:root{--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-primary-light:#3b82f6;--color-success:#10b981;--color-warning:#f59e0b;--color-danger:#ef4444;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-bg:#f8fafc;--color-bg-card:#fff;--color-border:#e2e8f0;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1);--radius-sm:6px;--radius-md:10px;--radius-lg:16px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.container{margin:0 auto;max-width:1200px;padding:0 24px}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.btn{align-items:center;border:none;border-radius:var(--radius-md);cursor:pointer;display:inline-flex;font-size:14px;font-weight:500;gap:8px;justify-content:center;padding:12px 24px;transition:all .2s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:disabled{background:var(--color-text-muted);cursor:not-allowed;transform:none}.btn-secondary{background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text)}.btn-secondary:hover{background:var(--color-border)}.btn-lg{font-size:16px;padding:16px 32px}.input,.textarea{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;padding:12px 16px;transition:border-color .2s,box-shadow .2s;width:100%}.input:focus,.textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a;outline:none}.textarea{font-family:inherit;min-height:120px;resize:vertical}.header{background:var(--color-bg-card);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}.header-inner{height:64px;justify-content:space-between}.header-inner,.header-logo{align-items:center;display:flex}.header-logo{color:var(--color-text);font-size:20px;font-weight:700;gap:12px;text-decoration:none}.header-logo-icon{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-sm);color:#fff;font-size:18px;height:32px;justify-content:center;width:32px}.header-logo-icon,.user-menu{align-items:center;display:flex}.user-menu{gap:16px}.user-balance{align-items:center;background:var(--color-bg);border-radius:var(--radius-md);display:flex;font-size:13px;gap:8px;padding:8px 14px}.user-balance-amount{color:var(--color-primary);font-weight:600}.user-avatar{border:2px solid var(--color-border);border-radius:50%;cursor:pointer;height:36px;transition:border-color .2s;width:36px}.user-avatar:hover{border-color:var(--color-primary)}.upload-area{border:2px dashed var(--color-border);border-radius:var(--radius-lg);cursor:pointer;padding:40px;text-align:center;transition:all .2s}.upload-area:hover{background:#2563eb05;border-color:var(--color-primary)}.upload-area.dragover{background:#2563eb0d;border-color:var(--color-primary)}.upload-area.has-file{background:#10b9810d;border-color:var(--color-success)}.score-display{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-lg);color:#fff;padding:32px;text-align:center}.score-number{font-size:64px;font-weight:700;line-height:1}.score-label{font-size:16px;margin-top:8px;opacity:.9}.result-grid{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}@media(max-width:768px){.result-grid{grid-template-columns:1fr}}.result-card{border-radius:var(--radius-md);padding:20px}.result-card.success{background:#10b9811a}.result-card.warning{background:#f59e0b1a}.result-card.info{background:#2563eb1a}.result-card-title{align-items:center;display:flex;font-size:14px;font-weight:600;gap:8px;margin-bottom:12px}.result-card-list{list-style:none}.result-card-list li{border-bottom:1px solid var(--color-border);color:var(--color-text-secondary);font-size:13px;padding:6px 0}.result-card-list li:last-child{border-bottom:none}.loading-spinner{animation:spin .8s linear infinite;border:2px solid;border-radius:50%;border-right:2px solid transparent;display:inline-block;height:20px;width:20px}@keyframes spin{to{transform:rotate(1turn)}}.login-prompt{align-items:center;display:flex;flex-direction:column;justify-content:center;min-height:60vh;text-align:center}.login-prompt-icon{font-size:64px;margin-bottom:24px}.login-prompt-title{font-size:24px;margin-bottom:12px}.login-prompt-desc{color:var(--color-text-secondary);margin-bottom:24px}.fade-enter-active,.fade-leave-active{transition:opacity .2s ease}.fade-enter-from,.fade-leave-to{opacity:0}