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

:root {
    --primary-blue: #1a5276;
    --primary-blue-dark: #154360;
    --primary-blue-light: #2471a3;
    --dark-gray: #34495e;
    --medium-gray: #7f8c8d;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --orange-accent: #f39c12;
    --orange-hover: #d68910;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--light-gray);
}

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

.icon-search::before { content: '\1F50D'; }
.icon-phone::before { content: '\1F4DE'; }
.icon-address::before { content: '\1F4CD'; }
.icon-wechat::before { content: '\1F4AC'; }
.icon-service::before { content: '\1F6E0'; }
.icon-chat::before { content: '\1F4AC'; }
.icon-message::before { content: '\1F4AD'; }
.icon-search-large::before { content: '\1F50D'; font-size: 32px; }
.icon-business::before { content: '\1F3E2'; font-size: 32px; }
.icon-compliance::before { content: '\1F9FE'; font-size: 32px; }
.icon-support::before { content: '\1F464'; font-size: 32px; }
.icon-file::before { content: '\1F4C4'; font-size: 24px; }
.icon-hospital::before { content: '\1F3E5'; font-size: 40px; }
.icon-enterprise::before { content: '\1F3E2'; font-size: 40px; }
.icon-project::before { content: '\1F9D1'; font-size: 40px; }

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 82, 118, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.top-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    background: var(--orange-accent);
    padding: 8px 16px;
    border-radius: 4px;
}

.logo-text {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 700;
}

.slogan {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

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

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--orange-accent);
}

.nav-menu .active a {
    color: var(--orange-accent);
    font-weight: 600;
}

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

.nav-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.search-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.consult-btn {
    background: var(--orange-accent);
    color: var(--white);
}

.consult-btn:hover {
    background: var(--orange-hover);
}

.login-btn {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--white);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--white);
}

.banner-section {
    margin-top: 60px;
    position: relative;
    height: 500px;
    overflow: hidden;
}

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

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    display: none;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    display: flex;
}

.banner-content {
    text-align: center;
    color: var(--white);
    z-index: 2;
}

.banner-content h2 {
    font-size: 3rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.banner-content p {
    font-size: 1.4rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
}

.banner-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn-primary {
    background: var(--orange-accent);
    color: var(--white);
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    padding: 12px 30px;
    border: 2px solid var(--white);
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

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

.banner-indicators span.active {
    background: var(--orange-accent);
    width: 30px;
    border-radius: 6px;
}

.banner-prev, .banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 3;
    transition: all 0.3s ease;
}

.banner-prev:hover, .banner-next:hover {
    background: rgba(255, 255, 255, 0.4);
}

.banner-prev {
    left: 30px;
}

.banner-next {
    right: 30px;
}

.search-section {
    background: var(--white);
    padding: 40px 0;
    margin-top: -60px;
    position: relative;
    z-index: 5;
    box-shadow: var(--shadow-md);
}

.search-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    display: flex;
    margin-bottom: 20px;
}

.search-box input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    border-color: var(--primary-blue);
}

.search-submit {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0 30px;
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: background 0.3s ease;
}

.search-submit:hover {
    background: var(--primary-blue-dark);
}

.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border: 1px solid #e0e0e0;
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 15px;
    display: none;
}

.search-suggestions.active {
    display: block;
}

.suggestion-header {
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-bottom: 10px;
}

.suggestion-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggestion-tags span {
    padding: 5px 12px;
    background: var(--light-gray);
    border-radius: 15px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.suggestion-tags span:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.filter-btn {
    padding: 8px 20px;
    background: var(--light-gray);
    border: none;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.filter-btn:hover:not(.active) {
    background: var(--medium-gray);
    color: var(--white);
}

.search-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.action-btn {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.services-section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.section-desc {
    text-align: center;
    color: var(--medium-gray);
    margin-bottom: 40px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-blue);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.service-features {
    list-style: none;
    margin-bottom: 20px;
}

.service-features li {
    padding: 5px 0;
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.service-btn {
    padding: 8px 20px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.service-btn:hover {
    background: var(--primary-blue-dark);
}

.advantages-section {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
}

.advantages-section .section-title {
    color: var(--white);
}

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

.advantage-item {
    display: flex;
    gap: 20px;
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    opacity: 0.3;
    line-height: 1;
}

.advantage-content h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.advantage-content p {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.7;
}

.resources-section {
    padding: 60px 0;
}

.resources-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.tab-btn {
    padding: 10px 25px;
    background: var(--light-gray);
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tab-btn:hover:not(.active) {
    background: var(--medium-gray);
    color: var(--white);
}

.resources-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.resource-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.resource-item:hover {
    box-shadow: var(--shadow-md);
}

.resource-icon {
    width: 50px;
    height: 50px;
    background: var(--light-gray);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.resource-info {
    flex: 1;
    min-width: 0;
}

.resource-info h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark-gray);
}

.resource-meta {
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-bottom: 5px;
}

.resource-desc {
    font-size: 0.9rem;
    color: var(--medium-gray);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.resource-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.action-btn-small {
    padding: 6px 15px;
    background: var(--light-gray);
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn-small:hover {
    background: var(--medium-gray);
    color: var(--white);
}

.action-btn-primary {
    padding: 6px 15px;
    background: var(--orange-accent);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.resources-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 30px;
}

.page-btn {
    padding: 8px 20px;
    background: var(--white);
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.page-info {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.cases-section {
    padding: 60px 0;
    background: var(--light-gray);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.case-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-icon {
    color: var(--white);
    opacity: 0.8;
}

.case-info {
    padding: 25px;
}

.case-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-gray);
}

.case-date {
    font-size: 0.85rem;
    color: var(--orange-accent);
    margin-bottom: 10px;
}

.case-desc {
    font-size: 0.9rem;
    color: var(--medium-gray);
    line-height: 1.7;
}

.cooperation-showcase {
    text-align: center;
}

.cooperation-showcase h3 {
    margin-bottom: 30px;
    font-size: 1.4rem;
    color: var(--dark-gray);
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.partner-item {
    padding: 15px 30px;
    background: var(--white);
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 0.95rem;
    color: var(--dark-gray);
    transition: all 0.3s ease;
}

.partner-item:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.news-section {
    padding: 60px 0;
}

.news-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    display: flex;
    gap: 20px;
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.news-item:hover {
    box-shadow: var(--shadow-md);
}

.news-date {
    width: 100px;
    padding: 10px;
    background: var(--light-gray);
    border-radius: 4px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--medium-gray);
    flex-shrink: 0;
}

.news-content {
    flex: 1;
}

.news-content h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--dark-gray);
}

.news-content p {
    font-size: 0.9rem;
    color: var(--medium-gray);
    line-height: 1.6;
}

.news-tag {
    padding: 4px 12px;
    background: var(--orange-accent);
    color: var(--white);
    border-radius: 15px;
    font-size: 0.8rem;
    flex-shrink: 0;
    align-self: flex-start;
}

.news-more-btn {
    display: block;
    margin: 30px auto 0;
    padding: 10px 30px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.news-more-btn:hover {
    background: var(--primary-blue-dark);
}

.cta-section {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.cta-contact {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.contact-item i {
    color: var(--orange-accent);
}

.footer {
    background: var(--dark-gray);
    padding: 50px 0 20px;
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-column p {
    font-size: 0.9rem;
    line-height: 1.7;
    opacity: 0.8;
}

.footer-contact {
    margin-top: 10px;
}

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

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: var(--orange-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 5px;
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

.floating-service {
    position: fixed;
    right: 30px;
    bottom: 50px;
    z-index: 1000;
}

.service-toggle {
    width: 50px;
    height: 50px;
    background: var(--orange-accent);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.service-toggle:hover {
    transform: scale(1.1);
    background: var(--orange-hover);
}

.service-panel {
    position: absolute;
    bottom: 60px;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    display: none;
    min-width: 200px;
}

.service-panel.active {
    display: block;
}

.service-panel h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.service-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.service-option:hover {
    background: var(--light-gray);
}

.service-option span {
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.service-option i {
    color: var(--primary-blue);
}

@media (max-width: 992px) {
    .nav-center {
        display: none;
    }

    .nav-right {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .banner-content h2 {
        font-size: 2rem;
    }

    .banner-content p {
        font-size: 1.1rem;
    }

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

    .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .banner-section {
        height: 350px;
    }

    .banner-content h2 {
        font-size: 1.5rem;
    }

    .banner-content p {
        font-size: 1rem;
    }

    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .search-section {
        margin-top: -40px;
    }

    .search-filters {
        justify-content: center;
    }

    .resource-item {
        flex-direction: column;
        text-align: center;
    }

    .resource-actions {
        width: 100%;
        justify-content: center;
    }

    .news-item {
        flex-direction: column;
        text-align: center;
    }

    .news-date {
        width: 100%;
    }

    .news-tag {
        align-self: center;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-contact {
        text-align: left;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}