:root{--background:#f7f9fc;--surface:#fff;--text:#1d2b43;--muted:#6e7a8f;--border:#e3e9f2;--blue:#3969e8;--blue-dark:#2755c9;--blue-soft:#edf3ff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{background:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.7}a{color:inherit;text-decoration:none}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}:focus-visible{outline-offset:4px;outline:3px solid #7fa3ff}button{color:inherit}p,h1,h2,h3{margin:0}svg{flex-shrink:0;width:25px;height:25px;display:block}.skip-link{background:var(--text);color:#fff;z-index:100;padding:10px 20px;position:fixed;top:-70px;left:20px}.skip-link:focus{top:12px}.site-header{border-bottom:1px solid var(--border);background:var(--surface)}.header-inner{justify-content:space-between;align-items:center;max-width:1080px;min-height:80px;margin:auto;padding:0 32px;display:flex}.brand{letter-spacing:.5px;align-items:center;gap:11px;font-size:18px;font-weight:700;display:flex}.brand-mark{background:var(--blue);color:#fff;border-radius:10px;justify-content:center;align-items:center;width:32px;height:32px;font-size:27px;line-height:1;display:inline-flex}.brand-divider{background:var(--border);width:1px;height:17px;margin:0 3px}.brand-caption{color:#8995a8;letter-spacing:1.8px;font-size:10px;font-weight:600}.header-help{color:var(--muted);font-size:13px}.header-help span{margin-left:9px}.header-help:hover{color:var(--blue)}.container{max-width:1016px;margin:auto;padding:0 32px}.hero{padding:65px 0 49px}.eyebrow{color:var(--blue);letter-spacing:1px;align-items:center;gap:8px;margin-bottom:14px;font-size:12px;font-weight:600;display:flex}.eyebrow>span{background:var(--blue);border-radius:50%;width:6px;height:6px}h1{letter-spacing:-1.5px;font-size:44px;font-weight:750;line-height:1.35}h1>span{color:var(--blue)}.hero-description{color:var(--muted);margin-top:14px;font-size:15px}.journey{color:#6a7890;align-items:center;gap:19px;margin-top:29px;font-size:12px;display:flex}.journey span{align-items:center;gap:9px;display:flex}.journey b{color:var(--blue);font-family:ui-monospace,monospace;font-size:11px;font-weight:500}.journey i{color:#c3ccdb;font-style:normal}.section-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:17px;display:flex}.section-heading h2{font-size:16px;font-weight:650}.section-heading>span{color:#8b96a8;font-size:12px}.platform-tabs{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:23px;display:grid}.platform-tab{text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:12px;align-items:center;gap:14px;min-height:89px;padding:18px 19px;transition:background .15s,border-color .15s;display:flex}.platform-tab>svg{color:#8793a7}.platform-tab strong{white-space:nowrap;font-size:14px;font-weight:650;display:block}.platform-tab small{color:#8b96a8;margin-top:2px;font-size:11px;display:block}.platform-tab.selected{border-color:var(--blue);background:var(--blue-soft);box-shadow:0 0 0 1px var(--blue)}.platform-tab.selected>svg,.platform-tab.selected strong{color:var(--blue)}.platform-tab:hover{border-color:#8eabf5}.tab-check{color:var(--blue);align-self:flex-start;margin-left:auto;font-size:11px;line-height:18px}.guide-panel{outline-offset:8px;border-radius:16px}.download-card{border:1px solid var(--border);background:var(--surface);border-radius:15px;padding:29px 31px 0;box-shadow:0 3px 12px #17385b03}.client-heading{align-items:center;gap:17px;display:flex}.client-icon{background:var(--blue);color:#fff;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:51px;height:51px;font-size:29px;font-style:italic;font-weight:750;display:flex;box-shadow:0 4px 8px #3969e825}.client-icon.rocket{background:#24334e}.client-title{align-items:center;gap:12px;display:flex}.client-title h2{letter-spacing:-.5px;font-size:25px;line-height:1.3}.platform-badge{color:#78859a;background:#f0f3f8;border-radius:5px;padding:1px 8px;font-size:10px}.client-heading p{color:var(--muted);margin-top:5px;font-size:12px}.download-meta{color:#8390a3;gap:21px;margin-top:20px;font-size:11px;display:flex}.download-meta>span+span{position:relative}.download-meta>span+span:before{content:"";background:#c4ccda;border-radius:50%;width:3px;height:3px;position:absolute;top:8px;left:-12px}.download-actions{align-items:flex-end;gap:12px;margin-top:22px;display:flex}.architecture{flex-direction:column;gap:7px;display:flex}.architecture label{color:var(--muted);font-size:11px}.architecture select{min-width:235px;max-width:100%;height:46px;color:var(--text);background:#fff;border:1px solid #dbe2ed;border-radius:8px;padding:0 37px 0 14px;font-size:13px}.primary-button{background:var(--blue);color:#fff;border:0;border-radius:8px;justify-content:center;align-items:center;gap:11px;min-height:46px;padding:0 20px;font-size:13px;font-weight:600;transition:background .15s;display:inline-flex}.primary-button:hover{background:var(--blue-dark)}.primary-button>span:first-child{font-size:18px;line-height:1}.button-platform{color:#dce6ff;border-left:1px solid #ffffff40;padding-left:12px;font-size:11px;font-weight:400}.architecture-hint{color:#8a95a7;max-width:760px;margin-top:12px;font-size:11px;line-height:1.9}.source-row{color:#8894a6;border-top:1px solid #edf0f5;justify-content:space-between;align-items:center;gap:16px;margin-top:23px;padding:13px 0;font-size:11px;display:flex}.source-row>a:hover{color:var(--blue)}.source-status,.fallback-status{align-items:center;gap:7px;display:flex}.source-status>span,.fallback-status>span{background:#42a77b;border-radius:50%;flex-shrink:0;width:5px;height:5px}.fallback-status>span{background:#c39433}.setup-layout{grid-template-columns:minmax(0,1fr) 261px;gap:45px;margin-top:35px;display:grid}.steps{margin:0;padding:0;list-style:none}.steps li{gap:17px;padding-bottom:27px;display:flex;position:relative}.steps li:not(:last-child):before{content:"";background:#dde5f0;width:1px;height:calc(100% - 39px);position:absolute;top:37px;left:16px}.steps li:last-child{padding-bottom:0}.step-number{width:33px;height:33px;color:var(--blue);background:#edf2fd;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-family:ui-monospace,monospace;font-size:11px;display:flex}.steps h3{margin:3px 0 6px;font-size:14px;font-weight:650}.steps p{color:var(--muted);font-size:12px;line-height:1.95}.tips{padding-top:42px}.tip-card{background:#edf3ff;border:1px solid #e0e9fb;border-radius:12px;padding:22px}.tip-symbol{color:var(--blue);font-size:21px}.tip-card h3{margin:7px 0 10px;font-size:14px}.tip-card p{color:#70819d;margin-bottom:8px;font-size:12px;line-height:1.9}.privacy-note{color:#7c8daa;border-top:1px solid #dce6f8;margin-top:17px;padding-top:13px;font-size:11px;line-height:1.9}.small-tip{padding:20px 10px 0}.small-tip h3{color:#617189;font-size:12px;font-weight:500}.small-tip h3 span{margin-right:6px}.small-tip p{color:#8a95a7;margin-top:7px;font-size:11px;line-height:1.95}.faq{border-top:1px solid var(--border);margin-top:53px;padding-top:27px;scroll-margin-top:30px}.faq details{border-bottom:1px solid var(--border)}.faq summary{cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:17px 0;font-size:13px;font-weight:500;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary>span{color:#8996aa;font-size:20px;font-weight:400;line-height:1}.faq details[open] summary>span{transform:rotate(45deg)}.faq details p{color:var(--muted);max-width:780px;padding:0 34px 19px 0;font-size:12px;line-height:1.95}.finish-note{color:#8996a8;justify-content:center;align-items:center;gap:10px;margin:34px 0 42px;font-size:12px;display:flex}.finish-note>span{color:#64a88c}footer{border-top:1px solid var(--border);color:#9aa4b4;justify-content:space-between;gap:12px;max-width:1016px;margin:auto;padding:23px 32px 30px;font-size:10px;display:flex}.footer-dot{padding:0 8px}.loading{min-height:65vh;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:20px;display:flex}.loading h1{font-size:24px}@media (min-width:1200px){.hero{padding-top:72px}}@media (max-width:800px){.platform-tab{gap:10px;padding:16px 13px}.platform-tab>svg{width:21px;height:21px}.platform-tab strong{font-size:12px}.platform-tab small{font-size:10px}.tab-check{display:none}.setup-layout{grid-template-columns:minmax(0,1fr) 225px;gap:25px}.tip-card{padding:18px}}@media (max-width:600px){.header-inner{min-height:67px;padding:0 20px}.brand-caption,.brand-divider{display:none}.brand{font-size:16px}.brand-mark{width:29px;height:29px}.header-help{font-size:11px}.container{padding:0 20px}.hero{padding:39px 0 33px}h1{letter-spacing:-1px;font-size:33px}.hero-description{margin-top:12px;font-size:13px}.eyebrow{font-size:10px}.journey{gap:11px;margin-top:24px;font-size:10px}.journey span{gap:6px}.journey b{font-size:10px}.section-heading{margin-bottom:14px}.section-heading h2{font-size:15px}.section-heading>span{font-size:10px}.platform-tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-bottom:20px}.platform-tab{gap:12px;min-height:75px;padding:14px 16px}.platform-tab strong{font-size:13px}.platform-tab small{font-size:10px}.tab-check{display:block}.download-card{border-radius:13px;padding:23px 20px 0}.client-heading{gap:13px}.client-icon{border-radius:12px;width:45px;height:45px;font-size:26px}.client-title{flex-wrap:wrap;gap:9px}.client-title h2{font-size:23px}.client-heading p{font-size:11px}.download-meta{margin-top:18px}.download-actions{flex-direction:column;align-items:stretch;gap:13px;margin-top:20px}.architecture select{width:100%;min-width:0}.primary-button{width:100%;min-height:48px}.architecture-hint{font-size:10px}.source-row{align-items:flex-start;gap:10px;padding:13px 0;font-size:10px}.source-row>a{white-space:nowrap}.setup-layout{grid-template-columns:1fr;gap:25px;margin-top:28px}.steps li{gap:14px;padding-bottom:23px}.steps p{font-size:12px}.tips{grid-template-columns:1fr;gap:0;padding:0;display:grid}.tip-card{padding:19px 21px}.tip-symbol{float:left;margin-right:9px;line-height:24px}.tip-card h3{margin:0 0 10px}.privacy-note{margin-top:12px;padding-top:10px}.small-tip{padding:19px 4px 0}.faq{margin-top:31px;padding-top:25px}.faq summary{padding:17px 0;font-size:12px}.finish-note{margin:29px 0 31px;font-size:11px}footer{flex-direction:column;gap:5px;padding:20px;font-size:10px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
