:root{--ink:#28354d;--muted:#738097;--blue:#476bab;--blue-dark:#365991;--line:#e5eaf1;--cream:#fcfaf7;--green:#269666;--radius:20px;--container:1160px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:#fff;font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,.wechat-id:focus-visible{outline:3px solid #89ade8;outline-offset:5px}img,svg{display:block;max-width:100%}svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:650;letter-spacing:-.035em}h1{font-size:clamp(37px,3.5vw,50px);line-height:1.48}h2{font-size:34px;line-height:1.55}h3{font-size:20px;line-height:1.5}p{line-height:1.85}.container{width:min(var(--container),calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;z-index:10;top:8px;left:16px;background:var(--ink);color:#fff;padding:10px 15px;transform:translateY(-150%)}.skip-link:focus{transform:none}.site-header{border-bottom:1px solid #f0f2f5;background:rgba(255,255,255,.97)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:87px;gap:20px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand span{font-size:22px;letter-spacing:.035em;font-weight:700}.header-inner nav{display:flex;align-items:center;gap:33px;font-size:14px;font-weight:500}.header-inner nav a{padding:14px 0;display:flex;align-items:center;gap:7px}.header-inner nav a:hover,.text-link:hover{color:var(--blue)}.nav-dot{width:6px;height:6px;border-radius:50%;background:#71a285}.hero{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:65px;padding-top:90px;padding-bottom:90px}.eyebrow{display:flex;gap:9px;align-items:center;color:var(--blue);font-size:13px;font-weight:600;letter-spacing:.07em;margin-bottom:21px}.eyebrow>span{width:7px;height:7px;border-radius:50%;background:#7d9ed0}.hero h1 span{color:var(--blue)}.hero-description{font-size:15px;color:var(--muted);margin-top:22px;line-height:2}.hero-actions{display:flex;align-items:center;gap:13px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 20px;border:1px solid transparent;border-radius:10px;font-weight:600;font-size:14px;line-height:1.5;transition:background .18s,transform .18s;text-align:center}.button:hover{transform:translateY(-1px)}.button.primary{background:var(--blue);color:#fff;box-shadow:0 5px 13px rgba(71,107,171,.12)}.button.primary:hover{background:var(--blue-dark)}.button.secondary{background:#fff;border-color:var(--line);color:var(--ink);padding-inline:18px;gap:18px}.release-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:11px;color:#8791a1;margin-top:15px}.hero-benefits{display:flex;gap:22px;flex-wrap:wrap;font-size:12px;color:#748197;margin-top:29px}.hero-benefits i{font-style:normal;color:var(--green);margin-right:5px}.mobile-download-note{font-size:12px;color:var(--muted);margin-top:10px}.product-preview{position:relative;min-width:0;border:1px solid #e4e9f0;border-radius:var(--radius);box-shadow:0 20px 60px rgba(42,64,97,.07);padding:22px;background:#fff;transform:rotate(1deg)}.product-preview::before{content:"";position:absolute;inset:14px -12px -14px 12px;background:#f2f5fa;border:1px solid #e9edf4;border-radius:var(--radius);z-index:-1}.preview-title{display:flex;align-items:center;gap:10px;font-size:15px}.preview-title strong{font-weight:650}.preview-badge{margin-left:auto;color:#93a0b1;font-size:10px;padding:3px 7px;background:#f5f7fa;border-radius:5px}.preview-search{display:flex;align-items:center;gap:10px;padding:15px 13px;background:#f5f7fb;border:1px solid #edf0f5;border-radius:8px;color:#94a0b0;font-size:11px;margin:20px 0 14px}.preview-search svg{width:16px;height:16px;flex-shrink:0}.preview-tabs{display:flex;gap:15px;font-size:10px;color:#8f9aab;padding:0 0 15px;border-bottom:1px solid var(--line)}.preview-tabs .selected{color:var(--blue);font-weight:650}.device-row{display:flex;align-items:center;gap:14px;padding:19px 0;border-bottom:1px solid #edf0f5}.phone-shape{height:58px;width:32px;flex-shrink:0;border-radius:7px;border:2px solid #a7b3cc;background:linear-gradient(145deg,#e5e6ef,#c1c4dc);position:relative;box-shadow:inset 0 0 0 2px #f6f7fc}.phone-shape::before{content:"";width:9px;height:9px;border-radius:50%;background:#748197;position:absolute;top:5px;left:5px;box-shadow:9px 6px 0 #8992a7}.phone-shape.blue{background:linear-gradient(145deg,#e0e8f3,#b9cbe0)}.phone-shape.gray{background:linear-gradient(145deg,#dfe3e9,#a8b1c0)}.device-copy{display:flex;flex-direction:column;min-width:0;gap:5px}.device-copy strong{font-size:12px;font-weight:650}.device-copy span{font-size:10px;color:#96a0af}.device-copy code{font-size:9px;color:#96a0af;letter-spacing:.04em}.status{font-size:10px;border-radius:5px;padding:4px 7px;white-space:nowrap;margin-left:auto;align-self:flex-start;margin-top:2px}.status.stock{color:#4d865f;background:#edf5ee}.status.away{color:#be6b5c;background:#fff0eb}.preview-footer{display:flex;justify-content:space-between;color:#8190a8;font-size:10px;margin-top:17px}.preview-footer>span:first-child{display:flex;align-items:center;gap:6px}.preview-footer i{height:5px;width:5px;border-radius:50%;background:#7eab91}.feature-section{background:var(--cream);padding:65px 0 67px;border-block:1px solid #f2eee8}.text-only{display:block;margin-bottom:12px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}.section-heading>p{color:#8d969f;font-size:13px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:50px}.feature-item{padding-right:20px}.feature-icon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:#e9edf5;color:var(--blue);margin-bottom:18px}.feature-item h3{font-size:19px}.feature-item p{font-size:13px;line-height:1.95;color:#7f8998;margin-top:10px;max-width:310px}.feature-note{display:block;color:#96a0ad;font-size:11px;margin-top:22px}.download-section{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center;padding-block:84px}.download-copy>p:not(.eyebrow){font-size:14px;color:var(--muted);margin-top:17px}.install-steps{list-style:none;counter-reset:steps;margin:27px 0 0;padding:0;display:grid;gap:20px}.install-steps li{counter-increment:steps;position:relative;padding-left:40px;font-size:12px;line-height:1.9;color:#8992a1}.install-steps li::before{content:counter(steps,decimal-leading-zero);position:absolute;left:0;top:1px;font-size:12px;font-weight:650;color:#8ba0bf}.install-steps span{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:2px}.download-card{background:#f4f7fb;border:1px solid #e2e9f3;border-radius:var(--radius);padding:30px;min-width:0}.download-card-heading{display:flex;align-items:center;gap:15px;flex-wrap:wrap}.download-card-heading img{width:52px;height:52px}.download-card-heading h3{font-size:16px;letter-spacing:0}.download-card-heading p{font-size:11px;color:#929dad;margin-top:3px}.version-chip{font-size:11px;padding:5px 9px;border:1px solid #dce5f2;border-radius:6px;color:var(--blue);margin-left:auto;background:#fff}.download-specs{margin:26px 0 24px}.download-specs>div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid #e6ebf2;font-size:12px}.download-specs dt{color:#8c97a8}.download-specs dd{margin:0;color:#526078;text-align:right}.full{width:100%}.full>span:last-child{margin-left:auto}.download-help{text-align:center;font-size:11px;color:#98a1af;margin-top:16px;line-height:1.9}.checksum{margin-top:22px;border-top:1px solid #e0e7f1;padding-top:17px;font-size:11px;color:#8190a6}.checksum summary{cursor:pointer;display:flex;justify-content:space-between;gap:12px;list-style:none}.checksum summary::-webkit-details-marker{display:none}.checksum[open] summary>span{transform:rotate(45deg)}.checksum>div{padding-top:14px}.checksum p{font-size:10px;margin-bottom:5px}.checksum code{display:block;overflow-wrap:anywhere;font-size:10px;line-height:1.8;user-select:all;color:#6f7f97}.checksum a{display:inline-block;color:var(--blue);text-decoration:underline;margin-top:9px}.contact-section{background:#2e405d;color:#fff;padding:64px 0}.contact-inner{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:100px}.contact-copy .eyebrow{color:#a8bedf}.contact-copy h2{font-size:36px}.contact-copy>p:not(.eyebrow){font-size:14px;color:#b7c3d5;margin-top:17px}.contact-small{display:block;font-size:11px;color:#94a6c2;margin-top:23px}.contact-card{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px 35px;text-align:center;max-width:400px;justify-self:end;width:100%}.wechat-label{display:flex;align-items:center;justify-content:center;gap:9px;color:#83918e;font-size:12px}.wechat-label svg{width:28px;height:28px;stroke:var(--green);stroke-width:1.5}.wechat-id{display:block;font-size:32px;letter-spacing:.035em;font-weight:650;color:#2c3e46;margin-top:16px;user-select:all;overflow-wrap:anywhere}.wechat-button{margin-top:21px;background:#eaf6ef;color:#27865c;width:100%;border-color:#d7ebdf}.wechat-button:hover{background:#dff0e5}.contact-card>p{font-size:11px;line-height:2;color:#99a4aa;margin-top:16px}.faq-section{padding-block:76px}.faq-section .section-heading{margin-bottom:23px}.text-link{font-size:12px;color:#8191a9;white-space:nowrap}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:14px;line-height:1.8;padding:21px 0;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{flex-shrink:0;color:#91a0b4;font-size:18px;line-height:1}.faq-list details[open] 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h1{font-size:34px}.privacy-page h2{font-size:20px;margin-top:32px}.privacy-page p{margin-top:12px;color:var(--muted);font-size:14px}.privacy-page .button{margin-top:28px}
@media(min-width:1400px){.hero{padding-top:105px;padding-bottom:105px;gap:95px}.hero h1{font-size:52px}}
@media(max-width:1000px){.container{width:calc(100% - 48px)}.hero{gap:30px;padding-block:65px}h1{font-size:37px}.hero-actions{flex-wrap:wrap}.hero-actions .button{font-size:12px;padding-inline:14px}.hero-description{font-size:13px}.release-meta{font-size:10px}.product-preview{padding:18px}.preview-tabs{gap:12px}.download-section,.contact-inner{gap:48px}.feature-grid{gap:26px}.section-heading h2{font-size:29px}.feature-item{padding:0}.download-card{padding:24px}.download-card-heading{gap:10px}.download-card-heading h3{font-size:14px}.download-card-heading img{width:45px;height:45px}.version-chip{font-size:10px}}
@media(max-width:720px){.header-inner{min-height:72px}.hero{grid-template-columns:1fr;gap:45px;padding-block:48px 55px}.hero-copy{max-width:560px}.hero h1{font-size:clamp(34px,6.5vw,45px)}.hero-description{font-size:14px}.hero-actions{margin-top:26px}.hero-actions .button{font-size:13px;padding-inline:18px}.product-preview{width:min(440px,calc(100% - 12px));justify-self:center;transform:none;padding:21px}.preview-title{font-size:15px}.preview-tabs{gap:22px}.device-row{padding:17px 0}.device-copy strong{font-size:13px}.device-copy span{font-size:11px}.device-copy code{font-size:10px}.preview-search{font-size:11px}.feature-section{padding-block:44px}.section-heading{display:block;margin-bottom:28px}.section-heading>p{margin-top:12px}.section-heading>p br{display:none}.feature-grid{grid-template-columns:1fr;gap:27px}.feature-item{display:grid;grid-template-columns:42px 1fr;column-gap:18px}.feature-icon{grid-row:1/4;margin:0}.feature-item h3{font-size:17px}.feature-item p{margin-top:6px;max-width:none;font-size:13px}.feature-note{margin-top:11px;font-size:10px}.download-section{grid-template-columns:1fr;gap:30px;padding-block:53px}.download-copy h2{font-size:30px}.download-copy h2 br{display:none}.download-copy>p:not(.eyebrow){font-size:13px}.download-copy>p:not(.eyebrow) br{display:none}.install-steps{gap:16px;margin-top:22px}.download-card{max-width:510px;width:100%;justify-self:center}.download-card-heading h3{font-size:16px}.download-card-heading img{width:52px;height:52px}.contact-section{padding-block:47px}.contact-inner{grid-template-columns:1fr;gap:30px}.contact-copy h2{font-size:32px}.contact-copy h2 br{display:none}.contact-copy>p:not(.eyebrow){font-size:13px}.contact-small{margin-top:14px}.contact-card{justify-self:center;max-width:440px}.faq-section{padding-block:50px}.faq-section .text-link{display:inline-block;margin-top:13px}.faq-list summary{font-size:13px;padding:18px 0}.faq-list details>p{font-size:12px;padding-right:15px}.header-inner nav{gap:20px;font-size:12px}.features-link{display:none!important}.brand span{font-size:20px}.hero-benefits{font-size:11px;gap:15px;margin-top:22px}.footer-inner{gap:14px;flex-wrap:wrap}.footer-inner .brand span{font-size:15px}.footer-inner>p{font-size:10px}.footer-inner>a:last-child{font-size:10px}.footer-registration{font-size:10px;gap:8px 17px}.text-only{margin-bottom:9px}}
@media(max-width:380px){.container{width:calc(100% - 32px)}.header-inner{gap:12px}.brand{gap:7px}.brand img{width:32px;height:32px}.brand span{font-size:18px}.header-inner nav{gap:15px;font-size:11px}.hero h1{font-size:31px}.hero-description{font-size:12px}.hero-actions{gap:9px}.hero-actions .button{font-size:11px;padding-inline:13px;gap:7px;min-height:49px}.hero-actions .button svg{width:20px;height:20px}.release-meta{gap:5px;font-size:9px}.hero-benefits{gap:10px;font-size:10px}.product-preview{padding:16px}.preview-tabs{gap:15px}.preview-search{font-size:10px;gap:7px;padding-inline:9px}.download-card{padding:20px}.download-card-heading{gap:10px}.download-card-heading img{width:42px;height:42px}.download-card-heading h3{font-size:13px}.version-chip{padding:4px 6px}.download-specs>div{font-size:11px}.download-card .button{font-size:12px;padding-inline:12px}.download-help{font-size:10px}.contact-card{padding:26px 23px}.wechat-id{font-size:29px}.section-heading h2{font-size:27px}.footer-inner>p{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}