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

:root {
    /* 主色调 - 橙色系 */
    --primary-color: #FF6B35;
    --primary-dark: #E85A25;
    --primary-light: #FF8C5A;
    
    /* 辅助色 */
    --secondary-color: #2C3E50;
    --accent-color: #3498DB;
    --success-color: #27AE60;
    
    /* 中性色 */
    --text-dark: #2C3E50;
    --text-gray: #7F8C8D;
    --text-light: #ECF0F1;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #1A252F;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
}

html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    /* 禁止图片被选择和拖拽 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    pointer-events: none;
}

/* 允许二维码弹窗中的图片可以点击 */
.qr-image img,
.article-image img,
.qr-modal-content img {
    pointer-events: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn i {
    font-size: 0.9em;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==================== 导航栏 ==================== */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo {
    height: 40px;
    width: auto;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

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

/* 下拉菜单 */
.nav-item-dropdown {
    position: relative;
}

.nav-item-dropdown > a {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-item-dropdown > a i {
    font-size: 0.7em;
    transition: var(--transition);
}

.nav-item-dropdown:hover > a i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--bg-white);
    min-width: 180px;
    padding: 0.5rem 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    font-weight: 500;
    white-space: nowrap;
    position: relative;
}

.dropdown-menu a::after {
    display: none;
}

.dropdown-menu a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
    padding-left: 1.75rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== 英雄区域 ==================== */
.hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    margin-top: 60px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--bg-white);
    max-width: 800px;
    padding: var(--spacing-sm);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.hero-buttons .btn-primary {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

.hero-buttons .btn-primary:hover {
    background-color: var(--bg-light);
}

.hero-buttons .btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border-color: var(--bg-white);
}

.hero-buttons .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ==================== 通用区块样式 ==================== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
}

/* ==================== 特性卡片 ==================== */
.features {
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--bg-white);
    font-size: 2rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-desc {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ==================== 产品预览 ==================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

/* 二大标准：左右分栏布局 */
.standards-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.standard-card {
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition);
}

.standard-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.standard-card--left,
.standard-card--right {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.standard-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.standard-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.standard-desc {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.standard-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.standard-link:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .standards-two-column {
        grid-template-columns: 1fr;
    }
}

/* 三大云平台：三个卡片居中显示，不撑满整行 */
.products-grid--three-center {
    grid-template-columns: repeat(3, minmax(0, 360px));
    justify-content: center;
}

/* 紧凑模式：减少与上一个模块之间的间距 */
.products-preview--compact {
    padding-top: calc(var(--spacing-xl) * 0.5);
}

.product-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 4rem;
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1.5rem 1rem 0.75rem;
    color: var(--text-dark);
}

.product-desc {
    padding: 0 1rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    margin: 0 1rem 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.product-link:hover {
    color: var(--primary-dark);
    transform: translateX(5px);
}

/* ==================== 数据统计 ==================== */
.stats {
    background: linear-gradient(135deg, var(--secondary-color), var(--bg-dark));
    color: var(--bg-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.2rem;
    color: var(--text-light);
}

/* ==================== 加盟优势 ==================== */
.franchise {
    background-color: var(--bg-light);
}

.franchise-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.franchise-list {
    display: grid;
    gap: 2rem;
}

.franchise-item {
    display: flex;
    gap: 1.5rem;
}

.franchise-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.franchise-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.franchise-item p {
    color: var(--text-gray);
    line-height: 1.7;
}

.franchise-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.franchise-cta h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.franchise-cta .btn-primary {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

/* ==================== 客户评价 ==================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-stars {
    color: #FFD700;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.testimonial-text {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-name {
    font-weight: 700;
    color: var(--text-dark);
}

.author-role {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* ==================== CTA区域 ==================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-desc {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.cta-buttons .btn-primary {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

.cta-buttons .btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border-color: var(--bg-white);
}

/* ==================== 页脚 ==================== */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-lg) 0 0;
}

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

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--bg-white);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-brand-text {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.footer-desc {
    color: var(--text-gray);
    line-height: 1.7;
}

.footer-highlight {
    color: var(--primary-color);
    font-weight: 600;
}

/* hero区域的footer-highlight改为白色 */
.hero-subtitle .footer-highlight {
    color: white;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-contact i {
    color: var(--primary-color);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-gray);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .franchise-content {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        flex-direction: column;
        width: 100%;
        background-color: var(--bg-white);
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .cta-title {
        font-size: 1.8rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .feature-icon,
    .franchise-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ==================== 页面头部 ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    text-align: center;
    padding: 5rem var(--spacing-sm) 3rem;
    margin-top: 60px;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* ==================== 新闻中心 ==================== */
.news-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.news-section {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.news-section h2 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-section h2 i {
    color: var(--primary-color);
}

.news-list {
    display: grid;
    gap: 1.5rem;
}

.news-item {
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.news-item:hover {
    background-color: #f0f0f0;
    transform: translateX(5px);
}

.news-date {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.news-item h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.news-item p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--primary-dark);
    transform: translateX(3px);
}

.news-more {
    text-align: right;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bg-light);
}

/* ==================== 解决方案 ==================== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.solution-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.solution-card h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.solution-card > p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.solution-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-gray);
    margin-bottom: 0.75rem;
}

.solution-features i {
    color: var(--success-color);
}

/* ==================== 产品展示 ==================== */
.category-nav {
    background-color: var(--bg-white);
    padding: 2rem 0;
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid #f0f0f0;
    position: sticky;
    top: 64px;
    z-index: 999;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.category-nav .container {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 0.5rem;
}

.category-btn {
    padding: 0.6rem 1.2rem;
    border: 2px solid #e0e0e0;
    background-color: var(--bg-white);
    color: var(--text-dark);
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.category-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: rgba(255, 107, 53, 0.05);
    transform: translateY(-2px);
}

.category-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.showcase-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid #f0f0f0;
}

.showcase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 140, 90, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.showcase-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.15);
    border-color: rgba(255, 107, 53, 0.3);
}

.showcase-card:hover::before {
    opacity: 1;
}

.showcase-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, #FFB07A 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.showcase-image::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(50%, 50%); }
}

.showcase-card-content {
    position: relative;
    z-index: 1;
    padding: 1.5rem;
}

.showcase-card h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin: 0 0 0.5rem 0;
    font-weight: 700;
    line-height: 1.4;
}

.showcase-price {
    font-size: 1.6rem;
    color: var(--primary-color);
    font-weight: 800;
    margin: 0.5rem 0;
    display: flex;
    align-items: baseline;
    gap: 0.3rem;
}

.showcase-price span {
    font-size: 0.9rem;
    color: var(--text-gray);
    font-weight: 500;
}

.showcase-desc {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    min-height: 3.4rem;
}

.btn-sm {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.7rem 1.5rem;
    font-size: 0.95rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--bg-white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-sm::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-sm:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
}

.btn-sm:hover::before {
    width: 300px;
    height: 300px;
}

.btn-sm:active {
    transform: translateY(0);
}

/* ==================== 客户案例 ==================== */
.cases-grid {
    display: grid;
    gap: var(--spacing-md);
}

.case-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: grid;
    grid-template-columns: 300px 1fr;
}

.case-image {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 4rem;
}

.case-content {
    padding: 2rem;
}

.case-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.case-tag {
    padding: 0.25rem 0.75rem;
    background-color: rgba(255, 107, 53, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
}

.case-content h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.case-desc {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.case-before-after {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.before,
.after {
    padding: 1rem;
    border-radius: var(--radius-md);
}

.before {
    background-color: rgba(231, 76, 60, 0.1);
}

.after {
    background-color: rgba(39, 174, 96, 0.1);
}

.before strong,
.after strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.before p,
.after p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.case-review {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.case-review i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.case-review p {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 0.75rem;
    font-style: italic;
}

.reviewer {
    color: var(--primary-color);
    font-weight: 600;
    text-align: right;
}

.franchise-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.franchise-stats .stat-item {
    text-align: center;
    padding: 1rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
}

.franchise-stats .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.franchise-stats .stat-label {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* ==================== 常见问题 ==================== */
.faq-container {
    display: grid;
    gap: var(--spacing-md);
}

.faq-section {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.faq-section h2 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.faq-section h2 i {
    color: var(--primary-color);
}

.faq-item {
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.25rem;
    background-color: var(--bg-white);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-question i.active {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1.25rem;
}

.faq-answer.active {
    max-height: 500px;
    padding: 1.25rem;
}

.faq-answer p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ==================== 在线预约 ==================== */
.appointment-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.type-card {
    background-color: var(--bg-white);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.type-card.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-color: var(--primary-color);
    color: var(--bg-white);
}

.type-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.type-card.active .type-icon {
    background-color: rgba(255, 255, 255, 0.2);
}

.type-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.type-card p {
    color: var(--text-gray);
}

.type-card.active p {
    color: rgba(255, 255, 255, 0.9);
}

.appointment-form-container {
    max-width: 600px;
    margin: 0 auto;
}

.appointment-form {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.appointment-form h2 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-group label i {
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 1rem;
}

.notice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.notice-item {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.notice-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 1.3rem;
    margin: 0 auto 1rem;
}

.notice-item h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.notice-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* ==================== 响应式调整 ==================== */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .news-section h2,
    .faq-section h2 {
        font-size: 1.3rem;
    }

    .case-card {
        grid-template-columns: 1fr;
    }

    .case-image {
        height: 200px;
    }

    .case-before-after {
        grid-template-columns: 1fr;
    }

    .solutions-grid {
        grid-template-columns: 1fr;
    }

    .category-nav .container {
        flex-direction: column;
        align-items: stretch;
    }

    .appointment-types {
        grid-template-columns: 1fr;
    }
}

/* ==================== 招聘页面样式 ==================== */
.careers-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.career-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.career-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.career-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.career-header h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.job-type {
    background-color: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.career-info {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.career-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-gray);
}

.career-info i {
    color: var(--primary-color);
    width: 20px;
}

.career-responsibility,
.career-requirements {
    margin-bottom: 1.5rem;
}

.career-responsibility h4,
.career-requirements h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.career-responsibility ul,
.career-requirements ul {
    list-style: none;
    padding-left: 0;
}

.career-responsibility li,
.career-requirements li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--text-gray);
}

.career-responsibility li::before,
.career-requirements li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.careers-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.process-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
}

.process-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1.5rem;
}

.process-item h3 {
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.process-item p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.careers-contact {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.contact-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-item h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .careers-container {
        grid-template-columns: 1fr;
    }

    .careers-process {
        grid-template-columns: 1fr;
    }

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

    .career-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

/* ==================== 文章详情页样式 ==================== */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
}

.article-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.article-date {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.article-header h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    color: var(--text-gray);
    font-size: 0.95rem;
}

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

.article-meta i {
    color: var(--primary-color);
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: var(--spacing-xl);
}

.article-content p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem 0;
    font-weight: 600;
}

.article-content h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.5rem;
    background: var(--primary-color);
    margin-right: 0.75rem;
    vertical-align: middle;
}

.article-content h2 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin: 2.5rem 0 1.5rem 0;
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.article-content ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
    color: var(--text-color);
}

.article-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.article-image {
    margin: 2rem 0;
    text-align: center;
}

.article-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.article-image img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.article-image .image-caption {
    margin-top: 0.75rem;
    color: var(--text-gray);
    font-size: 0.9rem;
    font-style: italic;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.article-tags {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-gray);
}

.article-tags a {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: white;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.article-tags a:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.article-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-gray);
}

.article-share i {
    color: var(--primary-color);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: white;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.share-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.share-btn i {
    color: inherit;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: white;
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    flex: 1;
    justify-content: center;
    min-width: 140px;
}

.nav-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-btn i {
    font-size: 0.9rem;
}

.nav-btn.back {
    flex: 0 0 auto;
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.nav-btn.back:hover {
    background: var(--primary-dark);
}

@media (max-width: 768px) {
    .article-header h1 {
        font-size: 1.8rem;
    }

    .article-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .article-content {
        font-size: 1rem;
    }

    .article-footer {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .article-navigation {
        flex-direction: column;
    }

    .nav-btn {
        width: 100%;
        min-width: auto;
    }
}

/* ==================== 二维码弹窗 ==================== */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.qr-modal.active {
    display: flex;
}

.qr-modal-content {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 400px;
    width: 90%;
    position: relative;
    animation: fadeIn 0.3s ease;
}

.qr-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-gray);
    line-height: 1;
    transition: var(--transition);
}

.qr-close:hover {
    color: var(--primary-color);
}

.qr-modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.qr-image {
    margin: 0 0 1.5rem;
}

.qr-image img {
    max-width: 250px;
    width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.qr-modal-content p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ==================== 悬浮微信咨询按钮 ==================== */
.floating-wechat-btn {
    position: fixed;
    bottom: 90px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #07C160, #06AD56);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
}

.floating-wechat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(7, 193, 96, 0.5);
}

@media (max-width: 768px) {
    .floating-wechat-btn {
        bottom: 70px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* ==================== 图片和内容安全防护 ==================== */
/* 禁止整个页面的选择和复制 */
body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 禁用文本选择 */
* {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 允许输入框、按钮等交互元素被选择 */
input,
textarea,
select,
button,
.contenteditable {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* 禁止右键菜单的视觉提示 */
body {
    -webkit-touch-callout: none;
}

/* 添加透明遮罩层防止截图（高级防护） */
.body-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999999;
    background: transparent;
}