/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a365d;
    --secondary-color: #2c5282;
    --accent-color: #3182ce;
    --text-dark: #1a202c;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --transition: all 0.3s ease;
    --nav-underline-color: #fff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Saira', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container {
    max-width: 1720px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 14px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo img {
    height: 40px;
    width: auto;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
    color: #fff;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #fff;
}

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

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

.nav-menu .has-dropdown i {
    font-size: 10px;
    margin-left: 5px;
}

.nav-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.phone-link i {
    font-size: 14px;
}

.search-btn,
.lang-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: white;
    transition: var(--transition);
}

.header.scrolled .search-btn,
.header.scrolled .lang-btn {
    color: var(--text-dark);
}

.search-btn:hover,
.lang-btn:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: white;
}

.header.scrolled .mobile-menu-btn {
    color: var(--text-dark);
}

.header.scrolled a {
    color: var(--text-dark);
}

/* Hero Banner */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero .container {
    position: relative;
    height: 100%;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 30, 60, 0.7) 0%, rgba(0, 30, 60, 0.3) 50%, rgba(0, 30, 60, 0.1) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 550px;
    color: white;
    position: absolute;
    bottom: 80px;
    left: 20px;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-content p {
    font-size: 16px;
    margin-bottom: 35px;
    opacity: 0.9;
    line-height: 1.7;
    max-width: 450px;
}

.btn-learn-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background-color: white;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    /* 保留基础圆角，clip-path会覆盖 */
    transition: var(--transition);
    /* 切掉左上和右下角，15px是切角的大小 */
    clip-path: polygon(15px 0%,
            /* 左上角切掉 */
            100% 0%,
            /* 右上角 */
            100% calc(100% - 15px),
            /* 右下角切掉 */
            calc(100% - 15px) 100%,
            /* 右下角切掉 */
            0% 100%,
            /* 左下角 */
            0% 15px
            /* 左上角切掉 */
        );
}

.btn-learn-more:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-learn-more i {
    font-size: 12px;
}

/* Hero 轮播指示器 - 底部中间 */
.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

/* Hero 底部预览 - 底部右侧 */
.hero-preview {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    gap: 30px;
    z-index: 10;
}

.hero-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.hero-dots .dot.active {
    background-color: white;
    width: 24px;
    border-radius: 4px;
}

.preview-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0.6;
    padding: 8px 16px;
    border-radius: 4px;
}

.preview-item:hover,
.preview-item.active {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.preview-num {
    font-size: 12px;
    font-weight: 500;
    opacity: 0.7;
}

.preview-label {
    font-size: 13px;
    font-weight: 400;
}

/* Hero 右侧缩略图 */
.hero-thumbnail {
    position: absolute;
    top: 50%;
    right: 40px;
    transform: translateY(-50%);
    width: 120px;
    height: 80px;
    z-index: 100;
}

.thumb-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    overflow: hidden;
    transition: opacity 0.5s ease;
    cursor: pointer;
}

.thumb-slide.active {
    opacity: 1;
}

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

.thumb-arrows {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    color: white;
    font-size: 12px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.thumb-arrows i:first-child {
    margin-right: -2px;
}

/* 通用区块标题 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
}

.view-all {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.view-all:hover {
    color: var(--primary-color);
}

/* 产品展示 */
/* 产品展示 */
.products {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.products .section-header {
    margin-bottom: 50px;
}

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

.discover-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background-color: var(--border-color);
    color: var(--text-dark);
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
    clip-path: polygon(15px 0%,
            100% 0%,
            100% calc(100% - 15px),
            calc(100% - 15px) 100%,
            0% 100%,
            0% 15px);
}

.discover-more-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.discover-more-btn i {
    font-size: 11px;
}

.products-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.product-categories ul {
    list-style: none;
}

.product-categories li {
    margin-bottom: 8px;
}

.product-categories a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 13px;
    transition: var(--transition);
    display: block;
    padding: 10px 16px;
    border-radius: 4px;
}

.product-categories li.active a {
    background-color: var(--text-dark);
    color: white;
}

.product-categories a:hover {
    color: var(--text-dark);
}

.product-categories li.active a:hover {
    color: white;
}

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

.product-info {
    position: relative;
}

.product-counter {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.product-info h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
    font-size: 14px;
}

.btn-view-products {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background-color: var(--bg-light);
    color: var(--text-dark);
    text-decoration: none;
    font-size: 13px;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-view-products:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-view-products i {
    font-size: 11px;
}

.product-image img {
    width: 100%;
    max-width: 400px;
    display: block;
    margin: 0 auto;
}

/* 产品规格列表 */
.product-specs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
}

.spec-card {
    background-color: var(--bg-white);
    padding: 20px;
    border-radius: 8px;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.spec-card:hover {
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
}

.spec-image {
    margin-bottom: 15px;
    text-align: center;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    border-radius: 4px;
    overflow: hidden;
}

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

.spec-card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.spec-details {
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 11px;
}

.spec-row:last-child {
    margin-bottom: 0;
}

.spec-label {
    color: var(--text-light);
}

.spec-value {
    color: var(--text-dark);
    font-weight: 500;
}

.spec-row:last-child {
    margin-bottom: 0;
}

.spec-label {
    color: var(--text-light);
}

.spec-value {
    color: var(--text-dark);
    font-weight: 500;
    text-align: right;
}



/* About CONBYTH */
.about-conbyth {
    padding: 100px 0 0;
    background-color: var(--bg-white);
}

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

.about-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.about-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.about-left h2 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.btn-discover-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background-color: var(--text-dark);
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
    width: fit-content;
}

.btn-discover-more:hover {
    background-color: var(--primary-color);
}

.btn-discover-more i {
    font-size: 12px;
}

.about-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 40px;
}

.about-right p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
}

.about-image {
    width: 100%;
    display: flex;
    justify-content: end;
}

.about-image img {
    width: 80%;
    height: auto;
    display: block;
}

/* About CONBYTH */
.about-conbyth {
    padding: 60px 0 0;
    background-color: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 20px;
    align-items: start;
}

.about-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.about-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.about-left h2 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.btn-discover-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background-color: var(--text-dark);
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
    width: fit-content;
}

.btn-discover-more:hover {
    background-color: var(--primary-color);
}

.btn-discover-more i {
    font-size: 12px;
}

.about-right {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 40px;
}

.about-right p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.about-stats-row {
    display: flex;
    justify-content: flex-end;
    gap: 60px;
    margin-bottom: 40px;
}

.about-stats-row .stat-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.about-stats-row .stat-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
}

.about-stats-row .stat-label {
    font-size: 13px;
    color: var(--text-light);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
}



/* 为什么选择我们 */
.why-choose-us {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.why-choose-us .section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.section-title-wrap h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.section-title-wrap p {
    font-size: 14px;
    color: var(--text-light);
}



/* Features Carousel */
.features-carousel {
    position: relative;
}

.features-slider-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.features-slider {
    display: flex;
    gap: 20.5px;
    flex: 1;
    overflow: hidden;
}

.feature-card {
    position: relative;
    flex: 0 0 calc(33.333% - 14px);
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 5/3.2;
}

.feature-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

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

.feature-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 50%, transparent 100%);
    color: white;
}

.feature-icon {
    font-size: 24px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.feature-content h3 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
}

/* Carousel Arrows */
.features-carousel {
    position: relative;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 80px;
    border: none;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.carousel-arrow:hover {
    background-color: var(--primary-color);
}

.carousel-prev {
    left: 0;
    border-radius: 0 4px 4px 0;
}

.carousel-next {
    right: 0;
    border-radius: 4px 0 0 4px;
}

/* 工厂展示 */
/* 工厂展示 */
.factory {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.factory .section-header {
    margin-bottom: 50px;
}

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

/* 工厂轮播 */
.factory-carousel-wrapper {
    position: relative;
    overflow: hidden;
}

.factory-carousel {
    display: flex;
    transition: transform 0.5s ease;
}

.factory-slide {
    flex: 0 0 85%;
    padding-right: 20px;
    opacity: 0.3;
    transition: opacity 0.5s ease;
    cursor: default;
}

.factory-slide:not(.active) {
    cursor: pointer;
}

.factory-slide:not(.active):hover {
    opacity: 0.5;
}

.factory-slide.active {
    opacity: 1;
}

.slide-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0;
    background-color: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
}

.slide-text {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(180deg, #CDE0FA 0%, #FDFDFD 100%);
    position: relative;
    overflow: hidden;
}

.factory-bg-img {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 65%;
    height: auto;
    object-fit: cover;
    z-index: 0;
    opacity: 0.8;
}

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

.slide-text p {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.btn-view-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background-color: var(--text-dark);
    color: white;
    text-decoration: none;
    font-size: 13px;
    border-radius: 4px;
    transition: var(--transition);
    width: fit-content;
    clip-path: polygon(15px 0%,
            100% 0%,
            100% calc(100% - 15px),
            calc(100% - 15px) 100%,
            0% 100%,
            0% 15px);
}

.btn-view-more:hover {
    background-color: var(--primary-color);
}

.btn-view-more i {
    font-size: 11px;
}

.slide-image {
    height: 480px;
    position: relative;
}

.slide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.affiliated-tag {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 12px;
    border-radius: 4px;
}

/* 轮播指示器 */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.carousel-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background-color: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.carousel-dots .dot.active {
    background-color: var(--text-dark);
    width: 30px;
    border-radius: 5px;
}

/* 新闻资讯 */
/* 新闻资讯 */
.news {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.news .section-header {
    margin-bottom: 40px;
}

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

.news-filter {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 首页新闻加载动画 */
.news-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    background-color: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 40px;
}

.news-loading .loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    color: var(--text-light);
    font-size: 16px;
}

.news-loading .loading-spinner i {
    font-size: 32px;
    color: var(--primary-color);
}

.news-loading .loading-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    color: #e74c3c;
    font-size: 16px;
    text-align: center;
}

.news-loading .loading-error i {
    font-size: 48px;
}

.filter-btn {
    padding: 8px 16px;
    border: none;
    background-color: transparent;
    color: var(--text-light);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 4px;
}

.filter-btn.active,
.filter-btn:hover {
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.discover-more {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 13px;
    margin-left: 15px;
    transition: var(--transition);
}

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

.discover-more i {
    font-size: 11px;
}

/* 特色新闻 */
.news-featured-large {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.featured-image {
    position: relative;
    overflow: hidden;
    min-height: 420px;
    width: 1100PX;
}

.featured-image img {
    width: 100%;
    height: 100%;
    background-image: 100% 100%;
    min-height: 350px;
}

.logo-watermark {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.logo-watermark img {
    width: 100%;
    height: auto;
    min-height: auto;
}

.featured-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-tag {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--bg-light);
    color: var(--text-light);
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
    width: fit-content;
}

.featured-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.4;
}

.featured-content p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
    flex: 1;
}

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

.news-date {
    font-size: 13px;
    color: var(--text-light);
}

.btn-view-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background-color: var(--text-dark);
    color: white;
    text-decoration: none;
    font-size: 13px;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-view-more:hover {
    background-color: var(--primary-color);
}

.btn-view-more i {
    font-size: 11px;
}

/* 新闻卡片列表 */
.news-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.news-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
}

.news-card .news-tag {
    margin-bottom: 15px;
}

.news-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.card-footer .news-date {
    font-size: 12px;
}

.discover-link {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 12px;
    transition: var(--transition);
}

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

.discover-link i {
    font-size: 10px;
}

/* 页脚 */
/* 页脚 */
.footer {
    background-image: url('https://www.conbyth.com/images/footer-bg.webp');
    color: var(--text-dark);
    padding: 50px 0 15px;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-image: url('https://www.conbyth.com/images/world-map.webp');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: right center;
    opacity: 0.15;
    pointer-events: none;
}

.footer-content {
    display: flex;
    gap: 60px;
    margin-bottom: 0px;
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Logo Section */
.footer-section.logo-section {
    display: flex;
    flex-direction: column;
    flex: 5;
}

.footer-section.nav-section {
    flex: 2;
}

.footer-section.products-section {
    flex: 2;
}

.footer-section.contact-section {
    flex: 2.5;
}

.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.footer-logo {
    flex-shrink: 0;
}

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

.footer-brand h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.company-intro {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.8;
}

.company-intro strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Nav Section */
.footer-nav-columns {
    display: flex;
    gap: 20px;
}

.footer-section.nav-section h4,
.footer-section.products-section h4,
.footer-section.contact-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.footer-nav-list,
.footer-products-list {
    list-style: none;
}

.footer-nav-list li,
.footer-products-list li {
    margin-bottom: 8px;
}

.footer-nav-list a,
.footer-products-list a {
    font-size: 13px;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-nav-list a:hover,
.footer-products-list a:hover {
    color: var(--primary-color);
}

/* Contact Section */
.contact-section .contact-list {
    list-style: none;
    margin-bottom: 15px;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-list li i {
    color: var(--text-light);
    font-size: 14px;
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-list li span {
    flex: 1;
}

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

.social-links a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--text-light);
    text-decoration: none;
    background-color: transparent;
}

.social-links a:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.social-links a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Footer Bottom */
.footer-bottom {
    position: relative;
    z-index: 1;
}

.footer-bottom .container {
    border-top: 1px solid #cfd5dd;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: 13px;
    color: var(--text-light);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.footer-bottom-left {
    padding: 15px 0;
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-bottom-left p {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .products-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-categories {
        display: none;
    }

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

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

    .slider-next {
        display: none;
    }

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

    .about-left h2 {
        font-size: 32px;
    }

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

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

    .factory-slide {
        flex: 0 0 90%;
        padding-right: 15px;
    }

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

    .slide-image {
        order: -1;
        min-height: 200px;
    }

    .slide-text {
        padding: 25px;
    }

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

    .news-featured {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .links-section {
        grid-column: 1 / -1;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .footer-bottom-left {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

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

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

    .phone-link span {
        display: none;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p {
        font-size: 14px;
    }

    .hero-preview {
        display: none;
    }

    .section-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .news-filter {
        flex-wrap: wrap;
    }

    .news-featured-large {
        grid-template-columns: 1fr;
    }

    .featured-image img {
        min-height: 200px;
    }

    .featured-content {
        padding: 25px;
    }

    .featured-content h3 {
        font-size: 18px;
    }

    .news-cards {
        grid-template-columns: 1fr;
    }

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

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

    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .stat-num {
        font-size: 28px;
    }

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

    .links-section {
        flex-direction: column;
        gap: 20px;
    }

    .links-column h4.invisible {
        display: none;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* ==================== Mega Menu ==================== */
.has-megamenu {
    position: relative;
}

.mega-menu {
    position: absolute;
    top: 150%;
    left: 50%;
    transform: translateX(-50%);
    background: #f0f0f0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    padding: 8px 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: 1001;
    margin-top: 10px;
}

.has-megamenu:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    margin-top: 0;
}

.level1-link {
    display: block;
    padding: 12px 24px;
    color: #333333 !important;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.level1-link:hover {
    background: #e0e0e0;
    color: var(--primary-color) !important;
}

@media (max-width: 1024px) {
    .mega-menu {
        display: none;
    }
}

/* iPhone 15 适配 (430px) */
@media (max-width: 450px) {
    .container {
        padding: 0 16px;
    }

    .navbar {
        padding: 15px 0;
    }

    .logo img {
        height: 32px;
    }

    .hero {
        height: auto;
        min-height: 500px;
    }

    .hero-content {
        max-width: 100%;
        bottom: 60px;
        left: 16px;
        right: 16px;
    }

    .hero-content h1 {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .hero-content p {
        font-size: 13px;
        margin-bottom: 20px;
        line-height: 1.6;
    }

    .btn-learn-more {
        padding: 12px 24px;
        font-size: 13px;
    }

    .hero-dots {
        bottom: 20px;
    }

    .products {
        padding: 40px 0;
    }

    .products .section-header h2 {
        font-size: 24px;
    }

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

    .product-categories {
        display: none;
    }

    .featured-product {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .product-info h3 {
        font-size: 20px;
    }

    .product-info p {
        font-size: 13px;
    }

    .product-specs {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .spec-card {
        padding: 12px;
    }

    .spec-image {
        height: 120px;
        margin-bottom: 10px;
    }

    .spec-card h4 {
        font-size: 13px;
        margin-bottom: 10px;
    }

    .spec-row {
        margin-bottom: 6px;
        font-size: 10px;
    }

    .about-conbyth {
        padding: 40px 0 0;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 30px;
    }

    .about-left h2 {
        font-size: 24px;
    }

    .about-right {
        padding-top: 0;
    }

    .about-right p {
        font-size: 13px;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding-top: 20px;
    }

    .about-stats-row {
        flex-wrap: wrap;
        gap: 2px;
        margin-bottom: 20px;
    }

    .about-stats-row .stat-item {
        flex: 0 0 calc(50% - 10px);
        text-align: center;
    }

    .stat-num {
        font-size: 24px;
    }

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

    .about-image img {
        width: 100%;
    }

    .why-choose-us {
        padding: 40px 0;
    }

    .section-title-wrap h2 {
        font-size: 24px;
    }

    .features-slider {
        gap: 12px;
    }

    .feature-card {
        flex: 0 0 calc(100% - 0px);
    }

    .feature-content {
        padding: 16px;
    }

    .feature-content h3 {
        font-size: 14px;
    }

    .carousel-arrow {
        width: 36px;
        height: 60px;
        font-size: 14px;
    }

    .factory {
        padding: 40px 0;
    }

    .factory .section-header h2 {
        font-size: 24px;
    }

    .factory-slide {
        flex: 0 0 95%;
    }

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

    .slide-text {
        padding: 20px;
    }

    .slide-text h3 {
        font-size: 16px;
    }

    .slide-text p {
        font-size: 12px;
        margin-bottom: 16px;
    }

    .btn-view-more {
        padding: 10px 18px;
        font-size: 12px;
    }

    .slide-image {
        height: 200px;
    }

    .affiliated-tag {
        font-size: 10px;
        padding: 6px 12px;
    }

    .carousel-dots {
        margin-top: 20px;
    }

    .news {
        padding: 40px 0;
    }

    .news .section-header h2 {
        font-size: 24px;
    }

    .news-featured-large {
        margin-bottom: 20px;
    }

    .featured-image {
        min-height: 200px;
        width: 100%;
    }

    .featured-content {
        padding: 20px;
    }

    .featured-content h3 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .featured-content p {
        font-size: 12px;
    }

    .news-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .news-card {
        padding: 20px;
    }

    .news-card h4 {
        font-size: 14px;
    }

    .news-card p {
        font-size: 12px;
    }

    .footer {
        padding: 30px 0 10px;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        padding: 0 16px;
    }

    .footer-section.logo-section,
    .footer-section.nav-section,
    .footer-section.products-section,
    .footer-section.contact-section {
        flex: none;
    }

    .footer-logo img {
        height: 32px;
    }

    .company-intro {
        font-size: 12px;
    }

    .footer-nav-columns {
        gap: 30px;
    }

    .footer-section.nav-section h4,
    .footer-section.products-section h4,
    .footer-section.contact-section h4 {
        font-size: 14px;
        margin-bottom: 12px;
    }

    .contact-list li {
        font-size: 12px;
        margin-bottom: 8px;
    }

    .social-links a {
        width: 28px;
        height: 28px;
    }

    .footer-bottom .container {
        padding: 0 16px;
    }

    .footer-bottom-left {
        padding: 12px 0;
        font-size: 12px;
    }
}