/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

h1, h2 {
    color: #333;
    margin-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 10px;
}

.intro {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid #667eea;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102,126,234,0.1);
}

.hint {
    display: block;
    margin-top: 5px;
    color: #888;
    font-size: 14px;
}

button {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #5a67d8;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}
.button:hover {
    background: #5a67d8;
}
.button.github {
    background: #24292e;
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
}
.button.github:hover {
    background: #1b1f23;
}
.button.github img {
    vertical-align: middle;
    margin-right: 8px;
}

.info {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 5px;
}

.info code {
    display: block;
    background: #2d3748;
    color: #a0aec0;
    padding: 10px;
    border-radius: 3px;
    margin: 10px 0;
    font-family: monospace;
}

.success {
    background: #c6f6d5;
    color: #22543d;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    border: 1px solid #9ae6b4;
}

.error {
    background: #fed7d7;
    color: #742a2a;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    border: 1px solid #fc8181;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

table th {
    background: #f7fafc;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #4a5568;
    border-bottom: 2px solid #e2e8f0;
}

table td {
    padding: 12px;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
}

table tr:hover {
    background: #f7fafc;
}

table a {
    color: #667eea;
    text-decoration: none;
    margin-right: 10px;
}

table a:hover {
    text-decoration: underline;
}

.record-item {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}
.record-item select {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 100px;
}
.record-item input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.record-item button {
    background: #f56565;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
}
.record-item button:hover {
    background: #c53030;
}

.admin-tabs {
    margin: 20px 0;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
}
.admin-tabs .tab {
    display: inline-block;
    padding: 8px 16px;
    margin-right: 10px;
    background: #f0f0f0;
    border-radius: 4px 4px 0 0;
    text-decoration: none;
    color: #333;
}
.admin-tabs .tab.active {
    background: #667eea;
    color: white;
}