/* 全局重置与基础样式 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4a9eff;
    --accent: #ff6b35;
    --accent-dark: #e55a2b;
    --bg: #f0f4f8;
    --bg-card: rgba(255, 255, 255, 0.75);
    --text: #1a1a2e;
    --text-secondary: #555;
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.3);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

[data-theme="dark"] {
    --bg: #0d1117;
    --bg-card: rgba(30, 35, 45, 0.85);
    --text: #e6edf3;
    --text-secondary: #8b949e;
    --glass-bg: rgba(30, 35, 45, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

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

a:hover {
    color: var(--primary-dark);
}

img, svg {
    max-width: 100%;
    display: block;
}

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

/* 毛玻璃通用类 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.glass:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* 头部导航 */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    gap: 20px;
}

.nav-brand .logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text);
    transition: all var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-toggle,
.theme-toggle,
.menu-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text);
    transition: all var(--transition);
    backdrop-filter: blur(8px);
}

.search-toggle:hover,
.theme-toggle:hover,
.menu-toggle:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.menu-toggle {
    display: none;
}

/* 搜索弹窗 */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

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

.search-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    display: flex;
    gap: 12px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.search-container input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    transition: border var(--transition);
}

.search-container input:focus {
    border-color: var(--primary);
}

.search-container button {
    padding: 14px 24px;
    border: none;
    border-radius: 30px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}

.search-container button:hover {
    background: var(--primary-dark);
}

.search-container button:last-child {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text);
    padding: 14px 18px;
}

/* 面包屑 */
.breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    font-size: 0.9rem;
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb li + li::before {
    content: "›";
    margin-right: 8px;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb span {
    color: var(--text);
}

/* Hero Banner */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #1a73e8 0%, #6c5ce7 50%, #ff6b35 100%);
    background-size: 300% 300%;
    animation: gradientShift 12s ease infinite;
}

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

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-slider {
    position: relative;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
}

.slide {
    display: none;
    animation: fadeSlide 0.6s ease;
}

.slide.active {
    display: block;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-content {
    text-align: center;
    color: #fff;
    padding: 60px 20px;
    max-width: 700px;
    margin: 0 auto;
}

.slide-content h1,
.slide-content h2 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.slide-content p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    opacity: 0.95;
    margin-bottom: 30px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.25);
    color: var(--primary-dark);
}

.btn-secondary {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    border: 2px solid rgba(255,255,255,0.4);
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    border-color: #fff;
    transform: translateY(-2px);
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
}

.slider-prev,
.slider-next {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    border: none;
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-prev:hover,
.slider-next:hover {
    background: rgba(255,255,255,0.4);
    transform: scale(1.05);
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.slider-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all var(--transition);
}

.slider-dots span.active {
    background: #fff;
    transform: scale(1.3);
}

/* 通用section */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* 关于我们 */
.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
    margin-top: 50px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.stat-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.stat-number {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* 品牌故事 */
.story-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px;
    line-height: 1.8;
    color: var(--text);
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.culture-card {
    padding: 36px 28px;
    text-align: center;
}

.culture-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary);
}

.culture-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 核心产品 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.product-card {
    padding: 32px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-card svg {
    margin: 0 auto 16px;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.product-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.product-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(26,115,232,0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.product-card:hover::after {
    opacity: 1;
}

/* 产品优势 */
.advantages-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.advantage-item {
    padding: 32px 28px;
}

.advantage-item h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary);
}

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

/* 服务体系 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.service-card {
    padding: 32px 24px;
    text-align: center;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 解决方案 */
.solution-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.solution-item {
    padding: 32px 28px;
}

.solution-item h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--accent);
}

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

/* 应用场景 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.scenario-card {
    padding: 32px 24px;
    text-align: center;
}

.scenario-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.scenario-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 数据展示 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.data-item {
    padding: 32px 20px;
    text-align: center;
}

.data-number {
    display: block;
    font-size: 2.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.data-label {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* 成功案例 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.case-card {
    padding: 32px 28px;
}

.case-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary);
}

.case-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 合作客户 */
.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    align-items: center;
}

.client-placeholder {
    padding: 20px 36px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: all var(--transition);
}

.client-placeholder:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    color: var(--primary);
}

/* 客户评价 */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.testimonial-card {
    padding: 32px 28px;
    position: relative;
}

.testimonial-card p {
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 16px;
    color: var(--text);
}

.testimonial-card cite {
    font-style: normal;
    font-weight: 600;
    color: var(--primary);
}

/* 新闻中心 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.news-card {
    padding: 28px 24px;
}

.news-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.news-card time {
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

.news-more {
    text-align: center;
    margin-top: 40px;
}

/* 最新文章 */
.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.article-item {
    padding: 28px 24px;
}

.article-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.article-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.read-more {
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.read-more::after {
    content: '→';
    transition: transform var(--transition);
}

.read-more:hover::after {
    transform: translateX(4px);
}

/* 热门推荐 */
.hot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.hot-item {
    padding: 28px 20px;
    text-align: center;
}

.hot-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent);
}

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

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    padding: 24px 28px;
    cursor: pointer;
}

.faq-item h3 {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.faq-item h3::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    transition: transform var(--transition);
    color: var(--primary);
}

.faq-item.active h3::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 0 0 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 16px 0 0 0;
}

/* HowTo */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.step {
    padding: 28px 24px;
    text-align: center;
}

.step h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary);
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 联系我们 */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 28px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.contact-item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-item a {
    color: var(--text);
}

/* 网站地图 */
.sitemap-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 30px;
}

.sitemap-col h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary);
}

.sitemap-col ul {
    list-style: none;
}

.sitemap-col li {
    margin-bottom: 8px;
}

.sitemap-col a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.sitemap-col a:hover {
    color: var(--primary);
}

/* 友情链接 */
.links-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.links-list a {
    padding: 10px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.links-list a:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    padding: 50px 0 30px;
    margin-top: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
}

.footer-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 4px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.footer-links a {
    padding: 6px 14px;
    border-radius: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

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

.footer-safety p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 4px;
}

.sitemap-entry {
    text-align: center;
    margin-top: 24px;
}

.sitemap-entry a {
    padding: 10px 28px;
    border-radius: 30px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.sitemap-entry a:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* 返回顶部 */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#backToTop:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(26,115,232,0.3);
}

/* 滚动动画通用类 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .section {
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 10px 40px rgba(0,0,0,0.1);
        z-index: 999;
    }

    .nav-menu.open {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 60vh;
    }

    .slide-content {
        padding: 40px 16px;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

    .product-grid,
    .culture-grid,
    .advantages-list,
    .service-grid,
    .solution-list,
    .scenario-grid,
    .case-grid,
    .testimonial-grid,
    .news-grid,
    .article-list,
    .hot-grid,
    .howto-steps {
        grid-template-columns: 1fr;
    }

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

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

    .client-logos {
        gap: 16px;
    }

    .client-placeholder {
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    .search-container {
        flex-direction: column;
        padding: 20px;
    }

    .search-container input {
        width: 100%;
    }

    .search-container button {
        width: 100%;
    }

    .footer-content {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 10px 16px;
    }

    .brand-name {
        font-size: 1.1rem;
    }

    .nav-link {
        font-size: 0.9rem;
        padding: 6px 12px;
    }

    .hero {
        min-height: 50vh;
    }

    .slide-content h1,
    .slide-content h2 {
        font-size: 1.6rem;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .about-stats,
    .data-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }

    .sitemap-links {
        grid-template-columns: 1fr;
    }

    .stat-number,
    .data-number {
        font-size: 2rem;
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 28px;
        font-size: 0.95rem;
    }

    #backToTop {
        width: 44px;
        height: 44px;
        bottom: 20px;
        right: 20px;
    }
}

/* 暗色模式适配 */
[data-theme="dark"] .glass {
    background: var(--glass-bg);
    border-color: var(--glass-border);
}

[data-theme="dark"] .navbar {
    background: var(--glass-bg);
}

[data-theme="dark"] .search-container input {
    background: rgba(255,255,255,0.05);
    color: var(--text);
}

[data-theme="dark"] .search-container button:last-child {
    background: transparent;
    border-color: var(--glass-border);
    color: var(--text);
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #0d47a1, #4a148c, #bf360c);
}

[data-theme="dark"] .btn-primary {
    background: var(--primary);
    color: #fff;
}

[data-theme="dark"] .btn-primary:hover {
    background: var(--primary-dark);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    color: #fff;
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.4);
}

[data-theme="dark"] .stat-number,
[data-theme="dark"] .data-number,
[data-theme="dark"] .section-title {
    background: linear-gradient(135deg, #4a9eff, #ff8a65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 无障碍与打印 */
@media print {
    .header,
    .footer,
    #backToTop,
    .search-modal,
    .slider-controls {
        display: none !important;
    }

    .hero {
        min-height: auto;
        background: #fff !important;
        color: #000 !important;
    }

    .slide-content {
        color: #000 !important;
    }

    .glass {
        background: #fff !important;
        backdrop-filter: none !important;
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
}