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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    overflow-x: hidden;
}

/* 毛玻璃导航栏样式 */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 15px 0;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.glass-nav.scrolled {
    backdrop-filter: blur(15px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 10px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 15px;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    border-radius: 20px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.3);
    font-weight: 600;
}

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

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 250px;
    margin-top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(5px);
    transition: all 0.3s ease;
    z-index: 1001;
}

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

.dropdown-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-link {
    display: block;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.dropdown-link:hover {
    background: rgba(0, 0, 0, 0.05);
    padding-left: 20px;
}

.dropdown-link.active {
    background: rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero区域 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,224L48,213.3C96,203,192,181,288,181.3C384,181,480,203,576,202.7C672,203,768,181,864,181.3C960,181,1056,203,1152,202.7C1248,203,1344,181,1392,170.7L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    animation: wave 20s linear infinite;
}

@keyframes wave {
    0% { background-position: 0 0; }
    100% { background-position: 1440px 0; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 服务区域 */
.services {
    padding: 80px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 20px;
}

.section-title p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: #fff;
    font-size: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #333;
}

.about-text p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 案例展示 */
.cases {
    padding: 80px 0;
    background: #fff;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2rem;
}

.case-content {
    padding: 20px;
}

.case-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #333;
}

.case-content p {
    color: #666;
    line-height: 1.6;
}

/* 联系我们 */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.contact-details {
    list-style: none;
}

.contact-details li {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.contact-details i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    backdrop-filter: blur(5px);
}

/* taocarts产品页面 */
.taocarts-hero {
    padding: 120px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.taocarts-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.taocarts-hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.taocarts-intro,
.taocarts-about,
.taocarts-why,
.taocarts-features,
.taocarts-target,
.taocarts-cta {
    padding: 80px 0;
}

.taocarts-intro {
    background: #f8f9fa;
}

.taocarts-about {
    background: #fff;
}

.taocarts-why {
    background: #f9f9f9;
}

.taocarts-features {
    background: #fff;
}

.taocarts-target {
    background: #f8f9fa;
}

.taocarts-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-card i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 词条页面 */
.keyword-page {
    padding: 120px 0 80px;
    background: #fff;
}

.keyword-content {
    max-width: 800px;
    margin: 0 auto;
}

.keyword-content h1 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #333;
}

.keyword-content p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

.keyword-content h2 {
    font-size: 1.8rem;
    margin: 30px 0 20px;
    color: #333;
}

.keyword-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.keyword-content li {
    margin-bottom: 10px;
    color: #666;
}

/* 页脚 */
.footer {
    background: #333;
    color: #fff;
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
}

.footer-bottom {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        padding: 20px;
        gap: 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        color: #333;
        padding: 15px;
        border-radius: 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-link:hover {
        background: rgba(0, 0, 0, 0.05);
    }

    .menu-toggle {
        display: flex;
    }

    .dropdown-menu {
        position: static;
        margin-top: 0;
        box-shadow: none;
        background: transparent;
        border: none;
    }

    .dropdown-link {
        padding-left: 30px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .about-content,
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .services-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
}

/* 加载动画 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.loading.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}