:root{--bg:#EEF5FB;--deep:#E3EEF7;--card:#FFFFFF;--sub:#D7E8F4;--ink:#10263A;--text:#243848;--muted:#5A7388;--soft:#7E93A6;--blue:#3B9FE0;--light:#62B7EE;--steel:#1E6FB8;--ice:#A9D6F2;--mint:#2FA8A0;--border:rgba(30,111,184,.16);--strong:rgba(59,159,224,.38);--shadow:0 16px 40px rgba(16,38,58,.08);--max:1220px;--header:136px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:12px;top:-80px;z-index:200;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}.site-header{position:fixed;z-index:90;left:0;right:0;top:0}.frame-bar{height:22px;background:var(--steel);color:#fff;font-size:12px}.frame-inner,.viewport-inner,.tab-inner,.footer-inner{max-width:var(--max);margin:auto;padding:0 22px}.frame-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.text-control{border:0;background:transparent;color:#fff;padding:0 4px}.viewport-bar{height:70px;background:#fff;border-bottom:1px solid var(--border)}.viewport-inner{height:70px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{justify-self:start;display:flex;align-items:center;min-width:44px}.brand-logo{display:block;max-height:36px;max-width:210px;object-fit:contain}.brand-fallback{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:.02em}.toolbox-button,.app-link{min-height:44px;border-radius:10px;border:1px solid var(--strong);padding:9px 15px;font-weight:700}.toolbox-button{background:#fff;color:var(--steel);justify-self:center}.app-link{background:linear-gradient(135deg,var(--light),var(--blue) 48%,var(--steel));color:#fff;justify-self:end;display:flex;align-items:center}.tab-rail{height:44px;background:var(--ice);border-bottom:1px solid var(--border)}.tab-inner{height:44px;display:flex;align-items:center;gap:8px;overflow:hidden}.tab-inner a{padding:6px 11px;border-radius:8px;color:var(--ink);font-weight:700;white-space:nowrap}.tab-inner a.is-current{background:var(--blue);color:#fff}.site-main{padding-top:calc(var(--header) + 28px);min-height:70vh}.page-shell{max-width:var(--max);margin:0 auto;padding:0 22px 72px}.hero-slot{width:100%;max-height:300px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#fff,var(--sub));border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}.hero-slot img{width:100%;max-height:300px;object-fit:contain;object-position:center}.placeholder-hero{min-height:220px;padding:28px;color:var(--steel);font-size:30px;font-weight:800}.eyebrow{margin:26px 0 4px;color:var(--steel);font-size:13px;font-weight:800;letter-spacing:.12em}.page-title{font-size:clamp(28px,4vw,32px);line-height:1.25;color:var(--ink);margin:0 0 12px}.lead{max-width:900px;margin:0;color:var(--muted);font-size:17px}.hero-actions,.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.primary-button,.secondary-button{min-height:44px;padding:9px 16px;border-radius:10px;display:inline-flex;align-items:center;font-weight:800}.primary-button{background:linear-gradient(135deg,var(--light),var(--blue) 48%,var(--steel));color:#fff}.secondary-button{background:#fff;color:var(--steel);border:1px solid var(--strong)}.section{margin-top:34px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:14px}.section h2{margin:0;color:var(--ink);font-size:23px}.section-intro{max-width:760px;color:var(--muted);margin:8px 0 0}.grid-2,.grid-3,.grid-4,.grid-6{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-6{grid-template-columns:repeat(3,minmax(0,1fr))}.card,.panel,.clause,.faq-item,.timeline-item,.shelf-item,.number-item{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.card,.panel,.clause{padding:20px}.card h3,.panel h3,.clause h3{margin:0 0 8px;color:var(--ink);font-size:18px}.card p,.panel p,.clause p{margin:0;color:var(--muted)}.card a.more{display:inline-flex;margin-top:12px;color:var(--steel);font-weight:800}.chip{display:inline-block;padding:3px 8px;border-radius:7px;background:var(--ice);color:var(--ink);font-size:12px;font-weight:800}.chip.mint{background:rgba(47,168,160,.14);color:#176d68}.media-card{overflow:hidden;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.media-slot{height:210px;background:var(--deep);display:flex;align-items:center;justify-content:center}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-card .copy{padding:18px}.media-card h3{margin:0 0 8px;color:var(--ink)}.media-card p{margin:0;color:var(--muted)}.number-list{display:grid;gap:12px}.number-item{padding:18px;display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start}.number{font-size:34px;font-weight:900;line-height:1;color:var(--steel)}.number-item h3{margin:0 0 5px;color:var(--ink)}.number-item p{margin:0;color:var(--muted)}.theme-tile{min-height:150px;padding:18px;border-radius:14px;background:var(--ice);border:1px solid var(--border)}.theme-tile:nth-child(2n){background:rgba(47,168,160,.12)}.theme-tile h3{margin:0 0 8px;color:var(--ink)}.theme-tile p{margin:0 0 10px;color:var(--text)}.theme-tile a{font-weight:800;color:var(--steel)}.shelf-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.shelf-item{padding:18px;border-left:4px solid var(--blue)}.shelf-item h3{margin:0 0 6px;color:var(--ink)}.shelf-item p{margin:0;color:var(--muted)}.timeline{position:relative;padding-left:24px}.timeline:before{content:"";position:absolute;left:7px;top:4px;bottom:4px;width:2px;background:var(--ice)}.timeline-item{position:relative;margin-bottom:14px;padding:18px}.timeline-item:before{content:"";position:absolute;left:-24px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--steel);box-shadow:0 0 0 4px var(--bg)}.status{display:inline-block;padding:3px 8px;border-radius:7px;background:var(--deep);color:var(--steel);font-size:12px;font-weight:800}.article-flow{background:#fff;border:1px solid var(--border);border-radius:16px;padding:clamp(20px,4vw,34px);box-shadow:var(--shadow)}.article-flow h2{margin-top:28px}.article-flow h2:first-child{margin-top:0}.article-flow p{margin:10px 0;color:var(--text)}.article-flow .editor-note{border-left:4px solid var(--blue);background:var(--deep);padding:14px 16px;border-radius:10px}.faq-list{display:grid;gap:12px}.faq-item{padding:20px}.faq-item h2,.faq-item h3{margin:0 0 8px;color:var(--ink);font-size:18px}.faq-item p{margin:0;color:var(--text)}.clause-list{display:grid;gap:14px}.image-inline{max-height:240px;object-fit:contain;width:100%;background:var(--deep);border-radius:14px;border:1px solid var(--border)}.app-layout{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:24px;align-items:center}.app-visual{background:#fff;border:1px solid var(--border);border-radius:16px;display:flex;justify-content:center;padding:20px;box-shadow:var(--shadow)}.app-visual img{max-width:100%;max-height:420px;object-fit:contain}.icon-row{display:flex;align-items:center;gap:12px}.icon-row img{width:64px;height:64px;object-fit:contain}.drawer{position:fixed;z-index:120;right:0;top:0;bottom:0;width:min(420px,86vw);background:#fff;border-left:1px solid var(--border);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s;box-shadow:-20px 0 50px rgba(16,38,58,.14);display:flex;flex-direction:column}.drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{max-height:32px;max-width:150px;object-fit:contain}.drawer-brand span{display:flex;flex-direction:column}.drawer-brand small{color:var(--soft)}.close-button{min-height:44px;border:1px solid var(--border);background:#fff;color:var(--steel);border-radius:10px;padding:8px 12px}.drawer-scroll{overflow:auto;padding:16px}.drawer-group{margin-bottom:20px}.drawer-group h2{font-size:14px;color:var(--soft);margin:0 0 8px}.drawer-item{display:block;padding:12px;border-radius:10px}.drawer-item:hover,.drawer-item:focus-visible{background:var(--deep)}.drawer-item span{display:block;color:var(--ink);font-weight:800}.drawer-item small{display:block;color:var(--muted);line-height:1.5}.site-overlay{position:fixed;z-index:110;inset:0;background:rgba(16,38,58,.34);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.search-layer{position:fixed;z-index:121;left:0;right:0;top:92px;visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{max-width:900px;margin:14px auto;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;padding:22px}.search-head{display:flex;justify-content:space-between;gap:20px}.search-head p{margin:4px 0 0;color:var(--muted)}.search-appearance{display:block;margin-top:18px}.search-appearance span{display:block;font-weight:800;color:var(--ink);margin-bottom:6px}.search-appearance input{width:100%;min-height:46px;border:1px solid var(--strong);border-radius:10px;padding:10px 12px;color:var(--ink);background:#fff}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.search-presets a{padding:8px 11px;border-radius:8px;background:var(--deep);color:var(--steel);font-weight:700}.site-footer{background:var(--ink);color:#C7D8E6}.footer-inner{padding-top:42px;padding-bottom:84px}.footer-brand-row{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;border-bottom:1px solid rgba(199,216,230,.15);padding-bottom:24px}.footer-brand{display:flex;gap:10px;align-items:center}.footer-brand img{max-height:34px;max-width:160px;object-fit:contain;filter:brightness(0) invert(1)}.footer-brand span{display:flex;flex-direction:column}.footer-brand-row p{max-width:660px;margin:0;color:#AFC2D0}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:26px 0}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;padding:3px 0;color:#C7D8E6}.footer-bottom{padding-top:16px;border-top:1px solid rgba(199,216,230,.15);color:#9FB5C5;font-size:14px}.mobile-bottom{display:none}.primary-button:hover,.primary-button:focus-visible,.secondary-button:hover,.secondary-button:focus-visible,.toolbox-button:hover,.toolbox-button:focus-visible,.app-link:hover,.app-link:focus-visible{outline:3px solid rgba(59,159,224,.24);outline-offset:2px}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3,.grid-6,.shelf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.app-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){:root{--header:92px}.frame-inner,.viewport-inner,.tab-inner,.footer-inner{padding-left:16px;padding-right:16px}.frame-bar{height:22px}.viewport-bar,.viewport-inner{height:70px}.viewport-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{max-height:32px;max-width:128px}.brand-fallback{font-size:20px}.toolbox-button,.app-link{padding:8px 10px;min-width:70px}.tab-rail{display:none}.site-main{padding-top:calc(var(--header) + 22px)}.page-shell{padding-left:16px;padding-right:16px;padding-bottom:92px}.grid-2,.grid-3,.grid-4,.grid-6,.shelf-grid{grid-template-columns:1fr}.number-item{grid-template-columns:56px 1fr}.hero-slot{max-height:280px}.media-slot{height:190px}.search-layer{top:22px;bottom:0;background:var(--ice)}.search-card{height:100%;margin:0;border-radius:0;border:0;box-shadow:none;background:var(--ice);padding:24px 16px}.search-appearance input{background:#fff}.footer-brand-row{display:block}.footer-brand-row p{margin-top:16px}.mobile-bottom{position:fixed;z-index:80;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(16,38,58,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:50px;color:var(--steel);font-weight:800}.mobile-bottom a.is-current{background:var(--blue);color:#fff}.footer-inner{padding-bottom:calc(80px + env(safe-area-inset-bottom))}}

/* 内页差异化布局 */
.layout-manual>.section:not(:first-of-type) .article-flow{border-left:4px solid var(--steel);box-shadow:none}
.layout-glance>.section:not(:first-of-type){display:grid;grid-template-columns:190px 1fr;gap:18px;align-items:start}
.layout-glance>.section:not(:first-of-type) .section-head{margin:0;padding:18px;background:var(--steel);border-radius:14px;color:#fff;min-height:100%}
.layout-glance>.section:not(:first-of-type) .section-head h2{color:#fff;font-size:26px}
.layout-glance>.section:not(:first-of-type) .article-flow{box-shadow:none}
.layout-cast>.section:not(:first-of-type){display:grid;grid-template-columns:minmax(180px,.55fr) minmax(0,1.45fr);gap:16px;align-items:start}
.layout-cast>.section:not(:first-of-type) .section-head{padding:18px;background:var(--deep);border-radius:14px;min-height:100%;align-items:start}
.layout-screen>.section:first-of-type{margin-top:24px}.layout-screen>.section:not(:first-of-type) .article-flow{border-top:4px solid var(--light)}
.layout-clip>.section:not(:first-of-type) .article-flow{box-shadow:none;border-style:dashed}
.layout-serial>.section:not(:first-of-type) .article-flow{background:linear-gradient(180deg,#fff,var(--bg));box-shadow:none}
.layout-craft>.section:not(:first-of-type){display:grid;grid-template-columns:220px 1fr;gap:0}.layout-craft>.section:not(:first-of-type) .section-head{padding:20px;background:var(--steel);border-radius:14px 0 0 14px;margin:0;align-items:start}.layout-craft>.section:not(:first-of-type) .section-head h2{color:#fff}.layout-craft>.section:not(:first-of-type) .article-flow{border-radius:0 14px 14px 0;box-shadow:none}
.layout-theme>.section:not(:first-of-type) .article-flow{background:var(--ice);box-shadow:none}.layout-theme>.section:nth-of-type(2n+1) .article-flow{background:rgba(47,168,160,.12)}
.layout-shelf>.section:not(:first-of-type) .article-flow{border-left:6px solid var(--blue);box-shadow:none}
.layout-chart>.section:not(:first-of-type){display:grid;grid-template-columns:210px 1fr;gap:18px;align-items:stretch}.layout-chart>.section:not(:first-of-type) .section-head{margin:0;background:var(--steel);padding:20px;border-radius:14px;align-items:center}.layout-chart>.section:not(:first-of-type) .section-head h2{color:#fff;font-size:27px}.layout-chart>.section:not(:first-of-type) .article-flow{box-shadow:none}
.layout-plan{position:relative}.layout-plan>.section:not(:first-of-type){position:relative;margin-left:26px}.layout-plan>.section:not(:first-of-type):before{content:"";position:absolute;left:-24px;top:18px;bottom:-36px;width:2px;background:var(--ice)}.layout-plan>.section:not(:first-of-type):after{content:"";position:absolute;left:-30px;top:20px;width:14px;height:14px;border-radius:50%;background:var(--steel);box-shadow:0 0 0 5px var(--bg)}.layout-plan>.section:last-of-type:before{bottom:calc(100% - 30px)}.layout-plan>.section:not(:first-of-type) .article-flow{box-shadow:none}
.layout-lab>.section:not(:first-of-type) .article-flow{border-top:5px solid var(--mint);box-shadow:none}
.layout-note .article-flow{max-width:900px;margin-left:auto;margin-right:auto}.layout-note>.section:not(:first-of-type) .section-head{max-width:900px;margin-left:auto;margin-right:auto}
.layout-explore>.section:not(:first-of-type){display:grid;grid-template-columns:230px 1fr;gap:18px}.layout-explore>.section:not(:first-of-type) .section-head{padding:18px;background:var(--deep);border-radius:14px;align-items:start;margin:0}
.layout-clauses>.section:not(:first-of-type) .article-flow{box-shadow:none;border-left:4px solid var(--steel)}
.layout-help>.section:not(:first-of-type) .article-flow,.layout-contact>.section:not(:first-of-type) .article-flow{box-shadow:none}
.layout-about>.section:not(:first-of-type) .article-flow{background:linear-gradient(135deg,#fff,var(--deep));box-shadow:none}
@media(max-width:720px){.layout-glance>.section:not(:first-of-type),.layout-cast>.section:not(:first-of-type),.layout-craft>.section:not(:first-of-type),.layout-chart>.section:not(:first-of-type),.layout-explore>.section:not(:first-of-type){grid-template-columns:1fr}.layout-craft>.section:not(:first-of-type) .section-head{border-radius:14px 14px 0 0}.layout-craft>.section:not(:first-of-type) .article-flow{border-radius:0 0 14px 14px}.layout-glance>.section:not(:first-of-type) .section-head,.layout-chart>.section:not(:first-of-type) .section-head{min-height:auto}}

.image-placeholder{min-height:210px;width:100%;display:flex;align-items:center;justify-content:center;background:var(--deep);border:1px solid var(--border);border-radius:14px;color:var(--steel);font-weight:800;text-align:center;padding:20px}.media-slot .image-placeholder{height:100%;min-height:0;border:0;border-radius:0}.icon-placeholder{width:64px;min-width:64px;height:64px;min-height:64px;padding:6px;font-size:11px;border-radius:12px}.app-placeholder{min-height:360px}.hero-slot{min-height:220px}