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

:root {
    --primary-color: #0070F7;
    --secondary-color: #42a5f5;
    --accent-color: #E58803;
    --bg-default: #0070F7;
    --dark-bg: #0a192f;
    --light-bg: #FFF;
    --light-bg-secondary: #F6F9FC;
    --text-dark: #0a2540;
    --text-dark-secondary: #64748b;
    --text-light-secondary: #757575;
    --text-light: #ffffff;
    --transition: all 0.3s ease;
}

html {
    height: 100%;
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* 导航栏样式 */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    z-index: 1000;
    transition: var(--transition);
}

.site-nav.scrolled {
    background-color: rgba(0, 112, 247, 0.95);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    padding: 15px 50px;
}

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

.logo-img {
    height: 42px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
}

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

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

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

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

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

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

.hamburger {
    display: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-light);
    transition: var(--transition);
}

/* 主容器样式 */
.main {
    display: flex;
    flex-direction: column;
    background-color: var(--light-bg);
}

section {
    width: 100%;
}

/* 视差部分样式 */
.parallax-section {
    min-height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* 英雄区块 */
.hero {
    background-color: var(--dark-bg);
    position: relative;
}

.hero::before {
    background: linear-gradient(135deg, rgba(30, 136, 229, 0.8), rgba(10, 25, 47, 0.9));
}

.hero .content {
    position: relative;
    z-index: 2;
    flex-direction: column;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto 0 12%;
    padding: 0 20px;
    text-align: left;
}

.hero-text {
    margin-bottom: 60px;
}
.hero-text .highlight {
    display: inline-block;
    color: var(--text-light);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .hero .content {
        margin: 0 auto;
        text-align: center;
    }
    
    .hero-text {
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .hero .content {
        padding: 0 15px;
    }
    
    .hero-text {
        margin-bottom: 20px;
    }
    
    .hero-text .highlight {
        mask-size: 800%;
        animation-duration: 6s;
    }
}

@keyframes knockoutReveal {
    0% {
        background-position-y: 0;
    }
    100% {
        background-position-y: 100%;
    }
}

.animated-text {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.highlight {
    color: var(--accent-color);
    position: relative;
}

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 40px;
    max-width: 800px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

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

.btn-secondary:hover {
    background-color: var(--text-light);
    color: var(--dark-bg);
}

/* 统计数据 */
.stats-container {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    width: 100%;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-light);
    border-radius: 13px;
    margin: 0 auto 10px;
    position: relative;
}

.mouse::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 8px;
    background-color: var(--text-light);
    left: 50%;
    top: 8px;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* 内容部分 */
.content-section {
    padding: 100px 0;
    background: var(--light-bg);
    color: var(--text-dark);
}

.content-section.services {
    min-height: 75vh;
    background-color: var(--light-bg);
    color: var(--text-dark);
}

.content-section.tech {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

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

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
}

.section-subtitle {
    font-size: .99rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    color: #64748b;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-dark-secondary);
    margin-bottom: 25px;
}

.feature-list {
    list-style: none;
    text-align: left;
}

.feature-list li {
    margin-bottom: 10px;
    color: var(--text-dark-secondary);
    position: relative;
    padding-left: 25px;
}

.feature-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* 解决方案 */
.solutions {
    background-color: var(--light-bg);
    color: var(--text-dark);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.solution-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    background-color: rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.solution-item:hover {
    transform: translateY(-10px);
}

.solution-image {
    height: 240px;
    background-size: cover;
    background-position: center;
}

.solution-content {
    padding: 30px;
}

.solution-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.solution-content p {
    color: var(--text-dark-secondary);
    margin-bottom: 25px;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 8px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

/* 全球覆盖 */
.global-coverage {
    background-color: var(--light-bg);
    min-height: 100vh;
    padding: 100px 0 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.global-coverage .container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    position: absolute;
    bottom: 8vh;
}

.global-coverage h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 42vh;
}

/* 网络统计卡片网格 */
.network-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
}

/* 网络统计卡片样式 */
.network-stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    padding: 32px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 悬停效果 */
.network-stat-card:hover {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.95), rgba(0, 86, 179, 0.95));
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 123, 255, 0.3);
    border-color: rgba(0, 123, 255, 0.5);
}

.network-stat-card:hover .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    transform: scale(1.1);
}

.network-stat-card:hover .stat-number {
    color: #ffffff;
}

.network-stat-card:hover .stat-label {
    color: rgba(255, 255, 255, 0.9);
}

/* 卡片装饰背景 */
.network-stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 0%, rgba(0, 123, 255, 0.05) 100%);
    transform: rotate(15deg);
    transition: opacity 0.4s ease;
    opacity: 0;
    pointer-events: none;
}

.network-stat-card:hover::before {
    opacity: 1;
}

/* 统计图标样式 */
.network-stat-card .stat-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.1), rgba(0, 86, 179, 0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #007bff;
    font-size: 24px;
    transition: all 0.4s ease;
    flex-shrink: 0;
}

/* 统计信息容器 */
.network-stat-card .stat-info {
    flex: 1;
    min-width: 0;
}

/* 统计数字样式 */
.network-stat-card .stat-number {
    font-size: 32px;
    font-weight: 800;
    color: #1a1a1a;
    line-height: 1.2;
    margin-bottom: 4px;
    transition: color 0.4s ease;
}

/* 统计标签样式 */
.network-stat-card .stat-label {
    font-size: 14px;
    color: #666666;
    line-height: 1.4;
    font-weight: 500;
    transition: color 0.4s ease;
}

/* 地球视频容器 */
.globe-animation {
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.globe-animation video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

/* 移动端隐藏地球视频 */
@media (max-width: 768px) {
    .globe-animation {
        display: none;
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .network-stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .network-stat-card {
        padding: 24px 20px;
        gap: 16px;
    }
    
    .stat-icon {
        width: 56px;
        height: 56px;
        font-size: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .network-stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 16px;
        padding: 0 16px;
    }
    
    .network-stat-card {
        padding: 20px 16px;
        gap: 12px;
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 18px;
        border-radius: 12px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 13px;
    }
    
    .global-coverage h2 {
        font-size: 28px;
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .network-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .network-stat-card {
        flex-direction: column;
        text-align: center;
        padding: 24px 16px;
    }

    .stat-item {
        text-shadow: 2px 2px 15px rgba(0, 0, 0, 0.5);
    }
    
    .stat-info {
        margin-top: 8px;
    }
}

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

.network-stat-card {
    animation: fadeInUp 0.8s ease forwards;
}

.network-stat-card:nth-child(1) { animation-delay: 0.1s; }
.network-stat-card:nth-child(2) { animation-delay: 0.2s; }
.network-stat-card:nth-child(3) { animation-delay: 0.3s; }  
.network-stat-card:nth-child(4) { animation-delay: 0.4s; }
.network-stat-card:nth-child(5) { animation-delay: 0.5s; }
.network-stat-card:nth-child(6) { animation-delay: 0.6s; }

/* 滚动视差效果 */
.global-coverage {
    background-attachment: fixed;
}

/* 确保 FontAwesome 图标正确显示 */
.network-stat-card .fas {
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
}



/* 3D场景容器 */
#cube-container {
    width: 100%;
    height: 100vh;
    position: absolute;
    overflow: hidden;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .site-nav {
        padding: 20px 30px;
    }
    .site-nav.scrolled {
        padding: 15px 30px;
    }
    .animated-text {
        font-size: 3.5rem;
    }
    .stats-container {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hero {
        background: var(--bg-default);
    }
    .cta-buttons {
        display: none;
    }
    .site-nav {
        padding: 20px;
    }
    .site-nav.scrolled {
        padding: 15px 20px;
    }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 80%;
        max-width: 400px;
        background-color: var(--dark-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
    }
    .nav-links.active {
        right: 0;
    }
    .nav-links li {
        margin: 15px 0;
    }
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    .hamburger.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    .animated-text {
        font-size: 2.8rem;
    }
    .subtitle {
        font-size: 1.2rem;
    }
    .stats-container {
        flex-direction: column;
        margin-top: 20px;
        gap: 40px;
    }
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    .footer-logo {
        flex: 0 0 100%;
    }
    .footer-links {
        width: 100%;
        justify-content: space-between;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.5rem;
    }
    h2 {
        font-size: 2rem;
    }
    .animated-text {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .btn {
        width: 100%;
        text-align: center;
    }
    .content-section {
        padding: 60px 0;
    }
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    .footer-links {
        flex-direction: column;
    }
}

/* 技术特点区域样式 */
.tech {
    padding: 0px 0 80px;
    position: relative;
    overflow: hidden;
    background: var(--light-bg-secondary);
}

.tech h2 {
    color: var(--text-dark);
}

.tech .tech-intro {
    color: var(--text-dark-secondary);
    font-size: .99rem;
}

.tech-features-container {
    display: flex;
    gap: 15px;
    margin-top: 60px;
    height: 500px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.tech-feature {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    transition: flex 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    flex-shrink: 0;
}

/* 明确的状态定义 - 强制覆盖 */
.tech-feature.expanded {
    flex: 0 0 600px !important;
    width: 600px !important;
}

.tech-feature.collapsed {
    flex: 0 0 150px !important;
    width: 150px !important;
}

/* 内容显示控制 */
.tech-feature .tech-summary {
    opacity: 1;
    transition: opacity 0.3s ease;
    display: block;
}

.tech-feature .tech-detail {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease 0.1s;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    pointer-events: none;
    text-align: left;
    min-width: 540px
}

/* 展开状态的内容控制 */
.tech-feature.expanded .tech-summary {
    opacity: 0 !important;
    pointer-events: none;
}

.tech-feature.expanded .tech-detail {
    opacity: 1 !important;
    transform: translateY(0) !important;
    pointer-events: auto;
    position: relative;
}

/* 收缩状态的内容控制 */
.tech-feature.collapsed .tech-summary {
    opacity: 1 !important;
    pointer-events: auto;
}

.tech-feature.collapsed .tech-detail {
    opacity: 0 !important;
    transform: translateY(20px) !important;
    pointer-events: none;
    position: absolute;
}
.tech-feature-bg {
    position: absolute;
    z-index: 1;
    height: 100%;
    width: 100%;
}
/* 内容区域基础样式 */
.tech-feature-content {
    position: relative;
    padding: 40px 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
    z-index: 2;
    background: linear-gradient(180deg, rgba(41, 23, 177, 0.467), rgba(255, 255, 255, 0));
}

/* 收缩状态的特殊布局 */
.tech-feature.collapsed .tech-feature-content {
    justify-content: flex-start;
    text-align: center;
    padding: 20px 15px;
}

.tech-feature.collapsed .tech-icon {
    width: 40px !important;
    height: 40px !important;
    margin-bottom: 12px;
}

.tech-feature.collapsed .tech-icon i {
    font-size: 18px !important;
}

.tech-feature.collapsed .tech-title {
    font-size: 16px !important;
    margin-bottom: 8px;
}

.tech-feature.collapsed .tech-summary {
    font-size: 12px !important;
    line-height: 1.4;
}

/* 展开状态的样式 */
.tech-feature.expanded .tech-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.tech-feature.expanded .tech-icon i {
    font-size: 24px;
}

.tech-feature.expanded .tech-title {
    font-size: 24px;
    margin-bottom: 16px;
}

/* 过渡动画优化 */
.tech-feature * {
    transition: all 0.3s ease;
}

.tech-feature {
    box-sizing: border-box;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .tech-feature.expanded {
        flex: 0 0 55% !important;
        width: 55% !important;
    }
    
    .tech-feature.collapsed {
        flex: 0 0 20% !important;
        width: 20% !important;
    }
    
    .tech-features-container:not(:hover) .tech-feature:first-child {
        flex: 0 0 55% !important;
        width: 55% !important;
    }
    
    .tech-features-container:not(:hover) .tech-feature:not(:first-child) {
        flex: 0 0 20% !important;
        width: 20% !important;
    }
}

@media (max-width: 768px) {
    .tech-features-container {
        flex-direction: column;
        height: auto;
        gap: 15px;
    }
    
    .tech-feature.expanded {
        flex: 0 0 100% !important;
        width: 100% !important;
    }
    
    .tech-feature.collapsed {
        flex: 0 0 100% !important;
        width: 100% !important;
    }
    
    .tech-features-container:not(:hover) .tech-feature:first-child {
        flex: 0 0 100% !important;
        width: 100% !important;
    }
    
    .tech-features-container:not(:hover) .tech-feature:not(:first-child) {
        flex: 0 0 100% !important;
        width: 100% !important;
    }
    
    .tech-feature-content {
        padding: 20px;
    }
    
    .tech-feature.collapsed .tech-feature-content {
        padding: 15px;
        justify-content: center;
    }
    
    .tech-feature.collapsed .tech-icon {
        width: 32px !important;
        height: 32px !important;
        margin-bottom: 8px;
    }
    
    .tech-feature.collapsed .tech-icon i {
        font-size: 14px !important;
    }
    
    .tech-feature.collapsed .tech-title {
        font-size: 14px !important;
        margin-bottom: 6px;
    }
    
    .tech-feature.collapsed .tech-summary {
        font-size: 11px !important;
        line-height: 1.3;
    }
    
    .tech-feature.expanded .tech-detail {
        min-width: auto;
        padding: 20px;
    }
    
    .tech-feature.expanded .tech-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 15px;
    }
    
    .tech-feature.expanded .tech-icon i {
        font-size: 20px;
    }
    
    .tech-feature.expanded .tech-title {
        font-size: 20px;
        margin-bottom: 12px;
    }
}


/* 合作伙伴轮播样式 */
.partners {
    padding: 80px 0 120px;
    background: var(--light-bg);
    overflow: hidden;
    min-height: 36vh;
}

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

.partners h2 {
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 20px;
    font-size: 2.5rem;
    font-weight: 600;
}

.partners .section-subtitle {
    color: #b3b3b3;
    text-align: center;
    margin-bottom: 60px;
    font-size: 1.1rem;
}

.partners-logos {
    width: calc(100% - 450px);
    height: 76px;
    overflow: hidden;
    margin: 0 auto 40px;
    position: relative;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.partners-logos:last-child {
    margin-bottom: 0;
}

.partners-logos img {
    height: 76px;
    transition: all 0.3s ease;
    margin-right: 25px;
    flex-shrink: 0;
    animation: partners_scroll 40s linear infinite reverse;
}

.carousel-right img {
    animation: partners_scroll 40s linear infinite!important;
}

/* 渐变遮罩效果 */
.partners-logos::before,
.partners-logos::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.partners-logos::before {
    left: 0;
    background: linear-gradient(to right, 
        rgba(255, 255, 255, 1) 0%, 
        rgba(255, 255, 255, 0.8) 50%, 
        rgba(255, 255, 255, 0) 100%);
}

.partners-logos::after {
    right: 0;
    background: linear-gradient(to left, 
        rgba(255, 255, 255, 1) 0%, 
        rgba(255, 255, 255, 0.8) 50%, 
        rgba(255, 255, 255, 0) 100%);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .partners-logos {
        height: 80px;
        margin-bottom: 30px;
    }
    
    .partners-logos img {
        height: 77px;
        margin-right: 40px;
    }
    
    .partners h2 {
        font-size: 2rem;
    }
    
    .partners .section-subtitle {
        font-size: 1rem;
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .partners-logos {
        width: calc(100% - 30px);
        height: 60px;
        margin-bottom: 20px;
    }
    
    .partners-logos img {
        height: 77px;
        margin-right: 30px;
    }
    
    .partners {
        padding: 60px 0;
    }
    
    .partners-logos::before,
    .partners-logos::after {
        width: 60px;
    }
}

@keyframes partners_scroll {
    0% {
    transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 25px));
    }
}

/* 联系我们部分扩展样式 */
.contact {
    background: var(--light-bg);
    position: relative;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact .content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 20px 40px;
}

/* 标语部分 */
.slogan-section {
    text-align: center;
    margin: 0 0 60px;
    padding: 30px;
    background: url(./images/footer-banner-bg.png) no-repeat center center;
    background-size: cover;
    max-width: 100%;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.slogan-title {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.slogan-title::after {
    display: none;
}

.slogan-description {
    font-size: 1.2rem;
    color: var(--text-dark-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 内容包装器 */
.contact-content-wrapper {
    display: grid;
    gap: 60px;
    max-width: 100%;
    margin: 0 auto;
    align-items: start;
}

/* 表单容器调整 */
.contact-form-container {
    background: rgba(255, 255, 255, 0.08);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 联系信息容器 */
.contact-info-container {
    display: flex;
    gap: 40px;
}

.contact-info-section {
    padding: 30px;
    text-align: center;
}

.contact-info-section h4 {
    color: var(--text-dark);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 25px;
    text-align: center;
}
.contact-info-section a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}
.qr-code-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.qr-code {
    width: 120px;
    height: 120px;
    transition: all 0.3s ease;
}

.qr-code:hover {
    transform: scale(1.05);
}

.qr-code-item p {
    color: var(--text-dark-secondary);
    font-size: .8rem;
    font-weight: 500;
    margin: 0;
}

/* 在main.css中添加或替换以下样式 */

/* 下载容器网格布局 */
.contact-download-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr; /* 双列布局 */
    grid-template-rows: auto auto;   /* 双排布局 */
    gap: 20px;                       /* 网格间距 */
    padding: 20px;
}

/* contact-info-section 样式调整 */
.contact-download-container .contact-info-section {
    padding: 25px 20px;
    text-align: left; /* 左对齐更整洁 */
    transition: all 0.3s ease;
}

.contact-download-container .contact-info-section h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    font-weight: 600;
    text-align: center;
    padding-bottom: 10px;
}

/* 导航项目样式 */
.contact-download-container .nav-item {
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.contact-download-container .nav-item:last-child {
    margin-bottom: 0;
}

.contact-download-container .nav-link {
    display: block;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(0, 123, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-download-container .nav-link:hover {
    background: rgba(0, 123, 255, 0.1);
    border-color: var(--secondary-color);
    transform: translateX(5px);
    box-shadow: 0 3px 10px rgba(0, 123, 255, 0.2);
}

.contact-download-container .nav-link span {
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.contact-download-container .nav-link:hover span {
    color: var(--primary-color);
}

/* 添加小图标效果 */
.contact-download-container .nav-link::before {
    content: '→';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    opacity: 0;
    transition: all 0.3s ease;
    color: var(--secondary-color);
    font-weight: bold;
}

.contact-download-container .nav-link:hover::before {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* 响应式设计 */
@media (max-width: 968px) {
    .contact-download-container {
        grid-template-columns: 1fr 1fr; /* 移动端改为单列 */
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .contact-download-container {
        padding: 15px;
        gap: 12px;
    }
    
    .contact-download-container .contact-info-section {
        padding: 20px 15px;
    }
    
    .contact-download-container .contact-info-section h4 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    
    .contact-download-container .nav-item {
        margin-bottom: 10px;
    }
    
    .contact-download-container .nav-link {
        padding: 8px 12px;
    }
    
    .contact-download-container .nav-link span {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .contact-download-container {
        padding: 12px;
        gap: 10px;
    }
    
    .contact-download-container .contact-info-section {
        padding: 15px 12px;
    }
    
    .contact-download-container .nav-link {
        padding: 6px 10px;
    }
}

/* 版权信息 */
.contact-footer {
    padding: 30px 20px;
    margin-top: auto;
}

.copyright {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.copyright p {
    color: #b0b0b0;
    font-size: 0.95rem;
    margin: 8px 0;
    line-height: 1.5;
}

.copyright p:first-child {
    color: var(--text-dark);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .contact-content-wrapper {
        gap: 40px;
    }
    
    .slogan-title {
        font-size: 1.8rem;
    }
    
    .slogan-description {
        font-size: 1.1rem;
    }
    
    .contact-info-container {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .contact .content {
        padding: 60px 15px 30px;
    }
    
    .slogan-section {
        margin: 30px 0 40px;
        padding: 25px 20px;
    }
    
    .slogan-title {
        font-size: 1.6rem;
        margin-bottom: 15px;
    }
    
    .slogan-description {
        font-size: 1rem;
    }
    
    .contact-form-container,
    .contact-info-section {
        padding: 25px 20px;
    }
    
    .qr-code {
        width: 100px;
        height: 100px;
    }
    
    .contact-info-section h4 {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }
    
    .copyright p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .slogan-title {
        font-size: 1.4rem;
    }
    
    .slogan-description {
        font-size: 0.95rem;
    }
    
    .contact-form-container,
    .contact-info-section {
        padding: 20px 15px;
    }
    
    .qr-code {
        width: 90px;
        height: 90px;
    }
    
    .contact-footer {
        padding: 25px 15px;
    }
}


/* ==================== 下载页面样式 ==================== */
/* 下载页面动态背景 */
.download-bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: #0070F7;
    /* background: linear-gradient(135deg, #0070f7 0%, #1e88e5 25%, #42a5f5 50%, #0070f7 75%, #005bb5 100%); */
    /* animation: downloadBgShift 20s ease-in-out infinite; */
}

@keyframes downloadBgShift {
    0%, 100% { 
        background: linear-gradient(135deg, #0070f7 0%, #1e88e5 25%, #42a5f5 50%, #0070f7 75%, #005bb5 100%);
    }
    50% { 
        background: linear-gradient(135deg, #003d82 0%, #0070f7 25%, #1e88e5 50%, #0070f7 75%, #003d82 100%);
    }
}

/* 下载页面粒子效果 */
.download-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.download-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(0, 255, 170, 0.8);
    border-radius: 50%;
    animation: downloadParticleFloat 15s infinite linear;
    box-shadow: 0 0 10px rgba(0, 255, 170, 0.5);
}

@keyframes downloadParticleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
        transform: translateY(90vh) rotate(36deg) scale(1);
    }
    90% {
        opacity: 1;
        transform: translateY(10vh) rotate(324deg) scale(1);
    }
    100% {
        transform: translateY(-10vh) rotate(360deg) scale(0);
        opacity: 0;
    }
}

/* 下载页面头部导航 */
.download-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 20px 0;
}

.download-header.scrolled {
    background-color: rgba(0, 112, 247, 0.95);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.download-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.download-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.download-logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(0, 255, 170, 0.5);
}

.download-logo img {
    height: 36px;
}

.download-nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.download-nav-links a {
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    position: relative;
}

.download-nav-links a:hover,
.download-nav-links a.active {
    color: var(--text-light);
    background: rgba(0, 255, 170, 0.1);
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.3);
}

/* 下载页面主容器 */
.download-main-container {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: 60px;
    color: #ffffff;
}

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

/* 下载页面标题 */
.download-page-title {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
}

.download-page-title h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    color: #FFF;
}

@keyframes downloadTitleGlow {
    from { filter: drop-shadow(0 0 10px rgba(0, 255, 170, 0.3)); }
    to { filter: drop-shadow(0 0 30px rgba(0, 255, 170, 0.6)); }
}

.download-page-title p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-title-decoration {
    display: none;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.download-pulse-dot {
    width: 12px;
    height: 12px;
    background: var(--text-light);
    border-radius: 50%;
    animation: downloadPulse 2s ease-in-out infinite;
}

.download-pulse-dot:nth-child(2) { animation-delay: 0.3s; }
.download-pulse-dot:nth-child(3) { animation-delay: 0.6s; }

@keyframes downloadPulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 1;
    }
    50% { 
        transform: scale(1.5);
        opacity: 0.5;
    }
}

/* 下载统计 */
.download-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.download-stat-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(16, 1, 79, 0.05);
    padding: 30px 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-stat-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 170, 0.1), transparent);
    transform: rotate(45deg);
    animation: downloadStatShine 3s linear infinite;
}

@keyframes downloadStatShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.download-stat-item:hover {
    transform: translateY(-5px);
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2); */
}

.download-stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--text-light), #007bff);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    position: relative;
    z-index: 1;
}

.download-stat-info {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.download-stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-light);
    line-height: 1;
    margin-bottom: 5px;
}

.download-stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 下载产品网格 */
.download-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

/* 下载产品卡片 */
.download-product-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.download-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 170, 0.1), rgba(0, 123, 255, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.download-product-card:hover::before {
    opacity: 1;
}

.download-card-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--text-light), #007bff, #ff6b6b, var(--text-light));
    background-size: 400% 400%;
    border-radius: 24px;
    z-index: -1;
    opacity: 0;
    animation: downloadCardGlow 4s ease-in-out infinite;
    transition: opacity 0.4s ease;
}

.download-product-card:hover .download-card-glow {
    opacity: 1;
}

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

/* 下载产品头部 */
.download-product-header {
    padding: 30px 30px 0;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.download-product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--text-light), #007bff);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.download-product-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: downloadIconShine 3s linear infinite;
}

@keyframes downloadIconShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.download-product-info {
    flex: 1;
    min-width: 0;
}

.download-product-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
    line-height: 1.2;
}

.download-version {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
    margin: 0;
}

.download-product-badge {
    background: linear-gradient(135deg, var(--text-light), #00cc88);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.download-product-badge.enterprise {
    background: linear-gradient(135deg, #007bff, #0056b3);
}

.download-product-badge.stable {
    background: linear-gradient(135deg, #28a745, #1e7e34);
}

.download-product-badge.pro {
    background: linear-gradient(135deg, #ff6b6b, #ff5252);
}

/* 下载产品描述 */
.download-product-description {
    padding: 20px 30px;
    position: relative;
    z-index: 1;
}

.download-product-description p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 25px;
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.download-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 170, 0.1);
    padding: 8px 12px;
    border-radius: 15px;
    font-size: 14px;
    color: var(--text-light);
    border: 1px solid rgba(0, 255, 170, 0.3);
}

.download-feature-item i {
    font-size: 12px;
}

/* 下载产品页脚 */
.download-product-footer {
    padding: 0 30px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.download-file-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.download-file-size {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
}

.download-file-date {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.download-buttons {
    display: flex;
    gap: 10px;
}

.download-btn-primary {
    background: linear-gradient(135deg, var(--text-light), #007bff);
    color: white;
    padding: 15px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.download-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

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

.download-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.4);
}

.download-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 15px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 下载技术支持区域 */
.download-support-section {
    margin-bottom: 60px;
}

.download-support-section h2 {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #FFF;
}

.download-support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.download-support-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-support-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 170, 0.2);
}

.download-support-card i {
    font-size: 48px;
    color: var(--text-light);
    margin-bottom: 20px;
    display: block;
}

.download-support-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
}

.download-support-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
    line-height: 1.6;
}

.download-support-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    padding: 12px 24px;
    border: 2px solid var(--text-light);
    border-radius: 25px;
    transition: all 0.3s ease;
    display: inline-block;
}

.download-support-link:hover {
    background: var(--text-light);
    color: #000000;
    transform: translateY(-2px);
}

/* 下载页面页脚 */
.download-footer {
    padding: 30px 0;
    text-align: center;
}

.download-footer p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* 下载页面响应式设计 */
@media (max-width: 1024px) {
    .download-products-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 25px;
    }
    
    .download-stats {
        gap: 40px;
    }
    
    .download-page-title h1 {
        font-size: 42px;
    }
}

@media (max-width: 768px) {
    .download-nav-links {
        display: none;
    }

    .download-product-icon {
        display: none;
    }
    
    .download-products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .download-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .download-stat-item {
        width: 100%;
        max-width: 300px;
    }
    
    .download-page-title h1 {
        font-size: 36px;
    }
    
    .download-product-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .download-product-footer {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .download-support-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .download-container {
        padding: 0 15px;
    }
    
    .download-page-title h1 {
        font-size: 28px;
    }
    
    .download-product-card {
        margin: 0 10px;
    }
    
    .download-product-header,
    .download-product-description,
    .download-product-footer {
        padding-left: 20px;
        padding-right: 20px;
    }
}

/* 下载页面动画优化 */
.download-product-card {
    animation: downloadFadeInUp 0.8s ease forwards;
}

.download-product-card:nth-child(1) { animation-delay: 0.1s; }
.download-product-card:nth-child(2) { animation-delay: 0.2s; }
.download-product-card:nth-child(3) { animation-delay: 0.3s; }
.download-product-card:nth-child(4) { animation-delay: 0.4s; }

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


/* 禁用按钮样式 */
.download-btn-primary.disabled {
    background: rgb(0 0 0 / 10%);
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
    pointer-events: none;
}

.download-btn-primary.disabled:hover {
    transform: none;
    box-shadow: none;
}

.download-btn-primary.disabled::before {
    display: none;
}