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

:root {
    --primary: #FF7A50;
    --primary-dark: #E85A30;
    --secondary: #4A90E2;
    --dark: #333333;
    --gray: #777777;
    --light-gray: #F5F5F5;
    --white: #FFFFFF;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background-color: var(--white);
}

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

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-brand a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.nav-brand a:hover,
.nav-brand a.active {
    color: var(--primary);
}

.nav-brand .separator {
    color: var(--gray);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #FF9D7B 100%);
    color: var(--white) !important;
    padding: 12px 28px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 122, 80, 0.3);
    position: relative;
    overflow: hidden;
    border: none;
}

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

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #FF8A5C 100%);
    box-shadow: 0 6px 20px rgba(255, 122, 80, 0.4);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(255, 122, 80, 0.3);
}

/* 面包屑 */
.breadcrumb {
    background: var(--light-gray);
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb a {
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb .separator {
    color: var(--gray);
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

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

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 18px;
}

/* 英雄区域 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f9f9f9 0%, #f0f0f0 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.hero-description {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-image {
    text-align: center;
    display: flex;
    align-items: flex-start;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
}

/* 图片轮播 */
.image-carousel {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    height: 450px;
    display: flex;
    align-items: flex-start;
    padding-top: 15px;
}

.carousel-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
    will-change: transform;
    height: 100%;
}

.carousel-slide {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    min-width: 100%;
    flex-shrink: 0;
    height: 100%;
    align-items: stretch;
}

.carousel-slide img {
    width: 100%;
    height: 420px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    object-fit: contain;
    background: #f5f5f5;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
    transition: var(--transition);
    z-index: 10;
    box-shadow: var(--shadow);
}

.carousel-btn:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: 15px;
}

.carousel-next {
    right: 15px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.carousel-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    padding: 0;
}

.carousel-indicator.active {
    background: var(--primary);
    width: 30px;
    border-radius: 5px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
}

/* 章节标题 */
.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark);
}

/* 功能卡片 */
.features-section {
    padding: 80px 0;
    background: var(--white);
}

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

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), #FF9D7B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 32px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* 支持系统 */
.supported-systems {
    padding: 80px 0;
    background: var(--white);
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.system-item {
    background: var(--white);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

.system-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.system-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), #FF9D7B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 32px;
}

.system-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}

.system-item p {
    font-size: 14px;
    color: var(--gray);
}

/* 服务预览 */
.services-preview {
    padding: 80px 0;
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.service-item {
    background: var(--white);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.service-item i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 15px;
    display: block;
}

.service-item span {
    font-size: 16px;
    font-weight: 500;
    color: var(--dark);
}

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

/* 优势 */
.advantages {
    padding: 80px 0;
    background: var(--white);
}

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

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--light-gray);
    border-radius: 10px;
    transition: var(--transition);
}

.advantage-item:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.advantage-item i {
    font-size: 32px;
    color: var(--primary);
    margin-top: 5px;
}

.advantage-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark);
}

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

/* 价格预览 */
.pricing-preview {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #FF9D7B 100%);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    padding: 50px 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.pricing-header h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--dark);
}

.price-tag {
    margin-bottom: 15px;
}

.old-price {
    font-size: 24px;
    color: var(--gray);
    text-decoration: line-through;
    margin-right: 15px;
}

.current-price {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
}

.price-note {
    color: var(--gray);
    margin-bottom: 30px;
}

.pricing-features ul {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 10px 0;
    color: var(--dark);
}

.pricing-features i {
    color: var(--primary);
    margin-right: 10px;
}

/* 页脚 */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 20px;
}

.footer-section p {
    margin-bottom: 10px;
    color: #ccc;
}

.footer-section i {
    margin-right: 10px;
    color: var(--primary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary) !important;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #ccc;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .nav-logo {
        height: 32px;
    }
    
    .nav-brand {
        gap: 8px;
        font-size: 14px;
    }
    
    .carousel-slide {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .carousel-prev {
        left: 5px;
    }
    
    .carousel-next {
        right: 5px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid,
    .advantages-grid,
    .feature-grid,
    .highlight-grid,
    .systems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-header {
        flex-direction: column;
        text-align: center;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
}