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

:root {
    --primary-dark: #1a1a1a;
    --secondary-dark: #2c2c2c;
    --text-light: #ffffff;
    --text-dark: #333333;
    --text-gray: #666666;
    --border-light: #e5e5e5;
    --accent-gold: #c9a961;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    overflow-x: hidden;
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 顶部信息栏 */
.top-bar {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: var(--text-light);
    padding: 14px 0;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.3px;
}

.top-bar-content {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-left,
.top-right {
    display: flex;
    gap: 35px;
    align-items: center;
}

.top-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
    transition: var(--transition-smooth);
}

.top-item:hover {
    color: var(--accent-gold);
}

.top-item svg {
    opacity: 0.8;
    flex-shrink: 0;
}

/* 主导航栏 */
.main-header {
    background-color: #ffffff;
    padding: 22px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
}

.header-content {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 50px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 3px;
    line-height: 1;
    font-family: 'Noto Sans SC', sans-serif;
}

.logo-subtitle {
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--text-gray);
    font-weight: 500;
    margin-top: 2px;
    text-transform: uppercase;
}

.logo-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: -30px 0;
}

.main-nav {
    display: flex;
    gap: 45px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition-smooth);
    position: relative;
    padding: 12px 24px;
    text-transform: uppercase;
    border-radius: 8px;
}

.nav-link:hover {
    color: #ffffff;
    background-color: var(--primary-dark);
}

.nav-link:active {
    color: #ffffff;
    background-color: #2c5f7c;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 25px;
    justify-content: flex-end;
}

.factory-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-gray);
    font-size: 13px;
    font-weight: 500;
    padding: 10px 20px;
    border: 1.5px solid var(--border-light);
    border-radius: 25px;
    transition: var(--transition-smooth);
    letter-spacing: 0.5px;
}

.factory-link:hover {
    background-color: var(--primary-dark);
    color: var(--text-light);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.factory-link svg {
    transition: var(--transition-smooth);
}

.factory-link:hover svg {
    transform: rotate(180deg);
}

.social-icons {
    display: flex;
    gap: 10px;
}

.social-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1.5px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition-smooth);
    background: #ffffff;
}

.social-icon:hover {
    background: var(--primary-dark);
    color: var(--text-light);
    border-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 轮播图区域 */
.hero-section {
    position: relative;
    height: 1100px;
    overflow: hidden;
}

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

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

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

/* 轮播图文字覆盖层 */
.slide-content {
    position: absolute;
    top: 50%;
    left: 20%;
    transform: translateY(-50%);
    z-index: 5;
    color: #ffffff;
    max-width: 600px;
}

.slide-title {
    font-size: 72px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.slide-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 40px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    letter-spacing: 1px;
}

.slide-button {
    padding: 18px 45px;
    background: #ffffff;
    color: var(--primary-dark);
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.slide-button:hover {
    background: var(--primary-dark);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 10;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.carousel-control:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.carousel-control.prev {
    left: 40px;
}

.carousel-control.next {
    right: 40px;
}

.carousel-control svg {
    color: var(--primary-dark);
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    background: transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    padding: 0;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.indicator.active {
    background: rgba(255, 255, 255, 1);
    width: 40px;
    border-radius: 6px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-section {
        height: 650px;
    }
}

@media (max-width: 992px) {
    .top-bar-content,
    .header-content {
        padding: 0 30px;
    }
    
    .main-nav {
        gap: 30px;
    }
    
    .hero-section {
        height: 550px;
    }
    
    .carousel-control {
        width: 40px;
        height: 40px;
    }
    
    .carousel-control.prev {
        left: 20px;
    }
    
    .carousel-control.next {
        right: 20px;
    }
}

@media (max-width: 768px) {
    .top-left {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .main-nav {
        display: none;
    }
    
    .social-icons {
        display: none;
    }
    
    .hero-section {
        height: 450px;
    }
    
    .carousel-control {
        width: 35px;
        height: 35px;
    }
    
    .carousel-control.prev {
        left: 10px;
    }
    
    .carousel-control.next {
        right: 10px;
    }
    
    .carousel-indicators {
        bottom: 20px;
    }
}

/* 产品展示区域 */
.products-section {
    padding: 100px 0;
    background-color: #f8f8f8;
}

.products-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    color: var(--primary-dark);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.section-divider {
    text-align: center;
    margin-bottom: 50px;
}

.divider-icon {
    font-size: 20px;
    color: var(--accent-gold);
}

/* 产品分类标签 */
.product-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 60px;
}

.tab-btn {
    padding: 12px 30px;
    border: 2px solid var(--border-light);
    background: #ffffff;
    color: var(--text-dark);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 30px;
    letter-spacing: 0.5px;
}

.tab-btn:hover {
    border-color: var(--primary-dark);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tab-btn.active {
    background: var(--primary-dark);
    color: #ffffff;
    border-color: var(--primary-dark);
}

/* 产品子分类标签 */
.product-subtabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    padding: 20px;
    background: #ffffff;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.subtab-btn {
    padding: 10px 24px;
    border: 2px solid #e8e8e8;
    background: #f8f8f8;
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 25px;
    letter-spacing: 0.3px;
}

.subtab-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    background: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.2);
}

.subtab-btn.active {
    background: var(--accent-gold);
    color: #ffffff;
    border-color: var(--accent-gold);
}

/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.product-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

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

.product-info {
    padding: 20px;
    text-align: center;
    border-top: 1px solid #f0f0f0;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.4;
    margin: 0;
}

/* 响应式 - 产品区域 */
@media (max-width: 992px) {
    .products-section {
        padding: 80px 0;
    }
    
    .products-container {
        padding: 0 30px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .products-section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .product-tabs {
        gap: 10px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }
    
    .product-image {
        height: 220px;
    }
}

/* 页面内容区域 */
.page-content {
    padding: 100px 0;
    background-color: #f8f8f8;
    min-height: 600px;
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 50px;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    color: var(--primary-dark);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.page-divider {
    text-align: center;
    margin-bottom: 50px;
}

.about-content,
.products-content,
.faq-content,
.contact-content {
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    line-height: 1.8;
    font-size: 16px;
    color: var(--text-dark);
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.footer-about p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-social-icon:hover {
    background: var(--accent-gold);
    transform: translateY(-3px);
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-smooth);
}

.footer-links ul li a:hover {
    color: var(--accent-gold);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

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

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin: 5px 0;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .footer-content {
        padding: 0 30px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer {
        padding: 40px 0 20px;
    }
}

















/* 首页品牌展示 - 超大图片无容器 */
.brands-hero {
    background: #ffffff;
}

.brand-hero-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 700px;
    align-items: center;
}

.brand-hero-item.reverse {
    background: #f8f9fa;
}

.brand-hero-image {
    width: 100%;
    height: 100%;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px;
}

.brand-hero-image img {
    width: 100%;
    height: auto;
    max-width: 800px;
    display: block;
    transition: transform 0.5s ease;
}

.brand-hero-item:hover .brand-hero-image img {
    transform: scale(1.08);
}

.brand-hero-content {
    padding: 100px 120px;
}

.brand-hero-number {
    font-size: 140px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-gold) 0%, #d4a574 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 40px;
}

.brand-hero-content h2 {
    font-size: 52px;
    color: var(--primary-dark);
    margin-bottom: 35px;
    font-weight: 700;
    line-height: 1.2;
}

.brand-hero-content p {
    font-size: 22px;
    line-height: 2;
    color: var(--text-gray);
    margin-bottom: 50px;
}

.brand-hero-stats {
    display: flex;
    gap: 70px;
    padding-top: 50px;
    border-top: 3px solid rgba(201, 169, 97, 0.3);
}

.stat-box {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 64px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-gold) 0%, #d4a574 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 15px;
}

.stat-text {
    font-size: 18px;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

@media (max-width: 1400px) {
    .brand-hero-content {
        padding: 80px 100px;
    }
    
    .brand-hero-number {
        font-size: 120px;
    }
    
    .brand-hero-content h2 {
        font-size: 46px;
    }
}

@media (max-width: 1200px) {
    .brand-hero-content {
        padding: 60px 80px;
    }
    
    .brand-hero-number {
        font-size: 100px;
    }
    
    .brand-hero-content h2 {
        font-size: 40px;
    }
    
    .brand-hero-content p {
        font-size: 20px;
    }
}

@media (max-width: 992px) {
    .brand-hero-item {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    
    .brand-hero-image {
        min-height: 500px;
        padding: 60px;
    }
    
    .brand-hero-content {
        padding: 60px 40px;
    }
    
    .brand-hero-number {
        font-size: 90px;
    }
    
    .brand-hero-content h2 {
        font-size: 36px;
    }
    
    .brand-hero-content p {
        font-size: 18px;
    }
    
    .stat-num {
        font-size: 52px;
    }
}

@media (max-width: 768px) {
    .brand-hero-image {
        min-height: 400px;
        padding: 40px;
    }
    
    .brand-hero-content {
        padding: 40px 30px;
    }
    
    .brand-hero-number {
        font-size: 70px;
    }
    
    .brand-hero-content h2 {
        font-size: 32px;
    }
    
    .brand-hero-content p {
        font-size: 17px;
    }
    
    .brand-hero-stats {
        gap: 40px;
    }
    
    .stat-num {
        font-size: 42px;
    }
    
    .stat-text {
        font-size: 15px;
    }
}











/* 产品页品牌展示 - 创意瀑布流 */
.products-brands-creative {
    padding: 120px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.brands-creative-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
}

.brands-masonry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 80px;
}

.brand-masonry-card {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    cursor: pointer;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.brand-masonry-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 60px rgba(201, 169, 97, 0.3);
}

/* 大图 - 占2列2行 */
.brand-masonry-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

/* 中图 - 占1列1行 */
.brand-masonry-card.medium {
    grid-column: span 1;
    grid-row: span 1;
}

/* 小图 - 占1列1行 */
.brand-masonry-card.small {
    grid-column: span 1;
    grid-row: span 1;
}

/* 宽图 - 占2列1行 */
.brand-masonry-card.wide {
    grid-column: span 2;
    grid-row: span 1;
}

.brand-masonry-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.brand-masonry-card:hover img {
    transform: scale(1.1);
}

.brand-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.brand-masonry-card:hover .brand-overlay {
    opacity: 1;
}

.brand-tag {
    background: var(--accent-gold);
    color: #ffffff;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(201, 169, 97, 0.4);
}

@media (max-width: 1200px) {
    .brands-masonry-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
    
    .brand-masonry-card.large {
        grid-column: span 2;
        grid-row: span 2;
    }
}

@media (max-width: 992px) {
    .brands-masonry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .brand-masonry-card.large,
    .brand-masonry-card.wide {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 768px) {
    .products-brands-creative {
        padding: 80px 0;
    }
    
    .brands-creative-container {
        padding: 0 20px;
    }
    
    .brands-masonry-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .brand-masonry-card.large,
    .brand-masonry-card.wide,
    .brand-masonry-card.medium,
    .brand-masonry-card.small {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .brand-overlay {
        padding: 20px;
    }
    
    .brand-tag {
        font-size: 14px;
        padding: 10px 20px;
    }
}