*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #e84393;--primary-dark: #c2317a;--primary-light: #fce4f0;--bg: #f7f8fc;--card-bg: #ffffff;--text: #1a1a2e;--text-muted: #6b7280;--border: #e5e7eb;--radius: 12px;--shadow: 0 4px 24px rgba(0,0,0,.08);--green: #10b981;--red: #ef4444}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(135deg,#fce4f0,#e8f4fd)}.login-card{background:var(--card-bg);border-radius:20px;box-shadow:var(--shadow);padding:48px 40px;width:100%;max-width:400px;text-align:center}.logo{font-size:56px;margin-bottom:12px}.login-card h1{font-size:28px;font-weight:700;color:var(--primary);margin-bottom:4px}.subtitle{color:var(--text-muted);font-size:14px;margin-bottom:32px}.field{text-align:left;margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}.field input{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:var(--radius);font-size:16px;outline:none;transition:border-color .2s}.field input:focus{border-color:var(--primary)}.header{background:var(--card-bg);border-bottom:1px solid var(--border);padding:0 24px;position:sticky;top:0;z-index:100}.header-inner{max-width:760px;margin:0 auto;height:60px;display:flex;align-items:center;justify-content:space-between}.header-logo{font-weight:700;font-size:16px;color:var(--primary);display:flex;align-items:center;gap:8px}.app-wrap{min-height:100vh;background:var(--bg)}.main{max-width:760px;margin:0 auto;padding:40px 24px}.card{background:var(--card-bg);border-radius:20px;box-shadow:var(--shadow);padding:40px}.card h2{font-size:22px;font-weight:700;margin-bottom:8px}.hint{color:var(--text-muted);font-size:14px;margin-bottom:28px;line-height:1.5}.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}@media (max-width: 520px){.upload-grid{grid-template-columns:1fr}}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px 16px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;position:relative;min-height:140px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--primary);background:var(--primary-light)}.upload-zone.has-file{border-color:var(--green);border-style:solid;background:#f0fdf8}.upload-icon{font-size:32px}.upload-label{font-size:14px;color:var(--text-muted);line-height:1.5}.upload-zone.has-file .upload-label{color:var(--text)}.remove-btn{position:absolute;top:8px;right:8px;background:var(--red);color:#fff;border:none;width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:11px;display:flex;align-items:center;justify-content:center}.actions{display:flex;justify-content:center;margin:8px 0 24px}.info-box{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:16px;font-size:13px;color:#1e40af;line-height:1.6}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:10px;border:2px solid transparent;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:not(:disabled):hover{background:var(--primary-dark);border-color:var(--primary-dark)}.btn-outline{background:transparent;color:var(--text-muted);border-color:var(--border)}.btn-outline:hover{border-color:var(--text-muted);color:var(--text)}.btn-lg{padding:14px 32px;font-size:16px;border-radius:12px}.btn-sm{padding:6px 14px;font-size:13px}.login-card .btn{width:100%;justify-content:center;margin-top:8px;padding:14px;font-size:16px}.alert{padding:12px 16px;border-radius:10px;font-size:14px;margin-bottom:16px;line-height:1.5}.alert.error{background:#fef2f2;color:var(--red);border:1px solid #fecaca}.alert.success{background:#f0fdf4;color:var(--green);border:1px solid #bbf7d0}.spinner{width:16px;height:16px;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}