/* 全局样式 */
:root {
    --primary-color: #2563eb;
    --secondary-color: #0ea5e9;
    --accent-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --text-dark: #374151;
    --text-light: #6b7280;
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* 导航栏样式 */
.navbar {
    background: rgba(31, 41, 55, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    padding: 1rem 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    margin: 0 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background: rgba(255, 255, 255, 0.1);
}

.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
}

/* 主页横幅样式 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    z-index: 1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.03) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.03) 2px, transparent 2px);
    background-size: 50px 50px, 50px 50px;
    animation: particles 30s linear infinite;
    z-index: 2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://picsum.photos/seed/insulation-pattern/1920/1080.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    mix-blend-mode: overlay;
    z-index: 3;
}

@keyframes particles {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-content h1 {
    color: white;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

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

.feature-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1rem;
    border-radius: 25px;
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.feature-item:nth-child(1) { animation-delay: 0.1s; }
.feature-item:nth-child(2) { animation-delay: 0.2s; }
.feature-item:nth-child(3) { animation-delay: 0.3s; }
.feature-item:nth-child(4) { animation-delay: 0.4s; }

.feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    color: var(--accent-color);
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 25px;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent-color);
    border: none;
    color: white;
}

.btn-primary:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 英雄区域视觉效果 */
.hero-visual {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.visual-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent);
    animation-delay: 0s;
}

.visual-2 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03), transparent);
    animation-delay: 2s;
}

.visual-3 {
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02), transparent);
    animation-delay: 4s;
}

.hero-graphic {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: pulse 3s ease-in-out infinite;
    z-index: 10;
}

/* 漂浮图标 */
.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 1.2rem;
}

.icon-1 { top: 10%; left: 10%; animation: float 8s ease-in-out infinite; }
.icon-2 { top: 20%; right: 15%; animation: float 6s ease-in-out infinite 1s; }
.icon-3 { bottom: 20%; left: 15%; animation: float 7s ease-in-out infinite 2s; }
.icon-4 { bottom: 10%; right: 10%; animation: float 9s ease-in-out infinite 3s; }

/* 英雄统计 */
.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

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

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 0.5rem;
}

.hero-graphic i {
    font-size: 8rem;
    color: white;
}

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

/* 区块标题样式 */
.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* 关于我们样式 */
.about-content h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.about-content p {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    color: white;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.stat-item h4 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-item p {
    margin: 0;
    font-size: 0.9rem;
}

.about-image {
    text-align: center;
}

/* 图片画廊 */
.about-gallery {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 100%;
}

.gallery-main {
    flex: 1;
}

.image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 400px;
    cursor: pointer;
}

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

.image-container:hover .main-image {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.image-container:hover .image-overlay {
    transform: translateY(0);
}

.image-overlay h4 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.image-overlay p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    height: 200px;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
}

.thumb-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover .thumb-image {
    transform: scale(1.1);
}

.thumb-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(37, 99, 235, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .thumb-overlay {
    opacity: 1;
}

/* 产品展示 - 现代化设计 */
.product-showcase {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.product-gallery {
    width: 100%;
    max-width: 550px;
    position: relative;
}

.gallery-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.gallery-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.2);
}

.gallery-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: all 0.4s ease;
}

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

.showcase-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.image-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 10;
    animation: float 3s ease-in-out infinite;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* 图片点击时隐藏徽章 */
.gallery-image:active .image-badge,
.gallery-image:focus .image-badge,
.gallery-image.clicked .image-badge {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* 点击恢复效果 */
.gallery-image.clicked {
    animation: none;
}

.gallery-image.clicked::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 15;
    animation: fadeIn 0.3s ease-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    padding: 0.5rem;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 15px;
}

.thumbnail {
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    border: 2px solid transparent;
}

.thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.thumbnail:hover::before {
    opacity: 1;
}

.thumbnail img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    transition: all 0.3s ease;
}

.thumbnail:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
    border-color: #667eea;
}

.thumbnail:hover img {
    transform: scale(1.1);
}

/* 案例图片 */
.case-image-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

/* 产品卡片样式 */
.product-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    height: 100%;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
    border-color: var(--primary-color);
}

.product-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.product-card:hover .product-icon {
    transform: scale(1.1) rotate(5deg);
}

.product-icon i {
    font-size: 2rem;
    color: white;
}

.product-card h4 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 产品导航标签 - 现代化设计 */
.product-nav {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 1rem;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.15);
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
}

.product-nav::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;
}

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

.product-nav .nav-link {
    border-radius: 15px;
    padding: 1rem 1.8rem;
    margin: 0.25rem;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-nav .nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.product-nav .nav-link:hover::before {
    width: 300px;
    height: 300px;
}

.product-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
    transform: translateY(-3px) scale(1.05);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.product-nav .nav-link.active {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    color: #667eea;
    border-color: transparent;
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px) scale(1.05);
    font-weight: 700;
}

/* 产品详情样式 - 现代化设计 */
.product-detail {
    padding: 2.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.product-detail::before {
    content: '';
    position: absolute;
    top: 0;
    right: -100px;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 50%;
    transition: all 0.5s ease;
}

.product-detail:hover::before {
    right: -50px;
}

.product-detail h3 {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-weight: 800;
    position: relative;
    padding-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.product-detail h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.product-detail .lead {
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.product-specs {
    margin-bottom: 2rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border-radius: 15px;
    padding: 1.5rem;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.product-specs:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.1);
}

.product-specs h4 {
    font-size: 1.3rem;
    color: #667eea;
    margin-bottom: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-specs h4::before {
    content: '📋';
    font-size: 1.2rem;
}

.product-specs ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-specs li {
    padding: 0.8rem 0;
    color: var(--text-dark);
    position: relative;
    padding-left: 25px;
    line-height: 1.7;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs li:hover {
    color: #667eea;
    padding-left: 30px;
}

.product-specs li::before {
    content: '✨';
    position: absolute;
    left: 0;
    color: #667eea;
    font-size: 0.9rem;
}

/* 产品特性网格 */
.product-features {
    margin-bottom: 2rem;
}

.product-features h4 {
    font-size: 1.3rem;
    color: #764ba2;
    margin-bottom: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-features h4::before {
    content: '⭐';
    font-size: 1.2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.feature-badge {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(118, 75, 162, 0.08));
    padding: 1.2rem 0.8rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-badge:hover::before {
    opacity: 1;
}

.feature-badge:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}

.feature-badge i {
    font-size: 1.8rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.8rem;
    display: block;
    transition: all 0.3s ease;
}

.feature-badge:hover i {
    transform: scale(1.1);
}

.feature-badge span {
    font-size: 0.85rem;
    color: var(--text-dark);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
}

/* 应用领域 */
.product-applications {
    margin-bottom: 2rem;
}

.product-applications h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.product-applications h4::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 20px;
    background: var(--primary-color);
    margin-right: 10px;
    border-radius: 2px;
}

.application-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.app-tag {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: default;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.app-tag:hover::before {
    width: 100px;
    height: 100px;
}

.app-tag:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

/* 产品图片容器 */
.product-image-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.product-image.large {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.product-image.large:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-image.large i {
    font-size: 8rem;
    color: var(--primary-color);
}

/* 产品概览卡片 */
.overview-title {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-weight: 700;
}

.product-summary-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    height: 100%;
}

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

.summary-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition);
}

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

.summary-icon i {
    font-size: 1.5rem;
    color: white;
}

.product-summary-card h5 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.product-summary-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.product-summary-card .badge {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 12px;
}

/* 案例卡片样式 */
.case-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

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

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-image i {
    font-size: 3rem;
    color: var(--accent-color);
}

.case-content {
    padding: 1.5rem;
}

.case-content h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.case-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* 联系我们样式 */
.contact-info {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    gap: 1rem;
}

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

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-top: 0.25rem;
    width: 30px;
}

.contact-item h5 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.6;
}

.contact-form {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    color: var(--text-dark);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.1);
}

/* 企业文化卡片 */
.culture-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    height: 100%;
}

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

.culture-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-color), #dc2626);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

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

.culture-icon i {
    font-size: 1.8rem;
    color: white;
}

.culture-card h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.culture-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 生产基地 */
.production-base {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.base-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: var(--transition);
}

.base-item:hover {
    background: linear-gradient(135deg, #f0f4ff, #e0e7ff);
    transform: translateX(5px);
}

.base-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
    min-width: 40px;
    text-align: center;
}

.base-item h5 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.base-item p {
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 行业资讯 */
.news-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    height: 100%;
}

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

.news-image {
    height: 200px;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.news-image i {
    font-size: 3rem;
    color: var(--primary-color);
}

.news-content {
    padding: 1.5rem;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.news-date {
    color: var(--text-light);
    font-size: 0.85rem;
}

.news-category {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
}

.news-content h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
    transform: translateX(3px);
}

/* 新闻图片小图 */
.news-image-small {
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.news-thumb-img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-content:hover .news-thumb-img {
    transform: scale(1.05);
}

.news-item-small {
    background: white;
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    height: 100%;
}

.news-item-small:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.12);
}

.news-item-small h5 {
    font-size: 0.95rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.3;
}

.news-meta-small {
    color: var(--text-light);
    font-size: 0.8rem;
    margin: 0;
}

.news-meta-small i {
    margin-right: 0.5rem;
    margin-left: 0.75rem;
}

.news-meta-small i:first-child {
    margin-left: 0;
}

/* 案例分类导航 */
.case-nav {
    background: white;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.case-nav .nav-link {
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    margin: 0.25rem;
    color: var(--text-dark);
    background: transparent;
    border: 2px solid transparent;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.case-nav .nav-link:hover {
    background: var(--light-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.case-nav .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

/* 增强案例卡片 */
.case-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: white;
    padding: 0.35rem 0.75rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
    z-index: 2;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.8));
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.case-details {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.case-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-block;
    margin-bottom: 0.5rem;
    align-self: flex-start;
}

.case-overlay h4 {
    color: white;
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.case-overlay p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 0.5rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.detail-item {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.85rem;
}

.detail-item i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* 新闻详情模态框 */
.news-detail-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.modal-overlay {
    background: rgba(0, 0, 0, 0.8);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 800px;
    max-height: 90vh;
    width: 90%;
    overflow-y: auto;
    margin: 20px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-overlay.show .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    margin: 0;
    color: var(--dark-color);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.modal-date {
    background: var(--light-color);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.modal-category {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.modal-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.modal-content-text {
    line-height: 1.8;
    color: var(--text-dark);
}

.modal-content-text h4 {
    color: var(--dark-color);
    margin: 1.5rem 0 1rem 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.modal-content-text h4:first-child {
    margin-top: 0;
}

.modal-content-text p {
    margin-bottom: 1rem;
}

.modal-content-text ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.modal-content-text li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* 响应式模态框 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10px;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-header h3 {
        font-size: 1.2rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .modal-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .modal-image {
        height: 250px;
    }
    
    .modal-content-text h4 {
        font-size: 1.1rem;
    }
}

/* 页脚样式 */
footer {
    background: var(--dark-color) !important;
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    margin: 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-graphic {
        width: 250px;
        height: 250px;
    }
    
    .hero-graphic i {
        font-size: 6rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
    
    .navbar-nav {
        padding: 1rem 0;
    }
    
    .navbar-nav .nav-link {
        text-align: center;
        padding: 0.75rem 0;
        margin: 0.25rem 0.5rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    .contact-item i {
        margin: 0 0 0.5rem 0;
        font-size: 2rem;
    }
    
    .product-card, .case-card {
        margin-bottom: 1.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        text-align: center;
        padding: 0.75rem 1.5rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .product-card, .contact-form {
        padding: 1.5rem;
    }
    
    .case-content {
        padding: 1rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .form-row .col-md-6 {
        margin-bottom: 1rem;
    }
    
    .hero-graphic {
        width: 200px;
        height: 200px;
        margin-top: 2rem;
    }
    
    .hero-graphic i {
        font-size: 5rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .feature-item {
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .product-card h4, .case-content h4 {
        font-size: 1.1rem;
    }
    
    .product-card p, .case-content p {
        font-size: 0.9rem;
    }
    
    .about-content h3 {
        font-size: 1.5rem;
    }
    
    .about-content p {
        font-size: 0.95rem;
    }
    
    .contact-item h5 {
        font-size: 1rem;
    }
    
    .contact-item p {
        font-size: 0.9rem;
    }
}

/* 超小屏幕优化 */
@media (max-width: 360px) {
    .hero-content h1 {
        font-size: 1.4rem;
    }
    
    .product-card, .case-card {
        padding: 1rem;
    }
    
    .contact-form {
        padding: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* 响应式补充样式 */
@media (max-width: 768px) {
    /* 产品导航响应式 */
    .product-nav, .case-nav {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding: 0.5rem;
        gap: 0.25rem;
    }
    
    .product-nav .nav-link, .case-nav .nav-link {
        flex-shrink: 0;
        white-space: nowrap;
        margin: 0.125rem;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    /* 产品详情响应式 */
    .product-detail {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .product-detail h3 {
        font-size: 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .feature-badge {
        padding: 0.75rem 0.5rem;
    }
    
    .feature-badge i {
        font-size: 1.2rem;
    }
    
    .feature-badge span {
        font-size: 0.8rem;
    }
    
    /* 企业文化卡片 */
    .culture-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .culture-icon {
        width: 60px;
        height: 60px;
    }
    
    .culture-icon i {
        font-size: 1.5rem;
    }
    
    /* 生产基地 */
    .base-item {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .base-item i {
        margin: 0 0 0.5rem 0;
    }
    
    /* 新闻卡片 */
    .news-card {
        margin-bottom: 1.5rem;
    }
    
    .news-content {
        padding: 1rem;
    }
    
    .news-content h4 {
        font-size: 1rem;
    }
    
    /* 案例卡片增强 */
    .case-card {
        margin-bottom: 1.5rem;
    }
    
    .case-content {
        padding: 1rem;
    }
    
    .case-content h4 {
        font-size: 1rem;
    }
    
    .case-content p {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    .case-details {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    /* 产品概览卡片 */
    .product-summary-card {
        padding: 1rem;
    }
    
    .summary-icon {
        width: 50px;
        height: 50px;
    }
    
    .summary-icon i {
        font-size: 1.2rem;
    }
    
    .product-summary-card h5 {
        font-size: 1rem;
    }
    
    .product-summary-card p {
        font-size: 0.85rem;
    }
    
    /* 应用标签 */
    .application-list {
        gap: 0.5rem;
    }
    
    .app-tag {
        padding: 0.35rem 0.75rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 576px) {
    /* 产品图片容器 */
    .product-image-container {
        padding: 1rem;
    }
    
    .product-image.large {
        width: 280px;
        height: 280px;
    }
    
    .product-image.large i {
        font-size: 5rem;
    }
    
    /* 产品规格 */
    .product-specs ul {
        font-size: 0.85rem;
    }
    
    /* 新闻项目小卡片 */
    .news-grid .row {
        gap: 0.75rem;
    }
    
    .news-item-small {
        padding: 0.75rem;
    }
    
    .news-item-small h5 {
        font-size: 0.85rem;
    }
    
    .news-meta-small {
        font-size: 0.75rem;
    }
    
    /* 案例徽章 */
    .case-badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
        top: 10px;
        right: 10px;
    }
    
    /* 统计数据 */
    .about-stats {
        gap: 0.75rem;
    }
    
    .stat-item {
        padding: 0.75rem;
    }
    
    .stat-item h4 {
        font-size: 1.5rem;
    }
    
    .stat-item p {
        font-size: 0.8rem;
    }
}

/* 横屏模式优化 */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: 100vh;
        padding: 2rem 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-graphic {
        width: 200px;
        height: 200px;
    }
    
    .hero-graphic i {
        font-size: 5rem;
    }
}

/* 打印样式 */
@media print {
    .navbar, .hero-section, #contact, footer, .product-nav, .case-nav {
        display: none;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .product-detail, .case-card, .news-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        margin-bottom: 1rem;
    }
}

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

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

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.scale-in {
    animation: scaleIn 0.8s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 现代化增强效果 - 产品页面优化 */
.tab-pane {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.tab-pane:not(.show) {
    display: none;
}

.tab-pane.show {
    display: block;
}

.tab-pane .row {
    animation: slideInLeft 0.8s ease-out;
    animation-delay: 0.2s;
    animation-fill-mode: both;
}

/* 产品详情增强动画 */
.product-detail > *:not(.product-detail::before) {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.product-detail h3 { animation-delay: 0.1s; }
.product-detail .lead { animation-delay: 0.2s; }
.product-specs { animation-delay: 0.3s; }
.product-features { animation-delay: 0.4s; }
.product-applications { animation-delay: 0.5s; }

/* 产品画廊增强动画 */
.product-gallery {
    animation: scaleIn 0.8s ease-out;
    animation-delay: 0.3s;
    animation-fill-mode: both;
}

.gallery-image {
    animation: fadeIn 0.8s ease-out;
    animation-delay: 0.4s;
    animation-fill-mode: both;
}

.thumbnail {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.thumbnail:nth-child(1) { animation-delay: 0.5s; }
.thumbnail:nth-child(2) { animation-delay: 0.6s; }
.thumbnail:nth-child(3) { animation-delay: 0.7s; }
.thumbnail:nth-child(4) { animation-delay: 0.8s; }

/* 产品导航按钮点击波纹效果 */
.product-nav .nav-link {
    position: relative;
    overflow: hidden;
}

.product-nav .nav-link::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.product-nav .nav-link:active::after {
    width: 300px;
    height: 300px;
}

/* 现代化产品切换动画 */
@keyframes productSwitchIn {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tab-pane.active {
    animation: productSwitchIn 0.5s ease-out;
}

/* 图片悬停效果增强 */
.gallery-image img,
.thumbnail img {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 产品徽章增强 */
.feature-badge,
.app-tag {
    transform-origin: center;
}

.feature-badge:active,
.app-tag:active {
    transform: scale(0.95);
}

/* 产品详情卡片增强 */
.product-detail {
    transform-origin: center;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.product-detail:hover {
    transform: translateY(-5px);
}

/* 加载状态优化 */
.products-section {
    min-height: 600px;
}

.product-content-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

/* 现代化焦点样式 */
.product-nav .nav-link:focus,
.thumbnail:focus,
.feature-badge:focus,
.app-tag:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .product-nav .nav-link {
        border-width: 3px;
    }
    
    .product-detail {
        border: 2px solid var(--text-dark);
    }
    
    .feature-badge,
    .app-tag {
        border-width: 2px;
    }
}

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

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .product-detail {
        background: linear-gradient(135deg, #1f2937, #374151);
        color: #f9fafb;
    }
    
    .product-detail h3 {
        background: linear-gradient(135deg, #60a5fa, #a78bfa);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    
    .product-specs {
        background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
        border-left-color: #60a5fa;
    }
}