@charset "UTF-8";

/* ========================================
   银川美育音乐舞蹈培训中心 - 现代风格CSS
   ======================================== */

/* CSS变量 - 统一管理颜色和样式 */
:root {
    /* 主色调 - 粉色系 */
    --primary: #ec4899;
    --primary-light: #f472b6;
    --primary-dark: #db2777;
    
    /* 辅助色 */
    --secondary: #f59e0b;
    --secondary-light: #fbbf24;
    
    /* 功能色 */
    --success: #10b981;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* 中性色 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-gradient-1: linear-gradient(135deg, #ec4899 0%, #f472b6 50%, #fb7185 100%);
    --bg-gradient-2: linear-gradient(135deg, #f5f5f5 0%, #e5e5e5 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 字体 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Poppins', var(--font-sans);
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* 重置样式 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ========================================
   618狂欢节活动提示 - 全屏滚动方块
   ======================================== */
.floating-sale-box {
    position: fixed;
    top: -100px;
    left: -200px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, #ff4d4f 0%, #ff7a45 50%, #ffa940 100%);
    border-radius: 16px;
    box-shadow: 0 15px 40px rgba(255, 77, 79, 0.5);
    animation: fullPageDiagonal 100s linear infinite;
    transform: rotate(45deg);
    cursor: pointer;
    text-decoration: none;
}

.floating-sale-box .sale-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    transform: rotate(-45deg);
    text-align: center;
}

.floating-sale-box .sale-icon {
    font-size: 2.5rem;
    animation: bounce 1.2s ease-in-out infinite;
}

.floating-sale-box .sale-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 800;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    line-height: 1.2;
}

.floating-sale-box .sale-discount {
    font-size: 0.75rem;
    font-weight: 600;
    color: #ff4d4f;
    background: #fff;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    white-space: nowrap;
}

/* 全屏对角滚动动画 - 左上→右下→右上→左下 */
@keyframes fullPageDiagonal {
    0% {
        top: -160px;
        left: -160px;
        opacity: 0;
    }
    5% {
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    45% {
        top: calc(100vh + 20px);
        left: calc(100vw + 20px);
        opacity: 1;
    }
    50% {
        top: calc(100vh + 160px);
        left: calc(100vw + 160px);
        opacity: 0;
    }
    55% {
        top: -160px;
        left: calc(100vw - 160px);
        opacity: 0;
    }
    60% {
        opacity: 1;
    }
    95% {
        top: calc(100vh + 20px);
        left: -160px;
        opacity: 1;
    }
    100% {
        top: calc(100vh + 160px);
        left: -160px;
        opacity: 0;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-6px);
    }
}

/* ========================================
   头部导航
   ======================================== */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    text-decoration: none;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 60%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* ========================================
   Hero 轮播区
   ======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.85) 0%, rgba(244, 114, 182, 0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: var(--spacing-3xl);
}

.hero-content h1 {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

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

/* 按钮 */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: white;
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 1s ease 0.4s backwards;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.cta-button.primary {
    background: var(--bg-gradient-1);
    color: white;
}

.cta-button.secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.cta-button.secondary:hover {
    background: var(--gray-300);
}

/* ========================================
   通用区块样式
   ======================================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.section-title p {
    color: var(--gray-500);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-title .highlight {
    color: var(--primary);
}

/* ========================================
   环境展示
   ======================================== */
.environment {
    background: var(--bg-primary);
}

.environment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.environment-item {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    cursor: pointer;
}

.environment-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.environment-item img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: var(--transition);
}

.environment-item:hover img {
    transform: scale(1.1);
}

.environment-item .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-xl);
    color: white;
}

.environment-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.environment-item p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ========================================
   关于我们
   ======================================== */
.about {
    background: var(--bg-primary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-full);
    text-decoration: none;
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.social-link.douyin {
    background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%);
}

.social-link.kuaishou {
    background: linear-gradient(135deg, #ff5000 0%, #ff8c00 100%);
}

.social-link.wechat {
    background: linear-gradient(135deg, #07c160 0%, #06ad56 100%);
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 4px solid var(--primary);
    border-radius: var(--radius-xl);
    z-index: -1;
}

/* ========================================
   课程展示
   ======================================== */
.courses {
    background: var(--bg-primary);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.course-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.course-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.course-card-content {
    padding: var(--spacing-xl);
}

.course-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.course-card .age-range {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.course-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.course-card .features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.feature-tag {
    background: var(--gray-100);
    color: var(--gray-600);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ========================================
   育儿/艺术
   ======================================== */
.parenting {
    background: var(--bg-primary);
}

.parenting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.article-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.article-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-card-content {
    padding: var(--spacing-xl);
}

.article-card .category {
    display: inline-block;
    background: var(--bg-gradient-1);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.article-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.article-card .read-more {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition);
}

.article-card .read-more:hover {
    gap: var(--spacing-sm);
}

/* ========================================
   文章详情
   ======================================== */
.article-detail {
    background: white;
    padding: var(--spacing-3xl) 0;
}

.article-detail-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.article-detail-header {
    background: var(--bg-gradient-1);
    padding: var(--spacing-3xl);
    color: white;
}

.article-detail-header .category {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-md);
}

.article-detail-header h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.article-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.9rem;
    opacity: 0.9;
}

.article-detail-body {
    padding: var(--spacing-3xl);
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--gray-700);
}

.article-detail-body img {
    width: 100%;
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.article-detail-body h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin: var(--spacing-2xl) 0 var(--spacing-md);
}

.article-detail-body h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.article-detail-body p {
    margin-bottom: var(--spacing-lg);
}

.article-detail-body ul,
.article-detail-body ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.article-detail-body li {
    margin-bottom: var(--spacing-sm);
}

.article-detail-footer {
    padding: var(--spacing-xl) var(--spacing-3xl);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.article-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.article-tag {
    background: var(--gray-100);
    color: var(--gray-600);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
}

/* ========================================
   联系表单
   ======================================== */
.contact {
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item .icon {
    width: 56px;
    height: 56px;
    background: var(--bg-gradient-1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item .text h4 {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.contact-item .text p {
    color: var(--gray-600);
}

.contact-form {
    background: white;
    padding: var(--spacing-3xl);
    border-radius: var(--radius-2xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--gray-100);
}

.contact-form-wrapper h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--gray-900);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-100);
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
    color: var(--gray-900);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.15), 0 4px 20px rgba(236, 72, 153, 0.1);
    transform: translateY(-1px);
}

.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover {
    border-color: var(--gray-300);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.6;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 18px;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    background: var(--bg-gradient-1);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-xl);
    font-size: 1.15rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(236, 72, 153, 0.35);
}

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

.submit-btn:active {
    transform: translateY(-1px);
}

/* 手机号验证错误样式 */
.form-group input:invalid:not(:placeholder-shown) {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.05);
}

.form-group input:invalid:not(:placeholder-shown) + .error-message {
    display: block;
}

.error-message {
    display: none;
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

/* ========================================
   面包屑导航
   ======================================== */
.breadcrumb {
    background: white;
    padding: var(--spacing-md) 0;
    margin-top: 70px;
    border-bottom: 1px solid var(--gray-100);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--gray-600);
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb .separator {
    color: var(--gray-400);
}

.breadcrumb .current {
    color: var(--gray-900);
    font-weight: 500;
}

/* ========================================
   页脚
   ======================================== */
footer {
    background: var(--gray-900);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section p,
.footer-section a {
    color: var(--gray-400);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.footer-section a {
    display: block;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section:nth-child(4) {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.footer-section:nth-child(4) h3 {
    grid-column: 1 / -1;
    margin-bottom: var(--spacing-sm);
}

.footer-section a:hover {
    color: white;
    padding-left: var(--spacing-sm);
}

/* SEO链接三列布局 */
.footer-seo-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.footer-seo-links a {
    margin-bottom: 0;
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.85rem;
}

/* SEO长尾关键词链接 */
.seo-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.seo-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.seo-links a:hover {
    color: white;
    text-decoration: none;
    padding-left: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--gray-500);
    text-decoration: none;
}

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

/* ========================================
   加载动画
   ======================================== */
.loading {
    display: none;
    text-align: center;
    padding: var(--spacing-xl);
}

.loading.active {
    display: block;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   404错误页面
   ======================================== */
.error-page {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.error-content {
    text-align: center;
    max-width: 600px;
}

.error-image {
    max-width: 100%;
    height: auto;
    margin-bottom: var(--spacing-lg);
    margin-top: 50px;
    border-radius: 16px;
}

.error-icon {
    font-size: 5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.error-title {
    font-size: 8rem;
    font-weight: 800;
    font-family: 'Poppins', sans-serif;
    background: var(--bg-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.error-message {
    font-size: 2rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
}

.error-description {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.error-actions .cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-image::before {
        display: none;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links a {
        padding: var(--spacing-md);
        background: var(--gray-50);
        border-radius: var(--radius-lg);
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .hero {
        height: 500px;
        min-height: auto;
    }
    
    .hero-content {
        padding: var(--spacing-xl);
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .environment-grid,
    .courses-grid,
    .parenting-grid {
        grid-template-columns: 1fr;
    }
    
    .article-detail-header,
    .article-detail-body,
    .article-detail-footer {
        padding: var(--spacing-xl);
    }
    
    .article-meta {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
    
    .social-links {
        flex-direction: column;
    }
    
    .social-link {
        justify-content: center;
    }
    
    .error-title {
        font-size: 5rem;
    }
    
    .error-icon {
        font-size: 3.5rem;
    }
    
    .error-image {
        margin-bottom: var(--spacing-md);
        max-width: 90%;
    }
    
    .error-message {
        font-size: 1.5rem;
    }
    
    .error-actions {
        flex-direction: column;
    }
    
    .error-actions .cta-button {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   文章详情页 - 新布局样式
   ======================================== */
.article-detail {
    padding: var(--spacing-2xl) 0;
}

.article-detail .container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-2xl);
    align-items: flex-start;
}

/* 文章卡片包装 */
.article-card-wrapper {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* 文章头部区域 */
.article-hero {
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
    background: white;
}

.article-hero-content {
    position: relative;
    z-index: 1;
}

.article-category {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.article-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
}

.article-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.article-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* 文章封面图 */
.article-cover {
    position: relative;
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.article-cover:hover img {
    transform: scale(1.02);
}

/* 文章内容区域 */
.article-body {
    padding: var(--spacing-2xl);
}

.article-body p {
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    color: var(--gray-700);
}

.article-body h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-light);
}

.article-body h2 i {
    color: var(--primary);
    font-size: 1.25rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--spacing-xl);
    padding-left: var(--spacing-xl);
}

.article-body li {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    color: var(--gray-700);
}

.article-body strong {
    color: var(--gray-900);
    font-weight: 600;
}

/* 文章引用样式 */
.article-quote {
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    position: relative;
}

.article-quote i {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    font-size: 2rem;
    color: var(--primary);
    opacity: 0.3;
}

.article-quote p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--gray-800);
    margin-bottom: 0;
    padding-left: var(--spacing-2xl);
}

/* 文章标签 */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-2xl) var(--spacing-2xl);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--gray-100);
    color: var(--gray-600);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    transition: var(--transition);
}

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

.tag i {
    font-size: 0.75rem;
}

/* 文章导航 */
/* 上下篇导航 */
.article-nav-links {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--gray-200);
    gap: var(--spacing-xl);
}

.nav-link-item {
    flex: 1;
}

.nav-link-item:first-child {
    text-align: left;
}

.nav-link-item:last-child {
    text-align: right;
}

.nav-link-item .nav-label {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.nav-link-item .nav-title {
    display: block;
    color: var(--gray-800);
    font-size: 0.95rem;
    line-height: 1.4;
    text-decoration: none;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nav-link-item .nav-title:hover {
    color: var(--primary);
}

.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.article-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.back-btn {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

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

/* 文章分享 */
.article-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--gray-600);
    font-size: 0.9rem;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    transition: var(--transition);
}

.share-btn:hover {
    transform: translateY(-3px);
}

.share-btn.wechat { background: #07c160; }
.share-btn.qq { background: #1296db; }
.share-btn.weibo { background: #e6162d; }

/* 侧边栏 */
.article-sidebar {
    position: sticky;
    top: var(--spacing-2xl);
}

.sidebar-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.sidebar-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-light);
}

.sidebar-title i {
    color: var(--primary);
}

/* 相关文章 */
.related-articles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.related-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition);
    background: var(--gray-50);
}

.related-item:hover {
    background: var(--bg-secondary);
    transform: translateX(5px);
}

.related-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
    flex-shrink: 0;
}

.related-item-content {
    flex: 1;
    min-width: 0;
}

.related-item-content h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-item-content span {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.related-item-content span i {
    margin-right: var(--spacing-xs);
}

/* 联系卡片 */
.contact-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.sidebar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-gradient-1);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 文章详情响应式 */
@media (max-width: 1024px) {
    .article-detail .container {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-xl);
    }
    
    .sidebar-card {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-hero {
        padding: var(--spacing-xl);
    }
    
    .article-body {
        padding: var(--spacing-xl);
    }
    
    .article-nav {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .article-share {
        justify-content: center;
    }
    
    .article-cover img {
        height: 250px;
    }
    
    .article-body h2 {
        font-size: 1.25rem;
    }
}

/* ========================================
   分页样式
   ======================================== */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--gray-100);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

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

.pagination-btn.disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    opacity: 0.6;
}

.pagination-btn.disabled:hover {
    background: var(--gray-300);
    transform: none;
    box-shadow: none;
}

.pagination-info {
    font-size: 1rem;
    color: var(--gray-600);
    font-weight: 500;
}

.pagination-info span {
    color: var(--primary);
    font-weight: 700;
}

/* 移动端分页样式 */
@media (max-width: 768px) {
    .pagination {
        flex-wrap: wrap;
        gap: var(--spacing-md);
        justify-content: center;
    }
    
    .pagination-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }
}