/* 审核理由样式 */
.review-comment {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 12px;
    margin-top: 5px;
    font-size: 14px;
    line-height: 1.5;
    color: #495057;
    white-space: pre-wrap;
}

.detail-item.full-width {
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: flex-start;
}

.detail-item.full-width label {
    margin-bottom: 8px;
    font-weight: 600;
}

/* 投标详情弹窗样式增强 */
.bid-detail-section {
    margin-bottom: 25px;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
}

.bid-detail-section h3 {
    background: #f8f9fa;
    margin: 0;
    padding: 15px 20px;
    color: #495057;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid #e9ecef;
}

.bid-detail-section .detail-grid {
    padding: 20px;
}

.proposal-content {
    padding: 20px;
}

.proposal-item {
    margin-bottom: 20px;
}

.proposal-item:last-child {
    margin-bottom: 0;
}

.proposal-item h4 {
    color: #495057;
    margin-bottom: 10px;
    font-size: 1rem;
    font-weight: 600;
}

.proposal-item p {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 12px;
    margin: 0;
    line-height: 1.6;
    color: #495057;
    white-space: pre-wrap;
}

/* 状态徽章样式 */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.status-submitted,
.status-badge.status-pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.status-badge.status-reviewing {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.status-badge.status-accepted,
.status-badge.status-approved {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-badge.status-rejected,
.status-badge.status-declined {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
}

.tender-detail-modal {
    width: 800px;
}

.bid-modal {
    width: 600px;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    border-radius: 8px 8px 0 0;
}

.modal-header h3 {
    margin: 0;
    color: #333;
    font-size: 1.5rem;
}

.close-btn {
    background: #6c757d;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #fff;
    padding: 8px 16px;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.close-btn:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: #f8f9fa;
    border-radius: 0 0 8px 8px;
}

.detail-section {
    margin-bottom: 25px;
}

.detail-section h4 {
    color: #2c5aa0;
    margin-bottom: 15px;
    font-size: 1.2rem;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 8px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.detail-item {
    display: flex;
    align-items: center;
}

.detail-item label {
    font-weight: 600;
    color: #555;
    min-width: 100px;
    margin-right: 10px;
}

.detail-item span {
    color: #333;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-进行中 {
    background: #d4edda;
    color: #155724;
}

.status-招标中 {
    background: #cce5ff;
    color: #004085;
}

.status-即将开始 {
    background: #fff3cd;
    color: #856404;
}

.status-准备中 {
    background: #f8d7da;
    color: #721c24;
}

.status-计划中 {
    background: #e2e3e5;
    color: #383d41;
}

.documents-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.document-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #e9ecef;
}

.document-item i {
    color: #dc3545;
    font-size: 1.2rem;
}

.document-item span {
    flex: 1;
    color: #333;
}

.download-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 5px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.3s ease;
}

.download-btn:hover {
    background: #0056b3;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-text {
    font-size: 0.85rem;
    color: #666;
    margin-top: 5px;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: normal !important;
}

.checkbox-label input[type="checkbox"] {
    width: auto !important;
    margin: 0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(-50px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content {
        width: 95vw;
        margin: 20px;
    }
    
    .tender-detail-modal,
    .bid-modal {
        width: 100%;
    }
    
    .detail-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-header h3 {
        font-size: 1.2rem;
    }
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏样式 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 40px;
    width: auto;
}

.logo-img {
    height: 40px;
    width: auto;
}

.company-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c5aa0;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 30px;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 10px 0;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #2c5aa0;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: #2c5aa0;
}

/* 导航栏认证区域 */
.nav-auth {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-name {
    color: #333;
    font-weight: 500;
    cursor: pointer;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    display: none;
    z-index: 1001;
}

.user-info:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
}

.user-dropdown a:hover {
    background-color: #f5f5f5;
}

.login-btn,
.supplier-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.login-btn {
    background: #2c5aa0;
    color: white;
}

.login-btn:hover {
    background: #1e3f73;
    transform: translateY(-1px);
}

.supplier-btn {
    background: #28a745;
    color: white;
}

.supplier-btn:hover {
    background: #1e7e34;
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主横幅样式 */
.hero {
    margin-top: 70px;
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    min-height: 600px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: #fff;
    color: #2c5aa0;
}

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: #fff;
    color: #2c5aa0;
}

/* 模态框中的关闭按钮样式 */
.modal-footer .btn-secondary {
    background: #6c757d;
    color: #fff;
    border: 2px solid #6c757d;
}

.modal-footer .btn-secondary:hover {
    background: #5a6268;
    color: #fff;
    border: 2px solid #5a6268;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    max-width: 450px;
    object-fit: cover;
    margin: 0 auto;
}

/* 页面横幅样式 */
.page-banner {
    background: linear-gradient(135deg, #2c5aa0 0%, #1e3d72 100%);
    color: #fff;
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 70px;
}

.banner-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.banner-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 通用区块样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c5aa0;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #2c5aa0;
}

/* 区块标题头部样式 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.section-header .section-title {
    margin-bottom: 0;
    text-align: left;
}

.section-header .section-title::after {
    left: 0;
    transform: none;
}

.more-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

.more-button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

.more-button i {
    transition: transform 0.3s ease;
}

.more-button:hover i {
    transform: translateX(3px);
}

@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .section-header .section-title {
        text-align: center;
    }
    
    .section-header .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

/* 特色服务样式 */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    color: #2c5aa0;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 业务领域样式 */
.business-areas {
    padding: 80px 0;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.business-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.business-card:hover {
    transform: translateY(-5px);
}

.business-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.business-content {
    padding: 25px;
}

.business-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #2c5aa0;
}

.business-content p {
    color: #666;
    line-height: 1.6;
}

/* 新闻动态样式 */
.news {
    padding: 80px 0;
    background: #f8f9fa;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
    line-height: 1.4;
}

.news-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-date {
    color: #999;
    font-size: 0.9rem;
}

/* 加载和错误状态样式 */
.loading-placeholder,
.no-news,
.news-error {
    text-align: center;
    padding: 40px;
    color: #666;
    grid-column: 1 / -1;
}

.retry-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
    transition: background 0.3s ease;
}

.retry-btn:hover {
    background: #0056b3;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #fff;
}

.footer-section p {
    line-height: 1.6;
    color: #bdc3c7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #fff;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: #bdc3c7;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #3498db;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 20px;
    text-align: center;
    color: #bdc3c7;
}

/* 企业介绍页面样式 */
.company-overview {
    padding: 80px 0;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #2c5aa0;
    margin-bottom: 15px;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #2c5aa0;
}

.section-header p {
    color: #666;
    font-size: 1.1rem;
}

.overview-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
    margin-top: 50px;
}

.overview-text h3 {
    color: #2c5aa0;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.overview-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1rem;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c5aa0;
    margin-bottom: 10px;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

.overview-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 企业文化样式 */
.company-culture {
    padding: 80px 0;
    background: #f8f9fa;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.culture-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.culture-item:hover {
    transform: translateY(-10px);
}

.culture-icon {
    color: #2c5aa0;
    margin-bottom: 20px;
}

.culture-item h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
}

/* 发展历程样式 */
.company-history {
    padding: 80px 0;
    background: #fff;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #2c5aa0;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: #2c5aa0;
    color: #fff;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1.1rem;
    min-width: 80px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.timeline-content {
    background: #fff;
    padding: 25px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin: 0 30px;
    flex: 1;
    max-width: 300px;
}

.timeline-content h3 {
    color: #2c5aa0;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 资质荣誉样式 */
.company-honors {
    padding: 80px 0;
    background: #f8f9fa;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.honor-item {
    background: #fff;
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.honor-item:hover {
    transform: translateY(-5px);
}

.honor-icon {
    color: #2c5aa0;
    margin-bottom: 15px;
}

.honor-item h3 {
    color: #333;
    font-size: 1rem;
    line-height: 1.4;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .overview-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 70px;
    }
    
    .timeline-year {
        position: absolute;
        left: 0;
        min-width: 60px;
        font-size: 0.9rem;
        padding: 8px 15px;
    }
    
    .timeline-content {
        margin: 0;
        max-width: none;
    }
    
    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .company-stats {
        grid-template-columns: 1fr;
    }
    
    .honors-grid {
        grid-template-columns: 1fr;
    }
}

/* 产品页面样式 */
.product-nav {
    background: #fff;
    padding: 20px 0;
    border-bottom: 1px solid #e9ecef;
    margin-bottom: 40px;
}

.product-categories {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 12px 24px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    color: #495057;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
    background: #007bff;
    border-color: #007bff;
    color: #fff;
    transform: translateY(-2px);
}

.products-showcase {
    padding: 40px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.product-image {
    width: 100%;
    height: 200px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 14px;
    position: relative;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform 0.3s ease;
}

.product-image:hover img {
    transform: scale(1.05);
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 18px;
}

.product-info p {
    color: #666;
    line-height: 1.6;
    margin: 0 0 15px 0;
}

.product-specs {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}

.product-specs li {
    padding: 5px 0;
    color: #666;
    font-size: 14px;
    border-bottom: 1px solid #f0f0f0;
}

.product-specs li:last-child {
    border-bottom: none;
}

.btn-detail {
    display: inline-block;
    padding: 8px 20px;
    background: #007bff;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: background 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-detail:hover {
    background: #0056b3;
}

.btn-apply {
    display: inline-block;
    padding: 8px 20px;
    background: #28a745;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: background 0.3s ease;
    border: none;
    cursor: pointer;
    margin-left: 10px;
}

.btn-apply:hover {
    background: #218838;
}

.btn-expired {
    display: inline-block;
    padding: 8px 20px;
    background: #6c757d;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    border: none;
    cursor: not-allowed;
    margin-left: 10px;
    opacity: 0.6;
}

.btn-ended {
    display: inline-block;
    padding: 8px 20px;
    background: #dc3545;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    border: none;
    cursor: not-allowed;
    margin-left: 10px;
    opacity: 0.7;
}

/* 联系页面样式 */
.contact-info-section {
    padding: 80px 0;
    background: #fff;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.contact-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.contact-icon {
    color: #2c5aa0;
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
}

.contact-card h3 {
    color: #333;
    font-size: 1.4rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.contact-card p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.contact-card span {
    color: #2c5aa0;
    font-weight: 600;
}

.contact-form-section {
    padding: 60px 0;
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sidebar-card h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.quick-contact {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.quick-contact-item strong {
    display: block;
    color: #333;
    margin-bottom: 5px;
    font-weight: 600;
}

.quick-contact-item p {
    color: #666;
    margin: 0;
}

.social-media {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.social-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.social-item:hover {
    background: #f8f9fa;
    transform: translateX(5px);
}

.social-icon {
    width: 40px;
    height: 40px;
    background: #2c5aa0;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.download-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.download-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.download-item span {
    font-weight: 600;
    color: #2c5aa0;
}

.download-item small {
    color: #666;
    font-size: 0.9rem;
}

/* 复选框样式 */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
    color: #555;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.privacy-link {
    color: #2c5aa0;
    text-decoration: none;
}

.privacy-link:hover {
    text-decoration: underline;
}

.form-container {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    margin-top: 40px;
}

.contact-form {
    margin-top: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    background: #007bff;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-submit:hover {
    background: #0056b3;
}

/* 地图区域样式 */
.map-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.map-container {
    margin-top: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.map-placeholder {
    background: #fff;
    padding: 40px;
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-content {
    max-width: 600px;
}

.map-content h3 {
    color: #2c5aa0;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.map-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.map-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
    text-align: left;
}

.map-info p {
    margin-bottom: 10px;
    color: #555;
    font-size: 1rem;
}

.map-info strong {
    color: #2c5aa0;
    font-weight: 600;
}

.btn-map {
    background: #2c5aa0;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-map:hover {
    background: #1e3f73;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.3);
}

/* 招标页面样式 */
.tender-search {
    background: #f8f9fa;
    padding: 40px 0;
}

.search-container {
    max-width: 800px;
    margin: 0 auto;
}

.search-form {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.search-input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-input-group input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.btn-search {
    padding: 12px 24px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s ease;
}

.btn-search:hover {
    background: #0056b3;
}

.filter-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    min-width: 120px;
}

.btn-reset {
    padding: 10px 20px;
    background: #6c757d;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s ease;
}

.btn-reset:hover {
    background: #545b62;
}

.tender-notices {
    padding: 60px 0;
    background: #fff;
}

.tender-list {
    margin-top: 40px;
}

.tender-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid #007bff;
    transition: all 0.3s ease;
}

.tender-item:hover {
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.tender-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.tender-title {
    flex: 1;
    margin: 0 20px 0 0;
}

.tender-title h3 {
    margin: 0 0 5px 0;
    color: #333;
    font-size: 18px;
}

.tender-title a {
    color: #007bff;
    text-decoration: none;
}

.tender-title a:hover {
    text-decoration: underline;
}

.tender-status {
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-upcoming {
    background: #fff3cd;
    color: #856404;
}

.status-ended {
    background: #f8d7da;
    color: #721c24;
}

.tender-meta {
    display: flex;
    gap: 20px;
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.tender-description {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.tender-process {
    padding: 60px 0;
    background: #f8f9fa;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.process-step {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step-content h3 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 18px;
}

.step-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: #fff;
    color: #333;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination button:hover,
.pagination button.active {
    background: #007bff;
    border-color: #007bff;
    color: #fff;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 内容区域样式 */
.content-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.content-section:nth-child(even) {
    background: #f8f9fa;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.content-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.content-card:hover {
    transform: translateY(-5px);
}

.content-card h3 {
    color: #2c5aa0;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.content-card p {
    color: #666;
    line-height: 1.6;
}

.content-card .icon {
    font-size: 3rem;
    color: #2c5aa0;
    margin-bottom: 20px;
    display: block;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2c5aa0;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    margin-top: 30px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.data-table th,
.data-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background: #2c5aa0;
    color: #fff;
    font-weight: 600;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-closed {
    background: #f8d7da;
    color: #721c24;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 20px 0;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .features-grid,
    .business-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    /* 产品页面响应式 */
    .product-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    /* 联系页面响应式 */
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-container {
        padding: 20px;
    }
    
    .map-placeholder {
        padding: 20px;
        min-height: 300px;
    }
    
    .map-content h3 {
        font-size: 1.5rem;
    }
    
    /* 招标页面响应式 */
    .search-input-group {
        flex-direction: column;
    }
    
    .filter-group {
        flex-direction: column;
    }
    
    .filter-group select {
        width: 100%;
    }
    
    .tender-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .tender-meta {
        flex-direction: column;
        gap: 5px;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
}

/* 技术优势样式 */
.tech-advantages {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.tech-advantages .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.tech-advantages .section-header h2 {
    color: #2c5aa0;
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.tech-advantages .section-header p {
    color: #666;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.advantage-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(44, 90, 160, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(44, 90, 160, 0.15);
}

.advantage-item:hover::before {
    left: 100%;
}

.advantage-item:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0,0,0,0.2);
    background: rgba(255, 255, 255, 1);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.advantage-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transition: all 0.4s ease;
    transform: translate(-50%, -50%);
}

.advantage-card:hover .advantage-icon::before {
    width: 100px;
    height: 100px;
}

.advantage-card:hover .advantage-icon {
    transform: rotate(360deg) scale(1.1);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.advantage-icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 2.5;
    position: relative;
    z-index: 2;
}

.advantage-card h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.advantage-card:hover h3 {
    color: #667eea;
}

.advantage-card p {
    color: #666;
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
    transition: color 0.3s ease;
}

.advantage-card:hover p {
    color: #555;
}

/* 服务卡片特殊效果 */
.advantage-card:nth-child(1) .advantage-icon {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
}

.advantage-card:nth-child(2) .advantage-icon {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
}

.advantage-card:nth-child(3) .advantage-icon {
    background: linear-gradient(135deg, #45b7d1 0%, #96c93d 100%);
}

.advantage-card:nth-child(4) .advantage-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.advantage-card:nth-child(1):hover .advantage-icon {
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.4);
}

.advantage-card:nth-child(2):hover .advantage-icon {
    box-shadow: 0 10px 25px rgba(78, 205, 196, 0.4);
}

.advantage-card:nth-child(3):hover .advantage-icon {
    box-shadow: 0 10px 25px rgba(69, 183, 209, 0.4);
}

.advantage-card:nth-child(4):hover .advantage-icon {
    box-shadow: 0 10px 25px rgba(240, 147, 251, 0.4);
}

/* 供应商服务样式 */
.supplier-services {
    padding: 80px 0;
    background: #f8f9fa;
}

.supplier-services .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.supplier-services .section-header h2 {
    color: #2c5aa0;
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.supplier-services .section-header p {
    color: #666;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(44, 90, 160, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(44, 90, 160, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #2c5aa0 0%, #1e3d72 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.4s ease;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 2.5;
}

.service-card h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.service-card:hover h3 {
    color: #2c5aa0;
}

.service-card p {
    color: #666;
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
    transition: color 0.3s ease;
}

.service-card:hover p {
    color: #555;
}

/* 技术优势响应式设计 */
@media (max-width: 768px) {
    .tech-advantages {
        padding: 60px 0;
    }
    
    .tech-advantages .section-header h2 {
        font-size: 2.2rem;
    }
    
    .tech-advantages .section-header p {
        font-size: 1.1rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 40px;
    }
    
    .advantage-item {
        padding: 30px 25px;
    }
    
    .advantage-icon {
        width: 70px;
        height: 70px;
    }
    
    .advantage-icon svg {
        width: 35px;
        height: 35px;
    }
}

/* 供应商服务响应式设计 */
@media (max-width: 768px) {
    .supplier-services {
        padding: 60px 0;
    }
    
    .supplier-services .section-header h2 {
        font-size: 2.2rem;
    }
    
    .supplier-services .section-header p {
        font-size: 1.1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 40px;
    }
    
    .service-card {
        padding: 30px 25px;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
    }
    
    .service-icon svg {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .tech-advantages .section-header h2 {
        font-size: 1.8rem;
    }
    
    .advantage-item {
        padding: 25px 20px;
    }
    
    .advantage-card h3 {
        font-size: 1.3rem;
    }
    
    .advantage-card p {
        font-size: 0.95rem;
    }
    
    .supplier-services .section-header h2 {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 25px 20px;
    }
    
    .service-card h3 {
        font-size: 1.3rem;
    }
    
    .service-card p {
        font-size: 0.95rem;
    }
}

/* 文件列表样式 */
.file-list {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px;
    background-color: #f9f9f9;
    max-height: 150px;
    overflow-y: auto;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    border-bottom: 1px solid #eee;
}

.file-item:last-child {
    border-bottom: none;
}

.file-info {
    display: flex;
    align-items: center;
    flex: 1;
}

.file-icon {
    margin-right: 8px;
    font-size: 16px;
}

.file-name {
    font-weight: 500;
    color: #333;
    margin-right: 10px;
}

.file-size {
    color: #666;
    font-size: 12px;
}

.file-remove {
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 3px;
    padding: 2px 6px;
    font-size: 12px;
    cursor: pointer;
}

.file-remove:hover {
    background: #c82333;
}

.file-list-empty {
    text-align: center;
    color: #999;
    font-style: italic;
    padding: 20px;
}

/* 用户头像统一样式 */
.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* 媒体内容样式 */
.news-media-section {
    margin: 30px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.media-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.media-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.media-caption {
    padding: 10px 15px;
    font-size: 0.9rem;
    color: #666;
    background: #f8f9fa;
    margin: 0;
    text-align: center;
}

.audio-player {
    padding: 20px;
    text-align: center;
    background: #f8f9fa;
}

.file-download {
    padding: 30px 20px;
    text-align: center;
    background: #f8f9fa;
}

.download-btn {
    display: inline-block;
    padding: 8px 16px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 10px;
    transition: background 0.3s ease;
}

.download-btn:hover {
    background: #2980b9;
    color: white;
    text-decoration: none;
}

/* 媒体模态框样式 */
.media-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    cursor: pointer;
}

.media-modal img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
}