/* Welo智能眼镜官网样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066ff;
    --primary-dark: #0052cc;
    --secondary-color: #00d4ff;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
}

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

/* 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(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

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

.admin-link {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white !important;
    padding: 8px 20px;
    border-radius: 25px;
}

.admin-link::after {
    display: none;
}

.admin-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 102, 255, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0c0c1e 0%, #1a1a3e 50%, #0a1628 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 102, 255, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(0, 212, 255, 0.15) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: float 15s infinite;
    opacity: 0.6;
}

@keyframes float {
    0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    color: white;
    line-height: 1.2;
    margin-bottom: 20px;
}

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

.hero-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 102, 255, 0.5);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-3px);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Logo图片样式 */
.logo-img {
    width: 300px;
    height: 50px;
    object-fit: contain;
    display: block;
}

.glasses-preview {
    width: 100%;
    max-width: 500px;
    height: 400px;
    background: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.glasses-icon {
    font-size: 150px;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.5));
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.5)); }
    50% { transform: scale(1.05); filter: drop-shadow(0 0 50px rgba(0, 212, 255, 0.8)); }
}

/* Banner轮播图 */
.banner-slider {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 30px;
}

.banner-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.8s ease-in-out;
}

.banner-slide {
    min-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.banner-dot.active {
    background: white;
    width: 30px;
    border-radius: 5px;
}

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
    z-index: 10;
}

.banner-arrow:hover {
    background: rgba(0, 0, 0, 0.5);
}

.banner-arrow.prev {
    left: 15px;
}

.banner-arrow.next {
    right: 15px;
}

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

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

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.section-header .highlight {
    color: var(--primary-color);
}

/* 产品展示区 */
.products-section {
    background: var(--light-color);
}

.products-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 250px;
    background: linear-gradient(135deg, #f5f7fa, #e4e8ec);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-image .emoji {
    font-size: 100px;
    transition: transform 0.4s;
}

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

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.product-model {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
}

.product-desc {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tag {
    background: #f0f4ff;
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.product-price span {
    font-size: 14px;
    font-weight: 400;
}

.btn-small {
    padding: 10px 20px;
    font-size: 14px;
}

/* 特性区域 */
.features-section {
    background: white;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 40px 30px;
    border-radius: 20px;
    transition: all 0.3s;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 255, 0.1));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 25px;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-item p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

/* 关于我们页面 */
.page-hero {
    min-height: 60vh;
    background: linear-gradient(135deg, #0c0c1e 0%, #1a1a3e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 70px;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 102, 255, 0.2) 0%, transparent 60%);
}

.page-hero-content {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    font-size: 52px;
    color: white;
    margin-bottom: 20px;
}

.page-hero p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-text {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.about-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 212, 255, 0.05));
    border-radius: 15px;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
    margin-top: 10px;
}

/* 联系页面 */
.contact-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

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

.contact-card {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.contact-card p {
    color: var(--text-light);
    font-size: 15px;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.contact-form h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    transition: border-color 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-message {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

/* 产品详情页 */
.product-detail-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.product-detail-image {
    background: linear-gradient(135deg, #f5f7fa, #e4e8ec);
    border-radius: 20px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-image .emoji {
    font-size: 200px;
}

.product-detail-info h1 {
    font-size: 36px;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.product-detail-info .model {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-detail-info .price {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.product-detail-info .description {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-detail-info .features-list {
    list-style: none;
    margin-bottom: 40px;
}

.product-detail-info .features-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.product-detail-info .features-list li::before {
    content: '✓';
    width: 25px;
    height: 25px;
    background: #e8f5e9;
    color: var(--success-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 30px;
}

.back-link:hover {
    text-decoration: underline;
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 40px;
    align-items: start;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 20px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 16px;
}

.social-links {
    display: none;
}

/* 二维码区域 */
.footer-qrcodes {
    display: flex;
    gap: 30px;
    justify-content: flex-end;
}

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

.qrcode-box {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    padding: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.qrcode-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.qrcode-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 12px;
}

.qrcode-placeholder .icon {
    font-size: 40px;
    margin-bottom: 5px;
}

.qrcode-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 5px 20px rgba(0, 102, 255, 0.4);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
}

/* 响应式设计 */
@media (max-width: 968px) {
    .logo-img {
        width: 200px;
        height: 35px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 40px;
    }

    .hero-content h1 {
        font-size: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .glasses-preview {
        height: 300px;
    }

    .glasses-icon {
        font-size: 100px;
    }

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

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

    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }

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

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

@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 32px;
    }

    .section-header h2 {
        font-size: 32px;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

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