*{box-sizing:border-box}body{margin:0;background:#f2f2f8;color:#30323a;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-text-size-adjust:100%}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:3px solid #4485f3;outline-offset:4px}[hidden]{display:none!important}.page-header{position:relative;height:72px;max-width:860px;margin:auto;display:flex;align-items:center;justify-content:center;padding-top:env(safe-area-inset-top)}h1{font-size:21px;margin:0;font-weight:650;letter-spacing:1px}.back{position:absolute;left:12px;display:grid;place-items:center;width:44px;height:44px}.back svg{width:26px;height:26px}main{max-width:800px;margin:auto;padding:25px 22px 36px}.download-card{display:flex;align-items:center;gap:14px;border-radius:22px;background:#fff;padding:23px 18px;min-height:110px}.download-card>img{width:60px;height:60px;object-fit:contain;border-radius:14px}.download-card h2{font-size:20px;margin:0 0 7px;color:#626a7e;font-weight:550}.download-card p{font-size:11px;margin:0;color:#969cab}.download-button{margin-left:auto;border-radius:28px;min-width:76px;text-align:center;padding:12px 20px;background:#eef3ff;color:#7199eb;font-size:17px;white-space:nowrap}.platform-tabs{display:flex;justify-content:center;gap:6px;background:#e8ebf4;width:max-content;margin:27px auto 24px;padding:4px;border-radius:30px}.platform-tabs button{border:0;background:transparent;color:#788297;border-radius:24px;padding:9px 25px;font-size:14px}.platform-tabs button[aria-pressed=true]{background:#fff;color:#5987d5;box-shadow:0 2px 5px #27427f12}.guide>h2{text-align:center;font-size:25px;margin:0;font-weight:750}.guide>h2 span{font-size:18px;font-weight:500}.guide-intro{text-align:center;color:#8c90a1;font-size:13px;line-height:1.8;margin:13px 8px 22px}.steps{display:grid;grid-template-columns:1fr 1fr;gap:18px}.step{min-width:0;background:#fff;border-radius:22px;padding:20px}.step h3{font-size:17px;margin:0 0 11px;display:flex;gap:9px;align-items:center}.step h3 b{display:inline-grid;place-items:center;border-radius:50%;background:#e8f0ff;color:#6292df;width:25px;height:25px;font-size:14px;flex-shrink:0}.step>p{font-size:13px;color:#8d95a6;line-height:1.8;min-height:47px;margin:0 0 20px}.phone-demo{border:6px solid #2d303b;border-radius:24px;padding:16px 8px 20px;min-height:290px;background:#f1f5fc;max-width:240px;margin:auto;overflow:hidden;box-shadow:0 5px 18px #394a7412}.browser-address{border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:8px;font-size:11px;color:#757d8c}.browser-address strong{color:#517acf;font-size:21px;line-height:1}.demo-brand{display:flex;align-items:center;flex-direction:column;gap:6px;padding:30px 0 20px}.demo-brand img{width:58px;height:58px}.demo-brand strong{font-size:16px}.demo-brand>span{font-size:11px;color:#8a92a2}.demo-mark{text-align:center;font-size:11px;background:#e0ebfc;color:#5b81be;border-radius:10px;padding:12px 3px}.menu-item{font-size:12px;padding:13px 9px;background:#fff;border-bottom:1px solid #eff1f5;display:flex;justify-content:space-between;gap:4px}.menu-item span{color:#8e99ab}.menu-item.selected{background:#e7f0ff;color:#4b78bf;outline:2px solid #6c9ce8;outline-offset:-2px;border-radius:5px}.menu-demo .browser-address{margin-bottom:17px}.desktop-icon{display:flex;align-items:center;flex-direction:column;gap:5px;margin-top:20px}.desktop-icon img{width:42px;height:42px}.desktop-icon span{font-size:10px}.guide-note{font-size:12px;line-height:1.9;color:#8d95a6;text-align:center;margin:18px 3px 28px}.ios-dialog{background:#fff;border-radius:14px;text-align:center;padding-top:16px;box-shadow:0 5px 15px #43537314}.ios-dialog>strong{font-size:13px}.ios-dialog p{font-size:10px;color:#8792a5}.ios-dialog>div{display:flex;border-top:1px solid #e6e9ef;margin-top:15px}.ios-dialog>div>*{width:50%;font-size:12px;padding:12px;color:#407bd6}.ios-dialog>div b{border-left:1px solid #e6e9ef}.ios-dialog+.foo{display:none}.settings-heading{font-size:22px;font-weight:700;margin:8px 0 20px}.profile-preview{background:#fff;border-radius:12px;margin-top:15px;padding:16px 5px;display:flex;gap:8px;flex-direction:column;align-items:center;text-align:center}.profile-preview img{width:42px;height:42px}.profile-preview strong{font-size:11px}.profile-preview span{font-size:10px;color:#8992a2}.profile-preview b{font-size:12px;color:#3d7ed9;margin:8px 0}.access-card{background:#fff;padding:20px;border-radius:22px;margin-top:25px}.access-card h2{font-size:17px;margin:0 0 16px}.access-card>a{display:flex;gap:13px;align-items:center;padding:14px 0;color:#838d9e;font-size:13px}.access-card>a+a{border-top:1px solid #edf0f6}.access-card strong{color:#5a6d8a}.access-card span{color:#7196d2;margin-left:auto}.browser-notice{font-size:12px;line-height:1.9;color:#5b7ca6;background:#e6efff;border-radius:15px;padding:15px;margin-top:20px}footer{text-align:center;color:#a4abba;font-size:11px;margin-top:28px} @media(max-width:560px){.page-header{height:60px}h1{font-size:19px}main{padding:22px 20px 32px}.download-card{padding:21px 15px;gap:11px}.download-card h2{font-size:18px}.download-card>img{width:53px;height:53px}.download-button{padding:10px 17px;min-width:65px;font-size:16px}.steps{grid-template-columns:1fr}.step{padding:20px 22px}.phone-demo{max-width:230px}.step>p{min-height:0}.guide>h2{font-size:24px}.guide-intro{margin-bottom:24px}}


/* Refined brand-consistent distribution page. */
body{min-height:100dvh;background-repeat:no-repeat;background:linear-gradient(180deg,#e9f3ff 0,#f6f9fe 440px,#f6f9fe);color:#293c55}
.site-bar{max-width:960px;margin:auto;padding:calc(18px + env(safe-area-inset-top)) 24px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-bar img{display:block;object-fit:contain}.site-entry{font-size:13px;color:#657e9e;display:flex;gap:10px;align-items:center}
.download-page{max-width:900px;margin:auto;padding:14px 24px max(28px,env(safe-area-inset-bottom))}
.download-panel{display:grid;grid-template-columns:minmax(0,1fr) 270px;align-items:center;gap:40px;padding:38px;background:#fff;border:1px solid #e0ebf8;border-radius:28px;box-shadow:0 14px 45px #547baf0a}
.download-copy{min-width:0}.app-intro{display:flex;align-items:center;gap:18px}.app-icon{width:76px;height:76px;flex:none;border-radius:18px;border:1px solid #e3eaf4;box-shadow:0 4px 12px #19334a08}
.eyebrow{margin:0 0 5px;font-size:11px;color:#7d98bc;letter-spacing:2px}.app-intro h1{margin:0;font-size:25px;line-height:1.3;letter-spacing:0;font-weight:650;color:#2c405c}.app-kind{margin:7px 0 0;font-size:12px;color:#8795a8}
.intro{font-size:17px;line-height:1.8;color:#60738e;margin:26px 0 22px}
.platform-tabs{width:100%;margin:0 0 16px;display:grid;grid-template-columns:1fr 1fr;gap:4px;border-radius:13px;padding:4px;background:#f0f4fa}
.platform-tabs button{padding:11px 6px;font-size:13px;border-radius:10px;color:#8493a8}.platform-tabs button[aria-pressed=true]{color:#447bc6;box-shadow:0 2px 7px #5174a715}
.download-panel .download-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:49px;margin:0;border-radius:13px;padding:13px 16px;color:#fff;background:linear-gradient(100deg,#659ef3,#4c86e1);font-size:15px;font-weight:600;box-shadow:0 5px 14px #5189df25;white-space:normal;text-align:center}
.platform-hint{font-size:12px;line-height:1.8;margin:12px 0 0;color:#788aa2}
.qr-card{text-align:center;background:#f7faff;border:1px solid #e8eff9;border-radius:20px;padding:21px 14px 15px}.qr-label{font-size:13px;color:#536e90}.qr-card>a{display:block;width:220px;max-width:100%;margin:10px auto 5px;line-height:0}.qr-card img{display:block;width:100%;height:auto;image-rendering:pixelated;border-radius:8px}.qr-card p{font-size:11px;color:#7890b0;line-height:1.7;margin:10px 0 0}.qr-card p span{color:#a1aec0}
.installation{margin-top:20px;border:1px solid #e4edf9;border-radius:20px;background:#fff;overflow:hidden}.installation summary{padding:21px 24px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none}.installation summary::-webkit-details-marker{display:none}.installation summary>b{font-size:15px}.installation summary small{display:block;margin-top:6px;font-size:11px;color:#95a2b6;font-weight:400}.summary-arrow{font-size:21px;color:#94aac5;transition:transform .15s}.installation[open] .summary-arrow{transform:rotate(180deg)}.guide-content{padding:8px 24px 0;border-top:1px solid #edf2fa}.guide>h2{font-size:21px;text-align:left;margin-top:20px;color:#425d80}.guide>h2 span{font-size:16px}.guide-intro{text-align:left;margin:10px 0 20px;font-size:12px}.step{padding:20px 18px;border:1px solid #e7edf6;border-radius:16px;background:#fcfdff}.step h3{font-size:14px}.step>p{font-size:12px;color:#8292a8}.phone-demo{border-width:4px;max-width:210px;min-height:270px}.guide-note{font-size:11px;color:#8598b1}.browser-notice{font-size:11px;margin:14px 0 0;padding:12px;border-radius:10px}
.web-access{margin-top:27px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.section-heading h2{font-size:15px;margin:0;color:#607693}.section-heading>span{font-size:11px;color:#9baac0}.web-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}.web-links>a{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid #e3ecf8;background:#fff;border-radius:15px;padding:17px 20px}.web-links small{display:block;font-size:10px;color:#9aa8ba;margin-bottom:5px}.web-links strong{font-size:15px;font-weight:550;color:#587597}.web-links>a>span{color:#8faad0;font-size:18px}
footer{display:flex;justify-content:center;align-items:center;gap:7px;color:#a3afc1;font-size:11px;margin-top:28px}footer img{opacity:.7}
@media(max-width:600px){.site-bar{padding:calc(16px + env(safe-area-inset-top)) 20px 14px}.site-bar img{width:140px;height:38px}.site-entry{font-size:12px}.download-page{padding:8px 16px max(25px,env(safe-area-inset-bottom))}.download-panel{grid-template-columns:minmax(0,1fr);gap:22px;padding:24px 22px;border-radius:23px}.app-intro{gap:15px}.app-icon{width:68px;height:68px;border-radius:16px}.app-intro h1{font-size:23px}.intro{font-size:15px;margin:22px 0 18px}.qr-card{padding:14px;display:grid;grid-template-columns:112px minmax(0,1fr);align-items:center;gap:0 14px;text-align:left;border-radius:15px}.qr-label{grid-column:2;grid-row:1;align-self:end;font-size:13px}.qr-card>a{width:112px;margin:0;grid-column:1;grid-row:1 / span 2}.qr-card p{grid-column:2;grid-row:2;align-self:start;font-size:10px}.installation{margin-top:16px;border-radius:17px}.installation summary{padding:18px 20px;font-size:14px}.guide-content{padding:0 15px}.steps{grid-template-columns:1fr;gap:12px}.step{padding:18px 16px}.web-access{margin-top:23px}.web-links>a{padding:15px}.section-heading>span{font-size:10px}}
@media(prefers-reduced-motion:reduce){.summary-arrow{transition:none}}

/* Direct download only, without a QR section. */
.download-panel{display:block;max-width:620px;margin-inline:auto}.download-copy{max-width:460px;margin-inline:auto}.installation,.web-access{max-width:620px;margin-inline:auto}

.site-bar{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
.download-page{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
.platform-tabs button{min-height:44px}
@media(max-width:600px){.site-bar{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}.download-page{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}}