/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 允许文本输入的选择 */
input,
textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

:root {
    /* 字体系统 - 按照文档要求 */
    --font-title: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-body: 'Roboto', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    /* 主色调 - 米白色 */
    --primary-color: #F8F7F4;
    --primary-light: #F8F7F4;

    /* 辅助色1 - 科技浅蓝 */
    --accent-color: #6B859E;
    --accent-light: rgba(107, 133, 158, 0.1);

    /* 辅助色2 - 科技浅青 */
    --secondary-color: #5FA8A3;
    --secondary-light: rgba(95, 168, 163, 0.1);

    /* 辅助色3 - 科技浅紫 */
    --purple-color: #8A7FAA;
    --purple-light: rgba(138, 127, 170, 0.1);

    /* 强调色 - 科技深蓝 */
    --highlight-color: #165DFF;
    --highlight-dark: #0F4CD1;

    /* 中性色 */
    --bg-white: #FFFFFF;
    --bg-card: #F8F7F4;
    --bg-light: #FAFAFA;

    /* 文字颜色 - 严格按照文档要求 */
    --text-title: #333333;
    --text-body: #666666;
    --text-secondary: #666666;
    --text-hint: #999999;
    --text-primary: #333333;

    /* 边框颜色 */
    --border-color: #E5E6EB;

    /* 字号系统 - PC端响应式自动适配 */
    --font-hero: clamp(36px, 5vw, 48px);
    --font-section-title: clamp(24px, 3vw, 28px);
    --font-card-title: clamp(18px, 2.5vw, 20px);
    --font-body: clamp(14px, 1.5vw, 16px);
    --font-caption: clamp(12px, 1.2vw, 13px);
    --border-light: #EEEEEE;

    /* 渐变 */
    --gradient-1: linear-gradient(135deg, #6B859E 0%, #5FA8A3 100%);
    --gradient-2: linear-gradient(135deg, #165DFF 0%, #6B859E 100%);
    --gradient-hover: linear-gradient(135deg, #5FA8A3 0%, #165DFF 100%);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(229, 230, 235, 0.4);
    --shadow-md: 0 4px 16px rgba(229, 230, 235, 0.5);
    --shadow-lg: 0 8px 24px rgba(229, 230, 235, 0.6);
    --shadow-hover: 0 12px 32px rgba(22, 93, 255, 0.15);

    /* 间距系统 */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 8px;
    --radius-lg: 8px;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    /* 性能优化：启用GPU加速 */
    will-change: scroll-position;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    /* 性能优化：避免图片加载时的布局偏移 */
    aspect-ratio: attr(width) / attr(height);
}

body {
    font-family: var(--font-body);
    background-color: var(--primary-color);
    color: var(--text-body);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: var(--font-body);
}

/* ============ 全局动画类 - 禁用以提升性能 ============ */
.fade-in-up, .fade-in-left, .fade-in-right, .scale-in {
    opacity: 1;
    transform: none;
    transition: none;
}

/*
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}
*/

.fade-in-right, .scale-in, .fade-in-right.visible, .scale-in.visible {
    opacity: 1;
    transform: none;
    transition: none;
}

/* 延迟动画 */
.delay-100 { transition-delay: 0.1s !important; }
.delay-200 { transition-delay: 0.2s !important; }
.delay-300 { transition-delay: 0.3s !important; }
.delay-400 { transition-delay: 0.4s !important; }
.delay-500 { transition-delay: 0.5s !important; }
.delay-600 { transition-delay: 0.6s !important; }

/* 浮动动画 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.float-animation {
    animation: float 4s ease-in-out infinite;
}

/* 脉冲动画 */
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

/* 旋转动画 */
@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.rotate-slow {
    animation: rotate-slow 20s linear infinite;
}

/* 光晕动画 */
@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(107, 133, 158, 0.2); }
    50% { box-shadow: 0 0 40px rgba(107, 133, 158, 0.4); }
}

.glow-animation {
    animation: glow 3s ease-in-out infinite;
}

/* 波纹动画 */
@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.ripple-animation::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--highlight-color);
    border-radius: inherit;
    animation: ripple 2s ease-out infinite;
}

/* 扫描动画 */
@keyframes scan {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(100%);
        opacity: 0;
    }
}

.scan-animation {
    position: relative;
    overflow: hidden;
}

.scan-animation::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(22, 93, 255, 0.1) 50%,
        transparent 100%);
    animation: scan 3s ease-in-out infinite;
}

/* 旋转光圈动画 */
@keyframes rotateRing {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.rotate-ring {
    position: relative;
}

.rotate-ring::before {
    content: '';
    position: absolute;
    inset: -10px;
    border: 2px solid transparent;
    border-top-color: var(--highlight-color);
    border-radius: 50%;
    animation: rotateRing 3s linear infinite;
}

.rotate-ring::after {
    content: '';
    position: absolute;
    inset: -15px;
    border: 2px solid transparent;
    border-bottom-color: var(--secondary-color);
    border-radius: 50%;
    animation: rotateRing 4s linear infinite reverse;
}



/* 文字打字机效果 */
@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    0%, 50% { border-color: var(--highlight-color); }
    51%, 100% { border-color: transparent; }
}

.typewriter {
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--highlight-color);
    animation: typewriter 2s steps(20) forwards, blink 0.7s step-end infinite;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(248, 247, 244, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
}

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

.nav-brand h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-title);
    letter-spacing: -0.5px;
}

.nav-brand .tagline {
    font-size: 10px;
    color: var(--text-hint);
    letter-spacing: 1.5px;
    margin-left: 8px;
}

.nav-brand .tagline {
    font-size: 10px;
    color: var(--text-secondary);
    letter-spacing: 3px;
    margin-left: 5px;
}

.nav-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: var(--text-body);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
    position: relative;
    font-weight: 400;
}

.nav-menu a:hover {
    color: var(--highlight-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--highlight-color);
    transition: all 0.3s;
    border-radius: 1px;
}

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

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

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-title);
    transition: all 0.3s;
}

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

.particles {
    display: none;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-color);
    background-image:
        linear-gradient(rgba(107, 133, 158, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(107, 133, 158, 0.08) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    animation: bgMove 20s linear infinite;
}

@keyframes bgMove {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* 网格脉冲动画 */
@keyframes gridPulse {
    0%, 100% {
        opacity: 0.08;
    }
    50% {
        opacity: 0.15;
    }
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(102, 126, 234, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    animation: gridPulse 4s ease-in-out infinite, bgMove 25s linear infinite;
    opacity: 0.5;
}

/* 网格扫描线动画 */
.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.03) 50%, transparent 100%);
    background-size: 100% 200%;
    animation: scanLine 8s linear infinite;
    pointer-events: none;
}

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

/* 网格光晕效果 */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-color);
    background-image:
        linear-gradient(rgba(107, 133, 158, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(107, 133, 158, 0.08) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    animation: bgMove 20s linear infinite;
    overflow: hidden;
}



.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-label {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: var(--radius-sm);
    color: #667eea;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: var(--space-md);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: var(--font-hero);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.5px;
    color: var(--text-title);
    font-family: var(--font-title);
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-body);
    margin-bottom: var(--space-lg);
    font-weight: 400;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 30px -10px rgba(102, 126, 234, 0.25);
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    animation: statFadeIn 0.6s ease-out forwards;
}

.stat-item:nth-child(1) { animation-delay: 0.2s; }
.stat-item:nth-child(2) { animation-delay: 0.4s; }
.stat-item:nth-child(3) { animation-delay: 0.6s; }

@keyframes statFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xs);
    font-family: 'Inter', 'Roboto', sans-serif;
    animation: statValue 2s ease-out infinite;
}

@keyframes statValue {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.stat-name {
    display: block;
    font-size: 12px;
    color: var(--text-body);
    font-weight: 400;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent 0%, var(--accent-color) 50%, transparent 100%);
    opacity: 0;
    animation: dividerFadeIn 0.6s ease-out 0.5s forwards;
}

@keyframes dividerFadeIn {
    to {
        opacity: 0.5;
    }
}

.stat-divider:nth-of-type(1) { animation-delay: 0.3s; }
.stat-divider:nth-of-type(2) { animation-delay: 0.5s; }

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

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

.btn-white:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.btn-link {
    background: transparent;
    border: none;
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    padding: 14px 20px;
    transition: all 0.3s;
}

.btn-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    min-height: 44px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3), 0 2px 4px rgba(102, 126, 234, 0.2);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4), 0 4px 8px rgba(102, 126, 234, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid #667eea;
    color: #667eea;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    border-color: #667eea;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.btn-block {
    width: 100%;
    display: block;
}

/* 区块通用样式 */
section {
    padding: 80px 0;
}

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

.section-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(22, 93, 255, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    transition: all 0.6s ease-out;
}

.section-header:hover::before {
    width: 300px;
    height: 300px;
}

.section-title {
    font-size: var(--font-section-title);
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--text-title);
    letter-spacing: -0.5px;
    position: relative;
    display: inline-block;
    font-family: var(--font-title);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--highlight-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 12px;
    color: var(--secondary-color);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* 产品中心 */
.products {
    background: var(--primary-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-lg);
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    box-shadow: var(--shadow-sm);
    z-index: 1;
}

.product-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(22, 93, 255, 0.03) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.product-card:hover::after {
    opacity: 1;
    animation: float 6s ease-in-out infinite;
}



.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--highlight-color), transparent);
    transition: left 0.6s;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    border-color: var(--highlight-color);
    box-shadow: 0 25px 50px -12px rgba(22, 93, 255, 0.15), 0 0 0 1px rgba(22, 93, 255, 0.05);
    transform: translateY(-2px);
}

/* 隐藏sparkle元素，避免溢出 */
.sparkle {
    display: none !important;
    visibility: hidden;
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    padding: 4px 12px;
    background: var(--secondary-color);
    color: white;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    z-index: 2;
}

.product-badge.featured {
    background: var(--highlight-color);
}

.product-image {
    height: 280px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-real-image {
    max-width: 100%;
    max-height: 100%;
    height: 100%;
    width: auto;
    object-fit: contain;
    padding: 20px 0;
    transition: transform 0.3s, filter 0.3s;
    mix-blend-mode: normal;
    background: transparent;
    box-sizing: border-box;
    display: block;
    max-width: 70%;
}

.product-card:hover .product-real-image {
    transform: scale(1.02);
    filter: brightness(1.05);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: rgba(107, 133, 158, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-icon {
    font-size: 100px;
    position: relative;
    z-index: 1;
    transition: transform 0.4s;
    filter: drop-shadow(0 4px 20px rgba(107, 133, 158, 0.2));
}

.product-icon svg {
    stroke-width: 2px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-icon {
    transform: scale(1.1);
}

.product-content {
    padding: var(--space-lg);
}

.product-series {
    font-size: 12px;
    color: var(--secondary-color);
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.product-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-title);
}

.product-subtitle {
    font-size: 13px;
    color: var(--text-body);
    margin-bottom: var(--space-md);
}

.product-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-body);
    font-weight: 400;
}

.highlight-icon {
    color: #64748b;
    opacity: 0.7;
}

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

/* 优势特色 */
.advantages {
    background: var(--bg-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.advantage-card {
    text-align: left;
    padding: var(--space-lg);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}



.advantage-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(22, 93, 255, 0.03) 60deg, transparent 120deg, rgba(95, 168, 163, 0.03) 180deg, transparent 240deg, rgba(22, 93, 255, 0.03) 300deg, transparent 360deg);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.advantage-card:hover::after {
    opacity: 1;
    animation: rotate 8s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 2px solid var(--accent-color);
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s;
}

.advantage-card:hover::before {
    opacity: 0.3;
    animation: ripple 2s ease-out infinite;
}

.advantage-card:hover {
    border-color: var(--highlight-color);
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.02) 0%, rgba(95, 168, 163, 0.02) 100%);
    box-shadow: 0 20px 40px -12px rgba(22, 93, 255, 0.15), 0 0 0 1px rgba(22, 93, 255, 0.08);
}

.advantage-number {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 32px;
    font-weight: 700;
    color: var(--border-color);
    line-height: 1;
}

.advantage-card h3 {
    font-size: 16px;
    margin-bottom: var(--space-sm);
    font-weight: 600;
    color: var(--text-title);
}

.advantage-card p {
    color: var(--text-body);
    font-size: 13px;
    line-height: 1.6;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--text-body);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    position: relative;
    padding: 20px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    overflow: hidden;
}



.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.02) 0%, rgba(95, 168, 163, 0.02) 100%);
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.stat-item::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle at center, rgba(22, 93, 255, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.stat-item:hover::after {
    opacity: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.8; }
    50% { transform: translate(-10px, -10px) scale(1.1); opacity: 0.4; }
}

.stat-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--highlight-color);
}

.stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-body);
    margin-top: var(--space-xs);
}

.image-placeholder {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    text-align: center;
}

.placeholder-content span,
.placeholder-content svg {
    font-size: 100px;
    display: block;
    margin-bottom: 15px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.placeholder-content {
    padding: 30px;
}

.placeholder-content .icon-wrapper {
    width: 140px;
    height: 140px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.placeholder-content .icon-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(107, 133, 158, 0.08), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.placeholder-content svg {
    width: 100px;
    height: 100px;
    animation: float 4s ease-in-out infinite;
    filter: grayscale(10%);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-image:hover .icon-wrapper {
    background: #6B859E;
    border-color: transparent;
    box-shadow: 0 15px 40px rgba(107, 133, 158, 0.4);
    transform: scale(1.05);
}

.about-image:hover .icon-wrapper svg {
    filter: grayscale(0%);
    transform: scale(1.1);
}

.about-image:hover .placeholder-content svg {
    transform: scale(1.1);
}

.placeholder-content p {
    color: var(--text-body);
    font-size: 16px;
}

.about-real-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-real-image:hover {
    transform: scale(1.02);
}

/* 联系我们 */
.contact {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.info-icon {
    font-size: 20px;
    min-width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.info-icon svg {
    color: var(--accent-color);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.info-icon svg {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    filter: grayscale(10%);
    position: relative;
    z-index: 1;
}

.info-item:hover .info-icon {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    transform: translateY(-2px);
}

.info-item:hover .info-icon svg {
    color: var(--highlight-color);
}

.info-text h4 {
    font-size: 14px;
    margin-bottom: var(--space-xs);
    color: var(--text-title);
    font-weight: 600;
    font-family: var(--font-title);
}

.info-text p {
    color: var(--text-body);
    font-size: 14px;
    font-family: var(--font-body);
}

.contact-form {
    background: var(--bg-white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 14px;
    color: var(--text-title);
    font-weight: 500;
    font-family: var(--font-body);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-title);
    font-size: 14px;
    font-family: var(--font-body);
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--highlight-color);
    background: var(--bg-white);
    box-shadow: 0 0 0 2px rgba(22, 93, 255, 0.1);
}

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

/* 页脚 */
.footer {
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.02) 0%, rgba(95, 168, 163, 0.02) 100%);
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 1px solid rgba(22, 93, 255, 0.08);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--highlight-color), var(--secondary-color), transparent);
}

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

.footer-brand h3 {
    font-size: 16px;
    margin-bottom: var(--space-xs);
    color: var(--text-title);
    font-weight: 600;
}

.footer-brand p {
    color: var(--text-body);
    font-size: 13px;
}

.footer-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    flex-shrink: 0;
}

.footer-links h4 {
    font-size: 14px;
    margin-bottom: var(--space-md);
    color: var(--text-title);
    font-weight: 600;
}

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

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

.footer-links a {
    color: var(--text-body);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--highlight-color);
    transform: translateX(3px);
    display: inline-block;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-hint);
    font-size: 12px;
}

/* 响应式设计 - 符合文档要求 */
@media (max-width: 1199px) {
    /* 平板端适配 */
    .products-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .hero-title {
        font-size: 40px;
    }
}

@media (max-width: 767px) {
    /* 移动端适配 (≤767px) */
    .navbar {
        padding: 12px 0;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        gap: 0;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        z-index: 999;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        display: block;
        padding: 16px 0;
        font-size: 15px;
        text-align: center;
        color: var(--text-body);
    }

    .nav-menu a:hover {
        background: var(--bg-light);
        color: var(--highlight-color);
    }

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

    .hero-bg {
        background: var(--primary-color);
        background-image:
            linear-gradient(rgba(107, 133, 158, 0.1) 1px, transparent 1px),
            linear-gradient(90deg, rgba(107, 133, 158, 0.1) 1px, transparent 1px);
        background-size: 40px 40px;
        background-position: center;
    }

    .hero {
        min-height: auto;
        padding: 140px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
        margin-bottom: var(--space-md);
    }

    .stat-divider {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-label {
        margin-bottom: var(--space-md);
        font-size: 11px;
    }

    .section-title {
        font-size: 24px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    /* 移动端产品图片居中修复 */
    .product-image {
        height: 240px;
    }

    .product-real-image {
        max-width: 80%;
        max-height: 220px;
        margin: 0 auto;
        display: block;
        object-fit: contain;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .contact-info {
        text-align: left;
    }

    .info-item {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .info-icon {
        min-width: 40px;
        height: 40px;
    }

    .info-icon svg {
        width: 24px !important;
        height: 24px !important;
        max-width: 24px;
        max-height: 24px;
    }

    .info-text h4 {
        font-size: 13px;
    }

    .info-text p {
        font-size: 12px;
    }

    .contact-form {
        padding: var(--space-md);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 40px;
    }

    .hero-title {
        font-size: 28px;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .hero-stats {
        padding: var(--space-md);
    }

    .section-title {
        font-size: 20px;
    }

    .section-subtitle {
        font-size: 11px;
    }

    .stat-value {
        font-size: 20px;
    }

    .stat-name {
        font-size: 11px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    .product-card {
        border-radius: var(--radius-md);
    }

    .product-content {
        padding: var(--space-md);
    }

    .product-title {
        font-size: 16px;
    }

    .product-subtitle {
        font-size: 12px;
    }

    .product-highlights {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .product-footer {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .product-badge {
        font-size: 11px;
        padding: 4px 10px;
    }

    .advantage-card {
        padding: var(--space-md);
    }

    .advantage-number {
        font-size: 24px;
    }

    .advantage-card h3 {
        font-size: 15px;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .stat-number {
        font-size: 20px;
    }

    .stat-label {
        font-size: 11px;
    }

    .form-group {
        margin-bottom: var(--space-sm);
    }

    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 13px;
    }

    .form-group label {
        font-size: 12px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        text-align: center;
        gap: var(--space-lg);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-links ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--space-xs);
    }
}

/* 产品详情弹窗 */
.product-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    padding: 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.product-modal.active {
    display: flex;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1;
}

.modal-content {
    position: relative;
    background: #FFFFFF !important;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    max-width: 1100px;
    width: 90%;
    margin: 0 auto;
    z-index: 2;
    animation: modalSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15),
                0 0 0 1px rgba(107, 133, 158, 0.1);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-40px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 20px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10;
}

.modal-close:hover {
    background: #ef4444;
    transform: rotate(90deg);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.modal-body {
    padding: 0;
    overflow: hidden;
}

/* 产品详情页面样式 */
.product-detail-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    margin-bottom: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    min-height: 500px;
}

.product-detail-image {
    height: 100%;
    min-height: 500px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: zoom-in;
    transition: background-color 0.3s;
}

.product-detail-image:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.product-detail-real-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 30px;
    position: relative;
    z-index: 2;
    animation: fadeIn 0.5s ease-in;
    max-width: 700px;
    margin: 0 auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s, filter 0.3s;
    /* 确保WebP透明度正常显示 */
    background: transparent;
}

.product-detail-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(107, 133, 158, 0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
    z-index: 1;
}

.product-detail-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%235a7fa5' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.product-detail-icon {
    font-size: 140px;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 10px 30px rgba(107, 133, 158, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 大图提示文字 */
.image-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(107, 133, 158, 0.85);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.product-detail-image:hover .image-hint {
    opacity: 1;
}

/* 大图弹窗样式 */
.large-image-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-in;
}

.large-image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    cursor: zoom-out;
}

.large-image-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 2;
}

.large-image {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}

.large-image-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    color: #333;
}

.large-image-close:hover {
    background: white;
    transform: scale(1.1);
}

.product-detail-info {
    padding: var(--space-xl) var(--space-lg);
    background: #FFFFFF !important;
    display: flex;
    flex-direction: column;
}

.product-detail-info h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.product-detail-subtitle {
    font-size: 12px;
    color: var(--accent-color);
    margin-bottom: var(--space-lg);
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.product-detail-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    font-size: 14px;
}

.product-detail-actions {
    display: flex;
    gap: 12px;
    margin-top: auto;
}

.product-detail-section {
    padding: var(--space-xl) var(--space-lg);
    border-top: 1px solid var(--border-color);
    background: #FFFFFF;
}

.product-detail-section h3 {
    font-size: 18px;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.product-detail-section h3::before {
    content: '';
    width: 3px;
    height: 18px;
    background: var(--highlight-color);
    border-radius: 2px;
}

.detail-features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.detail-feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.detail-feature-item:hover {
    border-color: var(--primary-color);
    background: var(--bg-white);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.detail-feature-icon {
    font-size: 32px;
    min-width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(107, 133, 158, 0.1);
    border: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.detail-feature-icon svg {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    filter: none;
}

.detail-feature-item:hover .detail-feature-icon {
    background: linear-gradient(135deg, var(--highlight-color) 0%, var(--purple-color) 100%);
    border-color: transparent;
    box-shadow: 0 8px 24px rgba(22, 93, 255, 0.3);
    transform: scale(1.05);
}

.detail-feature-item:hover .detail-feature-icon svg {
    filter: none;
    transform: scale(1.12);
    stroke: #F8F7F4;
}

.detail-feature-text {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 400;
}

.detail-specs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
}

.detail-specs-table th,
.detail-specs-table td {
    padding: 14px var(--space-md);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.detail-specs-table th {
    background: #e5e7eb;
    color: #4a5568;
    font-weight: 600;
    width: 32%;
    font-size: 13px;
}

.detail-specs-table td {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 400;
}

.detail-specs-table tr:last-child th,
.detail-specs-table tr:last-child td {
    border-bottom: none;
}

.detail-specs-table tr:hover td {
    background: white;
}

.detail-applications {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.application-card {
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.application-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(95, 168, 163, 0.02) 0%, rgba(22, 93, 255, 0.02) 100%);
    box-shadow: 0 20px 40px -12px rgba(95, 168, 163, 0.15), 0 0 0 1px rgba(95, 168, 163, 0.08);
}

.application-icon {
    font-size: 64px;
    margin-bottom: 18px;
    width: 90px;
    height: 90px;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: rgba(107, 133, 158, 0.1);
    border: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.application-icon svg {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    filter: none;
}

.application-card:hover .application-icon {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--highlight-color) 100%);
    border-color: transparent;
    box-shadow: 0 12px 32px rgba(95, 168, 163, 0.3);
    transform: scale(1.1);
}

.application-card:hover .application-icon svg {
    filter: none;
    transform: scale(1.08);
    stroke: #F8F7F4;
}

.application-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.application-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 产品详情响应式 */
@media (max-width: 1199px) {
    /* 平板端适配 */
    .products-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-detail-header {
        grid-template-columns: 1fr;
    }

    .product-detail-image {
        min-height: 350px;
    }

    .product-detail-info {
        padding: var(--space-lg) var(--space-md);
    }

    .modal-content {
        width: 95%;
    }
}

@media (max-width: 767px) {
    /* 移动端适配 (≤767px) */
    .modal-content {
        width: 95%;
        margin: 10px auto 20px;
        border-radius: var(--radius-lg);
    }

    .product-detail-image {
        min-height: 280px;
    }

    .product-detail-icon {
        font-size: 100px;
    }

    .product-detail-info h2 {
        font-size: 22px;
    }

    .product-detail-subtitle {
        font-size: 11px;
    }

    .product-detail-description {
        font-size: 13px;
    }

    .product-detail-actions {
        flex-direction: column;
    }

    .product-detail-section {
        padding: var(--space-lg) var(--space-md);
    }

    .detail-features-list {
        grid-template-columns: 1fr;
    }

    .modal-body .detail-applications {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    .modal-body .application-card {
        padding: var(--space-md) var(--space-sm) !important;
        text-align: center !important;
        overflow: visible !important;
        position: relative;
    }

    .modal-body .application-icon {
        width: 50px !important;
        height: 50px !important;
        margin-bottom: 10px !important;
        margin: 0 auto 10px !important;
        font-size: 0 !important;
    }

    .modal-body .application-icon svg {
        width: 30px !important;
        height: 30px !important;
        max-width: 30px !important;
        max-height: 30px !important;
        overflow: visible !important;
    }

    .modal-body .application-title {
        font-size: 13px !important;
        font-weight: 600 !important;
        margin-bottom: 4px !important;
    }

    .modal-body .application-desc {
        font-size: 11px !important;
    }

    .detail-specs-table th,
    .detail-specs-table td {
        padding: 12px var(--space-md);
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        border-radius: var(--radius-md);
    }

    .product-detail-image {
        min-height: 220px;
    }

    .product-detail-icon {
        font-size: 80px;
    }

    .product-detail-info {
        padding: var(--space-lg) var(--space-md);
    }

    .product-detail-section {
        padding: var(--space-md) var(--space-sm);
    }

    .product-detail-info h2 {
        font-size: 20px;
    }

    .detail-feature-item {
        padding: var(--space-md);
    }
}



/* ============ 图标系统 ============ */
/* 统一图标风格：线性，2px粗细 */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2px;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.3s ease;
}

/* 导航图标：24px × 24px，1.5px粗细 */
.nav-menu .icon {
    stroke-width: 1.5px;
}

/* 内容模块图标：20px × 20px，2px粗细 */
.content-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2px;
}

/* 按钮图标：16px × 16px，2px粗细 */
.btn-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2px;
}

/* 页脚图标：18px × 18px，2px粗细 */
.footer-icon {
    width: 18px;
    height: 18px;
    stroke-width: 2px;
}

/* 图标颜色 */
.icon-primary {
    stroke: var(--accent-color);
}

.icon-secondary {
    stroke: var(--secondary-color);
}

.icon-highlight {
    stroke: var(--highlight-color);
}

/* 图标hover效果 */
.icon:hover {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* 产品参数使用等宽字体 */
.mono-text {
    font-family: var(--font-mono);
    font-size: var(--font-caption);
    color: var(--text-secondary);
    letter-spacing: 0;
}


/* ============ 性能优化 ============ */
/* 图片懒加载样式 */
img[loading="lazy"] {
    background-color: var(--bg-light);
    min-height: 200px;
}

/* 图片加载完成动画 */
img[loading="lazy"]:not([src=""]) {
    animation: fadeIn 0.5s ease-out;
}

/* 减少重绘 */
.gpu-accelerated {
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
}

/* 内容可见性检测 */
.observer-target {
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.observer-target.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动优化 */
.smooth-scroll {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* 触摸优化 */
@media (hover: none) {
    /* 移动设备优化 */
    .btn {
        padding: 14px 24px;
        min-height: 48px;
        font-size: 16px;
    }

    .card, .product-card {
        touch-action: manipulation;
    }
}

/* 减少动画复杂度 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 加载状态 */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top-color: var(--highlight-color);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ============ 软件界面截图样式 ============ */
.software-screenshots {
    display: grid;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.screenshot-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.screenshot-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.screenshot-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.screenshot-image img {
    width: 90%;
    height: 90%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

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

.screenshot-info {
    padding: var(--space-md);
}

.screenshot-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.screenshot-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 移动端软件界面显示1列 */
@media (max-width: 767px) {
    .software-screenshots {
        grid-template-columns: 1fr !important;
    }
}