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

body {
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    color: #333;
    text-decoration: none;
}

a:hover {
    color: #c8161d;
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
}

.logo h1 {
    font-size: 24px;
    color: #c8161d;
    font-weight: bold;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-size: 16px;
    padding: 10px 15px;
    display: block;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    color: #c8161d;
    border-bottom-color: #c8161d;
}

/* 主要内容 */
main {
    min-height: 600px;
}

/* 首页轮播图 */
.banner {
    background: linear-gradient(135deg, #c8161d 0%, #8b0d12 100%);
    color: #fff;
    text-align: center;
    padding: 80px 0;
}

.banner h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.banner p {
    font-size: 20px;
    opacity: 0.9;
}

/* 区块样式 */
.section {
    padding: 60px 0;
}

.section.bg-gray {
    background-color: #f9f9f9;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}

.section-title:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #c8161d;
}

/* 公司简介 */
.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-content p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    text-indent: 2em;
}

/* 业务范围 */
.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.business-item {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.business-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.12);
}

.business-item h3 {
    font-size: 20px;
    color: #c8161d;
    margin-bottom: 15px;
}

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

/* 最新拍卖 */
.auction-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.auction-item {
    display: flex;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.auction-item:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.12);
}

.auction-image {
    width: 300px;
    flex-shrink: 0;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    min-height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
}

.auction-info {
    padding: 25px;
    flex: 1;
}

.auction-info h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.auction-desc {
    color: #666;
    margin-bottom: 15px;
}

.auction-price {
    color: #c8161d;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}

.auction-time {
    color: #999;
    font-size: 14px;
}

.text-center {
    text-align: center;
    margin-top: 30px;
}

.btn-more {
    display: inline-block;
    padding: 12px 30px;
    background-color: #c8161d;
    color: #fff;
    border-radius: 5px;
    transition: all 0.3s;
}

.btn-more:hover {
    background-color: #a81118;
    color: #fff;
}

/* 公司优势 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #c8161d 0%, #8b0d12 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 36px;
    font-weight: bold;
}

.advantage-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

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

/* 页面头部 */
.page-header {
    text-align: center;
    padding: 50px 0;
    background: linear-gradient(135deg, #c8161d 0%, #8b0d12 100%);
    color: #fff;
    margin-bottom: 40px;
    border-radius: 8px;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

/* 内容区块 */
.section-content {
    background: #fff;
    padding: 40px;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.section-content h2 {
    font-size: 28px;
    color: #c8161d;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #eee;
}

.section-content h3 {
    font-size: 20px;
    color: #333;
    margin: 20px 0 10px;
}

.content-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    text-indent: 2em;
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.culture-item {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid #c8161d;
}

.culture-item h3 {
    color: #c8161d;
    margin-bottom: 15px;
}

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

/* 发展历程 */
.history-timeline {
    margin-top: 30px;
}

.history-item {
    display: flex;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px dashed #ddd;
}

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

.history-year {
    width: 150px;
    flex-shrink: 0;
    font-size: 24px;
    font-weight: bold;
    color: #c8161d;
}

.history-content {
    flex: 1;
}

.history-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

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

/* 资质荣誉 */
.honor-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.honor-item {
    text-align: center;
    padding: 30px;
    background: #f9f9f9;
    border-radius: 8px;
}

.honor-icon {
    font-size: 48px;
    color: #c8161d;
    margin-bottom: 15px;
}

.honor-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

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

/* 组织架构 */
.structure-content ul {
    list-style: disc;
    padding-left: 30px;
    margin-top: 20px;
}

.structure-content li {
    margin-bottom: 10px;
    line-height: 1.8;
}

/* 拍卖公告 */
.notice-box {
    background: #fff8f0;
    border: 1px solid #ffd7a8;
    border-radius: 5px;
    padding: 20px;
    color: #d46b08;
    line-height: 1.8;
}

/* 拍卖卡片 */
.auction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.auction-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}

.auction-card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.12);
    transform: translateY(-3px);
}

.card-image .placeholder-image {
    min-height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-content {
    padding: 20px;
}

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

.auction-desc {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    min-height: 60px;
}

.auction-details {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.auction-details p {
    margin-bottom: 8px;
    font-size: 14px;
}

.auction-details strong {
    color: #666;
}

.btn-auction {
    display: block;
    text-align: center;
    padding: 10px;
    background: #c8161d;
    color: #fff;
    border-radius: 5px;
    transition: all 0.3s;
}

.btn-auction:hover {
    background: #a81118;
    color: #fff;
}

/* 拍卖表格 */
.auction-table {
    overflow-x: auto;
}

.auction-table table {
    width: 100%;
    border-collapse: collapse;
}

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

.auction-table th {
    background: #f5f5f5;
    font-weight: bold;
    color: #333;
}

.auction-table tr:hover {
    background: #f9f9f9;
}

.status-upcoming {
    display: inline-block;
    padding: 5px 15px;
    background: #e6f7ff;
    color: #1890ff;
    border-radius: 3px;
}

.rate-high {
    color: #f5222d;
}

.rate-medium {
    color: #fa8c16;
}

.rate-low {
    color: #52c41a;
}

/* 拍卖流程 */
.process-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.step-item {
    flex: 1;
    text-align: center;
    padding: 0 15px;
    position: relative;
}

.step-item:not(:last-child):after {
    content: "→";
    position: absolute;
    right: -10px;
    top: 20px;
    font-size: 24px;
    color: #ddd;
}

.step-number {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    background: #c8161d;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
}

.step-item h3 {
    font-size: 16px;
    margin-bottom: 10px;
}

.step-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 竞买须知 */
.notice-list h3 {
    color: #c8161d;
    margin-top: 25px;
    margin-bottom: 15px;
}

.notice-list ul {
    list-style: disc;
    padding-left: 30px;
}

.notice-list li {
    margin-bottom: 10px;
    line-height: 1.8;
    color: #666;
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: flex;
    gap: 20px;
    padding-bottom: 30px;
    border-bottom: 1px dashed #eee;
}

.news-date {
    width: 100px;
    flex-shrink: 0;
    background: #f5f5f5;
    border-radius: 5px;
    text-align: center;
    padding: 15px;
}

.date-day {
    font-size: 32px;
    font-weight: bold;
    color: #c8161d;
}

.date-month {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.news-content h3 a {
    color: #333;
}

.news-content h3 a:hover {
    color: #c8161d;
}

.news-summary {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-meta {
    color: #999;
    font-size: 14px;
}

.news-meta span {
    margin-right: 20px;
}

/* 行业新闻 */
.industry-news {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.industry-item {
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
    border-left: 4px solid #c8161d;
}

.industry-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.industry-item h3 a {
    color: #333;
}

.industry-item h3 a:hover {
    color: #c8161d;
}

.industry-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.industry-item > p {
    color: #666;
    line-height: 1.8;
}

/* 拍卖知识 */
.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.knowledge-item {
    background: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
}

.knowledge-item h3 {
    color: #c8161d;
    margin-bottom: 15px;
}

.knowledge-item p {
    color: #666;
    line-height: 1.8;
}

/* 联系方式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.contact-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.contact-card p {
    color: #666;
    margin-bottom: 8px;
}

/* 交通指南 */
.traffic-info h3 {
    color: #c8161d;
    margin: 25px 0 15px;
}

.traffic-info ul {
    list-style: disc;
    padding-left: 30px;
}

.traffic-info li {
    margin-bottom: 10px;
    line-height: 1.8;
    color: #666;
}

/* 留言表单 */
.message-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

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

.required {
    color: #c8161d;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #c8161d;
}

.form-group textarea {
    resize: vertical;
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 10px;
}

.form-submit {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.btn-submit,
.btn-reset {
    padding: 12px 40px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit {
    background: #c8161d;
    color: #fff;
}

.btn-submit:hover {
    background: #a81118;
}

.btn-reset {
    background: #999;
    color: #fff;
}

.btn-reset:hover {
    background: #777;
}

.form-note {
    margin-top: 30px;
    padding: 20px;
    background: #fff8f0;
    border: 1px solid #ffd7a8;
    border-radius: 5px;
}

.form-note p {
    color: #d46b08;
    margin-bottom: 10px;
}

.form-note ul {
    list-style: disc;
    padding-left: 30px;
}

.form-note li {
    color: #d46b08;
    margin-bottom: 5px;
}

/* 业务联系 */
.business-contact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.contact-item {
    background: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #c8161d;
}

.contact-item h3 {
    color: #c8161d;
    margin-bottom: 15px;
}

.contact-item p {
    color: #666;
    margin-bottom: 8px;
}

/* 社交媒体 */
.social-media {
    text-align: center;
}

.social-media > p {
    margin-bottom: 30px;
    font-size: 16px;
}

.social-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.social-item {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
}

.social-item h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.social-item p {
    color: #666;
    margin-bottom: 8px;
}

/* 常见问题 */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.faq-item {
    background: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
}

.faq-item h3 {
    font-size: 18px;
    color: #c8161d;
    margin-bottom: 15px;
}

.faq-item p {
    color: #666;
    line-height: 1.8;
}

/* 底部 */
footer {
    background: #333;
    color: #fff;
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-item h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-item p {
    color: #999;
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-item a {
    color: #999;
}

.footer-item a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
}

.footer-bottom p {
    color: #999;
    margin-bottom: 8px;
}

.footer-bottom a {
    color: #999;
}

.footer-bottom a:hover {
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        width: 100%;
        padding: 0 20px;
    }

    .business-grid,
    .advantage-grid,
    .auction-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .honor-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px 10px;
    }

    .banner h2 {
        font-size: 32px;
    }

    .banner p {
        font-size: 16px;
    }

    .business-grid,
    .advantage-grid,
    .auction-grid,
    .honor-list,
    .contact-grid,
    .business-contact,
    .culture-grid,
    .knowledge-grid,
    .social-list {
        grid-template-columns: 1fr;
    }

    .auction-item {
        flex-direction: column;
    }

    .auction-image {
        width: 100%;
    }

    .process-steps {
        flex-direction: column;
    }

    .step-item:not(:last-child):after {
        display: none;
    }

    .news-item {
        flex-direction: column;
    }

    .news-date {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}