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

:root {
    /* 颜色变量 */
    --primary-color: #0ea5e9;
    --primary-light: #38bdf8;
    --secondary-color: #10b981;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --accent-color: #8b5cf6;
    --highlight-gradient: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    
    /* 字体变量 */
    --font-main: 'Arial', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

body {
    font-family: var(--font-main);
    background-color: var(--darker-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    z-index: 0;
}

/* 星空背景 */
#starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 链接样式 */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.primary-btn {
    background-color: var(--primary-color);
    color: #ffffff;
}

.primary-btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(14, 165, 233, 0.4);
    color: #ffffff;
}

.secondary-btn {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(14, 165, 233, 0.4);
}

/* 高亮文本 */
.highlight {
    background: var(--highlight-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline;
}

/* 部分标题 */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 42px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--highlight-gradient);
    border-radius: 2px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 导航栏样式 */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 25px 0;
    transition: var(--transition);
}

#navbar.scrolled {
    background-color: rgba(15, 23, 42, 0.95);
    padding: 15px 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.logo .logo-text {
    font-size: 28px;
    font-weight: 700;
    background: var(--highlight-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.desktop-nav li {
    margin-left: 40px;
}

.desktop-nav a {
    position: relative;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    display: inline-block;
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.desktop-nav a:hover::after {
    width: 100%;
}

/* 导航栏认证按钮样式 */
.nav-auth-buttons {
    display: flex;
    gap: 12px;
    margin-left: 40px;
    align-items: center;
}

.nav-btn {
    padding: 4px 20px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.6;
    display: inline-block;
    position: relative;
    z-index: 1;
    vertical-align: middle;
    cursor: pointer;
    pointer-events: auto;
}

.nav-btn::after {
    display: none;
}

.nav-login-btn {
    background-color: var(--primary-color);
    color: #ffffff !important;
    border: 1px solid var(--primary-color);
}

.nav-login-btn:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    color: #ffffff !important;
}

.nav-register-btn {
    background-color: var(--primary-color);
    color: #ffffff !important;
    border: 1px solid var(--primary-color);
}

.nav-register-btn:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    color: #ffffff !important;
}

/* 移动端导航按钮样式 */
.mobile-nav .nav-auth-buttons {
    margin: 20px 0 0 0;
    flex-direction: column;
    gap: 15px;
    padding: 0;
}

.mobile-nav .nav-btn {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
}

/* 移动端导航触发器 */
.mobile-nav-trigger {
    display: none;
    cursor: pointer;
}

.menu-icon {
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--text-primary);
    position: relative;
    transition: var(--transition);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

.menu-icon::before {
    top: -8px;
}

.menu-icon::after {
    bottom: -8px;
}

/* 移动端导航菜单 */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--card-bg);
    flex-direction: column;
    padding: 80px 20px;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav li {
    margin: 15px 0;
}

.mobile-nav a {
    font-size: 18px;
    font-weight: 500;
    display: block;
    padding: 10px 0;
}

/* 英雄区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 150px 0 100px;
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 64px;
    margin-bottom: 30px;
    line-height: 1.2;
    font-weight: 800;
}

.hero-content p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* 首页特色内容 */
.home-features {
    padding: 80px 0;
    background-color: rgba(15, 23, 42, 0.9);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(14, 165, 233, 0.1);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(14, 165, 233, 0.2);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(14, 165, 233, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-light);
}

.feature-item h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 18px;
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 首页数据统计 */
.home-stats {
    padding: 60px 0;
    background-color: #007bff;
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-box .stat-number {
    display: block;
    font-size: 40px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #fff;
}

.stat-box .stat-label {
    display: block;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

/* 首页CTA区域 */
.home-cta {
    padding: 80px 0;
    background-color: rgba(15, 23, 42, 0.9);
    text-align: center;
}

.cta-content h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 32px;
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 18px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-buttons .btn {
    padding: 12px 30px;
    font-size: 16px;
}

/* 关于我们 */
/* ==================== 关于我们页面样式 ==================== */

/* 关于页面Hero区域 */
.about-hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
}

.about-hero-content h1 {
    font-size: 56px;
    margin-bottom: 24px;
    font-weight: 700;
}

.about-hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 公司简介区域 */
.about-intro {
    padding: 100px 0;
    position: relative;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-intro-text h2 {
    font-size: 42px;
    margin-bottom: 32px;
}

.about-large-text {
    font-size: 22px;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 24px;
    font-weight: 500;
}

.about-intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.about-intro-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image-placeholder {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px solid rgba(14, 165, 233, 0.2);
}

.about-image-placeholder svg {
    width: 200px;
    height: 200px;
    stroke: var(--primary-color);
    opacity: 0.5;
}

/* 核心价值观 */
.about-values {
    padding: 100px 0;
    background: rgba(14, 165, 233, 0.03);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.value-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(14, 165, 233, 0.1);
}

.value-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.2);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
}

.value-icon svg {
    width: 40px;
    height: 40px;
    stroke: white;
}

.value-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 发展历程 */
.about-timeline {
    padding: 100px 0;
}

.timeline {
    max-width: 900px;
    margin: 60px auto 0;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
    padding-right: 60px;
}

.timeline-item:nth-child(even) .timeline-content {
    padding-left: 60px;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--darker-bg);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
}

.timeline-content {
    flex: 1;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(14, 165, 233, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.2);
}

.timeline-content h3 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-weight: 700;
}

.timeline-content h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 企业优势 */
.about-advantages {
    padding: 100px 0;
    background: rgba(14, 165, 233, 0.03);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.advantage-item {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(14, 165, 233, 0.1);
    transition: var(--transition);
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

.advantage-item:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 35px rgba(14, 165, 233, 0.2);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    background: var(--highlight-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 20px;
    line-height: 1;
}

.advantage-item h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 关于页面CTA */
.about-cta {
    padding: 100px 0;
    text-align: center;
}

.about-cta-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 40px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 24px;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.about-cta-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.about-cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* 旧样式保留部分 */
.about-section {
    padding: 120px 0;
    background-color: #1a1a2e;
    color: #fff;
    position: relative;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    align-items: center;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-light);
}

.about-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    margin-bottom: 30px;
}

.about-text li {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
}

.about-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.about-stats {
    flex: 1;
    min-width: 300px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.stat-item {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(14, 165, 233, 0.1);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 10px;
}

.stat-label {
    display: block;
    font-size: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 服务与解决方案 */
.services-section {
    padding: 120px 0;
    background-color: #1a1a2e;
    color: #fff;
    position: relative;
    overflow-x: hidden;
}

/* 滚动容器包装器 */
.services-container {
    position: relative;
    margin: 0 auto;
    max-width: 100%;
}

.services-grid {
    display: flex;
    gap: 40px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-behavior: smooth;
    /* 隐藏滚动条但保留滚动功能 */
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;     /* Firefox */
}

/* Chrome, Safari and Opera */
.services-grid::-webkit-scrollbar {
    display: none;
}

.service-card {
    background: linear-gradient(145deg, rgba(26, 26, 46, 0.95), rgba(15, 23, 42, 0.95));
    padding: 45px 30px;
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(14, 165, 233, 0.1);
    width: 835px;
    height: 500px;
    flex-shrink: 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
    transform: rotate(45deg);
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(14, 165, 233, 0.2);
}

.service-card > * {
    position: relative;
    z-index: 1;
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(14, 165, 233, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.service-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon svg {
    color: var(--text-primary);
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.service-card p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
}

.service-link svg {
    margin-left: 10px;
    width: 16px;
    height: 16px;
    transition: var(--transition);
}

.service-link:hover svg {
    transform: translateX(5px);
}

/* 产品中心 */
.products-section {
    padding: 120px 0;
    background-color: var(--darker-bg);
    color: #fff;
    position: relative;
    z-index: 1;
    overflow-x: hidden;
}

/* 滚动容器包装器 */
.products-container {
    position: relative;
    margin: 0 auto;
    max-width: 100%;
}

/* 产品分类导航 */
.product-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin: 40px 0 30px;
    padding: 0 20px;
}

.category-btn {
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.category-btn:hover {
    background: rgba(14, 165, 233, 0.15);
    border-color: rgba(14, 165, 233, 0.5);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.category-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

.products-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
    padding: 20px 0;
    justify-content: center;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.products-grid.loaded {
    opacity: 1;
}

/* 单行滚动模式 */
.products-grid.single-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding: 20px 10px;
}

.products-grid.single-row::-webkit-scrollbar {
    display: none;
}

/* 单行无滚动模式（恰好4张卡片）*/
.products-grid.single-row-no-scroll {
    flex-wrap: nowrap;
    overflow-x: visible;
    justify-content: center;
}

.products-grid.single-row-no-scroll .product-card {
    width: calc(25% - 22.5px);
    min-width: 280px;
    max-width: 360px;
    flex-shrink: 1;
}

.product-card {
    background: rgba(255, 255, 255, 0.02);
    padding: 0;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    max-width: 380px;
    min-height: 520px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* 单行模式下的卡片 */
.products-grid.single-row .product-card {
    width: 380px;
    min-width: 380px;
    flex-shrink: 0;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 32px rgba(14, 165, 233, 0.3);
}

/* 产品图片区域 */
.product-card-image {
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(139, 92, 246, 0.05));
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    transition: transform 0.3s ease;
}

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

/* 产品内容区域 */
.product-card-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    line-height: 1.4;
}

.product-card-content p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 产品特性标签 */
.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.product-feature-tag {
    padding: 4px 12px;
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
    white-space: nowrap;
}

/* 产品链接按钮 */
.product-link {
    display: inline-block;
    padding: 10px 24px;
    background: var(--primary-color);
    color: white;
    text-align: center;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.product-link:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
    color: white;
}

/* 产品图片占位符 */
.product-card-image .image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(14, 165, 233, 0.05);
}

.product-card-image .image-placeholder svg {
    width: 100px;
    height: 100px;
    opacity: 0.3;
    stroke: var(--primary-color);
}

/* 浮动滚动箭头样式 */
.scroll-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(14, 165, 233, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.scroll-arrow:hover {
    background-color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
}

.scroll-arrow svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.scroll-arrow:hover svg {
    color: #fff;
    transform: scale(1.2);
}

.scroll-left {
    left: -25px;
}

.scroll-right {
    right: -25px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .scroll-arrow {
        width: 40px;
        height: 40px;
    }
    
    .scroll-left {
        left: -20px;
    }
    
    .scroll-right {
        right: -20px;
    }
    
    .scroll-arrow svg {
        width: 20px;
        height: 20px;
    }
    
    .service-card {
        width: 100%;
        max-width: 260px;
        min-width: 260px;
        padding: 35px 25px;
        height: 380px;
    }
    
    .product-card {
        width: 100%;
        max-width: 320px;
        min-height: 450px;
    }
    
    .products-grid.single-row .product-card {
        width: 300px;
        min-width: 300px;
    }
    
    .products-grid.single-row-no-scroll {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .products-grid.single-row-no-scroll .product-card {
        width: 100%;
        max-width: 300px;
        min-width: 260px;
        flex-shrink: 1;
    }
    
    .product-card-image {
        height: 220px;
    }
    
    .product-card-content {
        padding: 20px;
    }
    
    .products-grid {
        gap: 20px;
    }
    
    .product-categories {
        gap: 8px;
        margin: 30px 0 20px;
    }
    
    .category-btn {
        padding: 8px 18px;
        font-size: 13px;
    }
}

.case-studies-section {
    padding: 120px 0;
    background-color: var(--darker-bg);
    color: #fff;
    position: relative;
    z-index: 1;
}

/* 案例筛选器样式 */
.case-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin: 40px 0;
    justify-content: center;
}

.filter-btn {
    padding: 12px 24px;
    background-color: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
}

.filter-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
    background-color: #00bcd4;
    color: #fff;
    border-color: #00bcd4;
}

/* 案例网格布局 - 3列布局 */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-studies-grid.loaded {
    opacity: 1;
}

/* 案例卡片样式 - 重新设计 */
.case-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.05));
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    backdrop-filter: blur(10px);
}

.case-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
}

.case-card-link:hover {
    text-decoration: none;
}

/* .case-card.large 样式已移除，统一使用普通卡片 */

.case-wrapper {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-image {
    position: relative;
    height: 240px;
    overflow: hidden;
    border-radius: 20px 20px 0 0;
}

.case-image img,
.case-image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-image video.case-media {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.case-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.08), rgba(255, 255, 255, 0.03));
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.3);
    transition: background-color 0.4s ease;
}

.case-image .image-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.3;
    transition: all 0.3s ease;
}

.case-card:hover .image-placeholder svg {
    transform: scale(1.1);
    opacity: 0.5;
}

/* 案例悬停覆盖层 - 重新设计 */
.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0) 0%,
        rgba(26, 26, 46, 0.7) 60%,
        rgba(26, 26, 46, 0.95) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 40px 30px;
}

.case-card:hover .case-overlay {
    opacity: 1;
}

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

.overlay-content .case-category {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #00bcd4, #0097a7);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease 0.1s, transform 0.4s ease 0.1s;
    box-shadow: 0 5px 15px rgba(0, 188, 212, 0.3);
}

.case-card:hover .overlay-content .case-category {
    opacity: 1;
    transform: translateY(0);
}

.view-details {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 35px;
    text-decoration: none;
    font-weight: 600;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease 0.2s;
    position: relative;
    overflow: hidden;
}

.view-details::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 188, 212, 0.3), transparent);
    transition: left 0.6s ease;
}

.view-details:hover::before {
    left: 100%;
}

.view-details:hover {
    background: linear-gradient(135deg, #00bcd4, #00acc1);
    border-color: #00bcd4;
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 188, 212, 0.3);
}

.case-card:hover .view-details {
    opacity: 1;
    transform: translateY(0);
}

/* 案例内容样式 - 重新设计 */
.case-content {
    padding: 35px;
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    border-radius: 0 0 20px 20px;
}

.case-content::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 35px;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #00bcd4, transparent);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
    transform: translateX(-20px);
}

.case-card:hover .case-content::before {
    opacity: 1;
    transform: translateX(0);
}

.case-content h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #fff;
    transition: all 0.4s ease;
    position: relative;
    padding-bottom: 10px;
    font-weight: 600;
}

.case-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #00bcd4, transparent);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.case-card:hover .case-content h3::after {
    width: 80px;
}

.case-card:hover h3 {
    color: #00bcd4;
    transform: translateX(5px);
}

.case-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
    line-height: 1.7;
    flex: 1;
    font-size: 16px;
    transition: color 0.4s ease;
}

.case-card:hover .case-content p {
    color: rgba(255, 255, 255, 0.85);
}

/* 案例指标样式 - 重新设计 */
.case-metrics {
    display: flex;
    gap: 40px;
    margin-top: auto;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-item {
    text-align: center;
    flex: 1;
    position: relative;
    transition: transform 0.4s ease;
}

.case-card:hover .metric-item {
    transform: translateY(-5px);
}

.metric-item::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 15px;
    height: 15px;
    background: linear-gradient(135deg, #00bcd4, #00acc1);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s ease 0.3s;
    box-shadow: 0 0 15px rgba(0, 188, 212, 0.5);
}

.case-card:hover .metric-item::before {
    opacity: 1;
}

.metric-value {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: #00bcd4;
    line-height: 1;
    margin-bottom: 8px;
    position: relative;
    transition: all 0.4s ease;
}

.metric-value::after {
    content: '+';
    position: absolute;
    top: 0;
    right: -10px;
    font-size: 18px;
    opacity: 0.7;
    font-weight: 600;
}

.metric-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.4s ease;
}

.case-card:hover .metric-label {
    color: rgba(255, 255, 255, 0.8);
}

/* 卡片悬停效果 - 重新设计 */
.case-card:hover {
    transform: translateY(-15px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 0 2px rgba(0, 188, 212, 0.2);
    border-color: rgba(0, 188, 212, 0.3);
}

/* 大型卡片特殊样式 - 已移除，统一使用上下布局 */

/* 添加卡片发光效果 */
.case-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    background: linear-gradient(
        135deg,
        rgba(0, 188, 212, 0) 0%,
        rgba(0, 188, 212, 0.1) 50%,
        rgba(0, 188, 212, 0) 100%
    );
    opacity: 0;
    z-index: -1;
    transition: opacity 0.6s ease;
}

.case-card:hover::after {
    opacity: 1;
}

/* 响应式设计 - 重新设计 */
@media (max-width: 1200px) {
    /* large卡片样式已移除 */
}

@media (max-width: 992px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .case-content {
        padding: 25px;
    }
    
    .case-metrics {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .case-studies-section {
        padding: 80px 0;
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .case-image {
        height: 220px;
    }
    
    .case-content {
        padding: 20px;
    }
    
    .case-content h3 {
        font-size: 20px;
        padding-bottom: 10px;
    }
    
    .case-content p {
        font-size: 15px;
        line-height: 1.6;
    }
    
    .case-metrics {
        gap: 20px;
        padding-top: 15px;
    }
    
    .metric-value {
        font-size: 24px;
    }
    
    .case-overlay {
        padding: 25px 15px;
    }
    
    .overlay-content .case-category {
        padding: 6px 14px;
        font-size: 12px;
        margin-bottom: 12px;
    }
    
    .view-details {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .case-filter {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 10px 18px;
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .case-image {
        height: 220px;
    }
    
    .case-image .image-placeholder svg {
        width: 70px;
        height: 70px;
    }
    
    .case-content {
        padding: 20px;
    }
    
    .case-content h3 {
        font-size: 20px;
    }
    
    .case-metrics {
        flex-direction: column;
        gap: 20px;
    }
    
    .metric-item {
        padding: 15px 0;
    }
    
    .metric-item::before {
        top: 0;
    }
    
    .case-overlay {
        padding: 25px 15px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
}

/* 联系我们 */
.contact-section {
    padding: 120px 0;
    background-color: #1a1a2e;
    color: #fff;
    position: relative;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(14, 165, 233, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.contact-text h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #fff;
}

.contact-text p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 10px;
    color: #fff;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #00bcd4;
    background-color: rgba(255, 255, 255, 0.1);
}

.submit-btn {
    display: inline-block;
    padding: 15px 30px;
    background-color: #00bcd4;
    color: #fff;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: #00acc1;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 188, 212, 0.2);
}

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

/* 页脚 */
.footer {
    background-color: var(--dark-bg);
    padding: 100px 0 50px;
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo .logo-text {
    font-size: 28px;
    font-weight: 700;
    background: var(--highlight-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    margin-bottom: 20px;
}

.footer-logo p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
    font-size: 18px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-links h4::after,
.footer-contact h4::after,
.footer-social h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    font-size: 16px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 10px;
}

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

.footer-contact li {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.social-link svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

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

.footer-bottom p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-primary);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-light);
    transform: translateY(-5px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .section-header h2 {
        font-size: 36px;
    }
    
    .hero-content h1 {
        font-size: 54px;
    }
}

@media (max-width: 992px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-nav-trigger {
        display: block;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

/* 关于我们页面响应式 */
@media (max-width: 1024px) {
    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        flex-direction: column;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        text-align: center;
        padding: 30px;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-marker {
        left: 30px;
    }
}

@media (max-width: 768px) {
    .about-hero-content h1 {
        font-size: 40px;
    }
    
    .about-hero-subtitle {
        font-size: 16px;
    }
    
    .about-hero {
        padding: 140px 0 80px;
    }
    
    .about-intro,
    .about-values,
    .about-timeline,
    .about-advantages,
    .about-cta {
        padding: 60px 0;
    }
    
    .about-intro-text h2 {
        font-size: 32px;
    }
    
    .about-large-text {
        font-size: 18px;
    }
    
    .values-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .timeline {
        padding-left: 60px;
    }
    
    .timeline-content h3 {
        font-size: 24px;
    }
    
    .about-cta-content {
        padding: 60px 30px;
    }
    
    .about-cta-content h2 {
        font-size: 32px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .section-header {
        margin-bottom: 60px;
    }
    
    .hero-content h1 {
        font-size: 42px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .about-section,
    .services-section,
    .products-section,
    .case-studies-section,
    .contact-section {
        padding: 100px 0;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .services-grid,
    .products-grid,
    .case-studies-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* 大屏幕适配 */
@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
    }
    
    .section-header h2 {
        font-size: 52px;
    }
    
    .hero-content h1 {
        font-size: 72px;
    }
    
    .services-grid,
    .products-grid,
    .case-studies-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

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

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

.fade-in-up {
    animation: fadeInUp 1s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.float {
    animation: float 6s ease-in-out infinite;
}

/* 加载动画 */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    to {
        left: 100%;
    }
}

/* ==================== 用户中心页面样式（后台管理风格）==================== */

.user-center-body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.user-center-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* 侧边栏样式 */
.user-center-sidebar {
    width: 220px;
    background: linear-gradient(180deg, #2c3e50 0%, #34495e 100%);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
}

.sidebar-logo {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    padding: 0 20px;
}

.sidebar-logo h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-menu {
    flex: 1;
    padding: 10px 0;
    margin: 0;
    list-style: none;
    overflow-y: auto;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 14px 24px;
    color: #bfcbd9;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    position: relative;
    margin: 2px 8px;
    border-radius: 4px;
}

.menu-item:hover {
    background-color: rgba(64, 158, 255, 0.1);
    color: #409EFF;
    transform: translateX(2px);
}

.menu-item.active {
    background-color: rgba(64, 158, 255, 0.15);
    color: #409EFF;
    border-left-color: #409EFF;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(64, 158, 255, 0.2);
}

.menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: linear-gradient(180deg, #409EFF 0%, #66b1ff 100%);
    border-radius: 0 2px 2px 0;
}

.menu-icon {
    width: 18px;
    height: 18px;
    margin-right: 12px;
    flex-shrink: 0;
    stroke-width: 2;
    transition: all 0.3s ease;
}

.menu-item:hover .menu-icon,
.menu-item.active .menu-icon {
    transform: scale(1.1);
}

.menu-text {
    font-size: 14px;
    line-height: 1.5;
    flex: 1;
}

/* 主内容区 */
.user-center-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #f0f2f5;
    overflow: hidden;
}

/* 顶部导航栏 */
.user-center-header {
    height: 60px;
    background-color: white;
    border-bottom: 1px solid #e4e7ed;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
}

.back-home-link {
    color: #606266;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.back-home-link:hover {
    color: #409EFF;
}

.header-right {
    display: flex;
    align-items: center;
}

.user-dropdown {
    position: relative;
}

.user-info-text {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: #606266;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.user-info-text:hover {
    background-color: #f5f7fa;
}

.user-email-display {
    margin-right: 8px;
}

.dropdown-arrow {
    font-size: 12px;
    color: #909399;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    border: 1px solid #e4e7ed;
    border-radius: 4px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    min-width: 120px;
    display: none;
    z-index: 1000;
}

.user-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 10px 16px;
    color: #606266;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.3s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: #f5f7fa;
    color: #409EFF;
}

.logout-btn {
    border-top: 1px solid #e4e7ed;
}

/* 内容区域 */
.user-center-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.content-section {
    display: none;
}

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

/* 卡片样式 */
.section-card {
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 18px;
    font-weight: 500;
    color: #303133;
    margin: 0 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid #e4e7ed;
}

/* 用户信息样式 */
.user-info-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-row {
    display: flex;
    align-items: center;
    font-size: 14px;
}

.info-label {
    min-width: 100px;
    color: #606266;
    font-weight: 500;
}

.info-value {
    color: #303133;
    font-weight: 400;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid #EBEEF5;
    background: white;
}

.data-table thead {
    background-color: #FAFAFA;
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 500;
    color: #606266;
    font-size: 14px;
    border-bottom: 1px solid #EBEEF5;
}

.data-table td {
    padding: 12px;
    color: #606266;
    font-size: 14px;
    border-bottom: 1px solid #EBEEF5;
}

.data-table tbody tr:hover {
    background-color: #F5F7FA;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* 状态标签样式 */
.status-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 2px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.status-tag.success {
    background-color: #f0f9ff;
    color: #67C23A;
    border: 1px solid #b3e19d;
}

.status-tag.warning {
    background-color: #fdf6ec;
    color: #E6A23C;
    border: 1px solid #f5dab1;
}

.status-tag.danger {
    background-color: #fef0f0;
    color: #F56C6C;
    border: 1px solid #fbc4c4;
}

.status-tag.info {
    background-color: #f4f4f5;
    color: #909399;
    border: 1px solid #d3d4d6;
}

/* 复制激活码按钮样式 */
.copy-license-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    background-color: transparent;
    border: 1px solid #DCDFE6;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #606266;
    font-size: 12px;
    line-height: 1;
    min-width: 28px;
    height: 28px;
}

.copy-license-btn:hover {
    background-color: #409EFF;
    border-color: #409EFF;
    color: #ffffff;
    transform: scale(1.05);
}

.copy-license-btn:active {
    transform: scale(0.95);
}

.copy-license-btn svg {
    display: block;
    width: 14px;
    height: 14px;
}

/* 续费按钮样式 */
.btn-renew {
    padding: 6px 16px;
    background-color: #409EFF;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-renew:hover {
    background-color: #66b1ff;
    transform: translateY(-1px);
}

.btn-renew:active {
    transform: translateY(0);
}

/* 续费对话框样式 */
.renewal-info {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f5f7fa;
    border-radius: 4px;
}

.renewal-types-section {
    margin-top: 20px;
}

.renewal-types-section h3 {
    font-size: 16px;
    font-weight: 500;
    color: #303133;
    margin-bottom: 15px;
}

.renewal-types-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.renewal-type-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    background-color: #ffffff;
    border: 1px solid #DCDFE6;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.renewal-type-item:hover {
    border-color: #409EFF;
    box-shadow: 0 2px 8px rgba(64, 158, 255, 0.2);
}

.renewal-type-info {
    flex: 1;
}

.renewal-type-info h4 {
    font-size: 15px;
    font-weight: 500;
    color: #303133;
    margin: 0 0 5px 0;
}

.renewal-type-info p {
    font-size: 13px;
    color: #909399;
    margin: 0;
}

.renewal-type-price {
    font-size: 18px;
    font-weight: 600;
    color: #409EFF;
    margin: 0 20px;
    min-width: 80px;
    text-align: right;
}

.renewal-type-radio {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    cursor: pointer;
}

.renewal-type-radio input[type="radio"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.renewal-type-radio input[type="radio"]:checked + .renewal-type-info {
    color: #409EFF;
}

.renewal-type-name {
    font-size: 15px;
    font-weight: 500;
    color: #303133;
    display: block;
    margin-bottom: 5px;
}

.renewal-type-duration {
    font-size: 13px;
    color: #909399;
    display: block;
}

.btn-renew-select {
    padding: 8px 20px;
    background-color: #409EFF;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-renew-select:hover {
    background-color: #66b1ff;
    transform: translateY(-1px);
}

.btn-renew-select:active {
    transform: translateY(0);
}

.btn-renewal-confirm {
    margin-top: 20px;
    width: 100%;
    padding: 12px 24px;
    background-color: #409EFF;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-renewal-confirm:hover {
    background-color: #66b1ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(64, 158, 255, 0.3);
}

.btn-renewal-confirm:active {
    transform: translateY(0);
}

.btn-renewal-confirm:disabled {
    background-color: #C0C4CC;
    cursor: not-allowed;
    transform: none;
}

/* 钱包样式 */
.wallet-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.wallet-balance-card {
    background: linear-gradient(135deg, #409EFF 0%, #66b1ff 100%);
    border-radius: 12px;
    padding: 30px;
    color: #ffffff;
    text-align: center;
    box-shadow: 0 4px 12px rgba(64, 158, 255, 0.3);
}

.balance-label {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 10px;
    display: block;
}

.balance-amount {
    font-size: 36px;
    font-weight: 700;
    margin: 0;
}

.recharge-section {
    background-color: #ffffff;
    border: 1px solid #DCDFE6;
    border-radius: 8px;
    padding: 24px;
}

.recharge-title {
    font-size: 18px;
    font-weight: 600;
    color: #303133;
    margin: 0 0 20px 0;
}

.recharge-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 400px;
}

.balance-payment-option {
    margin: 20px 0;
    padding: 15px;
    background-color: #f5f7fa;
    border-radius: 8px;
    border: 1px solid #DCDFE6;
}

.balance-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.balance-label {
    font-size: 14px;
    color: #606266;
    font-weight: 500;
}

.balance-value {
    font-size: 18px;
    font-weight: 600;
    color: #409EFF;
}

.balance-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.balance-checkbox input[type="checkbox"] {
    margin-right: 8px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.balance-checkbox span {
    font-size: 14px;
    color: #606266;
}

.balance-checkbox input[type="checkbox"]:checked + span {
    color: #409EFF;
    font-weight: 500;
}

.balance-checkbox input[type="checkbox"]:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* 表单样式 */
.activate-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 500px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    color: #606266;
    font-weight: 500;
}

.form-input {
    padding: 10px 15px;
    border: 1px solid #DCDFE6;
    border-radius: 4px;
    font-size: 14px;
    color: #000000 !important;
    background-color: #ffffff !important;
    transition: border-color 0.3s;
    font-family: 'Courier New', monospace;
}

.form-input:focus {
    outline: none;
    border-color: #409EFF;
    color: #000000 !important;
    background-color: #ffffff !important;
}

.form-input::placeholder {
    color: #C0C4CC;
}

.btn-primary {
    padding: 10px 20px;
    background-color: #409EFF;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s;
    align-self: flex-start;
}

.btn-primary:hover {
    background-color: #66b1ff;
}

.btn-primary:active {
    background-color: #3a8ee6;
}

.btn-primary:disabled {
    background-color: #a0cfff;
    cursor: not-allowed;
}

/* 激活消息样式 */
.activate-message {
    margin-top: 16px;
    padding: 12px;
    border-radius: 4px;
    font-size: 14px;
}

.activate-message.success {
    background-color: #f0f9ff;
    color: #67C23A;
    border: 1px solid #b3e19d;
}

.activate-message.error {
    background-color: #fef0f0;
    color: #F56C6C;
    border: 1px solid #fbc4c4;
}

/* 加载和空状态 */
.loading-message,
.empty-message,
.error-message {
    text-align: center;
    padding: 40px 20px;
    color: #909399;
    font-size: 14px;
}

.error-message {
    color: #F56C6C;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .user-center-layout {
        flex-direction: column;
    }
    
    .user-center-sidebar {
        width: 100%;
        height: auto;
        flex-direction: row;
        overflow-x: auto;
        background: linear-gradient(90deg, #2c3e50 0%, #34495e 100%);
    }
    
    .sidebar-logo {
        width: 120px;
        flex-shrink: 0;
        height: 56px;
    }
    
    .sidebar-logo h3 {
        font-size: 16px;
    }
    
    .sidebar-menu {
        display: flex;
        flex-direction: row;
        flex: 1;
        padding: 8px 0;
    }
    
    .menu-item {
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
        margin: 0 4px;
        padding: 10px 16px;
        border-radius: 4px 4px 0 0;
    }
    
    .menu-item.active {
        border-left: none;
        border-bottom-color: #409EFF;
    }
    
    .menu-item.active::before {
        display: none;
    }
    
    .menu-icon {
        width: 16px;
        height: 16px;
        margin-right: 8px;
    }
    
    .menu-text {
        font-size: 13px;
    }
    
    .user-center-content {
        padding: 15px;
    }
    
    .section-card {
        padding: 15px;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}

.user-center-section .page-title {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 40px;
    text-align: center;
}

.user-info-card,
.orders-section,
.licenses-section,
.activate-license-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info-card h2,
.orders-section h2,
.licenses-section h2,
.activate-license-section h2 {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(14, 165, 233, 0.3);
}

.user-info-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-item {
    display: flex;
    align-items: center;
    color: #606266;
    font-size: 16px;
}

.info-label {
    font-weight: 600;
    min-width: 100px;
    color: #606266;
}

.info-value {
    color: #303133;
    font-weight: 500;
}

/* 订单列表样式 */
.orders-list,
.licenses-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.order-item,
.license-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.order-item:hover,
.license-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.order-header,
.license-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.order-id,
.license-key {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    font-family: 'Courier New', monospace;
}

.order-status,
.license-status {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
}

.status-success {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-pending {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.status-cancelled,
.status-expired {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-inactive {
    background: rgba(148, 163, 184, 0.2);
    color: #94a3b8;
    border: 1px solid rgba(148, 163, 184, 0.3);
}

.status-suspended {
    background: rgba(251, 146, 60, 0.2);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.3);
}

.order-content,
.license-content {
    color: #e2e8f0;
}

.order-info,
.license-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.order-info p,
.license-info p {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
}

.order-info strong,
.license-info strong {
    color: #94a3b8;
    margin-right: 8px;
}

/* 激活码激活区域 */
.activate-form {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.license-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid #DCDFE6;
    border-radius: 6px;
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 16px;
    font-family: 'Courier New', monospace;
}

.license-input::placeholder {
    color: #C0C4CC;
}

.license-input:focus {
    outline: none;
    border-color: #409EFF;
    background: #ffffff !important;
    color: #000000 !important;
}

.activate-message {
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    margin-top: 10px;
}

.activate-message.success {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.activate-message.error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.loading-message,
.empty-message,
.error-message {
    text-align: center;
    padding: 40px 20px;
    color: #94a3b8;
    font-size: 16px;
}

.error-message {
    color: #f87171;
}

/* 导航栏用户信息样式 */
.nav-user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: 20px;
}

.nav-user-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-user-link:hover {
    color: var(--primary-light);
}

.nav-user-email {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.nav-logout-btn {
    background-color: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 4px 16px;
    font-size: 14px;
}

.nav-logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.3);
    border-color: rgba(239, 68, 68, 0.5);
    color: #fca5a5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .user-center-section {
        padding: 100px 0 60px;
    }
    
    .user-center-section .page-title {
        font-size: 28px;
        margin-bottom: 30px;
    }
    
    .user-info-card,
    .orders-section,
    .licenses-section,
    .activate-license-section {
        padding: 20px;
        margin-bottom: 20px;
    }
    
    .activate-form {
        flex-direction: column;
    }
    
    .order-header,
    .license-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .nav-user-info {
        flex-direction: column;
        gap: 10px;
        margin-left: 0;
        width: 100%;
    }
    
    .nav-logout-btn {
        width: 100%;
    }
}

/* 产品详情模态框样式 */
.product-detail-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content-wrapper {
    position: relative;
    z-index: 10001;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    background: rgba(15, 23, 42, 0.95);
    border-radius: 16px;
    border: 1px solid rgba(14, 165, 233, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    padding: 30px;
    margin: 20px;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10002;
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
    transform: rotate(90deg);
}

.modal-content {
    color: #fff;
}

.product-detail-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.product-detail-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.product-category-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(14, 165, 233, 0.2);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
}

.product-detail-body {
    margin-top: 20px;
}

.product-detail-description {
    margin-bottom: 25px;
}

.product-detail-description h3 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
}

.product-detail-description p {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
}

.product-detail-price {
    margin-bottom: 30px;
    padding: 15px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.price-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-right: 10px;
}

.price-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.license-types-section {
    margin-top: 30px;
}

.license-types-section h4 {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.license-types-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.license-type-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.license-type-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.license-type-info {
    flex: 1;
}

.license-type-info h5 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 5px;
}

.license-type-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.license-type-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 20px;
    min-width: 100px;
    text-align: right;
}

.btn-buy {
    padding: 10px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-buy:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

.no-license-types {
    padding: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* 加载和错误消息样式 */
.loading-message,
.error-message,
.empty-message {
    padding: 40px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
}

.error-message {
    color: #ef4444;
}

/* 产品卡片中的价格和分类标签 */
.product-card .product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 10px 0;
}

.product-card .product-category-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 12px;
    font-size: 11px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content-wrapper {
        width: 95%;
        padding: 20px;
        margin: 10px;
    }

    .product-detail-header h2 {
        font-size: 22px;
    }

    .license-type-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .license-type-price {
        margin: 0;
        text-align: left;
    }

    .btn-buy {
        width: 100%;
    }
}

/* 支付相关样式 */
.btn-pay {
    padding: 6px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-pay:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.btn-pay:active {
    transform: translateY(0);
}

.text-muted {
    color: #999;
    font-size: 14px;
}

/* 支付模态框样式 */
.payment-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.payment-modal .modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.payment-modal .modal-content-wrapper {
    position: relative;
    z-index: 10001;
    max-width: 500px;
    width: 90%;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 0;
    margin: 20px;
    overflow: hidden;
}

.payment-modal .modal-content {
    padding: 30px;
    color: #333;
    position: relative;
}

.payment-modal .modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    border-radius: 50%;
    color: #666;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10002;
}

.payment-modal .modal-close:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    transform: rotate(90deg);
}

.payment-title {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin: 0 0 20px 0;
    text-align: center;
}

.payment-info {
    background: #f5f7fa;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
}

.order-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #e4e7ed;
}

.order-info-item:last-child {
    border-bottom: none;
}

.order-info-item .info-label {
    font-size: 14px;
    color: #606266;
}

.order-info-item .info-value {
    font-size: 14px;
    color: #303133;
    font-weight: 500;
}

.order-info-item .info-value.amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
}

.qrcode-container {
    text-align: center;
    margin-bottom: 25px;
}

.qrcode-wrapper {
    position: relative;
    display: inline-block;
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e4e7ed;
    margin-bottom: 15px;
}

.qrcode-image {
    width: 250px;
    height: 250px;
    display: none;
    border-radius: 4px;
}

.payment-tips {
    font-size: 14px;
    color: #909399;
    margin: 0;
}

.payment-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-confirm-payment {
    flex: 1;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-confirm-payment:hover:not(:disabled) {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

.btn-confirm-payment:disabled {
    background: #c0c4cc;
    cursor: not-allowed;
    transform: none;
}

.btn-cancel {
    padding: 12px 24px;
    background: #f5f7fa;
    color: #606266;
    border: 1px solid #dcdfe6;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-cancel:hover {
    background: #e4e7ed;
    border-color: #c0c4cc;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .payment-modal .modal-content-wrapper {
        width: 95%;
        padding: 0;
        margin: 10px;
    }

    .payment-modal .modal-content {
        padding: 20px;
    }

    .payment-title {
        font-size: 20px;
    }

    .qrcode-image {
        width: 200px;
        height: 200px;
    }

    .payment-actions {
        flex-direction: column;
    }

    .btn-confirm-payment,
    .btn-cancel {
        width: 100%;
    }
}

/* ============================================
   案例详情页样式
   ============================================ */

/* 详情页容器 */
.case-detail-section {
    padding: 100px 0 80px;
    min-height: 100vh;
    background-color: var(--darker-bg);
    position: relative;
    z-index: 1;
}

/* 返回按钮 */
.case-detail-back {
    margin-bottom: 40px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.back-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
}

.back-link:hover {
    color: #00bcd4;
    background: rgba(0, 188, 212, 0.1);
    border-color: rgba(0, 188, 212, 0.3);
    transform: translateX(-4px);
}

/* 加载状态 */
.case-detail-loading {
    text-align: center;
    padding: 80px 20px;
    color: rgba(255, 255, 255, 0.7);
}

.case-detail-loading .loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: #00bcd4;
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

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

.case-detail-loading p {
    font-size: 16px;
    margin: 0;
}

/* 错误状态 */
.case-detail-error {
    text-align: center;
    padding: 80px 20px;
    color: rgba(255, 255, 255, 0.7);
}

.case-detail-error p {
    font-size: 18px;
    margin-bottom: 20px;
}

/* 详情内容区域 */
.case-detail-content {
    max-width: 1200px;
    margin: 0 auto;
}

.case-detail-header {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.case-detail-header h1,
#case-detail-title {
    font-size: 24px !important;
    font-weight: 700;
    color: #fff;
    margin: 0 0 20px 0;
    line-height: 1.3;
}

.case-detail-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.case-category-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #00bcd4, #0097a7);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
}

.case-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.case-detail-description {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* 图片画廊 */
.case-images-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    aspect-ratio: 4 / 3;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 188, 212, 0.5);
}

.gallery-item-inner {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.gallery-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}

.gallery-item-overlay svg {
    width: 40px;
    height: 40px;
    color: #fff;
    stroke: currentColor;
    stroke-width: 2;
}

.gallery-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
}

/* 图片放大模态框 */
.image-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.lightbox-content {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

.lightbox-close svg,
.lightbox-prev svg,
.lightbox-next svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
}

.lightbox-close {
    top: 20px;
    right: 20px;
}

.lightbox-prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-prev:hover {
    transform: translateY(-50%) scale(1.1);
}

.lightbox-next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next:hover {
    transform: translateY(-50%) scale(1.1);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .case-images-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .case-detail-section {
        padding: 80px 0 60px;
    }

    .case-detail-header h1,
    #case-detail-title {
        font-size: 22px !important;
    }

    .case-detail-description {
        font-size: 16px;
    }

    .case-images-gallery {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .lightbox-close,
    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
    }

    .lightbox-close svg,
    .lightbox-prev svg,
    .lightbox-next svg {
        width: 20px;
        height: 20px;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }

    .gallery-item-overlay svg {
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 480px) {
    .case-detail-header h1,
    #case-detail-title {
        font-size: 20px !important;
    }

    .case-detail-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .back-link {
        font-size: 14px;
        padding: 6px 12px;
    }

    .back-link svg {
        width: 18px;
        height: 18px;
    }
}