/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #00d4ff;
    --secondary-color: #00ff88;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --light-text: #ffffff;
    --gray-text: #b0b0b0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.08);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* 动画时间 */
    --transition-fast: 0.3s;
    --transition-normal: 0.5s;
    --transition-slow: 0.8s;
    
    /* 字体 */
    --font-main: 'Inter', sans-serif;
}

body {
    font-family: var(--font-main);
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal) ease;
}

.navbar.scrolled {
    background: rgba(5, 5, 8, 0.98);
    box-shadow: 0 2px 20px rgba(0, 212, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

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

.logo a {
    text-decoration: none;
    display: inline-block;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.nav-links ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast) ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-fast) ease;
}

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

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

.cta-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg) !important;
    padding: 0.8rem 2rem !important;
    border-radius: 50px;
    font-weight: 600;
    transition: all var(--transition-fast) ease;
    border: none;
    cursor: pointer;
    text-decoration: none !important;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

/* 确保CTA按钮没有下划线效果 */
.cta-btn::after {
    display: none !important;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    border-radius: 3px;
    transition: all var(--transition-fast) ease;
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    z-index: 1;
    margin-bottom: 0;
    padding: 60px 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%" fx="50%" fy="50%"><stop offset="0%" stop-color="%2300d4ff" stop-opacity="0.1"/><stop offset="100%" stop-color="%2300d4ff" stop-opacity="0"/></radialGradient><radialGradient id="b" cx="30%" cy="30%" r="40%" fx="30%" fy="30%"><stop offset="0%" stop-color="%2300ff88" stop-opacity="0.1"/><stop offset="100%" stop-color="%2300ff88" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="300" r="150" fill="url(%23a)"/><circle cx="800" cy="200" r="200" fill="url(%23b)"/><circle cx="700" cy="700" r="180" fill="url(%23a)"/><circle cx="300" cy="800" r="120" fill="url(%23b)"/></svg>') no-repeat center center;
    background-size: cover;
    animation: float 20s ease-in-out infinite;
    z-index: -1;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    width: 100%;
    z-index: 1;
}

.hero .container {
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    text-align: center;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-text);
    text-align: center;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-highlights {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin: 2rem 0;
    padding: 0 1rem;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    min-width: 100px;
}

.highlight-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    background: rgba(0, 212, 255, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast) ease;
}

.highlight-item:hover i {
    transform: scale(1.1);
    background: rgba(0, 212, 255, 0.2);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

.highlight-item span {
    font-size: 0.95rem;
    color: var(--gray-text);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast) ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

/* 章节通用样式 */
section {
    padding: 4rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--light-text);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto;
}

/* 核心服务 */
.services {
    background: var(--dark-bg);
    padding: 3rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--card-bg);
    padding: 1.75rem 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal) ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.05), transparent);
    transition: left var(--transition-slow) ease;
}

.service-card:hover {
    background: var(--card-hover);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.service-card:hover::before {
    left: 100%;
}

.service-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
    color: var(--dark-bg);
}

.service-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--light-text);
}

.service-description {
    color: var(--gray-text);
    margin-bottom: 1.25rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast) ease;
    font-size: 0.95rem;
}

.service-link:hover {
    color: var(--secondary-color);
    gap: 0.75rem;
}

/* 技术优势 */
.advantages {
    background: var(--darker-bg);
}

.advantages-content {
    margin-top: 3rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.advantage-item {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal) ease;
    position: relative;
}

.advantage-item:hover {
    background: var(--card-hover);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(0, 212, 255, 0.1);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    line-height: 1;
}

.advantage-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.advantage-description {
    color: var(--gray-text);
    line-height: 1.6;
}

/* 成功案例 */
.cases {
    background: var(--dark-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal) ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.case-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: rgba(0, 212, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow) ease;
}

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

.case-content {
    padding: 2rem;
}

.case-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.case-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--gray-text);
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-description {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.case-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast) ease;
}

.case-link:hover {
    color: var(--secondary-color);
    gap: 0.75rem;
}

/* 解决方案 */
.solutions {
    background: linear-gradient(135deg, var(--darker-bg) 0%, rgba(0, 212, 255, 0.02) 100%);
    position: relative;
    padding: 3rem 0 2rem;
}

/* 添加背景装饰 */
.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

/* 独特的网格布局 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    position: relative;
}

/* 解决方案卡片 - 独特设计 */
.solution-card {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* 卡片背景渐变效果 */
.solution-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform var(--transition-normal) ease;
    transform-origin: left;
}

.solution-card:hover::after {
    transform: scaleX(1);
}

/* 悬停效果 - 不同于核心服务 */
.solution-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
    background: rgba(10, 10, 15, 0.9);
}

/* 卡片头部 - 更大的内边距和不同的布局 */
.solution-card-header {
    padding: 1.25rem 1.5rem 0.75rem;
    text-align: left;
}

/* 图标样式 - 更大更突出 */
.solution-card-icon {
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, var(--primary-color), var(--secondary-color));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--dark-bg);
    margin: 0 0 0.75rem;
    box-shadow: 0 3px 10px rgba(0, 212, 255, 0.2);
    transition: all var(--transition-normal) ease;
}

.solution-card:hover .solution-card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

/* 标题样式 - 更大更粗 */
.solution-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--light-text);
    line-height: 1.3;
}

/* 描述文字 - 居中对齐 */
.solution-card-description {
    color: var(--gray-text);
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.8rem;
    text-align: left;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 特性列表 - 不同的样式 */
.solution-card-features {
    list-style: none;
    padding: 0 1.5rem 1rem;
    margin: 0;
    flex-grow: 1;
}

.solution-card-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    color: var(--gray-text);
    font-size: 0.8rem;
    line-height: 1.4;
    padding: 0.375rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.solution-card-features li:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

/* 特性图标 - 更大更突出 */
.solution-card-features i {
    color: var(--secondary-color);
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
    transition: all var(--transition-fast) ease;
}

.solution-card:hover .solution-card-features i {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* 卡片底部 */
.solution-card-footer {
    padding: 0 1.5rem 1rem;
    text-align: left;
    margin-top: auto;
}

/* 链接样式 - 按钮式设计 */
.solution-card-link {
    display: inline-block;
    padding: 0.6rem 1.25rem;
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    border-radius: 30px;
    transition: all var(--transition-normal) ease;
    font-size: 0.8rem;
    position: relative;
    overflow: hidden;
}

/* 链接悬停效果 - 渐变背景 */
.solution-card-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left var(--transition-slow) ease;
}

.solution-card-link:hover::before {
    left: 100%;
}

.solution-card-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
    border-color: transparent;
}

/* 关于我们 */
.about {
    background: var(--dark-bg);
    position: relative;
}

/* 左右布局内容容器 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: flex-start;
    margin-top: 2rem;
}

/* 左侧内容 */
.about-left {
    padding-right: 1rem;
}

/* 右侧内容 */
.about-right {
    padding-left: 1rem;
}

/* 标题样式 */
.about-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    position: relative;
    display: inline-block;
    text-align: left;
}

/* 标题装饰 */
.about-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    transform: none;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* 描述文字 */
.about-description {
    color: var(--gray-text);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    font-size: 1.1rem;
    text-align: left;
}

/* 核心优势 */
.about-advantages {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
}

/* 优势项样式 */
.about-advantage-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal) ease;
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.about-advantage-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

/* 优势图标 */
.about-advantage-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    font-size: 1.25rem;
    color: var(--dark-bg);
    transition: all var(--transition-normal) ease;
    flex-shrink: 0;
}

.about-advantage-item:hover .about-advantage-icon {
    transform: scale(1.1) rotate(5deg);
}

/* 优势内容 */
.about-advantage-content {
    flex-grow: 1;
}

/* 优势标题 */
.about-advantage-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

/* 优势描述 */
.about-advantage-description {
    color: var(--gray-text);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* 统计数据 */
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 2.4rem;
    background: var(--darker-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
}

/* 统计项样式 */
.stat-item {
    text-align: center;
    padding: 0.75rem;
    transition: all var(--transition-fast) ease;
}

.stat-item:hover {
    transform: translateY(-2px);
}

/* 统计图标 */
.stat-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.5rem;
    font-size: 1rem;
    color: var(--primary-color);
    transition: all var(--transition-normal) ease;
}

.stat-item:hover .stat-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg);
    transform: scale(1.05);
}

/* 统计数字 */
.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    line-height: 1;
    margin-bottom: 0.375rem;
}

/* 统计标签 */
.stat-label {
    font-size: 0.8rem;
    color: var(--gray-text);
    display: block;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-left,
    .about-right {
        padding: 0;
    }
    
    .about-advantages {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .about-advantage-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .about-advantage-icon {
        margin-bottom: 1rem;
    }
    
    .about-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

/* 联系我们 */
.contact {
    background: var(--darker-bg);
}

.contact-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin: 0 auto;
}

/* 联系信息卡片容器 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

/* 联系信息卡片 */
.contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal) ease;
    text-align: center;
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.15);
}

/* 卡片图标 */
.contact-card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--dark-bg);
    transition: all var(--transition-normal) ease;
}

.contact-card:hover .contact-card-icon {
    transform: scale(1.1) rotate(5deg);
}

/* 卡片标题 */
.contact-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--light-text);
}

/* 卡片文本 */
.contact-card-text {
    color: var(--gray-text);
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
}

/* 社交媒体容器 */
.contact-social {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    margin-top: 1rem;
}

/* 社交媒体标题 */
.contact-social-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

/* 社交媒体链接容器 */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* 社交媒体链接 */
.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--light-text);
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-fast) ease;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
    border-color: transparent;
}

/* 社交媒体图标 */
.social-link i {
    font-size: 1.25rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
    }
    
    .social-link {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* 页脚 */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

/* 页脚公司信息 */
.footer-logo {
    max-width: 300px;
}

.footer-logo a {
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-fast) ease;
}

.footer-logo a:hover .logo-text {
    opacity: 0.8;
}

.footer-description {
    color: var(--gray-text);
    margin-top: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 页脚标题 */
.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    position: relative;
    padding-bottom: 0.75rem;
}

/* 标题装饰 */
.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 1px;
}

/* 页脚链接列表 */
.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
    position: relative;
}

/* 页脚链接 */
.footer-links a {
    color: var(--gray-text);
    text-decoration: none;
    transition: all var(--transition-fast) ease;
    display: inline-block;
    font-size: 0.95rem;
    padding-left: 0;
}

/* 链接悬停效果 */
.footer-links a:hover {
    color: var(--primary-color);
}

/* 页脚联系信息 */
.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--gray-text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 25px;
    text-align: center;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-top: 0;
}

/* 备案信息容器 */
.footer-bottom-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
}

/* 备案链接 */
.footer-bottom a {
    color: var(--gray-text);
    text-decoration: none;
    transition: all var(--transition-fast) ease;
    font-size: 0.85rem;
}

/* 链接悬停效果 */
.footer-bottom a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* 版权信息 */
.footer-copyright {
    margin: 0;
    font-size: 0.85rem;
    opacity: 0.9;
}

/* 分隔符 */
.footer-copyright:not(:last-child)::after {
    content: '|';
    margin: 0 1rem;
    color: var(--border-color);
    opacity: 0.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 1rem;
        padding: 0.5rem 0;
    }
    
    .footer-copyright:not(:last-child)::after {
        content: none;
        margin: 0;
    }
    
    .footer-logo {
        max-width: 100%;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 0.75rem;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-slow) ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.scale-in {
    opacity: 1;
    transform: scale(1);
    transition: all var(--transition-slow) ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

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

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 212, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 响应式基础设置 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}