/* Basic Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
    margin: 0;
    color: #1a1a1a;
    background-color: #ffffff;
    line-height: 1.5;
    font-weight: 400;
}

a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
header {
    background: #ffffff;
    padding: 0;
    border-bottom: 1px solid #e8e8e8;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 0 rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 80px;
}

header.scrolled {
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    height: 40px;
}

header.scrolled .logo img {
    height: 40px;
}

header .container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    position: relative;
    gap: 0;
    padding-left: 0;
    height: 100%;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    letter-spacing: 0.5px;
    margin-right: auto;
    margin-left: 0;
    height: 100%;
    display: flex;
    align-items: center;
}

.logo img {
    height: 80px;
    width: auto;
    object-fit: contain;
}

.logo a {
    color: inherit;
    text-decoration: none;
    display: block;
    transition: opacity 0.3s ease;
}

.logo a:hover {
    opacity: 0.8;
}

nav ul {
    display: flex;
    gap: 32px;
    transition: all 0.3s ease;
}

/* 滚动时隐藏主导航 */
header.scrolled nav ul {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

header.scrolled .mobile-menu-toggle {
    display: block;
}

/* 鼠标悬停时显示原始导航 - 简化版本 */
header.scrolled:hover nav ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 悬停时隐藏汉堡菜单 */
header.scrolled:hover .mobile-menu-toggle {
    opacity: 0;
    pointer-events: none;
}

/* 滚动状态下的移动菜单样式（点击时） */
header.scrolled nav ul.mobile-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    backdrop-filter: blur(10px);
    border-top: 1px solid #e8e8e8;
    z-index: 101;
}

header.scrolled nav ul.mobile-open li {
    margin: 8px 0;
}

header.scrolled nav ul.mobile-open li a {
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav ul li a {
    padding: 10px 0;
    font-weight: 600;
    font-size: 16px;
    border-radius: 0;
    transition: all 0.2s ease;
    position: relative;
    color: #333;
    text-decoration: none;
}

nav ul li a:hover {
    color: #ff6b35;
}

nav ul li a.active {
    color: #ff6b35;
    font-weight: 700;
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 3px;
    background: #ff6b35;
}

/* 中英文文字初始状态 */
nav ul li a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

nav ul li a .english {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    white-space: nowrap;
}

nav ul li a .chinese {
    transition: opacity 0.2s ease, visibility 0.2s ease;
    white-space: nowrap;
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.98);
    min-width: 160px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: 4px 0;
    margin-top: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    pointer-events: none;
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

/* 确保只有一个下拉菜单显示 */
.dropdown:not(:hover):not(.active) .dropdown-menu {
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    pointer-events: none;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu li a {
    display: block;
    padding: 6px 16px;
    color: #333;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 0;
    white-space: nowrap;
}

.dropdown-menu li a:hover {
    background-color: rgba(255, 107, 53, 0.1);
    color: #ff6b35;
}

/* 下拉菜单的平滑过渡效果 */
.dropdown-menu {
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

/* 防止下拉菜单重叠 */
.dropdown {
    z-index: 1000;
}

.dropdown:nth-child(2) {
    z-index: 1001;
}

.dropdown:nth-child(3) {
    z-index: 1002;
}

.dropdown:nth-child(4) {
    z-index: 1003;
}

/* 英文切换效果 */
.dropdown:hover .chinese {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.dropdown:hover .english {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* 通用菜单项翻译效果 */
nav ul li:hover .chinese {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

nav ul li:hover .english {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* 页面头部样式 */
.page-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    margin-top: 0;
}

.page-title h1 {
    font-size: 42px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.page-subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 20px;
}

.breadcrumb {
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #ff6b35;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* 服务介绍样式 */
.service-intro {
    padding: 80px 0;
    background: #fff;
}

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

.intro-text h2 {
    font-size: 36px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 40px;
}

.service-features {
    display: grid;
    gap: 30px;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* 设计分类导航 */
.design-categories {
    padding: 40px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.category-nav ul {
    display: flex;
    justify-content: center;
    gap: 30px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-nav a {
    padding: 12px 24px;
    text-decoration: none;
    color: #666;
    font-weight: 500;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.category-nav a:hover,
.category-nav a.active {
    background: #ff6b35;
    color: white;
}

/* 案例展示网格 */
.case-studies {
    padding: 80px 0;
    background: #fff;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

/* 设计流程 */
.design-process {
    padding: 80px 0;
    background: #f8f9fa;
}

.design-process h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 600;
    color: #333;
    margin-bottom: 60px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

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

.step-number {
    width: 60px;
    height: 60px;
    background: #ff6b35;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.step p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .page-title h1 {
        font-size: 32px;
    }
    
    .category-nav ul {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 设计理念样式 */
.design-philosophy {
    padding: 80px 0;
    background: #fff;
}

.design-philosophy h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 600;
    color: #333;
    margin-bottom: 60px;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.philosophy-item {
    text-align: center;
    padding: 40px 20px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.philosophy-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.philosophy-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ff6b35;
    margin-bottom: 15px;
}

.philosophy-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #666;
    transition: all 0.3s ease;
    padding: 6px;
    border-radius: 4px;
    position: absolute;
    right: 0;
    z-index: 110;
}

.mobile-menu-toggle:hover {
    background-color: rgba(255, 107, 53, 0.1);
    color: #ff6b35;
}

/* Main content */
main {
    position: relative;
}

/* Video Section */
.video-section {
    padding: 60px 0;
    background: #ffffff;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.video-section .container {
    max-width: 100%;
    padding: 0;
}

.video-wrapper {
    width: 100%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    position: relative;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
    outline: none;
    object-fit: contain;
    max-width: 100%;
}

@media (max-width: 768px) {
    .video-section {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .video-section {
        padding: 30px 0;
    }
}

/* Carousel */
.carousel {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: #ffffff;
    padding: 0;
    text-align: center;
    overflow: hidden;
}

.carousel .carousel-wrapper {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

/* 移除轮播图装饰背景 */

.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.8s ease-in-out;
    z-index: 1;
    /* 确保图片在加载时可见 */
    visibility: visible;
}

.carousel-item.active {
    opacity: 1;
    transform: translateX(0%);
    z-index: 3;
}

.carousel-item.prev {
    transform: translateX(-100%);
    z-index: 2;
}

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

@keyframes slideIn {
    from { 
        transform: translateX(100%);
    }
    to { 
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from { 
        transform: translateX(0);
    }
    to { 
        transform: translateX(-100%);
    }
}

.carousel-indicators {
    text-align: center;
    padding: 20px 0;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 10;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.3));
}

.carousel-indicators span {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin: 0 6px;
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.carousel-indicators span:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

.carousel-indicators span.active {
    background: #ff6b35;
    transform: scale(1.2);
}

/* 轮播图切换按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 24px;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 15;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

/* Hero Section */
.hero-section {
    padding: 100px 0;
    background: #ffffff;
    text-align: center;
    border-bottom: 1px solid #f0f0f0;
}



.service-categories {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 60px;
}

.category {
    font-size: 24px;
    font-weight: 500;
    color: #1a1a1a;
    letter-spacing: 3px;
    position: relative;
}

.category::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: #ff6b35;
}



/* Intro Section */
.intro {
    padding: 60px 0;
    background: #ffffff;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
}

.intro-container {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    gap: 80px;
    width: 100%;
    padding: 0 20px;
}

.intro-left {
    flex: 0 0 40%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    text-align: left;
    padding-top: 20px;
}

.main-heading {
    font-size: 96px;
    font-family: 'SourceHanSansCN-Medium';
    font-weight: 600;
    color: #333;
    margin: 0 0 30px 0;
    line-height: 1.2;
}

.sub-headings {
    margin-bottom: 0;
}

.sub-heading-1 {
    font-size: 45px;
    font-weight: 500;
    color: #6f6a6a;
    margin: 0 0 15px 0;
    line-height: 1.4;
}

.sub-heading-2 {
    font-size: 55px;
    font-weight: 400;
    color: #333;
    margin: 0;
    line-height: 1.4;
}

.intro-right {
    flex: 0 0 50%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    text-align: left;
    gap: 30px;
}

.concept-description p {
    line-height: 1.8;
    color: #333;
    margin-top: 20px;
    text-align: left;
    font-size: 18px;
}

.company-description p {
    line-height: 1.8;
    color: #333;
    margin-top: 10px;
    text-align: left;
    font-size: 18px;
}

/* Service Navigation */
.service-nav {
    padding: 60px 0;
    background: #f8f8f8;
    border-bottom: 1px solid #f0f0f0;
}

.service-categories-nav {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.service-link {
    font-size: 18px;
    font-weight: 400;
    color: #666;
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
    padding: 10px 0;
}

.service-link:hover,
.service-link.active {
    color: #ff6b35;
}

.service-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #ff6b35;
}

/* Case Studies */
.case-studies {
    padding: 80px 0;
    text-align: left;
    background: #ffffff;
}

.case-studies .container {
    position: relative;
}

.case-studies h2 {
    position: absolute;
    left: calc(-50vw + 50%);
    margin-bottom: 60px;
    font-size: 28px;
    font-weight: 500;
    color: #1a1a1a;
    letter-spacing: 1px;
    text-align: left;
    padding-left: 40px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px 40px;
    backdrop-filter: blur(10px);
}

.section-subtitle {
    font-size: 48px;
    font-weight: 400;
    color: #666666;
    letter-spacing: 2px;
    margin-left: 20px;
}

.case-studies h2::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 40px;
    width: 60px;
    height: 2px;
    background: #ff6b35;
}

.grid {
    display: grid;
    gap: 30px;
}

.grid-3x3 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.full-width-grid {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    margin-top: 80px;
    gap: 30px;
    grid-template-columns: repeat(3, 1fr);
}

.full-width-grid .case-item {
    border-radius: 0;
    box-shadow: none;
    aspect-ratio: 1;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.full-width-grid .case-item a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.full-width-grid .case-item .case-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.full-width-grid .case-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.8) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 30px;
    color: white;
}

.case-content {
    width: 100%;
}

.case-content h3 {
    font-size: 18px;
    font-weight: 500;
    margin: 0 0 8px 0;
    color: white;
    line-height: 1.3;
}

.case-content p {
    font-size: 14px;
    margin: 0 0 12px 0;
    color: rgba(255,255,255,0.9);
    line-height: 1.4;
}

.case-category {
    font-size: 12px;
    color: #ff6b35;
    font-weight: 400;
    letter-spacing: 1px;
}

.full-width-grid .case-item:hover .case-overlay,
.full-width-grid .case-item a:hover .case-overlay {
    opacity: 1;
}

.full-width-grid .case-item:hover img,
.full-width-grid .case-item a:hover img {
    transform: scale(1.05);
}

.grid-2x3 {
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
}

.case-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(0,0,0,0.12);
}

.case-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

/* Case Detail Pages */
.case-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 0 60px;
    margin-bottom: 60px;
}

.case-title h1 {
    font-size: 36px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 20px 0;
    line-height: 1.2;
}

.case-meta {
    margin-top: 20px;
}

.client-info {
    font-size: 16px;
    color: #666;
}

.client-info strong {
    color: #333;
}

.case-intro {
    margin-bottom: 80px;
}

.case-intro h2 {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 30px 0;
    line-height: 1.3;
}

.case-intro p {
    font-size: 16px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

.design-highlights,
.business-value {
    margin-bottom: 80px;
}

.design-highlights h2,
.business-value h2 {
    font-size: 32px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 40px 0;
    text-align: center;
}

.highlights-list,
.value-list {
    display: grid;
    gap: 30px;
}

.highlight-item,
.value-item {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #ff6b35;
}

.highlight-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 15px 0;
}

.highlight-item p,
.value-item p {
    font-size: 16px;
    line-height: 1.6;
    color: #555;
    margin: 0;
}

.case-gallery {
    margin-bottom: 80px;
}

.case-gallery h2 {
    font-size: 32px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 40px 0;
    text-align: center;
}

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

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

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

.related-cases {
    margin-bottom: 80px;
}

.related-cases h2 {
    font-size: 32px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 40px 0;
    text-align: center;
}

.related-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.related-case {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.related-case:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.related-case a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.related-case img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.related-case h3 {
    font-size: 16px;
    font-weight: 500;
    color: #1a1a1a;
    margin: 0;
    padding: 20px;
    text-align: center;
}

/* Contact Sidebar */
.contact-sidebar {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #FFA500 0%, #FF8C00 100%);
    padding: 25px 20px;
    border-radius: 15px;
    color: #fff;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(255, 165, 0, 0.3);
    transition: all 0.3s ease;
    max-width: 200px;
}

.contact-sidebar:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 15px 40px rgba(255, 165, 0, 0.4);
}

.contact-sidebar h4 {
    margin-top: 0;
    font-size: 14px;
    margin-bottom: 15px;
}

.contact-sidebar p {
    margin: 8px 0;
    font-size: 12px;
}

.contact-sidebar strong {
    font-size: 14px;
    display: block;
    margin: 5px 0;
}

.contact-sidebar img {
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Stats Section */
.stats-section {
    padding: 80px 0;
    background: #f8f8f8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 60px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 300;
    color: #1a1a1a;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.stat-label {
    font-size: 16px;
    color: #666;
    font-weight: 400;
}

/* Awards Section */
.awards-section {
    padding: 80px 0;
    background: #ffffff;
    text-align: center;
}
.section-subtitle-awards {
    padding: 80px 0;
    text-align: center;
}
.section-subtitle-clients {
    padding: 80px 0;
    text-align: center;
}
.awards-section h2 {
    margin-bottom: 60px;
    font-size: 48px;
    font-weight: 500;
    color: #666666;
    position: relative;
    letter-spacing: 1px;
    text-align: left;
    margin-left: 0;
    padding-left: 0;
}

.awards-section h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 60px;
    height: 2px;
    background: #ff6b35;
}

.awards-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
}

.award-item {
    padding: 30px 20px;
    background: transparent;
    border-radius: 8px;
    text-align: center;
    font-size: 16px;
    color: #1a1a1a;
    font-weight: 400;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.award-item img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.award-item:hover {
    /* 去除悬停效果 */
}

/* Simple Sections */
.simple-section {
    padding: 60px 0;
    background: #ffffff;
    text-align: center;
    margin-bottom: 2px;
    position: relative;
}

.simple-section h3 {
    margin: 0;
    font-size: 28px;
    color: #2c3e50;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(45deg, #6B73FF, #9B59B6);
    color: #fff;
    padding: 15px 18px;
    border-radius: 50%;
    display: none;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(107, 115, 255, 0.3);
    font-size: 18px;
    text-align: center;
    line-height: 1;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 30px rgba(107, 115, 255, 0.4);
}

/* Footer */
footer {
    background: rgb(0, 0, 0);
    color: #fff;
    padding: 40px 0;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    height: 10px;
}

.footer-links a {
    color: #bdc3c7;
    margin-right: 20px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FFD700;
}

.footer-links span {
    color: #95a5a6;
    margin-right: 15px;
}

/* Sub-page specific styles */
.page-header {
    background: #ffffff;
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    margin: 0;
    font-size: 42px;
    color: #2c3e50;
}

.sub-nav {
    text-align: center;
    padding: 25px 0;
    border-bottom: 1px solid #f0f0f0;
    background: #fff;
    position: sticky;
    top: 89px;
    z-index: 90;
    box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}

.sub-nav ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.sub-nav ul li a {
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-weight: 400;
    font-size: 14px;
    color: #666;
}

.sub-nav ul li a:hover {
    background-color: #f8f8f8;
    color: #ff6b35;
}

.sub-nav ul li a.active {
    background: #ff6b35;
    color: #fff;
}

.content-section {
    padding: 60px 0;
}

.content-section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    color: #2c3e50;
}

.map-placeholder {
    width: 100%;
    height: 400px;
    background: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: #666;
    margin: 40px 0;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .logo img {
        height: 40px;
    }
    
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(230, 230, 250, 0.95);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        backdrop-filter: blur(10px);
    }
    
    nav ul.mobile-open {
        display: flex;
    }
    
    nav ul li {
        margin: 5px 0;
    }
    
    .carousel {
        padding: 0;
    }
    
    .carousel-wrapper {
        height: 50vh;
        min-height: 300px;
    }
    
    .intro {
        padding: 40px 0;
        min-height: auto;
    }
    
    .intro-container {
        flex-direction: row;
        gap: 40px;
        padding: 0 15px;
        flex-wrap: wrap;
    }
    
    .intro-item {
        flex: 0 0 45%;
        min-height: 300px;
        padding: 20px 10px;
    }
    
    .company-logo img {
        max-width: 180px;
    }
    
    .company-slogan {
        font-size: 20px;
    }
    
    .company-info p {
        font-size: 15px;
    }
    
    .company-info {
        text-align: center;
    }
    
    .company-description {
        flex: 0 0 45%;
        min-height: 300px;
        text-align: left;
    }

    .section-title {
        font-size: 28px;
    }



    .service-categories {
        gap: 20px;
        flex-wrap: wrap;
    }

    .category {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .service-categories-nav {
        gap: 30px;
        flex-wrap: wrap;
    }

    .stats-grid {
        gap: 40px;
    }

    .stat-number {
        font-size: 36px;
    }
    
    .grid-3x3, .grid-2x3 {
        grid-template-columns: 1fr;
    }

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

    .case-overlay {
        padding: 20px;
    }

    .case-content h3 {
        font-size: 16px;
    }

    .case-content p {
        font-size: 13px;
    }

    .case-category {
        font-size: 11px;
    }
    
    .case-studies {
        padding: 40px 0;
    }

    .case-studies h2 {
        position: static;
        padding: 15px 20px;
        margin-bottom: 40px;
        font-size: 24px;
    }

    .case-studies h2::after {
        left: 20px;
        bottom: -5px;
    }

    .full-width-grid {
        margin-top: 0;
    }
    
    .contact-sidebar {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin: 20px auto;
        max-width: 300px;
    }
    
    .sub-nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-links {
        flex-direction: column;
        text-align: center;
    }
    
    .logo {
        font-size: 24px;
    }
    
    .logo img {
        height: 35px;
    }
    
    .case-studies h2, .content-section h2 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .carousel-wrapper {
        height: 40vh;
        min-height: 250px;
    }
    
    .intro-item {
        flex: 0 0 100%;
        min-height: 250px;
        padding: 25px 15px;
    }
    
    .company-logo img {
        max-width: 150px;
    }
    
    .company-slogan {
        font-size: 18px;
        line-height: 1.4;
    }
    
    .company-info p {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .intro-container {
        flex-direction: column;
        gap: 30px;
        padding: 0 10px;
    }
    
    .company-description {
        flex: 0 0 100%;
        min-height: 250px;
        text-align: center;
    }
    
    .case-item img {
        height: 200px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        padding: 12px 15px;
    }
}

/* Animation for scroll reveal */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    animation: slideInUp 0.6s ease forwards;
}

/* Company Map Styles */
.map-section {
    padding: 40px 0;
    text-align: center;
}

.company-map {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.company-map:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

/* Address Info Styles */
.address-info {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .address-info {
        font-size: 15px;
        margin-bottom: 18px;
    }
}

@media (max-width: 480px) {
    .address-info {
        font-size: 14px;
        margin-bottom: 15px;
    }
}

/* Article Section Styles */
.article-section {
    padding: 60px 0;
    border-bottom: 1px solid #f0f0f0;
    animation: fadeIn 0.5s ease-in-out;
}

.article-section:last-child {
    border-bottom: none;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.article-content h2 {
    color: #ff6b35;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    border-bottom: 3px solid #ff6b35;
    padding-bottom: 15px;
}

.article-body h3 {
    color: #333;
    font-size: 20px;
    font-weight: 600;
    margin: 30px 0 15px;
    position: relative;
    padding-left: 20px;
}

.article-body h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: #ff6b35;
    border-radius: 2px;
}

.article-body h4 {
    color: #555;
    font-size: 18px;
    font-weight: 600;
    margin: 25px 0 10px;
    border-left: 3px solid #ff6b35;
    padding-left: 15px;
}

.article-body p {
    color: #666;
    line-height: 1.8;
    margin: 15px 0;
    font-size: 16px;
    text-align: justify;
}

.article-body ul {
    margin: 15px 0;
    padding-left: 0;
}

.article-body li {
    color: #666;
    line-height: 1.8;
    margin: 10px 0;
    padding-left: 25px;
    position: relative;
    list-style: none;
}

.article-body li::before {
    content: '•';
    color: #ff6b35;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.article-body strong {
    color: #333;
    font-weight: 600;
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Article responsive design */
@media (max-width: 768px) {
    .article-section {
        padding: 40px 0;
    }
    
    .article-content {
        padding: 25px 20px;
        margin: 0 15px;
    }
    
    .article-content h2 {
        font-size: 26px;
        margin-bottom: 25px;
    }
    
    .article-body h3 {
        font-size: 18px;
        margin: 25px 0 12px;
        padding-left: 15px;
    }
    
    .article-body h3::before {
        width: 3px;
        height: 16px;
    }
    
    .article-body h4 {
        font-size: 16px;
        margin: 20px 0 8px;
        padding-left: 12px;
    }
    
    .article-body p {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .article-body li {
        font-size: 15px;
        padding-left: 20px;
    }
}

@media (max-width: 480px) {
    .article-content {
        padding: 20px 15px;
        margin: 0 10px;
    }
    
    .article-content h2 {
        font-size: 22px;
        margin-bottom: 20px;
    }
    
    .article-body h3 {
        font-size: 16px;
        margin: 20px 0 10px;
    }
    
    .article-body p,
    .article-body li {
        font-size: 14px;
    }
}

/* 悬浮窗组件 */
.floating-contact {
    position: fixed;
    right: 0;
    bottom: 0;
    width: 190px;
    height: 280px;
    background: rgba(127, 65, 4, 0.5); /* 半透明橙色 */
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    color: white;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    transition: all 0.3s ease;
}

.floating-contact:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.floating-contact .contact-title {
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 15px;
    line-height: 1.4;
}

.floating-contact .qr-code {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.floating-contact .qr-code img {
    width: 70px;
    height: 70px;
    border-radius: 4px;
}

.floating-contact .contact-section {
    text-align: center;
    margin-bottom: 12px;
}

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

.floating-contact .contact-label {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 5px;
    opacity: 0.9;
}

.floating-contact .contact-value {
    font-size: 13px;
    font-weight: bold;
    opacity: 0.95;
    word-break: break-all;
}



.floating-contact.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .floating-contact {
        right: 0;
        bottom: 0;
        width: 160px;
        height: 210px;
        padding: 15px;
    }
    
    .floating-contact .contact-title {
        font-size: 14px;
        margin-bottom: 12px;
    }
    
    .floating-contact .qr-code {
        width: 70px;
        height: 70px;
        margin-bottom: 12px;
    }
    
    .floating-contact .qr-code img {
        width: 60px;
        height: 60px;
    }
    
    .floating-contact .contact-label {
        font-size: 12px;
    }
    
    .floating-contact .contact-value {
        font-size: 11px;
        font-weight: bold;
    }
}


.case-detail-page {
    background: #ffffff !important;
    min-height: 100vh;
    padding: 40px 0;
}

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

.case-logo {
    margin-bottom: 20px;
}

.case-logo .logo-text {
    font-size: 32px;
    font-weight: 600;
    color: #1a1a1a;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.case-logo .logo-graphic {
    width: 20px;
    height: 20px;
    background: #ff6b35;
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    margin: 0 auto 15px;
}

.case-logo .logo-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.5;
}

.case-content {
    max-width: 1000px !important;
    width: 1000px !important;
    margin: 0 auto;
    padding: 0 20px;
    text-align: left;
}

.case-intro {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 50px;
    text-align: justify;
}

.case-sections {
    margin-top: 40px;
}

.case-section {
    margin-bottom: 30px;
}

.case-section-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 15px;
    background: #f8f9fa;
    padding: 15px 20px;
    border-left: 4px solid #ff6b35;
}

.case-section-content {
    font-size: 15px;
    line-height: 1.7;
    color: #555;
    margin-left: 20px;
}

.case-section-content ul {
    margin: 10px 0;
    padding-left: 20px;
}

.case-section-content li {
    margin-bottom: 8px;
}

.back-button {
    position: fixed;
    top: 100px;
    left: 20px;
    background: #ff6b35;
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-button:hover {
    background: #e55a2b;
    transform: translateX(-5px);
}



.job-container {
    max-width: 800px;
    margin: 0 0 30px 50px; /* 改为左对齐，移除 auto */
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 24px;
    margin: 0 0 10px 0;
    color: #000;
}

.salary-range {
    font-size: 18px;
    color: #0066cc;
    margin-left: 10px;
}

.job-details {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.job-description {
    margin-top: 20px;
}

.toggle-section {
    font-size: 18px;
    color: #000;
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 10px;
}

.toggle-section:hover {
    background-color: #f0f0f0;
}

.arrow {
    font-size: 16px;
    transition: transform 0.3s ease;
}

.description-content, .requirements-content {
    list-style-type: none !important;
    padding-left: 0 !important;
    margin: 0 0 10px 0 !important;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    text-align: left !important;
}

.description-content li, .requirements-content li {
    position: relative !important;
    margin-bottom: 10px !important;
    padding-left: 20px !important;
    text-align: left !important;
    text-align-last: left !important;
}

.description-content li:before, .requirements-content li:before {
    content: "•" !important;
    color: #0066cc !important;
    font-weight: bold !important;
    position: absolute !important;
    left: 0 !important;
}

.show {
    max-height: 400px; /* 足够显示所有内容，可根据需要调整 */
}

/* 专门针对职位描述文案左对齐的样式 */
.job-container .description-content,
.job-container .requirements-content {
    text-align: left !important;
}

.job-container .description-content li,
.job-container .requirements-content li {
    text-align: left !important;
    text-align-last: left !important;
    direction: ltr !important;
}

/* 确保项目符号和文本完全左对齐 */
.job-container .description-content li:before,
.job-container .requirements-content li:before {
    left: 0 !important;
    margin-left: 0 !important;
}

.job-container .description-content li,
.job-container .requirements-content li {
    padding-left: 20px !important;
    margin-left: 0 !important;
}

@media (max-width: 600px) {
    .job-container {
        padding: 15px;
    }

    h1 {
        font-size: 20px;
    }

    .salary-range {
        font-size: 16px;
    }

    .toggle-section {
        font-size: 16px;
    }

    .arrow {
        font-size: 14px;
    }
}