* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, li {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Section */
header {
    background-color: #f8f8f8;
    position: relative;
    overflow: hidden;
}
header .container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0px;
}
header .container .carousel img{
    width: 100%;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 50px;
}

.hero-text {
    text-align: center;
    flex: 1;
    padding: 0 50px;
}

.hero-text h1 {
    font-size: 36px;
    color: #003399;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 20px;
}

.english-subtitle {
    font-size: 14px;
    color: #999;
    margin-bottom: 20px;
}

.hero-image {
    width: 40%;
    text-align: right;
}

/* Navigation */
.nav-container {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.main-nav {
    display: flex;
    justify-content: space-around;
    padding: 15px 0;
}

.main-nav li {
    text-align: center;
}

.main-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 14px;
    padding: 5px;
}

.main-nav img {
    width: 90px;
}

/* Promotion Section */
.promotion-section {
    padding: 30px 0;
    background: #fff;
}

.promotion-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 18px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    position: relative;
}

.promotion-title .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #003399;
    border-radius: 50%;
    margin: 0 5px;
}

.promotion-slider {
    display: flex;
    overflow-x: auto;
    gap: 20px;
    padding: 10px 0;
}

.promotion-card {
    min-width: 300px;
    border: 1px solid #eee;
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}

.promotion-card img {
    width: 100%;
    height: auto;
    display: block;
}

.card-content {
    padding: 10px;
    text-align: center;
}

.card-button {
    display: inline-block;
    padding: 5px 15px;
    background: #f8f8f8;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 12px;
    margin-top: 10px;
}

/* Team Section */
.team-section {
    padding: 40px 0;
    background: linear-gradient(to bottom, #f5f9ff, #e6f2ff);
}

.section-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    align-items: center;
}

.section-title {
    font-size: 18px;
    color: #333;
    position: relative;
    padding-left: 10px;
}

.section-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 18px;
    background: #003399;
}

.section-more {
    font-size: 14px;
    color: #007bff;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.team-card {
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    position: relative;
}

.team-card img {
    width: 100%;
    height: auto;
    display: block;
}

.team-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.9);
    padding: 15px;
    text-align: center;
}

.expert-badge {
    display: inline-block;
    background: #f0f7ff;
    color: #003399;
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 12px;
    margin-bottom: 10px;
}

.team-name {
    font-size: 18px;
    margin-bottom: 5px;
    color: #333;
}

.team-title {
    font-size: 12px;
    color: #999;
    margin-bottom: 15px;
}

.consult-btn {
    display: inline-block;
    padding: 5px 15px;
    border: 1px solid #003399;
    color: #003399;
    border-radius: 20px;
    font-size: 12px;
}

/* Advantage Section */
.advantage-section {
    padding: 40px 0;
    background: #fff;
    text-align: center;
}

.advantage-title {
    font-size: 16px;
    color: #999;
    margin-bottom: 20px;
}
.advantage-title2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}
.advantage-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.advantage-tab {
    padding: 10px 20px;
    cursor: pointer;
    position: relative;
}

.advantage-tab.active {
    color: #003399;
    font-weight: bold;
}

.advantage-tab.active::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #003399;
}

.advantage-content {
    display: none;
}

.advantage-content.active {
    display: block;
}
.advantage-img img{
    width: 80%;
}
/* Environment Section */
.environment-section {
    padding: 40px 0;
    background: #f9f9f9;
    text-align: center;
}

.environment-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
}

.environment-subtitle {
    font-size: 14px;
    color: #999;
    margin-bottom: 30px;
}

.environment-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.gallery-main {
    width: 100%;
    max-width: 600px;
    margin-bottom: 20px;
}

.gallery-main img {
    width: 100%;
    border-radius: 5px;
    display: block;
}

.gallery-thumbnails {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.gallery-thumbnail {
    width: calc(25% - 8px);
    min-width: 150px;
    height: 100px;
    overflow: hidden;
    border-radius: 5px;
}

.gallery-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Footer */
footer {
    height: 200px;
    background: url('foot.jpg') repeat;
    padding: 30px 0;
    text-align: center;
}

.footer-logo {
    margin-bottom: 20px;
}

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