/* 基础样式和重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-blue: #2a6eff;
    --secondary-blue: #e8f0fe;
    --dark-blue: #1a4fc4;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --text-dark: #333;
    --text-medium: #555;
    --text-light: #666;
    --white: #fff;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

html {
    scroll-behavior: smooth;
}

body {
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

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

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo i {
    font-size: 24px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-dark);
    position: relative;
    padding: 5px 0;
}

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

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 3px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-blue);
    color: var(--white);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background-color: var(--dark-blue);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-large {
    padding: 15px 40px;
    font-size: 16px;
}

/* 主内容区域样式 */
.main-content {
    padding: 60px 0;
    min-height: calc(100vh - 200px);
}

.content-wrapper {
    display: flex;
    align-items: center;
    gap: 50px;
}

.text-content {
    flex: 1;
}

.visual-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 标题样式 */
h1 {
    font-size: 42px;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.2;
}

h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.highlight {
    color: var(--primary-blue);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(42, 110, 255, 0.1);
    z-index: -1;
}

.subtitle {
    font-size: 20px;
    color: var(--text-medium);
    margin-bottom: 30px;
    max-width: 600px;
}

/* 功能特性列表 */
.features-list {
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 15px;
    border-radius: var(--border-radius);
    transition: all 0.3s;
}

.feature-item:hover {
    background-color: var(--light-gray);
    transform: translateX(5px);
}

.feature-icon {
    color: var(--primary-blue);
    font-size: 24px;
    margin-right: 20px;
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--secondary-blue);
    border-radius: 50%;
}

.feature-text h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.feature-text p {
    color: var(--text-light);
    font-size: 16px;
}

/* 设备展示区域 */
.device-showcase {
    position: relative;
    width: 100%;
    max-width: 550px;
    animation: float 6s ease-in-out infinite;
}

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

.laptop {
    position: relative;
    width: 100%;
    height: 320px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    border-radius: 20px 20px 0 0;
    box-shadow: var(--shadow-hover);
    overflow: hidden;
}

.laptop-screen {
    width: 92%;
    height: 82%;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 10px;
    position: absolute;
    top: 4%;
    left: 4%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.screen-content {
    padding: 25px;
    color: white;
    flex: 1;
}

.screen-content h4 {
    color: #4dabf7;
    font-size: 18px;
    margin-bottom: 10px;
}

.screen-content p {
    color: #a0a0c0;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 20px;
}

.stats {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.stat-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 15px;
    border-radius: 8px;
    text-align: center;
    flex: 1;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: #4dabf7;
    display: block;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 12px;
    color: #aaa;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 页脚样式 */
footer {
    background-color: #1a1a2e;
    color: #fff;
    padding: 60px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-blue);
}

.footer-section p {
    color: #b0b0d0;
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #b0b0d0;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: var(--primary-blue);
    transform: translateX(5px);
}

.footer-links i {
    font-size: 12px;
    color: var(--primary-blue);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    transition: all 0.3s;
}

.social-links a:hover {
    background-color: var(--primary-blue);
    transform: translateY(-5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright {
    color: #b0b0d0;
    font-size: 14px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: #b0b0d0;
    font-size: 14px;
}

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

/* 页面通用样式 */
.page-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.page-title h2 {
    font-size: 42px;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.page-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-blue);
    border-radius: 2px;
}

.page-title p {
    color: var(--text-medium);
    font-size: 18px;
    max-width: 700px;
    margin: 25px auto 0;
    line-height: 1.6;
}

.section {
    margin-bottom: 80px;
}

/* 卡片样式 */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    height: 100%;
}

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

.card-icon {
    font-size: 40px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: inline-block;
}

/* 网格布局 */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

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

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

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .content-wrapper {
        flex-direction: column;
        text-align: center;
    }
    
    .visual-content {
        order: -1;
    }
    
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 32px;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }
    
    h1 {
        font-size: 32px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
}