/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 全屏高度设置 */
.full-height {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 导航栏 */
/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar:hover {
    background-color: #0a2540;
}

.navbar.scrolled {
    background-color: #0a2540;
}

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

.nav-left {
    flex: 0 0 auto;
    padding-left: 20px;
}

.logo-link {
    text-decoration: none;
    display: block;
}

.logo-img {
    height: 35px;
    width: auto;
    transition: opacity 0.3s ease;
}

.logo-img:hover {
    opacity: 0.8;
}

.nav-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    padding-right: 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #3498db;
}

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

/* 确保后台管理页面的侧边栏导航是纵向排列 */
.admin-sidebar .nav-menu {
    display: block;
}

.nav-item {
    margin: 0 1.5rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
    font-size: 1.1rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #3498db;
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #3498db;
}

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

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

.nav-link.active {
    color: #3498db;
}

.nav-link.active::after {
    width: 100%;
    background-color: #3498db;
}

/* Dropdown Menu Styles */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: fixed;
    top: 80px; /* 导航栏高度 */
    left: 0;
    background-color: rgba(10, 37, 64, 0.95);
    width: 100vw;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    z-index: 100000; /* 比导航栏的z-index高，确保显示在上面 */
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease;
    visibility: hidden;
    padding: 0;
}

/* 仅在没有JavaScript时使用，现在由JavaScript控制下拉菜单显示 */
.dropdown:hover .dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

/* 保持下拉菜单在鼠标悬停时显示 */
.dropdown-menu:hover {
    display: block;
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    width: 100%;
    height: 300px; /* 增加高度，使下拉菜单更长 */
}

.dropdown-item {
    color: white;
    text-decoration: none;
    display: block;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-right: 1px solid rgba(52, 152, 219, 0.5);
}

.dropdown-item video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.dropdown-item:last-child {
    border-right: none;
}

.dropdown-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.dropdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0.1) 100%);
    z-index: 1;
}

.dropdown-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    z-index: 2;
    color: white;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
}

.dropdown-content h3 {
    margin: 0 0 10px 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.dropdown-content p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.dropdown-video-disclaimer {
    position: absolute;
    bottom: 10px;
    right: 10px;
    font-size: 0.8rem;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 3px;
    z-index: 3;
    margin: 0;
    max-width: 80%;
    text-align: right;
    opacity: 0.9;
}

/* Specific background images for each dropdown item */
.overseas-marketing {
    background-image: url('../images/portfolio/philips.jpg');
}

.brand-marketing {
    background-image: url('../images/portfolio/sharp.jpg');
}

.performance-marketing {
    background-image: url('../images/portfolio/tcl.jpg');
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.navbar .nav-menu {
    display: flex;
    list-style: none;
}

.navbar .nav-item {
    margin-left: 30px;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #3498db;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    overflow: hidden;
    padding: 0 20px; /* 添加内边距，确保内容不会紧贴屏幕边缘 */
    box-sizing: border-box;
}

.hero-content {
    max-width: 1000px;
    z-index: 2;
    position: relative;
    margin: 0 auto;
    text-align: center;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.video-background video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    margin: 0;
    padding: 0;
    display: block;
    overflow: hidden;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 25px;
    animation: fadeInUpHero 1s ease;
    animation-fill-mode: both;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    text-align: center;
    font-family: 'Noto Sans SC', sans-serif;
    font-weight: 900;
    line-height: 1.2; /* 优化行高，确保长文本不会重叠 */
    transition: font-size 0.3s ease;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    animation: fadeInUpHero 1s ease 0.2s;
    animation-fill-mode: both;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
    text-align: center;
    font-family: 'Noto Sans SC', sans-serif;
    font-weight: 500;
    line-height: 1.5; /* 优化行高，确保长文本不会重叠 */
    transition: font-size 0.3s ease;
}

.hero-disclaimer {
    position: absolute;
    bottom: 0px;
    right: 0px;
    font-size: 0.7rem !important;
    animation: fadeInUp 1s ease 0.3s !important;
    animation-fill-mode: both;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    opacity: 0.9;
    font-weight: 400 !important;
    color: #fff;
    padding: 0;
    background: none;
    border-radius: 0;
    z-index: 1;
    margin: 0;
    line-height: 1.2;
}

.hero-description {
    max-width: 800px;
    margin: 0 auto 40px;
    animation: fadeInUp 1s ease 0.3s;
    animation-fill-mode: both;
}

.hero-description p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.3s;
    animation-fill-mode: both;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 200px;
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.feature-icon:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.feature-icon i {
    font-size: 2rem;
    color: #fff;
}

.feature-text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
}

.feature-text p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.4;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: #0066cc;
    color: #fff;
}

.btn-primary:hover {
    background-color: #ff5252;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 107, 107, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background-color: #fff;
    color: #333;
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 24px;
    animation: bounce 2s infinite;
}

/* 鼠标图标 */
.mouse-icon {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid #fff;
    border-radius: 15px;
    position: relative;
    opacity: 0.8;
}

.mouse::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 10px;
    background-color: #fff;
    border-radius: 2px;
    animation: mouse-wheel 2s infinite;
}

@keyframes mouse-wheel {
    0% {
        opacity: 1;
        top: 10px;
    }
    100% {
        opacity: 0;
        top: 25px;
    }
}

/* 合作伙伴部分 */
.partners {
    padding: 100px 0;
    background-color: #f9f9f9;
    overflow: hidden;
}

.partners-slider {
    position: relative;
    width: 100%;
    overflow: hidden;
    height: auto;
    min-height: 350px; /* 三行的最小高度 */
}

.partners-track {
    display: flex;
    width: fit-content;
    animation: scroll 30s linear infinite;
}

.partners-track.track-1 {
    animation: scroll-right 40s linear infinite;
    width: calc(200px * 16 + 30px * 32); /* 16个logo的宽度（8+8） */
}

.partners-track.track-2 {
    animation: scroll-right 40s linear infinite;
    margin-top: 20px; /* 行之间的间距 */
    width: calc(200px * 16 + 30px * 32); /* 16个logo的宽度（8+8） */
}

.partners-track.track-3 {
    animation: scroll-right 40s linear infinite;
    margin-top: 20px; /* 行之间的间距 */
    width: calc(200px * 16 + 30px * 32); /* 16个logo的宽度（8+8） */
}

/* 确保鼠标悬停时动画继续播放 */
.partners-track:hover,
.partners-slider:hover {
    animation-play-state: running !important;
}

.partners-track.track-1:hover,
.partners-track.track-2:hover {
    animation-play-state: running !important;
}

.partner-logo {
    flex: 0 0 auto;
    width: 200px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 30px;
    filter: grayscale(0%);
    opacity: 1;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

/* 错开滚动动画 */
@keyframes scroll-right {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.partner-logo img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

.partner-logo img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 一站式解决方案能力 */
.solutions-section {
    padding: 120px 0;
    background-color: #ffffff;
    position: relative;
}

.solutions-header {
    text-align: center;
    margin-bottom: 80px;
    padding: 0 20px;
}

.solutions-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1a1a;
    line-height: 1.2;
    background: linear-gradient(90deg, #1890ff 0%, #52c41a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.solutions-subtitle {
    font-size: 1.125rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 400;
}

.solutions-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 80px;
    align-items: center;
    justify-content: space-between;
}

/* 左侧内容区域 */
.solutions-left {
    flex: 1;
    position: relative;
    min-height: 400px;
}

.solution-content {
    display: none;
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-content.active {
    display: block;
    opacity: 1;
}

.solution-content-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1890ff 0%, #52c41a 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.3);
}

.solution-content-icon i {
    font-size: 2.5rem;
    color: #ffffff;
}

.solution-content-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1a1a;
    line-height: 1.2;
}

.solution-content-desc {
    font-size: 1.125rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.7;
    max-width: 600px;
}

.solution-content-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: #444;
}

.feature-item i {
    color: #1890ff;
    font-size: 1.25rem;
}

/* 右侧按钮区域 */
.solutions-right {
    flex: 0 0 300px;
    position: relative;
}

.solution-buttons {
    position: relative;
    height: 500px;
    width: 100%;
}

.button-container {
    position: absolute;
    width: 100%;
    transform-origin: left center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 按钮弧度排列 */
.button-container:nth-child(1) {
    top: 0;
    transform: rotate(-15deg);
}

.button-container:nth-child(2) {
    top: 120px;
    transform: rotate(-5deg);
}

.button-container:nth-child(3) {
    top: 240px;
    transform: rotate(5deg);
}

.button-container:nth-child(4) {
    top: 360px;
    transform: rotate(15deg);
}

.solution-button {
    width: 100%;
    padding: 20px 24px;
    border: 2px solid #e8e8e8;
    background-color: #ffffff;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.125rem;
    font-weight: 500;
    color: #333;
    text-align: left;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.solution-button:hover {
    border-color: #1890ff;
    box-shadow: 0 4px 20px rgba(24, 144, 255, 0.2);
    transform: translateY(-4px);
}

.solution-button.active {
    border-color: #1890ff;
    background: linear-gradient(135deg, #1890ff 0%, #52c41a 100%);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.4);
    transform: translateY(-8px);
}

.button-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-button.active .button-icon {
    background-color: rgba(255, 255, 255, 0.3);
}

.button-icon i {
    font-size: 1.5rem;
}

.solution-button.active .button-icon i {
    color: #ffffff;
}

.solution-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.solution-item.animate-in {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1890ff 0%, #52c41a 100%);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.solution-item:hover::before {
    transform: scaleX(1);
}

.solution-icon {
    width: 96px;
    height: 96px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.1) 0%, rgba(82, 196, 26, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.solution-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.2) 0%, rgba(82, 196, 26, 0.2) 100%);
    opacity: 0;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-item:hover .solution-icon {
    transform: scale(1.1);
}

.solution-item:hover .solution-icon::after {
    opacity: 1;
}

.solution-icon i {
    font-size: 2.5rem;
    color: #1890ff;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.solution-item:hover .solution-icon i {
    transform: scale(1.1);
}

.solution-title {
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: #1a1a1a;
    font-weight: 600;
    line-height: 1.4;
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-item:hover .solution-title {
    color: #1890ff;
}

.solution-desc {
    color: #666;
    line-height: 1.6;
    font-size: 0.9375rem;
    font-weight: 400;
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-item:hover .solution-desc {
    color: #444;
}

.solutions-cta {
    text-align: center;
    margin-top: 0;
}

.solutions-cta .btn {
    padding: 16px 56px;
    font-size: 1.125rem;
    font-weight: 500;
    border-radius: 8px;
    background: linear-gradient(90deg, #1890ff 0%, #52c41a 100%);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(24, 144, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-block;
    border: none;
}

.solutions-cta .btn:hover {
    background: linear-gradient(90deg, #40a9ff 0%, #73d13d 100%);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .solutions-content {
        gap: 60px;
    }
    
    .solutions-right {
        flex: 0 0 250px;
    }
    
    .solution-content-title {
        font-size: 1.75rem;
    }
    
    .solution-content-desc {
        font-size: 1rem;
    }
}

@media (max-width: 992px) {
    .solutions-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .solutions-right {
        flex: 0 0 100%;
    }
    
    .solution-buttons {
        height: auto;
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .button-container {
        position: relative;
        transform: none;
        top: 0;
        width: calc(50% - 10px);
    }
    
    .solution-button {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .solutions-header {
        text-align: center;
        padding: 0 20px;
    }
    
    .solutions-title {
        font-size: 1.75rem;
    }
    
    .solutions-subtitle {
        font-size: 0.9375rem;
    }
    
    .button-container {
        width: 100%;
    }
    
    .solution-content-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 20px;
    }
    
    .solution-content-icon i {
        font-size: 2rem;
    }
    
    .solution-content-title {
        font-size: 1.5rem;
    }
    
    .solution-content-desc {
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    .solutions-content {
        gap: 30px;
    }
    
    .solutions-title {
        font-size: 1.5rem;
    }
    
    .solution-content-title {
        font-size: 1.25rem;
    }
    
    .solution-content-features {
        gap: 10px;
    }
    
    .feature-item {
        font-size: 0.875rem;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .solutions-section {
        padding: 80px 0;
    }
    
    .solutions-header {
        margin-bottom: 60px;
    }
    
    .solutions-title {
        font-size: 2rem;
    }
    
    .solutions-subtitle {
        font-size: 1rem;
    }
    
    .solutions-content {
        gap: 40px;
    }
    
    .solutions-right {
        flex: 0 0 250px;
    }
    
    .solution-content-title {
        font-size: 1.75rem;
    }
    
    .solution-content-desc {
        font-size: 1rem;
    }
    
    .solution-button {
        font-size: 1rem;
        padding: 16px 20px;
    }
}

@media (max-width: 992px) {
    .solutions-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .solutions-right {
        width: 100%;
        flex: auto;
        margin-top: 60px;
    }
    
    .solution-buttons {
        height: auto;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    
    .button-container {
        position: relative;
        transform: none;
        top: auto;
        width: 100%;
    }
    
    .solution-button {
        justify-content: center;
    }
    
    .solution-content-features {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .solutions-section {
        padding: 60px 0;
    }
    
    .solutions-header {
        margin-bottom: 48px;
    }
    
    .solutions-title {
        font-size: 1.75rem;
    }
    
    .solutions-subtitle {
        font-size: 0.9375rem;
    }
    
    .solution-content-title {
        font-size: 1.5rem;
    }
    
    .solution-content-desc {
        font-size: 0.9375rem;
    }
    
    .solution-button {
        font-size: 0.9375rem;
        padding: 14px 18px;
    }
}

@media (max-width: 480px) {
    .solutions-section {
        padding: 60px 0;
    }
    
    .solutions-title {
        font-size: 1.5rem;
    }
    
    .solution-content-icon {
        width: 64px;
        height: 64px;
    }
    
    .solution-content-icon i {
        font-size: 2rem;
    }
    
    .solution-button {
        flex-direction: column;
        gap: 12px;
    }
    
    .button-icon {
        width: 40px;
        height: 40px;
    }
    
    .button-icon i {
        font-size: 1.25rem;
    }
}

/* 通用部分样式 */
.section {
    padding: 80px 0;
}

.section-alt {
    background-color: #f8f9fa;
}

/* 服务展示区域 */
.services-showcase {
    padding: 0;
    background-color: #fff;
    width: 100%;
}

.services-container {
    display: flex;
    height: 100vh;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.service-item {
    flex: 1;
    position: relative;
    overflow: hidden;
    height: 100vh;
    box-sizing: border-box;
}

.video-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.video-carousel video.active {
    opacity: 1;
}

.service-video-disclaimer {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 0.8rem;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
    padding: 5px 10px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    z-index: 10;
    margin: 0;
    max-width: 80%;
    text-align: right;
}

.service-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
    background: rgba(0, 0, 0, 0.4);
}

.service-content .service-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    font-family: 'Noto Sans SC', sans-serif;
}

.service-btn {
    display: inline-block;
    background-color: #008080; /* 深青色 */
    color: #000; /* 黑色文字 */
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.service-btn:hover {
    background-color: #006666; /* 深青色悬停效果 */
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 热点资讯区域 */
.hot-news {
    background-color: #ffffff;
    color: #333;
    height: auto;
    padding: 100px 0 80px;
    margin: 0;
    display: block;
    position: relative;
    overflow: visible;
}

.hot-news-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-bottom: 20px; /* 底部添加间距 */
}

.hot-news-header {
    margin-bottom: 80px; /* 与资源优势部分保持一致 */
    padding: 0;
    max-width: 1200px; /* 与容器保持一致 */
    margin-left: 0; /* 左对齐，与资源优势部分保持一致 */
    margin-right: auto;
    position: relative;
    padding-left: 20px;
    padding-right: 20px;
    width: 100%;
    text-align: left;
}

.hot-news-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #333;
    font-family: 'Noto Sans SC', sans-serif;
    position: relative;
    display: inline-block;
    margin-left: 0;
    padding: 0 20px;
    line-height: 1.2;
    z-index: 1;
}

.hot-news-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: -20px;
    width: calc(100% + 40px);
    height: 45%;
    background-color: #20b2aa;
    z-index: -1;
    transform: translateX(0);
}

.hot-news-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    color: #666;
    font-family: 'Noto Sans SC', sans-serif;
    margin-top: 5px;
    margin-left: 0;
    padding: 0 20px;
    line-height: 1.4;
    text-align: left;
}

/* 行业共建内容区域 */
.industry-partnership-content {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.whitepaper-card {
    background-color: #1a1f2e;
    border-radius: 12px;
    overflow: hidden;
    width: calc(50% - 20px);
    min-width: 300px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whitepaper-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.whitepaper-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.whitepaper-image {
    height: 200px;
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.whitepaper-link:hover .card-image {
    transform: scale(1.05);
}

.whitepaper-info {
    padding: 24px;
}

.whitepaper-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #ffffff;
}

.whitepaper-description {
    font-size: 1rem;
    color: #cccccc;
    margin-bottom: 20px;
    line-height: 1.6;
}

.download-link {
    display: inline-flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 500;
    color: #20b2aa;
    transition: color 0.3s ease;
}

.download-link:hover {
    color: #25d3cd;
}

.download-link::after {
    content: '→';
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.whitepaper-link:hover .download-link::after {
    transform: translateX(5px);
}

.news-content {
    display: flex;
    justify-content: center; /* 居中对齐，与资源优势部分保持一致 */
    margin: 0;
    padding: 0 20px 40px;
    gap: 40px;
    flex: 1;
    width: 100%;
    max-width: 1200px; /* 与容器保持一致 */
    margin-left: auto;
    margin-right: auto;
    position: relative;
    height: auto;
    min-height: 0;
    flex-wrap: wrap; /* 允许在小屏幕上换行 */
}

.news-main {
    flex: 0 0 auto; /* 改为auto，让内容决定宽度 */
    display: flex;
    flex-direction: column;
    width: calc(50% - 20px); /* 设置为50%宽度减去一半间隙 */
    max-width: none; /* 移除最大宽度限制 */
    position: relative; /* 添加相对定位 */
    height: 100%; /* 改为100%，确保填充整个容器高度 */
    aspect-ratio: 16/9; /* 设置为16:9的长方形比例 */
    min-width: 300px; /* 添加最小宽度，确保在小屏幕上有合适的显示效果 */
}

.news-grid {
    flex: 0 0 auto; /* 改为auto，让内容决定宽度 */
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 40px; /* 与1大和4小之间的间隙保持一致 */
    width: calc(50% - 20px); /* 设置为50%宽度减去一半间隙 */
    max-width: none; /* 移除最大宽度限制 */
    height: 100%; /* 改为100%，确保填充整个容器高度 */
    aspect-ratio: 16/9; /* 设置为16:9的长方形比例 */
    min-width: 300px; /* 添加最小宽度，确保在小屏幕上有合适的显示效果 */
}

.news-link {
    display: block;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    transition: transform 0.3s ease;
    height: 100%; /* 改为100%，确保填充整个容器高度 */
}

.news-link:hover {
    transform: scale(1.03);
}

.news-image {
    width: 100%;
    height: 100%; /* 改为100%，确保填充整个容器高度 */
    object-fit: cover;
    display: block;
    /* 移除aspect-ratio，因为父容器已经设置了16:9比例 */
}

.news-main .news-image {
    height: 100%;
    /* 移除aspect-ratio，因为父容器已经设置了16:9比例 */
}

.news-grid .news-image {
    height: 100%;
    /* 移除aspect-ratio，因为父容器已经设置了16:9比例 */
}

/* 底部间隙，与顶部间距相同 */
.hot-news-footer {
    height: 40px; /* 与padding-top: 40px相同的高度 */
    width: 100%;
}

.news-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: #fff;
}

.news-main .news-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.news-main .news-desc {
    font-size: 1rem;
    opacity: 0.9;
}

.news-grid .news-title {
    font-size: 1.1rem;
    font-weight: 500;
}

/* 服务概览区域 */
.services-overview {
    padding: 80px 0;
    background-color: #f8f9fa;
}

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

.service-card {
    background-color: #fff;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.service-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    color: #0066cc;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* 视频展示部分 */
.video-showcase-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.main-video {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.main-video video {
    width: 100%;
    height: auto;
    display: block;
}

.video-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: #fff;
}

.video-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.video-playlist {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.playlist-item {
    display: flex;
    gap: 15px;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.playlist-item:hover,
.playlist-item.active {
    background-color: #f8f9fa;
}

.playlist-item img {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
}

.video-title {
    font-weight: 500;
    display: flex;
    align-items: center;
}

/* 案例展示部分 */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 8px 20px;
    background-color: transparent;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background-color: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

/* 成功案例预览区域 */
.portfolio-preview {
    padding: 60px 0 80px;
    background-color: #f8f9fa;
    position: relative;
    z-index: 1;
}

.portfolio-preview .section-header {
    margin-bottom: 30px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 300px;
    opacity: 0;
    transform: translateY(30px);
    z-index: 1;
}

.portfolio-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    z-index: 2;
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 20px;
    text-align: center;
    z-index: 10;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    margin-bottom: 20px;
}

.portfolio-more {
    text-align: center;
}

.portfolio-more .btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #0066cc;
    color: #fff;
    border: none;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.portfolio-more .btn:hover {
    background-color: #ff5252;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 107, 107, 0.3);
}

.portfolio-link {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    font-size: 1.2rem;
}

/* 关于我们部分 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #555;
}

.stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0066cc;
    margin-bottom: 10px;
}

.stat-label {
    font-weight: 500;
    color: #666;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* 联系我们部分 */
.contact-content {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    align-items: center;
    min-height: 400px;
}

.contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px 0;
}

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

.contact-form {
    flex: 1;
    background-color: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-text h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.contact-text p {
    color: #666;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 页脚 */
.footer {
    background-color: #0a2540 !important;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-left {
    flex: 1;
    padding-right: 40px;
}

.footer-nav {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.footer-nav-item {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.footer-nav-item:hover {
    color: #20b2aa;
}

.footer-nav-separator {
    margin: 0 15px;
    color: #666;
}

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

.footer-label {
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 16px;
}

.footer-address-line,
.footer-email-line {
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.footer-logo-img {
    max-width: 150px;
    margin-bottom: 20px;
}

.back-to-top {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    color: #fff !important;
    text-decoration: none !important;
    transition: all 0.3s ease;
    margin-top: 20px;
    margin-left: 130px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 2px;
    position: relative;
}

.back-to-top:hover {
    color: #20b2aa !important;
    transform: translateY(-3px);
}

.back-to-top-text {
    font-size: 14px;
    margin-bottom: 5px;
    font-weight: normal;
    line-height: 1.5;
}

.back-to-top-symbol {
    font-size: 16px;
    font-weight: normal;
    line-height: 1;
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%) rotate(-90deg);
}



/* 固定定位的返回顶部按钮 */
.back-to-top-fixed {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.back-to-top-fixed:hover {
    background-color: #ff5252;
    transform: translateY(-5px);
}

.social-links a:hover {
    background-color: #e50914;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: left;
    padding-top: 0px;
    color: #aaa;
    font-size: 14px;
    white-space: nowrap;
}

/* 返回顶部按钮 */
.back-to-top-fixed {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    border: none;
    cursor: pointer;
}

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

.back-to-top-fixed:hover {
    background-color: #ff5252;
    transform: translateY(-5px);
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUpHero {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 0.8;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

/* 响应式设计 */
@media (max-width: 1400px) {
    /* 针对14寸显示器的优化 */
    .hero-content h1 {
        font-size: 3.5rem;
    }
    
    .hero-content p {
        font-size: 1.3rem;
    }
    
    .news-content {
        max-width: 100%; /* 在大屏幕上使用100%宽度 */
        padding: 0 40px 40px;
    }
    
    .news-main,
    .news-grid {
        width: calc(50% - 20px); /* 保持50%宽度 */
    }
}

/* 14英寸显示器(1366x768)专用优化 */
@media (max-width: 1366px) {
    /* 优化英雄区域 */
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    /* 优化服务展示 */
    .service-content .service-title {
        font-size: 2rem;
    }
    
    /* 优化热点资讯 */
    .news-content {
        gap: 30px;
        padding: 0 30px 40px;
    }
    
    .news-main,
    .news-grid {
        width: calc(50% - 15px);
    }
    
    /* 优化合作伙伴 */
    .partner-logo {
        width: 180px;
        height: 90px;
        margin: 0 25px;
    }
    
    /* 优化服务展示容器 */
    .services-container {
        max-width: 100%;
        padding: 0;
    }
}

@media (max-width: 1200px) {
    /* 针对中等屏幕的优化 */
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .service-content .service-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    .about-content,
    .video-showcase-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-content {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .hero-description p {
        font-size: 1rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .news-content {
        padding: 0 20px 40px;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }
    
    .nav-left {
        flex: 0 0 50%;
    }
    
    .nav-right {
        flex: 0 0 50%;
        display: flex;
        justify-content: flex-end;
    }
    
    .navbar .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #0a2540;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: left 0.3s ease;
    }
    
    .navbar .nav-menu.active {
        left: 0;
    }
    
    .navbar .nav-item {
        margin: 0 0 30px 0;
    }
    
    .navbar .hamburger {
        display: flex;
        position: absolute;
        right: 20px;
        top: 20px;
        z-index: 100000;
        cursor: pointer;
    }
    
    .navbar .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .navbar .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .navbar .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .hero-description p {
        font-size: 1rem;
    }
    
    .mouse-icon {
        bottom: 80px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 25px;
        margin-bottom: 30px;
    }
    
    .feature-item {
        flex-direction: row;
        text-align: left;
        width: 100%;
        max-width: 300px;
    }
    
    .feature-icon {
        margin-right: 15px;
        margin-bottom: 0;
        min-width: 60px;
        height: 60px;
    }
    
    .feature-icon i {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stats {
        justify-content: space-around;
    }
    
    .portfolio-filter {
        flex-wrap: wrap;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .services-container {
        flex-direction: column;
        height: auto;
    }
    
    .service-item {
        height: 400px;
        margin-bottom: 20px;
    }
    
    .service-content .service-title {
        font-size: 2rem;
    }
    
    .hot-news {
        height: auto; /* 在平板和手机上改为自动高度 */
    }
    
    .hot-news-header {
        padding: 30px 0 0;
        max-width: 600px; /* 在平板上限制最大宽度 */
        margin-left: auto;
        margin-right: auto;
    }
    
    .hot-news-title {
        font-size: 2rem;
        margin-left: 0;
        padding: 0 10px;
    }
    
    .news-content {
    flex-direction: column;
    gap: 25px;
    padding: 0 20px 80px;
    max-width: 100%;
}
    
    .news-main {
        margin-bottom: 0;
        flex: 1;
        max-width: 100%;
        aspect-ratio: 16/9;
    }
    
    .news-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        flex: 1;
        max-width: 100%;
        aspect-ratio: auto;
    }
    
    .news-grid .news-link {
        aspect-ratio: 16/9;
    }
    
    /* 行业共建响应式样式 - 平板 */
    .industry-partnership-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .whitepaper-card {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hot-news {
        height: auto; /* 在手机上改为自动高度 */
        padding-top: 30px; /* 在手机上减少顶部间距 */
    }
    
    .hot-news-container {
        padding: 0;
    }
    
    .hot-news-header {
        padding: 20px 0 0;
        max-width: 400px; /* 在手机上进一步限制最大宽度 */
        margin-left: auto;
        margin-right: auto;
    }
    
    .hot-news-title {
        font-size: 1.8rem;
        margin-left: 0; /* 重置为0，将由JavaScript动态设置 */
    }
    
    .news-content {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px 80px;
        max-width: 100%;
    }
    
    .news-main {
        width: 100%;
        aspect-ratio: 16/9;
        min-width: auto;
    }
    
    .news-grid {
        width: 100%;
        grid-template-columns: 1fr;
        gap: 15px;
        aspect-ratio: auto;
        min-width: auto;
    }
    
    .news-grid .news-link {
        aspect-ratio: 16/9;
        height: auto;
    }
    
    .news-main .news-title {
        font-size: 1.5rem;
    }
    
    .news-grid .news-title {
        font-size: 1rem;
    }
    
    /* 行业共建响应式样式 */
    .industry-partnership-content {
        flex-direction: column;
        gap: 25px;
    }
    
    .whitepaper-card {
        width: 100%;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .partner-logo {
        width: 150px;
        height: 80px;
        margin: 0 15px;
    }
    
    .logo-img {
        height: 30px;
    }
}

/* 视频播放器样式 */
.video-player-container {
    position: relative;
    width: 100%;
    background-color: #000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 品牌客户滚动条移动端响应式样式 */
@media (max-width: 768px) {
    .partners {
        padding: 60px 0;
    }
    
    .partners-slider {
        min-height: 250px;
    }
    
    .partner-logo {
        width: 120px;
        height: 80px;
        margin: 0 15px;
    }
    
    .partner-logo img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
    }
    
    /* 调整滚动动画速度 */
    .partners-track.track-1,
    .partners-track.track-2,
    .partners-track.track-3 {
        animation-duration: 50s;
    }
    
    /* 调整轨道宽度，适应移动端 */
    .partners-track.track-1,
    .partners-track.track-2,
    .partners-track.track-3 {
        width: calc(120px * 16 + 15px * 32);
    }
}

@media (max-width: 480px) {
    .partners-slider {
        min-height: 200px;
    }
    
    .partner-logo {
        width: 100px;
        height: 60px;
        margin: 0 10px;
    }
    
    /* 进一步调整滚动动画速度 */
    .partners-track.track-1,
    .partners-track.track-2,
    .partners-track.track-3 {
        animation-duration: 60s;
    }
    
    /* 进一步调整轨道宽度 */
    .partners-track.track-1,
    .partners-track.track-2,
    .partners-track.track-3 {
        width: calc(100px * 16 + 10px * 32);
    }
}

/* 页脚移动端响应式样式 */
@media (max-width: 768px) {
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        margin-bottom: 30px;
    }
    
    .footer-left {
        padding-right: 0;
        width: 100%;
    }
    
    .footer-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }
    
    .footer-nav-separator {
        display: none;
    }
    
    .footer-nav-item {
        display: block;
        padding: 5px 10px;
    }
    
    .footer-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-right {
        width: 100%;
        align-items: center;
    }
    
    .footer-logo-img {
        max-width: 120px;
    }
    
    /* 调整返回顶部按钮样式 */
    .back-to-top {
        writing-mode: horizontal-tb;
        margin-left: 0;
        position: static;
    }
    
    .back-to-top-symbol {
        position: static;
        transform: none;
        margin-top: 5px;
    }
    
    .footer-bottom {
        white-space: normal;
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 30px 0 20px;
    }
    
    .footer-nav {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .footer-address-line,
    .footer-email-line {
        font-size: 13px;
    }
    
    .footer-bottom {
        font-size: 12px;
    }
}

.video-player-container video {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
}

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-player-container:hover .video-controls,
.video-controls.show {
    opacity: 1;
}

.play-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.play-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.progress-container {
    flex: 1;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
}

.progress-bar {
    height: 100%;
    background-color: #e50914;
    border-radius: 3px;
    width: 0%;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    right: -8px;
    top: -5px;
    width: 16px;
    height: 16px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.progress-container:hover .progress-bar::before {
    opacity: 1;
}

.time-display {
    color: #fff;
    font-size: 14px;
    min-width: 100px;
}

.right-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.volume-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.volume-btn:hover {
    color: #e50914;
}

.volume-slider-container {
    position: relative;
    width: 80px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    cursor: pointer;
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: transparent;
    outline: none;
    cursor: pointer;
    position: absolute;
    top: 0;
    left: 0;
}

.volume-slider::-webkit-slider-track {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background-color: #fff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.volume-slider::-moz-range-track {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background-color: #fff;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.fullscreen-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.fullscreen-btn:hover {
    color: #e50914;
}

.video-info {
    padding: 20px;
    background-color: #f9f9f9;
}

.video-info h3 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 20px;
}

.video-info p {
    margin: 0;
    color: #666;
    font-size: 16px;
}

.video-playlist {
    margin-top: 30px;
}

.playlist-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 10px;
}

.playlist-item:hover {
    background-color: #f0f0f0;
}

.playlist-item.active {
    background-color: #e50914;
    color: #fff;
}

.playlist-item img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 15px;
}

.playlist-item .video-title {
    font-size: 16px;
    font-weight: 500;
}

/* 响应式视频播放器 */
@media (max-width: 768px) {
    .video-controls {
        padding: 15px;
        flex-wrap: wrap;
    }
    
    .time-display {
        order: 3;
        width: 100%;
        margin-top: 5px;
        min-width: auto;
    }
    
    .volume-slider-container {
        width: 60px;
    }
}

/* 首页手机端自适应样式 */
@media (max-width: 768px) {
    /* 服务展示区域 */
    .services-showcase {
        height: auto;
        min-height: 100vh;
    }
    
    .services-container {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }
    
    .service-item {
        height: 50vh;
        min-height: 400px;
    }
    
    .service-content .service-title {
        font-size: 2rem;
        margin-bottom: 25px;
    }
    
    .service-btn {
        padding: 10px 25px;
        font-size: 0.95rem;
    }
}

/* 服务展示区域 - 中等屏幕 */
@media (max-width: 992px) {
    .service-content .service-title {
        font-size: 2.2rem;
        margin-bottom: 28px;
    }
    
    .service-btn {
        padding: 11px 28px;
        font-size: 0.98rem;
    }
}

/* 服务展示区域 - 小屏幕 */
@media (max-width: 768px) {
    /* 英雄区域 */
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
    
    /* 导航栏 */
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
        z-index: 100000;
        cursor: pointer;
    }
    
    /* 热点资讯 */
    .hot-news {
        height: auto;
    }
    
    .news-link {
        /* 移除固定高度，使用aspect-ratio保持比例 */
    }
    
    /* 合作伙伴 */
    .partners {
        padding: 60px 0;
    }
    
    .partner-logo {
        width: 120px;
        height: 60px;
        margin: 0 10px;
    }
}

@media (max-width: 576px) {
    /* 服务展示区域 - 小屏幕手机 */
    .service-item {
        height: 40vh;
        min-height: 350px;
    }
    
    .video-carousel video {
        object-fit: cover;
        width: 100%;
        height: 100%;
    }
    
    /* 合作伙伴区域 - 小屏幕手机 */
    .partner-logo {
        width: 100px;
        height: 50px;
        margin: 0 8px;
    }
    
    .partners-track {
        width: auto;
    }
    
    .partners-slider {
        min-height: 250px;
    }
    
    .service-content .service-title {
        font-size: 1.5rem;
    }
    
    .service-btn {
        padding: 8px 20px;
        font-size: 0.85rem;
    }
    
    /* 英雄区域 - 小屏幕手机 */
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 0.9rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    /* 热点资讯 - 小屏幕手机 */
    .news-link {
        /* 移除固定高度，使用aspect-ratio保持比例 */
    }
    
    /* 合作伙伴 - 小屏幕手机 */
    .partner-logo {
        width: 100px;
        height: 50px;
        margin: 0 8px;
    }
}

/* 平台优势区域 */
.advantages {
    padding: 80px 0;
}

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

.advantages-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.advantages-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

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

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.advantage-item {
    display: flex;
    gap: 20px;
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.5s ease;
}

.advantage-item.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.advantage-text h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #333;
}

.advantage-text p {
    color: #666;
    line-height: 1.6;
}