/* 全局样式 */
:root {
    --primary-color: #0062ff;
    --secondary-color: #00c6ff;
    --accent-color: #7b61ff;
    --dark-color: #0a192f;
    --light-color: #f8f9fa;
    --gray-color: #8892b0;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0, 0.2, 1);
    --box-shadow: 0 10px 30px rgba(0, 98, 255, 0.1);
    --box-shadow-hover: 0 20px 40px rgba(0, 98, 255, 0.2);
}

/* 顶部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

/* 滚动时的顶部导航样式 */
.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header.scrolled .top-glow-bar {
    height: 30px;
    background: rgba(10, 25, 47, 0.8);
    backdrop-filter: blur(10px);
}

.header.scrolled .contact-info {
    font-size: 10px;
}

.header.scrolled #translate select {
    padding: 2px 6px;
    font-size: 10px;
}

.header.scrolled .nav-bar {
    height: 65px;
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.header.scrolled .navbar-logo img {
    max-height: 40px;
}

.header.scrolled .navbar-logo h1 {
    font-size: 1.2rem;
}

.header.scrolled .navbar-menu {
    gap: 1.5rem;
}

.header.scrolled .navbar-menu a {
    padding: 8px 12px;
    font-size: 0.9rem;
}

/* 顶部流光动效栏 */
.top-glow-bar {
    height: 50px;
    width: 100%;
    background: linear-gradient(90deg, #0a192f, #172a45, #0a192f);
    position: relative;
    overflow: hidden;
}

.top-glow-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 198, 255, 0.5), transparent);
    animation: glowFlow 3s ease-in-out infinite;
}

@keyframes glowFlow {
    0% { left: -100%; }
    100% { left: 100%; }
}

.top-glow-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.top-glow-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--light-color);
    font-size: 12px;
}

.contact-info i {
    color: var(--secondary-color);
}

.language-selector {
    display: flex;
    align-items: center;
}

#translate {
    position: relative;
    z-index: 1001;
}

#translate select {
    background: rgb(255 255 255);
    color: #343434;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 3px 8px;
    font-size: 11px;
    cursor: pointer;
    transition: var(--transition);
}

#translate select:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--secondary-color);
    box-shadow: 0 2px 8px rgba(0, 198, 255, 0.3);
}

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

body {
    font-family: 'Inter', 'Microsoft YaHei', Arial, sans-serif;
    background-color: var(--dark-color);
    color: var(--light-color);
    line-height: 1.6;
    overflow-x: hidden;
}



/* 导航栏 */
.nav-bar {
    background: white;
    height: 150px;
    width: 100%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-bar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1000;
}

.nav-bar-container .language-selector {
    display: none;
}

.header.scrolled .nav-bar-container .language-selector {
    display: flex;
    margin-left: 20px;
}

.language-selector-dropdown {
    position: relative;
}

.current-language {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    background: white;
    color: #333;
    transition: all 0.3s ease;
}

.current-language:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 98, 255, 0.1);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #f5f5f5 !important;
    border: 1px solid #e0e0e0 !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    min-width: 150px !important;
    z-index: 1001 !important;
    max-height: 200px !important;
    overflow-y: auto !important;
}

.language-option {
    padding: 8px 16px !important;
    cursor: pointer !important;
    transition: background-color 0.2s ease !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    color: #333333 !important;
}

.language-option:hover {
    background: #e9ecef !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .language-selector {
        position: relative;
        z-index: 1001;
    }
    
    .current-language {
        padding: 4px 8px;
        font-size: 12px;
        min-width: 80px;
    }
    
    .language-dropdown {
        min-width: 120px;
        max-height: 180px;
        position: absolute;
        top: 100%;
        right: 0;
        margin-top: 5px;
        z-index: 1001;
    }
    
    .language-option {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    /* 确保导航栏右侧元素在手机版上正确显示 */
    .navbar-right {
        gap: 5px;
        display: flex;
        align-items: center;
    }

    .menu-toggle {
        display: flex !important;
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    /* 顶部流光动效栏在移动端的样式 */
    .top-glow-bar {
        height: 40px;
    }

    .top-glow-container {
        padding: 0 10px;
    }

    .top-glow-right {
        gap: 10px;
    }

    .contact-info {
        font-size: 10px;
    }

    #translate select {
        padding: 2px 6px;
        font-size: 10px;
    }

    /* 导航栏在移动端的样式 */
    .nav-bar {
        height: 120px;
    }

    .nav-bar-container {
        padding: 0 10px;
    }

    .navbar-logo h1 {
        font-size: 1rem;
    }

    .navbar-logo img {
        max-height: 30px;
    }

    .navbar-menu {
        gap: 8px;
    }

    .navbar-menu li a {
        padding: 6px 10px;
        font-size: 14px;
    }
    
    /* 手机版隐藏购物车、会员中心、退出登录的文字 */
    .top-glow-right .cart-info span:not(.cart-count),
    .top-glow-right > div:not(.cart-info):not(.contact-info):not(.language-selector) span {
        display: none;
    }
    
    /* 手机版缩小图标 */
    .top-glow-right i {
        font-size: 14px;
    }
    
    /* 手机版缩小购物车图标和徽章 */
    .top-glow-right .cart-info {
        margin-right: 8px !important;
    }
    
    .top-glow-right .cart-info a {
        gap: 3px;
    }
    
    /* 手机版缩小logo */
    .navbar-logo img {
        max-height: 25px !important;
    }
    
    /* 手机版公司名字不换行 */
    .navbar-logo h1 {
        font-size: 0.9rem !important;
        white-space: nowrap;
    }
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 16px;
    margin: 0;
    padding: 0;
}

.navbar-menu li a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition);
}

.navbar-menu li a:hover {
    background-color: rgba(0, 98, 255, 0.05);
    color: var(--primary-color);
}



/* 轮播图样式 */
.banner-section {
    width: 100%;
    overflow: hidden;
    position: relative;
    margin-top: 200px;
    box-shadow: var(--box-shadow);
    transition: margin-top 0.3s ease;
}

.header.scrolled + .banner-section {
    margin-top: 85px;
}

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

.banner-item {
    position: relative;
    width: 100%;
    display: none;
    transition: var(--transition);
    z-index: 1;
}

.banner-item.active {
    position: relative;
    display: block;
    z-index: 2;
}

.banner-item a {
    display: block;
    width: 100%;
}

.banner-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform 5s ease;
}

.banner-item:hover img {
    transform: scale(1.05);
}

/* 轮播图内容样式 */
.banner-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
    color: white;
    z-index: 2;
}

.banner-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner-description {
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 800px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 轮播图内容响应式设计 */
@media (max-width: 768px) {
    .banner-content {
        padding: 1.5rem;
    }
    
    .banner-title {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .banner-description {
        font-size: 1rem;
        line-height: 1.4;
    }
}

@media (max-width: 480px) {
    .banner-content {
        padding: 1rem;
    }
    
    .banner-title {
        font-size: 1.2rem;
    }
    
    .banner-description {
        font-size: 0.9rem;
    }
}

.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(20, 35, 60, 0.8);
    backdrop-filter: blur(20px);
    color: white;
    border: 1px solid rgba(0, 98, 255, 0.3);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 3;
    box-shadow: var(--box-shadow);
}

.banner-prev {
    left: 20px;
}

.banner-next {
    right: 20px;
}

.banner-prev:hover,
.banner-next:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--box-shadow-hover);
    border-color: transparent;
}

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(0, 98, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.banner-dot.active {
    background: var(--secondary-color);
    width: 30px;
    border-radius: 6px;
    border-color: var(--secondary-color);
}

.banner-dot:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: scale(1.2);
}

/* 轮播图响应式设计 */
@media (max-width: 992px) {
    .banner-prev,
    .banner-next {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .banner-section {
        margin-top: 160px;
    }

    .banner-prev,
    .banner-next {
        top: 50%;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .banner-prev {
        left: 10px;
    }
    
    .banner-next {
        right: 10px;
    }

    .banner-indicators {
        bottom: 10px;
        gap: 8px;
    }

    .banner-dot {
        width: 8px;
        height: 8px;
    }

    .banner-dot.active {
        width: 20px;
    }
}



.navbar.scrolled {
    background: rgb(255 255 255);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

/* 确保在移动端导航菜单正确显示 */
@media (max-width: 768px) {
    .navbar-container {
        height: 80px;
        padding: 0 1rem;
    }
    
    .navbar-logo {
        font-size: 1.2rem;
    }
    
    .navbar-logo img {
        max-height: 35px;
    }
    
    .navbar-menu {
        top: 80px;
    }
}

.navbar-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 700;
    font-size: 1.5rem;
    position: relative;
    z-index: 1001;
}

.navbar-logo img {
    max-height: 50px;
    margin-right: 1rem;
    border-radius: 8px;
}

.navbar-logo h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.navbar-menu li {
    position: relative;
}

.navbar-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 1rem;
    padding: 12px 16px;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 98, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.navbar-menu a:hover::before {
    left: 100%;
}

.navbar-menu a:hover {
    background: rgba(0, 98, 255, 0.05);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 98, 255, 0.15);
}

.navbar-menu a i {
    font-size: 1.1rem;
    transition: var(--transition);
}

.navbar-menu a:hover i {
    transform: rotate(10deg) scale(1.2);
    color: var(--secondary-color);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--dark-color);
    transition: var(--transition);
    background: rgba(240, 240, 240, 0.8);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0, 98, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 98, 255, 0.1);
    flex-shrink: 0;
    min-width: 45px;
    z-index: 1002;
    position: relative;
}

.menu-toggle i {
    display: block;
    line-height: 1;
    margin: auto;
}

.menu-toggle:hover {
    color: var(--primary-color);
    transform: rotate(90deg);
    box-shadow: 0 6px 20px rgba(0, 98, 255, 0.2);
}

/* 确保在桌面版隐藏菜单按钮并显示导航菜单 */
@media (min-width: 769px) {
    .menu-toggle {
        display: none !important;
    }
    
    .navbar-menu {
        display: flex !important;
        position: static;
        background: transparent;
        box-shadow: none;
        border: none;
        padding: 0;
        gap: 16px;
        flex-direction: row;
        max-height: none;
        overflow-y: visible;
        border-radius: 0;
        transform: none !important;
        opacity: 1 !important;
    }
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 80px 2rem 0;
}



.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    margin-bottom: 2rem;
    background: linear-gradient(90deg, var(--light-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.hero p {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: #ffffff;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 98, 255, 0.3);
}

.btn:hover::before {
    left: 100%;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 2rem;
}

/* 章节标题 */
.section-title {
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.section-title h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--light-color);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-title p {
    font-size: 1.2rem;
    color: #ffffff;
    max-width: 700px;
    margin: 0 auto;
}

/* 公司介绍详情 */
.company-detail {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 4rem;
    margin-bottom: 4rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.company-detail:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.detail-header {
    text-align: center;
    margin-bottom: 4rem;
}

.detail-header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--light-color);
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--light-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-header p {
    font-size: 1.2rem;
    color: var(--gray-color);
}

/* 公司形象照 */
.company-image {
    text-align: center;
    margin-bottom: 4rem;
}

.company-image img {
    max-width: 100%;
    max-height: 600px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.company-image img:hover {
    transform: scale(1.02);
    box-shadow: var(--box-shadow-hover);
}

/* 公司介绍内容 */
.company-content {
    margin-bottom: 4rem;
}

.company-content h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 2rem;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.company-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-color);
    margin-bottom: 2rem;
    text-align: justify;
}

/* 公司信息 */
.company-info {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 3rem;
    margin-bottom: 4rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
}

.company-info:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* 返回按钮 */
.back-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
}

.back-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.back-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 98, 255, 0.3);
}

.back-btn:hover::before {
    left: 100%;
}

@media (max-width: 768px) {
    .info-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .company-detail {
        padding: 2rem;
    }
    
    .detail-header h1 {
        font-size: 2rem;
    }
    
    .company-content h2 {
        font-size: 1.8rem;
    }
    
    .company-image img {
        max-height: 400px;
    }
    
    .company-info {
        padding: 2rem;
    }
    
    .back-btn {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

.info-item {
    text-align: center;
    padding: 2rem;
    background: rgba(20, 35, 60, 0.6);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 98, 255, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .info-item {
        padding: 1.5rem;
    }
    
    .info-item i {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .info-item h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .info-item p {
        font-size: 0.9rem;
    }
}

.info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-5px);
    background: rgba(20, 35, 60, 0.8);
    border-color: rgba(0, 98, 255, 0.3);
}

.info-item:hover::before {
    transform: scaleX(1);
}

.info-item i {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.info-item:hover i {
    transform: scale(1.1) rotate(5deg);
}

.info-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.info-item p {
    color: #ffffff;
    transition: var(--transition);
}

.info-item:hover h3 {
    color: var(--secondary-color);
}

/* 公司介绍 */
.company-intro {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 3rem;
    margin-bottom: 4rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
}

.company-intro:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
}

.intro-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 98, 255, 0.2), rgba(0, 198, 255, 0.2));
    opacity: 0;
    transition: var(--transition);
}

.intro-image:hover {
    transform: scale(1.02);
    box-shadow: var(--box-shadow-hover);
}

.intro-image:hover::before {
    opacity: 1;
}

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

.intro-image:hover img {
    transform: scale(1.05);
}

.intro-text h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 2rem;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #dcdee5;
    margin-bottom: 2rem;
}

/* 资质证书 */
.certificates {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
}

.certificates:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.certificate-container {
    position: relative;
    margin-top: 2rem;
    overflow: hidden;
    padding: 20px;
    background-color: rgba(20, 35, 60, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.certificate-wrapper {
    position: relative;
    overflow: hidden;
    margin: 0 60px;
}

.certificate-grid {
    display: flex;
    gap: 0;
    transition: transform 0.5s ease;
    width: fit-content;
}

.certificate-item {
    flex: 0 0 25%;
    max-width: 25%;
    background: rgba(20, 35, 60, 0.6);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid rgba(0, 98, 255, 0.1);
    position: relative;
    height: 160px;
}

.certificate-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 98, 255, 0.1), rgba(0, 198, 255, 0.1));
    opacity: 0;
    transition: var(--transition);
}

.certificate-item:hover {
    transform: translateY(-10px) rotate(2deg);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

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

.certificate-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.certificate-item:hover img {
    transform: scale(1.1);
}

.certificate-item p {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(10, 25, 47, 0.9));
    color: var(--light-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
    transform: translateY(100%);
    transition: var(--transition);
}

.certificate-item:hover p {
    transform: translateY(0);
}

.certificate-prev,
.certificate-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    border: 1px solid rgba(0, 98, 255, 0.3);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
    box-shadow: var(--box-shadow);
}

.certificate-prev {
    left: 10px;
}

.certificate-next {
    right: 10px;
}

.certificate-prev:hover,
.certificate-next:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--box-shadow-hover);
    border-color: transparent;
}

/* 产品分类 */
.product-categories {
    margin-bottom: 2rem;
}

.category-tabs-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
    margin-top: 0.5rem;
    position: relative;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.category-tabs-container::-webkit-scrollbar {
    display: none;
}

.all-products-tab {
    flex-shrink: 0;
    margin-right: 1rem;
}

.category-tabs-scroll {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.category-tab {
    padding: 0.8rem 2rem;
    background: rgba(20, 35, 60, 0.6);
    border: 1px solid rgba(0, 98, 255, 0.2);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    color: #ffffff;
    font-weight: 500;
    font-size: 0.9rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.category-tab:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.category-tab.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    box-shadow: var(--box-shadow);
}



.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.product-card {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 98, 255, 0.2);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.product-image {
    position: relative;
    overflow: hidden;
    padding-top: 75%; /* 4:3 宽高比 */
    height: 0;
    background-color: rgba(20, 35, 60, 0.6);
}

.product-image img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 0.5rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-info p {
    color: var(--gray-color);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    flex-shrink: 0;
    box-shadow: var(--box-shadow);
}

.product-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 98, 255, 0.3);
}

.product-view {
    color: var(--gray-color);
    font-size: 1.1rem;
    transition: var(--transition);
}

.product-view:hover {
    transform: scale(1.2);
}

/* 联系我们 */
.contact-section {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 3rem;
    margin-bottom: 4rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
}

.contact-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.contact-content {
    text-align: center;
}

.contact-content p {
    font-size: 1.2rem;
    color: #ffffff;
    margin-bottom: 3rem;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.contact-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

/* 页脚 */
.footer {
    background: #1a1a2e;
    padding: 60px 0 0;
    position: relative;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 第一列：关于我们 */
.footer-about .footer-logo {
    margin-bottom: 20px;
}

.footer-about .footer-logo img {
    max-height: 40px;
    max-width: 150px;
}

.footer-about .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
}

.footer-about .footer-desc {
    color: #8892b0;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 25px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social .social-link {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8892b0;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.footer-social .social-link:hover {
    background: #0062ff;
    color: #ffffff;
    transform: translateY(-3px);
}

/* 第二列：联系我们 */
.contact-list {
    list-style: none;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    color: #8892b0;
    font-size: 14px;
    line-height: 1.6;
}

.contact-list li i {
    color: #0062ff;
    font-size: 14px;
    margin-top: 3px;
    width: 16px;
}

/* 第三列：产品分类 */
.product-list {
    list-style: none;
}

.product-list li {
    margin-bottom: 10px;
}

.product-list li a {
    color: #8892b0;
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.product-list li a i {
    font-size: 10px;
    color: #0062ff;
}

.product-list li a:hover {
    color: #ffffff;
    padding-left: 5px;
}

/* 第四列：订阅资讯 */
.footer-newsletter .newsletter-desc {
    color: #8892b0;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.newsletter-form input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 15px;
    border-radius: 4px;
    color: #ffffff;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.newsletter-form input::placeholder {
    color: #8892b0;
}

.newsletter-form input:focus {
    border-color: #0062ff;
}

.newsletter-form button {
    background: #0062ff;
    color: #ffffff;
    border: none;
    padding: 12px 20px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    background: #0052d4;
    transform: translateY(-2px);
}

.newsletter-form button i {
    font-size: 12px;
}

.footer-bottom {
    text-align: center;
    padding: 20px;
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #8892b0;
    font-size: 13px;
}

/* 响应式 */
@media (max-width: 992px) {
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .footer {
        padding: 40px 0 0;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 1.5rem;
    }
    
    .footer-section h3 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-about .footer-logo img {
        max-height: 35px;
    }
    
    .footer-social {
        gap: 10px;
    }
    
    .footer-social .social-link {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .footer-bottom {
        margin-top: 30px;
        padding: 15px;
        font-size: 12px;
    }
}

/* 证书查看模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(20px);
    animation: fadeIn 0.3s ease;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    display: block;
    max-width: 90%;
    max-height: 90%;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 98, 255, 0.3);
    animation: zoomIn 0.3s ease;
}

.close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: var(--light-color);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(20, 35, 60, 0.8);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close:hover {
    color: var(--secondary-color);
    transform: rotate(90deg);
    background: rgba(20, 35, 60, 1);
}

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

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

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-container {
        padding: 0 1rem;
    }

    .navbar-logo h1 {
        font-size: 1rem;
        font-weight: 700;
    }
    
    .menu-toggle {
        display: flex !important;
        z-index: 1001;
        position: relative;
    }

    .navbar-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        padding: 3rem 0;
        gap: 2rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        border-bottom: 2px solid rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        z-index: 999;
        border-radius: 0 0 20px 20px;
    }
    
    .navbar-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .navbar-menu::-webkit-scrollbar {
        width: 6px;
    }

    .navbar-menu::-webkit-scrollbar-track {
        background: rgba(240, 240, 240, 0.6);
    }

    .navbar-menu::-webkit-scrollbar-thumb {
        background: rgba(0, 98, 255, 0.5);
        border-radius: 3px;
    }

    .navbar-menu::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 98, 255, 0.8);
    }

    .navbar-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .navbar-menu li {
        width: 80%;
        text-align: center;
    }

    .navbar-menu a {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        padding: 1.5rem;
        background: rgba(240, 240, 240, 0.8);
        border-radius: 12px;
        border: 1px solid rgba(0, 0, 0, 0.1);
        font-size: 1.2rem;
        font-weight: 600;
        color: #333333;
        transition: var(--transition);
    }

    .navbar-menu a:hover {
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        color: white;
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0, 98, 255, 0.4);
        border-color: transparent;
    }

    .navbar-menu a i {
        font-size: 1.5rem;
        transition: var(--transition);
    }

    .navbar-menu a:hover i {
        transform: rotate(10deg) scale(1.2);
    }



    .intro-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .container {
        padding: 3rem 1rem;
    }

    .company-info {
        display: none;
    }

    .company-intro,
    .certificates,
    .contact-section {
        padding: 2rem;
    }

    .section-title {
        margin-bottom: 3rem;
    }

    .certificate-container {
        padding: 1rem;
        position: relative;
    }

    .certificate-wrapper {
        margin: 0;
        overflow: hidden;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .certificate-grid {
        gap: 0;
        display: flex;
        transition: transform 0.5s ease;
        width: fit-content;
    }

    .certificate-item {
        flex: 0 0 100%;
        max-width: 100%;
        margin-right: 0;
        position: relative;
        background: transparent;
        border: none;
        box-shadow: none;
        border-radius: 0;
    }

    .certificate-item img {
        width: 100%;
        height: auto;
        object-fit: contain;
        display: block;
        background-color: white;
    }

    .certificate-prev,
    .certificate-next {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background: rgba(255, 255, 255, 0.9);
        color: var(--primary-color);
        border: 1px solid rgba(0, 98, 255, 0.3);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
        z-index: 2;
        box-shadow: var(--box-shadow);
    }

    .certificate-prev {
        left: 5px;
    }

    .certificate-next {
        right: 5px;
    }

    .certificate-prev:hover,
    .certificate-next:hover {
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        color: white;
        transform: translateY(-50%) scale(1.1);
        box-shadow: var(--box-shadow-hover);
        border-color: transparent;
    }

    /* 产品分类 - 移动端 */
    .category-tabs-container {
        padding: 0 1rem;
        justify-content: flex-start;
        position: relative;
    }
    
    .all-products-tab {
        flex-shrink: 0;
        position: relative;
        z-index: 100;
        background: rgba(20, 35, 60, 1);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(0, 98, 255, 0.3);
        margin-right: 0.8rem;
    }
    
    .category-tabs-scroll {
        flex-shrink: 0;
        gap: 0.8rem;
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none;
        -ms-overflow-style: none;
        flex-grow: 1;
    }
    
    .category-tabs-scroll::-webkit-scrollbar {
        display: none;
    }
    
    .category-tab {
        padding: 0.6rem 1.2rem;
        font-size: 0.8rem;
        background: rgba(20, 35, 60, 0.6);
    }

    .product-grid {
        gap: 1rem;
        grid-template-columns: repeat(2, 1fr);
    }

    .product-card {
        background: rgba(16, 30, 54, 0.8);
        backdrop-filter: blur(20px);
        border-radius: 12px;
        overflow: hidden;
        box-shadow: var(--box-shadow);
        transition: var(--transition);
        padding: 0;
        border: 1px solid rgba(0, 98, 255, 0.2);
    }

    .product-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--box-shadow-hover);
        border-color: rgba(0, 98, 255, 0.4);
    }

    .product-image {
        padding-top: 100%; /* 1:1 宽高比 */
        border-radius: 12px 12px 0 0;
        overflow: hidden;
        background-color: rgba(20, 35, 60, 0.6);
    }

    .product-info {
        padding: 1.5rem;
        padding-bottom: 2rem;
    }

    .product-info h3 {
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--light-color);
        margin-bottom: 0.5rem;
        line-height: 1.3;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* 只隐藏产品列表中的描述，不影响产品详情页 */
    .product-list .product-info p {
        display: none;
    }

    .product-price {
        display: block;
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--secondary-color);
        margin-bottom: 1rem;
    }

    .product-btn {
        padding: 0.6rem 1.5rem;
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        box-shadow: var(--box-shadow);
        font-size: 0.85rem;
        margin-top: 0;
    }

    .product-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .product-view {
        display: none;
    }

    .footer {
        display: none;
    }

    .footer-container {
        gap: 2rem;
    }

    /* 底部导航栏 */
    .mobile-footer-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: rgba(10, 25, 47, 0.98);
        backdrop-filter: blur(20px);
        border-top: 2px solid rgba(0, 98, 255, 0.4);
        display: flex;
        align-items: center;
        justify-content: space-around;
        padding: 0.8rem 0;
        z-index: 1000;
        box-shadow: 0 -5px 20px rgba(0, 98, 255, 0.2);
    }

    .mobile-footer-nav::-webkit-scrollbar {
        display: none;
    }

    .mobile-footer-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.3rem;
        text-decoration: none;
        color: #ffffff;
        transition: var(--transition);
        padding: 0.4rem;
        border-radius: 12px;
        position: relative;
        flex: 1;
        max-width: 25%;
        text-align: center;
    }

    .mobile-footer-nav a:hover {
        color: var(--secondary-color);
        background: rgba(20, 35, 60, 0.8);
        transform: translateY(-5px);
    }

    .mobile-footer-nav a i {
        font-size: 1.5rem;
        transition: var(--transition);
        position: relative;
    }

    .mobile-footer-nav a:hover i {
        transform: scale(1.3) rotate(5deg);
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .mobile-footer-nav a span {
        font-size: 0.8rem;
        font-weight: 500;
        transition: var(--transition);
    }

    .mobile-footer-nav a:hover span {
        color: var(--light-color);
    }

    .mobile-footer-nav a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        border-radius: 2px;
        transition: var(--transition);
    }

    .mobile-footer-nav a:hover::after {
        width: 80%;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 98, 255, 0.2);
    border-radius: 50%;
    border-top-color: var(--secondary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(20, 35, 60, 0.6);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* 确保移动端导航栏只在移动设备上显示 */
.mobile-footer-nav {
    display: none;
}

@media (max-width: 768px) {
    .mobile-footer-nav {
        display: flex;
    }
}

/* 产品详情页样式 */
.product-detail {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 3rem;
    margin-top: 6rem;
    margin-bottom: 4rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
    transition: var(--transition);
}

.product-header h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--light-color);
}

.product-header div {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
    align-items: start;
}

.product-images {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    background: rgba(10, 25, 47, 0.6);
    padding: 2rem;
    border: 1px solid rgba(0, 98, 255, 0.2);
}

.main-image {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: var(--border-radius);
    background: rgba(20, 35, 60, 0.6);
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.main-image video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumbnail-images {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    overflow-x: auto;
    padding-bottom: 1rem;
}

.thumbnail {
    flex: 0 0 80px;
    height: 80px;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    background: rgba(20, 35, 60, 0.6);
}

.thumbnail.active {
    border-color: var(--secondary-color);
    box-shadow: 0 0 15px rgba(0, 198, 255, 0.5);
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.thumbnail:hover img {
    transform: scale(1.1);
}

.product-info {
    display: block;
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    position: relative;
    z-index: 1;
    overflow: visible;
    transition: height 0.3s ease;
}

.product-description {
    margin-bottom: 1.5rem;
    position: relative;
}

.product-description-content {
    padding-right: 10px;
}

/* Tab 样式 */
.product-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0, 98, 255, 0.2);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    text-align: center;
    background: transparent;
    border: none;
    color: var(--gray-color);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.tab-btn.active {
    color: var(--light-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

.tab-content {
    display: none;
}

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

.product-specifications {
    min-height: auto;
    height: auto;
    overflow: visible;
    margin-top: 1.5rem;
    position: relative;
    z-index: 2;
}

.price-quantity-container {
    min-height: auto;
    height: auto;
    overflow: visible;
    margin-top: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.action-buttons {
    min-height: auto;
    height: auto;
    overflow: visible;
    margin-top: 4rem;
    position: relative;
    z-index: 2;
}

.product-description h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #ffffff;
    white-space: normal !important;
    word-wrap: break-word !important;
    overflow: visible !important;
    text-overflow: clip !important;
    height: auto !important;
    min-height: 100px;
}

.product-specifications {
    margin-top: 2rem;
}

.spec-value-btn {
    padding: 6px 16px;
    border: 1px solid rgba(0, 98, 255, 0.3);
    background: rgba(20, 35, 60, 0.6);
    color: var(--light-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.spec-value-btn:hover {
    background: rgba(0, 198, 255, 0.2);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

.price-quantity-container {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

#priceDisplay {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.action-buttons {
    margin-top: 3rem;
    display: flex;
    gap: 1rem;
}

.action-btn {
    flex: 1;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.action-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.related-products {
    margin-top: 4rem;
    margin-bottom: 4rem;
    padding-bottom: 30px;
}

.related-products h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.related-card {
    background: rgba(16, 30, 54, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 98, 255, 0.2);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.related-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 98, 255, 0.4);
}

.related-image {
    position: relative;
    overflow: hidden;
    padding-top: 100%; /* 1:1 宽高比 */
    height: 0;
    background: rgba(20, 35, 60, 0.6);
}

.related-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.related-card:hover .related-image img {
    transform: scale(1.05);
}

.related-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.related-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--light-color);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.related-info p {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.4;
    flex: 1;
}

.related-btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    margin-top: auto;
}

.related-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 98, 255, 0.3);
}

.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: #ffffff;
}

.breadcrumb a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* 产品详情页响应式设计 */
@media (max-width: 768px) {
    .product-detail {
        padding: 1.5rem;
        margin: 6rem 1rem 1rem 1rem;
        border-radius: var(--border-radius);
    }

    .product-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 1.5rem;
        align-items: start;
    }

    .price-quantity-container {
        position: static !important;
        z-index: 1 !important;
        background: transparent !important;
        padding: 1rem !important;
        border-radius: 0 !important;
        border: none !important;
        margin: 2rem 0 !important;
    }

    .action-buttons {
        position: static !important;
        z-index: 1 !important;
        background: transparent !important;
        padding: 0 !important;
        border-radius: 0 !important;
        border: none !important;
        margin-top: 1rem !important;
    }

    .product-images {
        padding: 1rem;
    }

    .main-image {
        height: 250px;
    }



    .product-header h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        word-wrap: break-word;
        white-space: normal;
    }

    .product-description {
        margin-bottom: 1.5rem;
        position: relative;
    }

    .product-description-content {
        padding-right: 10px;
    }

    /* 移动端 Tab 样式 */
    .product-tabs {
        display: flex;
        margin-bottom: 1.5rem;
        border-bottom: 1px solid rgba(0, 98, 255, 0.2);
    }

    .tab-btn {
        flex: 1;
        padding: 0.8rem;
        text-align: center;
        background: transparent;
        border: none;
        color: var(--gray-color);
        font-size: 1rem;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        position: relative;
    }

    .tab-btn.active {
        color: var(--light-color);
    }

    .tab-btn.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 3px;
        background: var(--primary-color);
        transition: var(--transition);
    }

    .tab-content {
        display: none;
    }

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

    .product-description h2 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
    }

    .product-description p {
        font-size: 1rem;
        line-height: 1.6;
        white-space: normal !important;
        word-wrap: break-word !important;
        overflow: visible !important;
        text-overflow: clip !important;
        height: auto !important;
    }

    .product-specifications {
        margin-top: 1.5rem;
    }

    #specifications {
        margin-top: 1rem;
    }

    .spec-value-btn {
        padding: 8px 12px;
        font-size: 12px;
        margin-bottom: 0.5rem;
    }

    .price-quantity-container {
        margin: 1.5rem 0;
        gap: 1rem;
    }

    #priceDisplay {
        font-size: 1.5rem;
    }

    .price-quantity-container div:nth-child(2) {
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        width: 100%;
    }

    .price-quantity-container div:nth-child(2) span {
        font-size: 0.9rem;
    }

    .price-quantity-container div:nth-child(2) input {
        width: 80px;
        padding: 0.6rem;
        font-size: 1rem;
        flex-shrink: 0;
    }

    .price-quantity-container div:nth-child(2) button {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    .action-buttons {
        flex-direction: column;
        gap: 0.8rem;
        margin-top: 1.5rem;
    }

    .action-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }

    .related-products {
        margin-top: 2rem;
    }

    .related-products h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        overflow-x: visible;
        padding-bottom: 1rem;
    }

    .related-card {
        flex: 0 0 100%;
    }

    .related-image {
        padding-top: 60%; /* 调整宽高比，减小高度 */
    }

    .related-card img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .related-info {
        padding: 1rem;
    }

    .related-info h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }

    .related-info p {
        font-size: 0.9rem;
        margin-bottom: 0.8rem;
        line-height: 1.4;
    }

    .related-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .related-info {
        padding: 1rem;
    }

    .related-info h3 {
        font-size: 1rem;
    }

    .related-info p {
        font-size: 0.8rem;
        margin-bottom: 0.8rem;
    }

    .related-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }

    .related-grid::-webkit-scrollbar {
        display: none;
    }

    /* 确保容器在手机版上正确显示 */
    .container {
        padding: 1rem;
    }
}

/* 相关产品显示控制 */
.related-grid > div:nth-child(4) {
    display: none;
}

@media (max-width: 768px) {
    .related-grid > div:nth-child(4) {
        display: block;
    }

    /* 手机版专用样式 - 确保价格和订购数量部分显示在产品描述下面 */
    .product-info {
        display: block !important;
    }

    .product-description {
        display: block !important;
        margin-bottom: 2rem !important;
        padding-bottom: 1rem !important;
    }

    .product-specifications {
        display: block !important;
    }

    .price-quantity-container {
        display: block !important;
        margin-top: 2rem !important;
        padding-top: 1rem !important;
    }

    #priceDisplay {
        text-align: center !important;
    }

    .price-quantity-container > div:nth-child(2) span {
        display: none !important;
    }

    .price-quantity-container > div:nth-child(2) {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 0.5rem !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        width: 100% !important;
    }

    .price-quantity-container > div:nth-child(2) input {
        flex: 1 !important;
        min-width: 60px !important;
        max-width: 100px !important;
    }

    .price-quantity-container > div:nth-child(2) button {
        flex-shrink: 0 !important;
    }

    .action-buttons {
        display: block !important;
        margin-top: 2rem !important;
    }

    .action-buttons button {
        display: block !important;
        width: 100% !important;
        margin-bottom: 1rem !important;
    }
}
}