:root {
    --primary: #2A6DF4;
    --primary-dark: #1A5BD9;
    --text-primary: #1E2A3A;
    --text-secondary: #546E7A;
    --bg-gradient: linear-gradient(145deg, #F5F9FF, #FFFFFF);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}
.logo img {
    max-width: 200px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px -10px rgba(42, 109, 244, 0.3);
}

.glass-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 30px;
    padding: 30px;
    box-shadow: 0 10px 30px -10px rgba(42, 109, 244, 0.2);
    margin-bottom: 20px;
}

h2, h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}
input, textarea, select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 40px;
    background: white;
    font-size: 16px;
    transition: all 0.3s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 109, 244, 0.2);
}
.captcha-group {
    display: flex;
    gap: 10px;
}
.captcha-group input {
    flex: 1;
}
.captcha-box {
    width: 120px;
    background: #f0f4fa;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 4px;
    color: var(--primary);
    border: 1px dashed var(--primary);
    user-select: none;
}

.btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 40px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 10px rgba(42,109,244,0.3);
}
.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(42,109,244,0.4);
}
.btn-block {
    width: 100%;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}
.footer-links a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}
.footer-links a:hover {
    text-decoration: underline;
}

.result-box {
    background: rgba(255,255,255,0.5);
    border-radius: 20px;
    padding: 20px;
    margin-top: 20px;
}
.report-number {
    background: var(--primary);
    color: white;
    padding: 15px;
    border-radius: 40px;
    text-align: center;
    font-size: 24px;
    letter-spacing: 2px;
    margin: 20px 0;
    font-weight: bold;
}
.copy-btn {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    margin-right: 10px;
}
.copy-btn:hover {
    background: var(--primary);
    color: white;
}

/* 管理员表格 */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255,255,255,0.5);
    border-radius: 20px;
    overflow: hidden;
}
.admin-table th, .admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.admin-table th {
    background: rgba(42,109,244,0.1);
    color: var(--primary);
    font-weight: 600;
}
.admin-table tr:hover {
    background: rgba(255,255,255,0.8);
}
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
}
.status-pending { background: #ffd966; color: #856404; }
.status-reviewing { background: #b8daff; color: #004085; }
.status-resolved { background: #c3e6cb; color: #155724; }
.status-rejected { background: #f5c6cb; color: #721c24; }

/* 移动端适配 */
@media (max-width: 480px) {
    .glass-card { padding: 20px; }
    .captcha-group { flex-direction: column; }
    .captcha-box { width: 100%; height: 60px; }
}