:root{--bg-color:#fff;--text-primary:#111;--text-secondary:#666;--accent-color:#000;--border-color:#eee;--card-bg:#fafafa;--success-bg:#f0fdf4;--success-text:#166534;--error-bg:#fef2f2;--error-text:#991b1b;background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,Source Han Sans CN,system-ui,sans-serif}@media (prefers-color-scheme:dark){:root{--bg-color:#000;--text-primary:#fff;--text-secondary:#a1a1a1;--accent-color:#fff;--border-color:#222;--card-bg:#111;--success-bg:#064e3b;--success-text:#34d399;--error-bg:#450a0a;--error-text:#f87171}}*{box-sizing:border-box;margin:0;padding:0}body{flex-direction:column;min-height:100vh;display:flex}.app-wrapper{flex-direction:column;width:100%;max-width:1000px;min-height:100vh;margin:0 auto;padding:0 2rem;display:flex}.navbar{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:80px;display:flex}.nav-right{align-items:center;gap:16px;display:flex}.logout-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;font-size:.875rem;text-decoration:underline}.auth-wall{background-color:var(--bg-color);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{border:1px solid var(--border-color);background:var(--card-bg);text-align:center;border-radius:20px;width:100%;max-width:400px;padding:3rem}.auth-card .logo{margin-bottom:2rem;font-size:2rem}.auth-card h2{margin-bottom:.5rem;font-size:1.5rem}.auth-card p{color:var(--text-secondary);margin-bottom:2rem}.auth-card input{border:1px solid var(--border-color);background:var(--bg-color);width:100%;color:var(--text-primary);text-align:center;border-radius:8px;margin-bottom:1rem;padding:1rem;font-size:1rem}.auth-card input:focus{border-color:var(--text-primary);outline:none}.error-msg{color:var(--error-text);margin-bottom:1rem;font-size:.875rem}.logo{letter-spacing:-.05em;font-size:1.5rem;font-weight:800}.status-tag{border:1px solid var(--border-color);color:var(--text-secondary);border-radius:100px;padding:4px 12px;font-size:.75rem}.main-content{flex:1;padding:4rem 0}.hero-section{margin-bottom:4rem}.title{letter-spacing:-.02em;margin-bottom:1.5rem;font-size:3.5rem;font-weight:700;line-height:1.1}.description{color:var(--text-secondary);font-size:1.25rem;line-height:1.6}.test-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;max-width:500px;padding:2rem}.card-header{align-items:center;gap:12px;margin-bottom:.5rem;display:flex}.card-header h3{font-size:1.1rem;font-weight:600}.pulse{background-color:var(--text-secondary);border-radius:50%;width:8px;height:8px}.pulse.active{background-color:#10b981;box-shadow:0 0 0 4px #10b98133}.endpoint-info{color:var(--text-secondary);margin-bottom:2rem;font-size:.875rem}code{background:var(--border-color);border-radius:4px;padding:2px 6px;font-family:monospace}.primary-button{background:var(--accent-color);width:100%;color:var(--bg-color);cursor:pointer;border:none;border-radius:8px;padding:1rem;font-size:1rem;font-weight:600;transition:opacity .2s}.primary-button:hover{opacity:.9}.primary-button:disabled{opacity:.5;cursor:not-allowed}.feedback-box{border-radius:8px;gap:12px;margin-top:1.5rem;padding:1rem;font-size:.875rem;display:flex}.feedback-box.error{background:var(--error-bg);color:var(--error-text);border:1px solid #991b1b33}.feedback-box.success{background:var(--success-bg);color:var(--success-text);border:1px solid #16653433}.result-content pre{background:#0000000d;border-radius:4px;margin-top:8px;padding:8px;font-size:.75rem}.footer{border-top:1px solid var(--border-color);height:100px;color:var(--text-secondary);justify-content:center;align-items:center;font-size:.875rem;display:flex}@media (width<=768px){.title{font-size:2.5rem}}