:root{--bg:#F4FAFC;--surface:#fff;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--subtle:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--footer:#0E3A46;--radius:16px;--max:1200px;--header:72px}
*{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;font-size:16px;line-height:1.8;overflow-x:hidden}a{color:var(--deep);text-decoration:none}a:hover{color:var(--brand)}button,input{font:inherit}img{display:block;width:100%;height:auto;max-width:100%;object-fit:contain;object-position:center}.skip-link{position:fixed;left:12px;top:-70px;z-index:9999;background:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}.site-header{position:fixed;z-index:1000;top:0;left:0;right:0;height:var(--header);background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.header-inner{width:min(var(--max),calc(100% - 32px));height:100%;margin:auto;display:grid;grid-template-columns:210px 1fr auto;align-items:center;gap:20px}.brand{display:flex;align-items:center;min-width:0}.brand-logo{width:auto;height:34px;max-width:190px}.brand-text{font-weight:800;color:var(--title);font-size:22px}.main-nav{display:flex;justify-content:center;align-items:center;gap:clamp(14px,2vw,30px);white-space:nowrap}.main-nav a{position:relative;color:var(--text);font-weight:650;padding:22px 0 20px}.main-nav a.active{color:var(--brand)}.main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:13px;height:3px;border-radius:2px;background:var(--brand)}.header-actions{display:flex;align-items:center;gap:8px}.icon-button,.close-button,.app-link{min-height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 13px;color:var(--deep);cursor:pointer}.app-link{display:inline-flex;align-items:center}.icon-button:hover,.close-button:hover,.app-link:hover{background:var(--pale);color:var(--deep)}:focus-visible{outline:3px solid rgba(43,179,196,.35);outline-offset:2px}.site-main{padding-top:var(--header);min-height:70vh}.context-wrap{width:min(var(--max),calc(100% - 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50vw);margin-right:calc(50% - 50vw);padding-left:max(16px,calc((100vw - var(--max))/2));padding-right:max(16px,calc((100vw - var(--max))/2))}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}.section h2{font-size:clamp(23px,3vw,30px);line-height:1.35;color:var(--title);margin:0}.section-head p{max-width:640px;color:var(--muted);margin:0}.magazine-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}.stack{display:grid;gap:20px}.feature,.story,.note-box,.index-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.feature,.story{overflow:hidden}.feature-body,.story-body,.note-box,.index-card{padding:22px}.feature h3,.story h3,.index-card h3{color:var(--title);margin:0 0 10px;font-size:21px}.feature p,.story p,.index-card p{margin:0;color:var(--muted)}.feature-media,.story-media{background:var(--soft);padding:12px}.feature-media img,.story-media img{max-height:300px}.editorial-split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}.editorial-split.reverse .media-col{order:2}.media-col{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.media-col img{max-height:360px}.text-col h3{font-size:26px;color:var(--title);margin:0 0 12px}.text-col p{color:var(--muted)}.link-list{display:grid;gap:10px;margin-top:18px}.link-list a{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-weight:650}.link-list a span{color:var(--subtle);font-weight:400}.four-grid,.three-grid,.two-grid{display:grid;gap:20px}.four-grid{grid-template-columns:repeat(4,1fr)}.three-grid{grid-template-columns:repeat(3,1fr)}.two-grid{grid-template-columns:repeat(2,1fr)}.plain-list{margin:0;padding:0;list-style:none}.plain-list li{padding:13px 0;border-bottom:1px solid var(--line)}.plain-list strong{display:block;color:var(--title)}.number-list{counter-reset:item;display:grid;gap:18px}.number-item{display:grid;grid-template-columns:54px 1fr;gap:14px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px}.number-item:before{counter-increment:item;content:counter(item,decimal-leading-zero);display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--pale);color:var(--deep);font-weight:800}.number-item h3{margin:0 0 6px;color:var(--title)}.number-item p{margin:0;color:var(--muted)}.article-flow{max-width:860px}.article-flow h2{margin-top:42px}.article-flow h3{color:var(--title);margin-top:28px}.article-flow p{margin:14px 0}.callout{border-left:4px solid var(--brand);background:var(--soft);padding:18px 20px;margin:24px 0;border-radius:0 12px 12px 0}.timeline{display:grid;gap:0}.timeline-item{position:relative;padding:8px 0 30px 38px;border-left:2px solid var(--line);margin-left:12px}.timeline-item:before{content:"";position:absolute;left:-7px;top:14px;width:12px;height:12px;border-radius:50%;background:var(--brand)}.timeline-item h3{margin:0 0 8px;color:var(--title)}.gallery-flow{display:grid;gap:32px}.gallery-entry{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);gap:28px;align-items:center;padding-bottom:32px;border-bottom:1px solid var(--line)}.gallery-entry:nth-child(even) .gallery-media{order:2}.gallery-media{background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px}.gallery-media img{max-height:340px}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.step-num{display:inline-flex;width:36px;height:36px;border-radius:50%;align-items:center;justify-content:center;background:var(--pale);color:var(--deep);font-weight:800}.step h3{color:var(--title);font-size:18px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:12px}.faq-list summary{cursor:pointer;color:var(--title);font-weight:750;padding:17px 0}.faq-list p{padding:0 0 18px;margin:0;color:var(--muted)}.service-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.service-nav a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;font-weight:700}.site-footer{background:var(--footer);color:#D4E8EC}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:auto;padding:54px 0 calc(40px + env(safe-area-inset-bottom))}.footer-brand{display:grid;grid-template-columns:260px 1fr;gap:34px;align-items:start;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.14)}.footer-logo-link{display:flex;align-items:center;gap:13px;color:#fff}.footer-logo-link:hover{color:#fff}.footer-logo{width:auto;height:32px;max-width:150px;filter:brightness(0) invert(1)}.footer-logo-link span{display:flex;flex-direction:column}.footer-logo-link small{color:#A9CCD3}.footer-brand p{margin:0;color:#BCD7DD;max-width:650px}.footer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;padding:30px 0}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;color:#BCD7DD;padding:4px 0;font-size:14px}.footer-grid a:hover{color:#fff}.footer-note,.copyright{padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#A9CCD3;font-size:14px}.copyright{border-top:0;padding-top:8px}.drawer-shell,.search-shell{position:fixed;inset:0;z-index:1500;visibility:hidden;pointer-events:none}.drawer-shell.is-open,.search-shell.is-open{visibility:visible;pointer-events:auto}.overlay{position:absolute;inset:0;background:rgba(9,39,47,.46)}.drawer{position:absolute;right:0;top:0;bottom:0;width:min(440px,90vw);background:#fff;padding:22px;overflow-y:auto;transform:translateX(100%);transition:transform .25s ease}.drawer-shell.is-open .drawer{transform:translateX(0)}.drawer-head,.search-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.drawer-brand img{width:auto;height:32px;max-width:170px}.drawer-groups{padding:18px 0}.drawer-groups section{padding:18px 0;border-top:1px solid var(--line)}.drawer-groups h2{font-size:17px;color:var(--title);margin:0 0 8px}.drawer-groups a{display:block;padding:10px 0}.drawer-groups strong{display:block;color:var(--deep)}.drawer-groups span{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:2px}.search-panel{position:absolute;top:var(--header);left:50%;transform:translateX(-50%) translateY(-12px);width:min(900px,calc(100% - 32px));background:#fff;border-radius:0 0 18px 18px;padding:24px;box-shadow:var(--shadow);opacity:0;transition:.2s ease}.search-shell.is-open .search-panel{opacity:1;transform:translateX(-50%) translateY(0)}.search-head h2{margin:0;color:var(--title)}.search-label{display:block;color:var(--muted);margin:18px 0 8px}.search-panel input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:10px;padding:10px 14px;color:var(--title)}.search-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}.search-links a{padding:12px 14px;background:var(--soft);border-radius:10px;font-weight:650}.search-empty{color:var(--muted)}.overlay-open{overflow:hidden}.mobile-bottom{display:none}.cover-image{background:var(--soft);padding:14px;border-radius:18px;margin-bottom:28px}.cover-image img{max-height:420px}.app-visual{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}.app-shot{width:auto!important;max-height:440px!important;max-width:100%!important}.app-icon{width:64px!important;height:64px!important}.mini-index{display:flex;flex-wrap:wrap;gap:10px}.mini-index a{padding:8px 12px;background:var(--pale);border-radius:9px}.page-intro{padding:28px 0 18px}.page-intro .lead{margin-bottom:0}.quote-line{font-size:22px;line-height:1.6;color:var(--title);border-left:4px solid var(--brand);padding-left:20px}.muted{color:var(--muted)}
@media(max-width:980px){.header-inner{grid-template-columns:170px 1fr auto}.main-nav{gap:12px;font-size:14px}.four-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){:root{--header:64px}.header-inner{grid-template-columns:1fr auto;gap:10px}.main-nav,.desktop-only{display:none}.brand-logo{height:30px;max-width:150px}.site-main{padding-bottom:72px}.hero{grid-template-columns:1fr;gap:24px;padding:28px 0 40px}.hero-media{order:-1}.magazine-grid,.editorial-split,.two-grid,.gallery-entry{grid-template-columns:1fr}.editorial-split.reverse .media-col,.gallery-entry:nth-child(even) .gallery-media{order:0}.three-grid,.service-nav{grid-template-columns:1fr}.search-links{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.mobile-bottom{position:fixed;z-index:900;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);min-height:52px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:52px;color:var(--muted);font-size:13px}.mobile-bottom a.active{color:#fff;background:var(--brand)}.site-footer{padding-bottom:52px}.section{padding:44px 0}.page-shell{padding-bottom:52px}.steps{grid-template-columns:1fr}.gallery-entry{gap:18px}}
@media(max-width:560px){.header-inner{width:calc(100% - 24px)}.header-actions{gap:5px}.icon-button{padding:8px 10px}.brand-logo{max-width:120px;height:28px}.page-shell,.context-wrap,.footer-inner{width:calc(100% - 32px)}.hero h1,.page-title{font-size:29px}.section-head{display:block}.section-head p{margin-top:10px}.four-grid{grid-template-columns:1fr}.search-panel{top:var(--header);width:calc(100% - 20px);padding:18px}.search-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:20px 14px}.number-item{grid-template-columns:44px 1fr;padding:16px}.section-soft{padding-left:16px;padding-right:16px}.button-row .btn{flex:1 1 auto}}