/* 改进的全局样式 */
:root {
    --primary-color: #0066a4; /* 海洋蓝 */
    --secondary-color: #004d7a;
    --accent-color: #00a0e3;
    --light-color: #e6f7ff;
    --dark-color: #002b45;
    --text-color: #333;
    --light-text: #fff;
    --gray-color: #f4f4f4;
    --border-color: #ddd;
    --shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    color: #777;
    font-size: 18px;
}

/* 语言选择器 */
.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 30px;
    padding: 5px;
    box-shadow: var(--shadow);
}

.language-selector button {
    background: none;
    border: none;
    padding: 8px 15px;
    cursor: pointer;
    border-radius: 20px;
    font-weight: 500;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.language-selector button.active {
    background-color: var(--primary-color);
    color: var(--light-text);
}

/* 改进的头部样式 */
.new-header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 15px 0;
    transition: all 0.3s ease;
    margin: 0;
}

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

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

.logo img {
    height: 60px;
    transition: all 0.3s ease;
}

.logo-decoration {
    display: flex;
    align-items: center;
    margin-left: 10px;
}

.deco-line {
    width: 20px;
    height: 2px;
    background-color: var(--primary-color);
}

.deco-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-color);
    margin: 0 5px;
}

.modern-nav ul {
    display: flex;
}

.modern-nav ul li {
    margin-left: 30px;
}

.modern-nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.modern-nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

.modern-nav ul li a:hover:after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 改进的英雄部分 */
.hero-video {
    position: relative;
    height: 100vh;
    overflow: hidden;
    padding: 0;
    margin-top: 0;
    top: 0; /* 确保视频从顶部开始，没有空白 */
}

.hero-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    margin: 0;
    padding: 0;
}

.hero-video:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 38, 77, 0.6);
    z-index: 0;
}

.hero-video .container {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    color: var(--light-text);
    text-align: center;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* 改进的服务部分 */
.services-section {
    background-color: var(--light-color);
    position: relative;
}

.services-gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-bottom: 40px;
    overflow: hidden;
}

.services-gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.services-gallery img:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* 模态窗口样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #fff;
    margin: 15% auto;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    width: 80%;
    max-width: 500px;
    position: relative;
    text-align: center;
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover {
    color: var(--primary-color);
}

.modal h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* 响应式调整服务图片画廊 */
@media (max-width: 1200px) {
    .services-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .services-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .services-gallery {
        grid-template-columns: 1fr;
    }
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-image {
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-content p {
    color: #777;
    margin-bottom: 15px;
}

.service-content ul {
    margin-top: auto;
}

.service-content ul li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.service-content ul li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* 改进的关于我们部分 */
.about-section {
    background-color: #fff;
}

.about-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 40px;
}

.about-gallery img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.about-gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-video {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-video video {
    width: 100%;
    display: block;
}

.about-stats {
    display: flex;
    justify-content: space-between;
    margin: 30px 0;
}

.stat-item {
    text-align: center;
}

.stat-item h3 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-item p {
    color: #777;
}

.about-text h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

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

.about-text ul {
    margin-bottom: 20px;
}

.about-text ul li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.about-text ul li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.about-values {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.value-item {
    text-align: center;
}

.value-item i {
    font-size: 30px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* 改进的联系部分 */
.contact-section {
    background-color: var(--light-color);
    position: relative;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 30px;
}

.contact-info {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    position: relative;
}

.contact-info h3:after {
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 0;
}

.contact-details {
    margin-bottom: 30px;
}

.contact-details p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.contact-details p i {
    margin-right: 15px;
    font-size: 20px;
    color: var(--accent-color);
}

.google-map {
    margin-top: auto;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-form {
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    height: 100%;
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    position: relative;
}

.contact-form h3:after {
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 0;
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #666;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 102, 164, 0.2);
    outline: none;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* 改进的页脚 */
footer {
    background-color: var(--dark-color);
    color: var(--light-text);
    padding: 70px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 20px;
}

.footer-info h3,
.footer-links h3,
.footer-social h3 {
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.footer-info h3:after,
.footer-links h3:after,
.footer-social h3:after {
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 0;
}

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

.footer-info p i {
    margin-right: 10px;
    color: var(--accent-color);
}

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

.footer-links ul li a {
    color: #ccc;
    transition: all 0.3s ease;
}

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

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--light-text);
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--accent-color);
    transform: translateY(-5px);
}

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

/* 响应式样式 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-video {
        order: -1;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .modern-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .services-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 12px;
    }
    
    .services-gallery {
        grid-template-columns: 1fr;
    }
}

/* 语言内容显示 */
.nl-content {
    display: none;
}