#fff;border:1px solid var(--border);border-radius:18px}.contact-card p{color:var(--muted)}
.site-footer{margin-top:48px;background:#0B1220;color:#D6E4FF;padding:38px 0 calc(80px + env(safe-area-inset-bottom))}.footer-brand-row{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:center;padding-bottom:28px;border-bottom:1px solid rgba(214,228,255,.16)}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{max-width:120px;max-height:30px;object-fit:contain}.footer-brand span{display:grid}.footer-brand small{color:#94A3B8}.footer-brand-row p{margin:0;color:#B8C6DE}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0}.footer-grid h2{font-size:15px;color:#fff}.footer-grid a{display:block;color:#C7D4E9;margin:8px 0;font-size:14px}.footer-grid a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#94A3B8;font-size:13px}
.page-mask{position:fixed;inset:0;background:rgba(11,18,32,.38);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease}.page-mask.is-active{opacity:1;visibility:visible;pointer-events:auto}.mosaic-menu{position:fixed;inset:0;z-index:100;background:var(--bg);overflow-y:auto;transform:translateY(-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.22s ease;padding-bottom:32px}.mosaic-menu.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}.mosaic-head{height:76px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:rgba(243,246,249,.96);backdrop-filter:blur(8px);z-index:3;border-bottom:1px solid var(--border)}.mosaic-brand{display:flex;align-items:center;gap:12px;font-weight:900}.mosaic-brand img{max-width:120px;max-height:28px}.close-button{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--blue);font-weight:800}.mosaic-groups{padding-top:22px}.mosaic-group{margin-bottom:28px}.mosaic-group h2{font-size:17px}.mosaic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.mosaic-grid a{min-height:118px;padding:16px;border-radius:16px;background:#fff;border:1px solid var(--border);display:flex;flex-direction:column;gap:8px}.mosaic-grid strong{color:var(--title)}.mosaic-grid span{color:var(--muted);font-size:14px}.search-layer{position:fixed;z-index:101;top:96px;left:50%;width:min(760px,calc(100% - 32px));transform:translate(-50%,-12px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.search-layer.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:#fff;border:1px solid var(--border);box-shadow:0 24px 60px rgba(11,18,32,.18);border-radius:20px;padding:20px}.search-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.search-box{display:block;margin-top:16px}.search-box input{width:100%;min-height:52px;border:1px solid rgba(37,99,235,.28);background:var(--bg);border-radius:14px;padding:0 16px;color:var(--title)}.search-presets{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border-radius:999px;background:var(--soft);color:var(--blue-dark);font-weight:800}.search-note{color:var(--sub);font-size:13px;margin-bottom:0}.mobile-bottom-nav{display:none}
@media(max-width:900px){:root{--header-h:92px}.desktop-tabs{display:none}.site-main{padding-top:calc(var(--header-h) + 18px)}.card-grid-3,.card-grid-4{grid-template-columns:repeat(2,1fr)}.attention-list{grid-template-columns:repeat(2,1fr)}.feature-card.media-feature,.product-panel{grid-template-columns:1fr}.footer-brand-row{grid-template-columns:1fr}.mosaic-grid{grid-template-columns:repeat(2,1fr)}.mobile-bottom-nav{position:fixed;z-index:70;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--border);backdrop-filter:blur(12px)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--muted);min-height:50px}.mobile-bottom-nav a.is-current{color:var(--blue)}.site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}.footer-grid{grid-template-columns:repeat(2,1fr)}.search-layer{top:0;inset-inline:0;width:auto;height:100dvh;transform:translateY(-8px);background:var(--bg);padding:16px}.search-layer.is-open{transform:none}.search-card{height:auto;margin-top:72px;box-shadow:none}}
@media(max-width:640px){.shell{width:min(100% - 32px,1180px)}.command-inner{grid-template-columns:52px 1fr 96px}.app-open{padding:0 13px;font-size:13px}.brand-mark{min-width:0}.hero-card{padding:22px 18px}.topic-strips,.card-grid-2,.card-grid-3,.card-grid-4,.contact-options{grid-template-columns:1fr}.topic-strip{grid-template-columns:14px 1fr}.topic-strip>a{grid-column:2}.number-item{grid-template-columns:58px 1fr;padding:18px}.number{font-size:30px}.file-row,.index-row{grid-template-columns:42px 1fr}.file-row>a,.index-row>a{grid-column:2}.attention-list{grid-template-columns:1fr}.mosaic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.mosaic-grid a{min-height:132px;padding:13px}.mosaic-grid span{font-size:13px;line-height:1.55}.footer-grid{grid-template-columns:repeat(2,1fr);gap:18px}.footer-bottom{flex-direction:column}.section{padding:22px 0}.section-head{align-items:flex-start;flex-direction:column}.media-slot{min-height:150px}.status-inner{font-size:12px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}