/* ===================================
   越南宇兴新能源官网 - 主样式表
   ================================== */

/* 基础变量 */
:root {
    --primary-color: #00A651;
    --secondary-color: #0066CC;
    --accent-color: #FFA500;
    --dark-color: #333333;
    --light-gray: #F5F5F5;
    --border-color: #E0E0E0;
    --white: #FFFFFF;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: var(--white);
    width: 100%;
    margin: 0;
    padding: 0;
}

/* 通用样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 防止横向滚动 - 应用到各个section */
section {
    overflow: hidden;
}

.container-fluid {
    max-width: 100%;
    padding: 0 40px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    font-size: 16px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    z-index: -1;
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: #007a3d; /* 使用更深的绿色，增强与白色文字的对比度 */
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: #0052a3;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    padding: 12px 32px;
    color: var(--primary-color);
    box-shadow: none;
}
.hero-buttons .btn-outline {
    background: #0007;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* 标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(0, 166, 81, 0.05);
    border-radius: 50%;
    z-index: -1;
}

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

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-title p {
    font-size: 18px;
    color: #666;
    margin-top: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* 顶部导航栏 */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.4s ease;
}

.header.scrolled {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

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

.logo img {
    height: 35px;
}

.logo-text h1 {
    font-size: 22px;
    color: var(--primary-color);
    margin: 0;
    text-shadow: -1px 3px 5px #0003;
    background: linear-gradient(7deg, #2fa33b, #5cb18d38);
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text h1:after {
    content: ' ';
    display: block;
    height: 2px;
    background: linear-gradient(90deg, #0d8839, transparent);
    border-radius: 1px;
}

.logo-text p {
    font-size: 12px;
    color: #666;
    margin: 0;
    width: fit-content;
    font-style: italic;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.8vw;
    align-items: center;
}

/* 二级菜单样式 */
.nav-menu .has-submenu {
    position: relative;
}

.nav-menu .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    min-width: 200px;
    list-style: none;
    padding: 10px 0;
    margin-top: 0;
    padding-top: 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

/* 子菜单顶部透明区域，填补空隙 */
.nav-menu .submenu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: transparent;
}

.nav-menu .has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .submenu li {
    padding: 0;
}

.nav-menu .submenu a {
    display: block;
    padding: 12px 20px;
    color: var(--dark-color);
    font-size: 15px;
    transition: all 0.3s ease;
}

.nav-menu .submenu a::after {
    display: none;
}

.nav-menu .submenu a:hover {
    background: var(--light-gray);
    color: var(--primary-color);
    padding-left: 25px;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--dark-color);
    padding: 8px 0;
    position: relative;
    transition: all 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 2px;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* 禁用二级菜单父元素的下划线 */
.nav-menu .has-submenu > a::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-left: 5px;
    font-size: 12px;
    position: static;
    width: auto;
    height: auto;
    background: none;
    transition: transform 0.3s ease;
    border-radius: 0;
    display: inline-block;
}

.nav-menu .has-submenu:hover > a::after {
    width: auto;
    transform: rotate(180deg);
}

/* 当前页面在子菜单项时，父菜单项高亮 */
.nav-menu .has-submenu.active > a {
    color: var(--primary-color);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.language-switcher {
    display: flex;
    gap: 10px;
}

.language-switcher button {
    padding: 6px 14px;
    border: 2px solid var(--border-color);
    background: var(--white);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.language-switcher button.active,
.language-switcher button:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    border-radius: 2px;
    transition: all 0.4s ease;
}


.page-header {
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.9), rgba(0, 102, 204, 0.9)), url('../images/textures/cutcube.png');
    background-blend-mode: overlay;
    color: white;
    padding: 100px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}


.page-header .container {
    position: relative;
    z-index: 2;
}


/* Hero 区域 */
.hero {
    padding: 0;
    position: relative;
    width: 100%;
    margin: 0;
}

/* 轮播图样式 */
.hero-slider {
    position: relative;
    width: 100%;
    height: 650px;
    overflow: hidden;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .hero-slider {
        height: 500px;
    }
}

@media (max-width: 480px) {
    .hero-slider {
        height: 360px;
    }
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7) contrast(1.2);
    transition: transform 0.8s ease;
    z-index: 1; /* 确保图片在内容下方 */
}

.slide:hover img {
    transform: scale(1.05);
}

.slide-content {
    position: absolute;
    text-align: center;
    color: white;
    z-index: 2; /* 确保内容在图片上方 */
    padding: 0 20px;
    max-width: 800px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    box-sizing: border-box;
    pointer-events: none; /* 防止内容层阻挡鼠标事件 */
}

.slide-content > * {
    pointer-events: auto; /* 恢复内容元素的鼠标事件 */
}

.slide-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease;
    line-height: 1.2;
    font-weight: 700;
}

.slide-content p {
    font-size: 24px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1.2s ease;
    line-height: 1.4;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1.4s ease;
}

/* 轮播指示器 */
.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

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

.dot.active,
.dot:hover {
    background: white;
}

/* 轮播控制按钮 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.3);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 3;
    transition: background 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.slider-btn:hover {
    background: rgba(0, 0, 0, 0.6);
}

.prev-btn {
    left: 20px;
}

.next-btn {
    right: 20px;
}

/* Hero按钮样式调整 */
.hero-buttons .btn {
    padding: 16px 36px;
    font-size: 20px;
    min-width: 180px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* 为Hero区域的primary按钮添加特殊hover效果 */
.hero-buttons .btn-primary:hover {
    background: #007a3d; /* 使用更深的绿色 */
    color: var(--white); /* 确保文字颜色为白色 */
    transform: translateY(-3px) scale(1.05); /* 添加轻微缩放效果 */
    box-shadow: var(--shadow-lg);
}

/* 统计数据 */
.stats {
    background: url('../images/textures/clean-textile.png'), var(--white);
    background-blend-mode: overlay;
    padding: 60px 0;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    z-index: 1;
}

.stats .container {
    position: relative;
    z-index: 2;
}

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

.stat-item {
    text-align: center;
    padding: 40px 30px;
    border-radius: var(--radius-md);
    background: var(--light-gray);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.05), rgba(0, 102, 204, 0.05));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.stat-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    margin: 15px 0;
    position: relative;
    display: inline-block;
}

/* 移除重复的后缀显示，让JavaScript来处理 */
/*
.stat-number::after {
    content: attr(data-suffix);
    font-size: 24px;
    font-weight: 600;
}
*/

.stat-label {
    font-size: 18px;
    color: #666;
}

/* 业务板块 */
.services {
    background: url('../images/textures/subtle-grey.png');
    background-blend-mode: overlay;
    padding: 80px 0;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(245, 245, 245, 0.2);
    z-index: 1;
}

.services .container {
    position: relative;
    z-index: 2;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 45px 35px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.03), rgba(0, 102, 204, 0.03));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--white);
    box-shadow: 0 10px 25px rgba(0, 166, 81, 0.3);
    transition: all 0.4s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 30px rgba(0, 166, 81, 0.4);
}

/* 业务卡片图片样式 */
.business-image,
.service-image {
    width: 100%;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 20px;
}

.business-image img,
.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.service-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.service-card p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8;
}

/* 优势展示 */
.advantages {
    background: url('../images/textures/subtle-dots.png'), var(--white);
    background-blend-mode: overlay;
    padding: 80px 0;
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    z-index: 1;
}

.advantages .container {
    position: relative;
    z-index: 2;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advantage-item {
    padding: 35px;
    border-left: 5px solid var(--primary-color);
    background: var(--light-gray);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0, 166, 81, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.advantage-item:hover::before {
    opacity: 1;
}

.advantage-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.advantage-item h4 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.advantage-item p {
    color: #666;
    line-height: 1.8;
}

/* 合作伙伴 */
.partners {
    background: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.partners-slider-wrapper {
    margin: 50px -150px 0;
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.partners-slider-wrapper::before,
.partners-slider-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}

.partners-slider-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--white), transparent);
}

.partners-slider-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--white), transparent);
}

.partners-slider {
    display: flex;
    --partners-slider-gap: 60px;
    gap: var(--partners-slider-gap);
    animation: scroll-partners 40s linear infinite;
    width: max-content;
}

.partners-slider:hover {
    animation-play-state: paused;
}

@keyframes scroll-partners {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - var(--partners-slider-gap) / 2));
    }
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 40px;
    background: var(--white);
    border-radius: var(--radius-md);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    min-height: 120px;
    min-width: 200px;
    flex-shrink: 0;
}

.partner-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.03), rgba(0, 102, 204, 0.03));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.partner-item:hover::before {
    opacity: 1;
}

.partner-item:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.partner-item img {
    max-width: 140px;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.6);
    transition: all 0.4s ease;
}

.partner-item:hover img {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.1);
}

/* CTA 区域 */
.cta-section {
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.9), rgba(0, 102, 204, 0.9)), url('../images/textures/cutcube.png');
    background-blend-mode: overlay;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: 42px;
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.3;
}

.cta-section p {
    font-size: 22px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: #ccc;
    padding: 80px 0 30px;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: 3fr 2fr 4fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 20px;
}

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

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

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-section:last-child,
.footer-section:first-child>div {
    display: none;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: #888;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 响应式设计 */
@media (max-width: 1000px) and (min-width: 769px) {
    .nav-menu {
        gap: 1.4vw;
    }
    
    .nav-menu a {
        font-size: 12px;
        padding: 6px 0;
    }

    .logo > img {
        height: 30px;
    }
    
    .logo-text h1 {
        font-size: 16px;
        transform: scaleX(.85);
        transform-origin: left;
    }
    
    .logo-text p {
        font-size: 9px;
        transform: scaleX(1.1);
        transform-origin: left;
    }
    
    .language-switcher button {
        padding: 4px 8px;
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        gap: 0;
    }
    
    .nav-menu > li {
        width: 100%;
        margin: 0;
        padding: 0;
    }
    
    .nav-menu > li > a {
        display: block;
        padding: 12px 0;
        width: 100%;
    }

    /* 移动端二级菜单样式 */
    .nav-menu .has-submenu > a {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        padding: 12px 0;
    }
    
    .nav-menu .has-submenu > a::after {
        float: none;
        margin-left: 8px;
        flex-shrink: 0;
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-menu .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin: 0;
        padding: 0;
        box-shadow: none;
        background: var(--light-gray);
        border-radius: var(--radius-sm);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-menu .submenu::before {
        display: none;
    }

    .nav-menu .has-submenu.active .submenu {
        max-height: 300px;
        margin-top: 10px;
        padding: 5px 0;
    }

    .nav-menu .has-submenu.active > a::after {
        transform: rotate(180deg);
    }
    
    .nav-menu .submenu li {
        margin: 0;
        padding: 0;
    }

    .nav-menu .submenu a {
        display: block;
        padding: 10px 20px;
        width: 100%;
    }

    .nav-menu .submenu a:hover {
        padding-left: 25px;
    }
    
    .nav-menu .language-switcher {
        margin-top: 15px;
        padding-top: 15px;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
        animation: fadeIn 0.4s ease;
    }

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

    .hero-slider {
        height: 500px;
    }

    .slide-content {
        padding: 0 30px;
        max-width: 100%;
    }

    .slide-content h1 {
        font-size: 32px;
        margin-bottom: 15px;
    }

    .slide-content p {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .hero-buttons .btn {
        padding: 12px 30px;
        font-size: 16px;
        min-width: 160px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .section-title p {
        font-size: 16px;
    }

    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .partners-slider {
        --partners-slider-gap: 30px;
    }

    .partner-item {
        padding: 25px 30px;
        min-width: 180px;
    }

    .stat-item {
        padding: 30px 20px;
    }

    .stat-number {
        font-size: 36px;
    }

    .service-card {
        padding: 35px 25px;
    }

    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .hero-slider {
        height: 360px;
    }

    .slide-content {
        padding: 0 20px;
        max-width: 100%;
    }

    .slide-content h1 {
        font-size: 24px;
        margin-bottom: 10px;
        line-height: 1.3;
    }

    .slide-content p {
        font-size: 16px;
        margin-bottom: 15px;
        line-height: 1.5;
    }

    .hero-buttons {
        gap: 10px;
    }

    .hero-buttons .btn {
        padding: 10px 20px;
        font-size: 14px;
        min-width: 120px;
    }

    .slider-dots {
        bottom: 15px;
    }

    .prev-btn,
    .next-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .prev-btn {
        left: 10px;
    }

    .next-btn {
        right: 10px;
    }

    .stat-number {
        font-size: 32px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .section-title::before {
        width: 60px;
        height: 60px;
    }

    .service-card {
        padding: 30px 20px;
    }

    .advantage-item {
        padding: 25px;
    }

    .partners-slider {
        --partners-slider-gap: 20px;
        animation-duration: 30s;
    }

    .partner-item {
        padding: 20px 25px;
        min-height: 100px;
        min-width: 160px;
    }

    .partner-item img {
        max-width: 120px;
        max-height: 50px;
    }

    .cta-section h2 {
        font-size: 28px;
        margin-bottom: 15px;
    }

    .cta-section p {
        font-size: 16px;
        margin-bottom: 25px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    /* Benefits page responsive */
    .page-header h1 {
        font-size: 32px !important;
    }

    .page-header p {
        font-size: 16px !important;
    }

}

@media (max-width: 360px) {
    .logo > img {
        height: 30px;
    }
    
    .logo-text h1 {
        font-size: 17px;
        transform: scaleX(.9);
        transform-origin: left;
    }
    
    .logo-text p {
        font-size: 9px;
        transform: scaleX(1.1);
        transform-origin: left;
    }

    .hero-slider {
        height: 280px;
    }

    .slide-content {
        padding: 0 15px;
    }

    .slide-content h1 {
        font-size: 20px;
        margin-bottom: 8px;
        line-height: 1.2;
    }

    .slide-content p {
        font-size: 14px;
        margin-bottom: 12px;
        line-height: 1.4;
    }

    .hero-buttons {
        gap: 8px;
    }

    .hero-buttons .btn {
        padding: 8px 15px;
        font-size: 12px;
        min-width: 100px;
    }
    
    .slider-dots {
        bottom: 10px;
    }

    .container {
        padding: 0 15px;
    }

    .stat-item {
        padding: 25px 15px;
    }

    .stat-number {
        font-size: 28px;
    }

    .cta-section h2 {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .cta-section p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    /* Benefits page responsive */
    .page-header h1 {
        font-size: 26px !important;
    }

    .page-header p {
        font-size: 14px !important;
    }

}