/* ============================================
   广州市玮盈科技有限公司 - 企业官网样式
   主题：工业科技 + 机器视觉
   ============================================ */

/* CSS Variables */
:root {
    /* 基础色彩 */
    --primary: #00A3FF;
    --primary-dark: #0088DD;
    --secondary: #00FF88;
    --bg-dark: #0B1426;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border: rgba(0, 163, 255, 0.2);
    --glow: 0 0 30px rgba(0, 163, 255, 0.3);
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* 间距系统 - 8px基准 */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;       /* 16px */
    --space-5: 1.25rem;    /* 20px */
    --space-6: 1.5rem;     /* 24px */
    --space-8: 2rem;       /* 32px */
    --space-10: 2.5rem;    /* 40px */
    --space-12: 3rem;      /* 48px */
    --space-16: 4rem;      /* 64px */
    --space-20: 5rem;      /* 80px */
    --space-24: 6rem;      /* 96px */
    
    /* 字体大小系统 */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    
    /* 圆角系统 */
    --radius-sm: 0.25rem;  /* 4px */
    --radius-md: 0.5rem;   /* 8px */
    --radius-lg: 0.75rem;  /* 12px */
    --radius-xl: 1rem;     /* 16px */
    --radius-2xl: 1.5rem;  /* 24px */
    
    /* 阴影系统 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 30px rgba(0, 163, 255, 0.3);
}

/* ============================================
   SVG Icon System - 统一图标库
   ============================================ */
.icon-svg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1em;
    height: 1em;
    vertical-align: middle;
}
.icon-svg svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

/* Contact Icons */
.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.2), rgba(0, 255, 136, 0.1));
    border: 1px solid rgba(0, 163, 255, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.contact-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
}

/* Nav Phone Icon */
.nav-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
}
.nav-phone svg {
    width: 18px;
    height: 18px;
    stroke: var(--primary);
    stroke-width: 2;
    fill: none;
    flex-shrink: 0;
}

/* Product Image Placeholder */
.product-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.05), rgba(0, 255, 136, 0.05));
    border-radius: 12px;
}
.product-image-placeholder .icon {
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-image-placeholder .icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--text-muted);
    stroke-width: 1.5;
    fill: none;
    opacity: 0.5;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Rajdhani', 'Noto Sans SC', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(11, 20, 38, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.nav.scrolled {
    padding: 0.75rem 0;
    background: rgba(11, 20, 38, 0.98);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo-text {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    position: relative;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
}

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

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

.nav-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    margin: -10px;
    z-index: 1001;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
}

/* Mobile Menu Panel */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    z-index: 999;
    padding: 5rem 1.5rem 2rem;
    transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu .nav-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    list-style: none;
}

.mobile-menu .nav-links li {
    border-bottom: 1px solid var(--border);
}

.mobile-menu .nav-links a {
    display: block;
    padding: 1rem 0;
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    transition: var(--transition);
    /* 增大触摸区域 */
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
    margin: -0.25rem 0;
}

.mobile-menu .nav-links a:hover,
.mobile-menu .nav-links a.active {
    color: var(--primary);
    padding-left: 0.5rem;
}

.mobile-menu .nav-links a::after {
    display: none;
}

.mobile-menu-contact {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.mobile-menu-contact .nav-phone {
    display: flex !important;
    color: var(--primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .mobile-menu-overlay {
        display: block;
    }
    .nav-phone {
        display: none;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 163, 255, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 30%, rgba(0, 255, 136, 0.15) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(0, 163, 255, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-dark) 0%, #0a1019 100%);
}

/* 动态光效 - 主光球 */
.hero-bg::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 163, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: float 8s ease-in-out infinite;
}

/* 动态光效 - 辅助光球 */
.hero-bg::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(50px);
    animation: float 10s ease-in-out infinite reverse;
}

/* 浮动粒子容器 */
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 15s linear infinite;
}

.hero-particle:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 20s; }
.hero-particle:nth-child(2) { left: 20%; animation-delay: 2s; animation-duration: 18s; }
.hero-particle:nth-child(3) { left: 30%; animation-delay: 4s; animation-duration: 22s; }
.hero-particle:nth-child(4) { left: 50%; animation-delay: 1s; animation-duration: 19s; }
.hero-particle:nth-child(5) { left: 70%; animation-delay: 3s; animation-duration: 21s; }
.hero-particle:nth-child(6) { left: 85%; animation-delay: 5s; animation-duration: 17s; }

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -20px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -10px) scale(1.02);
    }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 163, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 163, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 163, 255, 0.1);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero h1 {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease-out 0.4s both;
}

.hero-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, rgba(17, 24, 39, 0.9) 100%);
    border: 1px solid rgba(0, 163, 255, 0.25);
    border-radius: 24px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 0 50px rgba(0, 163, 255, 0.15),
        0 25px 50px rgba(0, 0, 0, 0.4);
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.hero-card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.3), rgba(0, 255, 136, 0.15));
    border: 1px solid rgba(0, 163, 255, 0.4);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    box-shadow: 0 0 30px rgba(0, 163, 255, 0.25);
}

/* 授权徽章 */
.hero-auth-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.15), rgba(0, 255, 136, 0.08));
    border: 1px solid rgba(0, 163, 255, 0.3);
    border-radius: 100px;
    padding: 0.4rem 1rem 0.4rem 0.6rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.hero-auth-badge svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* 卡片标题 */
.hero-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

/* 产品矩阵网格 */
.hero-product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.hero-product-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    padding: 0.7rem 0.3rem;
    background: rgba(0, 163, 255, 0.06);
    border: 1px solid rgba(0, 163, 255, 0.12);
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: default;
}

.hero-product-item svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary);
}

.hero-product-item span {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

.hero-product-item:hover {
    background: rgba(0, 163, 255, 0.12);
    border-color: rgba(0, 163, 255, 0.35);
    transform: translateY(-2px);
}

/* 信任保证条 */
.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(0, 163, 255, 0.15);
    font-size: 0.8rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.hero-trust svg {
    width: 14px;
    height: 14px;
    stroke: var(--secondary);
    flex-shrink: 0;
}

.hero-trust .dot {
    color: rgba(0, 163, 255, 0.3);
    margin: 0 0.15rem;
}

/* 统计区 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 163, 255, 0.2);
}

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

.stat-value {
    font-family: 'Rajdhani', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(0, 163, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 163, 255, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(0, 163, 255, 0.1);
    border-color: var(--primary);
}

/* Sections */
.section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 163, 255, 0.1);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section h2 {
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

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

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.product-card:hover::before {
    transform: scaleX(1);
}

/* 产品卡片整块可点击 */
.product-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.product-card-link .product-link {
    color: var(--primary);
    font-weight: 500;
}

.product-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.15), rgba(0, 255, 136, 0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.product-card h3 {
    margin-bottom: 0.75rem;
}

.product-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 500;
}

.product-link:hover {
    gap: 0.75rem;
}

/* Features */
.features {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0a1019 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: var(--transition);
    overflow: hidden;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.feature-image-wrap {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.15), rgba(0, 255, 136, 0.05));
}

.feature-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.feature-item:hover .feature-image-wrap img {
    transform: scale(1.05);
}

.feature-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(transparent, rgba(11, 20, 38, 0.9));
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.feature-image-overlay svg {
    width: 36px;
    height: 36px;
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
    margin-bottom: 0.25rem;
    filter: drop-shadow(0 2px 8px rgba(0, 163, 255, 0.4));
}

/* 授权证书卡片 — 竖版图片特殊处理 */
.feature-item:first-child .feature-image-wrap {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 240px;
}

.feature-item:first-child .feature-image-wrap img {
    object-fit: contain;
    padding: 0.75rem;
    max-width: 100%;
    max-height: 100%;
    transition: transform 0.5s ease;
}

.feature-item:first-child:hover .feature-image-wrap img {
    transform: scale(1.03);
}

.feature-item:first-child .feature-image-overlay {
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
    height: 50%;
}

.feature-body {
    padding: 1.5rem 1.5rem 2rem;
}

.feature-body h3 {
    margin-bottom: 0.75rem;
}

.feature-body p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Cases Section */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glow);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.2), rgba(0, 255, 136, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.case-content {
    padding: 1.5rem;
}

.case-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 163, 255, 0.1);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.case-card h3 {
    margin-bottom: 0.5rem;
}

.case-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 案例详情卡片样式 */
.case-card-detailed {
    display: flex;
    flex-direction: column;
}

.case-card-detailed .case-image {
    position: relative;
    overflow: hidden;
}

.case-card-detailed .case-image svg {
    width: 80px;
    height: 80px;
    transition: transform 0.3s ease;
}

.case-card-detailed:hover .case-image svg {
    transform: scale(1.05);
}

.case-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.75rem 1rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
}

.case-stats {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.case-detail {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.case-detail-item {
    margin-bottom: 0.75rem;
}

.case-detail-item:last-child {
    margin-bottom: 0;
}

.case-detail-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.case-detail-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.case-result {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(0, 255, 136, 0.08);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
}

.case-result-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-result-icon svg {
    width: 18px;
    height: 18px;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 3rem;
    position: relative;
}

.about-box::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 22px;
    z-index: -1;
    opacity: 0.3;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-list {
    list-style: none;
    margin-bottom: 2rem;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.about-list li::before {
    content: '✓';
    width: 24px;
    height: 24px;
    background: rgba(0, 255, 136, 0.2);
    color: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--primary);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.2), rgba(0, 255, 136, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
}

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

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Footer */
.footer {
    background: #060B14;
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Page Header */
.page-header {
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(0, 163, 255, 0.2) 0%, transparent 60%);
}

.page-header h1 {
    position: relative;
    margin-bottom: 1rem;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    position: relative;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-desc {
        margin: 0 auto 2.5rem;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .section {
        padding: 4rem 0;
    }
    .hero {
        padding-top: 100px;
    }
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .hero-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-trust {
        justify-content: flex-start;
    }
    .features-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* 联系页面移动端优化 */
    .contact-item {
        padding: var(--space-4);
    }
    
    .contact-icon {
        width: 48px;
        height: 48px;
    }
    
    .contact-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .contact-form {
        padding: var(--space-4);
        border-radius: var(--radius-xl);
    }
    
    .form-group input,
    .form-group textarea {
        min-height: 48px;
        font-size: var(--text-base);
    }
}

/* Touch Optimization - 触摸优化 */
@media (hover: none) and (pointer: coarse) {
    /* 触摸设备上禁用hover效果的transform */
    .product-card:active {
        transform: translateY(-3px);
    }
    
    /* 增大移动端触摸目标 */
    .btn {
        min-height: 48px;
        padding: 1rem 1.5rem;
    }
    
    /* 优化触摸滚动 */
    .mobile-menu {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
    
    /* 触摸时显示焦点指示 */
    a:active,
    button:active {
        opacity: 0.8;
    }
    
    /* 禁用图片拖动 */
    img {
        -webkit-user-drag: none;
        user-select: none;
        -webkit-touch-callout: none;
    }
    
    /* 优化滚动体验 */
    html {
        scroll-behavior: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    body {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-y: contain;
    }
}

/* 安全的触摸反馈 */
@media (hover: none) {
    .feature-item:active,
    .case-card:active,
    .contact-item:active {
        background: var(--bg-card-hover);
    }
}

/* Product Image Styles */
.product-image-wrapper {
    position: relative;
    width: 100%;
    height: 280px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a2332 0%, #0f1520 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.product-image-wrapper img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.product-image-wrapper:hover img {
    transform: scale(1.05);
}

.product-image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.product-image-placeholder .icon {
    font-size: 5rem;
    opacity: 0.8;
}

.product-image-placeholder .label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Product detail image */
.product-detail-image {
    position: relative;
    width: 100%;
    height: 350px;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a2332 0%, #0f1520 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-image img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.product-detail-image:hover img {
    transform: scale(1.03);
}

/* Scan line animation */
.product-detail-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 163, 255, 0.03) 0%,
        transparent 50%,
        rgba(0, 255, 136, 0.02) 100%
    );
    pointer-events: none;
}

/* Image source badge */
.image-source {
    position: absolute;
    bottom: 10px;
    right: 10px;
    padding: 0.25rem 0.5rem;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 4px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ============================================
   Product Catalog Layout (海康风格)
   ============================================ */

/* Product Catalog Container */
.product-catalog {
    display: flex;
    gap: 3rem;
    padding: 2rem 0;
}

/* Left Sidebar - Category Navigation */
.product-sidebar {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 163, 255, 0.3) transparent;
}

.product-sidebar-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: visible;
}

.sidebar-title {
    padding: 1.25rem 1.5rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    background: rgba(0, 163, 255, 0.05);
}

.sidebar-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 2px;
    margin-right: 0.75rem;
    vertical-align: middle;
}

.category-list {
    list-style: none;
}

.category-item {
    border-bottom: 1px solid var(--border);
}

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

.category-item > a {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.category-item > a svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-right: 0.75rem;
}

.category-item > a span,
.category-item > a .cat-text {
    flex: 1;
    text-align: left;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.category-item > a .arrow {
    margin-left: auto;
    flex-shrink: 0;
}

.category-item > a:hover,
.category-item > a.active {
    color: var(--primary);
    background: rgba(0, 163, 255, 0.08);
    padding-left: 1.75rem;
}

.category-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
}

/* Sub-category items */
.sub-category-list,
.subcategory-list {
    list-style: none;
    padding: 0.5rem 0;
    background: rgba(0, 0, 0, 0.2);
    display: none;
}

.sub-category-list li a,
.subcategory-list li a {
    display: block;
    padding: 0.6rem 1.5rem 0.6rem 2.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
    text-decoration: none;
}

.sub-category-list li a:hover,
.sub-category-list li a.active,
.subcategory-list li a:hover,
.subcategory-list li a.active {
    color: var(--primary);
    background: rgba(0, 163, 255, 0.05);
}

.category-item.expanded > .sub-category-list,
.category-item.expanded > .subcategory-list {
    display: block;
}

.category-item > a .arrow,
.category-item > a .expand-icon {
    transition: transform 0.3s ease;
    margin-left: 0.3rem;
    font-size: 0.7rem;
}

.category-item.expanded > a .arrow,
.category-item.expanded > a .expand-icon {
    transform: rotate(180deg);
}

/* Series count in subcategory */
.series-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.1rem 0.4rem;
    border-radius: 8px;
    margin-left: 0.3rem;
}

/* Light subcategory styles */
.sub-subcategory-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
}

.sub-subcategory-list li a {
    display: block;
    padding: 0.5rem 1rem 0.5rem 3rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-decoration: none;
    transition: var(--transition);
}

.sub-subcategory-list li a:hover,
.sub-subcategory-list li a.active {
    color: var(--primary);
    background: rgba(0, 163, 255, 0.05);
}

.submenu-toggle {
    cursor: pointer;
}

/* Product Main Content Area */
.product-main {
    flex: 1;
    min-width: 0;
}

/* Products Layout - 左右分栏 */
.products-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.category-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
}

.category-sidebar h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: rgba(0, 163, 255, 0.05);
    margin: 0;
}

.category-list {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: visible;
}

.products-main {
    flex: 1;
    min-width: 0;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* Pagination */
.pagination-area {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    gap: 0.9rem;
}
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.page-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 0.6rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-family: inherit;
}
.page-btn:hover:not(:disabled):not(.active) {
    border-color: var(--primary);
    color: var(--primary);
}
.page-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    cursor: default;
    box-shadow: 0 2px 12px rgba(0, 163, 255, 0.35);
}
.page-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}
.page-ellipsis {
    color: var(--text-muted);
    padding: 0 0.15rem;
    user-select: none;
}
.pagination-info {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}
@media (max-width: 640px) {
    .page-btn { min-width: 34px; height: 34px; font-size: 0.85rem; }
}

/* Product Item Card */
.product-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 163, 255, 0.15);
}

.product-item-image {
    position: relative;
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #1a2332 0%, #0f1520 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.product-item-image img {
    max-width: 100%;
    max-height: 140px;
    object-fit: contain;
    padding: 10px;
    transition: transform 0.4s ease;
}

.product-item:hover .product-item-image img {
    transform: scale(1.05);
}

.product-item-image .placeholder {
    font-size: 4rem;
    opacity: 0.6;
}

.product-item-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 0.3rem 0.6rem;
    background: rgba(0, 163, 255, 0.9);
    color: white;
    font-size: 0.75rem;
    border-radius: 4px;
    font-weight: 500;
}

.product-item-content {
    padding: 1.25rem;
}

.product-item-series {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 400;
}

.product-item-name {
    font-family: 'Rajdhani', 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.3rem;
    line-height: 1.3;
    letter-spacing: 0.03em;
}

.product-item-model {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.product-item-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.product-price {
    display: inline-flex;
    align-items: center;
    font-size: 1.05rem;
    color: #00FF88;
    font-weight: 600;
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 0.02em;
    background: rgba(0, 255, 136, 0.08);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.product-detail-btn {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, #0080cc 100%);
    color: white;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.product-detail-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 163, 255, 0.4);
}

.product-item-price {
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.95rem;
}

.product-item-action {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 500;
}

.product-item-action:hover {
    gap: 0.5rem;
}

/* Section Header with Filter */
.section-with-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* 产品筛选行布局 */
.section-with-filter {
    margin-bottom: 1.5rem;
}

.section-with-filter h2 {
    margin-bottom: 1rem;
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.filter-bar {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 0.9rem 1.1rem;
    background: rgba(0, 163, 255, 0.04);
    border: 1px solid rgba(0, 163, 255, 0.15);
    border-radius: 12px;
    margin-bottom: 1.2rem;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 76px;
    flex-shrink: 0;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.filter-btn .fc {
    font-size: 0.72rem;
    opacity: 0.65;
    font-weight: 400;
}

.filter-btn.active .fc {
    opacity: 0.85;
}

.filter-row .filter-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-row .filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-row .filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--bg-dark);
}

.color-filter {
    min-width: 50px;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(0, 163, 255, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

/* Product Detail Modal Trigger */
.product-modal-trigger {
    cursor: pointer;
}

/* Mobile Product Catalog Responsive */
@media (max-width: 1024px) {
    .product-sidebar {
        display: none;
    }
    
    .product-catalog {
        flex-direction: column;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

@media (max-width: 640px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .product-item-image {
        height: 160px;
    }
    
    .section-with-filter {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Enhanced Footer Styles */
.footer-main {
    padding: 4rem 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 163, 255, 0.02) 100%);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 280px;
}
.footer-cert {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}
.cert-badge {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    background: rgba(0, 163, 255, 0.1);
    border: 1px solid rgba(0, 163, 255, 0.2);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--primary);
}
.cert-badge svg {
    width: 14px;
    height: 14px;
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
}
.footer-social {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}
.social-link {
    width: 36px;
    height: 36px;
    background: rgba(0, 163, 255, 0.1);
    border: 1px solid rgba(0, 163, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}
.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}
.social-link svg {
    width: 18px;
    height: 18px;
}
.footer h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 0.75rem;
}
.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}
.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-block;
}
.footer-links a:hover {
    color: var(--primary);
    transform: translateX(4px);
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}
.footer-contact svg {
    width: 18px;
    height: 18px;
    stroke: var(--primary);
    stroke-width: 1.5;
    fill: none;
    flex-shrink: 0;
    margin-top: 0.15rem;
}
.footer-contact .contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.1rem;
}
.footer-contact .contact-value {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
}
.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 1.25rem 0;
    border-top: 1px solid rgba(0, 163, 255, 0.1);
}
.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.footer-bottom-content a {
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-bottom-content a:hover {
    color: var(--primary);
}
.footer-authorization {
    color: var(--primary);
    font-weight: 500;
}
.footer-icp-link {
    color: var(--text-muted);
    transition: var(--transition);
    white-space: nowrap;
}
.footer-icp-link:hover {
    color: var(--primary);
}

/* Footer Responsive */
@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
    .footer-cert {
        justify-content: center;
    }
    .footer-social {
        justify-content: center;
    }
}
@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .footer-cert {
        justify-content: center;
    }
    .footer-social {
        justify-content: center;
    }
    .footer-bottom-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

/* 页脚社交媒体二维码 */
.footer-qr-section {
    border-top: 1px solid rgba(0, 163, 255, 0.12);
    padding: 2rem 0 1.5rem;
    margin-top: 0.5rem;
}

.footer-qr-title {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
    letter-spacing: 1px;
}

.footer-qr-grid {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.footer-qr-item {
    text-align: center;
    width: 130px;
    position: relative;
    z-index: 1;
}

.footer-qr-item img {
    width: 130px;
    height: 130px;
    border-radius: 12px;
    border: 1px solid rgba(0, 163, 255, 0.2);
    background: #ffffff;
    padding: 6px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: block;
    cursor: pointer;
    position: relative;
}

.footer-qr-item img:hover {
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(0, 163, 255, 0.4), 0 0 60px rgba(0, 163, 255, 0.15);
    transform: scale(2.2);
    z-index: 100;
    position: relative;
}

.footer-qr-item span {
    display: block;
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.3;
    font-weight: 500;
}

@media (max-width: 768px) {
    .footer-qr-grid {
        gap: 1.5rem;
    }
    .footer-qr-item {
        width: 100px;
    }
    .footer-qr-item img {
        width: 100px;
        height: 100px;
    }
    .footer-qr-item img:hover {
        transform: scale(1.8);
    }
}

/* 联系页面社交媒体区 */
.social-media-section {
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}

.social-media-section .section-header {
    margin-bottom: 2rem;
}

.social-qr-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 720px;
    margin: 0 auto;
}

.social-qr-item {
    text-align: center;
    position: relative;
    z-index: 1;
}

.social-qr-item img {
    width: 100%;
    max-width: 150px;
    border-radius: 16px;
    border: 1px solid rgba(0, 163, 255, 0.25);
    background: #ffffff;
    padding: 8px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 163, 255, 0.12);
    cursor: pointer;
    display: block;
    margin: 0 auto;
}

.social-qr-item img:hover {
    border-color: var(--primary);
    box-shadow: 0 16px 50px rgba(0, 163, 255, 0.35), 0 0 80px rgba(0, 163, 255, 0.1);
    transform: scale(2);
    z-index: 100;
    position: relative;
}

.social-qr-item .qr-label {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.social-qr-item .qr-desc {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 640px) {
    .social-qr-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    .social-qr-item img {
        max-width: 120px;
    }
    .social-qr-item img:hover {
        transform: scale(1.6);
    }
}

/* 产品详情页底部扫码咨询 */
.product-qr-section {
    margin-top: 3rem;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.08) 0%, rgba(0, 255, 136, 0.04) 100%);
    border: 1px solid rgba(0, 163, 255, 0.15);
    border-radius: 20px;
    padding: 2rem 2.5rem;
}

.product-qr-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.product-qr-text h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.product-qr-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.product-qr-codes {
    display: flex;
    gap: 1.5rem;
    flex-shrink: 0;
}

.product-qr-item {
    text-align: center;
    width: 110px;
    position: relative;
    z-index: 1;
}

.product-qr-item img {
    width: 110px;
    height: 110px;
    border-radius: 12px;
    background: #ffffff;
    border: 1px solid rgba(0, 163, 255, 0.2);
    padding: 5px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: block;
    cursor: pointer;
    position: relative;
}

.product-qr-item img:hover {
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(0, 163, 255, 0.35);
    transform: scale(2);
    z-index: 100;
    position: relative;
}

.product-qr-item span {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

@media (max-width: 768px) {
    .product-qr-content {
        flex-direction: column;
        text-align: center;
    }
    .product-qr-text h3 {
        font-size: 1.25rem;
    }
    .product-qr-codes {
        gap: 1rem;
    }
    .product-qr-item {
        width: 90px;
    }
    .product-qr-item img {
        width: 90px;
        height: 90px;
    }
    .product-qr-item img:hover {
        transform: scale(1.6);
    }
}

/* FAQ 折叠面板 */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(0, 163, 255, 0.15);
    border-radius: 12px;
    margin-bottom: 0.75rem;
    background: rgba(0, 163, 255, 0.04);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(0, 163, 255, 0.3);
    background: rgba(0, 163, 255, 0.07);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-arrow {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: var(--primary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin: 0;
}

/* ============================================
   P2: 移动端增强优化
   ============================================ */

/* 移动端触摸优化 - 确保触摸目标最小44px */
@media (max-width: 968px) {
    /* 移动端汉堡菜单优化 */
    .mobile-toggle {
        width: 48px;
        height: 48px;
        justify-content: center;
        align-items: center;
        border-radius: var(--radius-lg);
        transition: var(--transition);
    }
    
    .mobile-toggle:hover {
        background: rgba(0, 163, 255, 0.1);
    }
    
    .mobile-toggle span {
        width: 22px;
        height: 2.5px;
    }
    
    /* 移动端菜单面板优化 */
    .mobile-menu {
        width: 320px;
        padding-top: 6rem;
    }
    
    /* 移动端导航链接触摸优化 */
    .mobile-menu .nav-links a {
        min-height: 56px;
        display: flex;
        align-items: center;
        font-size: var(--text-lg);
    }
    
    /* 防止页面滚动穿透 */
    body.menu-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }
}

/* 移动端Hero区域优化 */
@media (max-width: 768px) {
    .hero {
        padding: var(--space-16) 0 var(--space-12);
        min-height: auto;
    }
    
    .hero-content {
        padding: var(--space-8) var(--space-4);
    }
    
    .hero-badge {
        font-size: var(--text-sm);
        padding: var(--space-2) var(--space-3);
        margin-bottom: var(--space-4);
    }
    
    .hero h1 {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: var(--space-4);
    }
    
    .hero-desc {
        font-size: var(--text-base);
        margin-bottom: var(--space-6);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* 减少Hero粒子动画以提升性能 */
    .hero-particle:nth-child(n+4) {
        display: none;
    }
    
    .hero-card {
        padding: var(--space-4);
    }
    
    .hero-card h3,
    .hero-card-title {
        font-size: var(--text-base);
    }
    
    .hero-product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.4rem;
    }
    
    .hero-product-item {
        padding: 0.5rem 0.2rem;
    }
    
    .hero-product-item svg {
        width: 22px;
        height: 22px;
    }
    
    .hero-product-item span {
        font-size: 0.7rem;
    }
    
    .hero-auth-badge {
        font-size: 0.72rem;
        padding: 0.3rem 0.8rem 0.3rem 0.5rem;
    }
    
    .hero-trust {
        font-size: 0.72rem;
        gap: 0.25rem;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .hero h1 {
        font-size: clamp(1.6rem, 9vw, 2rem);
    }
    
    .hero-particle {
        width: 4px;
        height: 4px;
    }
    
    /* 简化背景效果以提升性能 */
    .hero-bg::before,
    .hero-bg::after {
        opacity: 0.3;
    }
}

/* 移动端产品卡片优化 */
@media (max-width: 768px) {
    .product-item {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .product-item:active {
        transform: scale(0.98);
    }
    
    .product-item-image {
        height: 180px;
    }
    
    .product-item-info {
        padding: var(--space-3);
    }
    
    .product-item-name {
        font-size: var(--text-sm);
        -webkit-line-clamp: 2;
    }
    
    .product-item-model {
        font-size: var(--text-base);
    }
    
    /* 移动端分类选择器 */
    .mobile-category-selector {
        display: none;
        margin-bottom: var(--space-4);
        padding: var(--space-3);
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
    }
    
    .mobile-category-selector label {
        display: block;
        font-size: var(--text-sm);
        color: var(--text-secondary);
        margin-bottom: var(--space-2);
    }
    
    .mobile-select {
        width: 100%;
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-base);
        font-family: inherit;
        color: var(--text-primary);
        background: var(--bg-dark);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right var(--space-3) center;
        cursor: pointer;
        min-height: 48px;
    }
    
    .mobile-select:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.1);
    }
}

@media (max-width: 1024px) {
    .mobile-category-selector {
        display: block;
    }
}

/* 移动端按钮触摸反馈 */
@media (max-width: 968px) {
    .btn {
        min-height: 48px;
        padding: var(--space-3) var(--space-6);
        -webkit-tap-highlight-color: transparent;
    }
    
    .btn:active {
        transform: scale(0.97);
    }
}

/* 移动端表单输入优化 */
@media (max-width: 768px) {
    .form-input,
    .form-select,
    .form-textarea {
        min-height: 48px;
        font-size: var(--text-base);
        padding: var(--space-3) var(--space-4);
    }
    
    .form-label {
        font-size: var(--text-sm);
        margin-bottom: var(--space-2);
    }
}

/* 移动端卡片网格优化 */
@media (max-width: 640px) {
    .card {
        border-radius: var(--radius-lg);
    }
    
    .feature-card {
        padding: var(--space-4);
    }
}

/* 移动端图片懒加载占位符优化 */
@media (max-width: 768px) {
    img[loading="lazy"] {
        background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-hover) 100%);
    }
}

/* 移动端模态框优化 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: var(--space-4);
        max-height: calc(100vh - var(--space-8));
        border-radius: var(--radius-xl);
    }
    
    .modal-close {
        width: 44px;
        height: 44px;
        top: var(--space-2);
        right: var(--space-2);
    }
}

/* 移动端滚动优化 */
@media (max-width: 968px) {
    html {
        scroll-behavior: auto;
    }
    
    /* 平滑滚动但不在移动端使用 */
    .smooth-scroll {
        scroll-behavior: auto;
    }
}

/* 减少动画尊重用户偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 暗色模式增强 */
@media (prefers-color-scheme: dark) {
    :root {
        /* 已使用深色主题变量，此处为兼容性增强 */
    }
}

/* ============================================
   导航搜索框
   ============================================ */

/* 搜索外层容器 */
.nav-search-wrap {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1;
    max-width: 320px;
    margin-left: 2rem;
}

/* 搜索框容器 */
.nav-search-box {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
}

/* 搜索输入框 */
.nav-search-box input {
    width: 100%;
    padding: 0.5rem 2.75rem 0.5rem 2.75rem;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 0.875rem;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.nav-search-box input::placeholder {
    color: var(--text-muted);
}
.nav-search-box input:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.1);
}

/* 搜索图标 */
.nav-search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
}
.nav-search-icon svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* 清除按钮 */
.nav-search-clear {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    display: none;
    border-radius: 4px;
    line-height: 1;
    font-size: 1rem;
}
.nav-search-clear:hover {
    color: var(--text-primary);
}
.nav-search-clear.show {
    display: block;
}

/* 搜索下拉框 */
.nav-search-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    width: 100%;
    max-height: 480px;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 163, 255, 0.1);
    z-index: 1000;
    display: none;
}
.nav-search-dropdown.show {
    display: block;
}

/* 下拉项 */
.search-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 1px solid rgba(0, 163, 255, 0.08);
    text-decoration: none;
    color: inherit;
}
.search-item:last-child {
    border-bottom: none;
}
.search-item:hover {
    background: var(--bg-card-hover);
}
.search-item:hover .search-item-model {
    color: var(--primary);
}

.search-item-icon {
    width: 36px;
    height: 36px;
    background: rgba(0, 163, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.search-item-icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--primary);
    fill: none;
    stroke-width: 2;
}

.search-item-info {
    flex: 1;
    min-width: 0;
}

.search-item-model {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.2s;
}

.search-item-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

.search-item-cat {
    font-size: 0.7rem;
    color: var(--primary);
    background: rgba(0, 163, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 无结果提示 */
.search-no-result {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}
.search-no-result strong {
    color: var(--text-primary);
}

/* 搜索提示 */
.search-hint {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-bottom: 1px solid rgba(0, 163, 255, 0.08);
}

/* 移动端 */
@media (max-width: 1024px) {
    .nav-search-wrap {
        max-width: 240px;
        margin-left: 1rem;
    }
}
@media (max-width: 768px) {
    .nav-search-wrap {
        max-width: 180px;
        margin-left: 0.5rem;
    }
    .nav-search-dropdown {
        position: fixed;
        left: 1rem;
        right: 1rem;
        width: auto;
        top: 70px;
    }
}
@media (max-width: 600px) {
    .nav-inner {
        gap: 0.25rem;
    }
    .nav-search-wrap {
        max-width: 120px;
        margin-left: 0.25rem;
    }
    .nav-search-box input {
        padding: 0.4rem 2rem 0.4rem 2rem;
        font-size: 0.8rem;
    }
    .nav-search-icon {
        left: 0.4rem;
    }
    .nav-search-icon svg {
        width: 14px;
        height: 14px;
    }
    .mobile-toggle {
        margin-left: 0.25rem;
    }
}

/* =========================================================
   扫码添加微信弹窗 — 产品详情页 下载规格书/下载3D模型/在线咨询
   ========================================================= */
.wxqr-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: rgba(3, 8, 20, 0.74);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}
.wxqr-overlay.open {
    opacity: 1;
    visibility: visible;
}
.wxqr-modal {
    position: relative;
    width: 100%;
    max-width: 380px;
    padding: 34px 28px 26px;
    background: linear-gradient(165deg, #101f38 0%, var(--bg-dark) 55%, #0c1e31 100%);
    border: 1px solid rgba(0, 163, 255, 0.35);
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55), 0 0 44px rgba(0, 163, 255, 0.14);
    transform: translateY(16px) scale(0.96);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: calc(100vh - 32px);
    overflow-y: auto;
}
.wxqr-overlay.open .wxqr-modal {
    transform: none;
}
.wxqr-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    font-size: 1.4rem;
    line-height: 1;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
}
.wxqr-close:hover {
    color: #ffffff;
    border-color: var(--primary);
    background: rgba(0, 163, 255, 0.12);
}
.wxqr-icon {
    display: block;
    width: 46px;
    height: 46px;
    margin: 0 auto 12px;
    color: var(--primary);
}
.wxqr-modal h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 1.35rem;
}
.wxqr-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}
.wxqr-qr {
    width: 200px;
    height: 200px;
    margin: 18px auto 14px;
    padding: 10px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06);
}
.wxqr-qr img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 8px;
}
.wxqr-tip {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.7;
}
.wxqr-model {
    margin-top: 10px;
    color: var(--primary);
    font-size: 0.8rem;
    word-break: break-all;
}
.wxqr-trigger {
    cursor: pointer;
}
.wxqr-trigger:hover {
    border-color: var(--primary);
    background: rgba(0, 163, 255, 0.06);
}
@media (max-width: 480px) {
    .wxqr-modal {
        padding: 28px 18px 20px;
    }
    .wxqr-qr {
        width: 168px;
        height: 168px;
    }
}

/* =========================================================
   应用案例页 — 行业分类导航 + 行业区块 (2026-09-06)
   ========================================================= */
.industry-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
    gap: 14px;
    margin: 8px 0 56px;
}
.industry-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
    overflow: hidden;
}
.industry-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(120px 80px at 50% 0%, rgba(0, 163, 255, 0.16), transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.industry-card:hover,
.industry-card.active {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35), var(--glow);
}
/* active 比 hover 更醒目的"当前行业"标记（默认视图用户能一眼看到在看哪个行业）*/
.industry-card.active {
    background: rgba(0, 163, 255, 0.10);
    box-shadow: 0 0 0 1px var(--primary) inset, 0 10px 28px rgba(0, 163, 255, 0.18), var(--glow);
}
.industry-card.active .industry-card-name {
    color: var(--primary);
}
.industry-card.active::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
}
.industry-card:hover::before,
.industry-card.active::before {
    opacity: 1;
}
.industry-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.12), rgba(0, 255, 136, 0.06));
    border: 1px solid rgba(0, 163, 255, 0.2);
}
.industry-card-icon svg {
    width: 60px;
    height: 60px;
}
.industry-card-name {
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 600;
}
.industry-card-count {
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.4px;
}

/* 行业案例区块 */
.industry-section {
    scroll-margin-top: 96px;
    padding: 12px 0 28px;
}
.industry-section + .industry-section {
    border-top: 1px solid rgba(0, 163, 255, 0.12);
    margin-top: 8px;
}
.industry-head {
    margin-bottom: 28px;
}
.industry-badge {
    display: inline-block;
    padding: 4px 14px;
    margin-bottom: 10px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(0, 163, 255, 0.18), rgba(0, 255, 136, 0.1));
    border: 1px solid rgba(0, 163, 255, 0.35);
    color: var(--primary);
    font-size: 0.82rem;
    letter-spacing: 1px;
    font-weight: 600;
}
.industry-head h2 {
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    margin-bottom: 10px;
}
.industry-desc {
    color: var(--text-secondary);
    max-width: 860px;
    line-height: 1.8;
}

/* 无 JS 兜底说明 */
.case-fallback {
    padding: 26px 28px;
    margin-bottom: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--primary);
    border-radius: 14px;
    color: var(--text-secondary);
    line-height: 2;
}
.case-fallback a {
    color: var(--primary);
}

@media (max-width: 640px) {
    .industry-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .industry-card {
        padding: 14px 8px 12px;
    }
    .industry-card-icon {
        width: 60px;
        height: 60px;
    }
    .industry-card-icon svg {
        width: 48px;
        height: 48px;
    }
    .industry-card-count {
        font-size: 0.72rem;
    }
}

/* =========================================================
   应用案例页 v2 — 行业Tab视图：全部案例卡 + 当前视图提示条 (2026-09-06)
   ========================================================= */
.industry-card.all-card {
    background: linear-gradient(160deg, rgba(0, 163, 255, 0.14), rgba(0, 255, 136, 0.05));
    border-color: rgba(0, 163, 255, 0.5);
}
.industry-card.all-card .industry-card-name {
    color: var(--primary);
}
.case-viewbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 14px;
    padding: 11px 18px;
    margin: 2px 0 26px;
    background: rgba(0, 163, 255, 0.07);
    border: 1px solid rgba(0, 163, 255, 0.28);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
}
.case-viewbar b {
    color: var(--primary);
    font-weight: 600;
}
.case-viewbar-icon {
    color: var(--primary);
    line-height: 1;
}
.case-viewbar .view-all-link {
    margin-left: auto;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    white-space: nowrap;
    transition: var(--transition);
}
.case-viewbar .view-all-link:hover {
    text-shadow: 0 0 12px rgba(0, 163, 255, 0.6);
}
@media (max-width: 640px) {
    .case-viewbar .view-all-link {
        margin-left: 0;
        width: 100%;
    }
}

/* =========================================================
   行业导航卡 — 实景质感配图 (2026-09-06)
   ========================================================= */
.industry-card-icon {
    position: relative;
    overflow: hidden;
}
.industry-nav-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 13px;
    box-shadow: 0 0 0 1px rgba(0, 163, 255, 0.28);
}
.industry-nav-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.industry-card.all-card .industry-card-icon {
    overflow: visible;
}
@media (max-width: 640px) {
    .industry-nav-img {
        border-radius: 10px;
    }
}