* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

header p {
    color: #7f8c8d;
    font-size: 1.1em;
}

.tool-intro {
    background: white;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.tool-intro h2 {
    color: #2c3e50;
    border-bottom: 3px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.tool-intro h3 {
    color: #34495e;
    margin: 20px 0 15px 0;
}

.tool-intro p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.tool-intro ul {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin: 15px 0;
}

.tool-intro li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.tool-intro .warning {
    color: #e74c3c;
    background-color: #ffeaea;
    padding: 10px;
    border-radius: 5px;
    border-left: 4px solid #e74c3c;
}

.input-section {
    background: white;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.input-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    resize: vertical;
    transition: border-color 0.3s;
}

.input-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover {
    background-color: #219a52;
}

.btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

.results-section {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.results-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

tr:hover {
    background-color: #f8f9fa;
}

.status-查询中 {
    color: #f39c12;
    font-weight: 600;
}

.status-正常 {
    color: #27ae60;
    font-weight: 600;
}

.status-即将过期 {
    color: #e67e22;
    font-weight: 600;
}

.status-已过期, .status-失败 {
    color: #e74c3c;
    font-weight: 600;
}

.retry-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
}

.retry-btn:hover {
    background-color: #2980b9;
}

.retry-btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

.friend-links {
    background: white;
    padding: 25px;
    margin-top: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.friend-links h4 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.links-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.friend-link {
    color: #3498db;
    text-decoration: none;
    padding: 8px 16px;
    border: 1px solid #3498db;
    border-radius: 5px;
    transition: all 0.3s;
}

.friend-link:hover {
    background-color: #3498db;
    color: white;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

.progress-message .loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #1976d2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

/* 表格行高亮动画 */
@keyframes highlight {
    0% { background-color: #e8f5e8; }
    100% { background-color: transparent; }
}

.highlight-row {
    animation: highlight 2s ease;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .tool-intro ul {
        padding: 15px;
    }

    .container {
        padding: 10px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .links-container {
        flex-direction: column;
        align-items: center;
    }
    
    table {
        font-size: 14px;
    }
    
    th, td {
        padding: 8px 4px;
    }
}