:root{color-scheme:light;--ink:#182333;--muted:#6d7888;--line:#e4e8ef;--accent:#225bdf;--accent-soft:#edf3ff;--bg:#f5f7fa;--white:#fff;--danger:#bd3341;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}
body{margin:0;min-width:280px}
button,input,select{font:inherit}
button,a,input{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.52}
a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #9cbbff;outline-offset:3px}
button,input{touch-action:manipulation}
button{border:0}
input{min-width:0}
h1,h2,h3,p{margin:0}
button:disabled .spinner{opacity:1}
[hidden]{display:none!important}
.site-header{height:76px;max-width:1120px;margin:auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:700;font-size:18px;letter-spacing:.02em}
.brand-symbol{width:35px;height:35px;border-radius:11px;background:#225bdf;color:white;display:inline-flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}
.app-main{max-width:1040px;margin:32px auto 0;padding:0 32px 50px}
.eyebrow{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.1em}
.hero{padding:22px 0 30px}
.hero h1{font-size:32px;line-height:1.4;font-weight:700;letter-spacing:-.03em;margin:10px 0}
.hero p{color:var(--muted);font-size:14px;line-height:1.8}
.overview{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(230px,.8fr);gap:28px}
.platform-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.platform-card{background:white;border:1px solid var(--line);border-radius:18px;padding:24px;transition:border-color .2s,transform .2s;display:flex;flex-direction:column;gap:22px;min-height:180px}
.platform-card:hover{border-color:#9ab5ef;transform:translateY(-2px)}
.platform-top{display:flex;align-items:center;gap:13px}
.platform-mark{width:44px;height:44px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;background:#ffe570;color:#322d1f;font-size:22px;font-weight:800;flex-shrink:0}
.platform-mark.ele{background:#e3f4ff;color:#008cdb}
.platform-mark.jd{background:#fff0ee;color:#d73028}
.platform-title{font-size:17px;font-weight:700;line-height:1.5}
.platform-subtitle{font-size:12px;color:var(--muted);margin-top:3px}
.card-link{font-size:13px;color:var(--accent);display:flex;justify-content:space-between;align-items:center}
.side-note{border-radius:18px;padding:28px;background:#edf2f8;align-self:start}
.side-note h2{font-size:16px;margin-bottom:22px}
.steps{list-style:none;margin:0;padding:0;counter-reset:step}
.steps li{position:relative;padding-left:35px;font-size:13px;line-height:1.7;margin-bottom:24px;color:var(--muted)}
.steps li:last-child{margin-bottom:0}
.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:1px;border:1px solid #ced8e5;border-radius:50%;width:23px;height:23px;text-align:center;font-size:11px;color:#627084}
.steps strong{display:block;color:#39475b;font-size:13px;font-weight:600}
.quiet{font-size:12px;line-height:1.8;color:var(--muted)}
.note-divider{border-top:1px solid #dce4ef;padding-top:20px;margin-top:24px}
.footer{font-size:12px;color:#8a94a3;text-align:center;padding:24px 16px calc(24px + env(safe-area-inset-bottom));line-height:1.8}
.footer a{margin:0 10px}
.footer .copyright{margin-top:9px;font-size:11px}
.login-layout{max-width:480px;margin:8px auto 0}
.back-link{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:13px;margin-bottom:20px}
.login-card{background:white;border:1px solid var(--line);border-radius:22px;overflow:hidden}
.login-heading{padding:30px 28px 24px;display:flex;gap:14px;align-items:center}
.login-heading h1{font-size:22px;font-weight:700}
.login-heading p{font-size:12px;margin-top:7px;color:var(--muted);line-height:1.7}
.tabs{display:flex;margin:0 28px;padding:4px;background:#f2f4f7;border-radius:11px;gap:3px}
.tab{flex:1;padding:10px 4px;border-radius:8px;background:transparent;font-size:13px;color:var(--muted);white-space:nowrap}
.tab.active{background:#fff;color:var(--ink);box-shadow:0 2px 5px #2233550d;font-weight:600}
.login-body{padding:28px}
.field{display:block;margin-bottom:22px}
.field-label{display:block;font-size:13px;font-weight:600;margin-bottom:9px}
.input-wrap{display:flex;border:1px solid #dce2eb;border-radius:10px;overflow:hidden;background:#fff;align-items:center}
.input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #225bdf0c}
.input-wrap input{width:100%;border:0;outline:0;padding:14px;font-size:16px;color:var(--ink);background:transparent;height:50px}
.input-wrap input::placeholder{color:#a2aab7}
.input-wrap:has(input:disabled){background:#f6f7f9}
.text-button{background:transparent;color:var(--accent);font-size:13px;padding:10px 13px;white-space:nowrap;line-height:1.5}
.reveal-button{color:var(--muted);font-size:12px}
.primary{display:inline-flex;justify-content:center;align-items:center;gap:8px;width:100%;min-height:48px;padding:13px 18px;border-radius:10px;background:var(--accent);color:white;font-size:14px;font-weight:600;line-height:1.5}
.primary:hover:not(:disabled){background:#174bcc}
.secondary{background:#f0f3f8;color:#46546a;border-radius:9px;padding:12px 16px;min-height:44px;font-size:13px}
.checkbox-row{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-bottom:22px}
.checkbox-row input{width:16px;height:16px;accent-color:var(--accent)}
.form-hint{font-size:12px;color:var(--muted);text-align:center;line-height:1.8;margin-top:16px}
.login-tools{display:flex;justify-content:center;gap:10px;padding-top:14px}
.tool{color:#738097;background:transparent;font-size:12px;padding:10px}
.feedback{border-radius:9px;font-size:13px;line-height:1.7;padding:12px 14px;margin:0 0 18px;overflow-wrap:anywhere}
.feedback.error{background:#fff0f0;color:var(--danger);border:1px solid #f8dadd}
.feedback.info{background:#edf4ff;color:#315b94}
.empty-panel{background:white;border:1px solid var(--line);border-radius:18px;padding:32px;line-height:1.8;max-width:600px;margin:24px auto}
.empty-panel h1{font-size:23px;margin-bottom:12px}
.empty-panel .primary{margin-top:22px}
.empty-panel p{font-size:14px;color:var(--muted)}
.meta-row{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:16px 0;font-size:14px;word-break:break-all}
.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;inset:0;z-index:30;background:#15223978;display:flex;align-items:center;justify-content:center;padding:20px 16px calc(20px + env(safe-area-inset-bottom));overflow:auto}
.modal{width:100%;max-width:440px;max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow:auto;background:white;border-radius:20px;box-shadow:0 20px 70px #14243326;padding:24px;overscroll-behavior:contain}
.modal-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.modal h2{font-size:19px;line-height:1.4}
.close-button{background:#f2f4f7;color:#6e7887;width:32px;height:32px;border-radius:50%;font-size:21px;flex-shrink:0}
.modal-description{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:20px}
.modal .field{margin-bottom:18px}
.modal-actions{display:flex;gap:10px;margin-top:22px}
.modal-actions>*{flex:1}
.modal-actions .secondary{flex:.5}
.spinner{width:15px;height:15px;display:inline-block;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}
}
.busy-caption{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;justify-content:center;margin-top:13px}
.captcha-question{width:100%;max-height:70px;object-fit:contain;margin-bottom:12px}
.captcha-board{width:100%;max-width:360px;position:relative;margin:auto;overflow:hidden;border:1px solid #e1e5ec;border-radius:8px;background:#f1f3f6;line-height:0}
.captcha-board>img{display:block;width:100%;height:auto;pointer-events:none;user-select:none;-webkit-user-drag:none}
.captcha-marker{position:absolute;top:0;left:0;width:13.888889%;aspect-ratio:1;background:#f4433640;touch-action:none;cursor:grab;border:2px solid #ed4d44;border-radius:5px;display:flex;align-items:center;justify-content:center;line-height:1;user-select:none;min-height:28px}
.captcha-marker img{width:100%;height:100%;pointer-events:none}
.captcha-marker:active{cursor:grabbing}
.captcha-cover{position:absolute;top:0;bottom:0;right:0;background:#b78b61;touch-action:none;cursor:ew-resize;display:flex;align-items:center;color:white;font-size:30px;padding-left:10px;line-height:1}
.captcha-controls{display:flex;align-items:center;gap:12px;margin-top:14px}
.captcha-controls input{width:100%;accent-color:var(--accent)}
.nudge{width:36px;height:36px;flex-shrink:0;border-radius:8px;background:#f0f3f8;color:#43516a;font-size:19px}
.selection-list{display:flex;flex-direction:column;gap:8px;max-height:45vh;overflow:auto}
.selection-item{border:1px solid var(--line);border-radius:10px;padding:13px;display:flex;align-items:center;gap:11px;cursor:pointer;font-size:14px;line-height:1.5;overflow-wrap:anywhere}
.selection-item:has(input:checked){border-color:#86a9f2;background:#f5f8ff}
.selection-item input{accent-color:var(--accent);width:17px;height:17px;flex-shrink:0}
.selection-item small{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.qr-box{display:flex;align-items:center;justify-content:center;max-width:220px;min-height:180px;margin:16px auto}
.qr-box img{display:block;width:100%;height:auto}
.qr-payload{font-size:12px;background:#f4f6f9;border-radius:8px;padding:12px;word-break:break-all;line-height:1.6;user-select:all}
.success-icon{width:60px;height:60px;border-radius:50%;background:#e9f7f0;color:#258b61;font-size:30px;display:flex;align-items:center;justify-content:center;margin:4px auto 18px}
.success-title{text-align:center;margin-bottom:20px!important}
.success-shop{background:#f6f8fb;padding:13px;border-radius:10px;margin:8px 0;font-size:14px;line-height:1.7;word-break:break-all}
.success-shop small{display:block;color:var(--muted);font-size:12px}
.screenshot{display:block;max-width:100%;height:auto;border-radius:8px}
.toast{position:fixed;bottom:calc(28px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);z-index:60;padding:12px 18px;border-radius:10px;max-width:90%;background:#19273eea;color:white;font-size:13px;line-height:1.6;box-shadow:0 5px 25px #18233820}
.watermark{position:fixed;top:0;right:0;bottom:0;left:0;inset:0;z-index:45;pointer-events:none;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(7,1fr);overflow:hidden}
.watermark span{color:rgba(23,32,50,.10);transform:rotate(-25deg);align-self:center;text-align:center;font-size:14px;white-space:nowrap;user-select:none}
.startup{text-align:center;padding:20vh 20px}
.startup h1{font-size:24px;margin:16px}
.startup p,.fallback{color:var(--muted);font-size:14px}
.qr-start{padding:12px 0 6px;text-align:center}
.qr-start .qr-placeholder{width:76px;height:76px;background:#eef3fb;border-radius:20px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--accent)}
.qr-start p{margin:12px 0 22px}
.unsupported{padding:12px 20px;background:#fff3df;color:#7e5b26;font-size:13px}
.badge{display:inline-flex;padding:2px 6px;border-radius:5px;font-size:10px;background:#eef2f7;color:#748196;margin-left:5px;vertical-align:middle}
.pending-view{text-align:center;padding:24px 0;color:var(--muted);font-size:13px}
.mobile-note{display:none}
@media(max-width:700px){.site-header{height:65px;padding:0 22px}
.brand{font-size:16px}
.brand-symbol{width:31px;height:31px;font-size:18px}
.app-main{margin:10px auto 0;padding:0 20px 25px}
.hero{padding:20px 0 26px}
.hero h1{font-size:28px}
.hero p{font-size:13px}
.overview{display:block}
.platform-list{gap:12px}
.platform-card{padding:19px 16px;min-height:160px;gap:24px}
.platform-top{gap:10px}
.platform-mark{width:38px;height:38px;font-size:20px;border-radius:11px}
.platform-title{font-size:16px}
.platform-subtitle{font-size:11px}
.side-note{margin-top:22px;padding:22px}
.steps{display:flex;gap:15px}
.steps li{flex:1;padding-left:0;padding-top:32px;font-size:11px;margin:0}
.steps li:before{top:0}
.steps strong{font-size:12px}
.note-divider{margin-top:19px;padding-top:16px}
.login-layout{margin-top:12px;max-width:440px}
.login-heading{padding:26px 22px 22px}
.login-body{padding:24px 22px}
.tabs{margin:0 22px}
.login-heading h1{font-size:21px}
.login-card{border-radius:18px}
.back-link{margin-bottom:17px}
.footer{padding-top:15px}
.modal{padding:21px;max-width:420px;border-radius:18px}
.modal-backdrop{padding:12px}
}
@media(max-width:350px){.app-main{padding:0 14px}
.platform-card{padding:16px 12px}
.platform-top{gap:8px}
.platform-mark{width:32px;height:32px;font-size:18px}
.platform-title{font-size:14px}
.platform-subtitle{font-size:10px}
.login-body{padding:20px 18px}
.tabs{margin:0 18px}
.tab{font-size:12px}
.modal{padding:18px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition:none!important}
}
 

.platform-card:last-child:nth-child(odd){grid-column:1/-1;min-height:135px}


.screenshot-frame{max-height:55vh;overflow:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:8px}
.screenshot-frame.enlarged .screenshot{max-width:none;width:auto}
.screenshot-frame+.text-button{display:block;margin:6px auto}