/* ========================================
   云屿智能企业官网 - AI科技感主样式表
   主色调：深蓝黑 + 科技蓝 + 霓虹蓝
   ======================================== */

/* CSS变量定义 */
:root {
    /* 主色调 - AI科技蓝 */
    --primary-dark: #050d1a;
    --primary: #0f2847;
    --primary-light: #1a56db;
    --primary-lighter: #3b82f6;
    --primary-glow: #60a5fa;
    
    /* 辅助色 - 科技感渐变 */
    --accent: #6366f1;
    --accent-light: #818cf8;
    --cyber-blue: #00d4ff;
    --cyber-purple: #7c3aed;
    --neon-blue: #00b4d8;
    
    /* 中性色 */
    --white: #ffffff;
    --gray-50: #f0f4f8;
    --gray-100: #e2e8f0;
    --gray-200: #cbd5e0;
    --gray-300: #a0aec0;
    --gray-400: #718096;
    --gray-500: #4a5568;
    --gray-600: #2d3748;
    --gray-700: #1e293b;
    --gray-800: #1a202c;
    --gray-900: #0f172a;
    
    /* 功能色 */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    
    /* 间距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* 容器宽度 */
    --container-max: 1200px;
    --container-padding: 1rem;
}

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

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.78);
    background-color: var(--primary-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--cyber-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-light);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* 容器 */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* 通用区块 */
.section {
    padding: var(--space-4xl) 0;
}

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

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

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-md);
    letter-spacing: 0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.72);
    max-width: 600px;
    margin: 0 auto;
}

.section-dark .section-title {
    color: var(--white);
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.72);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyber-blue) 0%, var(--primary-lighter) 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 4px 25px rgba(0, 212, 255, 0.4);
    transform: translateY(-1px);
    color: var(--white);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary);
    border: 1px solid var(--white);
}

.btn-white:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-100);
    color: var(--primary);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--cyber-blue);
    color: var(--white);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.btn-icon {
    font-size: 1.125em;
}

/* ========================================
   顶部导航 - 毛玻璃科技感
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(5, 13, 26, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(96, 165, 250, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-base);
}

.header.scrolled {
    background-color: rgba(5, 13, 26, 0.95);
    border-bottom-color: rgba(96, 165, 250, 0.15);
    box-shadow: 0 4px 30px rgba(0, 180, 216, 0.08);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--cyber-blue) 0%, var(--primary-lighter) 50%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.65);
    padding: var(--space-sm) 0;
    position: relative;
    letter-spacing: 0.02em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--accent-light));
    transition: width var(--transition-base);
    border-radius: 1px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: all var(--transition-base);
}

/* ========================================
   Banner轮播 - AI科技感
   ======================================== */
.hero-banner {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 900px;
    overflow: hidden;
}

/* 科技网格背景 */
.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(96, 165, 250, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 165, 250, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
    pointer-events: none;
}

/* 光晕装饰 */
.hero-banner::after {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.banner-slider {
    position: relative;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
    visibility: visible;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.banner-content {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 2;
}

.banner-text {
    max-width: 700px;
    width: 100%;
    min-width: 0;
    color: var(--white);
    padding-top: 80px;
}

.banner-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, #ffffff 0%, var(--cyber-blue) 50%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.05em;
}

.banner-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    color: rgba(255, 255, 255, 0.9);
}

.banner-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-2xl);
    letter-spacing: 0.08em;
}

.banner-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    max-width: 100%;
}

.banner-actions .btn-white {
    background: linear-gradient(135deg, var(--cyber-blue) 0%, var(--primary-lighter) 100%);
    border: none;
    color: var(--white);
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.banner-actions .btn-white:hover {
    box-shadow: 0 4px 30px rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
    color: var(--white);
}

.banner-actions .btn-outline-white {
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
}

.banner-actions .btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--cyber-blue);
    color: var(--white);
}

/* 轮播指示器 */
.banner-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-sm);
    z-index: 10;
}

.banner-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.banner-dots .dot.active {
    background-color: var(--cyber-blue);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
    width: 32px;
}

/* 轮播控制 */
.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10;
    backdrop-filter: blur(10px);
}

.banner-prev:hover,
.banner-next:hover {
    background-color: rgba(0, 212, 255, 0.15);
    border-color: var(--cyber-blue);
}

.banner-prev { left: 30px; }
.banner-next { right: 30px; }

/* ========================================
   服务亮点 - AI科技卡片
   ======================================== */
.services-highlight {
    background-color: var(--primary-dark);
    position: relative;
    overflow: hidden;
}

.services-highlight::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    border: 1px solid rgba(96, 165, 250, 0.08);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 212, 255, 0.06);
    border-color: rgba(0, 212, 255, 0.25);
    background: rgba(255, 255, 255, 0.06);
}

.service-icon {
    width: 64px;
    height: 64px;
    color: var(--cyber-blue);
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.3));
}

.service-icon svg { width: 100%; height: 100%; }

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.service-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.service-features { margin-bottom: var(--space-lg); }

.service-features li {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.65);
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--cyber-blue);
    font-weight: 600;
}

.service-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--cyber-blue);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.service-link:hover {
    gap: var(--space-sm);
    color: var(--accent-light);
}

/* ========================================
   客户案例
   ======================================== */
.cases-section {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #080e1e 100%);
    position: relative;
}

.cases-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.15), transparent);
}

.cases-carousel { position: relative; overflow: hidden; }

.cases-track {
    display: flex;
    gap: var(--space-xl);
    transition: transform var(--transition-slow);
}

.case-card {
    flex: 0 0 calc(50% - var(--space-md));
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(96, 165, 250, 0.06);
    transition: all var(--transition-base);
}

.case-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.2);
}

.case-image { height: 220px; overflow: hidden; }

.case-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 600;
}

.case-content { padding: var(--space-xl); }

.case-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.case-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.case-stats { display: flex; gap: var(--space-xl); }

.stat { text-align: center; }

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--cyber-blue);
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.64);
    margin-top: var(--space-xs);
}

/* 轮播控制 */
.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10;
    backdrop-filter: blur(10px);
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--cyber-blue);
}

.carousel-prev { left: -22px; }
.carousel-next { right: -22px; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.carousel-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.15);
    transition: all var(--transition-base);
}

.carousel-dots .dot.active {
    background-color: var(--cyber-blue);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
    width: 28px;
}

/* ========================================
   企业优势 - 科技感
   ======================================== */
.advantages-section {
    background-color: var(--primary-dark);
    position: relative;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.15), transparent);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.advantage-item {
    text-align: center;
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    border: 1px solid rgba(96, 165, 250, 0.06);
    transition: all var(--transition-base);
}

.advantage-item:hover {
    border-color: rgba(0, 212, 255, 0.15);
    background: rgba(255, 255, 255, 0.04);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--cyber-blue), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.advantage-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.advantage-desc {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
}

.advantages-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-box {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    text-align: center;
    border-left: 3px solid var(--cyber-blue);
    border: 1px solid rgba(96, 165, 250, 0.06);
    border-left: 3px solid var(--cyber-blue);
}

.feature-box h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.feature-box p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
}

/* ========================================
   CTA区域 - 科技渐变
   ======================================== */
.cta-section {
    background: linear-gradient(135deg, #0a1628 0%, #1a365d 40%, #0f2847 100%);
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -100px; left: 50%; transform: translateX(-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

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

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: 0.03em;
}

.cta-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-2xl);
}

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

/* ========================================
   底部Footer - 暗色科技风
   ======================================== */
.footer {
    background-color: #030810;
    color: rgba(255, 255, 255, 0.72);
    padding: var(--space-4xl) 0 var(--space-xl);
    border-top: 1px solid rgba(96, 165, 250, 0.06);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.footer-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    color: rgba(255, 255, 255, 0.64);
}

.footer-contact p { margin-bottom: var(--space-xs); }

.footer-contact a {
    color: var(--white);
}

.footer-contact a:hover {
    color: var(--cyber-blue);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.footer-links li { margin-bottom: var(--space-sm); }

.footer-links a {
    color: rgba(255, 255, 255, 0.64);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--cyber-blue); }

.footer-qr h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.58);
    margin-bottom: var(--space-sm);
    border: 1px solid rgba(96, 165, 250, 0.08);
}

.footer-bottom {
    border-top: 1px solid rgba(96, 165, 250, 0.06);
    padding-top: var(--space-xl);
}

.footer-copyright {
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.58);
}

.footer-copyright p { margin-bottom: var(--space-xs); }

.icp-number a { color: rgba(255, 255, 255, 0.58); }
.icp-number a:hover { color: var(--cyber-blue); }

/* ========================================
   回到顶部按钮
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--cyber-blue), var(--primary-lighter));
    color: var(--white);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    box-shadow: 0 4px 25px rgba(0, 212, 255, 0.5);
    transform: translateY(-4px);
}

/* ========================================
   页面内容样式
   ======================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0a1628 50%, #0f2847 100%);
    padding: 140px 0 80px;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(rgba(96, 165, 250, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 165, 250, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    position: relative;
    letter-spacing: 0.03em;
}

.page-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
}

.page-content {
    padding: var(--space-4xl) 0;
    background-color: var(--primary-dark);
}

/* 内容卡片 */
.content-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    border: 1px solid rgba(96, 165, 250, 0.06);
    margin-bottom: var(--space-xl);
}

.content-card h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(96, 165, 250, 0.1);
}

.content-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin: var(--space-xl) 0 var(--space-md);
}

.content-card p {
    margin-bottom: var(--space-md);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.65);
}

.content-card ul {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.content-card ul li {
    list-style: disc;
    margin-bottom: var(--space-sm);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
}

/* 时间线 */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--cyber-blue), var(--accent), rgba(96, 165, 250, 0.1));
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    background: var(--cyber-blue);
    border: 3px solid var(--primary-dark);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
}

.timeline-year {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--cyber-blue);
    margin-bottom: var(--space-xs);
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-xs);
}

.timeline-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.72);
}

/* 团队网格 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

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

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--cyber-blue) 0%, var(--accent) 100%);
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.team-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-xs);
}

.team-role {
    font-size: 0.875rem;
    color: var(--cyber-blue);
    margin-bottom: var(--space-sm);
}

.team-desc {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
}

/* 资质证书 */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.cert-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid rgba(96, 165, 250, 0.06);
}

.cert-icon { font-size: 2.5rem; margin-bottom: var(--space-sm); }

.cert-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
}

/* 产品详情 */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    margin-bottom: var(--space-3xl);
}

.product-detail.reverse { direction: rtl; }
.product-detail.reverse > * { direction: ltr; }

.product-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.08);
}

.product-image-placeholder {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #0a1628 0%, #1a365d 50%, #0f2847 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
}

.product-info h3 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.product-info p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.product-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.benefit-item {
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    border: 1px solid rgba(96, 165, 250, 0.06);
}

.benefit-icon { font-size: 1.5rem; margin-bottom: var(--space-xs); }

.benefit-text {
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.news-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(96, 165, 250, 0.06);
    transition: all var(--transition-base);
}

.news-item:hover {
    border-color: rgba(0, 212, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.news-date-day {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--cyber-blue);
    line-height: 1;
}

.news-date-month {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.64);
    text-transform: uppercase;
}

.news-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.news-content p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
}

/* 联系表单 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-lg);
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(0, 212, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.contact-text h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-xs);
}

.contact-text p,
.contact-text a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.72);
}

.contact-text a:hover { color: var(--cyber-blue); }

/* 表单样式 */
.form-group { margin-bottom: var(--space-lg); }

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    font-size: 0.9375rem;
    border: 1px solid rgba(96, 165, 250, 0.15);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--cyber-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.58);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-consent {
    display: grid;
    grid-template-columns: 18px 1fr;
    gap: var(--space-sm);
    align-items: start;
    margin-bottom: var(--space-lg);
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.86rem;
    line-height: 1.7;
}

.form-consent input {
    width: 18px;
    height: 18px;
    margin-top: 0.2rem;
    accent-color: var(--cyber-blue);
}

.form-consent a {
    color: var(--primary-light);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

/* 地图容器 */
.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.05);
    background-color: rgba(255, 255, 255, 0.03);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.58);
    border: 1px solid rgba(96, 165, 250, 0.06);
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.58);
    margin-bottom: var(--space-xl);
}

.breadcrumb a { color: rgba(255, 255, 255, 0.68); }
.breadcrumb a:hover { color: var(--cyber-blue); }
.breadcrumb-separator { color: rgba(255, 255, 255, 0.54); }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-3xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-md);
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(96, 165, 250, 0.08);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--cyber-blue);
    color: var(--cyber-blue);
}

.pagination .current {
    background: linear-gradient(135deg, var(--cyber-blue), var(--primary-lighter));
    border-color: transparent;
    color: var(--white);
}

/* 标签 */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: rgba(0, 212, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.tag-primary {
    background: rgba(0, 212, 255, 0.1);
    color: var(--cyber-blue);
}

/* ========================================
   FAQ折叠面板
   ======================================== */
.faq-item {
    border-bottom: 1px solid rgba(96, 165, 250, 0.06);
    padding: var(--space-lg) 0;
}

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

.faq-question {
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: var(--space-sm);
}

.faq-answer {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.8;
    padding-left: var(--space-md);
}

/* ========================================
   客户标签云
   ======================================== */
.client-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.client-tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.03);
    color: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(96, 165, 250, 0.08);
    transition: all var(--transition-fast);
}

.client-tag:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--cyber-blue);
    border-color: rgba(0, 212, 255, 0.2);
}

/* ========================================
   服务流程步骤
   ======================================== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.process-step {
    text-align: center;
    padding: var(--space-lg);
}

.process-step-number {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--cyber-blue), var(--primary-lighter));
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.25);
}

.process-step-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-xs);
}

.process-step-desc {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.68);
    line-height: 1.5;
}

/* ========================================
   产品卡片
   ======================================== */
.product-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid rgba(96, 165, 250, 0.06);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    border-color: rgba(0, 212, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.product-card.featured {
    border: 1px solid var(--cyber-blue);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
}

.product-card.featured::before {
    content: '主推';
    position: absolute;
    top: 12px;
    right: -30px;
    background: linear-gradient(135deg, var(--cyber-blue), var(--accent));
    color: var(--white);
    padding: 2px 40px;
    font-size: 0.75rem;
    font-weight: 600;
    transform: rotate(45deg);
}

.product-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.product-card .audience {
    font-size: 0.875rem;
    color: var(--cyber-blue);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.product-card p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
}

.product-card ul {
    padding-left: var(--space-md);
    margin-bottom: var(--space-md);
}

.product-card ul li {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--space-xs);
    list-style: disc;
    line-height: 1.6;
}

/* ========================================
   对比表格
   ======================================== */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
    font-size: 0.9375rem;
}

.comparison-table thead tr {
    background: linear-gradient(135deg, var(--cyber-blue), var(--primary-lighter));
    color: var(--white);
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(96, 165, 250, 0.06);
    color: rgba(255, 255, 255, 0.7);
}

.comparison-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    font-weight: 600;
    color: var(--white);
}

/* ========================================
   保障体系网格
   ======================================== */
.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.guarantee-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    border: 1px solid rgba(96, 165, 250, 0.06);
}

.guarantee-icon { font-size: 1.5rem; flex-shrink: 0; }

.guarantee-text h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-xs);
}

.guarantee-text p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ========================================
   合作模式卡片
   ======================================== */
.cooperation-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.cooperation-card {
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.cooperation-card:hover { transform: translateY(-4px); }

.cooperation-card.primary {
    background: linear-gradient(135deg, var(--cyber-blue) 0%, var(--primary-lighter) 100%);
    color: var(--white);
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.15);
}

.cooperation-card.secondary {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--cyber-blue);
}

.cooperation-card.tertiary {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(96, 165, 250, 0.1);
}

.cooperation-card h4 {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.64);
    margin-bottom: var(--space-sm);
}

.cooperation-card.primary h4 { color: rgba(255, 255, 255, 0.8); }

.cooperation-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.cooperation-card.primary h3 { color: var(--white); }
.cooperation-card.secondary h3,
.cooperation-card.tertiary h3 { color: var(--white); }

.cooperation-card p {
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.cooperation-card.primary p { color: rgba(255, 255, 255, 0.85); }
.cooperation-card.secondary p,
.cooperation-card.tertiary p { color: rgba(255, 255, 255, 0.68); }

/* ========================================
   6列优势网格
   ======================================== */
.advantages-grid-6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.advantage-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border-left: 3px solid var(--cyber-blue);
    border-top: 1px solid rgba(96, 165, 250, 0.06);
    border-right: 1px solid rgba(96, 165, 250, 0.06);
    border-bottom: 1px solid rgba(96, 165, 250, 0.06);
    transition: all var(--transition-base);
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.05);
}

.advantage-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.advantage-card p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.7;
    margin-bottom: 0;
}

/* 官方账号列表 */
.official-accounts { margin-top: var(--space-md); }

.official-accounts p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.64);
    margin-bottom: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* 响应式补充 */
@media (max-width: 1199px) {
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: rgba(5, 13, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: 999;
        border-bottom: 1px solid rgba(96, 165, 250, 0.1);
    }
    
    .nav-menu.active { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-menu li { width: 100%; border-bottom: 1px solid rgba(96, 165, 250, 0.06); }
    .nav-menu li:last-child { border-bottom: none; }
    .nav-link { display: block; padding: var(--space-md) 0; font-size: 1rem; }
    .nav-link::after { display: none; }
    .mobile-menu-toggle { display: flex; }
    
    .mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
    .mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    
    .banner-prev, .banner-next { display: none; }
    .services-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .case-card { flex: 0 0 100%; }
    .carousel-prev, .carousel-next { display: none; }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .cooperation-cards { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .guarantee-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .product-detail { grid-template-columns: 1fr; }
    .product-detail.reverse { direction: ltr; }
}

@media (max-width: 767px) {
    html,
    body {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    .section { padding: var(--space-3xl) 0; }
    .section-title { font-size: 1.75rem; }
    .hero-banner { min-height: 500px; }
    .banner-content {
        align-items: flex-start;
        padding-top: 150px;
    }
    .banner-text {
        padding-top: 0;
        max-width: 100%;
    }
    .banner-title {
        font-size: 2rem;
        letter-spacing: 0;
        word-break: keep-all;
        overflow-wrap: anywhere;
    }
    .banner-subtitle { font-size: 1rem; }
    .banner-desc {
        font-size: 0.9375rem;
        letter-spacing: 0;
    }
    .banner-actions { flex-direction: column; }
    .banner-actions .btn { width: 100%; }
    .content-card {
        padding: var(--space-lg);
        overflow: hidden;
    }
    .content-card h2,
    .contact-promise-card h2 {
        overflow-wrap: anywhere;
    }
    .advantages-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
    .advantages-features { grid-template-columns: 1fr; }
    .cta-title { font-size: 1.75rem; }
    .cta-actions { flex-direction: column; }
    .cta-actions .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: 1fr; max-width: 300px; margin: 0 auto; }
    .product-benefits { grid-template-columns: 1fr; }
    .news-item { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .page-header { padding: 120px 0 60px; }
    .page-title { font-size: 1.75rem; }
    .process-steps { grid-template-columns: 1fr; }
    .advantages-grid-6 { grid-template-columns: 1fr; }
}

@media (max-width: 575px) {
    .container {
        --container-padding: 1rem;
    }
    .navbar {
        height: 70px;
        gap: var(--space-sm);
        min-width: 0;
    }
    .logo img {
        width: 64px;
        height: 64px !important;
    }
    .nav-actions {
        gap: var(--space-xs);
        min-width: 0;
    }
    .nav-actions .btn {
        padding: 0.55rem 0.8rem;
        font-size: 0.78rem;
        max-width: 132px;
    }
    .mobile-menu-toggle {
        flex: 0 0 auto;
    }
    .nav-menu { top: 70px; }
    .hero-banner { min-height: 450px; }
    .banner-title { font-size: 1.62rem; }
    .banner-dots { bottom: 20px; }
    .contact-promise-card {
        padding: var(--space-lg);
        margin-left: 0;
        margin-right: 0;
    }
    .contact-promise-grid div {
        min-width: 0;
    }
    .advantages-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .back-to-top { width: 40px; height: 40px; font-size: 1rem; bottom: 20px; right: 20px; }
}

@media print {
    .header, .hero-banner, .back-to-top, .mobile-menu-toggle,
    .banner-prev, .banner-next, .banner-dots,
    .carousel-prev, .carousel-next, .carousel-dots { display: none !important; }
    body { font-size: 12pt; line-height: 1.5; color: #000; background: #fff; }
    .section { padding: 20pt 0; page-break-inside: avoid; }
    .container { max-width: 100%; }
    a { text-decoration: underline; color: #000; }
    .footer { background: #fff; color: #000; border-top: 1pt solid #000; }
}

@media (prefers-contrast: high) {
    :root { --primary: #050d1a; --primary-light: #0f2847; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   Logo墙
   ======================================== */
.logo-wall {
    text-align: center;
    padding: var(--space-xl) 0;
}

.logo-wall img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(96, 165, 250, 0.08);
}

/* ========================================
   导航下拉菜单
   ======================================== */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > .nav-link::after {
    content: ' ▾';
    font-size: 0.7em;
    margin-left: 2px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background: rgba(5, 13, 26, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(96, 165, 250, 0.1);
    border-radius: var(--radius-md);
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    z-index: 100;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.dropdown-link {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.65);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.dropdown-link:hover,
.dropdown-link.active {
    color: var(--cyber-blue);
    background: rgba(0, 212, 255, 0.05);
}

/* 移动端下拉菜单 */
@media (max-width: 991px) {
    .nav-dropdown > .nav-link::after {
        content: '';
    }
    
    .dropdown-menu {
        position: static;
        transform: none;
        background: transparent;
        border: none;
        box-shadow: none;
        backdrop-filter: none;
        padding: 0 0 0 var(--space-md);
        opacity: 1;
        visibility: visible;
    }
    
    .dropdown-link {
        padding: var(--space-sm) 0;
        font-size: 0.9375rem;
        border-bottom: 1px solid rgba(96, 165, 250, 0.06);
    }
}


/* ========================================
   Conversion additions
   ======================================== */
.hero-proof {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin: var(--space-lg) 0 0;
}

.hero-proof span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius-full);
    color: rgba(255, 255, 255, 0.88);
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.875rem;
}

.diagnosis-section {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #08192f 100%);
}

.diagnosis-panel {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: var(--space-xl);
    align-items: center;
    width: 100%;
    min-width: 0;
    padding: var(--space-2xl);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.045);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.diagnosis-copy,
.diagnosis-list {
    min-width: 0;
}

.diagnosis-eyebrow {
    color: var(--cyber-blue);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.diagnosis-copy h2,
.conversion-card h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: var(--space-md);
    overflow-wrap: anywhere;
}

.diagnosis-copy p,
.conversion-card > p {
    color: rgba(255, 255, 255, 0.72);
}

.diagnosis-list {
    display: grid;
    gap: var(--space-sm);
}

.diagnosis-list span {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.86);
}

.diagnosis-actions,
.mini-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.conversion-card {
    border-color: rgba(0, 212, 255, 0.22);
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.choice-card {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(96, 165, 250, 0.12);
}

.choice-card strong {
    display: block;
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.choice-card span {
    display: block;
    color: var(--cyber-blue);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.choice-card p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9375rem;
}

@media (max-width: 991px) {
    .diagnosis-panel,
    .choice-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575px) {
    .diagnosis-panel {
        padding: var(--space-xl);
    }

    .diagnosis-copy h2,
    .conversion-card h2 {
        font-size: 1.5rem;
    }
}


/* ========================================
   About founder refresh
   ======================================== */
.section-kicker {
    color: var(--cyber-blue);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-sm);
}

.about-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
    gap: var(--space-xl);
    align-items: stretch;
}

.about-company-card h2,
.founder-content h2 {
    color: var(--white);
}

.about-stat-panel {
    display: grid;
    gap: var(--space-md);
    padding: var(--space-xl);
    border: 1px solid rgba(96, 165, 250, 0.16);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(15, 40, 71, 0.72) 0%, rgba(5, 13, 26, 0.9) 100%);
}

.about-stat {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.about-stat:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.about-stat strong {
    display: block;
    color: var(--cyber-blue);
    font-size: 2rem;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.about-stat span {
    color: rgba(255, 255, 255, 0.72);
}

.founder-section {
    overflow: hidden;
}

.founder-layout {
    display: grid;
    grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.28fr);
    gap: var(--space-2xl);
    align-items: center;
}

.founder-visual {
    display: flex;
    justify-content: center;
}

.founder-portrait {
    width: min(320px, 100%);
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-lg);
    display: grid;
    place-items: center;
    border: 1px solid rgba(96, 165, 250, 0.24);
    background:
        radial-gradient(circle at 28% 18%, rgba(0, 212, 255, 0.32), transparent 28%),
        linear-gradient(150deg, #0f2847 0%, #08192f 52%, #050d1a 100%);
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.28);
}

.founder-portrait.has-image {
    overflow: hidden;
    padding: 0;
    background: rgba(255, 255, 255, 0.04);
}

.founder-portrait.has-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.founder-portrait span {
    width: 112px;
    height: 112px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--white);
    font-size: 3.5rem;
    font-weight: 800;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.22);
}

.founder-role {
    color: var(--cyber-blue);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.founder-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.founder-tags span {
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    border: 1px solid rgba(96, 165, 250, 0.2);
    color: rgba(255, 255, 255, 0.82);
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.875rem;
}

.principle-grid,
.company-principles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.principle-card,
.company-principles > div {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(96, 165, 250, 0.12);
}

.principle-card strong,
.company-principles h3 {
    display: block;
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.company-principles span {
    display: inline-block;
    color: var(--cyber-blue);
    font-weight: 800;
    margin-bottom: var(--space-sm);
}

.principle-card p,
.company-principles p {
    color: rgba(255, 255, 255, 0.72);
}

@media (max-width: 991px) {
    .about-intro-grid,
    .founder-layout,
    .principle-grid,
    .company-principles {
        grid-template-columns: 1fr;
    }
}


/* ========================================
   Service pages conversion refresh
   ======================================== */
.service-combo-section h2,
.service-fit-copy h2 {
    color: var(--white);
}

.service-combo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.service-combo-card {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(96, 165, 250, 0.14);
}

.service-combo-card span {
    color: var(--cyber-blue);
    font-weight: 800;
    font-size: 0.875rem;
}

.service-combo-card h3 {
    color: var(--white);
    margin: var(--space-xs) 0 var(--space-sm);
}

.service-combo-card p {
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--space-md);
}

.service-combo-card strong {
    color: rgba(255, 255, 255, 0.9);
}

.service-fit-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    gap: var(--space-xl);
    align-items: stretch;
    border-color: rgba(0, 212, 255, 0.2);
}

.service-fit-copy p {
    color: rgba(255, 255, 255, 0.72);
}

.service-fit-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.service-fit-grid {
    display: grid;
    gap: var(--space-md);
}

.service-fit-grid > div {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.052);
    border: 1px solid rgba(96, 165, 250, 0.12);
}

.service-fit-grid strong {
    display: block;
    color: var(--cyber-blue);
    margin-bottom: var(--space-xs);
}

.service-fit-grid p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9375rem;
}

@media (max-width: 991px) {
    .service-combo-grid,
    .service-fit-panel {
        grid-template-columns: 1fr;
    }
}


/* ================================
   Service image and case placeholders
================================ */

.service-asset-reserve,
.detail-asset-section {
    margin-top: var(--space-xl);
}

.service-asset-reserve {
    padding: var(--space-xl);
    border: 1px dashed rgba(96, 165, 250, 0.34);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.74), rgba(15, 23, 42, 0.42));
}

.service-asset-header {
    margin-bottom: var(--space-lg);
}

.service-asset-header h4 {
    color: #fff;
    font-size: 1.35rem;
    margin-bottom: var(--space-sm);
}

.service-asset-header p,
.detail-asset-section .section-header p {
    color: rgba(255, 255, 255, 0.68);
    max-width: 860px;
}

.service-asset-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: var(--space-xl);
    align-items: stretch;
}

.service-asset-panel {
    min-width: 0;
}

.asset-panel-title {
    color: #fff;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.service-image-slots {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
}

.service-image-slot {
    min-height: 172px;
    padding: var(--space-lg);
    border: 1px dashed rgba(255, 255, 255, 0.24);
    border-radius: var(--radius-md);
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(139, 92, 246, 0.08)),
        rgba(255, 255, 255, 0.035);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xs);
}

.service-image-slot .slot-caption {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.service-image-slot.has-media {
    position: relative;
    padding: 0;
    overflow: hidden;
    display: block;
}

.service-image-slot.has-media img {
    width: 100%;
    height: 100%;
    min-height: 185px;
    object-fit: cover;
    display: block;
}

.service-image-slot.has-media .slot-caption {
    position: absolute;
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    background: rgba(5, 13, 26, 0.76);
    backdrop-filter: blur(10px);
}

.service-image-slots:empty {
    display: none;
}

.service-image-slot.has-media .slot-caption small {
    display: none;
}

.service-image-slot.wide {
    grid-column: 1 / -1;
    min-height: 190px;
}

.service-image-slot span {
    color: var(--primary-light);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0;
}

.service-image-slot strong {
    color: #fff;
    font-size: 1rem;
}

.service-image-slot small {
    color: rgba(255, 255, 255, 0.58);
    line-height: 1.6;
}

.service-case-slots {
    display: grid;
    gap: var(--space-md);
}

.service-case-slot {
    min-height: 132px;
    padding: var(--space-lg);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.045);
    overflow: hidden;
}

.service-case-slot.has-media {
    padding-top: 0;
}

.service-case-image {
    display: block;
    width: calc(100% + var(--space-lg) * 2);
    height: 150px;
    margin: 0 calc(var(--space-lg) * -1) var(--space-md);
    object-fit: cover;
    border-bottom: 1px solid rgba(96, 165, 250, 0.14);
}

.case-slot-tag {
    display: inline-flex;
    align-items: center;
    color: var(--primary-light);
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.service-case-slot strong {
    display: block;
    color: #fff;
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.service-case-slot p {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.92rem;
    line-height: 1.65;
    margin: 0;
}

.detail-asset-section .section-header {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.service-detail-video,
.news-detail-video {
    margin-bottom: var(--space-xl);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.035);
    overflow: hidden;
}

.service-detail-video video,
.news-detail-video video {
    width: 100%;
    max-height: 520px;
    display: block;
    background: #020617;
}

.detail-asset-layout .service-image-slot {
    min-height: 185px;
}

@media (max-width: 1024px) {
    .service-asset-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .service-asset-reserve {
        padding: var(--space-lg);
    }

    .service-image-slots {
        grid-template-columns: 1fr;
    }

    .service-image-slot.wide {
        grid-column: auto;
    }
}


/* ================================
   Services page lightweight overview
================================ */

.service-overview-lite .section-header {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.service-overview-lite .section-header p {
    max-width: 760px;
}

.service-lite-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-xl);
}

.service-lite-card {
    min-width: 0;
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.035);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-lite-media {
    min-height: 190px;
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.13), rgba(139, 92, 246, 0.08)),
        rgba(15, 23, 42, 0.58);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: var(--space-xs);
}

.service-lite-media.has-image {
    position: relative;
    padding: 0;
    overflow: hidden;
    text-decoration: none;
}

.service-lite-media.has-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.service-lite-media.has-image span {
    position: absolute;
    left: var(--space-lg);
    right: var(--space-lg);
    bottom: var(--space-lg);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: #fff;
    background: rgba(5, 13, 26, 0.78);
}

.service-lite-card:hover .service-lite-media.has-image img {
    transform: scale(1.04);
}

.service-lite-media span,
.service-lite-case span {
    color: var(--primary-light);
    font-size: 0.8rem;
    font-weight: 700;
}

.service-lite-media strong {
    color: #fff;
    font-size: 1.05rem;
    line-height: 1.45;
}

.service-lite-copy {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    flex: 1;
}

.service-lite-copy h3 {
    color: #fff;
    font-size: 1.35rem;
    margin: 0;
}

.service-lite-copy p {
    color: rgba(255, 255, 255, 0.68);
    margin: 0;
}

.service-lite-copy ul {
    margin: 0;
    padding-left: 1.1rem;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.8;
}

.service-lite-case {
    margin-top: auto;
    padding: var(--space-md);
    border: 1px dashed rgba(96, 165, 250, 0.24);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
}

.service-lite-case p {
    margin-top: var(--space-xs);
    font-size: 0.92rem;
}

.service-lite-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

@media (max-width: 1100px) {
    .service-lite-grid {
        grid-template-columns: 1fr;
    }

    .service-lite-card {
        display: grid;
        grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
    }

    .service-lite-media {
        border-bottom: none;
        border-right: 1px solid rgba(255, 255, 255, 0.08);
    }
}

@media (max-width: 720px) {
    .service-lite-card {
        display: flex;
    }

    .service-lite-media {
        min-height: 170px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .service-lite-copy {
        padding: var(--space-lg);
    }
}


/* ================================
   News clickable list and detail pages
================================ */

.news-card {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: stretch;
}

.news-thumb {
    min-height: 156px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(96, 165, 250, 0.14);
    text-decoration: none;
    display: flex;
}

.news-thumb.has-image img {
    width: 100%;
    height: 100%;
    min-height: 156px;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.news-card:hover .news-thumb.has-image img {
    transform: scale(1.04);
}

.news-thumb.no-image {
    padding: var(--space-lg);
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(139, 92, 246, 0.08)),
        rgba(255, 255, 255, 0.035);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xs);
}

.news-thumb-date {
    color: var(--primary-light);
    font-size: 0.82rem;
    font-weight: 700;
}

.news-thumb.no-image strong {
    color: #fff;
    font-size: 1rem;
}

.news-thumb.no-image small {
    color: rgba(255, 255, 255, 0.58);
    line-height: 1.55;
}

.news-meta {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.news-meta span,
.news-meta time,
.news-detail-meta span,
.news-detail-meta time {
    color: var(--primary-light);
    font-size: 0.82rem;
    font-weight: 700;
}

.news-content h3 a {
    color: inherit;
    text-decoration: none;
}

.news-content h3 a:hover,
.news-read-more:hover {
    color: var(--primary-light);
}

.news-read-more {
    margin-top: var(--space-sm);
    display: inline-block;
}

.news-detail-header .page-title {
    max-width: 980px;
    margin-left: auto;
    margin-right: auto;
}

.news-detail-container {
    max-width: 980px;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.news-detail-card {
    overflow: hidden;
}

.news-detail-hero-image {
    margin: calc(var(--space-xl) * -1) calc(var(--space-xl) * -1) var(--space-xl);
    height: 420px;
    overflow: hidden;
}

.news-detail-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-detail-hero-note {
    padding: var(--space-xl);
    border: 1px dashed rgba(96, 165, 250, 0.28);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(139, 92, 246, 0.08)),
        rgba(255, 255, 255, 0.035);
    margin-bottom: var(--space-xl);
}

.news-detail-hero-note span {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 0.9rem;
}

.news-detail-hero-note strong {
    display: block;
    color: #fff;
    font-size: 1.4rem;
    margin: var(--space-xs) 0;
}

.news-detail-hero-note p {
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
}

.news-detail-body {
    display: grid;
    gap: var(--space-xl);
}

.news-detail-body section {
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.news-detail-body section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-detail-body h2 {
    color: #fff;
    font-size: 1.45rem;
    margin-bottom: var(--space-md);
}

.news-detail-body p {
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.9;
    font-size: 1.02rem;
}

.news-detail-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-top: var(--space-2xl);
}

@media (max-width: 768px) {
    .news-card {
        grid-template-columns: 1fr;
    }

    .news-thumb,
    .news-thumb.has-image img {
        min-height: 190px;
    }

    .news-detail-hero-image {
        height: 260px;
        margin-left: calc(var(--space-lg) * -1);
        margin-right: calc(var(--space-lg) * -1);
    }

    .news-detail-meta {
        justify-content: flex-start;
    }
}


/* ================================
   Home news preview section
================================ */

.home-news-section {
    background: rgba(255, 255, 255, 0.015);
}

.home-news-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-xl);
}

.home-news-card {
    min-width: 0;
    border: 1px solid rgba(96, 165, 250, 0.12);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.035);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.home-news-image {
    height: 190px;
    overflow: hidden;
    display: block;
}

.home-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.home-news-card:hover .home-news-image img {
    transform: scale(1.04);
}

.home-news-text-thumb {
    height: 190px;
    padding: var(--space-xl);
    text-decoration: none;
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(139, 92, 246, 0.08)),
        rgba(255, 255, 255, 0.03);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xs);
}

.home-news-text-thumb span,
.home-news-copy span {
    color: var(--primary-light);
    font-size: 0.82rem;
    font-weight: 700;
}

.home-news-text-thumb strong {
    color: #fff;
    font-size: 1.15rem;
}

.home-news-text-thumb small {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.55;
}

.home-news-copy {
    padding: var(--space-xl);
}

.home-news-copy h3 {
    font-size: 1.12rem;
    line-height: 1.5;
    margin: var(--space-sm) 0;
}

.home-news-copy h3 a {
    color: #fff;
    text-decoration: none;
}

.home-news-copy h3 a:hover {
    color: var(--primary-light);
}

.home-news-copy p {
    color: rgba(255, 255, 255, 0.62);
    line-height: 1.7;
    margin: 0;
}

.section-action {
    display: flex;
    justify-content: center;
    margin-top: var(--space-2xl);
}

@media (max-width: 1024px) {
    .home-news-grid {
        grid-template-columns: 1fr;
    }

    .home-news-card {
        display: grid;
        grid-template-columns: 260px minmax(0, 1fr);
    }

    .home-news-image,
    .home-news-text-thumb {
        height: 100%;
        min-height: 190px;
    }
}

@media (max-width: 720px) {
    .home-news-card {
        display: flex;
    }
}


/* ================================
   Contact page conversion refinement
================================ */

.contact-promise-card {
    margin-bottom: var(--space-3xl);
    padding: var(--space-xl);
    border: 1px solid rgba(96, 165, 250, 0.14);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(139, 92, 246, 0.05)),
        rgba(255, 255, 255, 0.03);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
    gap: var(--space-xl);
    align-items: center;
}

.contact-promise-card h2 {
    color: #fff;
    font-size: 1.6rem;
    margin: var(--space-xs) 0 var(--space-sm);
}

.contact-promise-card p {
    color: rgba(255, 255, 255, 0.68);
    line-height: 1.8;
    margin: 0;
}

.contact-promise-grid {
    display: grid;
    gap: var(--space-md);
}

.contact-promise-grid div {
    padding: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
}

.contact-promise-grid strong {
    display: block;
    color: #fff;
    margin-bottom: var(--space-xs);
}

.contact-promise-grid span {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.92rem;
}

.form-honey {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.contact-form p a {
    color: var(--primary-light);
}

@media (max-width: 900px) {
    .contact-promise-card {
        grid-template-columns: 1fr;
    }
}


/* ================================
   Readability contrast pass
================================ */

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.58);
}

.form-input option {
    color: #ffffff;
    background-color: #0f172a;
}

.breadcrumb,
.breadcrumb a,
.footer-desc,
.footer-links a,
.footer-copyright,
.icp-number a,
.contact-text p,
.contact-text a,
.news-content p,
.case-desc,
.service-desc,
.product-info p,
.product-card p,
.official-accounts p {
    color: rgba(255, 255, 255, 0.68);
}

/* ================================
   Mobile overflow hardening
================================ */

@media (max-width: 767px) {
    .header .container,
    .navbar,
    .banner-content,
    .banner-text,
    .diagnosis-panel,
    .diagnosis-copy,
    .contact-promise-card,
    .content-card {
        max-width: 100%;
        min-width: 0;
    }

    .banner-title,
    .banner-subtitle,
    .banner-desc,
    .diagnosis-copy h2,
    .diagnosis-copy p,
    .content-card h2,
    .content-card p,
    .contact-promise-card h2,
    .contact-promise-card p {
        max-width: 100%;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .banner-desc {
        line-height: 1.7;
    }
}

@media (max-width: 991px) {
    .nav-actions > .btn {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        position: fixed;
        right: 1rem;
        top: 20px;
        z-index: 1101;
    }

    .diagnosis-copy h2,
    .contact-promise-card h2 {
        font-size: 1.45rem;
        line-height: 1.4;
        word-break: break-all;
        overflow-wrap: anywhere;
    }

    .diagnosis-copy p,
    .banner-desc {
        word-break: break-word;
        overflow-wrap: anywhere;
    }
}

@media (max-width: 575px) {
    .nav-actions > .btn {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .diagnosis-copy h2,
    .contact-promise-card h2 {
        font-size: 1.38rem;
        line-height: 1.4;
        word-break: break-all;
    }
}

.breadcrumb-separator,
.news-date-month {
    color: rgba(255, 255, 255, 0.54);
}