/* ============ 服务业风格 - 白色主题 ============ */
:root {
    --primary-color: #7c3aed;
    --primary-hover: #6d28d9;
    --secondary-color: #f97316;
    --accent-color: #10b981;
    --neon-green: #34d399;
    --bg-dark: #ffffff;        /* 主背景：白色 */
    --bg-darker: #f8fafc;      /* 深色区域：浅灰 */
    --bg-card: #f1f5f9;        /* 卡片背景：浅灰 */
    --bg-card-hover: #e2e8f0;  /* 悬停背景：中灰 */
    --text-primary: #1e293b;   /* 主文字：深灰 */
    --text-secondary: #475569; /* 次要文字：中灰 */
    --text-muted: #64748b;     /* 弱化文字：浅灰 */
    --border-color: rgba(124, 58, 237, 0.2);
    --border-glow: rgba(124, 58, 237, 0.3);
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #10b981 50%, #f97316 100%);
    --gradient-cyber: linear-gradient(135deg, #7c3aed 0%, #34d399 100%);
    --gradient-neon: linear-gradient(90deg, #7c3aed, #10b981, #f97316, #7c3aed);
    --shadow-neon: 0 0 20px rgba(124, 58, 237, 0.15), 0 0 40px rgba(124, 58, 237, 0.05);
    --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============ 导航栏 ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-neon);
}

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

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-favicon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    margin-right: 8px;
}

.footer-favicon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin-right: 12px;
    vertical-align: middle;
}

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.nav-menu {
    display: flex;
    gap: 25px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-link:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cyber);
    transition: var(--transition);
    box-shadow: 0 0 10px var(--primary-color);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
    box-shadow: 0 0 5px var(--primary-color);
}

/* ============ 图片轮播区域 ============ */
.hero-carousel {
    margin-top: 70px;
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #f5f5f5;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #333;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.carousel-btn:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev { left: 20px; }
.carousel-next { right: 20px; }

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-indicators .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-indicators .indicator.active {
    background: #fff;
    transform: scale(1.2);
}

/* ============ 查看更多链接 ============ */
.view-more-link {
    position: absolute;
    right: 0;
    top: 0;
    color: var(--primary-color);
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.view-more-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

/* ============ 子页面样式 ============ */
.page-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 120px 0 60px;
    text-align: center;
    margin-top: 70px;
}

.page-title {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.news-item-card {
    background: #fff;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.news-item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.stat-box {
    text-align: center;
    padding: 30px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 10px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: #666;
    margin-top: 10px;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .page-title {
        font-size: 1.8rem;
    }
}

/* ============ 子页面通用样式 ============ */
.breadcrumb-section { margin-top: 70px; padding: 15px 0; background: #f8f9fa; border-bottom: 1px solid #eee; }
.breadcrumb-section .container { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: #666; }
.breadcrumb-label { color: #999; }
.breadcrumb-section a { color: var(--primary-color); text-decoration: none; }
.breadcrumb-section a:hover { text-decoration: underline; }
.breadcrumb-separator { color: #ccc; }
.breadcrumb-current { color: #333; }
.subpage-header { padding: 40px 0 20px; text-align: center; }
.subpage-title { font-size: 1.8rem; color: var(--primary-color); position: relative; display: inline-block; }
.subpage-title::after { content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background: var(--primary-color); }
.subpage-content { padding: 40px 0 80px; min-height: 60vh; }
.product-grid-full { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-item { background: #fff; border-radius: 8px; overflow: hidden; transition: all 0.3s ease; cursor: pointer; }
.product-item:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.product-item-image { width: 100%; height: 220px; background: #f5f5f5; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-item-image img { width: 100%; height: 100%; object-fit: contain; padding: 20px; }
.product-item-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #f0f0f0, #e8e8e8); }
.product-item-placeholder i { font-size: 3rem; color: #ccc; }
.product-item-name { padding: 15px; text-align: center; font-size: 1rem; color: #333; border-top: 1px solid #eee; }
.news-list-full { display: flex; flex-direction: column; gap: 20px; }
.news-item-full { background: #fff; border-radius: 8px; padding: 25px; border: 1px solid #eee; transition: all 0.3s ease; }
.news-item-full:hover { border-color: var(--primary-color); box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
.news-item-full .news-date { color: #999; font-size: 0.85rem; margin-bottom: 10px; }
.news-item-full .news-title { font-size: 1.2rem; color: #333; margin-bottom: 10px; }
.news-item-full .news-summary { color: #666; line-height: 1.6; }
.video-grid-full { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.video-item { background: #fff; border-radius: 8px; overflow: hidden; transition: all 0.3s ease; cursor: pointer; }
.video-item:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.video-item-cover { width: 100%; height: 180px; background: #f5f5f5; display: flex; align-items: center; justify-content: center; position: relative; }
.video-item-cover img { width: 100%; height: 100%; object-fit: cover; }
.video-item-cover video { width: 100%; height: 100%; object-fit: cover; }
.video-item-cover .video-poster { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
.video-item-play { position: absolute; width: 60px; height: 60px; background: rgba(255,255,255,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 2; }
.video-item-play i { font-size: 1.5rem; color: var(--primary-color); margin-left: 5px; }
.video-item-name { padding: 15px; text-align: center; font-size: 1rem; color: #333; }
.pdf-list-full { display: flex; flex-direction: column; gap: 15px; }
.pdf-item-full { display: flex; align-items: center; gap: 20px; background: #fff; border-radius: 8px; padding: 20px; border: 1px solid #eee; transition: all 0.3s ease; text-decoration: none; }
.pdf-item-full:hover { border-color: var(--primary-color); background: #fafafa; }
.pdf-item-icon { width: 50px; height: 50px; background: linear-gradient(135deg, #ff6b6b, #ee5a24); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.pdf-item-icon i { font-size: 1.5rem; color: #fff; }
.pdf-item-info { flex: 1; }
.pdf-item-title { font-size: 1rem; color: #333; margin-bottom: 5px; }
.pdf-item-size { font-size: 0.85rem; color: #999; }
.pdf-item-download { width: 40px; height: 40px; background: #f0f0f0; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.pdf-item-download i { color: #666; }
.about-content-full { max-width: 900px; margin: 0 auto; }
.about-content-full p { font-size: 1.1rem; line-height: 1.8; color: #555; margin-bottom: 20px; }
@media (max-width: 768px) { .product-grid-full, .video-grid-full { grid-template-columns: repeat(2, 1fr); gap: 15px; } .product-item-image { height: 150px; } .video-item-cover { height: 120px; } }

/* ============ Hero区域(保留兼容) ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 60%);
}

.cyber-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(50px); }
}

.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 20px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}

.badge-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}

.badge-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 25px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 50px rgba(0, 212, 255, 0.3);
    line-height: 1.2;
}

.hero-title.glitch {
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.hero-stats .stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.hero-stats .stat-suffix {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.hero-stats .stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 5px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    margin: 10px auto 0;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.3; }
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-neon {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3), inset 0 0 15px rgba(0, 212, 255, 0.1);
}

.btn-neon:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.6), inset 0 0 30px rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

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

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-outline-light {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ============ 技术展示 ============ */
.tech-showcase {
    padding: 30px 0;
    background: rgba(0, 212, 255, 0.02);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.showcase-wrapper {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.showcase-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.showcase-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* ============ 通用区块 ============ */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    color: var(--primary-color);
    letter-spacing: 3px;
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-line {
    width: 80px;
    height: 3px;
    background: var(--gradient-cyber);
    margin: 0 auto 20px;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--primary-color);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============ 关于我们 ============ */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 40px;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.highlight-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.highlight-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
}

.highlight-icon {
    flex-shrink: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.highlight-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.highlight-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.about-visual {
    position: relative;
}

.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 50px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--primary-color), transparent 30%);
    animation: rotate 4s linear infinite;
    opacity: 0.1;
}

@keyframes rotate {
    100% { transform: rotate(360deg); }
}

.tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--gradient-cyber);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.tech-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.tech-card p {
    color: var(--text-muted);
}

/* ============ 产品中心 ============ */
.products {
    background: linear-gradient(180deg, transparent 0%, rgba(124, 58, 237, 0.03) 50%, transparent 100%);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-card-link,
.news-item-link,
.news-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* ============ 新闻动态（2x2网格布局） ============ */
.news-section {
    background: var(--bg-darker);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

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

.news-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-darker);
}

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

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

.news-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-darker) 100%);
}

.news-card-placeholder i {
    font-size: 48px;
    color: var(--text-muted);
}

.news-card-content {
    padding: 20px;
}

.news-card-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.news-card-date i {
    font-size: 0.8rem;
}

.news-card-title {
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

@media (max-width: 992px) {
    .news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .news-card-image {
        height: 160px;
    }
}

/* 旧版新闻样式保留 */
.news-item-left {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.news-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-content {
    flex: 1;
}

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

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

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-darker) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.product-overlay {
    position: absolute;
    top: 15px;
    right: 15px;
}

.product-tag {
    background: var(--secondary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-info {
    padding: 25px;
}

.product-name {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.product-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.product-link:hover {
    color: var(--secondary-color);
}

/* 产品占位卡片样式 */
.placeholder-card {
    opacity: 0.7;
    border: 2px dashed var(--border-color) !important;
}

.placeholder-card:hover {
    opacity: 1;
    border-color: var(--primary-color) !important;
    transform: translateY(-5px);
}

.placeholder-card .product-placeholder {
    opacity: 0.4;
}

.placeholder-card .product-name,
.placeholder-card .product-desc {
    color: var(--text-muted);
}

.placeholder-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding: 10px 15px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.placeholder-hint i {
    font-size: 1rem;
}

/* ============ PDF资料展示（类似移动端风格） ============ */
.pdf-showcase {
    background: var(--bg-darker);
}

.pdf-showcase-list {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.pdf-showcase-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 25px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}

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

.pdf-showcase-item:hover {
    background: var(--bg-card-hover);
}

.pdf-showcase-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.pdf-showcase-info {
    flex: 1;
    min-width: 0;
}

.pdf-showcase-title {
    display: block;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-showcase-size {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.pdf-showcase-desc {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

.pdf-showcase-arrow {
    flex-shrink: 0;
    color: var(--text-muted);
    font-size: 1rem;
    transition: var(--transition);
}

.pdf-showcase-item:hover .pdf-showcase-arrow {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* PDF占位样式 */
.placeholder-pdf {
    opacity: 0.7;
    cursor: default;
}

.placeholder-pdf:hover {
    background: var(--bg-card);
}

.placeholder-pdf .pdf-showcase-icon {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.5) 0%, rgba(238, 90, 111, 0.5) 100%);
}

.placeholder-pdf .pdf-showcase-title {
    color: var(--text-secondary);
}

.placeholder-pdf .pdf-showcase-arrow {
    opacity: 0.3;
}

/* ============ 公司介绍区域 ============ */
.company-intro {
    background: var(--bg-dark);
}

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

.intro-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.9;
}

.intro-placeholder {
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.intro-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary-color);
}

.intro-placeholder h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.intro-placeholder p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 15px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin: 40px 0;
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.intro-note {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 0.95rem;
    margin-top: 20px;
}

.intro-note i {
    font-size: 1rem;
}

.intro-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 30px;
    padding-top: 20px;
}

.intro-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 10px;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    transition: all 0.3s ease;
}

.intro-contact-item:hover {
    background: rgba(var(--primary-rgb), 0.15);
    transform: translateY(-2px);
}

.intro-contact-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.intro-contact-item span {
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 500;
}

/* ============ 新闻资讯与产品图展示（左右布局） ============ */
.news-gallery-section {
    background: var(--bg-darker);
}

.news-gallery-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

/* 左侧：新闻列表 */
.news-list-left {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.news-item-left {
    background: var(--bg-card);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.news-item-left:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-neon);
    transform: translateX(5px);
}

.news-item-left .news-date {
    display: inline-block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.news-item-left .news-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-item-left .news-summary {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-action {
    display: flex;
    align-items: center;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.news-link:hover {
    gap: 12px;
}

.news-link i {
    font-size: 0.85rem;
}

.placeholder-news-item {
    opacity: 0.7;
    border: 2px dashed var(--border-color) !important;
}

.placeholder-news-item:hover {
    opacity: 1;
}

.news-placeholder-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 6px;
    color: var(--primary-color);
    font-size: 0.85rem;
}

.news-placeholder-tag i {
    font-size: 0.9rem;
}

/* 宣传视频占位卡片 */
.promo-video-card {
    margin-top: 10px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px dashed var(--border-color);
    padding: 20px;
    display: flex;
    gap: 20px;
    align-items: center;
    transition: var(--transition);
}

.promo-video-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-neon);
}

.promo-video-thumb {
    flex: 0 0 180px;
    aspect-ratio: 16/9;
    border-radius: 10px;
    background: var(--bg-card-hover);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.promo-video-play {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.4rem;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.4);
}

.promo-video-info {
    flex: 1;
}

.promo-video-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.promo-video-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.promo-video-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 20px;
    background: rgba(0, 212, 255, 0.08);
    color: var(--primary-color);
    font-size: 0.85rem;
}

.promo-video-tag i {
    font-size: 0.9rem;
}

/* 右侧：产品图展示 */
.gallery-grid-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.gallery-item-right {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-item-right img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-overlay-right {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: 15px;
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-item-right:hover img {
    transform: scale(1.1);
}

.gallery-overlay-right h4 {
    color: white;
    font-size: 1rem;
    margin: 0;
}

.gallery-placeholder-right {
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: var(--transition);
}

.placeholder-gallery-right:hover .gallery-placeholder-right {
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

.gallery-placeholder-right i {
    font-size: 2.5rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.gallery-placeholder-right p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .news-gallery-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .gallery-grid-right {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .gallery-grid-right {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============ 核心优势 ============ */
.features {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-color);
    position: relative;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--primary-color);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover .icon-glow {
    opacity: 1;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.feature-line {
    width: 50px;
    height: 2px;
    background: var(--gradient-cyber);
    margin: 20px auto 0;
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover .feature-line {
    opacity: 1;
}

/* ============ 服务 ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-neon);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.service-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.service-line {
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.service-desc {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.service-link:hover {
    color: var(--secondary-color);
}

/* ============ 新闻动态 ============ */
.news {
    background: linear-gradient(180deg, transparent 0%, rgba(255, 107, 53, 0.03) 50%, transparent 100%);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

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

.news-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.2);
}

.news-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #f5f5f5;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(10, 10, 15, 0.8), transparent);
}

.news-content {
    padding: 25px;
}

.news-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.news-title {
    font-size: 1.15rem;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-summary {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-color);
}

/* ============ 资源下载 ============ */
.resources-section {
    margin-bottom: 50px;
}

.resources-section:last-child {
    margin-bottom: 0;
}

.resources-subtitle {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.resources-subtitle i {
    color: var(--primary-color);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.video-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-neon);
}

.video-cover {
    position: relative;
    height: 160px;
    background: var(--bg-darker);
}

.video-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--text-muted);
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.video-card:hover .video-play-btn {
    transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
    padding: 15px 20px;
}

.video-name {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.pdf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.pdf-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    transition: var(--transition);
}

.pdf-card:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.2);
}

.pdf-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.pdf-info {
    flex: 1;
}

.pdf-name {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 5px;
}

.pdf-size {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.pdf-download {
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition);
}

.pdf-card:hover .pdf-download {
    color: var(--secondary-color);
}

/* ============ VR展厅 ============ */
.vr-section {
    background: linear-gradient(180deg, transparent 0%, rgba(124, 58, 237, 0.05) 50%, transparent 100%);
}

.vr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.vr-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.vr-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.3);
}

.vr-cover {
    position: relative;
    height: 200px;
}

.vr-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vr-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(0, 212, 255, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-color);
}

.vr-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.vr-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--accent-color);
    font-weight: 600;
}

.vr-btn i {
    font-size: 2.5rem;
}

.vr-info {
    padding: 20px;
}

.vr-name {
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* ============ 客户评价 ============ */
.testimonials {
    background: var(--bg-darker);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-card);
    padding: 35px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-neon);
}

.testimonial-quote {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: -20px;
}

.testimonial-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 25px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-cyber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--bg-dark);
}

.author-info {
    flex: 1;
}

.author-name {
    display: block;
    font-weight: 600;
    margin-bottom: 3px;
}

.author-company {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.testimonial-rating {
    position: absolute;
    top: 25px;
    right: 25px;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.testimonial-rating i {
    margin-left: 2px;
}

/* ============ 联系我们 ============ */
.contact {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 212, 255, 0.03) 50%, transparent 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.contact-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 5px;
}

.contact-value {
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-form-wrapper {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

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

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

/* ============ CTA区域 ============ */
.cta-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
}

.cta-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 35px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 15px;
}

.footer-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.footer-slogan {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-col a,
.footer-col span {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 12px;
    transition: var(--transition);
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.icp {
    margin-top: 10px;
}

/* ============ 回到顶部 ============ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ============ 侧边栏固定按钮 ============ */
.side-fixed-btns {
    position: fixed !important;
    right: 0 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    z-index: 99999 !important;
    display: flex !important;
    flex-direction: column !important;
    left: auto !important;
    bottom: auto !important;
}

.side-btn {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    width: 52px !important;
    min-height: 60px !important;
    padding: 12px 8px !important;
    color: #fff !important;
    text-decoration: none !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    border: none !important;
    outline: none !important;
}

.side-btn:hover {
    width: 65px !important;
}

.side-btn i {
    font-size: 1.2rem !important;
    margin-bottom: 6px !important;
    color: #fff !important;
}

.side-btn span {
    font-size: 0.65rem !important;
    white-space: nowrap !important;
    color: #fff !important;
}

.side-btn.home-btn {
    background: var(--bg-card) !important;
    border-radius: 8px 0 0 0 !important;
    border: 1px solid var(--border-color) !important;
    border-right: none !important;
}

.side-btn.home-btn:hover {
    background: var(--bg-card-hover) !important;
}

.side-btn.agent-btn {
    background: linear-gradient(180deg, #00d4ff 0%, #7c3aed 100%) !important;
    border-radius: 0 0 0 8px !important;
}

.side-btn.agent-btn:hover {
    background: linear-gradient(180deg, #00b8e6 0%, #6d28d9 100%) !important;
}

.agent-trigger {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 50px;
    padding: 15px 8px;
    background: linear-gradient(180deg, #00d4ff 0%, #7c3aed 100%);
    border: none;
    border-radius: 8px 0 0 8px;
    color: var(--bg-dark);
    font-weight: 600;
    cursor: pointer;
    box-shadow: -3px 0 20px rgba(0, 212, 255, 0.4);
    transition: var(--transition);
}

.agent-trigger:hover {
    width: 60px;
    box-shadow: -5px 0 30px rgba(0, 212, 255, 0.6);
}

.agent-icon {
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.agent-label {
    font-size: 0.6rem;
    white-space: nowrap;
}

.agent-chat-panel {
    position: fixed;
    bottom: 80px;
    right: 60px;
    width: 380px;
    height: 500px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    display: none;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.agent-chat-panel.active {
    display: flex;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-cyber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-size: 1.2rem;
}

.chat-name {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--neon-green);
    font-size: 0.8rem;
}

.chat-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--neon-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.chat-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.chat-close:hover {
    color: var(--text-primary);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.chat-message {
    margin-bottom: 15px;
}

.chat-message.bot .message-content {
    background: var(--bg-darker);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 12px 12px 12px 0;
    display: inline-block;
    max-width: 85%;
}

.chat-message.user .message-content {
    background: var(--gradient-cyber);
    color: var(--bg-dark);
    padding: 12px 16px;
    border-radius: 12px 12px 0 12px;
    display: inline-block;
    max-width: 85%;
    margin-left: auto;
}

.chat-message.user {
    text-align: right;
}

.chat-suggestions {
    margin-top: 20px;
}

.suggestion-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.suggestion-btn {
    display: block;
    width: 100%;
    padding: 10px 15px;
    margin-bottom: 8px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

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

.chat-footer {
    display: flex;
    gap: 10px;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-darker);
}

.chat-input {
    flex: 1;
    padding: 12px 15px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-send {
    width: 45px;
    height: 45px;
    background: var(--gradient-cyber);
    border: none;
    border-radius: 8px;
    color: var(--bg-dark);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.chat-send:hover {
    transform: scale(1.05);
}

.chat-refresh {
    width: 40px;
    height: 40px;
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 8px;
    color: #666;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-refresh:hover {
    background: #e0e0e0;
    color: #333;
}

/* ============ 弹窗 ============ */
.video-modal,
.vr-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.video-modal.active,
.vr-modal.active {
    display: flex;
}

.video-modal-content,
.vr-modal-content {
    position: relative;
    max-width: 900px;
    width: 90%;
    max-height: 80vh;
}

.video-modal-close,
.vr-modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.video-modal-close:hover,
.vr-modal-close:hover {
    color: var(--primary-color);
}

#modalVideo {
    width: 100%;
    border-radius: 12px;
}

#vrFrame {
    width: 100%;
    height: 70vh;
    border-radius: 12px;
}

/* ============ 响应式 ============ */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-items: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        padding: 20px;
        flex-direction: column;
        gap: 15px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .showcase-wrapper {
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .agent-chat-panel {
        width: calc(100vw - 40px);
        right: -10px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
    
    .ai-agent-widget {
        bottom: 80px;
        right: 20px;
    }
}

/* 占位提示 */
.placeholder-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    transition: var(--transition);
}

.placeholder-tip:hover {
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

.placeholder-tip i {
    display: block;
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 15px;
    opacity: 0.6;
}

.placeholder-tip p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin: 0;
}

.product-detail-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    overflow-y: auto;
}

.product-detail-modal.active {
    display: block;
}

.product-detail-content {
    position: relative;
    max-width: 900px;
    margin: 40px auto;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    min-height: 80vh;
}

.product-detail-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s;
}

.product-detail-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.product-detail-header {
    padding: 30px 40px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.product-detail-breadcrumb {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.product-detail-title {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.product-detail-desc {
    font-size: 16px;
    color: #666;
}

.product-detail-images {
    padding: 20px;
}

.product-detail-img {
    width: 100%;
    display: block;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .product-detail-content {
        margin: 20px;
        min-height: auto;
    }
    
    .product-detail-header {
        padding: 20px;
    }
    
    .product-detail-title {
        font-size: 22px;
    }
}

/* ============ 新闻详情弹窗 ============ */
.news-detail-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    overflow-y: auto;
}

.news-detail-modal.active {
    display: block;
}

.news-detail-content {
    position: relative;
    max-width: 900px;
    margin: 40px auto;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    min-height: 60vh;
}

.news-detail-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s;
}

.news-detail-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.news-detail-header {
    padding: 30px 40px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.news-detail-date {
    font-size: 14px;
    color: #999;
    margin-bottom: 10px;
}

.news-detail-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.news-detail-body {
    padding: 30px 40px;
}

.news-detail-img {
    width: 100%;
    max-width: 600px;
    display: block;
    margin: 0 auto 20px;
    border-radius: 8px;
}

.news-detail-text {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

/* 新闻列表项带图片样式 */
.news-item-full {
    display: flex;
    gap: 20px;
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: all 0.3s;
}

.news-item-full:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-color: #00d4ff;
}

.news-item-image {
    flex-shrink: 0;
    width: 200px;
    height: 140px;
    border-radius: 8px;
    overflow: hidden;
}

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

.news-item-content {
    flex: 1;
}

@media (max-width: 768px) {
    .news-detail-content {
        margin: 20px;
        min-height: auto;
    }
    
    .news-detail-header,
    .news-detail-body {
        padding: 20px;
    }
    
    .news-detail-title {
        font-size: 20px;
    }
    
    .news-item-full {
        flex-direction: column;
    }
    
    .news-item-image {
        width: 100%;
        height: 180px;
    }
}

/* ============ 关于我们页面Tab样式 ============ */
.about-tabs {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 20px 0;
}

.about-tab {
    background: none;
    border: none;
    font-size: 20px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    padding: 10px 20px;
    position: relative;
    transition: color 0.3s;
}

.about-tab:hover {
    color: #00d4ff;
}

.about-tab.active {
    color: #00d4ff;
}

.about-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #00d4ff;
    border-radius: 2px;
}

.about-tab-content {
    display: none;
}

.about-tab-content.active {
    display: block;
}

.about-intro-section {
    padding: 40px 0;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.about-tag {
    padding: 8px 20px;
    background: #f5f5f5;
    border-radius: 4px;
    color: #666;
    font-size: 14px;
    transition: all 0.3s;
}

.about-tag:hover {
    background: #00d4ff;
    color: #fff;
}

.about-intro-text {
    font-size: 16px;
    line-height: 2;
    color: #555;
}

.about-intro-text p {
    margin-bottom: 20px;
    text-indent: 2em;
}

.brand-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 40px 0;
}

.brand-image-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.brand-image-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.brand-image-title {
    padding: 15px;
    text-align: center;
    font-size: 14px;
    color: #666;
    background: #fff;
}

.no-brand-images {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

@media (max-width: 768px) {
    .about-tabs {
        gap: 20px;
    }
    
    .about-tab {
        font-size: 16px;
        padding: 8px 15px;
    }
    
    .about-tags {
        gap: 10px;
    }
    
    .about-tag {
        padding: 6px 12px;
        font-size: 12px;
    }

    .brand-images-grid {
        grid-template-columns: 1fr;
    }
}

/* ============ PDF和视频并排展示 ============ */
.media-showcase-section {
    padding: 60px 0;
    background: var(--bg-dark);
}

.media-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.media-showcase-column {
    display: flex;
    flex-direction: column;
}

.media-showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.media-showcase-title-wrap {
    display: flex;
    flex-direction: column;
}

.media-showcase-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}

.media-showcase-line {
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.media-showcase-more {
    color: var(--primary-color);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
}

.media-showcase-more:hover {
    color: var(--primary-hover);
}

.pdf-feature-card {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.14);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pdf-feature-card:hover,
.pdf-grid-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
}

.pdf-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
}

.pdf-grid-card {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pdf-card-surface {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef7ff 0%, #dcecff 100%);
    overflow: hidden;
}

.pdf-card-surface::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.85), transparent 42%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.pdf-card-surface-featured {
    min-height: 300px;
}

.pdf-card-surface-grid {
    min-height: 300px;
}

.pdf-card-icon-wrap {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-card-icon-wrap i {
    font-size: clamp(5.8rem, 10vw, 9rem);
    color: #ff6b6b;
    filter: drop-shadow(0 14px 24px rgba(255, 107, 107, 0.22));
}

.pdf-card-titlebar {
    padding: 22px 28px;
    background: #2c2c2c;
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
}

.pdf-feature-card .pdf-card-titlebar {
    padding: 15px 20px;
    font-size: 16px;
    font-weight: 500;
}

.pdf-feature-card-empty {
    min-height: 260px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef7ff 0%, #dcecff 100%);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
}

.media-showcase-card {
    display: block;
    text-decoration: none;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.media-showcase-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.15);
}

.media-showcase-cover {
    position: relative;
    height: 300px;
    background: #5a5a5a;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.media-showcase-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-showcase-cover video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pdf-icon-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.pdf-icon-large i {
    font-size: 100px;
    color: #ff6b6b;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.video-placeholder-large {
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-placeholder-large i {
    font-size: 60px;
    color: rgba(255, 255, 255, 0.5);
}

.video-play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.video-play-overlay i {
    font-size: 24px;
    color: #fff;
    margin-left: 4px;
}

.media-showcase-card:hover .video-play-overlay {
    background: rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -50%) scale(1.1);
}

.media-showcase-name {
    padding: 15px 20px;
    background: #2a2a2a;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .media-showcase-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .pdf-card-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .pdf-card-surface-featured {
        min-height: 220px;
    }

    .pdf-card-surface-grid {
        min-height: 220px;
    }

    .pdf-card-titlebar {
        padding: 18px 20px;
        font-size: 1rem;
    }

    .pdf-feature-card-empty {
        min-height: 220px;
    }

    .media-showcase-cover {
        height: 220px;
    }

    .pdf-icon-large i {
        font-size: 70px;
    }

    .media-showcase-title {
        font-size: 20px;
    }
}

/* ============ 新页脚样式 ============ */
.footer-new {
    background: #fff;
    border-top: 1px solid #eee;
    padding: 40px 0 20px;
}

.footer-new-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.footer-new-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-new-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    margin-bottom: 5px;
}

.footer-new-slogan {
    color: #10b981;
    font-size: 14px;
    margin: 0;
}

.footer-new-company {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 5px 0;
}

.footer-new-contact {
    font-size: 14px;
    color: #666;
    margin: 3px 0;
}

.footer-new-contact i {
    color: #10b981;
    margin-right: 8px;
    width: 14px;
}

.footer-new-right {
    display: flex;
    align-items: center;
}

.footer-new-nav {
    display: flex;
    gap: 40px;
}

.footer-new-link {
    font-size: 15px;
    color: #333;
    text-decoration: none;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
}

.footer-new-link:hover {
    color: var(--primary-color);
}

.footer-new-link.active {
    color: var(--primary-color);
}

.footer-new-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.footer-new-bottom {
    padding-top: 20px;
    text-align: center;
}

.footer-new-bottom p {
    font-size: 13px;
    color: #999;
    margin: 0;
}

.footer-icp-link {
    color: inherit;
    text-decoration: none;
    margin-left: 12px;
}

.footer-icp-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .footer-new-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-new-nav {
        flex-wrap: wrap;
        gap: 20px;
    }

    .footer-new-link {
        font-size: 14px;
    }
}

/* ============ 公司介绍 ============ */
.company-intro-section {
    padding: 80px 0;
    background: var(--bg-darker);
}

.company-intro-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: center;
    margin-top: 40px;
}

.company-intro-text {
    max-width: 100%;
}

.company-intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 30px;
    text-align: justify;
}

.company-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.company-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.company-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.company-intro-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: white;
}

.company-intro-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

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

@media (max-width: 768px) {
    .company-intro-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .company-intro-image {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .company-intro-image img {
        height: 250px;
    }
    
    .company-tags {
        justify-content: center;
    }
}