:root,[data-theme=white]{--color-bg:#f5f6f8;--color-surface:#fff;--color-text:#1f2937;--color-text-secondary:#6b7280;--color-border:#e5e7eb;--color-primary:#111827;--color-accent:#2563eb;--color-accent-soft:#eff6ff;--color-toolbar:#fff;--color-code-bg:#f3f4f6;--color-code-text:#1e40af;--color-danger:#dc2626;--color-success:#16a34a;--shadow:0 1px 3px 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#0006}[data-theme=yellow]{--color-bg:#fffbeb;--color-surface:#fff;--color-text:#422006;--color-text-secondary:#78350f;--color-border:#fde68a;--color-primary:#451a03;--color-accent:#d97706;--color-accent-soft:#fef3c7;--color-toolbar:#fef3c7;--color-code-bg:#fef9c3;--color-code-text:#92400e;--color-danger:#b91c1c;--color-success:#15803d}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;margin:0;font-family:Noto Sans SC,Inter,-apple-system,sans-serif;font-size:15px;line-height:1.7}#root{min-height:100vh}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 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100%);width:100%;height:100%}.auth-hero{z-index:2;text-align:center;pointer-events:none;flex-direction:column;justify-content:center;align-items:center;padding:32px 24px;transition:opacity .5s,transform .55s;display:flex;position:fixed;inset:0}.auth-hero--receded{opacity:0;transform:translateY(-28px)scale(.98)}.auth-hero-eyebrow{letter-spacing:.28em;color:#a78bfaf2;text-shadow:0 0 20px #8b5cf680;margin:0 0 12px;font-size:.72rem;font-weight:600}.auth-hero h1{letter-spacing:.08em;color:#fff;text-shadow:0 0 40px #8b5cf673,0 4px 24px #0000004d;margin:0 0 20px;font-size:clamp(2.5rem,6vw,4rem);font-weight:800;line-height:1.15}.auth-hero-desc{color:#ffffffe0;text-shadow:0 1px 12px #00000059;max-width:420px;margin:0 0 36px;font-size:clamp(.9rem,2vw,1.05rem);line-height:1.75}.auth-hero-cta{pointer-events:auto;color:#fff;letter-spacing:.2em;cursor:pointer;background:linear-gradient(135deg,#6366f1d9 0%,#d946efd9 100%);border:1px solid #ffffff59;border-radius:999px;padding:16px 52px;font-size:1.05rem;font-weight:700;transition:transform .25s,box-shadow .25s,filter .25s;box-shadow:0 0 32px #8b5cf673,0 8px 32px #00000040}.auth-hero-cta:hover{filter:brightness(1.08);transform:translateY(-2px)scale(1.02);box-shadow:0 0 48px #a78bfa8c,0 12px 40px #0000004d}.auth-panel-immersive{z-index:3;pointer-events:none;box-sizing:border-box;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.auth-panel-immersive--open{pointer-events:auto}.auth-form-card{opacity:0;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-sizing:border-box;background:#fffffff7;border-radius:20px;width:min(400px,100%);max-height:0;padding:0 28px;transition:max-height .9s cubic-bezier(.22,1,.36,1),opacity .55s 50ms,transform .75s cubic-bezier(.22,1,.36,1),padding .75s cubic-bezier(.22,1,.36,1);overflow:hidden;transform:scale(.92)translateY(20px);box-shadow:0 24px 80px #0006}.auth-form-card--open{opacity:1;max-height:min(88vh,680px);padding:28px 28px 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var(--auth-border);background:#fff;border-radius:6px;align-items:center;height:42px;transition:border-color .2s;display:flex}.auth-input-wrap:focus-within{border-color:#b39ddb}.auth-input-icon{width:40px;color:var(--auth-placeholder);flex-shrink:0;justify-content:center;align-items:center;display:flex}.auth-input{min-width:0;height:100%;color:var(--auth-title);background:0 0;border:none;flex:1;padding:0 12px 0 0;font-size:.875rem}.auth-input::placeholder{color:var(--auth-placeholder)}.auth-input:focus{outline:none}.auth-input-trailing{color:var(--auth-placeholder);cursor:pointer;flex-shrink:0;align-items:center;padding-right:12px;display:flex}.auth-row{align-items:stretch;gap:8px;display:flex}.auth-row .auth-input-wrap{flex:1;min-width:0}.auth-row--captcha .auth-input-wrap{flex:auto;max-width:38%}.auth-captcha-side{flex-shrink:0;align-items:stretch;gap:6px;margin-left:auto;display:flex}.auth-captcha-q{min-width:68px;height:42px;color:var(--auth-btn-start);border:1px solid var(--auth-border);-webkit-user-select:none;user-select:none;background:#f3f0ff;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:0 8px;font-size:.8125rem;font-weight:600;transition:background-color .3s,border-color .3s;display:flex}.auth-captcha-q--flash{border-color:var(--auth-btn-start);background:#e0d4ff}.auth-btn-ghost{height:42px;color:var(--auth-link);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:6px;flex-shrink:0;padding:0 10px;font-size:.8125rem}.auth-btn-ghost:hover{text-decoration:underline}.auth-btn-ghost:disabled{opacity:.45;cursor:not-allowed}.auth-btn-ghost--compact{white-space:nowrap;padding:0 8px;font-size:.75rem}.auth-terms{color:var(--auth-muted);-webkit-user-select:none;user-select:none;align-items:flex-start;gap:8px;margin:4px 0 16px;font-size:.75rem;line-height:1.6;display:flex}.auth-terms input[type=checkbox]{appearance:none;border:1px solid var(--auth-border);cursor:pointer;background:#fff;border-radius:4px;flex-shrink:0;width:16px;height:16px;margin:2px 0 0;transition:background-color .2s,border-color .2s;position:relative}.auth-terms input[type=checkbox]:checked{background:#16a34a;border-color:#16a34a}.auth-terms input[type=checkbox]:checked:after{content:"";border:2px solid #fff;border-width:0 2px 2px 0;width:4px;height:8px;position:absolute;top:1px;left:4px;transform:rotate(45deg)}.auth-terms-text a{color:var(--auth-link);margin:0 2px;text-decoration:none}.auth-terms-text a:hover{text-decoration:underline}.legal-doc-page{color:#1f2937;max-width:720px;margin:0 auto;padding:48px 24px 64px;line-height:1.8}.legal-doc-page h1{margin:0 0 24px;font-size:1.5rem}.legal-doc-page p{color:#4b5563;margin:0 0 16px;font-size:.9rem}.legal-doc-back{color:#7367f0;margin-top:24px;font-size:.875rem;text-decoration:none;display:inline-block}.legal-doc-back:hover{text-decoration:underline}.auth-btn-primary{background:linear-gradient(90deg, var(--auth-btn-start) 0%, var(--auth-btn-end) 100%);color:#fff;letter-spacing:.12em;cursor:pointer;border:none;border-radius:6px;width:100%;height:42px;padding:0 16px;font-size:.9375rem;font-weight:700;transition:filter .2s,box-shadow .2s}.auth-btn-primary:hover:not(:disabled){filter:brightness(1.05);box-shadow:0 4px 14px #7367f066}.auth-btn-primary:disabled{opacity:.55;cursor:wait}.auth-error{color:#f56c6c;background:#fef0f0;border-radius:6px;margin-bottom:14px;padding:8px 10px;font-size:.8125rem}.auth-footer-links{flex-direction:column;align-items:center;gap:10px;display:flex}.auth-footer-links--row{flex-direction:row;justify-content:center;gap:24px}.auth-link{color:var(--auth-link);cursor:pointer;background:0 0;border:none;padding:0;font-size:.8125rem;font-weight:400}.auth-link:hover{text-decoration:underline}.auth-link-footer{font-size:.8125rem}.auth-link-sub{color:var(--auth-placeholder);font-size:.75rem}.auth-link-sub button{color:var(--auth-link);cursor:pointer;font-size:inherit;background:0 0;border:none;padding:0}.auth-link-sub button:hover{text-decoration:underline}.auth-mock-tip{color:var(--auth-muted);background:#f5f3ff;border-radius:6px;margin:-6px 0 10px;padding:6px 8px;font-size:.75rem}.auth-bind-tip{color:var(--auth-muted);margin:0 0 18px;font-size:.8125rem;line-height:1.7}@media (width<=640px){.auth-hero h1{font-size:2rem}.auth-hero-cta{padding:14px 40px;font-size:.95rem}.auth-form-card--open,.auth-form{padding:24px 20px 20px}}