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

:root {
    --primary-blue: #00d4ff;
    --primary-purple: #7b68ee;
    --secondary-blue: #0099cc;
    --secondary-purple: #6a5acd;
    --bg-white: #ffffff;
    --bg-light: #f8f9ff;
    --bg-dark: #1a1a2e;
    --text-primary: #1a1a2e;
    --text-secondary: #666666;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-blue), var(--secondary-purple));
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.9), rgba(123, 104, 238, 0.9));
    backdrop-filter: blur(10px);
    color: #fff;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo a {
    color: #fff;
    text-decoration: none;
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, #00d4ff, #ff00ff, #7b68ee, #00d4ff);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
    animation: gradientShift 3s ease-in-out infinite;
}

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

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

/* Hero区域 */
.hero {
    background: var(--gradient-secondary);
    color: #fff;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 212, 255, 0.2) 0%, transparent 50%);
    z-index: 1;
}

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

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease forwards;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

/* 产品概览 */
.product-overview {
    padding: 100px 0;
    background-color: var(--bg-white);
    position: relative;
}

.product-overview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, var(--bg-light), var(--bg-white));
}

.product-overview h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.product-overview h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.product-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.product-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.product-card:hover::before {
    transform: scaleX(1);
}

.product-icon {
    font-size: 48px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

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

.product-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.product-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 全球服务网络 */
.global-network {
    background-color: var(--bg-light);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.global-network::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(123, 104, 238, 0.05) 0%, transparent 50%);
    z-index: 1;
}

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

.network-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 30px 20px;
    background-color: var(--bg-white);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 技术优势 */
.tech-advantages {
    padding: 100px 0;
    background-color: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.tech-advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(123, 104, 238, 0.05) 0%, transparent 50%);
    z-index: 1;
}

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

.tech-advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.tech-advantages h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.advantage-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.advantage-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.advantage-icon {
    font-size: 48px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

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

.advantage-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 行业解决方案 */
.solutions {
    padding: 100px 0;
    background-color: var(--bg-light);
    position: relative;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, var(--bg-white), var(--bg-light));
}

.solutions h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.solutions h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.solution-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

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

.solution-icon {
    font-size: 36px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

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

.solution-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.solution-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 客户案例 */
.case-studies {
    padding: 100px 0;
    background-color: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.case-studies::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 40% 40%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(123, 104, 238, 0.05) 0%, transparent 50%);
    z-index: 1;
}

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

.case-studies h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.case-studies h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.case-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.case-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.case-card:hover::before {
    transform: scaleX(1);
}

.case-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.case-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    z-index: 1;
}

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

.page-header h1 {
    font-size: 36px;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* 产品页面 */
.products {
    padding: 80px 0;
    background-color: #fff;
}

.product-category {
    margin-bottom: 80px;
}

.product-category h2 {
    font-size: 30px;
    margin-bottom: 40px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 10px;
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.product-item {
    display: flex;
    gap: 40px;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 104, 238, 0.05));
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.product-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.product-image {
    flex: 0 0 300px;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(123, 104, 238, 0.3) 0%, transparent 50%),
        linear-gradient(135deg, #0a0a1a, #1a1a2e);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 0 20px rgba(0, 212, 255, 0.3),
        0 2px 10px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 212, 255, 0.3);
    position: relative;
    overflow: hidden;
}

/* 赛博科技风格网格背景 */
.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    z-index: 1;
}

.product-image img {
    max-width: 90%;
    max-height: 180px;
    object-fit: contain;
    border-radius: 15px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    margin: 0 auto;
}

.product-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* 默认图片样式 - 卡通赛博科技风格 */
.product-image::before {
    content: attr(data-gpu);
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-blue);
    background: linear-gradient(135deg, #00d4ff, #7b68ee, #ff00ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
    position: relative;
    z-index: 2;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 40px 20px;
    text-align: center;
}

/* 添加GPU图标 */
.product-image::before {
    content: attr(data-gpu);
}

/* RTX系列特殊样式 */
.product-image[data-gpu^="RTX"]::before {
    content: "🔶 " attr(data-gpu) " 🔶";
}

/* A系列特殊样式 */
.product-image[data-gpu^="A"]::before {
    content: "⚡ " attr(data-gpu) " ⚡";
}

/* H系列特殊样式 */
.product-image[data-gpu^="H"]::before {
    content: "💎 " attr(data-gpu) " 💎";
}

/* 当图片不存在时显示默认样式 */
.product-image img[src$=".png"]:not([src*="/"]),
.product-image img[src$=".jpg"]:not([src*="/"]) {
    display: none;
}

.product-image img[src$=".png"]:not([src*="/"]) + .product-image::before,
.product-image img[src$=".jpg"]:not([src*="/"]) + .product-image::before {
    display: flex;
}

/* 悬停效果增强 */
.product-image:hover {
    box-shadow: 
        0 0 30px rgba(0, 212, 255, 0.5),
        0 2px 15px rgba(0, 0, 0, 0.7);
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

.product-image:hover::before {
    animation: cyberPulse 2s ease-in-out infinite;
}

@keyframes cyberPulse {
    0%, 100% {
        text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
    }
    50% {
        text-shadow: 0 0 20px rgba(0, 212, 255, 1), 0 0 30px rgba(123, 104, 238, 0.8);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.product-info {
    flex: 1;
}

.product-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background-color: #f0f0f0;
    border-radius: 5px;
}

.spec-label {
    font-weight: bold;
    color: #1a1a1a;
}

.spec-value {
    color: #666;
}

.product-desc {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

/* 联系页面 */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 104, 238, 0.05));
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 30px;
    margin-bottom: 40px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.contact-icon {
    font-size: 30px;
    color: var(--primary-blue);
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.contact-details h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.contact-form h2 {
    font-size: 30px;
    margin-bottom: 20px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-form p {
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.contact-form {
    background: rgba(255, 255, 255, 0.8);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* 常见问题 */
.faq {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 104, 238, 0.05));
    position: relative;
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.faq h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.8);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--gradient-primary);
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.faq-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-primary);
    padding-left: 15px;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 15px;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, rgba(0, 153, 204, 0.95), rgba(106, 90, 205, 0.95));
    color: #fff;
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(123, 104, 238, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.footer-logo h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--primary-blue);
    background: linear-gradient(135deg, #00d4ff, #ff00ff, #7b68ee, #00d4ff);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
    animation: gradientShift 3s ease-in-out infinite;
}

.footer-logo p {
    color: #ccc;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 10px;
}

.footer-links a::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-blue);
    padding-left: 15px;
}

.footer-links a:hover::before {
    opacity: 1;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #ccc;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.footer-contact p:hover {
    color: var(--primary-blue);
}

.footer-contact i {
    color: var(--primary-blue);
    transition: all 0.3s ease;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
    position: relative;
    z-index: 2;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 20px;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .nav-links li {
        margin-left: 0;
    }

    .hero h1 {
        font-size: 36px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .product-item {
        flex-direction: column;
        text-align: center;
    }

    .product-image {
        flex: 0 0 200px;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .product-specs {
        grid-template-columns: 1fr;
    }

    .spec-item {
        flex-direction: column;
        text-align: center;
        gap: 5px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .product-overview h2,
    .features h2,
    .page-header h1 {
        font-size: 28px;
    }

    .product-card,
    .feature-card {
        padding: 30px 20px;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }

    .contact-icon {
        margin: 0 auto;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@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 gradientFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.product-card,
.feature-card,
.advantage-card,
.solution-card,
.case-card,
.product-item,
.contact-item {
    animation: fadeIn 0.6s ease forwards;
}

.product-card:nth-child(1),
.feature-card:nth-child(1),
.advantage-card:nth-child(1),
.solution-card:nth-child(1),
.case-card:nth-child(1),
.product-item:nth-child(1),
.contact-item:nth-child(1) {
    animation-delay: 0.1s;
}

.product-card:nth-child(2),
.feature-card:nth-child(2),
.advantage-card:nth-child(2),
.solution-card:nth-child(2),
.case-card:nth-child(2),
.product-item:nth-child(2),
.contact-item:nth-child(2) {
    animation-delay: 0.2s;
}

.product-card:nth-child(3),
.feature-card:nth-child(3),
.advantage-card:nth-child(3),
.solution-card:nth-child(3),
.case-card:nth-child(3),
.product-item:nth-child(3),
.contact-item:nth-child(3) {
    animation-delay: 0.3s;
}

.product-card:nth-child(4),
.feature-card:nth-child(4),
.solution-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* 渐变动画 */
.btn-primary,
.stat-number,
.footer-logo h3 {
    background-size: 200% 200%;
    animation: gradientFlow 3s ease infinite;
}