/* ============================================
   小鹿教育企业官网 - 全新CSS样式
   深圳市小鹿教育传媒有限公司
   ============================================ */

/* CSS变量定义 - 绿白黑主题 */
:root {
    /* 主色调 - 清新的绿色 */
    --primary-color: #22C55E;
    --primary-dark: #16A34A;
    --primary-light: #4ADE80;
    --primary-lighter: #86EFAC;
    
    /* 辅助绿色 */
    --green-soft: #BBF7D0;
    --green-pale: #DCFCE7;
    --green-dark: #15803D;
    
    /* 文字颜色 - 黑白灰 */
    --text-dark: #0F172A;
    --text-gray: #475569;
    --text-light: #94A3B8;
    --text-muted: #CBD5E1;
    
    /* 背景颜色 - 纯白和淡绿 */
    --bg-white: #FFFFFF;
    --bg-light: #F0FDF4;
    --bg-cream: #F8FAFC;
    --bg-mint: #ECFDF5;
    --bg-gray: #F1F5F9;
    
    --border-color: #BBF7D0;
    --border-light: #E2E8F0;
    
    /* 渐变 - 绿色系 */
    --gradient-primary: linear-gradient(135deg, #22C55E 0%, #4ADE80 100%);
    --gradient-dark: linear-gradient(135deg, #16A34A 0%, #22C55E 100%);
    --gradient-light: linear-gradient(135deg, #4ADE80 0%, #86EFAC 100%);
    --gradient-hero: linear-gradient(135deg, #FFFFFF 0%, #F0FDF4 50%, #DCFCE7 100%);
    --gradient-soft: linear-gradient(135deg, #F0FDF4 0%, #FFFFFF 100%);
    
    /* 阴影 - 绿色调阴影 */
    --shadow-sm: 0 2px 8px rgba(34, 197, 94, 0.08);
    --shadow-md: 0 4px 16px rgba(34, 197, 94, 0.12);
    --shadow-lg: 0 8px 24px rgba(34, 197, 94, 0.16);
    --shadow-xl: 0 12px 32px rgba(34, 197, 94, 0.2);
    --shadow-black: 0 4px 20px rgba(0, 0, 0, 0.1);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-sm {
    max-width: 960px;
}

.container-lg {
    max-width: 1440px;
}

/* 通用按钮样式 - 圆润可爱风格 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.btn::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;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.45);
}

.btn-secondary {
    background: var(--text-dark);
    color: white;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.25);
}

.btn-secondary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.35);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.btn-black {
    background: var(--text-dark);
    color: white;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.btn-black:hover {
    background: #1e293b;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.btn-white {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    background: var(--bg-white);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

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

/* 标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-title .subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(91, 164, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: 700;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-gray);
}

.lang-switcher a {
    padding: 4px 8px;
    border-radius: 4px;
    transition: var(--transition);
}

.lang-switcher a.active,
.lang-switcher a:hover {
    background: var(--bg-gray);
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* Hero区域 - 清新柔和风格 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 15% 25%, rgba(34, 197, 94, 0.1) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(34, 197, 94, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 50% 50%, rgba(15, 23, 42, 0.03) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.hero-text h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 500px;
}

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

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item h3 {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 14px;
    color: var(--text-gray);
    margin: 0;
}

.hero-image {
    position: relative;
}

.hero-image-main {
    position: relative;
    z-index: 1;
}

.hero-image-main img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
}

.hero-shape-1 {
    width: 300px;
    height: 300px;
    background: var(--green-soft);
    top: -50px;
    right: -50px;
    opacity: 0.6;
}

.hero-shape-2 {
    width: 200px;
    height: 200px;
    background: var(--primary-light);
    bottom: 50px;
    left: -50px;
    opacity: 0.5;
}

.hero-shape-3 {
    width: 150px;
    height: 150px;
    background: var(--text-light);
    top: 40%;
    right: 20%;
    opacity: 0.2;
}

/* 服务区域 */
.services {
    padding: 120px 0;
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-white);
    border: 3px solid transparent;
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.service-card:hover::before {
    opacity: 0.03;
}

.service-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 24px;
    background: var(--bg-mint);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
}

.service-card:hover .service-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.4);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 产品区域 */
.products {
    padding: 120px 0;
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 3px solid transparent;
}

.product-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--green-soft);
}

.product-image {
    height: 220px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%);
}

.product-image img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    position: relative;
    z-index: 1;
}

.product-content {
    padding: 32px;
}

.product-tag {
    display: inline-block;
    padding: 8px 18px;
    background: var(--bg-mint);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    border: 2px solid var(--border-color);
}

.product-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.product-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-features span {
    padding: 8px 16px;
    background: var(--bg-mint);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
}

/* 解决方案区域 */
.solutions {
    padding: 120px 0;
    background: var(--bg-white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.solution-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 0;
    background: var(--bg-white);
    border: 3px solid transparent;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.solution-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
    transform: translateY(-8px) scale(1.01);
}

.solution-image {
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
}

.solution-image img {
    width: 60px;
    height: 60px;
    filter: brightness(0) invert(1);
}

.solution-content {
    padding: 32px;
}

.solution-content h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.solution-content p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 15px;
}

.solution-link:hover {
    gap: 12px;
}

/* 关于我们区域 */
.about {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-image-float {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-xl);
}

.about-image-float h4 {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.about-image-float p {
    font-size: 14px;
    color: var(--text-gray);
}

.about-text h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.about-text > p {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.about-feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.about-feature h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.about-feature p {
    font-size: 14px;
    color: var(--text-gray);
    margin: 0;
}

/* 客户评价区域 */
.testimonials {
    padding: 120px 0;
    background: var(--bg-white);
}

.testimonials-slider {
    position: relative;
}

.testimonial-card {
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    padding: 48px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 24px;
    object-fit: cover;
    border: 4px solid var(--bg-white);
    box-shadow: var(--shadow-md);
}

.testimonial-text {
    font-size: 20px;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.testimonial-author p {
    font-size: 14px;
    color: var(--text-gray);
}

/* CTA区域 */
.cta {
    padding: 100px 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* 首页Hero增强样式 */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-light);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 15s infinite;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 30%; top: 60%; animation-delay: 3s; }
.particle:nth-child(3) { left: 50%; top: 30%; animation-delay: 6s; }
.particle:nth-child(4) { left: 70%; top: 70%; animation-delay: 9s; }
.particle:nth-child(5) { left: 90%; top: 40%; animation-delay: 12s; }

@keyframes float-particle {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.3; }
    50% { transform: translateY(-100px) rotate(180deg); opacity: 0.6; }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-mint);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--primary-dark);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-badge i {
    color: var(--primary-color);
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin: 24px 0;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-gray);
}

.hero-feature-item i {
    color: var(--primary-color);
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 2px solid var(--border-light);
    flex-wrap: nowrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 180px;
    flex-shrink: 0;
}

.stat-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-mint);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
}

.stat-info h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-info p {
    font-size: 14px;
    color: var(--text-gray);
    margin: 0;
}

.hero-trust {
    margin-top: 32px;
}

.hero-trust p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.trust-logos {
    display: flex;
    gap: 16px;
}

.trust-logo {
    width: 48px;
    height: 48px;
    background: var(--bg-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
}

.hero-floating-card {
    position: absolute;
    background: var(--bg-white);
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--text-dark);
}

.hero-floating-card i {
    font-size: 24px;
    color: var(--primary-color);
}

.hero-floating-card.card-1 {
    top: 20px;
    right: -20px;
    animation: float 4s ease-in-out infinite;
}

.hero-floating-card.card-2 {
    bottom: 40px;
    left: -30px;
    animation: float 4s ease-in-out infinite 1s;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 14px;
    transition: var(--transition);
}

.scroll-down i {
    font-size: 20px;
    animation: bounce 2s infinite;
}

.scroll-down:hover {
    color: var(--primary-color);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* 页面头部增强样式 */
.page-header {
    position: relative;
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(34, 197, 94, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(34, 197, 94, 0.08) 0%, transparent 40%);
}

.header-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.header-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.4;
}

.header-shape.shape-1 {
    width: 200px;
    height: 200px;
    background: var(--primary-light);
    top: -50px;
    right: 10%;
}

.header-shape.shape-2 {
    width: 150px;
    height: 150px;
    background: var(--green-soft);
    bottom: -30px;
    left: 15%;
}

.header-shape.shape-3 {
    width: 100px;
    height: 100px;
    background: var(--primary-lighter);
    top: 30%;
    right: 25%;
    opacity: 0.3;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--primary-dark);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.header-badge i {
    color: var(--primary-color);
}

.header-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 32px;
}

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

.header-stat .stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.header-stat .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

/* 服务页面头部 */
.service-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.service-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-full);
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

.service-tag i {
    color: var(--primary-color);
}

/* 产品页面头部 */
.product-quick-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 24px;
}

.quick-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-full);
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.quick-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    color: var(--primary-color);
}

.quick-link i {
    font-size: 18px;
}

/* 解决方案页面头部 */
.solution-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 24px;
}

.solution-cat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    min-width: 100px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.solution-cat:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.solution-cat i {
    font-size: 28px;
    color: var(--primary-color);
}

.solution-cat span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

/* 联系页面头部 */
.contact-methods-header {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
    margin-top: 24px;
}

.contact-method-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-full);
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.contact-method-item i {
    font-size: 18px;
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 24px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-4px);
}

.footer-links h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 8px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* 内页通用样式 */
.page-header {
    padding: 160px 0 80px;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 80px 0;
}

/* 关于我们页面 */
.about-page-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.about-page-intro.reverse {
    direction: rtl;
}

.about-page-intro.reverse > * {
    direction: ltr;
}

.about-page-intro h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.about-page-intro p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 80px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.value-card:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.value-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 28px;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.value-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 团队展示 */
.team-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    transition: var(--transition);
}

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

.team-avatar {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.team-info {
    padding: 24px;
}

.team-info h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.team-info p {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

/* 产品详情页 */
.product-detail {
    padding: 80px 0;
}

.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.product-hero-image {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.product-hero-image img {
    max-width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.2));
}

.product-hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.product-hero-content > p {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 32px;
}

.product-features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.product-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.product-feature-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    flex-shrink: 0;
}

.product-feature-item span {
    font-size: 15px;
    color: var(--text-dark);
}

/* 联系页面 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.contact-method:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
}

.contact-method-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-method h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.contact-method p {
    font-size: 15px;
    color: var(--text-gray);
}

.contact-form {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 90, 245, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 32px;
    }
    
    .stat-item {
        min-width: 160px;
    }
    
    .hero-image {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-image-float {
        display: none;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-card {
        grid-template-columns: 1fr;
    }
    
    .solution-image {
        height: 160px;
    }
    
    .about-values {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-hero {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-page-intro,
    .about-page-intro.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .stat-item {
        min-width: 140px;
        flex: 1 1 45%;
    }
    
    .stat-info h3 {
        font-size: 28px;
    }
    
    .product-features-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-text h1 {
        font-size: 28px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .btn-lg {
        padding: 14px 28px;
        font-size: 16px;
    }
}