:root{--font-family-sans:Inter, "PingFang HK", "Noto Sans TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;--layout-review-max-width:1680px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:32px;--space-8:48px;--font-size-caption:11px;--font-size-small:12px;--font-size-body:14px;--font-size-control:13px;--font-size-section:16px;--font-size-title:25px;--font-weight-control:720;--line-height-body:1.6;--control-height:40px;--control-radius:10px;--color-navigation:#101f3d;--color-brand:#ff8a36;--color-brand-hover:#f77b22;--color-brand-soft:#fff2e7;--gradient-brand:linear-gradient(145deg, #ff9a50, #ff7a1f);--gradient-progress:linear-gradient(90deg, var(--color-brand), #ffb15f);--color-text-primary:#182033;--color-text-secondary:#667083;--color-text-tertiary:#8a93a3;--color-text-on-dark:#fff;--color-page-bg:#f5f7fa;--color-surface:#fff;--color-surface-subtle:#f8fafc;--color-surface-hover:#fbfcff;--color-border:#e7eaf0;--color-border-strong:#c8cfdb;--color-success:#188568;--color-success-soft:#eaf7f2;--color-warning:#b26b00;--color-warning-soft:#fff5dd;--color-danger:#c84545;--color-danger-soft:#fceeee;--color-info:#3367d6;--color-info-soft:#edf3ff;--color-review:#6f52b5;--color-review-soft:#f2effb;--color-overlay:#0a162b52;--color-overlay-strong:#0a162b6b;--shadow-card:0 12px 40px #111f3d14;--shadow-drawer:-20px 0 60px #0a162b2e;--shadow-modal:0 24px 70px #0a162b40;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-full:999px}*{box-sizing:border-box}html{background:var(--color-page-bg);min-width:320px}body{color:var(--color-text-primary);background:var(--color-page-bg);font-family:var(--font-family-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}#root,.app{min-height:100vh}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb, var(--color-info) 24%, transparent);outline-offset:2px}.route-loading{place-items:center;min-height:calc(100vh - 70px);display:grid}.route-loading span{border:3px solid var(--color-border);border-top-color:var(--color-brand);border-radius:var(--radius-full);width:32px;height:32px;animation:.7s linear infinite route-spin}@keyframes route-spin{to{transform:rotate(360deg)}}@media 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var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);width:min(420px,100%);box-shadow:var(--shadow-card);text-align:center;padding:36px 32px}.app-error__icon{border-radius:var(--radius-full);background:var(--color-brand-soft);width:44px;height:44px;color:var(--color-brand);place-items:center;margin:0 auto 18px;font-size:22px;font-weight:800;display:grid}.app-error__eyebrow{color:var(--color-text-tertiary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-size:11px;font-weight:700}.app-error h1{color:var(--color-text-primary);margin:0;font-size:20px}.app-error p{color:var(--color-text-secondary);margin:12px 0 22px;font-size:13px;line-height:1.7}.app-error button{border-radius:var(--radius-sm);background:var(--color-brand);min-height:38px;color:var(--color-text-on-dark);border:0;padding:0 20px;font-weight:700}.app-error button:hover{background:var(--color-brand-hover)}.app-error button:focus-visible{outline:3px solid var(--color-brand-soft);outline-offset:3px}.brand{color:var(--color-navigation);align-items:center;gap:12px;display:inline-flex}.brand[data-inverted=true]{color:var(--color-text-on-dark)}.brand__mark{width:36px;height:36px;color:var(--color-text-on-dark);background:var(--gradient-brand);box-shadow:0 6px 16px color-mix(in srgb, var(--color-brand) 25%, transparent);border-radius:10px;flex:none;place-items:center;display:grid}.brand__mark svg{width:22px}.brand__name{letter-spacing:.4px;font-size:17px;font-weight:760}.brand__english{color:var(--color-text-tertiary);letter-spacing:1.4px;margin-top:2px;font-size:10px}.brand[data-inverted=true] .brand__english{color:color-mix(in srgb, var(--color-text-on-dark) 62%, transparent)}.lang-toggle{width:32px;height:32px;color:var(--color-text-on-dark);background:color-mix(in srgb, var(--color-text-on-dark) 7%, transparent);border:1px solid color-mix(in srgb, var(--color-text-on-dark) 22%, 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0;display:grid}.auth-shell__context{color:var(--color-text-on-dark);background:var(--color-navigation);box-shadow:var(--shadow-card);border-radius:28px;padding:44px}.auth-shell__symbol{width:70px;height:70px;color:var(--color-text-on-dark);background:var(--gradient-brand);box-shadow:0 16px 40px color-mix(in srgb, var(--color-brand) 28%, transparent);border-radius:20px;place-items:center;display:grid}.auth-shell__symbol svg{width:42px}.auth-shell__context p{color:var(--color-brand);letter-spacing:.2em;margin:30px 0 10px;font-size:12px;font-weight:800}.auth-shell__context span{max-width:390px;color:color-mix(in srgb, var(--color-text-on-dark) 78%, transparent);font-size:20px;font-weight:650;line-height:1.55;display:block}.auth-card{border:1px solid var(--color-border);background:var(--color-surface);width:100%;box-shadow:var(--shadow-card);border-radius:20px;padding:36px}.auth-card__eyebrow{color:var(--color-brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:9px;font-size:11px;font-weight:800}.auth-card h1{letter-spacing:-.5px;margin:0;font-size:25px}.auth-card__description{color:var(--color-text-secondary);margin:9px 0 25px;font-size:12px;line-height:1.65}.auth-card__footer{border-top:1px solid var(--color-border);color:var(--color-text-tertiary);margin-top:24px;padding-top:18px;font-size:10px;line-height:1.6}@media (width<=820px){.auth-shell{padding:20px}.auth-shell__content{grid-template-columns:1fr;gap:20px}.auth-shell__context{display:none}.auth-card{width:min(430px,100%);margin:0 auto}}@media (width<=480px){.auth-shell{padding:16px}.auth-card{padding:26px 22px}}.safe-error{border:1px solid color-mix(in srgb, var(--color-danger) 24%, var(--color-surface));border-radius:var(--radius-sm);color:var(--color-danger);background:var(--color-danger-soft);align-items:flex-start;gap:9px;padding:11px 12px;font-size:12px;line-height:1.55;display:flex}.safe-error__icon{border-radius:var(--radius-full);width:18px;height:18px;color:var(--color-text-on-dark);background:var(--color-danger);flex:none;place-items:center;font-size:11px;font-weight:800;display:grid}.safe-error__message,.safe-error__request{display:block}.safe-error__request{color:var(--color-text-secondary);word-break:break-all;margin-top:2px;font-size:10px}.session-loading{min-height:100vh;color:var(--color-text-secondary);background:var(--color-page-bg);align-content:center;justify-items:center;gap:14px;font-size:12px;display:grid}.session-loading__mark{border:3px solid var(--color-border);border-top-color:var(--color-brand);border-radius:var(--radius-full);width:34px;height:34px;animation:.7s linear infinite 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32px;display:grid;position:sticky;top:0}.topbar__nav{align-self:stretch;gap:8px;display:flex}.topbar__link{color:color-mix(in srgb, var(--color-text-on-dark) 65%, transparent);place-items:center;padding:0 14px;font-size:13px;font-weight:650;text-decoration:none;display:grid;position:relative}.topbar__link:after{border-radius:var(--radius-full);content:"";background:0 0;height:2px;position:absolute;bottom:0;left:14px;right:14px}.topbar__link:hover,.topbar__link[aria-current=page]{color:var(--color-text-on-dark)}.topbar__link[aria-current=page]:after{background:var(--color-brand)}.top-actions{justify-self:end;align-items:center;gap:14px;display:flex}.account-menu{position:relative}.account-menu__trigger{min-height:44px;color:inherit;border-radius:var(--radius-sm);text-align:left;background:0 0;border:0;align-items:center;gap:9px;padding:4px 6px;display:flex}.account-menu__trigger:hover,.account-menu__trigger[aria-expanded=true]{background:color-mix(in srgb, var(--color-text-on-dark) 8%, transparent)}.avatar{width:32px;height:32px;color:var(--color-navigation);background:var(--color-info-soft);border-radius:50%;flex:none;place-items:center;font-size:11px;font-weight:780;display:grid}.account-menu__identity{display:grid}.account-menu__name{text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-size:12px;font-weight:700;overflow:hidden}.account-menu__chevron{color:color-mix(in srgb, var(--color-text-on-dark) 58%, transparent)}.account-menu__panel{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);width:250px;box-shadow:var(--shadow-modal);color:var(--color-text-primary);padding:10px;position:absolute;top:calc(100% + 8px);right:0}.account-menu__email{border-bottom:1px solid var(--color-border);color:var(--color-text-secondary);text-overflow:ellipsis;white-space:nowrap;padding:8px 10px 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16px}.topbar__nav{z-index:45;background:var(--color-navigation);height:56px;box-shadow:var(--shadow-card);justify-content:center;position:fixed;bottom:0;left:0;right:0}.topbar__link{min-width:0;padding-inline:var(--space-3);flex:1}.account-menu__identity,.account-menu__chevron{display:none}}