*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:0;background:#000;color:#ddd;font:16px/1.75 system-ui,-apple-system,"PingFang SC","Microsoft Yahei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#fff}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #f7f7f7;outline-offset:3px}img{display:block;max-width:100%;width:100%;height:auto;object-fit:contain;object-position:center}figure{margin:0}p{margin:0 0 1.15em;max-width:76ch}h1,h2,h3{line-height:1.3;margin:0 0 .65em;color:#f7f7f7;letter-spacing:.02em}h1{font-size:clamp(28px,3vw,34px)}h2{font-size:clamp(22px,2.35vw,28px)}h3{font-size:19px}.shell{width:min(1240px,calc(100% - 64px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:30;background:#050505;border-bottom:1px solid rgba(255,255,255,.12)}.brand-bar{height:72px;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;min-width:0}.brand-logo{width:auto;height:32px;max-width:100px;object-fit:contain}.brand-name{font-weight:750;color:#f7f7f7;font-size:22px}.brand-fallback{font-weight:750;font-size:21px;color:#f7f7f7}.brand-center{margin-inline:auto;display:flex;align-items:center;gap:14px;color:#a5a5a5;font-size:12px;letter-spacing:.13em}.brand-center strong{color:#f7f7f7;font-size:13px}.header-actions{display:flex;gap:8px;align-items:center}.top-button,.close-button{border:1px solid rgba(255,255,255,.26);background:transparent;color:#f7f7f7;border-radius:4px;min-height:44px;min-width:44px;padding:8px 14px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;font-size:14px}.top-button:hover,.close-button:hover{background:#1a1a1a}.desktop-nav{border-top:1px solid rgba(255,255,255,.12);height:48px}.nav-items{height:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;white-space:nowrap}.nav-link{font-size:14px;line-height:46px;border-bottom:2px solid transparent}.nav-link[aria-current="page"]{border-color:#f7f7f7;color:#fff}.site-main{padding-top:32px;padding-bottom:80px}.eyebrow{display:inline-block;color:#a5a5a5;font-size:12px;letter-spacing:.15em;text-transform:uppercase;margin-bottom:14px}.page-intro{padding:22px 0 34px;border-bottom:1px solid rgba(255,255,255,.12)}.page-intro p{max-width:850px;font-size:17px;color:#ddd}.section{padding:43px 0;border-bottom:1px solid rgba(255,255,255,.12)}.section>p{max-width:850px}.section-links{margin-top:20px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;border:1px solid #f7f7f7;background:#f7f7f7;color:#000;padding:9px 18px;font-size:14px;border-radius:3px}.button:hover{background:#ddd;color:#000}.button.ghost{background:transparent;color:#f7f7f7;border-color:rgba(255,255,255,.4)}.button.ghost:hover{background:#1a1a1a}.action-row,.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.text-link{color:#f7f7f7;text-decoration:underline;text-decoration-color:#777;text-underline-offset:5px;display:inline-block;padding:6px 0;min-height:38px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.cards.four{grid-template-columns:repeat(4,minmax(0,1fr))}.tile,.feature-card,.faq-item{min-width:0;background:#0b0b0b;border:1px solid rgba(255,255,255,.12);padding:24px;border-radius:5px}.tile p,.feature-card p{font-size:15px}.tile .eyebrow{margin-bottom:8px}.page-photo,.wide-photo,.news-photo,.cover-photo{margin:20px 0}.page-photo img,.wide-photo img,.news-photo img,.cover-photo img,.feature-photo img,.app-photo img{max-height:var(--maxh);width:auto;max-width:100%;height:auto}.page-photo img,.cover-photo img,.wide-photo img,.news-photo img{margin-inline:auto}.cover-photo{margin:0 0 25px}.cover-photo img{width:auto;max-width:100%}.home-cover{padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:50px;align-items:start}.hero-grid>p{margin:28px 0 0;font-size:17px}.news-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:46px}.short-list article{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12)}.short-list h3{font-size:17px}.short-list p{font-size:14px;color:#a5a5a5}.feature-row{display:grid;grid-template-columns:minmax(0,36%) minmax(0,1fr);gap:35px;align-items:center;margin:20px 0 34px}.feature-row.text-only{grid-template-columns:1fr;background:#121212;padding:28px}.feature-photo img{margin-inline:auto}.vertical-list article{display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.12);padding:24px 0}.vertical-list article div{max-width:880px}.two-cols,.opinion-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.opinion-grid{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr)}.opinion-grid>aside{border:1px solid rgba(255,255,255,.12);padding:24px;align-self:start}.opinion-grid .note{display:block;color:#c7c7c7;font-size:13px;margin-bottom:12px}.topic{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12)}.topic h3{font-size:16px}.topic p{font-size:14px}.status{display:inline-block;color:#fff;border:1px solid rgba(255,255,255,.4);font-size:13px;padding:1px 10px;margin-bottom:14px}.mobile-service{display:grid;grid-template-columns:minmax(0,34%) minmax(0,1fr);gap:40px;align-items:start}.app-photo img{margin-inline:auto}.small-icon{max-width:72px;margin-bottom:12px}.small-icon img{width:auto;max-width:72px;max-height:72px}.service-copy p{max-width:76ch}.related{margin-top:40px;padding:25px;border:1px solid rgba(255,255,255,.2);background:#0b0b0b}.related h2{font-size:21px}.faq-list{margin-top:30px;display:grid;gap:12px}.faq-item{padding:22px 26px}.faq-item h2{font-size:19px}.faq-item p{margin:0;max-width:920px}.site-footer{background:#050505;border-top:1px solid rgba(255,255,255,.12);padding:45px 0 20px}.footer-brand .brand{margin-right:18px}.brand-mark{color:#a5a5a5;font-size:12px;letter-spacing:.18em}.footer-brand p{color:#a5a5a5;font-size:13px;margin-top:13px}.footer-groups{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px;margin:32px 0}.footer-groups nav{display:flex;flex-direction:column;align-items:start;gap:7px}.footer-groups h2{font-size:15px;margin-bottom:7px}.footer-groups a{font-size:13px;color:#a5a5a5;padding:3px 0}.footer-groups a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;color:#a5a5a5;font-size:12px}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.78);z-index:50;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .15s}.overlay.is-open{visibility:visible;pointer-events:auto;opacity:1}.floating-panel{position:fixed;top:120px;left:0;right:0;z-index:60;background:#121212;box-shadow:0 20px 40px rgba(0,0,0,.7);visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-6px);transition:opacity .15s,transform .15s}.floating-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.panel-head{height:65px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.12)}.panel-brand{display:flex;align-items:center;gap:12px}.panel-brand strong{color:#f7f7f7}.panel-scroller{max-height:min(60vh,630px);overflow-y:auto;overscroll-behavior:contain;padding-block:20px 26px}.menu-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px}.menu-groups nav{min-width:0}.menu-groups h2{font-size:15px;color:#c7c7c7;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:11px}.menu-groups a{display:block;padding:9px 4px;border-bottom:1px solid rgba(255,255,255,.07)}.menu-groups a:hover{background:#1a1a1a}.menu-groups a strong{font-weight:600;display:block;font-size:14px;color:#f7f7f7}.menu-groups a span{display:block;font-size:12px;color:#a5a5a5;line-height:1.5}.search-panel{left:auto;right:max(32px,calc((100vw - 1240px)/2));width:min(410px,calc(100vw - 32px));padding:22px;border:1px solid rgba(255,255,255,.26)}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.search-head h2{font-size:20px;margin:0}.search-panel label{display:block;margin:20px 0 8px;font-size:14px}.search-panel input{display:block;width:100%;min-height:44px;padding:9px;background:#050505;color:#f7f7f7;border:1px solid rgba(255,255,255,.4);border-radius:3px}.search-hint{font-size:13px;color:#a5a5a5;margin:10px 0}.search-links{display:flex;flex-wrap:wrap;gap:8px;max-height:40vh;overflow:auto}.search-links a{font-size:13px;padding:7px 10px;border:1px solid rgba(255,255,255,.2);border-radius:3px}.search-links a[hidden]{display:none}.search-links a:hover{background:#1a1a1a}.mobile-bottom{display:none}@media(max-width:1100px){.brand-center span{display:none}.nav-items{gap:9px}.nav-link{font-size:13px}.cards.four{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:800px){.shell{width:calc(100% - 48px)}.brand-center,.desktop-nav{display:none}.brand-bar{height:60px}.floating-panel{top:60px}.brand-bar{justify-content:space-between}.header-actions{gap:5px}.top-button{padding:8px 10px}.menu-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.panel-scroller{max-height:calc(70dvh - 65px)}.hero-grid,.news-grid,.mobile-service{grid-template-columns:1fr;gap:20px}.hero-grid>p{margin:0}.feature-row{grid-template-columns:minmax(0,38%) minmax(0,1fr);gap:18px}.footer-groups{grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-bottom{display:grid;position:fixed;bottom:0;left:0;right:0;z-index:35;grid-template-columns:repeat(5,minmax(0,1fr));min-height:calc(56px + env(safe-area-inset-bottom));padding:0 4px env(safe-area-inset-bottom);background:#0b0b0b;border-top:1px solid rgba(255,255,255,.2)}.mobile-bottom a,.mobile-bottom button{border:0;background:transparent;color:#c7c7c7;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;min-height:56px;min-width:0;padding:4px}.mobile-bottom [aria-current="page"]{color:#fff;border-top:2px solid #fff}.site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}}@media(max-width:560px){.shell{width:calc(100% - 32px)}.site-main{padding-top:20px;padding-bottom:45px}.brand-bar{gap:6px}.brand-name{font-size:19px}.brand-logo{height:28px;max-width:52px}.top-button{font-size:12px;min-height:44px;padding:7px 6px}.top-app{min-width:44px}.top-app .app-word{display:none}.header-actions{gap:3px}.menu-groups{grid-template-columns:1fr;gap:15px}.panel-scroller{max-height:calc(70dvh - 65px)}.panel-head{width:calc(100% - 32px)}.search-panel{right:16px}.hero-grid,.news-grid,.feature-row,.two-cols,.opinion-grid,.mobile-service{grid-template-columns:1fr}.feature-row.text-only{padding:20px}.cards,.cards.four{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.tile,.feature-card{padding:14px}.tile h3,.feature-card h3{font-size:17px}.tile p{font-size:14px}.section{padding:32px 0}.vertical-list article{grid-template-columns:36px minmax(0,1fr);gap:10px}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.app-photo img{max-height:min(var(--maxh),360px)}.faq-item{padding:17px}.action-row{gap:8px}.button{padding:9px 13px}.brand-mark{display:block;margin-top:9px}}@media(max-width:355px){.brand{gap:4px}.brand-name{font-size:18px}.top-button{padding:6px 5px}.cards,.cards.four{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.overlay,.floating-panel{transition:none}}