:root{color-scheme:light;--paper:#fffefb;--ink:#25312d;--sub:#667469;--green:#285d47;--soft:#f1f5ee;--line:#dfe7dc;--error:#a23e32;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f5f6f1;color:var(--ink)}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,summary{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent }button{cursor:pointer}button:disabled{cursor:default;opacity:.45}[hidden]{display:none!important}a{color:var(--green);text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a1c9ad;outline-offset:3px}p,h1,h2,h3{margin:0}.app{width:min(100%,480px);margin:auto;min-height:100svh;background:var(--paper);padding:27px 23px 30px}header,.section-head,.link-row{display:flex;align-items:center;justify-content:space-between;gap:12px}header{margin-bottom:38px}.brand{text-decoration:none;display:flex;align-items:center;gap:9px;font-size:21px;font-weight:600;letter-spacing:2px}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--soft);font-size:17px;font-weight:500;letter-spacing:0}.edition{font-size:12px;color:var(--sub)}.intro{margin-bottom:25px}.eyebrow{color:var(--green);font-size:12px;letter-spacing:2px;margin-bottom:11px}h1{font-size:34px;letter-spacing:-1px;font-weight:500;line-height:1.3;margin-bottom:13px}.intro>p:last-child{color:var(--sub);font-size:14px;line-height:1.8;max-width:340px}.steps{display:flex;justify-content:space-between;list-style:none;gap:8px;padding:0;margin:0 0 25px;font-size:12px;color:var(--sub)}.steps li{display:flex;align-items:center;gap:6px}.steps li span{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--soft)}.steps .active{color:var(--green)}.steps .active span{background:var(--green);color:#fff}.panel{border:1px solid var(--line);border-radius:19px;padding:20px;margin-bottom:16px}.section-head{align-items:flex-start;margin-bottom:21px}h2{font-size:18px;font-weight:500;line-height:1.5}.tag,.status{flex-shrink:0;font-size:11px;border-radius:7px;background:var(--soft);color:var(--sub);padding:4px 7px;white-space:nowrap}.status.ok{color:var(--green)}label:not(.check){display:block;font-size:13px;margin:0 0 8px}input[type=text],select{width:100%;background:var(--paper);border:1px solid #ccd8c9;border-radius:11px;padding:12px;color:var(--ink);font-size:16px;min-height:48px}input::placeholder{color:#818d81}input[type=text]:focus,select:focus{border-color:var(--green)}.hint,.small{font-size:12px;color:var(--sub);line-height:1.7}.hint{margin-top:9px}.error{font-size:13px;line-height:1.6;color:var(--error);margin-top:7px;min-height:21px}.primary,.secondary{border-radius:12px;min-height:48px;font-size:14px;font-weight:500;padding:12px 15px}.primary{background:var(--green);color:#fff;border:1px solid var(--green)}.secondary{background:var(--paper);color:var(--green);border:1px solid var(--line)}.full{width:100%;display:block}.text-button{border:0;background:transparent;color:var(--green);padding:10px 0;font-size:13px;min-height:44px;text-align:left}.saved{padding:2px 0}.book-name{font-size:25px;font-weight:500;line-height:1.6;margin-top:6px;overflow-wrap:anywhere}.browser-help{background:var(--soft);padding:15px;border-radius:12px;margin-top:16px;font-size:13px;line-height:1.8}.browser-help strong{font-weight:500}.browser-help>p{margin-top:7px}.link-row{justify-content:flex-start;gap:20px;flex-wrap:wrap}.link-row a{font-size:13px}.browser-help .hint{font-size:11px}#connect-device{margin-top:18px}.connected-controls{display:grid;gap:11px;margin-top:17px}.device-book{padding:13px;background:var(--soft);border-radius:12px}.device-book p{font-size:15px;overflow-wrap:anywhere;margin-top:4px}.message{font-size:13px;color:var(--sub);line-height:1.8;margin-top:14px}.message.error{color:var(--error)}.message.success{color:var(--green)}.meet{border-top:1px solid var(--line);padding-top:18px;margin-top:19px}.meet h3{font-size:16px;font-weight:500}.meet>p{font-size:13px;line-height:1.8;color:var(--sub);margin-top:7px}.check{display:flex;align-items:center;gap:9px;min-height:48px;margin:8px 0;font-size:13px}.check input{width:18px;height:18px;accent-color:var(--green)}.help{font-size:13px;color:var(--sub);line-height:1.8;margin-top:6px}.help summary{min-height:48px;padding:11px 2px;cursor:pointer;color:var(--green)}.help>div{padding:4px 2px 15px}.help p{margin-bottom:12px}.help b{font-weight:500}footer{border-top:1px solid var(--line);padding:23px 0 0;margin-top:16px;display:flex;gap:15px;align-items:center;color:var(--sub);font-size:11px}footer>span{font-size:13px;letter-spacing:2px;color:var(--green)}@media(min-width:650px){.app{margin:30px auto;border:1px solid var(--line);border-radius:25px;min-height:0;padding:30px}}@media(max-width:360px){.app{padding:22px 16px}h1{font-size:30px}.panel{padding:17px}.steps{font-size:11px}.section-head{gap:6px}h2{font-size:17px}}