:root{--blue:#287cf6;--blue-dark:#1769db;--blue-pale:#edf4ff;--ink:#1e2b40;--muted:#718299;--line:#dfe7f1;--surface:#f4f7fb;--paper:#fff;--green:#19a267;--red:#d85b5b;--shadow:0 8px 24px rgba(33,74,128,0.08)}*{-webkit-box-sizing:border-box;box-sizing:border-box}body,html{margin:0;min-height:100%;background:#e2e9f2;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;letter-spacing:0}body{overflow-x:hidden}button,input,select{font:inherit;letter-spacing:0}button{cursor:pointer;-webkit-tap-highlight-color:transparent}button:disabled{cursor:default;opacity:.55}.toc-shell{min-height:100vh;background:var(--surface)}.toc-main{width:min(100%,720px);min-height:100vh;margin:0 auto;padding:0 14px 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26px;color:var(--red);font-size:12px;line-height:1.5}.agreement-link{padding:0;border:0;color:var(--blue);background:transparent;font-size:inherit}.submit-button{width:100%}.validation-overlay{position:absolute;z-index:18;inset:0;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;padding:24px;background:rgba(16,36,63,.44)}.validation-dialog{width:min(100%,290px);padding:28px 22px;border-radius:8px;background:#fff;-webkit-box-shadow:0 18px 50px rgba(10,32,62,.22);box-shadow:0 18px 50px rgba(10,32,62,.22);text-align:center}.validation-spinner{width:38px;height:38px;display:block;margin:0 auto 16px;border:4px solid #dceaff;border-top:4px solid var(--blue);border-radius:50%;-webkit-animation:validation-spin .8s linear infinite;animation:validation-spin .8s linear infinite}.validation-dialog h2{margin:0 0 8px;color:#172b46;font-size:18px}.validation-dialog p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.auth-error-toast{position:fixed;z-index:40;right:16px;bottom:calc(24px + env(safe-area-inset-bottom));left:16px;width:min(calc(100% - 32px),520px);margin:0 auto;padding:12px 15px;border-radius:7px;color:#fff;background:rgba(23,38,61,.95);-webkit-box-shadow:0 10px 30px rgba(12,30,54,.24);box-shadow:0 10px 30px rgba(12,30,54,.24);text-align:center;font-size:14px;line-height:1.5}@-webkit-keyframes validation-spin{to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}@keyframes validation-spin{to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}.simple-intro{padding-bottom:23px}.progress-card,.qr-card,.sms-card{padding:22px 18px}.step-indicator{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;margin:0 auto 25px;color:#a9b6c5;font-size:12px}.step-indicator 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infinite}.qr-scanned-overlay{position:absolute;inset:0;display:grid;place-content:center;gap:6px;border-radius:6px;color:#fff;background:rgba(35,45,58,.8);text-align:center}.qr-scanned-overlay.expired{background:rgba(66,72,82,.88)}.qr-scanned-overlay strong{font-size:18px;font-weight:600}.qr-scanned-overlay span{font-size:13px}.qr-help{margin:0 0 18px;color:var(--muted);text-align:center;font-size:12px;line-height:1.6}.wide-button{width:100%}.bind-page{min-height:calc(100vh - 36px);margin:0 -14px -36px;padding:max(54px,env(safe-area-inset-top)) 20px 40px;background:#f4f7fb;text-align:center}.bind-brand-mark{width:64px;height:64px;display:block;margin:0 auto 14px;border-radius:8px;-o-object-fit:cover;object-fit:cover;-webkit-box-shadow:0 10px 24px rgba(40,124,246,.25);box-shadow:0 10px 24px rgba(40,124,246,.25)}.bind-page>h1{margin:0 0 8px;color:#172b46;font-size:24px}.bind-page>p{max-width:400px;margin:0 auto 26px;color:var(--muted);font-size:13px;line-height:1.65}.bind-panel{width:min(100%,440px);margin:0 auto;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:#fff;-webkit-box-shadow:var(--shadow);box-shadow:var(--shadow);text-align:left}.bind-form{padding:20px 18px 22px}.bind-form>label{display:block;margin-bottom:8px;color:#233a57;font-size:13px;font-weight:700}.bind-form input{min-width:0;width:100%;height:48px;border:1px solid #cdd9e8;border-radius:7px;padding:0 13px;color:#18304e;outline:none}.bind-form input:focus{border-color:var(--blue);-webkit-box-shadow:0 0 0 3px rgba(40,124,246,.1);box-shadow:0 0 0 3px rgba(40,124,246,.1)}.bind-code-row{display:grid;grid-template-columns:minmax(0,1fr) 112px;gap:9px;margin-top:12px}.bind-code-row button{border:1px solid #b9d3fb;border-radius:7px;color:var(--blue);background:#f7faff;font-size:12px;font-weight:700}.bind-form>.bind-error{margin:7px 0 0;color:#f04438;font-size:12px;line-height:1.45}.bind-form>p{margin:10px 0 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