/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "微软雅黑", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

/* 主色调：深红色渐变 */
:root {
    --primary-color: #8B0000;
    --primary-light: #B22222;
    --primary-dark: #660000;
    --secondary-color: #DC143C;
    --accent-color: #CD5C5C;
    --gradient-1: linear-gradient(135deg, #8B0000 0%, #B22222 50%, #DC143C 100%);
    --gradient-2: linear-gradient(45deg, #660000 0%, #8B0000 50%, #B22222 100%);
    --gradient-3: linear-gradient(to right, #8B0000, #B22222, #DC143C, #CD5C5C);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部功能区 */
.top-bar {
    background: var(--gradient-1);
    border-bottom: none;
    height: 40px;
    line-height: 40px;
    box-shadow: 0 2px 15px rgba(139, 0, 0, 0.1);
    position: relative;
    z-index: 100;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-left span {
    margin-right: 20px;
    color: rgba(255,255,255,0.9);
    font-size: 13px;
}

.top-right {
    display: flex;
    align-items: center;
}

.top-right a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin-right: 20px;
    font-size: 13px;
    transition: all 0.3s ease;
    position: relative;
}

.top-right a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #fff;
    transition: width 0.3s ease;
}

.top-right a:hover {
    color: #fff;
}

.top-right a:hover::after {
    width: 100%;
}

.login-btn, .register-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: all 0.3s ease;
}

.register-btn {
    color: #ffd700;
    font-weight: bold;
}

/* 主导航 */
.main-nav {
    background: var(--gradient-2);
    padding: 25px 0;
    box-shadow: 0 4px 20px rgba(139, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.main-nav::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.nav-content {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 40px;
}

.logo-image {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

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

.logo-fallback {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.logo-text p {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 0.5px;
}

.search-area {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.search-tabs {
    display: flex;
    margin-bottom: 12px;
}

.tab {
    background: rgba(255,255,255,0.1);
    border: none;
    color: rgba(255,255,255,0.8);
    padding: 8px 20px;
    margin-right: 10px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}

.tab.active {
    background: white;
    color: var(--primary-color);
    font-weight: 500;
}

.tab:hover:not(.active) {
    background: rgba(255,255,255,0.2);
    color: white;
}

.search-box {
    display: flex;
    background: white;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.search-box input {
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    flex: 1;
    outline: none;
}

.search-box input::placeholder {
    color: #999;
}

.search-btn {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    border: none;
    padding: 0 25px;
    font-size: 15px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* 广告轮播图 */
.banner-carousel {
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

/* 轮播图样式优化 */
.carousel-container {
    position: relative;
    width: 100%;
    height: 300px;
    background: #f5f5f5;
}

@media (max-width: 768px) {
    .carousel-container {
        height: 200px;
    }
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    color: white;
}

.carousel-caption h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.carousel-caption p {
    font-size: 16px;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.carousel-prev, .carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-prev:hover, .carousel-next:hover {
    background: rgba(0,0,0,0.8);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

/* 主要内容区 */
.main-content {
    padding: 20px 0;
}

.content-wrapper {
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.sidebar-left {
    width: 280px;
}

.main-section {
    flex: 1;
    min-width: 0;
}

.sidebar-right {
    width: 300px;
}

/* 左侧栏 */
.user-panel {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.user-panel:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.user-info {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 50%;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    position: relative;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.3);
}

.avatar::before {
    content: "";
    width: 30px;
    height: 30px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'%3E%3C/path%3E%3Ccircle cx='12' cy='7' r='4'%3E%3C/circle%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.user-status p {
    margin-bottom: 8px;
    font-size: 14px;
}

.user-status a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.user-status a:hover {
    color: var(--secondary-color);
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    width: 100%;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 0, 0, 0.3);
}

/* 动态列表 */
.transaction-dynamics {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.transaction-dynamics:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.transaction-dynamics h3 {
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 600;
    position: relative;
}

.dynamics-list .item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-size: 13px;
    transition: all 0.3s ease;
    border-radius: 8px;
    margin-bottom: 5px;
    background: #fafafa;
}

.dynamics-list .item:hover {
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.05) 0%, rgba(220, 20, 60, 0.05) 100%);
    transform: translateX(3px);
}

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

.model {
    flex: 1;
    font-weight: 500;
    color: #333;
}

.volume {
    font-weight: bold;
    color: var(--secondary-color);
    margin-right: 5px;
}

.location {
    color: #666;
    margin-right: 5px;
}

.view-more {
    display: block;
    text-align: center;
    color: var(--primary-color);
    text-decoration: none;
    margin-top: 15px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px;
    border-radius: 8px;
}

.view-more:hover {
    background: rgba(139, 0, 0, 0.05);
}

/* 资讯快报 */
.news-ticker {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.news-ticker:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.news-ticker h3 {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
}

.news-tabs {
    display: flex;
    margin-bottom: 15px;
}

.news-tab {
    background: #f8f9fa;
    border: none;
    color: #666;
    padding: 6px 12px;
    margin-right: 5px;
    cursor: pointer;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
}

.news-tab:last-child {
    margin-right: 0;
}

.news-tab.active {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    background: #fafafa;
    border-radius: 8px;
    margin-bottom: 5px;
}

.news-item:hover {
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.05) 0%, rgba(220, 20, 60, 0.05) 100%);
    transform: translateX(3px);
}

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

.news-item a {
    color: #666;
    text-decoration: none;
    font-size: 13px;
    flex: 1;
    transition: color 0.3s ease;
}

.news-item:hover a {
    color: var(--primary-color);
}

/* 中间内容区 */
.trade-tabs {
    display: flex;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f8f9fa;
}

.trade-tab {
    background: none;
    border: none;
    color: #666;
    padding: 10px 20px;
    margin-right: 15px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 8px;
    position: relative;
}

.trade-tab.active {
    color: var(--primary-color);
    font-weight: 600;
}

.trade-tab.active::after {
    content: '';
    position: absolute;
    bottom: -22px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 3px;
}

.trade-tab:hover:not(.active) {
    color: var(--primary-color);
    background: rgba(139, 0, 0, 0.05);
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f8f9fa;
}

.filters {
    display: flex;
    gap: 15px;
}

.filter-select {
    padding: 10px 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    outline: none;
}

.filter-select:hover {
    border-color: var(--primary-color);
}

.filter-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.refresh-btn button {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
}

.refresh-btn button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 0, 0, 0.3);
}

.trade-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.trade-table th,
.trade-table td {
    padding: 15px 15px;
    text-align: left;
    border-bottom: 1px solid #f8f9fa;
    white-space: nowrap;
}

.trade-table th {
    background: #8B0000;
    color: white;
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.trade-table td {
    font-size: 13px;
    transition: all 0.3s ease;
}

.trade-table tbody tr {
    transition: all 0.3s ease;
}

.trade-table tbody tr:hover {
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.03) 0%, rgba(220, 20, 60, 0.03) 100%);
    transform: scale(1.01);
}

.trade-table tbody tr:hover td {
    color: #333;
}

.btn-contact {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    transform: translateY(-2px);
    background: var(--primary-color);
}

.material-badge {
    background: var(--gradient-3);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.stock-badge {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    align-items: center;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 5px;
    border-radius: 8px;
    color: #666;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
}

.page-link.active {
    background: var(--gradient-1);
    color: white;
    font-weight: 500;
}

.page-link:hover:not(.active) {
    background: rgba(139, 0, 0, 0.05);
    color: var(--primary-color);
}

.page-link.next {
    width: auto;
    padding: 0 15px;
}

.pagination span {
    color: #999;
    margin: 0 5px;
}

/* 右侧栏 */
.vip-promotion {
    background: var(--gradient-2);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    color: white;
    box-shadow: 0 12px 35px rgba(139, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.vip-promotion::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.vip-promotion::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -30%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.vip-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.vip-header h3 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
}

.vip-badge {
    background: var(--secondary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.vip-content {
    position: relative;
    z-index: 1;
}

.vip-content h4 {
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.vip-content ul {
    list-style: none;
    margin-bottom: 25px;
}

.vip-content li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.vip-content li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    margin-right: 10px;
    font-weight: bold;
    font-size: 12px;
}

.btn-vip {
    background: white;
    color: var(--primary-color);
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    width: 100%;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn-vip:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.platform-services {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    width: 100%;
}

.platform-services:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.platform-services h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.service-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border-radius: 8px;
    margin-bottom: 10px;
    background: #fafafa;
}

.service-item:hover {
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.05) 0%, rgba(220, 20, 60, 0.05) 100%);
    transform: translateX(5px);
}

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

.service-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 12px;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
}

.finance-icon::before {
    content: "";
    width: 24px;
    height: 24px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cline x1='12' y1='1' x2='12' y2='23'%3E%3C/line%3E%3Cpath d='M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.logistics-icon::before {
    content: "";
    width: 24px;
    height: 24px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M1 3h15v13H1zM16 8h4l3 3v5h-7V8z'%3E%3C/path%3E%3Ccircle cx='5.5' cy='18.5' r='2.5'%3E%3C/circle%3E%3Ccircle cx='18.5' cy='18.5' r='2.5'%3E%3C/circle%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.quality-icon::before {
    content: "";
    width: 24px;
    height: 24px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.security-icon::before {
    content: "";
    width: 24px;
    height: 24px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.service-info h4 {
    font-size: 14px;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

.service-info p {
    font-size: 12px;
    color: #666;
    line-height: 1.4;
}

.trade-stats {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.trade-stats:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.12);
}

.trade-stats h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.stats-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-label {
    color: #666;
    font-size: 13px;
}

.stat-value {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
}

/* 页脚 */
.site-footer {
    background: #1a1a1a;
    color: #ccc;
    padding: 50px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 30px;
}

.footer-section {
    width: 23%;
    min-width: 200px;
}

.footer-section h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-1);
}

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

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

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 13px;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.contact-info p {
    margin-bottom: 10px;
    font-size: 13px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: #999;
    font-size: 13px;
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.announcement-modal {
    animation: fadeIn 0.5s ease;
}

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

.announcement-modal-content {
    max-width: 450px;
    border: 3px solid var(--primary-color);
    box-shadow: 0 10px 30px rgba(139, 0, 0, 0.3);
}

.announcement-content {
    display: flex;
    align-items: center;
    text-align: center;
    padding: 15px 0;
}

.announcement-icon {
    font-size: 48px;
    margin-right: 20px;
    color: var(--primary-color);
}

.announcement-content p {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    color: #333;
}

.modal {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #f8f9fa;
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 15px 25px;
    border-top: 1px solid #f8f9fa;
}

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

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

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
    outline: none;
}

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

.btn-code {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.btn-code:hover {
    background: var(--primary-light);
}

.vip-modal-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.vip-feature {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
}

.vip-feature h4 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn-secondary {
    background: #f8f9fa;
    color: #666;
}

.btn-secondary:hover {
    background: #e9ecef;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-light);
}

/* 移动端菜单样式 */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    visibility: hidden;
    opacity: 0;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    visibility: visible;
    opacity: 1;
}

.mobile-menu {
    position: absolute;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100%;
    background: white;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-menu-overlay.active .mobile-menu {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--primary-color);
    color: white;
}

.mobile-menu-header h2 {
    margin: 0;
    font-size: 18px;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-content {
    padding: 20px;
}

.mobile-user-menu {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.mobile-user-menu .login-btn, .mobile-user-menu .register-btn {
    flex: 1;
    padding: 10px;
    text-align: center;
    border-radius: 8px;
    background: #f8f9fa;
}

.mobile-user-menu .register-btn {
    background: var(--primary-color);
    color: white;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.mobile-nav-links a {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
    text-decoration: none;
    font-size: 14px;
}

.mobile-search-section {
    margin-top: 20px;
}

.mobile-search-box {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 25px;
    overflow: hidden;
}

.mobile-search-box input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    outline: none;
    font-size: 14px;
}

.mobile-search-box button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px;
    font-size: 14px;
}

/* 移动端Logo和搜索区域 */
.mobile-logo-search {
    display: none;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 10px 0;
}

.mobile-logo {
    display: flex;
    align-items: center;
}

.mobile-logo img {
    height: 36px;
    width: auto;
    object-fit: contain;
    background: white;
    border-radius: 50%;
    padding: 5px;
}

.mobile-logo-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: white;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
}

.mobile-menu-btn, .mobile-search-icon {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-search-container {
    display: none;
    width: 100%;
    margin-bottom: 15px;
}

.mobile-search-container input {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 25px;
    font-size: 14px;
}

.mobile-search-container button {
    display: none;
}

/* 移动端交易卡片样式 */
.mobile-trade-list {
    display: none;
    width: 100%;
}

.mobile-trade-card {
    background: white;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    width: 100%;
}

.mobile-trade-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.mobile-trade-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    gap: 10px;
}

.mobile-trade-header h4 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    color: #333;
}

.mobile-trade-info {
    margin-bottom: 15px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.info-row .label {
    color: #666;
    font-size: 13px;
}

.info-row .value {
    color: #333;
    font-size: 13px;
    font-weight: 500;
}

.mobile-trade-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f0f0f0;
    padding-top: 12px;
}

.price-row {
    display: flex;
    align-items: center;
    gap: 5px;
}

.price-row span:first-child {
    color: #666;
    font-size: 13px;
}

.price-row .price {
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 15px;
}

/* 响应式设计优化 */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    .sidebar-left, .sidebar-right {
        width: 100%;
        margin-bottom: 20px;
    }
    
    .nav-content {
        flex-direction: column;
    }
    
    .logo {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .search-area {
        width: 100%;
    }
    
    .modal {
        width: 95%;
        margin: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0;
    }
    
    .sidebar-left > div, .sidebar-right > div {
        padding: 15px;
        margin-bottom: 15px;
    }
    
    /* 顶部栏优化 - 在移动端隐藏 */
    .top-bar {
        display: none;
    }
    
    /* 移动端菜单和Logo显示 */
    .mobile-logo-search {
        display: flex;
    }
    
    /* 桌面端搜索区域隐藏 */
    .logo, .search-area {
        display: none;
    }
    
    /* 桌面端表格隐藏，移动端卡片显示 */
    .desktop-table {
        display: none;
    }
    
    .mobile-trade-list {
        display: block;
    }
    
    /* 主导航优化 */
    .main-nav {
        padding: 10px 0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    /* 表格响应式优化 */
    .main-section > div {
        padding: 15px 10px;
        margin-left: 5px;
        margin-right: 5px;
    }
    
    /* 移动端交易卡片样式优化 */
    .mobile-trade-card {
        padding: 15px 20px;
        margin-left: 5px;
        margin-right: 5px;
    }

    .trade-list {
        overflow: visible;
        margin: 0;
        padding: 0;
    }

    .trade-content {
        width: 100%;
    }
    
    .trade-tabs {
        flex-wrap: wrap;
        gap: 5px;
        margin-bottom: 15px;
    }
    
    .trade-tab {
        padding: 8px 12px;
        font-size: 13px;
        margin-right: 5px;
    }
    
    /* 卡片响应式优化 */
    
    .user-info {
        margin-bottom: 15px;
    }
    
    .avatar {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    /* 页脚优化 */
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-section {
        width: 100%;
    }
    
    /* 轮播图优化 */
    .carousel-caption {
        padding: 15px;
    }
    
    .carousel-caption h3 {
        font-size: 18px;
    }
    
    .carousel-caption p {
        font-size: 14px;
    }
    
    .carousel-prev, .carousel-next {
        width: 40px;
        height: 40px;
        font-size: 15px;
    }
    
    /* VIP推广优化 */
    .vip-promotion {
        padding: 20px;
    }
    
    .vip-content h4 {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    /* 顶部栏进一步优化 */
    .top-left span {
        font-size: 11px;
        margin-right: 8px;
    }
    
    .top-right a {
        font-size: 11px;
        margin-right: 10px;
    }
    
    /* 主导航进一步优化 */
    .logo-image {
        width: 40px;
        height: 40px;
    }
    
    .logo-text h1 {
        font-size: 18px;
    }
    
    .tab {
        padding: 6px 12px;
        font-size: 11px;
        margin-right: 5px;
    }
    
    .search-box input {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .search-btn {
        padding: 0 15px;
        font-size: 12px;
    }
    
    /* 筛选栏优化 */
    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .filters {
        width: 100%;
        flex-direction: column;
        gap: 10px;
    }
    
    .filter-select {
        width: 100%;
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .refresh-btn {
        width: 100%;
    }
    
    .refresh-btn button {
        width: 100%;
        padding: 8px 15px;
        font-size: 13px;
    }
    
    /* 表格进一步优化 */
    .trade-list {
        margin: 0;
        padding: 0;
        width: 100%;
    }
    
    .trade-table {
        font-size: 11px;
        min-width: 650px;
    }
    
    .trade-table th,
    .trade-table td {
        padding: 8px 4px;
        font-size: 10px;
    }
    
    .btn-contact {
        padding: 4px 8px;
        font-size: 9px;
    }
    
    /* 卡片进一步优化 */
    .main-content {
        padding: 10px 0;
    }
    
    .container {
        padding: 0 5px;
    }
    
    .dynamics-list .item {
        padding: 8px 10px;
        font-size: 11px;
        flex-direction: column;
        align-items: flex-start;
        gap: 3px;
    }
    
    .model {
        margin-bottom: 3px;
    }
    
    .volume, .location {
        font-size: 10px;
    }
    
    .news-item {
        padding: 8px 10px;
    }
    
    .news-item a {
        font-size: 11px;
    }
    
    .trade-tab {
        padding: 6px 8px;
        font-size: 12px;
        margin-right: 3px;
    }
    
    .service-item {
        padding: 10px;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 8px;
    }
    
    .service-icon {
        width: 40px;
        height: 40px;
    }
    
    .service-info h4 {
        font-size: 12px;
    }
    
    .service-info p {
        font-size: 10px;
    }
    
    .stat-item {
        padding: 8px;
    }
    
    .stat-label, .stat-value {
        font-size: 11px;
    }
    
    .user-panel {
        padding: 12px;
    }
    
    .user-actions .btn-primary {
        padding: 10px 15px;
        font-size: 13px;
    }
    
    /* VIP推广进一步优化 */
    .vip-promotion {
        padding: 15px;
    }
    
    .vip-content h4 {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .vip-content li {
        font-size: 12px;
        margin-bottom: 8px;
    }
    
    .btn-vip {
        padding: 10px 15px;
        font-size: 13px;
    }
    
    /* 轮播图进一步优化 */
    .carousel-caption {
        padding: 10px;
    }
    
    .carousel-caption h3 {
        font-size: 14px;
        margin-bottom: 5px;
    }
    
    .carousel-caption p {
        font-size: 12px;
    }
    
    .carousel-prev, .carousel-next {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }
    
    /* 底部分页优化 */
    .pagination {
        margin-top: 20px;
    }
    
    .page-link {
        width: 30px;
        height: 30px;
        font-size: 11px;
        margin: 0 3px;
    }
}