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

:root {
    /* 企业稳重专业配色系统 - 体现稳重、可靠、专业的品牌精神 */
    /* 主色：深蓝 - 代表专业、信任、稳定 */
    --primary-color: #1e3a8a;
    --primary-gradient: linear-gradient(135deg, #1e3a8a 0%, #1e40af 40%, #2563eb 100%);
    --primary-gradient-alt: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    --primary-gradient-strong: linear-gradient(135deg, #1e293b 0%, #1e3a8a 25%, #1e40af 50%, #2563eb 75%, #3b82f6 100%);
    
    /* 强调色：古铜金 - 代表品质、专业、高端 */
    --accent-color: #d97706;
    --accent-gradient: linear-gradient(135deg, #b45309 0%, #d97706 50%, #f59e0b 100%);
    --accent-glow: rgba(30, 58, 138, 0.3);
    
    /* 辅助色：深灰 - 代表稳重、成熟、权威 */
    --secondary-color: #1e293b;
    --tertiary-color: #334155;
    
    /* 文字颜色 - 专业深色系 */
    --text-dark: #0f172a;
    --text-medium: #1e293b;
    --text-light: #475569;
    --text-lighter: #64748b;
    
    /* 背景颜色 - 干净专业的中性色 */
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-gradient: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* 边框和分割线 - 专业的细线 */
    --border-color: #e2e8f0;
    --border-light: rgba(226, 232, 240, 0.8);
    
    /* 阴影系统 - 专业稳重的层次感 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 40px 80px -20px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(30, 58, 138, 0.25);
    --shadow-colored: 0 10px 30px rgba(30, 58, 138, 0.15);
    --shadow-glow-strong: 0 0 30px rgba(30, 58, 138, 0.3);
    
    /* 动画时长 */
    --transition-fast: 0.2s;
    --transition-base: 0.4s;
    --transition-slow: 0.7s;
    
    /* 圆角 */
    --radius-sm: 0.5rem;
    --radius: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--bg-gradient);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* 添加震撼的背景动画效果 - 大气磅礴 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 15% 40%, rgba(30, 58, 138, 0.04) 0%, transparent 60%),
        radial-gradient(circle at 85% 70%, rgba(30, 64, 175, 0.03) 0%, transparent 60%),
        radial-gradient(circle at 50% 20%, rgba(37, 99, 235, 0.02) 0%, transparent 60%);
    animation: backgroundFloat 40s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 60% 30%, rgba(217, 119, 6, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 30% 80%, rgba(30, 58, 138, 0.02) 0%, transparent 50%);
    animation: backgroundFloat 45s ease-in-out infinite reverse;
    pointer-events: none;
    z-index: 0;
}

@keyframes backgroundFloat {
    0%, 100% { 
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    33% { 
        transform: translate(30px, -30px) scale(1.05);
        opacity: 0.9;
    }
    66% { 
        transform: translate(-20px, 20px) scale(0.95);
        opacity: 0.95;
    }
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 48px;
    position: relative;
    z-index: 1;
}

/* 导航栏 - 增强的玻璃态效果 */
.navbar {
    background: var(--bg-glass);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all var(--transition-base);
}

.navbar:hover {
    box-shadow: var(--shadow-lg), 0 0 30px rgba(30, 58, 138, 0.06);
    border-bottom-color: rgba(30, 58, 138, 0.1);
}

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

.logo h1 {
    font-size: 2.75rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    transition: all var(--transition-base);
    filter: drop-shadow(0 2px 4px rgba(30, 58, 138, 0.1));
}

.logo:hover h1 {
    transform: scale(1.08);
    filter: drop-shadow(0 4px 8px rgba(30, 58, 138, 0.12));
}

.tagline {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: 600;
    letter-spacing: 0.03em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    font-size: 1.0625rem;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.nav-menu a:hover {
    color: var(--primary-color);
    background: rgba(30, 58, 138, 0.06);
    transform: translateY(-2px);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(30, 58, 138, 0.08);
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.1);
}

/* 语言切换器 - 现代化按钮组 */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: auto;
    padding-left: 2rem;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.5);
    padding: 0.25rem;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-medium);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
    font-family: inherit;
    position: relative;
}

.lang-btn:hover {
    color: var(--primary-color);
    background: rgba(30, 58, 138, 0.06);
    transform: translateY(-1px);
}

.lang-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

/* 响应式：移动端语言切换器 */
@media (max-width: 768px) {
    .language-switcher {
        margin-left: 0;
        padding-left: 0;
        margin-top: 1rem;
        width: 100%;
        justify-content: center;
    }
    
    .navbar .container {
        flex-direction: column;
    }
}

/* 英雄区 - 企业稳重专业风格 */
.hero {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 40%, #ffffff 100%);
    position: relative;
    color: var(--text-dark);
    padding: 15rem 0 12rem;
    text-align: center;
    overflow: hidden;
    min-height: 95vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(30, 58, 138, 0.06) 0%, transparent 55%),
        radial-gradient(circle at 75% 75%, rgba(30, 64, 175, 0.05) 0%, transparent 55%),
        radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.04) 0%, transparent 60%);
    animation: float 40s ease-in-out infinite;
    pointer-events: none;
    opacity: 0.6;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 60% 40%, rgba(217, 119, 6, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(30, 58, 138, 0.03) 0%, transparent 50%);
    animation: float 45s ease-in-out infinite reverse;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

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

.hero-title {
    font-size: clamp(3.5rem, 9vw, 7rem);
    font-weight: 900;
    margin-bottom: 3rem;
    line-height: 1.05;
    letter-spacing: -0.05em;
    animation: fadeInUp 1s ease-out;
    transform: translateZ(0);
    /* 使用专业深蓝渐变，体现稳重 */
    background: var(--primary-gradient-strong);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .subtitle {
    font-size: clamp(1.75rem, 5vw, 3.25rem);
    font-weight: 600;
    display: block;
    margin-top: 2rem;
    animation: fadeInUp 1s ease-out 0.3s both;
    color: var(--text-medium);
}

.hero-description {
    font-size: clamp(1.25rem, 3vw, 1.875rem);
    margin-bottom: 4.5rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    line-height: 2;
    animation: fadeInUp 1s ease-out 0.5s both;
    font-weight: 400;
    color: var(--text-dark);
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

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

/* 按钮样式 - 现代化交互效果 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.125rem 2.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-colored), 0 0 20px rgba(30, 58, 138, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-strong);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 价值主张区 */
.value-proposition {
    padding: 10rem 0;
    background: var(--bg-light);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: clamp(3rem, 6vw, 4.5rem);
    margin-bottom: 6rem;
    color: var(--text-dark);
    font-weight: 900;
    letter-spacing: -0.04em;
    position: relative;
    display: inline-block;
    width: 100%;
    line-height: 1.15;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 6px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 16px rgba(30, 58, 138, 0.2);
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 3rem;
}

.value-card,
.tech-card,
.team-role,
.solution-case,
.case-card {
    background: var(--bg-white);
    padding: 4.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.value-card::before,
.tech-card::before,
.team-role::before,
.solution-case::before,
.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.value-card:hover,
.tech-card:hover,
.team-role:hover,
.solution-case:hover,
.case-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: var(--shadow-2xl), var(--shadow-colored), var(--shadow-glow);
    border-color: rgba(30, 58, 138, 0.15);
}

.value-card:hover::before,
.tech-card:hover::before,
.team-role:hover::before,
.solution-case:hover::before,
.case-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 5.5rem;
    margin-bottom: 2.5rem;
    display: inline-block;
    transition: transform var(--transition-base);
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.15));
}

.value-card:hover .card-icon {
    transform: scale(1.15) rotate(8deg);
    filter: drop-shadow(0 12px 24px rgba(30, 58, 138, 0.15));
}

.value-card h3 {
    background: var(--primary-gradient-strong);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    font-size: 1.875rem;
    font-weight: 900;
    line-height: 1.3;
}

.card-description {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 0.9375rem;
}

.card-poetry {
    color: var(--accent-color);
    font-style: italic;
    font-weight: 600;
    border-left: 3px solid;
    border-image: var(--accent-gradient) 1;
    padding-left: 1.25rem;
    margin-top: 1.5rem;
    font-size: 0.9375rem;
}

/* 数据展示 - 企业稳重风格 */
.stats {
    padding: 8rem 0;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%);
    color: var(--text-dark);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(30, 58, 138, 0.05) 0%, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(30, 64, 175, 0.04) 0%, transparent 60%);
    animation: float 35s ease-in-out infinite;
    pointer-events: none;
}

.stats::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 60% 40%, rgba(217, 119, 6, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(30, 58, 138, 0.03) 0%, transparent 50%);
    animation: float 40s ease-in-out infinite reverse;
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.stat-item {
    padding: 3rem 2rem;
    background: var(--bg-white);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    box-shadow: var(--shadow);
}

.stat-item:hover {
    transform: translateY(-8px) scale(1.05);
    background: var(--bg-white);
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    border-color: var(--border-light);
}

.stat-number {
    font-size: clamp(3.5rem, 7vw, 5.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--primary-gradient-strong);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.stat-label {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
}

.stat-poetry {
    font-size: 0.875rem;
    color: var(--text-medium);
    font-style: italic;
    font-weight: 500;
}

/* 服务预览 */
.services-preview {
    padding: 8rem 0;
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-item {
    padding: 3.5rem;
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.service-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-2xl), var(--shadow-colored);
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(30, 58, 138, 0.15);
}

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

.service-item > * {
    position: relative;
    z-index: 1;
}

.service-item h3 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
    font-size: 1.375rem;
    font-weight: 700;
}

.service-item p {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.link-arrow {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow::after {
    content: '→';
    transition: transform var(--transition-base);
}

.link-arrow:hover {
    color: var(--secondary-color);
    gap: 0.75rem;
}

.link-arrow:hover::after {
    transform: translateX(4px);
}

/* 页面标题 - 温暖活力风格 */
.page-header {
    background: linear-gradient(180deg, #ffffff 0%, #fef9f3 40%, #ffffff 100%);
    color: var(--text-dark);
    padding: 12rem 0 10rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(251, 191, 36, 0.15) 0%, transparent 55%),
        radial-gradient(circle at 75% 75%, rgba(30, 64, 175, 0.05) 0%, transparent 55%),
        radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.04) 0%, transparent 60%);
    animation: float 30s ease-in-out infinite;
    pointer-events: none;
    opacity: 0.8;
}

.page-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 60% 40%, rgba(217, 119, 6, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(30, 58, 138, 0.03) 0%, transparent 50%);
    animation: float 35s ease-in-out infinite reverse;
    pointer-events: none;
    opacity: 0.7;
}

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

.page-header h1 {
    font-size: clamp(3.5rem, 8vw, 6rem);
    margin-bottom: 2.5rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    animation: fadeInUp 1s ease-out;
    color: var(--text-dark);
    line-height: 1.05;
}

.page-header p {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 600;
    animation: fadeInUp 1s ease-out 0.3s both;
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto;
    color: var(--text-medium);
}

/* 产品服务页面 */
.product-section {
    padding: 6rem 0;
}

.product-section:nth-child(even) {
    background: var(--bg-light);
}

.section-intro {
    text-align: center;
    margin-bottom: 4.5rem;
}

.section-intro h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.intro-poetry {
    font-size: 1.375rem;
    color: var(--text-medium);
    font-style: italic;
    max-width: 900px;
    margin: 2rem auto 0;
    line-height: 2;
    font-weight: 400;
}

.product-categories {
    margin-bottom: 3rem;
}

.product-categories h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border-left: 5px solid;
    border-image: var(--primary-gradient) 1;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(30, 41, 59, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.category-card:hover {
    transform: translateY(-5px) translateX(5px);
    box-shadow: var(--shadow-xl);
    border-left-width: 6px;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card h4 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.tech-specs {
    margin-bottom: 1rem;
}

.tech-specs p {
    font-size: 0.875rem;
    color: var(--text-medium);
    margin-bottom: 0.5rem;
}

.metaphor {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 600;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 2px solid;
    border-image: var(--primary-gradient) 1;
    font-size: 0.9375rem;
}

/* 服务类型卡片 */
.service-types {
    display: grid;
    gap: 2rem;
}

.service-type-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.service-type-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-type-card h3 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.service-content {
    display: grid;
    gap: 1rem;
}

.practical h4 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.practical ul {
    list-style: none;
    padding-left: 0;
}

.practical li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-medium);
}

.practical li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.service-content .poetry {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 500;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 2px solid var(--border-color);
}

/* 开发理念 */
.development-philosophy {
    margin-top: 3rem;
}

.development-philosophy h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.philosophy-item {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
}

.philosophy-item h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.philosophy-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 解决方案页面 */
.solutions {
    padding: 4rem 0;
}

.solution-case {
    background: var(--bg-white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    padding: 3rem;
    margin-bottom: 3rem;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.case-header h2 {
    color: var(--text-dark);
    font-size: 1.75rem;
}

.case-tag {
    background: var(--primary-gradient);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.case-tag:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.case-content {
    display: grid;
    gap: 2rem;
}

.problem-section,
.solution-section,
.synergy-section,
.results-section {
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 0.5rem;
}

.problem-section h3,
.solution-section h3,
.synergy-section h3,
.results-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.solution-dual {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.hardware-solution,
.software-solution {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 0.5rem;
}

.hardware-solution h4,
.software-solution h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.hardware-solution ul,
.software-solution ul {
    list-style: none;
    padding-left: 0;
}

.hardware-solution li,
.software-solution li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-medium);
}

.hardware-solution li:before,
.software-solution li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

.synergy-section .metaphor {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-style: italic;
    color: var(--primary-color);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.result-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 0.5rem;
}

.result-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.result-label {
    color: var(--text-medium);
    font-size: 0.875rem;
}

/* CTA区域 - 动态背景 */
.cta-section {
    padding: 6rem 0;
    background: var(--primary-gradient);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: white;
}

.cta-section p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: 2.5rem;
    color: white;
    font-weight: 500;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 关于我们页面 */
.company-story {
    padding: 4rem 0;
}

.company-story h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.story-content {
    max-width: 900px;
    margin: 0 auto;
}

.story-intro {
    margin-bottom: 3rem;
}

.story-intro h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.story-intro p {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.story-intro .poetry {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 500;
    padding: 1rem;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    border-radius: 0.25rem;
}

/* 时间线 */
.milestones {
    margin-top: 3rem;
}

.milestones h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline:before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item:before {
    content: "";
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 16px;
    height: 16px;
    background: var(--primary-gradient);
    border-radius: 50%;
    border: 4px solid var(--bg-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.timeline-item:hover:before {
    transform: scale(1.3);
    box-shadow: var(--shadow-glow);
}

.timeline-year {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-dark);
}

/* 团队介绍 */
.team {
    padding: 4rem 0;
    background: var(--bg-light);
}

.team h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-style: italic;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

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

.role-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: transform var(--transition-base);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.team-role:hover .role-icon {
    transform: scale(1.15) rotate(5deg);
}

.team-role h3 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
    font-size: 1.375rem;
    font-weight: 700;
}

.role-description {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-style: italic;
}

.role-skills {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    text-align: left;
}

.role-skills strong {
    color: var(--text-dark);
}

.role-skills {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 价值观 */
.values {
    padding: 4rem 0;
}

.values h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.value-item {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border-left: 4px solid;
    border-image: var(--primary-gradient) 1;
    transition: all var(--transition-base);
    position: relative;
}

.value-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(30, 41, 59, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.value-item:hover {
    transform: translateY(-5px) translateX(5px);
    box-shadow: var(--shadow-xl);
    border-left-width: 6px;
    background: var(--bg-white);
}

.value-item:hover::before {
    opacity: 1;
}

.value-item h3 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
    font-size: 1.375rem;
    font-weight: 700;
}

.value-item p {
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.value-poetry {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 500;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* 地域特色 */
.location {
    padding: 4rem 0;
    background: var(--bg-light);
    text-align: center;
}

.location h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.location p {
    color: var(--text-dark);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 1rem;
}

/* 技术优势页面 */
.tech-overview {
    padding: 4rem 0;
    text-align: center;
}

.tech-overview h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-intro {
    color: var(--text-dark);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.tech-section {
    padding: 4rem 0;
}

.tech-section:nth-child(even) {
    background: var(--bg-light);
}

.tech-section h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.tech-card h3 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
    font-size: 1.375rem;
    font-weight: 700;
}

.tech-details ul {
    list-style: none;
    padding-left: 0;
}

.tech-details li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-medium);
}

.tech-details li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.tech-poetry {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 500;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.synergy-tech {
    background: var(--bg-light);
    color: var(--text-dark);
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}

.synergy-tech::before {
    display: none;
}

.synergy-tech .container {
    position: relative;
    z-index: 1;
}

.synergy-tech h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
    font-weight: 900;
    text-shadow: none;
}

.synergy-tech .section-intro {
    color: var(--text-dark);
    text-shadow: none;
    font-weight: 400;
    max-width: 900px;
    margin: 0 auto 3rem;
    text-align: center;
}

.synergy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.synergy-item {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    box-shadow: var(--shadow);
}

.synergy-item:hover {
    background: var(--bg-white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    border-color: var(--border-light);
}

.synergy-item h3 {
    margin-bottom: 1.25rem;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-dark) !important;
    text-shadow: none;
    letter-spacing: normal;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.synergy-item p {
    line-height: 1.8;
    color: var(--text-dark) !important;
    font-size: 0.9375rem;
    text-shadow: none;
    font-weight: 400;
}

/* 质量保障 */
.quality {
    padding: 4rem 0;
}

.quality h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.quality-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 0.75rem;
}

.quality-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.quality-item ul {
    list-style: none;
    padding-left: 0;
}

.quality-item li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-medium);
}

.quality-item li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 客户案例页面 */
.cases {
    padding: 4rem 0;
}

.case-card {
    background: var(--bg-white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    padding: 3rem;
    margin-bottom: 3rem;
}

.case-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.case-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.case-industry,
.case-year {
    background: var(--primary-gradient);
    color: white;
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.case-industry:hover,
.case-year:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.case-header h2 {
    color: var(--text-dark);
    font-size: 1.75rem;
}

.case-body {
    display: grid;
    gap: 2rem;
}

.case-challenge,
.case-solution,
.case-results {
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 0.5rem;
}

.case-challenge h3,
.case-solution h3,
.case-results h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.case-challenge p,
.case-solution p {
    color: var(--text-dark);
    line-height: 1.8;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 0.5rem;
}

.stat-value {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.stat-label {
    color: var(--text-dark);
    font-size: 0.875rem;
}

.case-testimonial {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 0.5rem;
    border-left: 4px solid var(--primary-color);
}

.case-testimonial blockquote {
    font-style: italic;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.case-testimonial cite {
    color: var(--primary-color);
    font-weight: 600;
}

/* 案例总结 */
.cases-summary {
    padding: 4rem 0;
    background: var(--primary-color);
    color: white;
}

.cases-summary h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

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

.summary-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.summary-label {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.summary-poetry {
    font-size: 0.875rem;
    color: var(--text-medium);
    font-style: italic;
}

/* 联系我们页面 */
.contact-form-section {
    padding: 4rem 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2,
.contact-details h2 {
    font-size: 1.75rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    display: grid;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
    background: var(--bg-white);
    color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 41, 59, 0.05);
    transform: translateY(-1px);
}

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

.form-group textarea {
    resize: vertical;
}

.contact-details {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
}

.contact-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

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

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-item .poetry {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 500;
}

.contact-item ul {
    list-style: none;
    padding-left: 0;
}

.contact-item li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.contact-item li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 服务流程 */
.service-process {
    padding: 4rem 0;
    background: var(--bg-light);
}

.service-process h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.process-step {
    text-align: center;
    padding: 2.5rem;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.process-step:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.process-step:hover::before {
    opacity: 0.05;
}

.process-step > * {
    position: relative;
    z-index: 1;
}

.step-number {
    width: 70px;
    height: 70px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-colored);
    transition: all var(--transition-base);
}

.process-step:hover .step-number {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-glow);
}

.process-step h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.process-step p {
    color: var(--text-medium);
    font-size: 0.875rem;
}

/* 页脚 - 企业稳重专业设计 */
.footer {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    color: var(--text-dark);
    padding: 6rem 0 2rem;
    position: relative;
    border-top: 2px solid var(--border-color);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    box-shadow: 0 0 20px rgba(30, 41, 59, 0.15);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-section p {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
    padding-left: 0;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-block;
    position: relative;
    padding-left: 0;
}

.footer-section a::before {
    content: '→';
    position: absolute;
    left: -1.25rem;
    opacity: 0;
    transition: all var(--transition-base);
    color: var(--primary-color);
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 1.25rem;
    transform: translateX(4px);
}

.footer-section a:hover::before {
    opacity: 1;
    left: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-medium);
    font-size: 0.875rem;
}

/* 应用领域 */
.application-areas {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 2px solid var(--border-color);
}

.application-areas h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.application-item {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--primary-color);
}

.application-item h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.application-item p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 0.875rem;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* 滚动触发动画 */
@media (prefers-reduced-motion: no-preference) {
    .value-card,
    .service-item,
    .tech-card,
    .team-role,
    .category-card,
    .process-step {
        animation: fadeInUp 0.6s ease-out backwards;
    }
    
    .value-card:nth-child(1),
    .service-item:nth-child(1),
    .tech-card:nth-child(1) {
        animation-delay: 0.1s;
    }
    
    .value-card:nth-child(2),
    .service-item:nth-child(2),
    .tech-card:nth-child(2) {
        animation-delay: 0.2s;
    }
    
    .value-card:nth-child(3),
    .service-item:nth-child(3),
    .tech-card:nth-child(3) {
        animation-delay: 0.3s;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 选择文本样式 */
::selection {
    background: rgba(30, 41, 59, 0.1);
    color: var(--text-dark);
}

::-moz-selection {
    background: rgba(30, 41, 59, 0.1);
    color: var(--text-dark);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .language-switcher {
        margin-left: 0;
        padding-left: 0;
        margin-top: 1rem;
        width: 100%;
        justify-content: center;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    
    .nav-menu a {
        width: 100%;
        text-align: center;
    }

    .hero {
        padding: 8rem 0;
        min-height: 80vh;
    }

    .hero-title {
        font-size: 2.75rem;
    }

    .hero-title .subtitle {
        font-size: 1.625rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .solution-dual {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .value-cards,
    .services-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .page-header {
        padding: 8rem 0 6rem;
        min-height: 50vh;
    }
    
    .section-title {
        font-size: 2.5rem;
        margin-bottom: 4.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .value-card,
    .service-item,
    .tech-card {
        padding: 2rem;
    }
    
    .hero {
        padding: 6rem 0;
        min-height: 70vh;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-title .subtitle {
        font-size: 1.5rem;
    }
    
    .page-header {
        padding: 7rem 0 5rem;
        min-height: 45vh;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}