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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    overflow-x: hidden;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiBwYXR0ZXJuVW5pdHM9InVzZXJTcGFjZU9uVXNlIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiPjxwYXRoIGQ9Ik0gNDAgMCBMIDAgMCAwIDQwIiBmaWxsPSJub25lIiBzdHJva2U9IiMyMWU2ZjMiIHN0cm9rZS13aWR0aD0iMSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuKSIvPjwvc3ZnPg==');
    background-attachment: fixed;
}

/* 移动端禁用背景图案 */
@media (max-width: 768px) {
    body {
        background-image: none;
    }
}

/* 轮播样式 */
.carousel {
    position: relative;
    overflow: hidden;
    margin: 20px 0;
}

.carousel-inner {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-item {
    min-width: 100%;
    padding: 20px;
}

.carousel-indicators {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ccc;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-indicator.active {
    background-color: #1e88e5;
    transform: scale(1.2);
}

/* 科技感元素 */
.tech-bg {
    background: linear-gradient(135deg, #f5f7fa 0%, #e3f2fd 100%);
    position: relative;
    overflow: hidden;
}

.tech-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,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');
    opacity: 0.1;
    z-index: 0;
}

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

/* 头部导航 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 120px;
    padding: 0;
}

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

/* 左右结构logo样式 - 对应图片ai_logo.jpg */
.logo-img-style {
    display: flex;
    align-items: center;
    height: 80px;
}

/* 左侧黄色图标 */
.logo-img-style .logo-icon-box {
    width: 45px;
    height: 45px;
    background: #e6a923;
    border-radius: 8px;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* 黄色图标里的白色D */
.logo-img-style .logo-icon-box::before {
    content: 'D';
    color: white;
    font-size: 24px;
    font-weight: bold;
}

/* 右侧文字上下结构 */
.logo-img-style .logo-right {
    display: flex;
    flex-direction: column;
}

.logo-img-style .logo-cn {
    font-size: 24px;
    font-weight: bold;
    color: #1e3a5f;
    letter-spacing: 2px;
    line-height: 1.2;
}

.logo-img-style .logo-en {
    font-size: 10px;
    color: #3d7ab8;
    letter-spacing: 1px;
    line-height: 1.3;
}

/* CSS复刻logo - 左右结构 */
.logo-cs-style {
    display: flex;
    align-items: center;
}

.logo-cs-style .logo-yellow-icon {
    width: 32px;
    height: 32px;
    background: #e5a822;
    border-radius: 6px;
    color: white;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
}

.logo-cs-style .logo-text-group {
    display: flex;
    flex-direction: column;
}

.logo-cs-style .logo-cn-text {
    font-size: 18px;
    font-weight: bold;
    color: #1a3a5c;
    line-height: 1.1;
    letter-spacing: 1px;
}

.logo-cs-style .logo-en-text {
    font-size: 8px;
    color: #4a8bc9;
    line-height: 1.2;
    letter-spacing: 1px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    color: white;
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-right: 15px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-name {
    font-size: 22px;
    font-weight: bold;
    color: #1e88e5;
    letter-spacing: 2px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
    margin-bottom: 2px;
}

.logo-pinyin {
    font-size: 12px;
    color: #666;
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #1e88e5;
}

.login-btn {
    background-color: transparent;
    border: 2px solid #1e88e5;
    color: #1e88e5;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.login-btn:hover {
    background-color: #1e88e5;
    color: white;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #333;
}

/* Hero 区域 */
.hero {
    background: url('images/niaogebiji.jpg') no-repeat center right;
    background-size: 100% 100%;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 60%;
    float: left;
}

.hero-visual {
    position: relative;
    z-index: 1;
    max-width: 40%;
    float: right;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
}

.hero-badge {
    background-color: #1e88e5;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 20px;
    line-height: 1.2;
}

/* 3D品牌标识 */
.brand-3d {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-logo {
    position: relative;
    text-align: center;
}

.dh-logo {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, #1976d2, #2196f3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    position: relative;
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.3);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.dh-letter {
    font-size: 72px;
    font-weight: bold;
    color: white;
    position: relative;
    z-index: 1;
}

.dh-letter.d {
    margin-right: 10px;
}

.brand-name {
    text-align: center;
}

.brand-chinese {
    font-size: 24px;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 8px;
}

.brand-english {
    font-size: 14px;
    color: #666;
    letter-spacing: 2px;
}

/* 轮播图样式 */
.hero-carousel {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    height: 100%;
    width: 100%;
}

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

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

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

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

.carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.6);
    color: white;
    padding: 16px;
    text-align: center;
    font-weight: 500;
}

.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.carousel-prev,
.carousel-next {
    background: rgba(255,255,255,0.8);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: white;
    transform: scale(1.1);
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.indicator {
    width: 10px;
    height: 10px;
    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: 5px;
}

.hero p {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid #1e88e5;
    color: #1e88e5;
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #1e88e5;
    color: white;
}

.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    max-width: 50%;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 专家定制化运输服务 */
.custom-service {
    margin: 40px 0;
    width: 100%;
}

.custom-service h2 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.service-options {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.service-option {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    flex: 1;
    min-width: 100px;
    max-width: calc(25% - 6px);
}

.service-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.service-header {
    padding: 8px;
    color: white;
    font-weight: 600;
    text-align: center;
    font-size: 12px;
}

.service-header.green {
    background: linear-gradient(90deg, #ffa726, #66bb6a, #81c784);
}

.service-header.teal {
    background: linear-gradient(90deg, #ba68c8, #4db6ac, #80cbc4);
}

.service-header.blue {
    background: linear-gradient(90deg, #ff8a65, #42a5f5, #64b5f6);
}

.service-header.light-blue {
    background: linear-gradient(90deg, #f06292, #29b6f6, #4fc3f7);
}

.service-body {
    padding: 10px;
    background-color: white;
    text-align: center;
}

.service-feature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
    color: #03a9f4;
    font-size: 12px;
}

.service-feature i {
    color: #03a9f4;
    font-size: 10px;
}

.service-time {
    font-size: 16px;
    font-weight: 600;
    color: #03a9f4;
    margin-bottom: 8px;
}

.service-tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 15px;
    background-color: #e1f5fe;
    color: #03a9f4;
    font-size: 10px;
    font-weight: 500;
}

/* 快捷服务 */
.quick-services {
    padding: 60px 0;
    background: url('images/588ku_630636a1.jpg') no-repeat center 33%;
    background-size: cover;
}

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

.service-card {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: #1e88e5;
}

.service-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 18px;
}

.service-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.service-card p {
    color: #666;
    margin-bottom: 12px;
}

.service-link {
    color: #1e88e5;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.service-link:hover {
    color: #1565c0;
    text-decoration: underline;
}

/* 产品服务 */
.products {
    padding: 36px 0;
    background: url('images/sina_20210709.jpg') no-repeat center top;
    background-size: cover;
    min-height: 50vh;
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top left, rgba(255, 255, 255, 0.7) 0%, rgba(255, 255, 255, 0.3) 30%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.section-header {
    text-align: center;
    margin-bottom: 30px;
}

.section-badge {
    color: #333;
    font-size: 20px;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 16px;
    background: none;
    padding: 0;
    border-radius: 0;
    position: relative;
}

.section-badge::before,
.section-badge::after {
    content: '';
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, transparent, #1e88e5);
}

.section-badge::after {
    background: linear-gradient(to left, transparent, #1e88e5);
}

.section-badge span {
    position: relative;
    z-index: 1;
}

.section-badge::before {
    position: relative;
}

.section-badge::before::after,
.section-badge::after::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background: #1e88e5;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(30, 136, 229, 0.2);
}

.section-badge::after::before {
    left: 0;
    right: auto;
}

.section-header h2 {
    font-size: 28px;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 14px;
    color: #000;
    max-width: 800px;
    margin: 0 auto;
}

.service-tabs {
    background-color: transparent;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid #e0e0e0;
}

.tab-btn {
    flex: 1;
    padding: 14px;
    background-color: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.tab-btn.active {
    background-color: transparent;
    border-bottom-color: #1e88e5;
    color: #1e88e5;
}

.tab-btn i {
    font-size: 24px;
}

.tab-content {
    padding: 40px;
    position: relative;
}

.tab-pane {
    display: none;
    position: relative;
    min-height: 450px;
}

.tab-pane.active {
    display: block;
}

.service-bg-image {
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
}

.sea-bg {
    background-image: url('images/ai_ship_port.jpg');
}

.air-bg {
    background-image: url('images/ai_airplane.jpg');
}

.rail-bg {
    background-image: url('images/ai_train.jpg');
}

.card-bg {
    background-image: url('images/ai_card.jpg');
}

.service-categories {
    display: flex;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.category-sidebar {
    width: 180px;
    border-right: 1px solid #e0e0e0;
}

.category-sidebar h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.category-list {
    list-style: none;
}

.category-item {
    padding: 10px 14px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    margin-bottom: 6px;
    font-size: 14px;
}

.category-item:hover {
    background-color: transparent;
}

.category-item.active {
    background-color: transparent;
    color: #1e88e5;
    font-weight: 500;
}

.category-content {
    flex: 1;
}

.category-pane {
    display: none;
}

.category-pane.active {
    display: block;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.service-item {
    background-color: transparent;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid rgba(224, 224, 224, 0.3);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.service-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #333;
    line-height: 1.4;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 6px 0;
    padding-left: 18px;
    position: relative;
    color: #666;
    font-size: 13px;
    line-height: 1.4;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4caf50;
    font-weight: bold;
    font-size: 12px;
}

/* 空运服务样式 */
.air-section {
    position: relative;
    z-index: 1;
}

.air-header {
    margin-bottom: 30px;
}

.air-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a237e;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.air-title::before {
    content: '⚡';
    font-size: 20px;
}

.air-description {
    font-size: 14px;
    color: #000;
    line-height: 1.6;
    max-width: 800px;
    margin-bottom: 20px;
}

.air-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.air-service-item {
    background: rgba(30, 136, 229, 0.6);
    color: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    position: relative;
    overflow: hidden;
}

.air-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.air-service-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    position: relative;
    z-index: 1;
}

.air-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
}

.air-service-item .service-features li::before {
    color: white;
}

/* 铁路服务样式 */
.rail-section {
    position: relative;
    z-index: 1;
}

.rail-header {
    margin-bottom: 30px;
}

.rail-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a237e;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.rail-title::before {
    content: '⛰️';
    font-size: 20px;
}

.rail-description {
    font-size: 14px;
    color: #000;
    line-height: 1.6;
    max-width: 800px;
    margin-bottom: 20px;
}

.rail-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.rail-service-item {
    background: rgba(30, 136, 229, 0.6);
    color: white;
    padding: 16px 12px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    position: relative;
    overflow: hidden;
    height: 220px;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.rail-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.rail-service-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    position: relative;
    z-index: 1;
}

.rail-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
}

.rail-service-item .service-features li::before {
    color: white;
}

/* 陆运服务样式 */
.card-section {
    position: relative;
    z-index: 1;
}

.card-header {
    margin-bottom: 30px;
}

.card-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a237e;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title::before {
    content: '🚛';
    font-size: 20px;
}

.card-description {
    font-size: 14px;
    color: #000;
    line-height: 1.6;
    max-width: 800px;
    margin-bottom: 20px;
}

.card-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card-service-item {
    background: rgba(30, 136, 229, 0.6);
    color: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    position: relative;
    overflow: hidden;
}

.card-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.card-service-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    position: relative;
    z-index: 1;
}

.card-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
}

.card-service-item .service-features li::before {
    color: white;
}

/* 统一的服务卡片样式 */
.air-service-item,
.rail-service-item,
.card-service-item,
.sea-service-item {
    background: rgba(30, 136, 229, 0.6);
    color: white;
    padding: 18px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.air-service-item::before,
.rail-service-item::before,
.card-service-item::before,
.sea-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.air-service-item:hover,
.rail-service-item:hover,
.card-service-item:hover,
.sea-service-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(33, 150, 243, 0.4);
}

.air-service-item h4,
.rail-service-item h4,
.card-service-item h4,
.sea-service-item h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
    color: white;
    position: relative;
    z-index: 1;
}

.air-service-item .service-features li,
.rail-service-item .service-features li,
.card-service-item .service-features li,
.sea-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 11px;
    padding: 5px 0;
    padding-left: 16px;
    position: relative;
    z-index: 1;
}

.air-service-item .service-features li::before,
.rail-service-item .service-features li::before,
.card-service-item .service-features li::before,
.sea-service-item .service-features li::before {
    color: white;
}

/* 海运服务样式 */
.sea-section {
    position: relative;
    z-index: 1;
}

.sea-header {
    margin-bottom: 30px;
}

.sea-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a237e;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sea-title::before {
    content: '🚢';
    font-size: 20px;
}

.sea-description {
    font-size: 14px;
    color: #000;
    line-height: 1.6;
    max-width: 800px;
    margin-bottom: 20px;
}

.sea-categories {
    display: flex;
    gap: 20px;
    min-height: 350px;
}

.sea-sidebar {
    width: 180px;
    background: rgba(25, 118, 210, 0.6);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    height: 350px;
    box-sizing: border-box;
}

.sea-category-list {
    list-style: none;
}

.sea-category-item {
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    margin-bottom: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.sea-category-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.sea-category-item.active {
    background-color: white;
    color: #1976d2;
    font-weight: 500;
}

.sea-content {
    flex: 1;
    height: 100%;
    box-sizing: border-box;
}

.sea-category-pane {
    display: none;
    height: 100%;
    box-sizing: border-box;
}

.sea-category-pane.active {
    display: block;
    height: 100%;
    box-sizing: border-box;
}

.sea-services {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    height: 100%;
    box-sizing: border-box;
}

.sea-services .sea-service-item {
    min-width: 0;
    display: flex;
    flex-direction: column;
    flex: 1;
    box-sizing: border-box;
}

/* 空运分类样式 */
.air-categories {
    display: flex;
    gap: 20px;
}

.air-sidebar {
    width: 180px;
    background: rgba(25, 118, 210, 0.6);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

.air-category-list {
    list-style: none;
}

.air-category-item {
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    margin-bottom: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.air-category-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.air-category-item.active {
    background-color: white;
    color: #1976d2;
    font-weight: 500;
}

.air-content {
    flex: 1;
}

.air-category-pane {
    display: none;
}

.air-category-pane.active {
    display: block;
}

/* 铁路分类样式 */
.rail-categories {
    display: flex;
    gap: 20px;
    min-height: 220px;
}

.rail-sidebar {
    width: 180px;
    background: rgba(25, 118, 210, 0.6);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    height: 220px;
    box-sizing: border-box;
}

.rail-category-list {
    list-style: none;
}

.rail-category-item {
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    margin-bottom: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.rail-category-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.rail-category-item.active {
    background-color: white;
    color: #1976d2;
    font-weight: 500;
}

.rail-content {
    flex: 1;
    height: 100%;
    box-sizing: border-box;
}

.rail-category-pane {
    display: none;
    height: 100%;
    box-sizing: border-box;
}

.rail-category-pane.active {
    display: block;
    height: 100%;
    box-sizing: border-box;
}

.rail-services {
    display: flex;
    gap: 20px;
    height: 100%;
    box-sizing: border-box;
}

/* 卡航分类样式 */
.card-categories {
    display: flex;
    gap: 20px;
}

.card-sidebar {
    width: 180px;
    background: rgba(25, 118, 210, 0.6);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

.card-category-list {
    list-style: none;
}

.card-category-item {
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    margin-bottom: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.card-category-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.card-category-item.active {
    background-color: white;
    color: #1976d2;
    font-weight: 500;
}

.card-content {
    flex: 1;
}

.card-category-pane {
    display: none;
}

.card-category-pane.active {
    display: block;
}

.sea-services {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    height: 100%;
}

.sea-services .sea-service-item {
    min-width: 0;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sea-service-item {
    background: rgba(30, 136, 229, 0.6);
    color: white;
    padding: 24px 16px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 350px;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.sea-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.sea-service-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(33, 150, 243, 0.4);
}

.sea-service-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: white;
    position: relative;
    z-index: 1;
    line-height: 1.3;
}

.sea-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
    z-index: 1;
    line-height: 1.4;
}

.sea-service-item .service-features li::before {
    color: white;
}

/* 空运、铁路、卡航服务卡片字体格式调整为与海运一致 */
.air-service-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
    position: relative;
    z-index: 1;
}

.air-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    z-index: 1;
}

.rail-service-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
    position: relative;
    z-index: 1;
}

.rail-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    z-index: 1;
}

.card-service-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
    position: relative;
    z-index: 1;
}

.card-service-item .service-features li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    z-index: 1;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: url('images/588ku_630636a1.jpg') no-repeat center center;
    background-size: cover;
}

.about-content {
    display: flex;
    gap: 60px;
    margin-bottom: 80px;
    align-items: flex-start;
}

.company-intro-title {
    font-size: 28px;
    font-weight: bold;
    color: #1976d2;
    margin-bottom: 20px;
}

.about-text {
    flex: 1.5;
    max-width: 450px;
}

.about-video {
    flex: 1;
    transform: scale(0.8);         /* 缩小到80%，右下角固定不动*/
}

.video-container {
    padding-top: 56.25%; /* 16:9 比例 */
    position: relative;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background-color: #f0f4f8;
    color: #666;
}

.video-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play {
    z-index: 10;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #666;
}

.about-video {
    flex: 1;
}

.video-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.video-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* 关于我们轮播图样式 */
.about-carousel-container {
    position: relative;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

.about-carousel .carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

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

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

.about-carousel-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
    box-sizing: border-box;
    pointer-events: none;
}

.about-carousel-controls button {
    pointer-events: auto;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.about-carousel-controls button:hover {
    background: rgba(0,0,0,0.8);
}

.about-carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.about-carousel-indicators button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.about-carousel-indicators button.active {
    background: white;
}

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background-color: rgba(33, 150, 243, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-play:hover {
    background-color: rgba(33, 150, 243, 1);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-play i {
    color: white;
    font-size: 32px;
    margin-left: 5px;
}

.advantages h3 {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.advantages h3::before,
.advantages h3::after {
    content: '';
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, transparent, #1e88e5);
}

.advantages h3::after {
    background: linear-gradient(to left, transparent, #1e88e5);
}

.advantages h3::before {
    position: relative;
}

.advantages h3::before::after,
.advantages h3::after::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background: #1e88e5;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(30, 136, 229, 0.2);
}

.advantages h3::after::before {
    left: 0;
    right: auto;
}

.advantage-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

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

.stat-number {
    font-size: 24px;
    font-weight: bold;
    color: #1e88e5;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 11px;
    color: #666;
}

.advantage-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-item {
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: #1e88e5;
}

.feature-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    font-size: 14px;
}

.feature-item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.feature-item p {
    color: #666;
    font-size: 12px;
    line-height: 1.5;
}

/* 物流解决方案 */
.solutions {
    padding: 80px 0;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
}

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

.solution-card {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

.solution-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.solution-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

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

/* 在线询价 */
.quote {
    padding: 40px 0;
    background: url('images/588ku_630636a1.jpg') no-repeat center 33%;
    background-size: cover;
    margin-top: -40px;
}

.quote-container {
    background: linear-gradient(135deg, #1e88e5, #2196f3);
    border-radius: 16px;
    padding: 25px;
    color: white;
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.3);
}

.quote-container h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.quote-note {
    font-size: 12px;
    opacity: 0.9;
    margin-bottom: 20px;
}

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

.form-row {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
}

.btn-submit {
    background: linear-gradient(135deg, #ff9800, #f57c00);
    color: white;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.3);
}

.btn-submit:hover {
    background: linear-gradient(135deg, #ffa726, #f57c00);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 152, 0, 0.4);
}

.quote-services {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

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

.track-section label {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.track-section textarea {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    width: 240px;
    min-width: 200px;
    min-height: 80px;
    max-height: 200px;
    resize: vertical;
    line-height: 1.6;
    font-family: inherit;
}

.track-section button {
    background: linear-gradient(135deg, #4caf50, #45a049);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

.track-section button:hover {
    background: linear-gradient(135deg, #66bb6a, #4caf50);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.4);
}

/* 新闻动态 */
.news {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.news-content {
    display: flex;
    gap: 40px;
}

.news-featured {
    flex: 2;
}

.news-list {
    flex: 1;
}

.news-item {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

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

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

.news-image {
    flex: 1;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-info {
    flex: 1;
    padding: 30px;
}

.news-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

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

.news-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

/* 合作伙伴 */
.partners {
    padding: 20px 0 80px;
    background: linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8)), url('images/bing_njcanilx.jpg') no-repeat center top;
    background-size: cover;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
    position: relative;
}

.partner-ring {
    position: relative;
    width: 600px;
    height: 400px;
}

.partner-logo {
    position: absolute;
    text-align: center;
    padding: 10px;
    background-color: transparent;
    border-radius: 50%;
    transition: all 0.3s ease;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    left: 50%;
    top: 50%;
    transform-origin: center;
}

.partner-logo:hover {
    transform: translate(-50%, -50%) scale(1.5);
}

.partner-logo img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    background-color: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.partner-logo:hover img {
    transform: scale(1.1);
}

/* 椭圆环形排列 - 均匀分布 */
.partner-logo:nth-child(1) {
    transform: translate(-50%, -50%) translate(350px, 140px);
}

.partner-logo:nth-child(2) {
    transform: translate(-50%, -50%) translate(280px, 0);
}

.partner-logo:nth-child(3) {
    transform: translate(-50%, -50%) translate(105px, -94px);
}

.partner-logo:nth-child(4) {
    transform: translate(-50%, -50%) translate(-105px, -94px);
}

.partner-logo:nth-child(5) {
    transform: translate(-50%, -50%) translate(-280px, 0);
}

.partner-logo:nth-child(6) {
    transform: translate(-50%, -50%) translate(-350px, 140px);
}

.partner-logo:nth-child(7) {
    transform: translate(-50%, -50%) translate(-280px, 280px);
}

.partner-logo:nth-child(8) {
    transform: translate(-50%, -50%) translate(-105px, 374px);
}

.partner-logo:nth-child(9) {
    transform: translate(-50%, -50%) translate(105px, 374px);
}

.partner-logo:nth-child(10) {
    transform: translate(-50%, -50%) translate(280px, 280px);
}

.partner-logo:nth-child(11) {
    transform: translate(-50%, -50%) translate(0, 140px);
    z-index: 10;
}

/* 底部 */
.footer {
    background-color: #1a237e;
    color: white;
    padding: 60px 0 30px;
}

.footer-top {
    margin-bottom: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-logo .logo-icon {
    background: linear-gradient(135deg, #64b5f6, #2196f3);
}

.footer-logo .logo-name {
    color: white;
    font-size: 22px;
    font-weight: bold;
    letter-spacing: 2px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    margin-bottom: 2px;
}

.footer-logo .logo-pinyin {
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-logo p {
    margin: 20px 0;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: white;
}

.footer-qr h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.qr-code {
    background-color: white;
    padding: 5px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 10px;
    text-align: center;
}

.qr-code img {
    width: 150px;
    height: 150px;
    display: block;
    margin: 0 auto;
}

.footer-qr p {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
}

.footer-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 40px;
}

.company-info p {
    margin-bottom: 8px;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

.copyright {
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

.copyright .beian-link {
    color: inherit !important;
    text-decoration: none;
    cursor: pointer;
}

.copyright .beian-link:hover {
    color: inherit !important;
    text-decoration: none;
}

.copyright .beian-link:visited {
    color: inherit !important;
}

.copyright .beian-icon {
    width: 14px;
    height: 14px;
    margin-right: 4px;
    vertical-align: middle;
}

/* 弹窗 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    background-color: #1e88e5;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.close-btn {
    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;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.close-btn:hover {
    background-color: rgba(255,255,255,0.2);
}

.modal-body {
    padding: 30px;
}

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

.track-result {
    margin-top: 20px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    display: none;
}

.track-result.active {
    display: block;
}

/* 微信二维码样式 */
.wechat-qrcode {
    text-align: center;
    padding: 20px 0;
}

.qrcode-container {
    margin: 20px 0;
    display: flex;
    justify-content: center;
}

.qrcode-container img {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.wechat-tip {
    margin-top: 20px;
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.batch-options {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

/* 提示消息 */
.toast-msg {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #4caf50;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 3000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.toast-msg.active {
    transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .hero-visual {
        max-width: 40%;
    }
    
    .about-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .news-content {
        flex-direction: column;
    }
    
    .news-item.featured {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        padding: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-links {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .form-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quote-services {
        flex-direction: column;
        align-items: stretch;
    }
    
    .track-section {
        justify-content: space-between;
    }
    
    .service-categories {
        flex-direction: column;
    }
    
    .category-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
        padding-bottom: 20px;
        margin-bottom: 20px;
    }
    
    .category-list {
        display: flex;
        overflow-x: auto;
        gap: 10px;
        padding-bottom: 10px;
    }
    
    .category-item {
        white-space: nowrap;
        margin-bottom: 0;
    }
    
    .footer-info {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .tab-content {
        padding: 20px;
    }
    
    .quote-container {
        padding: 20px;
    }
    
    .partner-row {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 20px;
    }
    
    .partner-logo img {
        max-width: 80px;
    }
}
/* Carousel active slide - fixed */
.carousel-slide.active-carousel-slide {
    display: block !important;
    opacity: 1 !important;
}