*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#000;color:#ddd;font:16px/1.75 -apple-system,BlinkMacSystemFont,"Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}body.panel-active{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:#fff}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #f7f7f7;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{color:#f7f7f7;font-size:clamp(28px,3vw,34px);line-height:1.3}h2{font-size:clamp(23px,2.5vw,29px);line-height:1.4;color:#f7f7f7}h3{font-size:19px;line-height:1.45;color:#f7f7f7}p{margin-bottom:1.1em;overflow-wrap:anywhere}.wrap{width:min(1240px,calc(100% - 48px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:30;background:#050505;border-bottom:1px solid rgba(255,255,255,.12)}.topbar{height:72px;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:23px;font-weight:750;white-space:nowrap}.brand-logo{width:auto;height:32px;max-width:110px;object-fit:contain}.brand-caption{display:flex;flex-direction:column;gap:0;color:#c7c7c7;line-height:1.4;font-size:12px;letter-spacing:.09em}.brand-caption small{color:#a5a5a5;font-size:11px;letter-spacing:0}.top-actions{display:flex;gap:7px;align-items:center;margin-left:auto}.nav-trigger,.top-app,.close-panel{display:inline-flex;min-height:44px;align-items:center;justify-content:center;background:transparent;color:#ddd;border:1px solid rgba(255,255,255,.2);border-radius:5px;padding:8px 16px;white-space:nowrap}.nav-trigger:hover,.top-app:hover,.close-panel:hover{background:#1a1a1a;color:#fff}.desktop-nav{border-top:1px solid rgba(255,255,255,.09)}.desktop-links{display:flex;gap:clamp(12px,2.5vw,36px);height:48px;align-items:center;white-space:nowrap}.desktop-links a{font-size:14px;height:100%;display:inline-flex;align-items:center;border-bottom:2px solid transparent}.desktop-links a[aria-current=page],.desktop-links a:hover{border-bottom-color:#c7c7c7;color:#fff}main{padding-top:34px;padding-bottom:70px}.eyebrow{font-size:12px;letter-spacing:.18em;color:#a5a5a5;text-transform:uppercase}.page-intro{border-bottom:1px solid rgba(255,255,255,.2);padding:16px 0 32px;max-width:950px}.intro-lead{max-width:800px;color:#c7c7c7;font-size:17px}.intro-links{display:flex;gap:22px;flex-wrap:wrap}.text-link{display:inline-flex;align-items:center;min-height:44px;color:#f7f7f7;border-bottom:1px solid #777;font-size:14px;font-weight:600}.text-link:hover{border-color:#fff}.page-body{padding-top:22px;max-width:1040px}.page-body.article-body{max-width:820px}.content-section{padding:27px 0 30px;border-bottom:1px solid rgba(255,255,255,.12)}.content-section p{max-width:860px}.content-section h2{margin-bottom:17px}.content-section .links{margin:8px 0 0}.related{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;align-items:center}.related h2{font-size:18px;margin:0 14px 0 0}.pill{border:1px solid rgba(255,255,255,.3);border-radius:5px;min-height:44px;padding:8px 18px;display:inline-flex;align-items:center}.pill:hover{background:#1a1a1a}figure{margin:0}figure img{display:block;width:100%;height:auto;max-width:100%;object-fit:contain;object-position:center;margin:auto}.interior-visual{max-width:720px;margin:12px 0 20px}.portrait-visual{max-width:340px}.home-hero{padding-top:0}.hero-visual{width:100%;margin-bottom:26px}.hero-copy{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}.hero-copy h1{margin-bottom:0}.hero-copy p{max-width:590px}.action-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.btn{min-height:44px;padding:9px 21px;display:inline-flex;align-items:center;justify-content:center;border-radius:5px;font-size:14px;font-weight:700}.btn-primary{color:#000;background:#f7f7f7;border:1px solid #f7f7f7}.btn-primary:hover{color:#000;background:#c7c7c7}.btn-ghost{color:#f7f7f7;border:1px solid rgba(255,255,255,.4)}.btn-ghost:hover{background:#1a1a1a}.home-section{padding:55px 0;border-top:1px solid rgba(255,255,255,.12)}.home-hero+.home-section{margin-top:60px}.section-heading{margin-bottom:22px}.section-heading h2{margin-bottom:0}.quick-grid,.four-topics,.status-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.quick-grid article,.four-topics article,.status-grid article{padding:21px;background:#0b0b0b;border:1px solid rgba(255,255,255,.12);border-radius:7px;min-width:0}.quick-grid article{min-height:168px}.quick-grid p,.four-topics p,.status-grid p{font-size:14px;color:#bcbcbc;margin:10px 0 0}.card-title{font-size:19px;font-weight:700;color:#fff}.feature-two{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:start}.feature-two>*{min-width:0}.wide-visual{max-width:900px;margin:0 auto 28px}.brief-list{background:#0b0b0b;padding:22px 28px;border:1px solid rgba(255,255,255,.12);border-radius:7px}.brief-list article+article{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12)}.brief-list h3{margin-bottom:7px}.brief-list p{font-size:14px;color:#c7c7c7}.topic-band{border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:22px;margin-bottom:12px;display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1fr);align-items:center;gap:30px}.topic-band.text-only{display:block;background:#0b0b0b}.band-visual{max-width:420px}.topic-band p{max-width:760px}.vertical-list article{padding:23px 0;border-top:1px solid rgba(255,255,255,.12);display:grid;grid-template-columns:180px minmax(0,1fr) 150px;gap:22px;align-items:start}.vertical-list article h3{margin:0}.vertical-list article p{margin:0}.creation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.creation-grid article{padding:24px;border:1px solid rgba(255,255,255,.12);background:#0b0b0b;border-radius:7px}.small-visual{max-width:400px;margin:0 0 20px}.view-label{display:inline-block;border:1px solid #c7c7c7;color:#fff;padding:4px 9px;font-size:13px}.status{color:#fff;display:inline-block;padding:2px 10px;border:1px solid rgba(255,255,255,.4);font-size:14px}.mobile-service{display:grid;grid-template-columns:minmax(0,.38fr) minmax(0,1fr);gap:50px;align-items:start}.app-visual{max-width:320px;justify-self:center}.app-icon{max-width:72px;margin:0 0 12px}.last-section{max-width:1000px}.last-section p{max-width:860px}.faq-list{max-width:960px}.faq-item{padding:25px 0;border-bottom:1px solid rgba(255,255,255,.12)}.faq-item h2{font-size:20px}.site-footer{background:#0b0b0b;border-top:1px solid rgba(255,255,255,.2);padding:45px 0 35px}.footer-brand{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.footer-brand strong{font-size:22px;color:#fff}.footer-brand span{font-size:12px;letter-spacing:.16em;color:#c7c7c7}.footer-brand p{flex-basis:100%;font-size:14px;color:#a5a5a5}.footer-groups{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;margin:30px 0}.footer-groups nav{display:flex;flex-direction:column;gap:8px}.footer-groups h2{font-size:15px;margin-bottom:4px}.footer-groups a{font-size:14px;color:#a5a5a5}.footer-groups a:hover{color:#fff}.footer-note,.copyright{font-size:13px;color:#a5a5a5;margin:7px 0}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.76);z-index:70}.overlay[hidden]{display:none}.panel{position:fixed;left:0;right:0;top:120px;z-index:80;background:#121212;border-bottom:1px solid rgba(255,255,255,.4);visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:opacity .16s,transform .16s,visibility .16s}.panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.panel-inner{max-height:min(70vh,750px);overflow-y:auto;overscroll-behavior:contain;padding-top:16px;padding-bottom:20px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.panel-head h2{margin:0;font-size:21px}.panel-brand{display:flex;gap:12px;align-items:center}.panel-brand h2{margin:0}.menu-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.menu-grid h3{font-size:16px;border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:9px}.menu-grid nav a{display:block;border-bottom:1px solid rgba(255,255,255,.08);padding:7px 0}.menu-grid nav a strong,.menu-grid nav a small{display:block}.menu-grid nav a strong{font-size:14px;color:#f7f7f7}.menu-grid nav a small{font-size:12px;color:#a5a5a5}.search-panel{max-width:100%;background:transparent;border:0;display:flex;justify-content:flex-end;padding:0 max(24px,calc((100vw - 1240px)/2))}.search-box{background:#121212;border:1px solid rgba(255,255,255,.35);padding:21px;max-width:450px;width:100%;box-shadow:0 15px 40px #000}.search-box label{display:block;font-size:13px;margin-bottom:8px}.search-box input{width:100%;min-height:44px;padding:8px 13px;border:1px solid #777;background:#050505;color:#fff;border-radius:5px}.search-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.search-links a{padding:8px 12px;border:1px solid rgba(255,255,255,.2);border-radius:4px;font-size:13px}.search-links a[hidden]{display:none}.search-tip{font-size:12px;color:#a5a5a5;margin:14px 0 0}.mobile-nav{display:none}@media(max-width:1100px){.desktop-links{gap:18px}.desktop-links a{font-size:13px}.desktop-links a:nth-child(n+7){display:none}.footer-groups{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:850px){.desktop-links a:nth-child(n+6){display:none}.quick-grid,.four-topics,.status-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.menu-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-service{gap:24px}.feature-two{gap:24px}.vertical-list article{grid-template-columns:140px minmax(0,1fr)}.vertical-list article .text-link{grid-column:2}.topic-band{grid-template-columns:1fr}.band-visual{max-width:100%;margin:auto}}@media(max-width:600px){.wrap{width:calc(100% - 32px)}.site-header .topbar{height:60px;gap:8px}.brand{font-size:20px;gap:5px}.brand-logo{height:28px;max-width:48px}.brand-caption,.desktop-nav,.desktop-word{display:none}.top-actions{gap:4px}.nav-trigger,.top-app{min-width:44px;padding:7px 8px;font-size:12px}.top-app{font-size:12px}main{padding-top:19px;padding-bottom:110px}.hero-copy,.feature-two,.creation-grid,.mobile-service{grid-template-columns:1fr;gap:18px}.home-section{padding:37px 0}.home-hero+.home-section{margin-top:38px}.quick-grid article,.four-topics article,.status-grid article{padding:15px}.quick-grid article{min-height:0}.vertical-list article{grid-template-columns:1fr;gap:8px}.vertical-list article .text-link{grid-column:1}.topic-band{padding:16px}.mobile-service .app-visual{max-width:min(240px,70vw)}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.footer-brand{align-items:center}.site-footer{padding-bottom:calc(80px + env(safe-area-inset-bottom))}.mobile-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:fixed;bottom:0;left:0;right:0;min-height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);z-index:35;background:#0b0b0b;border-top:1px solid rgba(255,255,255,.3)}.mobile-nav a,.mobile-nav button{display:flex;align-items:center;justify-content:center;min-height:56px;padding:3px;color:#c7c7c7;border:0;background:none;font-size:12px;white-space:nowrap}.mobile-nav a[aria-current=page]{color:#fff;border-top:2px solid #fff}.mobile-nav button{color:#fff}.panel{top:60px}.panel-inner{max-height:70vh}.menu-grid{grid-template-columns:1fr;gap:12px}.menu-grid h3{margin-bottom:3px}.menu-grid nav a{padding:6px 0}.search-panel{padding:0 16px}.search-box{max-width:none}.panel-head h2{font-size:17px}.page-intro{padding-bottom:24px}.page-body{padding-top:12px}.content-section{padding:22px 0}.interior-visual{margin-inline:auto}.portrait-visual{max-width:min(260px,75vw)}.hero-visual img{max-height:300px}.wide-visual{max-width:100%}}@media(max-width:350px){.brand{font-size:18px}.top-actions{gap:2px}.nav-trigger,.top-app{padding:7px 5px;min-width:42px}.quick-grid,.four-topics,.status-grid{grid-template-columns:1fr}.footer-groups{gap:12px}}