* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #ffffff;
    color: #333333;
    overflow-x: hidden;
}

html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
    scroll-behavior: smooth;
    background-color: #ffffff;
    color: #333333;
}

 
/* 顶部导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 5%;
    background-color: rgba(255, 255, 255, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    right: 0; /* 强制左右拉满，防止因宽度计算错误导致向左偏移 */
    height: 100px;
    z-index: 99999; /* 终极层级 */
    border-bottom: 1px solid rgba(200, 200, 200, 0.3);
    transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    /* 【注意：这里已经删除了 transform 和毛玻璃，防止安卓滚动时图层丢失消失】 */
}

/* 补充：当你向下滑动触发 JS 时的确切固定样式，确保不透明 */
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
}

/* 响应式调整 - 与导航栏高度同步 */
@media (max-width: 768px) {
    .navbar {
        height: 80px; 
        padding: 0 20px; /* 调整内边距，确保左右贴边 */
        background-color: rgba(255, 255, 255, 0.98);
    }
    
    .navbar-placeholder {
        height: 80px; 
    }
    
    .content {
        margin-top: 80px; 
    }
}
/* Logo容器样式 */
/* Logo容器样式 */
.logo-container {
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden; /* 【极度关键】：截断跑到外面的光效动画，防止撑宽手机屏幕 */
    border-radius: 4px; /* 让扫光边缘更平滑 */
    padding: 2px 0;
}





.logo {
    position: relative;
    z-index: 1;
    height: 50px;
}

/* Logo光影动画效果 */
.logo-light {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.8) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    z-index: 2;
    animation: lightMove 3s infinite;
}

@keyframes lightMove {
    0% {
        transform: translateX(-100%) skewX(-20deg);
    }
    100% {
        transform: translateX(150%) skewX(-20deg);
    }
}















/* 调整导航链接间距 */
.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: #666666;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-links a:hover {
    color: #333333;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, #4a9fff, #8a64ff);
    transition: width 0.3s ease;
}

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

.nav-links a.active {
    color: #333333;
    font-weight: 600;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 导航栏占位符 - 响应式处理 */
.navbar-placeholder {
    width: 100%;
    display: block;
    pointer-events: none;
    /* 默认桌面端高度 */
    height: 100px;
}












/* 响应式调整 - 与导航栏高度同步 */
@media (max-width: 768px) {
    .navbar {
        height: 80px; /* 手机端导航栏高度降低 */
        padding: 20px; /* 调整内边距 */
        
        /* 修正：移动端强制降级毛玻璃效果，改为极高透明度的纯色，根除回弹闪屏 */
        background-color: rgba(255, 255, 255, 0.98);
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }
    
    .navbar-placeholder {
        height: 80px; /* 手机端占位高度同步 */
    }
    
    /* 手机端内容区域调整 */
    .content {
        margin-top: 80px; /* 调整手机端顶部边距 */
    }
}













/* 确保所有有id的锚点元素都有正确的滚动偏移 */
section[id],
article[id],
div[id] {
    scroll-margin-top: 100px; /* 桌面端偏移 */
}

@media (max-width: 768px) {
    section[id],
    article[id],
    div[id] {
        scroll-margin-top: 80px; /* 手机端偏移 */
    }
}

/* 平滑滚动设置 */
html {
    scroll-behavior: smooth;
    /* 设置全局滚动偏移 */
    scroll-padding-top: 100px;
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 80px;
    }
}
























/* 桌面端语言切换器 - 全面美化 */
.language-switcher {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 12px 18px;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #fafafa 0%, #ffffff 100%);
    border: 1px solid rgba(0, 0, 0, 0.08);
    height: 52px;
    min-width: 130px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.language-switcher:hover {
    background: linear-gradient(135deg, #f5f9ff 0%, #ffffff 100%);
    border-color: #4a9fff;
    box-shadow: 0 4px 16px rgba(74, 159, 255, 0.15);
    transform: translateY(-2px);
}

.language-switcher i:first-child {
    color: #4a9fff;
    font-size: 16px;
}

.current-language {
    font-weight: 500;
    color: #333;
    flex: 1;
    font-size: 15px;
}

.language-switcher i:last-child {
    color: #666;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.language-switcher:hover i:last-child {
    color: #4a9fff;
    transform: translateY(1px);
}

/* 桌面端语言下拉菜单 */
.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(0, 0, 0, 0.04);
    padding: 8px 0;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.08);
    z-index: 1001;
    overflow: hidden;
}

.language-switcher:hover .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 桌面端语言选项 */
.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: #333;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    text-decoration: none;
    position: relative;
    background: white;
    border-bottom: 1px solid #f5f5f5;
}

.language-option:last-child {
    border-bottom: none;
}

/* 桌面端语言国旗样式 */
.desktop-language-flag {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 12px;
    background: #f0f0f0;
    font-size: 11px;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

/* 中文选项样式 */
.language-option[data-lang="zh"] .desktop-language-flag {
    background: #ff4d4d;
    color: white;
}

/* 英文选项样式 */
.language-option[data-lang="en"] .desktop-language-flag {
    background: #4a9fff;
    color: white;
}

/* 桌面端语言文本 */
.desktop-language-text {
    flex: 1;
    font-weight: 500;
    transition: color 0.3s;
}

/* 桌面端选中标记 */
.desktop-language-check {
    opacity: 0;
    color: #4a9fff;
    font-size: 13px;
    transform: scale(0.8);
    transition: all 0.3s ease;
}

/* 桌面端悬停效果 */
.language-option:hover {
    background: linear-gradient(90deg, rgba(74, 159, 255, 0.05), rgba(138, 100, 255, 0.05));
    transform: translateX(4px);
}

.language-option:hover .desktop-language-flag {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(74, 159, 255, 0.2);
}

.language-option:hover .desktop-language-text {
    color: #4a9fff;
}

/* 桌面端选中状态效果 */
.language-option.active {
    background: linear-gradient(90deg, rgba(74, 159, 255, 0.1), rgba(138, 100, 255, 0.1));
}

.language-option.active .desktop-language-flag {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(74, 159, 255, 0.3);
}

.language-option.active .desktop-language-text {
    color: #4a9fff;
    font-weight: 600;
}

.language-option.active .desktop-language-check {
    opacity: 1;
    transform: scale(1);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 32px;
    height: 24px;
    cursor: pointer;
    z-index: 1002;
    transition: transform 0.3s ease;
}

.mobile-menu-btn:hover {
    transform: scale(1.05);
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover span {
    background: #4a9fff;
}

/* 移动端菜单样式 */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100%;
    background: white;
    z-index: 1000;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -2px 0 20px rgba(0, 0, 0, 0.1);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px;
    border-bottom: 1px solid #eee;
    height: 100px;
}

.mobile-logo img {
    max-height: 40px;
}

.mobile-close-btn {
    font-size: 32px;
    color: #333;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.mobile-close-btn:hover {
    color: #4a9fff;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.mobile-nav-links a {
    padding: 18px 0;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #eee;
    font-size: 18px;
    transition: color 0.3s;
}

.mobile-nav-links a:hover {
    color: #4a9fff;
}

.mobile-nav-links a.active {
    color: #4a9fff;
    font-weight: 600;
}

/* 移动端语言切换样式 */
.mobile-language-switcher {
    padding: 20px;
    border-top: 1px solid #eee;
    margin-top: 20px;
}

.mobile-language-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    background: linear-gradient(135deg, #fafafa 0%, #ffffff 100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.mobile-language-toggle:hover {
    border-color: #4a9fff;
    box-shadow: 0 4px 16px rgba(74, 159, 255, 0.15);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #f5f9ff 0%, #ffffff 100%);
}

.mobile-language-toggle i {
    transition: transform 0.3s ease;
    color: #666;
}

.mobile-language-toggle.active i {
    transform: rotate(180deg);
    color: #4a9fff;
}

/* 移动端语言下拉菜单 */
.mobile-language-dropdown {
    position: relative;
    background: white;
    border-radius: 12px;
    margin-top: 12px;
    overflow: hidden;
    display: none;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(0, 0, 0, 0.04);
    transform-origin: top center;
}

.mobile-language-dropdown.show {
    display: block;
    animation: dropdownSlide 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes dropdownSlide {
    0% {
        opacity: 0;
        transform: translateY(-10px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}










/* 移动端语言选项 */
.mobile-language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 16px;
    position: relative;
    background: white;
    border-bottom: 1px solid #f5f5f5;
}

.mobile-language-option:last-child {
    border-bottom: none;
}

/* 移动端语言国旗样式 */
.language-flag {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 12px;
    background: #f0f0f0;
    font-size: 12px;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

/* 中文选项样式 */
.mobile-language-option[data-lang="zh"] .language-flag {
    background: #ff4d4d;
    color: white;
}

/* 英文选项样式 */
.mobile-language-option[data-lang="en"] .language-flag {
    background: #4a9fff;
    color: white;
}

/* 移动端语言名称 */
.language-text {
    flex: 1;
    font-weight: 500;
    transition: color 0.3s;
}

/* 移动端选中标记 */
.language-check {
    opacity: 0;
    color: #4a9fff;
    font-size: 14px;
    transform: scale(0.8);
    transition: all 0.3s ease;
}

/* 移动端悬停效果 */
.mobile-language-option:hover {
    background: linear-gradient(90deg, rgba(74, 159, 255, 0.05), rgba(138, 100, 255, 0.05));
    transform: translateX(4px);
}

.mobile-language-option:hover .language-flag {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(74, 159, 255, 0.2);
}

.mobile-language-option:hover .language-text {
    color: #4a9fff;
}

/* 移动端选中状态效果 */
.mobile-language-option.active {
    background: linear-gradient(90deg, rgba(74, 159, 255, 0.1), rgba(138, 100, 255, 0.1));
    position: relative;
}

.mobile-language-option.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(to bottom, #4a9fff, #8a64ff);
}

.mobile-language-option.active .language-flag {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(74, 159, 255, 0.3);
}

.mobile-language-option.active .language-text {
    color: #4a9fff;
    font-weight: 600;
}

.mobile-language-option.active .language-check {
    opacity: 1;
    transform: scale(1);
}

.content {
    margin-top: 100px;
    padding: 50px 5%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links {
        display: none;
    }
    
    .language-switcher {
        display: none;
    }
    
    .mobile-menu.open {
        right: 0;
    }
    
    .mobile-menu-overlay.show {
        display: block;
        opacity: 1;
    }
    
    .navbar {
        padding: 20px;
    }
}

@media (min-width: 769px) {
    .mobile-menu,
    .mobile-menu-overlay {
        display: none !important;
    }
}

 

:root {
    --primary-color: #4a9fff;
    --secondary-color: #8a64ff;
    --accent-color: #2ecc71;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
    --text-color: #444;
    --text-light: #777;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-dark: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
}







      /* 底部样式 - 整体高度降低20% */
      .footer {
        background: var(--gradient-dark);
        color: white;
        padding: 70px 5% 40px;
        position: relative;
        overflow: hidden;
        border-top: 1px solid rgba(100, 149, 237, 0.2);
    }
    
    .footer::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 1px;
        background: linear-gradient(90deg, 
            transparent, 
            rgba(74, 159, 255, 0.5), 
            rgba(138, 100, 255, 0.5), 
            transparent);
    }
    
    .footer::after {
        content: '';
        position: absolute;
        top: -150px;
        right: -150px;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(74, 159, 255, 0.05) 0%, transparent 70%);
        border-radius: 50%;
        z-index: 1;
    }
    
    /* 一行三列布局 - 优化对齐 */
    .footer-content {
        max-width: 1300px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1.1fr 1fr 1fr;
        gap: 60px;
        position: relative;
        z-index: 2;
    }
    
    /* 联系方式区域 - 缩小 */
    .footer-contact {
        display: flex;
        flex-direction: column;
    }
    
    .contact-title {
        display: flex;
        align-items: center;
        margin-bottom: 25px;
    }
    
    .contact-title i {
        width: 44px;
        height: 44px;
        background: var(--gradient-primary);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 14px;
        color: white;
        font-size: 16px;
        flex-shrink: 0;
        box-shadow: 0 4px 10px rgba(74, 159, 255, 0.2);
    }
    
    .contact-title h3 {
        font-size: 18px;
        font-weight: 700;
        color: #e2e8f0;
        margin: 0;
        position: relative;
        letter-spacing: 0.3px;
    }
    
    .contact-info {
        background: var(--card-bg);
        border-radius: 14px;
        padding: 22px;
        border: 1px solid var(--card-border);
        margin-bottom: 20px;
        backdrop-filter: blur(8px);
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
    }
    
    .contact-item {
        display: flex;
        align-items: center;
        margin-bottom: 15px;
        padding: 14px;
        background: rgba(255, 255, 255, 0.02);
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.05);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .contact-item:hover {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(74, 159, 255, 0.2);
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    }
    
    .contact-item i {
        width: 36px;
        height: 36px;
        background: var(--gradient-primary);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 14px;
        color: white;
        font-size: 14px;
        flex-shrink: 0;
    }
    
    .contact-text {
        flex: 1;
    }
    
    .contact-label {
        display: block;
        font-size: 10px;
        color: #94a3b8;
        margin-bottom: 3px;
        text-transform: uppercase;
        letter-spacing: 1px;
        font-weight: 600;
    }
    
    .contact-value {
        display: block;
        font-size: 14px;
        color: #e2e8f0;
        font-weight: 500;
        line-height: 1.4;
    }
    
    /* 微信二维码区域 - 修复二维码遮挡问题 */
    .wechat-section {
        margin-top: 18px;
    }
    
    .wechat-hover-trigger {
        background: var(--card-bg);
        border-radius: 12px;
        padding: 18px;
        border: 1px solid var(--card-border);
        text-align: center;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        cursor: pointer;
        min-height: 110px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        position: relative;
    }
    
    .wechat-hover-trigger:hover {
        background: rgba(74, 159, 255, 0.08);
        border-color: rgba(74, 159, 255, 0.3);
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    }
    
    .wechat-hover-trigger i {
        font-size: 32px;
        color: var(--primary-color);
        margin-bottom: 10px;
        transition: all 0.3s ease;
    }
    
    .wechat-hover-trigger:hover i {
        transform: scale(1.1);
    }
    
    .wechat-hover-trigger p {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.9);
        margin: 0;
        font-weight: 600;
        letter-spacing: 0.2px;
    }
    
    .wechat-hover-trigger .hover-text {
        font-size: 11px;
        color: rgba(255, 255, 255, 0.6);
        margin-top: 6px;
        font-weight: 500;
    }
    
    /* 修复二维码弹窗 - 确保不被边框限制 */
    .qrcode-popup {
        position: absolute;
        top: -25px; /* 进一步向上移动 */
        left: -25px; /* 进一步向左移动 */
        width: calc(100% + 50px); /* 增加宽度，确保完全超出边框 */
        height: calc(100% + 50px); /* 增加高度，确保完全超出边框 */
        background: rgba(10, 25, 47, 0.98);
        border-radius: 18px; /* 增加圆角 */
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1000; /* 提高层级 */
        padding: 30px; /* 增加内边距 */
        backdrop-filter: blur(10px);
        border: 2px solid rgba(255, 255, 255, 0.2); /* 添加边框 */
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3); /* 增强阴影 */
    }
    
    .wechat-hover-trigger:hover .qrcode-popup {
        opacity: 1;
        visibility: visible;
    }
    
    .qrcode-popup img {
        width: 120px; /* 增大二维码尺寸 */
        height: 120px;
        border-radius: 10px; /* 增加圆角 */
        border: 2px solid rgba(255, 255, 255, 0.3); /* 增强边框 */
        margin-bottom: 10px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        background: white; /* 添加白色背景，让二维码更清晰 */
        padding: 10px; /* 二维码周围留白 */
        object-fit: contain; /* 确保图片不会被裁剪 */
    }
    
    .qrcode-popup p {
        font-size: 14px; /* 增大字体 */
        color: rgba(255, 255, 255, 0.95);
        text-align: center;
        line-height: 1;
        font-weight: 500;
   
    }
    
    /* 分类区域 - 优化对齐和美化 */
    .footer-links-group {
        display: flex;
        flex-direction: column;
    }
    
    .column-header {
        display: flex;
        align-items: center;
        margin-bottom: 25px;
    }
    
    .column-icon {
        width: 44px;
        height: 44px;
        background: linear-gradient(135deg, rgba(74, 159, 255, 0.12), rgba(138, 100, 255, 0.12));
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 14px;
        border: 1px solid rgba(74, 159, 255, 0.1);
    }
    
    .column-icon i {
        color: var(--primary-color);
        font-size: 18px;
    }
    
    .footer-heading {
        font-size: 18px;
        font-weight: 700;
        color: #e2e8f0;
        margin: 0;
        position: relative;
        letter-spacing: 0.3px;
    }
    
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .footer-links li {
        margin-bottom: 10px;
    }
    
    .footer-links a {
        display: flex;
        align-items: center;
        color: rgba(255, 255, 255, 0.75);
        text-decoration: none;
        padding: 12px 14px;
        border-radius: 8px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        overflow: hidden;
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid rgba(255, 255, 255, 0.03);
    }
    
    .footer-links a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, 
            transparent, 
            rgba(74, 159, 255, 0.08), 
            transparent);
        transition: left 0.6s ease;
    }
    
    .footer-links a:hover::before {
        left: 100%;
    }
    
    .footer-links a:hover {
        background: rgba(255, 255, 255, 0.05);
        color: white;
        transform: translateX(4px);
        border-left: 3px solid var(--primary-color);
        box-shadow: 0 5px 14px rgba(0, 0, 0, 0.1);
    }
    
    .link-bullet {
        width: 5px;
        height: 5px;
        background: var(--gradient-primary);
        border-radius: 50%;
        margin-right: 12px;
        transition: all 0.3s ease;
    }
    
    .footer-links a:hover .link-bullet {
        transform: scale(1.4);
        background: var(--primary-color);
        box-shadow: 0 0 8px rgba(74, 159, 255, 0.5);
    }
    
    .footer-links a span {
        flex: 1;
        font-size: 14px;
        font-weight: 500;
        letter-spacing: 0.1px;
    }
    
    .link-arrow {
        color: #64748b;
        font-size: 11px;
        transition: all 0.3s ease;
        opacity: 0.7;
    }
    
    .footer-links a:hover .link-arrow {
        color: var(--primary-color);
        transform: translateX(3px);
        opacity: 1;
    }
    
    /* 查看全部案例链接 - 缩小 */
    .view-all-cases {
        margin-top: 25px;
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    .view-all-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        color: #e2e8f0;
        text-decoration: none;
        padding: 14px 18px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 10px;
        border: 1px solid rgba(74, 159, 255, 0.2);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        overflow: hidden;
    }
    
    .view-all-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, rgba(74, 159, 255, 0.1), rgba(138, 100, 255, 0.1));
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .view-all-link:hover::before {
        opacity: 1;
    }
    
    .view-all-link:hover {
        color: white;
        border-color: rgba(74, 159, 255, 0.4);
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    
    .view-all-link span {
        font-size: 15px;
        font-weight: 600;
        position: relative;
        z-index: 1;
    }
    
    .arrow-circle {
        width: 36px;
        height: 36px;
        background: var(--gradient-primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 1;
        box-shadow: 0 3px 10px rgba(74, 159, 255, 0.3);
    }
    
    .arrow-circle i {
        color: white;
        font-size: 14px;
        transition: transform 0.3s ease;
    }
    
    .view-all-link:hover .arrow-circle i {
        transform: rotate(45deg);
    }
    
    /* 底部版权区域 - 缩小 */
    .footer-bottom {
        margin-top: 50px;
        padding-top: 25px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        position: relative;
        z-index: 2;
    }
    
    .footer-bottom::before {
        content: '';
        position: absolute;
        top: -1px;
        left: 50%;
        transform: translateX(-50%);
        width: 150px;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--primary-color), var(--secondary-color), transparent);
    }
    
    .footer-bottom-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
        gap: 15px;
    }
    
    .copyright {
        text-align: left;
        display: flex;
        align-items: center;
        gap: 15px;
    }
    
    .copyright p {
        margin: 0 0 5px 0;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        letter-spacing: 0.2px;
    }
    
    .copyright .slogan {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.45);
        font-style: italic;
        font-weight: 500;
    }
    
    /* 返回顶部按钮 - 电脑端 */
    .back-to-top {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--gradient-primary);
        border-radius: 50%;
        color: white;
        font-size: 16px;
        cursor: pointer;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        border: none;
        box-shadow: 0 4px 12px rgba(74, 159, 255, 0.3);
        margin-right: 10px;
    }
    
    .back-to-top:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(74, 159, 255, 0.4);
    }
    
    .footer-bottom-links {
        display: flex;
        gap: 15px;
    }
    
    .footer-bottom-links a {
        display: flex;
        align-items: center;
        color: rgba(255, 255, 255, 0.7);
        text-decoration: none;
        font-size: 12px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 6px 12px;
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .footer-bottom-links a:hover {
        color: var(--primary-color);
        background: rgba(74, 159, 255, 0.1);
        transform: translateY(-2px);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .footer-bottom-links a i {
        margin-right: 6px;
        font-size: 11px;
    }
    
    .footer-decoration {
        display: flex;
        gap: 6px;
        align-items: center;
    }
    
    .decoration-item {
        width: 5px;
        height: 24px;
        background: var(--gradient-primary);
        border-radius: 2px;
        animation: bounce 2s infinite;
    }
    
    .decoration-item:nth-child(2) {
        animation-delay: 0.2s;
        height: 20px;
    }
    
    .decoration-item:nth-child(3) {
        animation-delay: 0.4s;
        height: 16px;
    }
    
    .decoration-text {
        color: rgba(255, 255, 255, 0.3);
        font-size: 11px;
        margin-left: 8px;
        font-weight: 500;
    }
    
    @keyframes bounce {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-6px); }
    }
    
    /* 重新设计手机端悬浮工具栏 - 简约美观设计 */
    .mobile-contact-bar {
        display: none;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: #ffffff;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        padding: 12px 0;
        border-top: 1px solid #f0f0f0;
    }
    
    .mobile-contact-buttons {
        display: flex;
        justify-content: space-around;
        align-items: center;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .mobile-contact-btn {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        padding: 8px 12px;
        border-radius: 10px;
        transition: all 0.2s ease;
        color: #333;
        flex: 1;
        max-width: 140px;
    }
    
    .mobile-contact-btn:hover {
        background-color: rgba(74, 159, 255, 0.05);
    }
    
    .mobile-contact-btn.call {
        color: #4a9fff;
    }
    
    .mobile-contact-btn.wechat {
        color: #2ecc71;
    }
    
    .mobile-contact-btn i {
        font-size: 22px;
        margin-bottom: 5px;
        width: 48px;
        height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: rgba(74, 159, 255, 0.08);
        transition: all 0.3s ease;
    }
    
    .mobile-contact-btn.call i {
        background: rgba(74, 159, 255, 0.1);
    }
    
    .mobile-contact-btn.wechat i {
        background: rgba(46, 204, 113, 0.1);
    }
    
    .mobile-contact-btn:hover i {
        transform: translateY(-3px);
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    }
    
    .mobile-contact-btn span {
        font-size: 12px;
        font-weight: 600;
        color: #555;
        letter-spacing: 0.3px;
    }
    
    /* 微信二维码弹窗 */
    .wechat-modal {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.85);
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 2000;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        backdrop-filter: blur(8px);
    }
    
    .wechat-modal.active {
        opacity: 1;
        visibility: visible;
    }
    
    .modal-content {
        background: var(--gradient-dark);
        border-radius: 16px;
        padding: 30px;
        text-align: center;
        max-width: 90%;
        width: 300px;
        position: relative;
        border: 2px solid rgba(74, 159, 255, 0.4);
        box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
        transform: translateY(20px);
        transition: transform 0.3s ease;
    }
    
    .wechat-modal.active .modal-content {
        transform: translateY(0);
    }
    
    .modal-close {
        position: absolute;
        top: 12px;
        right: 16px;
        color: rgba(255, 255, 255, 0.6);
        font-size: 24px;
        text-decoration: none;
        line-height: 1;
        cursor: pointer;
        transition: color 0.3s ease;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
    }
    
    .modal-close:hover {
        color: white;
        background: rgba(255, 255, 255, 0.1);
    }
    
    .modal-content h3 {
        font-size: 18px;
        color: white;
        margin-bottom: 16px;
        font-weight: 600;
    }
    
    .modal-content img {
        width: 180px;
        height: 180px;
        border-radius: 8px;
        border: 2px solid rgba(255, 255, 255, 0.2);
        margin-bottom: 16px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        background: white;
        padding: 8px;
        object-fit: contain;
    }
    
    .modal-content p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 13px;
        line-height: 1.4;
        font-weight: 500;
    }
    
    /* 响应式设计 */
    @media (max-width: 1200px) {
        .footer-content {
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            max-width: 1000px;
        }
        
        .footer-content > *:last-child {
            grid-column: span 2;
            justify-self: center;
            max-width: 500px;
            width: 100%;
        }
    }
    
    @media (max-width: 992px) {
        .footer {
            padding: 60px 5% 35px;
        }
        
        .footer-content {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        
        .footer-content > *:last-child {
            grid-column: span 1;
            max-width: 100%;
        }
        
        /* 手机端隐藏联系我们板块 */
        .footer-contact {
            display: none;
        }
        
        /* 手机端隐藏底部链接区域 */
        .footer-bottom-links {
            display: none;
        }
        
        /* 手机端隐藏返回顶部按钮 */
        .back-to-top {
            display: none;
        }
        
        .contact-title,
        .column-header {
            justify-content: center;
            text-align: center;
        }
        
        .contact-info {
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .footer-bottom-content {
            flex-direction: column;
            text-align: center;
            gap: 20px;
        }
        
        .copyright {
            text-align: center;
            flex-direction: column;
            gap: 10px;
        }
        
        .footer-decoration {
            justify-content: center;
        }
        
        /* 显示移动端悬浮工具栏 */
        .mobile-contact-bar {
            display: block;
        }
        
        /* 隐藏桌面端的微信悬停效果 */
        .wechat-section .wechat-hover-trigger:hover .qrcode-popup {
            opacity: 0;
            visibility: hidden;
        }
        
        .wechat-section .wechat-hover-trigger {
            cursor: default;
        }
        
        .wechat-section .wechat-hover-trigger:hover {
            transform: none;
            background: var(--card-bg);
            border-color: var(--card-border);
        }
        
        /* 在手机端调整二维码弹窗位置 */
        .qrcode-popup {
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: 12px;
            padding: 20px;
        }
        
        .qrcode-popup img {
            width: 120px;
            height: 120px;
        }
    }
    
    @media (max-width: 768px) {
        .footer {
            padding: 50px 5% 30px;
        }
        
        .footer-bottom-content {
            gap: 15px;
        }
        
        /* 调整移动端悬浮工具栏 */
        .mobile-contact-bar {
            padding: 10px 0;
        }
        
        .mobile-contact-btn {
            padding: 8px 10px;
            max-width: 120px;
        }
        
        .mobile-contact-btn i {
            font-size: 20px;
            width: 44px;
            height: 44px;
        }
        
        .mobile-contact-btn span {
            font-size: 11px;
        }
    }
    
    @media (max-width: 576px) {
        .footer {
            padding: 40px 5% 25px;
        }
        
        .footer-heading,
        .contact-title h3 {
            font-size: 16px;
        }
        
        .qrcode-popup img {
            width: 100px;
            height: 100px;
        }
        
        .modal-content {
            padding: 24px 16px;
            width: 260px;
        }
        
        .modal-content img {
            width: 150px;
            height: 150px;
        }
        
        .contact-info {
            padding: 18px;
        }
        
        /* 调整小屏幕下的悬浮工具栏 */
        .mobile-contact-bar {
            padding: 8px 0;
        }
        
        .mobile-contact-btn {
            padding: 6px 8px;
            max-width: 110px;
        }
        
        .mobile-contact-btn i {
            font-size: 18px;
            width: 40px;
            height: 40px;
            margin-bottom: 4px;
        }
        
        .mobile-contact-btn span {
            font-size: 10px;
        }
    }
    
    /* 黑暗主题调整 */
    @media (prefers-color-scheme: dark) {
        .footer {
            background: linear-gradient(135deg, #0a0f1f 0%, #141b2d 100%);
        }
        
        /* 暗色主题下的手机悬浮按钮 */
        .mobile-contact-bar {
            background: #1a1a1a;
            border-top: 1px solid #333;
        }
        
        .mobile-contact-btn {
            color: #ddd;
        }
        
        .mobile-contact-btn:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
        
        .mobile-contact-btn i {
            background: rgba(255, 255, 255, 0.08);
        }
        
        .mobile-contact-btn.call i {
            background: rgba(74, 159, 255, 0.15);
        }
        
        .mobile-contact-btn.wechat i {
            background: rgba(46, 204, 113, 0.15);
        }
        
        .mobile-contact-btn span {
            color: #ccc;
        }
    }
    
    /* 产品分类限制为3个 */
    .footer-links-group:nth-child(2) .footer-links li:nth-child(n+4) {
        display: none;
    }
    
    /* 微调对齐 */
    .footer-contact, 
    .footer-links-group {
        align-self: start;
    }




    /* 全屏通用样式 */
.fullscreen-section {
    height: 70vh;
    min-height: 500px;
    width: 100%;
    position: relative;
    overflow: hidden;
}
	/* About Hero区域 */
    .about-hero-section {
        background: linear-gradient(to bottom, #ffffff 0%, #f9f9f9 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 0 5%;
        position: relative;
    }

    /* 科技背景装饰（复用） */
    .tech-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 1;
        background: radial-gradient(circle at 20% 50%, rgba(74, 159, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(138, 100, 255, 0.05) 0%, transparent 50%);
    }

    /* 金属线条装饰（复用） */
    .metal-lines {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-image:
                linear-gradient(90deg, transparent 95%, rgba(200, 200, 200, 0.1) 95%),
                linear-gradient(0deg, transparent 95%, rgba(200, 200, 200, 0.1) 95%);
        background-size: 50px 50px;
        z-index: 2;
        opacity: 0.3;
    }



      /* 返回顶部按钮独立样式 */
      .back-to-top-btn {
        position: fixed;
        bottom: 30px;
        right: 30px;
        width: 50px;
        height: 50px;
        background: #4a9fff;
        color: white;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
        z-index: 999;
        box-shadow: 0 5px 15px rgba(74, 159, 255, 0.3);
        border: none;
        outline: none;
        font-size: 18px;
    }
    
    .back-to-top-btn.visible {
        opacity: 1;
        transform: translateY(0);
    }
    
    .back-to-top-btn:hover {
        background: #8a64ff;
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(138, 100, 255, 0.4);
    }
    
    .back-to-top-btn:active {
        transform: translateY(-2px);
    }
    
    /* 变体样式 */
    .back-to-top-btn.variant-2 {
        background: #36B37E;
        box-shadow: 0 5px 15px rgba(54, 179, 126, 0.3);
    }
    
    .back-to-top-btn.variant-2:hover {
        background: #2e9c6e;
    }
    
    .back-to-top-btn.variant-3 {
        background: transparent;
        border: 2px solid #FF6B35;
        color: #FF6B35;
    }
    
    .back-to-top-btn.variant-3:hover {
        background: #FF6B35;
        color: white;
    }
    
    .back-to-top-btn.with-text {
        width: auto;
        height: auto;
        padding: 12px 20px;
        border-radius: 25px;
        font-size: 14px;
        font-weight: 600;
    }
    
    .back-to-top-btn.with-text i {
        margin-right: 8px;
    }
    
    /* 动画效果 */
    @keyframes bounce {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-10px); }
    }
    
    .back-to-top-btn.bounce {
        animation: bounce 1s ease infinite;
    }
    
    /* 按钮组样式 */
    .button-group {
        display: flex;
        gap: 15px;
        margin-top: 30px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .style-btn {
        padding: 10px 20px;
        background: white;
        border: 2px solid #4a9fff;
        color: #4a9fff;
        border-radius: 8px;
        cursor: pointer;
        font-weight: 600;
        transition: all 0.3s ease;
    }
    
    .style-btn:hover {
        background: #4a9fff;
        color: white;
    }
    
    @media (max-width: 768px) {
        .back-to-top-btn {
            bottom: 20px;
            right: 20px;
            width: 40px;
            height: 40px;
            font-size: 16px;
        }
        
        .back-to-top-btn.with-text {
            padding: 10px 15px;
            font-size: 12px;
        }
        
       
    }