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

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2em;
    font-weight: 600;
}

main {
    padding: 30px;
}

section {
    margin-bottom: 40px;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-left: 4px solid #667eea;
    padding-left: 15px;
}

/* 区域头部 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    margin-bottom: 0;
}

.btn-export {
    padding: 10px 20px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-export:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.btn-clear {
    padding: 10px 20px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-clear:hover {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

/* 提示框 */
.tips-box {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.8;
}

.tips-box strong {
    color: #856404;
    display: block;
    margin-bottom: 8px;
}

.tips-box ol {
    margin-left: 20px;
    color: #856404;
}

.tips-box li {
    margin-bottom: 5px;
}

/* 搜索区域 */
.search-box {
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-box button {
    padding: 12px 30px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.search-box button:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* 表单样式 */
.form-container {
    display: grid;
    gap: 20px;
}

.form-group {
    display: grid;
    grid-template-columns: 150px 1fr;
    align-items: center;
    gap: 15px;
}

.form-group label {
    font-weight: 500;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group select {
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.style-select {
    cursor: pointer;
    background: white;
}

.form-group input[type="file"] {
    display: none;
}

.form-group input[type="file"] + .file-name {
    display: inline-block;
    padding: 12px 20px;
    background: #f0f0f0;
    border: 2px dashed #ccc;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.form-group input[type="file"] + .file-name:hover {
    border-color: #667eea;
    background: #f5f7ff;
}

.file-name {
    color: #888;
    font-style: italic;
}

.btn-primary {
    padding: 15px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
    justify-self: center;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px);
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

th, td {
    padding: 15px;
    text-align: left;
}

th {
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s;
}

tbody tr:hover {
    background: #f8f9ff;
}

.btn-action {
    padding: 8px 16px;
    margin: 0 5px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-view {
    background: #4CAF50;
    color: white;
}

.btn-view:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.btn-download {
    background: #2196F3;
    color: white;
}

.btn-download:hover {
    background: #0b7dda;
    transform: translateY(-2px);
}

.btn-delete {
    background: #f44336;
    color: white;
}

.btn-delete:hover {
    background: #da190b;
    transform: translateY(-2px);
}

/* 加载动画 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        border-radius: 10px;
    }

    header h1 {
        font-size: 1.5em;
    }

    main {
        padding: 15px;
    }

    section {
        padding: 15px;
    }

    .form-group {
        grid-template-columns: 1fr;
    }

    .search-box {
        flex-direction: column;
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 10px 5px;
    }

    .btn-action {
        padding: 6px 10px;
        font-size: 12px;
        margin: 2px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.2em;
    }

    section h2 {
        font-size: 1.2em;
    }

    .btn-primary {
        width: 100%;
    }
}