/* 全局样式 - 横版布局 */

:root {
    /* 腾讯云风格配色 */
    --primary-color: #0052d9;      /* 腾讯云主蓝色 */
    --primary-dark: #0043b3;
    --primary-light: #1677ff;
    --accent-color: #ff6a00;       /* 腾讯云橙色 */
    --success-color: #00a870;      /* 绿色强调 */
    --warning-color: #ff9500;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --text-white: #ffffff;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding-top: 80px; /* 为固定导航栏留出空间 */
}

/* 主容器 - 横版布局 */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 40px;
}

/* 页面标题区域 */
.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 60px 40px;
    border-radius: var(--border-radius-xl);
    margin-bottom: 40px;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    animation: heroAnimation 30s linear infinite;
}

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

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.page-hero p {
    font-size: 1.3rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* 横向卡片布局 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.card {
    background: var(--bg-white);
    border-radius: var(--border-radius-xl);
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.card-description {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 横向特性展示 */
.features-horizontal {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.feature-item {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: var(--bg-white);
    padding: 25px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(67, 56, 202, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 56, 202, 0.4);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-color), #fb923c);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
}

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

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .main-container {
        padding: 25px 30px;
    }
    
    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .main-container {
        padding: 20px;
    }
    
    .page-hero {
        padding: 40px 25px;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
    
    .page-hero p {
        font-size: 1.1rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .features-horizontal {
        gap: 15px;
    }
    
    .feature-item {
        flex: 0 0 280px;
    }
}

@media (max-width: 480px) {
    .page-hero h1 {
        font-size: 1.75rem;
    }
    
    .page-hero p {
        font-size: 1rem;
    }
}