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

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

.mobile-header {
    display: none;
}

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

.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo span {
    font-size: 16px;
    font-weight: bold;
    color: #c41e3a;
    line-height: 1.3;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s;
    padding: 10px 0;
    display: block;
}

.nav ul li a:hover,
.nav ul li a.active {
    color: #c41e3a;
}

.contact span {
    color: #666;
    font-size: 14px;
}

.banner-overlay-top {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    background: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.2) 70%, transparent 100%);
    padding: 15px 0 40px;
}

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

.hero-logo img {
    height: 60px;
    width: auto;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
}

.menu-toggle {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.35);
    color: #fff;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    backdrop-filter: blur(4px);
}

.menu-toggle:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.6);
}

.banner {
    position: relative;
    height: 600px;
    margin-top: 0;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    height: 100%;
}

.banner-item {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s;
}

.banner-item.active {
    opacity: 1;
}

.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: #c41e3a;
    transform: scale(1.2);
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 60px 0 40px;
}

.section-title h2 {
    font-size: 32px;
    color: #333;
    position: relative;
    padding-left: 20px;
}

.section-title h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 30px;
    background: #c41e3a;
}

.section-title .more {
    color: #c41e3a;
    text-decoration: none;
    font-size: 14px;
}

.news-section {
    background: #f8f9fa;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.news-item {
    background: #fff;
    padding: 25px;
    transition: all 0.3s;
    border-radius: 5px;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.news-highlight {
    grid-column: span 2;
}

.news-date {
    margin-bottom: 15px;
}

.news-date .day {
    display: block;
    font-size: 36px;
    font-weight: bold;
    color: #c41e3a;
    line-height: 1;
}

.news-date .month {
    font-size: 12px;
    color: #999;
}

.news-item h3 {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.5;
    color: #333;
}

.news-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.business-section {
    background: #fff;
}

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

.business-item {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
}

.business-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.business-icon {
    height: 200px;
    overflow: hidden;
}

.business-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.business-item:hover .business-icon img {
    transform: scale(1.1);
}

.business-content {
    padding: 25px;
}

.business-content h3 {
    font-size: 20px;
    color: #c41e3a;
    margin-bottom: 15px;
}

.business-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.text-center {
    text-align: center;
    padding: 40px 0;
}

.btn-more {
    display: inline-block;
    padding: 12px 40px;
    background: #c41e3a;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.btn-more:hover {
    background: #a0172f;
}

.projects-section {
    background: #f8f9fa;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.project-item {
    position: relative;
    height: 300px;
    overflow: hidden;
    border-radius: 10px;
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.project-item:hover img {
    transform: scale(1.1);
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 20px;
    color: #fff;
}

.project-info h4 {
    font-size: 18px;
}

.contact-section {
    background: #c41e3a;
    color: #fff;
    padding: 60px 0;
}

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

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.contact-item {
    margin-bottom: 15px;
    font-size: 16px;
}

.qrcode {
    text-align: center;
}

.qrcode img {
    width: 150px;
    height: 150px;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
}

.qrcode p {
    margin-top: 15px;
    font-size: 14px;
}

.footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 30px 0;
    font-size: 14px;
}

.page-banner {
    height: 280px;
    background-size: cover;
    background-position: center;
    margin-top: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.page-banner h1 {
    font-size: 42px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.page-content {
    padding: 60px 0;
}

.breadcrumb {
    padding: 20px 0;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #666;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #c41e3a;
}

.sidebar-nav {
    background: #f8f9fa;
    padding: 30px 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav ul li {
    margin-bottom: 5px;
}

.sidebar-nav ul li a {
    display: block;
    padding: 15px 30px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-nav ul li a:hover,
.sidebar-nav ul li a.active {
    background: #c41e3a;
    color: #fff;
}

.page-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
}

.business-feature-img {
    width: 100%;
    max-height: 350px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 25px;
}

.company-intro h2 {
    font-size: 28px;
    color: #c41e3a;
    margin-bottom: 30px;
}

.company-intro p {
    font-size: 16px;
    line-height: 2;
    color: #666;
    margin-bottom: 20px;
    text-align: justify;
}

.contact-box {
    background: #f8f9fa;
    padding: 30px;
    margin-top: 40px;
    border-radius: 10px;
}

.contact-box h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

.contact-box p {
    margin-bottom: 10px;
    font-size: 15px;
}

.news-list {
    display: grid;
    gap: 20px;
}

.news-list-item {
    display: flex;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    transition: all 0.3s;
}

.news-list-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.news-list-item .date {
    width: 80px;
    text-align: center;
    padding-right: 25px;
    border-right: 2px solid #e0e0e0;
}

.news-list-item .date .day {
    font-size: 36px;
    font-weight: bold;
    color: #c41e3a;
}

.news-list-item .date .month {
    font-size: 14px;
    color: #999;
}

.news-list-item .info {
    padding-left: 25px;
}

.news-list-item .info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-list-item .info h3 a {
    color: #333;
    text-decoration: none;
}

.news-list-item .info h3 a:hover {
    color: #c41e3a;
}

.news-list-item .info .time {
    font-size: 13px;
    color: #999;
    margin-bottom: 8px;
}

.news-list-item .info p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.business-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.category-item {
    background: #f8f9fa;
    padding: 30px;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s;
    cursor: pointer;
}

.category-item:hover,
.category-item.active {
    background: #c41e3a;
    color: #fff;
}

.category-item h3 {
    font-size: 18px;
}

.business-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.business-project {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

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

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

.business-project .info {
    padding: 20px;
}

.business-project .info h4 {
    font-size: 16px;
    margin-bottom: 10px;
}

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

.pagination a {
    display: inline-block;
    padding: 8px 16px;
    background: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.pagination a:hover,
.pagination a.active {
    background: #c41e3a;
    color: #fff;
}

.sub-nav {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    border-bottom: 2px solid #e0e0e0;
}

.sub-nav a {
    padding: 15px 0;
    color: #666;
    text-decoration: none;
    position: relative;
    transition: all 0.3s;
}

.sub-nav a:hover,
.sub-nav a.active {
    color: #c41e3a;
}

.sub-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: #c41e3a;
}

.party-list {
    display: grid;
    gap: 30px;
}

.party-item {
    display: flex;
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
}

.party-item img {
    width: 300px;
    height: 200px;
    object-fit: cover;
}

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

.party-item .info h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.party-item .info h3 a {
    color: #333;
    text-decoration: none;
}

.party-item .info h3 a:hover {
    color: #c41e3a;
}

.party-item .info .time {
    font-size: 13px;
    color: #999;
    margin-bottom: 10px;
}

.party-item .info p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .header {
        position: relative;
    }
    
    .header .container {
        flex-direction: column;
        height: auto;
        padding: 12px 10px;
    }
    
    .logo {
        margin-bottom: 10px;
    }
    
    .logo img {
        height: 40px;
    }
    
    .logo span {
        font-size: 13px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    
    .nav ul li a {
        font-size: 13px;
        padding: 6px 12px;
    }
    
    .contact {
        margin-top: 8px;
        font-size: 12px;
    }
    
    .banner {
        height: 250px;
        margin-top: 0;
    }
    
    .section-title {
        padding: 40px 0 30px;
    }
    
    .section-title h2 {
        font-size: 24px;
        padding-left: 15px;
    }
    
    .section-title h2::before {
        height: 20px;
    }
    
    .news-grid,
    .business-grid,
    .projects-grid,
    .business-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .news-highlight {
        grid-column: span 1;
    }
    
    .news-item {
        padding: 20px;
    }
    
    .news-date .day {
        font-size: 28px;
    }
    
    .news-item h3 {
        font-size: 15px;
    }
    
    .business-icon {
        height: 180px;
    }
    
    .business-content {
        padding: 20px;
    }
    
    .business-content h3 {
        font-size: 18px;
    }
    
    .business-content p {
        font-size: 13px;
    }
    
    .project-item {
        height: 250px;
    }
    
    .contact-section {
        padding: 40px 0;
    }
    
    .contact-section .container {
        flex-direction: column;
        gap: 30px;
    }
    
    .contact-info h3 {
        font-size: 22px;
    }
    
    .contact-info p {
        font-size: 14px;
    }
    
    .qrcode img {
        width: 120px;
        height: 120px;
    }
    
    .page-banner {
        height: 200px;
        margin-top: 0;
    }
    
    .page-banner h1 {
        font-size: 32px;
    }
    
    .page-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar-nav {
        width: 100%;
        margin-bottom: 30px;
        padding: 0;
        background: transparent;
    }
    
    .sidebar-nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .sidebar-nav ul li {
        flex: 1 1 auto;
        margin-bottom: 0;
        min-width: 0;
    }
    
    .sidebar-nav ul li a {
        padding: 10px 14px;
        font-size: 13px;
        text-align: center;
        border: 1px solid #e0e0e0;
        background: #f8f9fa;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .sidebar-nav ul li a.active {
        background: #c41e3a;
        color: #fff;
        border-color: #c41e3a;
    }
    
    .sidebar-nav ul li a:hover {
        background: #c41e3a;
        color: #fff;
    }
    
    .business-categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .category-item {
        padding: 20px;
    }
    
    .category-item h3 {
        font-size: 14px;
    }
    
    .party-item {
        flex-direction: column;
    }
    
    .party-item img {
        width: 100%;
        height: 200px;
    }
    
    .party-item .info {
        padding: 20px;
    }
    
    .party-item .info h3 {
        font-size: 16px;
    }
    
    .sub-nav {
        flex-wrap: wrap;
        gap: 15px;
        border-bottom: none;
    }
    
    .sub-nav a {
        padding: 10px 15px;
        background: #f8f9fa;
        border-radius: 5px;
        font-size: 14px;
    }
    
    .sub-nav a.active::after {
        display: none;
    }
    
    .sub-nav a.active {
        background: #c41e3a;
        color: #fff;
    }
    
    .news-list-item {
        flex-direction: column;
        padding: 20px;
    }
    
    .news-list-item .date {
        width: 100%;
        display: flex;
        align-items: baseline;
        gap: 10px;
        padding-right: 0;
        padding-bottom: 15px;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
        margin-bottom: 15px;
    }
    
    .news-list-item .date .day {
        font-size: 28px;
    }
    
    .news-list-item .info {
        padding-left: 0;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .pagination a {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .company-intro h2 {
        font-size: 22px;
    }
    
    .company-intro p {
        font-size: 14px;
        line-height: 1.8;
    }
    
    .contact-box {
        padding: 20px;
    }
    
    .contact-box h3 {
        font-size: 18px;
    }
    
    .contact-box p {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .header .container {
        padding: 8px 10px;
    }
    
    .logo {
        margin-bottom: 8px;
    }
    
    .logo img {
        height: 35px;
    }
    
    .logo span {
        font-size: 11px;
    }
    
    .nav ul {
        gap: 4px;
    }
    
    .nav ul li a {
        font-size: 11px;
        padding: 5px 8px;
    }
    
    .contact {
        margin-top: 6px;
        font-size: 11px;
    }
    
    .banner {
        height: 200px;
    }
    
    .section-title h2 {
        font-size: 20px;
    }
    
    .page-banner h1 {
        font-size: 28px;
    }
    
    .news-item,
    .business-item,
    .news-list-item {
        padding: 15px;
    }
    
    .business-icon {
        height: 150px;
    }
    
    .project-item {
        height: 200px;
    }
    
    .page-banner h1 {
        font-size: 26px;
    }
    
    .business-categories {
        grid-template-columns: 1fr;
    }
    
    .party-item img {
        height: 180px;
    }
    
    .party-item .info h3 {
        font-size: 15px;
    }
    
    .news-list-item .info h3 {
        font-size: 15px;
    }
}

.sidebar {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    height: 100vh;
    background: #fff;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
    z-index: 1002;
    transition: right 0.35s ease;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar.active {
    right: 0;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 1001;
    display: none;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
    display: block;
}

.sidebar-header {
    position: relative;
    padding: 24px 20px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.25) 100%);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    min-height: 100px;
}

.sidebar-header-top {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header-top img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    padding: 3px;
}

.sidebar-header-top h3 {
    font-size: 14px;
    font-weight: bold;
    line-height: 1.4;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

.sidebar-close {
    background: rgba(0,0,0,0.3);
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    flex-shrink: 0;
}

.sidebar-close:hover {
    background: rgba(0,0,0,0.5);
}

.sidebar-body {
    flex: 1;
    padding: 15px 0;
}

.sidebar-body ul {
    list-style: none;
}

.sidebar-body ul li a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-body ul li a:hover,
.sidebar-body ul li a.active {
    background: #f8f9fa;
    color: #c41e3a;
    border-left-color: #c41e3a;
}

.sidebar-body ul li a i {
    width: 22px;
    text-align: center;
    font-size: 18px;
    color: #999;
}

.sidebar-body ul li a:hover i,
.sidebar-body ul li a.active i {
    color: #c41e3a;
}

.sidebar-footer {
    padding: 15px 20px;
    background: #333;
    text-align: center;
}

.sidebar-footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.sidebar-footer-qr {
    width: 60px;
    height: 60px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.sidebar-footer-info {
    text-align: left;
    font-size: 12px;
    color: #ccc;
    line-height: 1.6;
}

.sidebar-footer-info strong {
    color: #fff;
    display: block;
    font-size: 13px;
    margin-bottom: 2px;
}

.sidebar-footer-info span {
    display: block;
}

@media (max-width: 768px) {
    .header {
        display: none;
    }
    
    .mobile-header {
        display: block;
    }
    
    .desktop-sidebar {
        display: none;
    }
    
    .mobile-header {
        background: #fff;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1001;
    }
    
    .mobile-header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 15px;
        height: 50px;
    }
    
    .mobile-logo {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .mobile-logo img {
        height: 35px;
        width: auto;
    }
    
    .mobile-logo span {
        font-size: 14px;
        font-weight: bold;
        color: #c41e3a;
    }

    .sidebar {
        right: -100%;
        width: 85%;
        max-width: 320px;
    }

    .banner {
        margin-top: 0;
    }
    
    .page-banner {
        margin-top: 0;
    }
    
    .news-item,
    .business-item,
    .news-list-item {
        padding: 15px;
    }
    
    .business-icon {
        height: 150px;
    }
    
    .project-item {
        height: 200px;
    }
    
    .party-item img {
        height: 180px;
    }
    
    .party-item .info h3 {
        font-size: 15px;
    }
    
    .news-list-item .info h3 {
        font-size: 15px;
    }
}

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

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