*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#000;color:#ddd;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.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}img{display:block;max-width:100%;height:auto}::selection{background:#fff;color:#000}.wrap{width:min(1320px,calc(100% - 48px));margin:0 auto}.mobile-only{display:none!important}.skip-link{position:fixed;left:12px;top:-80px;z-index:300;background:#fff;color:#000;padding:10px 14px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:100;background:#000}.topbar{border-bottom:1px solid rgba(255,255,255,.12);font-size:12px;color:#a5a5a5}.topbar-inner{height:34px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}.topbar-brand{white-space:nowrap}.topbar-links{display:flex;gap:24px}.topbar-links a:hover,.topbar-tools a:hover{color:#fff}.topbar-tools{display:flex;justify-content:flex-end;align-items:center;gap:18px}.text-button,.menu-button,.more-button,.icon-button{border:0;background:transparent;cursor:pointer}.text-button{padding:6px 0;color:#c7c7c7}.brandbar{background:#050505;border-bottom:1px solid rgba(255,255,255,.12)}.brandbar-inner{min-height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}.brand-side{display:flex;align-items:center;gap:18px;min-width:0}.brand-side-right{justify-content:flex-end}.menu-button{height:44px;display:flex;align-items:center;gap:9px;padding:0 12px;border:1px solid rgba(255,255,255,.2);border-radius:8px}.menu-button:hover{border-color:rgba(255,255,255,.45);background:#121212}.current-channel{font-size:13px;color:#a5a5a5}.brand-logo{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:168px;text-align:center}.brand-logo img{max-width:150px;max-height:48px;object-fit:contain}.brand-cn{font-size:23px;font-weight:800;letter-spacing:.24em;margin-left:.24em;color:#fff;line-height:1.05}.brand-en{font-size:9px;letter-spacing:.22em;color:#a5a5a5;margin-top:6px}.nav-action{min-height:44px;display:inline-flex;align-items:center;padding:0 16px;border:1px solid rgba(255,255,255,.45);border-radius:8px;font-size:13px;white-space:nowrap}.nav-action-light{background:#fff;color:#000;border-color:#fff}.channelbar{height:48px;background:#000;border-bottom:1px solid rgba(255,255,255,.12)}.channelbar-inner{height:100%;display:flex;align-items:stretch}.channel-scroll{display:flex;align-items:stretch;gap:4px;flex:1;min-width:0;overflow:hidden}.channel-scroll a,.more-button{position:relative;display:flex;align-items:center;justify-content:center;padding:0 15px;font-size:13px;color:#a5a5a5;white-space:nowrap;min-height:47px}.channel-scroll a:hover,.more-button:hover{color:#fff}.channel-scroll a.is-active{color:#fff}.channel-scroll a.is-active:after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;background:#fff}.more-wrap{position:relative;flex:0 0 auto}.more-button{min-width:72px}.more-menu{position:absolute;right:0;top:calc(100% + 1px);width:190px;padding:8px;background:#0b0b0b;border:1px solid rgba(255,255,255,.15);box-shadow:0 18px 46px rgba(0,0,0,.48);border-radius:0 0 8px 8px}.more-menu[hidden]{display:none}.more-menu a{display:block;padding:10px 12px;color:#c7c7c7;border-radius:6px;font-size:13px}.more-menu a:hover{background:#1a1a1a;color:#fff}.site-main{min-height:60vh}.section{padding:90px 0;border-bottom:1px solid rgba(255,255,255,.1)}.section-tight{padding:58px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:36px}.section-head h2,.page-hero h1{margin:0;color:#f7f7f7;line-height:1.08;letter-spacing:-.035em}.section-head h2{font-size:clamp(28px,4vw,48px)}.section-head p{max-width:620px;margin:0;color:#a5a5a5}.kicker{display:inline-block;margin-bottom:12px;color:#727272;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase}.page-hero{padding:96px 0 72px;border-bottom:1px solid rgba(255,255,255,.12)}.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:72px;align-items:end}.page-hero h1{font-size:clamp(46px,7vw,92px);max-width:960px}.page-hero .lead{font-size:18px;color:#c7c7c7;max-width:760px;margin:28px 0 0}.hero-meta{border-left:1px solid rgba(255,255,255,.4);padding-left:24px}.hero-meta p{margin:0 0 14px;color:#a5a5a5}.hero-actions,.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:8px;border:1px solid rgba(255,255,255,.45);font-size:14px;font-weight:700}.button.primary{background:#fff;color:#000;border-color:#fff}.button:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid #fff;outline-offset:3px}.hero-home{padding:42px 0 86px;border-bottom:1px solid rgba(255,255,255,.12)}.hero-home-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(360px,.75fr);gap:42px;align-items:stretch}.hero-visual{min-height:610px;background:#0b0b0b;border:1px solid rgba(255,255,255,.12);overflow:hidden;position:relative}.hero-visual img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) saturate(.2)}.visual-fallback{height:100%;min-height:360px;display:flex;align-items:end;padding:32px;background:#121212}.visual-fallback:before{content:"M";position:absolute;inset:auto 24px 0 auto;font-size:min(35vw,360px);line-height:.75;font-weight:900;color:rgba(255,255,255,.035);pointer-events:none}.visual-fallback strong{font-size:16px;letter-spacing:.1em;color:#727272}.hero-copy{display:flex;flex-direction:column;justify-content:center;padding:30px 0}.hero-copy h1{font-size:clamp(44px,6vw,78px);line-height:1.02;margin:0;color:#fff;letter-spacing:-.045em}.hero-copy>p{font-size:17px;color:#c7c7c7}.briefs{display:grid;gap:0;margin-top:34px;border-top:1px solid rgba(255,255,255,.12)}.brief{display:grid;grid-template-columns:100px 1fr auto;gap:18px;align-items:center;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.12)}.brief strong{color:#fff}.brief span{color:#a5a5a5;font-size:13px}.brief em{font-style:normal;color:#727272;font-size:12px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.card{background:#0b0b0b;border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:26px;min-width:0}.card:hover{border-color:rgba(255,255,255,.3)}.card .num{font-size:12px;color:#727272;letter-spacing:.12em}.card h3{font-size:21px;line-height:1.25;color:#f7f7f7;margin:18px 0 12px}.card p{margin:0;color:#a5a5a5}.card a.inline{display:inline-flex;margin-top:20px;color:#fff;font-size:13px;border-bottom:1px solid rgba(255,255,255,.4)}.feature-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.82fr);gap:0;background:#0b0b0b;border:1px solid rgba(255,255,255,.12);border-radius:10px;overflow:hidden}.feature-copy{padding:42px}.feature-copy h3{font-size:36px;line-height:1.15;margin:8px 0 18px;color:#fff}.feature-copy p{color:#a5a5a5}.feature-media{min-height:360px;position:relative;background:#121212}.feature-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) saturate(.2)}.text-columns{columns:2;column-gap:56px}.text-columns p{break-inside:avoid;margin-top:0;color:#c7c7c7}.prose{max-width:920px}.prose h2{font-size:34px;color:#f7f7f7;margin:56px 0 16px;line-height:1.2}.prose h3{font-size:22px;color:#f7f7f7;margin:34px 0 12px}.prose p{color:#c7c7c7}.prose ul{padding-left:22px}.prose li{margin:8px 0;color:#c7c7c7}.split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:68px}.split aside{border-top:1px solid rgba(255,255,255,.4);padding-top:20px}.split aside h2{font-size:22px;color:#fff;margin:0 0 14px}.split aside p{color:#a5a5a5}.list-lines{border-top:1px solid rgba(255,255,255,.2)}.list-line{display:grid;grid-template-columns:160px 1fr;gap:32px;padding:24px 0;border-bottom:1px solid rgba(255,255,255,.12)}.list-line strong{color:#fff}.list-line p{margin:0;color:#a5a5a5}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.tag{border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:7px 11px;color:#a5a5a5;font-size:12px}.notice{border:1px solid rgba(255,255,255,.4);padding:22px 24px;background:#050505}.notice strong{color:#fff}.notice p{margin:8px 0 0;color:#a5a5a5}.quote{font-size:clamp(26px,4vw,46px);line-height:1.35;color:#f7f7f7;border-left:2px solid #fff;padding-left:28px;max-width:980px}.faq-list{display:grid;gap:10px}.faq-item{background:#0b0b0b;border:1px solid rgba(255,255,255,.12);border-radius:8px}.faq-item summary{cursor:pointer;padding:20px 22px;color:#f7f7f7;font-weight:700;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";float:right;color:#727272}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 22px 22px;color:#a5a5a5}.site-footer{padding:64px 0 110px;background:#000}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:42px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-logo{display:inline-flex;flex-direction:column;margin-bottom:18px}.footer-logo img,.panel-brand img{max-width:150px;max-height:46px;object-fit:contain}.footer-logo strong,.panel-brand strong{font-size:24px;color:#fff;letter-spacing:.2em}.footer-logo span,.panel-brand span{font-size:9px;color:#727272;letter-spacing:.18em}.footer-brand p{max-width:360px;color:#727272;font-size:13px}.footer-col{display:flex;flex-direction:column;gap:9px}.footer-col h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-col a{font-size:13px;color:#727272}.footer-col a:hover{color:#fff}.footer-notice{padding-top:24px}.footer-notice p{font-size:12px;color:#727272;max-width:980px}.copyright-line{margin-top:18px}.site-overlay{position:fixed;inset:0;z-index:150;background:rgba(0,0,0,.72);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,visibility .22s}.menu-open .site-overlay,.search-open .site-overlay{opacity:1;visibility:visible;pointer-events:auto}.site-panel{position:fixed;z-index:170;top:0;left:0;width:min(520px,90vw);height:100dvh;background:#050505;border-right:1px solid rgba(255,255,255,.15);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;display:flex;flex-direction:column}.menu-open .site-panel{transform:translateX(0);visibility:visible;pointer-events:auto}.panel-head{height:76px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;border-bottom:1px solid rgba(255,255,255,.12)}.panel-brand{display:flex;flex-direction:column}.icon-button{width:44px;height:44px;border:1px solid rgba(255,255,255,.2);border-radius:50%;font-size:27px;line-height:1}.panel-body{overflow-y:auto;padding:24px}.panel-body section{padding:8px 0 24px}.panel-body h2{font-size:11px;color:#727272;letter-spacing:.14em;margin:0 0 9px}.panel-link{display:grid;grid-template-columns:112px 1fr;gap:15px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.08)}.panel-link strong{color:#fff;font-size:14px}.panel-link span{font-size:12px;color:#727272}.panel-link:hover span{color:#a5a5a5}.search-panel{position:fixed;inset:0;z-index:180;background:#000;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s;overflow-y:auto}.search-open .search-panel{opacity:1;visibility:visible;pointer-events:auto}.search-shell{padding-top:9vh;padding-bottom:80px}.search-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.search-head h2{font-size:clamp(36px,6vw,72px);line-height:1.05;margin:0;color:#fff}.search-label{display:block;margin:58px 0 12px;font-size:13px;color:#a5a5a5}.search-input{width:100%;background:#050505;border:0;border-bottom:1px solid rgba(255,255,255,.45);padding:18px 0;color:#fff;font-size:clamp(22px,4vw,38px);outline:none}.search-input:focus{border-color:#fff}.search-help{font-size:12px;color:#727272}.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.12);margin-top:38px}.search-results a{background:#000;padding:20px;display:flex;justify-content:space-between;gap:20px}.search-results a:hover{background:#121212}.search-results span{color:#fff}.search-results small{color:#727272}.search-empty{color:#a5a5a5;margin-top:28px}.mobile-nav{display:none}.home-band{padding:34px 0;border-bottom:1px solid rgba(255,255,255,.12)}.home-band .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.home-band article{padding-left:18px;border-left:1px solid rgba(255,255,255,.3)}.home-band h2{font-size:15px;color:#fff;margin:0 0 6px}.home-band p{font-size:13px;color:#727272;margin:0}.timeline{border-left:1px solid rgba(255,255,255,.25);margin-left:7px}.timeline-item{position:relative;padding:0 0 34px 32px}.timeline-item:before{content:"";position:absolute;left:-5px;top:8px;width:9px;height:9px;background:#fff;border-radius:50%}.timeline-item h3{margin:0;color:#fff}.timeline-item p{margin:7px 0 0;color:#a5a5a5}.stateless{font-size:12px;color:#727272}.legal-steps{counter-reset:step;display:grid;gap:12px}.legal-step{counter-increment:step;display:grid;grid-template-columns:56px 1fr;gap:20px;padding:22px;border:1px solid rgba(255,255,255,.12);background:#0b0b0b}.legal-step:before{content:counter(step,decimal-leading-zero);font-weight:800;color:#727272}.legal-step h3{margin:0 0 6px;color:#fff}.legal-step p{margin:0;color:#a5a5a5}.rating-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.rating-card{padding:24px;border:1px solid rgba(255,255,255,.12);background:#0b0b0b}.rating-card h3{margin:0 0 10px;color:#fff}.rating-card p{margin:0;color:#a5a5a5}.app-preview{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(0,1.28fr);gap:60px;align-items:center}.app-image{min-height:520px;background:#0b0b0b;border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.app-image img{width:100%;height:100%;object-fit:contain;filter:grayscale(.4)}.app-image .visual-fallback{width:100%;min-height:520px}.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-item{padding:25px;border-top:1px solid rgba(255,255,255,.35);background:#050505}.contact-item h3{margin:0 0 8px;color:#fff}.contact-item p{margin:0;color:#a5a5a5}@media (max-width:1050px){.topbar-inner{grid-template-columns:1fr auto}.topbar-links{display:none}.hero-home-grid,.page-hero-grid,.feature-card,.split,.app-preview{grid-template-columns:1fr}.hero-home-grid{gap:26px}.hero-copy{order:-1}.hero-visual{min-height:460px}.footer-grid{grid-template-columns:2fr repeat(2,1fr)}.footer-brand{grid-row:span 2}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.page-hero-grid{gap:34px}.hero-meta{border-left:0;border-top:1px solid rgba(255,255,255,.4);padding:20px 0 0}}@media (max-width:760px){.wrap{width:min(100% - 28px,1320px)}.desktop-only{display:none!important}.mobile-only{display:inline-flex!important}.topbar-inner{height:32px;grid-template-columns:1fr auto}.topbar-brand{font-size:11px;overflow:hidden;text-overflow:ellipsis}.topbar-tools{gap:12px}.brandbar-inner{min-height:60px;grid-template-columns:1fr auto 1fr;gap:10px}.brand-logo{min-width:112px}.brand-logo img{max-width:110px;max-height:38px}.brand-cn{font-size:19px}.brand-en{font-size:7px}.brand-side-right{justify-content:flex-end}.nav-action{padding:0 12px;min-height:44px}.menu-button{width:44px;padding:0;justify-content:center}.channelbar{height:46px}.channelbar-inner{width:100%;padding-left:14px;margin:0}.channel-scroll{overflow-x:auto;scrollbar-width:none}.channel-scroll::-webkit-scrollbar{display:none}.channel-scroll a{padding:0 12px;min-height:45px}.more-wrap{padding-right:8px;background:#000}.more-button{min-height:45px;padding:0 12px}.section{padding:66px 0}.section-tight{padding:44px 0}.section-head{display:block}.section-head p{margin-top:14px}.page-hero{padding:68px 0 52px}.page-hero h1{font-size:clamp(42px,14vw,64px)}.hero-home{padding:28px 0 62px}.hero-copy{padding:12px 0}.hero-copy h1{font-size:clamp(42px,14vw,62px)}.hero-copy>p{font-size:15px}.hero-visual{min-height:330px}.brief{grid-template-columns:82px 1fr}.brief em{display:none}.grid-2,.grid-3,.grid-4,.rating-grid,.contact-grid{grid-template-columns:1fr}.feature-copy{padding:28px}.feature-copy h3{font-size:30px}.feature-media{min-height:280px}.text-columns{columns:1}.list-line{grid-template-columns:1fr;gap:8px}.footer-grid{grid-template-columns:repeat(2,1fr);gap:34px 20px}.footer-brand{grid-column:1/-1;grid-row:auto}.site-footer{padding-bottom:96px}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:120;min-height:58px;padding-bottom:env(safe-area-inset-bottom);background:#050505;border-top:1px solid rgba(255,255,255,.15)}.mobile-nav a{min-height:58px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#727272}.mobile-nav a.is-active{color:#fff;background:#121212}.menu-open .mobile-nav,.search-open .mobile-nav{visibility:hidden}.home-band .wrap{grid-template-columns:1fr;gap:18px}.search-results{grid-template-columns:1fr}.search-shell{padding-top:6vh}.panel-body{padding:18px}.panel-link{grid-template-columns:92px 1fr}.app-image,.app-image .visual-fallback{min-height:390px}.button-row,.hero-actions{align-items:stretch}.button{flex:1 1 auto}.quote{padding-left:20px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.button:hover{transform:none}}