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.account-profile{display:flex;align-items:center;gap:12px;min-width:0}.account-dialog .account-profile-avatar{display:grid;place-items:center;flex:none;width:36px;height:36px;border:1px solid var(--account-border);border-radius:50%;background:var(--account-field);color:var(--account-accent)}.account-dialog .account-profile-avatar svg{width:18px;height:18px;stroke-width:1.6}.account-dialog .account-username{display:block;font-size:15px;font-weight:500;overflow-wrap:anywhere}.account-dialog .account-nav-row{display:flex;align-items:center;gap:10px;width:100%;min-height:44px;padding:10px 0;border:0;border-bottom:1px solid var(--line);border-radius:0;background:none;color:var(--account-ink);font-size:14px;text-decoration:none;text-align:left}.account-dialog .account-nav-row:hover{color:var(--account-accent)}.account-dialog .account-row-note{margin-left:auto;color:var(--account-muted);font-size:11px}.account-dialog .account-chevron{margin-left:auto;color:var(--account-muted);font-size:20px;line-height:1;width:14px;text-align:center}.account-dialog .account-nav-row>svg{width:18px;height:18px;color:var(--account-muted);stroke-width:1.6;flex:none}.account-dialog .account-exit{display:grid;gap:4px;padding-top:2px;text-align:center}.account-dialog .account-text-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:36px;border:0;padding:8px;background:none;color:var(--ink-muted);text-align:center;font-size:13px}.account-dialog .account-exit p{color:var(--account-muted);font-size:10px;line-height:1.6}.account-dialog .account-error{color:#f0b2a9;background:#512e2c33;border:1px solid #89595466;padding:10px 12px;border-radius:6px;font-size:12px;line-height:1.7}.account-dialog .account-dialog-body>.account-error{margin-block:16px}.account-dialog .account-primary{display:flex;align-items:center;justify-content:center;width:100%;padding:13px 18px;border-radius:7px;border:1px solid var(--accent-strong);background:var(--account-accent);color:var(--surface-0);font-weight:600;line-height:1.6;text-align:center}.account-dialog .account-primary:hover{background:var(--accent-strong)}.account-dialog .identity-frame-shell{position:relative;min-width:0;min-height:0;overflow:auto;overscroll-behavior:contain}.account-dialog .identity-frame-shell.is-loading{min-height:min(360px,calc(100dvh - 108px))}.account-dialog .identity-account-frame{width:100%;display:block;max-height:calc(100dvh - 108px);border:0;background:transparent}.account-dialog .identity-account-frame.is-loading{visibility:hidden}.account-dialog .account-frame-status{display:grid;gap:16px;padding:4px 28px 28px}.account-dialog .identity-frame-loading{position:absolute;top:0;right:0;bottom:0;left:0;margin:0;align-content:center;justify-items:center;min-height:180px;color:var(--account-muted);pointer-events:none;font-size:13px}.account-dialog .account-loading-dot{width:22px;height:22px;border:2px solid var(--account-border);border-top-color:var(--account-accent);border-radius:50%;animation:account-loading 1s linear infinite}@keyframes account-loading{to{transform:rotate(360deg)}}@keyframes account-open{0%{opacity:0;transform:translateY(8px) scale(.985)}to{opacity:1;transform:none}}@media(max-width:540px){.account-entry-copy{display:none}}@media(max-width:380px){.account-dialog .account-shell-header,.account-dialog .account-dialog-body,.account-dialog .account-frame-status{padding-inline:20px}}@media(prefers-reduced-motion:reduce){.account-dialog[open],.account-dialog .account-loading-dot{animation:none}}:root{color-scheme:dark;font-family:Microsoft YaHei,PingFang SC,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;--ink-strong: #f7f1f3;--ink: #d9cbd1;--ink-muted: #a8929c;--surface-0: #140f12;--surface-1: #1d151a;--surface-2: #2b1e25;--surface-raised: #3b2831;--surface-active: #603541;--line: rgba(224, 178, 193, .22);--line-strong: #79515f;--accent: #f29eab;--accent-strong: #ffd0d7;--accent-rgb: 242, 158, 171;--warning: #ffbf69;--danger: #ff718a;--radius-sm: 8px;--radius-md: 14px;--shadow-glow: 0 0 32px rgba(var(--accent-rgb), .14)}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-width:320px;color:var(--ink);background:var(--surface-0)}button,input,select,a{font:inherit}a{color:inherit}button{cursor:pointer}button:disabled{cursor:default}:is(a,button,input,select,summary):focus-visible{outline:2px solid var(--accent);outline-offset:3px}.eyebrow{margin:0;color:var(--accent);font:600 .72rem/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em}.not-found{display:grid;justify-items:start;gap:16px;width:min(800px,100%);margin:auto;padding:10dvh 24px}.not-found h1,.not-found p{margin:0}.not-found h1{color:var(--ink-strong);font-size:clamp(26px,4vw,40px)}.not-found>a{margin-top:10px;padding:12px 18px;border:1px solid var(--line-strong);border-radius:8px;color:var(--accent-strong);text-decoration:none}.classroom-notice{position:fixed;z-index:100;display:flex;align-items:center;gap:16px;inset:auto 20px 20px;width:fit-content;max-width:calc(100% - 40px);margin-inline:auto;padding:12px 16px;border:1px solid #9b7750;border-radius:8px;background:var(--surface-1);color:#f2dcc3;font-size:14px;line-height:1.5;box-shadow:0 8px 30px #0006}.classroom-notice button{flex:none;border:0;padding:6px;background:transparent;color:inherit}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}