/* 钉钉进步体字体引用 */
@font-face {
    font-family: 'DingTalkJinBuTi';
    src: url('/web/WWW/ziti/DingTalk-JinBuTi.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

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

body {
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 头部样式 */
.header {
    background: rgba(255, 255, 255, 0.6);
    border-bottom: 1px solid rgba(233, 236, 239, 0.5);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1002;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 51px;
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: nowrap;
}

.header-content .left-container {
    padding: 0;
    flex: 1;
    min-width: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 700;
    color: #007bff;
}

.login-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 700;
    color: #007bff;
    text-decoration: none;
}

.login-logo img {
    max-height: 30px;
    width: auto;
    display: block;
}

.left-container {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
    min-width: 0;
}

.nav {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-left: 0;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.nav-item {
    position: relative;
}

.nav a {
    color: #333;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s ease;
    white-space: nowrap;
    display: block;
    padding: 15px 0;
    cursor: pointer;
}

.nav a:hover {
    color: #007bff;
}

.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.arrow {
    width: 8px;
    height: 8px;
    transition: transform 0.3s ease;
    display: inline-block;
    vertical-align: middle;
    margin-top: -1px;
    transform: rotate(0deg); /* 默认指向右（关闭状态） */
}

.dropdown.active .arrow {
    transform: rotate(270deg); /* 打开时指向上 */
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    min-width: 160px;
    padding: 8px 0;
    margin-top: 4px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 8px 16px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.dropdown-menu a:hover {
    background-color: #f8f9fa;
    color: #007bff;
}

/* 全屏菜单样式 */
.fullscreen-menu {
    position: fixed;
    top: 51px;
    left: 0;
    right: 0;
    bottom: 250px;
    width: 100%;
    height: calc(100vh - 301px);
    border: none;
    border-radius: 0;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0);
    transition: all 0.3s ease;
    margin-top: -1px;
}

.menu-header {
    padding: 15px 30px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    position: relative;
}

.menu-header .search-box {
    flex: 1;
    max-width: 300px;
}

.menu-header .search-box input {
    width: 100%;
    padding: 10px 35px 10px 15px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    font-size: 14px;
    background-image: url('/web/WWW/icon/ss.png');
    background-repeat: no-repeat;
    background-position: calc(100% - 12px) center;
    background-size: 16px 16px;
}

.product-tabs {
    display: flex;
    gap: 15px;
}

.tab-item {
    padding: 8px 16px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.tab-item.active {
    background: #007bff;
    color: #fff;
}

.close-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
}

.close-btn:hover {
    background: #f8f9fa;
    color: #333;
}

.close-btn:active {
    animation: closeAnimation 0.3s ease-in-out;
}

@keyframes closeAnimation {
    0% {
        transform: translateY(-50%) rotate(0deg) scale(1);
    }
    50% {
        transform: translateY(-50%) rotate(90deg) scale(1.2);
        color: #dc3545;
    }
    100% {
        transform: translateY(-50%) rotate(180deg) scale(1);
        color: #666;
    }
}

.menu-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    padding: 15px 30px;
}

.menu-left {
    width: 200px;
    padding: 20px;
    border-right: 1px solid #e9ecef;
    overflow-y: auto;
    background: url('/web/WWW/img/bg.png') no-repeat center center;
    background-size: cover;
}

.menu-left h4 {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin: 0 0 8px 0;
}

.menu-left p {
    font-size: 12px;
    color: #666;
    margin: 0 0 16px 0;
    line-height: 1.4;
}

.menu-left h5 {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin: 10px 0 0 0;
    transition: color 0.2s ease;
}

.menu-left h5:hover {
    color: #007bff;
    cursor: pointer;
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-item {
    padding: 15px 20px;
    font-size: 14px;
    color: #333;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.category-item:hover {
    background: #e9ecef;
    color: #007bff;
}

.category-item.active {
    background: #ffffff;
    color: #007bff;
    border-left-color: #007bff;
    font-weight: 500;
}

.menu-right {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.fullscreen-menu .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.fullscreen-menu .solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.solution-item {
    padding: 20px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    background: url('/web/WWW/img/dasf.png') no-repeat center center;
    background-size: cover;
    transition: all 0.3s ease;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.solution-item h4,
.solution-item p {
    color: #333;
}

.solution-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.solution-item p {
    font-size: 12px;
    color: #666;
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.solution-item:hover {
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.1);
    border-color: #007bff;
    transform: translateY(-2px);
}

.product-item {
    padding: 20px;
    border: 1px solid #e9ecef;
    border-radius: 0;
    background: #ffffff;
    transition: all 0.3s ease;
    position: relative;
    min-height: 90px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.product-item:hover {
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.2);
    border-color: #007bff;
    transform: translateY(-3px);
}

.product-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    color: #333;
    margin-top: 25px;
    line-height: 1.4;
    transition: all 0.3s ease;
}

.product-item:hover h4 {
    color: #007bff;
    transform: translateX(5px);
}

/* 调整徽章位置 */
.badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    color: #fff;
    background: #ff4757;
    box-shadow: 0 2px 4px rgba(255, 71, 87, 0.3);
    transition: all 0.3s ease;
}

.product-item:hover .badge {
    transform: scale(1.05);
    box-shadow: 0 3px 6px rgba(255, 71, 87, 0.4);
}

.badge.hot {
    background: #ff4757;
}

.badge.new {
    background: #ff4757;
}

.badge.cloud {
    background: #ff4757;
    left: auto;
    right: 10px;
}

.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    padding-right: 0;
}

.header-content .btn-primary {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 20px;
    white-space: nowrap;
    position: static;
}

.header-content .btn-primary:hover {
    background: #0056b3;
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
}

.btn-primary {
    background: #007bff;
    color: #fff;
    padding: 0 20px;
    font-size: 16px;
    font-weight: 700;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 8px 32px 8px 12px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    font-size: 14px;
    width: 180px;
    outline: none;
    transition: all 0.2s ease;
    background-image: url('/web/WWW/icon/ss.png');
    background-repeat: no-repeat;
    background-position: calc(100% - 10px) center;
    background-size: 16px 16px;
}

.search-box input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.header-link {
    color: #000;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
    position: relative;
    margin: 0 10px;
    cursor: pointer;
}

.header-link::after {
    content: '|';
    position: absolute;
    right: -12px;
    top: 0;
    color: #e9ecef;
}

/* 移除最后两个链接的分割线 */
.header-actions .header-link:nth-last-child(1)::after,
.header-actions .header-link:nth-last-child(2)::after {
    display: none;
}

.header-link:hover {
    color: #007bff;
}

.btn {
    border-radius: 0;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn:not(.header-content .btn-primary) {
    padding: 8px 16px;
}

.btn-primary {
    background: #007bff;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

/* 轮播图 */
.hero {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    color: #333;
    padding: 0;
}

/* 轮播图覆盖层，用于调整亮度 */
.carousel-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.02);
    z-index: 1;
    pointer-events: none;
}

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

.carousel-items-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

/* 轮播图加载状态 */
.carousel-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.9);
    z-index: 10;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.loading-dot {
    width: 12px;
    height: 12px;
    background: #007bff;
    border-radius: 50%;
    animation: loadingBounce 1.2s ease-in-out infinite;
}

.loading-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dot:nth-child(3) {
    animation-delay: 0.4s;
}

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

/* 加载动画 */
@keyframes loadingBounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-15px);
        opacity: 1;
    }
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    backface-visibility: hidden;
    will-change: transform, opacity;
}

/* 轮播图入场动画 */
.carousel-item.enter {
    animation: carouselEnter 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes carouselEnter {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    60% {
        opacity: 0.95;
        transform: translateY(-2px) scale(1.01);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 轮播图退场动画 */
.carousel-item.exit {
    animation: carouselExit 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes carouselExit {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-20px) scale(0.98);
    }
}

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

.carousel-item.prev {
    transform: translateX(-100%);
    z-index: 0;
}

.carousel-item.next {
    transform: translateX(100%);
    z-index: 0;
}

.hero-bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.main {
    margin-top: 51px;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    backface-visibility: hidden;
    will-change: transform;
    image-rendering: optimizeQuality;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.hero-content {
    position: absolute;
    z-index: 2;
    width: 100%;
    max-width: 100%;
    padding: 0 40px;
    display: block;
    margin-bottom: 0;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.hero-text {
    max-width: 650px;
    color: #333;
    text-align: left;
    margin: 0 0 0 80px;
    padding: 20px 0;
}

.hero-tag {
    font-size: 14px;
    color: #007bff;
    margin-bottom: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    opacity: 0;
    transform: translateY(10px);
    animation: heroTagEnter 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-badge {
    background: #ff4757;
    color: white;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    display: inline-block;
    line-height: 1.4;
    animation: badgeBreath 2s ease-in-out infinite;
    box-shadow: 0 0 5px rgba(255, 71, 87, 0.5);
}

/* 徽章呼吸灯动画 */
@keyframes badgeBreath {
    0% {
        transform: scale(1);
        opacity: 1;
        box-shadow: 0 0 5px rgba(255, 71, 87, 0.5);
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
        box-shadow: 0 0 15px rgba(255, 71, 87, 0.8);
    }
    100% {
        transform: scale(1);
        opacity: 1;
        box-shadow: 0 0 5px rgba(255, 71, 87, 0.5);
    }
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    color: #222;
    letter-spacing: -0.5px;
    opacity: 0;
    transform: translateY(15px);
    animation: heroTitleEnter 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero-desc {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
    font-weight: 400;
    opacity: 0;
    transform: translateY(15px);
    animation: heroDescEnter 0.8s ease forwards;
    animation-delay: 0.6s;
}

/* 入场动画 */
@keyframes heroTagEnter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroTitleEnter {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroDescEnter {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroBtnEnter {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-btn {
    background: #007bff;
    color: white;
    opacity: 0;
    transform: translateY(15px);
    animation: heroBtnEnter 0.8s ease forwards;
    animation-delay: 0.8s;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    margin-bottom: 25px;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(15px) scale(0.95);
    animation: heroBtnEnter 0.8s ease forwards;
    animation-delay: 0.8s;
}

.carousel-progress-container {
    opacity: 0;
    transform: translateY(20px);
    animation: heroProgressEnter 0.8s ease forwards;
    animation-delay: 1s;
}

/* 子元素入场动画 */
@keyframes heroTagEnter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroTitleEnter {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroDescEnter {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroBtnEnter {
    from {
        opacity: 0;
        transform: translateY(15px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes heroProgressEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.4),
        rgba(255, 255, 255, 0.6),
        rgba(255, 255, 255, 0.4),
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shine 3s infinite ease-in-out;
}

@keyframes shine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.hero-btn:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* 分段式轮播图进度条 */
.carousel-progress-container {
    display: flex;
    flex-direction: row;
    gap: 12px;
    margin-top: 20px;
    width: 200px;
}

.carousel-progress-item {
    flex: 1;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.carousel-progress-item.active {
    opacity: 1;
}

.carousel-progress {
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.carousel-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #007bff, #0056b3);
    border-radius: 2px;
    transition: width 0.1s linear;
    box-shadow: 0 1px 2px rgba(0, 123, 255, 0.3);
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control:hover {
    transform: translateY(-50%) scale(1.1);
}

.carousel-control.prev {
    left: 30px;
}

.carousel-control.next {
    right: 30px;
}

.carousel-control.prev::before,
.carousel-control.next::before {
    content: '';
    width: 20px;
    height: 20px;
    background-image: url('/web/WWW/icon/dk.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    display: block;
}

.carousel-control.next::before {
    transform: rotate(180deg);
}




/* 功能卡片区域 */
.service-cards {
    padding: 30px 0 40px;
    background: transparent;
    position: relative;
    margin-top: -100px;
    z-index: 10;
}

.container {
    width: 100%;
    max-width: 1200px;
    padding: 0 15px;
    margin: 0 auto;
    box-sizing: border-box;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

/* 手机端优化 */
@media (max-width: 768px) {
    .service-cards {
        padding: 0;
        margin: 0;
    }
    
    .container {
        padding: 0;
        max-width: 100%;
        margin: 0;
    }
    
    .cards-container {
        gap: 6px;
        width: 100%;
        max-width: none;
        padding: 0;
        margin: 0;
    }
    
    .service-card {
        flex: 1 1 calc(50% - 3px);
        min-width: calc(50% - 3px);
        max-width: calc(50% - 3px);
    }
}

/* 服务卡片基础样式 */
.service-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    text-align: left;
    gap: 15px;
    opacity: 0;
    animation: 0.8s ease forwards;
    transition: all 0.3s ease;
}

/* 大屏幕显示横排不换行 */
@media (min-width: 992px) {
    .service-card {
        flex: 1 1 auto;
        min-width: 220px;
        max-width: none;
        padding: 24px;
        align-items: flex-start;
        text-align: left;
        gap: 16px;
    }
    
    .cards-container {
        gap: 15px;
        padding: 0;
        flex-wrap: nowrap;
        justify-content: center;
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .card-icon img {
        max-width: 100%;
        max-height: 60px;
        object-fit: contain;
    }
    
    .card-title {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 6px;
        line-height: 1.2;
        color: #333;
    }
    
    .card-subtitle {
        font-size: 14px;
        line-height: 1.4;
        color: #666;
    }
}

/* 中等屏幕显示2列 */
@media (max-width: 991px) {
    .service-card {
        flex: 1 1 calc(50% - 5px);
        min-width: calc(50% - 5px);
        max-width: calc(50% - 5px);
        align-items: flex-start;
        text-align: left;
    }
    
    .cards-container {
        gap: 10px;
        padding: 0;
    }
}

/* 小屏幕显示2列（按照参考图片布局） */
@media (max-width: 768px) {
    /* 隐藏轮播控制按钮 */
    .carousel-control {
        display: none;
    }
    
    .service-cards {
        padding: 0;
        margin: 0;
    }
    
    .service-card {
        flex: 1 1 calc(50% - 3px);
        min-width: calc(50% - 3px);
        max-width: calc(50% - 3px);
        padding: 8px 6px;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 5px;
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(220, 220, 220, 0.5);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
        cursor: pointer;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .service-card:active {
        background: rgba(245, 245, 245, 0.95);
        transform: scale(0.98);
        transition: all 0.1s ease;
    }
    
    .cards-container {
        gap: 3px;
        padding: 0;
        width: 100%;
        max-width: none;
        box-sizing: border-box;
        margin: 0;
    }
    
    .card-icon {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .card-icon img {
        max-width: 100%;
        max-height: 16px;
        object-fit: contain;
    }
    
    .card-content {
        flex: 1;
        min-width: 0;
        overflow: visible;
        padding-top: 8px;
    }
    
    .card-title {
        font-size: 10px;
        font-weight: 600;
        margin-bottom: 2px;
        line-height: 1.2;
        color: #333;
        white-space: nowrap;
        overflow: visible;
    }
    
    .card-subtitle {
        font-size: 8px;
        line-height: 1.2;
        color: #666;
        white-space: nowrap;
        overflow: visible;
        display: none;
    }
    
    /* h2 标签手机端优化 */
    h2 {
        font-size: 18px !important;
        margin-bottom: 12px !important;
    }
    
    /* 图片手机端优化 */
    img {
        max-width: 100% !important;
        height: auto !important;
    }
}

/* 超小屏幕显示2列（按照参考图片布局） */
@media (max-width: 480px) {
    .service-cards {
        padding: 0;
        margin: 0;
    }
    
    .service-card {
        flex: 1 1 calc(50% - 2px);
        min-width: calc(50% - 2px);
        max-width: calc(50% - 2px);
        padding: 6px 4px;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 4px;
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid rgba(220, 220, 220, 0.3);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        cursor: pointer;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .service-card:active {
        background: rgba(245, 245, 245, 0.98);
        transform: scale(0.98);
        transition: all 0.1s ease;
    }
    
    .cards-container {
        gap: 2px;
        padding: 0;
        width: 100%;
        max-width: none;
        box-sizing: border-box;
        margin: 0;
    }
    
    .card-icon {
        width: 14px;
        height: 14px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .card-icon img {
        max-width: 100%;
        max-height: 14px;
        object-fit: contain;
    }
    
    .card-content {
        flex: 1;
        min-width: 0;
        overflow: visible;
        padding-top: 8px;
    }
    
    .card-title {
        font-size: 9px;
        font-weight: 600;
        margin-bottom: 1px;
        line-height: 1.2;
        color: #333;
        white-space: nowrap;
        overflow: visible;
    }
    
    .card-subtitle {
        font-size: 7px;
        line-height: 1.2;
        color: #666;
        white-space: nowrap;
        overflow: visible;
        display: none;
    }
    
    /* h2 标签手机端优化 */
    h2 {
        font-size: 17px !important;
        margin-bottom: 11px !important;
    }
    
    /* 图片手机端优化 */
    img {
        max-width: 100% !important;
        height: auto !important;
    }
}

/* 极小屏幕优化 */
@media (max-width: 360px) {
    .service-cards {
        padding: 0;
        margin: 0;
    }
    
    .service-card {
        flex: 1 1 calc(50% - 2px);
        min-width: calc(50% - 2px);
        max-width: calc(50% - 2px);
        padding: 5px 3px;
        gap: 3px;
        box-sizing: border-box;
        overflow: hidden;
        align-items: center;
    }
    
    .cards-container {
        gap: 2px;
        padding: 0;
        width: 100%;
        max-width: none;
        box-sizing: border-box;
        margin: 0;
    }
    
    .card-icon {
        width: 12px;
        height: 12px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .card-icon img {
        max-height: 12px;
    }
    
    .card-content {
        flex: 1;
        min-width: 0;
        overflow: visible;
        padding-top: 8px;
    }
    
    .card-title {
        font-size: 8px;
        font-weight: 600;
        margin-bottom: 1px;
        line-height: 1.2;
        color: #333;
        white-space: nowrap;
        overflow: visible;
    }
    
    .card-subtitle {
        font-size: 6px;
        line-height: 1.2;
        color: #666;
        white-space: nowrap;
        overflow: visible;
        display: none;
    }
    
    /* h2 标签手机端优化 */
    h2 {
        font-size: 16px !important;
        margin-bottom: 10px !important;
    }
    
    /* 图片手机端优化 */
    img {
        max-width: 100% !important;
        height: auto !important;
    }
}



.service-card:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(0, 123, 255, 0.3);
    transform: translateY(-2px);
    transition: all 0.3s ease;
}

/* 为每个服务卡片添加不同的动画效果和延迟 */
.service-card:nth-child(1) {
    transform: translateX(-50px);
    animation-name: fadeInLeft;
    animation-delay: 0.1s;
}

.service-card:nth-child(2) {
    transform: translateX(-50px);
    animation-name: fadeInLeft;
    animation-delay: 0.1s;
}

.service-card:nth-child(3) {
    transform: translateX(50px);
    animation-name: fadeInRight;
    animation-delay: 0.1s;
}

.service-card:nth-child(4) {
    transform: translateX(50px);
    animation-name: fadeInRight;
    animation-delay: 0.1s;
}

/* 从左往右入场动画 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 从右往左入场动画 */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-content {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 4px 0;
    color: #333;
    line-height: 1.2;
    white-space: nowrap;
    overflow: visible;
}

.card-subtitle {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
    margin: 0;
    white-space: nowrap;
    overflow: visible;
}

/* 电脑端放大产品卡片内容 */
@media (min-width: 769px) {
    .card-icon img {
        max-width: 100%;
        max-height: 80px;
        object-fit: contain;
    }
    
    .card-title {
        font-size: 20px;
        margin-bottom: 6px;
    }
    
    .card-subtitle {
        font-size: 14px;
    }
}

/* 移动端保持原尺寸 */
@media (max-width: 768px) {
    .card-icon img {
        max-width: 100%;
        max-height: 60px;
        object-fit: contain;
    }
}

/* 特性区域 */
.features {
    padding: 50px 0;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 14px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.feature-card {
    background: #fff;
    padding: 30px 20px;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

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

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 产品区域 */
.products {
    padding: 50px 0;
    background: #fff;
}

.products-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 8px 20px;
    border: 2px solid transparent;
    background: #f8f9fa;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: #007bff;
    border-color: #007bff;
    color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    padding: 20px;
}

.product-card {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-align: left;
    padding: 15px;
}

.product-card:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(0);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.product-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.product-tag {
    background: #e8f3ff;
    color: #007bff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.product-desc {
    font-size: 13px;
    color: #666;
    margin-bottom: 15px;
}

.product-specs {
    font-size: 13px;
    color: #666;
    margin-bottom: 15px;
}

.spec-item {
    margin-bottom: 6px;
    line-height: 1.4;
}

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

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.product-price {
    display: flex;
    align-items: baseline;
}

.price {
    font-size: 24px;
    font-weight: 700;
    color: #007bff;
    margin-right: 5px;
}

.unit {
    font-size: 12px;
    color: #666;
}

.buy-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.buy-btn:hover {
    background: #0056b3;
}

/* 解决方案区域 */
.cases {
    padding: 60px 0;
    background-image: url('/web/WWW/img/hyjj.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: #fff;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.cases.animate {
    opacity: 1;
    transform: translateY(0);
}

.cases .section-title {
    color: #fff;
}

.cases .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.solutions-tabs {
    display: flex;
    justify-content: center;
    margin: 40px 0;
    overflow-x: auto;
    padding: 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.solutions-tabs::-webkit-scrollbar {
    display: none;
}

.solutions-tabs .tab-btn {
    padding: 12px 24px;
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    border: none;
    border-radius: 0;
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.solutions-tabs .tab-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.solutions-tabs .tab-btn.active {
    background: #007bff;
    color: #fff;
}

.solutions-tabs .tab-btn.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    z-index: -1;
}

.solutions-tabs .tab-btn span {
    display: inline-block;
    margin-right: 8px;
    font-weight: 700;
}

/* 查看更多按钮样式 */
.view-more-btn {
    padding: 12px 28px;
    background-color: transparent;
    color: #007bff;
    border: none;
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 0.8px;
}

.view-more-btn:hover {
    color: #0056b3;
    transform: translateY(-2px);
}

/* 查看更多按钮容器样式 */
.view-more-container {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    margin-bottom: 15px;
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 手机端查看更多按钮容器样式 */
@media (max-width: 768px) {
    .view-more-container {
        margin-top: 15px;
        margin-bottom: 10px;
    }
    
    .view-more-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

.solutions-content {
    position: relative;
    min-height: 400px;
}

.solution-panel {
    display: flex;
    gap: 80px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    max-width: 1000px;
    margin: 0 auto;
}

.solution-panel.active {
    opacity: 1;
    transform: translateY(0);
    position: relative;
}

.solution-left {
    flex: 1;
    min-width: 300px;
    max-width: 450px;
}

.solution-right {
    flex: 1;
    min-width: 300px;
    max-width: 450px;
}

.laptop-mockup {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
}

@keyframes laptopFloat {
    0%, 100% {
        transform: perspective(1000px) rotateY(-10deg) translateY(0);
    }
    50% {
        transform: perspective(1000px) rotateY(-10deg) translateY(-10px);
    }
}

.laptop-mockup img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: perspective(1000px) rotateY(-10deg);
    transition: all 0.3s ease;
    animation: laptopFloat 5s ease-in-out infinite;
}

.laptop-mockup img:hover {
    transform: perspective(1000px) rotateY(-5deg) translateY(-5px);
    animation-play-state: paused;
}

.solution-title {
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.solution-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 3px;
    background: #007bff;
}

.solution-desc {
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.solution-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

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

.solution-stats .stat-value {
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    display: block;
    margin-bottom: 5px;
}

.solution-stats .stat-label {
    font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    color: #ffffff;
    display: block;
}

.btn-primary {
    background: #007bff;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 0;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s ease-in-out infinite;
}

/* 循环放大缩小动画 */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.12);
    }
    100% {
        transform: scale(1);
    }
}

.btn-primary:hover {
    background: #0056b3;
    transform: scale(1.15);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

/* 手机端响应式优化 */
@media (max-width: 768px) {
    .cases {
        padding: 40px 0;
        background-attachment: scroll;
    }
    
    .cases .section-header {
        margin-bottom: 30px;
    }
    
    .cases .section-title {
        font-size: 24px;
        margin-bottom: 10px;
    }
    
    .cases .section-subtitle {
        font-size: 14px;
        padding: 0 20px;
    }
    
    .solutions-tabs {
        margin: 30px 0;
        padding: 15px;
        max-width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 8px;
    }
    
    .solutions-tabs .tab-btn {
        padding: 10px 16px;
        font-size: 12px;
        flex: 1;
        min-width: calc(50% - 5px);
        max-width: calc(50% - 5px);
        text-align: center;
        white-space: normal;
        line-height: 1.3;
    }
    
    .solutions-tabs .tab-btn:nth-child(5) {
        flex: 1;
        min-width: 100%;
        max-width: 100%;
    }
    
    .solutions-tabs .tab-btn span {
        margin-right: 4px;
        display: inline-block;
    }
    
    .solutions-content {
        min-height: auto;
    }
    
    .solution-panel {
        flex-direction: column;
        gap: 15px;
        padding: 0 10px;
        align-items: center;
    }
    
    .solution-left {
        flex: none;
        min-width: 100%;
        max-width: 100%;
        order: 1;
        display: flex;
        justify-content: center;
    }
    
    .solution-right {
        flex: none;
        min-width: 100%;
        max-width: 100%;
        order: 2;
        text-align: center;
    }
    
    .laptop-mockup {
        padding: 10px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 8px;
        max-width: 250px;
        width: 100%;
    }
    
    .laptop-mockup img {
        max-width: 100%;
        width: 100%;
        height: auto;
        animation: none;
        transform: none;
        border-radius: 4px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        object-fit: contain;
    }
    
    .laptop-mockup img:hover {
        transform: none;
    }
    
    .solution-title {
        font-size: 16px;
        margin-bottom: 8px;
        padding-bottom: 4px;
        text-align: center;
        font-weight: 700;
        color: #ffffff;
    }
    
    .solution-title::after {
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
    }
    
    .solution-desc {
        font-size: 11px;
        line-height: 1.4;
        margin-bottom: 10px;
        text-align: center;
        color: rgba(255, 255, 255, 0.8);
        padding: 0 8px;
    }
    
    .solution-stats {
        justify-content: center;
        gap: 10px;
        margin-bottom: 10px;
        flex-wrap: wrap;
    }
    
    .solution-stats .stat-item {
        flex: 1;
        min-width: 70px;
        max-width: 90px;
    }
    
    .solution-stats .stat-value {
        font-size: 16px;
        margin-bottom: 1px;
        color: #ffffff;
        font-weight: 700;
    }
    
    .solution-stats .stat-label {
        font-size: 10px;
        color: rgba(255, 255, 255, 0.9);
    }
    
    .btn-primary {
        display: block;
        margin: 0 auto;
        padding: 8px 16px;
        font-size: 12px;
        width: fit-content;
        border-radius: 4px;
        box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
    }
    
    .btn-primary:hover {
        transform: none;
        box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4);
    }
}

/* 小手机屏幕优化 */
@media (max-width: 480px) {
    .cases {
        padding: 30px 0;
    }
    
    .cases .section-title {
        font-size: 20px;
    }
    
    .cases .section-subtitle {
        font-size: 12px;
    }
    
    .solutions-tabs {
        padding: 10px;
        gap: 8px;
    }
    
    .solutions-tabs .tab-btn {
        padding: 8px 12px;
        font-size: 11px;
        min-width: calc(50% - 4px);
        max-width: calc(50% - 4px);
    }
    
    .solutions-tabs .tab-btn:nth-child(5) {
        min-width: 100%;
        max-width: 100%;
    }
    
    .solutions-tabs .tab-btn span {
        font-size: 10px;
        margin-right: 2px;
    }
    
    .solution-panel {
        gap: 15px;
        padding: 0 10px;
    }
    
    .laptop-mockup {
        padding: 12px;
        max-width: 250px;
    }
    
    .laptop-mockup img {
        max-width: 60%;
        border-radius: 4px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }
    
    .solution-title {
        font-size: 16px;
        margin-bottom: 10px;
        padding-bottom: 5px;
    }
    
    .solution-title::after {
        width: 25px;
        height: 2px;
    }
    
    .solution-desc {
        font-size: 11px;
        line-height: 1.4;
        margin-bottom: 12px;
        padding: 0 8px;
    }
    
    .solution-stats {
        gap: 10px;
        margin-bottom: 12px;
    }
    
    .solution-stats .stat-item {
        min-width: 70px;
        max-width: 90px;
    }
    
    .solution-stats .stat-value {
        font-size: 16px;
        margin-bottom: 1px;
    }
    
    .solution-stats .stat-label {
        font-size: 10px;
    }
    
    .btn-primary {
        padding: 8px 18px;
        font-size: 12px;
        border-radius: 3px;
        box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
    }
    
    .btn-primary:hover {
        box-shadow: 0 3px 10px rgba(0, 123, 255, 0.4);
    }
}

/* 全球节点 */
.nodes {
    padding: 80px 0;
    background: #fff;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 1s ease, transform 1s ease;
}

.nodes.animate {
    opacity: 1;
    transform: scale(1);
}

.global-infrastructure {
    max-width: 1400px;
    margin: 0 auto;
}

.infrastructure-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
    margin: 60px 0;
}

.infrastructure-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.infrastructure-left h3 {
    font-size: 26px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.3;
}

.infrastructure-left p {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 8px;
}

.infrastructure-left .btn-primary {
    align-self: flex-start;
    margin-top: 8px;
    margin-bottom: 16px;
}

.infrastructure-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 16px;
    padding-top: 24px;
    border-top: 1px solid #f0f0f0;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat-item h4 {
    font-size: 14px;
    color: #888;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.infrastructure-stats .stat-value {
    font-size: 38px;
    font-weight: 700;
    color: #333;
    line-height: 1.2;
}

.infrastructure-map {
    position: relative;
    text-align: center;
}

.infrastructure-map {
    position: relative;
}

.infrastructure-map img {
    max-width: 100%;
    height: auto;
}

/* 节点标记样式 - 与参考图片一致 */
.node-marker {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #007bff;
    border: 2px solid white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 123, 255, 0.4);
    transition: all 0.3s ease;
}

.node-marker:hover {
    width: 14px;
    height: 14px;
    background: #0056b3;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.6);
    transform: translate(-50%, -50%) scale(1.2);
}

.node-marker:hover::before {
    background: #007bff;
    color: white;
    padding: 4px 10px;
    font-size: 12px;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4);
}

.node-marker:active {
    background: #004085;
    transform: translate(-50%, -50%) scale(0.9);
}

.node-marker::before {
    content: attr(data-name);
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    color: #333;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 1;
    pointer-events: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    z-index: 11;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(0, 123, 255, 0.3) 0%, rgba(0, 123, 255, 0) 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    z-index: 9;
    animation: haloPulse 2s ease-in-out infinite;
}

/* 光环脉冲动画 */
@keyframes haloPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.6;
    }
}

/* 参考图片精确位置设置 */
.node-marker:nth-child(2) { /* 圣保罗 */
    top: 53%;
    left: 87%;
}

.node-marker:nth-child(3) { /* 美国 */
    top: 22%;
    left: 75%;
}

.node-marker:nth-child(4) { /* 爱尔兰 */
    top: 20%;
    left: 7%;
}

.node-marker:nth-child(5) { /* 尼日利亚 */
    top: 45%;
    left: 12%;
}

.node-marker:nth-child(6) { /* 南非 */
    top: 65%;
    left: 17%;
}

.node-marker:nth-child(7) { /* 埃及 */
    top: 33%;
    left: 17%;
}

.node-marker:nth-child(8) { /* 土耳其 */
    top: 25%;
    left: 17%;
}

.node-marker:nth-child(9) { /* 沙特 */
    top: 38%;
    left: 22%;
}

.node-marker:nth-child(10) { /* 贵阳 */
    top: 30%;
    left: 38%;
}

.certifications {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    padding: 30px 60px;
    background: #f8fafc;
    border-radius: 12px;
    flex-wrap: wrap;
    max-width: 100%;
    box-sizing: border-box;
}

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 10px;
}

.cert-item img {
    width: 70px;
    height: 70px;
    object-fit: contain;
}

.cert-item p {
    font-size: 14px;
    color: #666;
    font-weight: 500;
    text-align: center;
    margin: 0;
    white-space: nowrap;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .certifications {
        gap: 50px;
        padding: 40px 40px;
    }
    
    .cert-item img {
        width: 65px;
        height: 65px;
    }
}

@media (max-width: 768px) {
    .certifications {
        gap: 40px;
        padding: 30px 20px;
    }
    
    .cert-item img {
        width: 60px;
        height: 60px;
    }
    
    .cert-item p {
        font-size: 13px;
    }
}

/* 手机端响应式优化 */
@media (max-width: 768px) {
    .nodes {
        padding: 40px 0;
    }
    
    .nodes .section-header {
        display: none;
    }
    
    .why-us {
        display: none;
    }
    
    .infrastructure-content {
        grid-template-columns: 1fr;
        gap: 30px;
        margin: 40px 0;
        padding: 0 10px;
    }
    
    .infrastructure-left {
        gap: 16px;
    }
    
    .infrastructure-left h3 {
        font-size: 20px;
        margin-bottom: 4px;
        text-align: center;
    }
    
    .infrastructure-left p {
        font-size: 14px;
        line-height: 1.6;
        text-align: center;
        padding: 0 10px;
    }
    
    .infrastructure-left .btn-primary {
        display: none;
    }
    
    .infrastructure-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding-top: 20px;
    }
    
    .infrastructure-stats .stat-value {
        font-size: 24px;
        text-align: center;
    }
    
    .stat-item h4 {
        font-size: 12px;
        text-align: center;
    }
    
    .infrastructure-map {
        max-width: 95%;
        margin: 0 auto;
    }
    
    .infrastructure-map img {
        width: 100%;
        height: auto;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    .node-marker {
        width: 8px;
        height: 8px;
    }
    
    .node-marker::before {
        font-size: 10px;
        padding: 2px 6px;
        top: -25px;
    }
    
    .certifications {
        gap: 30px;
        padding: 20px;
        margin: 0 20px;
    }
    
    .cert-item img {
        width: 50px;
        height: 50px;
    }
    
    .cert-item p {
        font-size: 12px;
    }
}

/* 小手机屏幕优化 */
@media (max-width: 480px) {
    /* 英雄区域高度调整 */
    .hero {
        height: 240px;
    }
    
    /* 英雄区域进一步优化 */
    .hero-text {
        padding: 10px;
    }
    
    .hero-tag {
        font-size: 10px;
        margin-bottom: 6px;
        gap: 4px;
    }
    
    .hero-badge {
        padding: 1px 4px;
        font-size: 8px;
    }
    
    .hero-text h1 {
        font-size: 20px;
        margin-bottom: 10px;
    }
    
    .hero-desc {
        font-size: 10px;
        margin-bottom: 12px;
    }
    
    .hero-btn {
        padding: 6px 12px;
        font-size: 10px;
        margin-bottom: 10px;
    }
    
    .carousel-progress-container {
        margin: 10px 0 0;
        width: 100px;
        gap: 4px;
    }
    
    .nodes {
        padding: 30px 0;
    }
    
    .nodes .section-title {
        font-size: 20px;
    }
    
    .nodes .section-subtitle {
        font-size: 12px;
    }
    
    .infrastructure-content {
        gap: 20px;
        padding: 0 10px;
    }
    
    .infrastructure-left h3 {
        font-size: 18px;
    }
    
    .infrastructure-left p {
        font-size: 13px;
    }
    
    .infrastructure-stats {
        gap: 15px;
    }
    
    .infrastructure-stats .stat-value {
        font-size: 20px;
    }
    
    .stat-item h4 {
        font-size: 11px;
    }
    
    .infrastructure-map {
        max-width: 95%;
    }
    
    .node-marker {
        width: 6px;
        height: 6px;
    }
    
    .node-marker::before {
        font-size: 9px;
        padding: 2px 4px;
        top: -20px;
    }
    
    .certifications {
        gap: 20px;
        padding: 15px;
        margin: 0 15px;
    }
    
    .cert-item img {
        width: 40px;
        height: 40px;
    }
    
    .cert-item p {
        font-size: 11px;
    }
}

/* 为什么选择我们 */
.why-us {
    padding: 80px 0;
    background: #f0f7ff;
    color: #333;
    opacity: 0;
    transform: translateY(40px) rotateX(5deg);
    will-change: transform, opacity;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.why-us.animate {
    opacity: 1;
    transform: translateY(0) rotateX(0);
}

.why-us .section-title {
    color: #333;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    text-align: center;
}

.why-us .section-subtitle {
    color: #666;
    margin-bottom: 40px;
    text-align: center;
    font-size: 16px;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.why-us-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 32px;
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 0;
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.why-us-item .content {
    order: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.why-us-item .icon {
    order: 2;
}

.why-us-item:hover {
    background: #f8f9fa;
    border-color: #007bff;
    box-shadow: 0 8px 24px rgba(0, 123, 255, 0.15);
    transform: translateY(-4px);
}

.why-us-item:active {
    background: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.1);
}

.why-us-item .icon {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-us-item .icon img {
    max-width: 80px;
    max-height: 80px;
}

.why-us-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    color: #333;
}

.why-us-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
    font-size: 14px;
    flex: 1;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0;
}

.feature-tags .tag {
    font-size: 12px;
    color: #333;
    background: #ffffff;
    padding: 6px 16px;
    border-radius: 0;
    display: inline-block;
    border: 1px solid #e9ecef;
    font-weight: 500;
    box-shadow: none;
    transition: none;
}

.feature-tags .tag:hover {
    background: #ffffff;
    color: #333;
    border-color: #e9ecef;
    box-shadow: none;
}

/* 视频部分样式 */
.video-section {
    position: relative;
    left: 0;
    right: 0;
    margin: 0 0 40px;
    width: 100%;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.video-section.animate {
    opacity: 1;
    transform: translateY(0);
}

.video-background {
    position: relative;
    width: 100%;
    height: 140px;
    overflow: hidden;
}

.bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.video-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(30, 64, 175, 0.3);
    color: white;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 1s ease, transform 1s ease;
}

.video-section.animate .video-content {
    opacity: 1;
    transform: scale(1);
}

/* 响应式调整覆盖层透明度 */
@media (min-width: 768px) {
    .video-content {
        background: rgba(30, 64, 175, 0.35);
    }
}

@media (min-width: 1200px) {
    .video-content {
        background: rgba(30, 64, 175, 0.4);
    }
}

.video-content h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    max-width: 800px;
}

.join-btn {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 12px 32px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.join-btn:hover {
    background: white;
    color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* 页脚 */
.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 60px 0 30px;
}

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

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #007bff;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    line-height: 2;
    font-size: 14px;
}

.footer-section a:hover {
    color: #007bff;
}

.footer-section ul {
    list-style: none;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* 合作伙伴样式 */
.partners {
    padding: 60px 0;
    background: #f8fafc;
    opacity: 0;
    transform: translateY(30px) rotateY(-5deg);
    will-change: transform, opacity;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.partners.animate {
    opacity: 1;
    transform: translateY(0) rotateY(0);
}

.partners .section-title {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.partners .section-subtitle {
    font-size: 14px;
    color: #666;
    margin-bottom: 40px;
}

.partners-wrapper {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.partners-scroll-row {
    overflow: hidden;
    position: relative;
    padding: 10px 0;
}

.partners-scroll-container {
    display: flex;
    gap: 30px;
    animation: slideLeft 30s linear infinite;
}

/* 第二排反向滑动 */
.partners-scroll-row:nth-child(2) .partners-scroll-container {
    animation: slideRight 30s linear infinite;
}

/* 定义左右滑动动画 */
@keyframes slideLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

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

.partner-item {
    flex-shrink: 0;
    width: 150px;
    height: 60px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 英雄区域高度调整 */
    .hero {
        height: 280px;
    }
    
    /* 视频背景优化 */
    .hero-bg-image {
        object-fit: cover;
        min-height: 100%;
        min-width: 100%;
        transform: translateZ(0);
        backface-visibility: hidden;
    }
    
    /* 视频元素专项优化 */
    video.hero-bg-image {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
    }
    
    /* 英雄内容布局调整 */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: left;
        padding: 0 15px;
    }
    
    .hero-text {
        text-align: left;
        margin: 0;
        padding: 12px;
        max-width: 100%;
    }
    
    .hero-tag {
        font-size: 12px;
        margin-bottom: 8px;
        gap: 6px;
        justify-content: flex-start;
    }
    
    .hero-badge {
        padding: 2px 6px;
        font-size: 9px;
    }
    
    .hero-text h1 {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .hero-desc {
        font-size: 12px;
        margin-bottom: 15px;
    }
    
    .hero-btn {
        padding: 8px 16px;
        font-size: 12px;
        margin-bottom: 12px;
    }
    
    .carousel-progress-container {
        margin: 12px 0 0;
        width: 120px;
        gap: 6px;
    }
    
    .carousel-progress {
        height: 2px;
    }
    
    .carousel-progress-bar {
        height: 100%;
    }
    
    .nav {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    /* 合作伙伴响应式 */
    .partners {
        padding: 40px 0;
    }
    
    .partners .section-title {
        font-size: 20px;
        margin-bottom: 8px;
        text-align: center;
    }
    
    .partners .section-subtitle {
        font-size: 12px;
        margin-bottom: 30px;
        padding: 0 20px;
        text-align: center;
    }
    
    .partner-item {
        width: 100px;
        height: 50px;
        padding: 8px;
    }
    
    .partners-scroll-container {
        gap: 12px;
        animation: slideLeft 25s linear infinite;
    }
    
    .partners-scroll-row:nth-child(2) .partners-scroll-container {
        animation: slideRight 25s linear infinite;
    }
    
    .partners-wrapper {
        gap: 10px;
    }
    
    .partners-scroll-row {
        padding: 8px 0;
    }
    
    /* 视频内容响应式优化 */
    .video-background {
        height: 100px;
    }
    
    .video-content {
        padding: 0 15px;
        background: rgba(30, 64, 175, 0.4);
    }
    
    .video-content h2 {
        font-size: 16px;
        margin-bottom: 12px;
        max-width: 100%;
    }
    
    .join-btn {
        padding: 8px 20px;
        font-size: 12px;
        border-width: 1px;
    }
    

}

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

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

/* 图标字体 */
.icon {
    font-style: normal;
}

/* 页脚样式 */
.footer {
    background-color: #ffffff;
    border-top: 1px solid #eaeaea;
    padding: 30px 0;
    opacity: 0;
    transform: translateY(30px) rotateX(10deg);
    transition: opacity 1s ease, transform 1s ease;
}

.footer.animate {
    opacity: 1;
    transform: translateY(0) rotateX(0);
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 服务保障区域 */
.service-guarantee {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #eaeaea;
    margin-bottom: 25px;
    width: 100%;
    margin-top: -5px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.guarantee-icon {
    width: 40px;
    height: 40px;
}

.guarantee-content h3 {
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 4px;
        color: #333;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .guarantee-content p {
        font-size: 14px;
        color: #666;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

/* 导航区域 */
.footer-nav {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    width: 100%;
}

.nav-column {
    flex: 1;
    margin: 0 15px;
}

.nav-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

.nav-column ul {
    list-style: none;
}

.nav-column .contact-info {
    display: flex;
    flex-direction: column;
}

.nav-column ul li {
    margin-bottom: 10px;
}

.nav-column ul li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.nav-column ul li a:hover {
    color: #007bff;
}

/* 联系我们区域 */
.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-info .phone {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.contact-info .email {
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
}

.qrcode {
    width: 100px;
    height: 100px;
    background-color: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 版权信息区域 */
.copyright {
    text-align: center;
    font-size: 12px;
    color: #999;
    padding-top: 20px;
    border-top: 1px solid #eaeaea;
    width: 100%;
    padding: 20px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .footer-nav {
        flex-direction: column;
        gap: 20px;
    }
    
    .service-guarantee {
        flex-wrap: nowrap;
        gap: 6px;
        overflow-x: auto;
        padding-bottom: 6px;
        margin-top: -8px !important;
        padding-top: 10px !important;
        padding-bottom: 10px !important;
    }
    
    .guarantee-item {
        flex: 1;
        min-width: 65px;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 3px;
    }
    
    .guarantee-icon {
        width: 18px;
        height: 18px;
    }
    
    .guarantee-content h3 {
        font-size: 10px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        font-weight: 500;
    }
    
    .guarantee-content p {
        display: none;
    }
    
    /* 隐藏滚动条但保留功能 */
    .service-guarantee::-webkit-scrollbar {
        display: none;
    }
    
    .service-guarantee {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
    
    /* 友情链接区域响应式调整 */
    .footer-link {
        margin: 15px 0 !important;
        padding: 0 15px;
        font-size: 11px !important;
    }
    
    .footer-link span {
        display: block;
        margin-bottom: 8px;
        font-weight: 500;
        color: #666;
    }
    
    .footer-link a {
        display: inline-block;
        margin-right: 12px;
        margin-bottom: 8px;
        color: #999 !important;
        text-decoration: none !important;
        font-size: 10px;
        transition: color 0.3s ease;
    }
    
    .footer-link a:hover {
        color: #007bff !important;
    }
    
    /* 版权信息区域响应式调整 */
    .copyright {
        padding: 15px 15px;
        border-top: 1px solid #f0f0f0;
        margin-top: 10px;
    }
    
    .copyright p {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 6px !important;
        font-size: 10px !important;
        text-align: left !important;
        flex-wrap: nowrap !important;
        line-height: 1.4;
        font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important;
    }
    
    .copyright span {
        white-space: nowrap;
        color: #999;
    }
    
    .copyright a {
        color: #666 !important;
        text-decoration: none !important;
        transition: color 0.3s ease;
    }
    
    .copyright a:hover {
        color: #007bff !important;
    }
    
    /* 搜索框和图片响应式调整 */
    input[type="text"][placeholder="云服务器"] {
        display: none;
    }
    
    /* 隐藏手机端不需要的元素 */
    .mobile-logo {
        display: none;
    }
    
    /* 调整关闭按钮位置到右边 */
    .mobile-nav-close {
        position: absolute;
        top: 15px;
        right: 15px;
        z-index: 1000;
        background: #f5f5f5;
        border: none;
        width: 30px;
        height: 30px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }
    
    .mobile-nav-close:hover {
        background: #e0e0e0;
    }
    
    /* 优化手机端导航菜单 */
    .mobile-nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background: #ffffff;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
        overflow-y: auto;
    }
    
    .mobile-nav-header {
        padding: 20px 15px;
        border-bottom: 1px solid #f0f0f0;
        position: relative;
    }
    
    .mobile-nav-content {
        padding: 20px 15px;
    }
    
    .mobile-search-box {
        margin-bottom: 25px;
    }
    
    .mobile-nav-list {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    
    .mobile-nav-item {
        margin-bottom: 15px;
    }
    
    .mobile-nav-link {
        display: block;
        padding: 12px 15px;
        color: #333;
        text-decoration: none;
        border-radius: 8px;
        transition: all 0.3s ease;
        font-size: 15px;
        font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    }
    
    /* 添加下拉菜单控制图标 */
    .mobile-dropdown-toggle {
        position: relative;
        padding-right: 30px;
    }
    
    .mobile-dropdown-toggle::after {
        content: '';
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        width: 16px;
        height: 16px;
        background-image: url('/web/WWW/icon/dk.png');
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
        transition: transform 0.3s ease;
    }
    
    /* 打开状态的图标旋转 */
    .mobile-dropdown-toggle.active::after {
        transform: translateY(-50%) rotate(90deg);
    }
    
    /* 隐藏手机端的箭头元素 */
    .mobile-dropdown-toggle .arrow {
        display: none;
    }
    
    .mobile-nav-link:hover {
        background: #f5f5f5;
        color: #007bff;
    }
    
    .mobile-dropdown-menu {
        margin-top: 10px;
        margin-left: 15px;
        border-left: 2px solid #f0f0f0;
        padding-left: 10px;
    }
    
    .mobile-dropdown-menu ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    
    .mobile-dropdown-menu li {
        margin-bottom: 8px;
    }
    
    .mobile-dropdown-menu a {
        display: block;
        padding: 8px 10px;
        color: #666;
        text-decoration: none;
        font-size: 13px;
        transition: all 0.3s ease;
        border-radius: 4px;
    }
    
    .mobile-dropdown-menu a:hover {
        background: #f5f5f5;
        color: #007bff;
    }
    
    .mobile-nav-actions {
        margin-top: 30px;
        display: flex;
        gap: 15px;
    }
    
    .mobile-login-btn,
    .mobile-regist-btn {
        flex: 1;
        padding: 12px;
        text-align: center;
        text-decoration: none;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 500;
        transition: all 0.3s ease;
        font-family: 'DingTalkJinBuTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    }
    
    .mobile-login-btn {
        background: #f5f5f5;
        color: #333;
    }
    
    .mobile-regist-btn {
        background: #007bff;
        color: #ffffff;
    }
    
    .mobile-login-btn:hover {
        background: #e0e0e0;
    }
    
    .mobile-regist-btn:hover {
        background: #0066cc;
    }
    
    /* 导航栏折叠/展开功能（仅手机端） */
    .nav-column h4 {
        cursor: pointer;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    
    .nav-column h4::after {
        content: '+';
        font-size: 14px;
        font-weight: bold;
        transition: transform 0.3s ease;
    }
    
    .nav-column h4.collapsed::after {
        content: '-';
    }
    
    .nav-column ul {
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        margin: 0;
        transform: translateY(-5px);
        transition-property: max-height, opacity, transform;
    }
    
    .nav-column ul.collapsed,
    .nav-column .contact-info.collapsed {
        max-height: 500px;
        opacity: 1;
        margin: 0;
        overflow: hidden;
        transform: translateY(0);
    }
    
    .nav-column .contact-info {
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        margin: 0;
        transform: translateY(-5px);
    }
}

/* 电脑模型样式 */
.computer-mockup {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1500px;
}

.computer-case {
    position: relative;
    width: 100%;
    max-width: 420px;
    transform-style: preserve-3d;
    transform: rotateX(-90deg) translateY(50px);
    opacity: 0;
    transition: all 0.5s ease;
}

.computer-case.animate {
    animation: computerOpen 2.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.computer-screen {
    position: relative;
    width: 100%;
    height: 260px;
    background: #1a1a1a;
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transform-origin: bottom center;
    transform: rotateX(-90deg);
    border: 3px solid #2a2a2a;
}

.computer-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #333, #555, #333);
    border-radius: 12px 12px 0 0;
}

.computer-case.animate .computer-screen {
    animation: screenOpen 2.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.screen-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    opacity: 0;
    transform: scale(0.8);
    border-radius: 8px;
    position: relative;
}

.screen-content::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
    pointer-events: none;
    border-radius: 8px;
}

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

.computer-case.animate .screen-content {
    animation: contentFadeIn 2s ease-out forwards 1.2s;
}

.screen-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.1) 0%, rgba(0, 255, 255, 0.05) 100%);
    pointer-events: none;
    opacity: 0;
    transition: all 0.5s ease;
}

.computer-case.animate .screen-glow {
    animation: glowFadeIn 2s ease-out forwards 1.8s;
}

.computer-base {
    position: relative;
    width: 100%;
    height: 25px;
    background: #333;
    border-radius: 0 0 16px 16px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    border-top: 2px solid #222;
}

.computer-base::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 4px;
    background: #222;
    border-radius: 0 0 8px 8px;
}

.base-front {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #444, #555, #444);
    border-radius: 0 0 12px 12px;
}

.base-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: #222;
    border-radius: 0 0 4px 4px;
}

/* 电脑底座指示灯 */
.base-indicator {
    position: absolute;
    top: 8px;
    right: 20px;
    width: 8px;
    height: 8px;
    background: #4CAF50;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.6);
    animation: indicatorPulse 2s ease-in-out infinite;
}

@keyframes indicatorPulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

/* 电脑打开动画 */
@keyframes computerOpen {
    0% {
        transform: rotateX(-90deg) translateY(60px) scale(0.9);
        opacity: 0;
    }
    50% {
        transform: rotateX(-8deg) translateY(15px) scale(0.95);
        opacity: 0.8;
    }
    100% {
        transform: rotateX(0deg) translateY(0) scale(1);
        opacity: 1;
    }
}

/* 屏幕打开动画 */
@keyframes screenOpen {
    0% {
        transform: rotateX(-90deg);
    }
    50% {
        transform: rotateX(-4deg);
    }
    100% {
        transform: rotateX(0deg);
    }
}

/* 内容淡入动画 */
@keyframes contentFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.75) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* 屏幕发光动画 */
@keyframes glowFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* 悬停效果 */
.computer-case:hover {
    transform: translateY(-8px) rotateX(3deg) scale(1.02);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.computer-case:hover .computer-screen {
    box-shadow: 0 12px 32px rgba(0, 123, 255, 0.4);
    transition: box-shadow 0.4s ease;
}

.computer-case:hover .screen-glow {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.25) 0%, rgba(0, 255, 255, 0.15) 100%);
    opacity: 1;
    transition: all 0.4s ease;
}

.computer-case:hover .screen-content img {
    transform: scale(1.03);
    transition: transform 0.4s ease;
}

.computer-case:hover .base-indicator {
    background: #42A5F5;
    box-shadow: 0 0 15px rgba(66, 165, 245, 0.8);
    transition: all 0.4s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .computer-case {
        max-width: 320px;
    }
    
    .computer-screen {
        height: 200px;
    }
    
    .computer-case:hover {
        transform: translateY(-5px) rotateX(2deg) scale(1.01);
    }
}

/* 登录状态样式 */
.login-in {
    display: none;
    align-items: center;
    gap: 10px;
    position: relative;
}

.head-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.head-img:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.ml-10 {
    margin-left: 10px;
}

.font-el1 {
    font-size: 14px;
}

.name {
    font-size: 14px;
    color: #333;
    font-weight: 500;
    white-space: nowrap;
}

/* 登录菜单样式 */
.login-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    padding: 8px 0;
    margin-top: 8px;
    z-index: 1000;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.login-menu-item {
    padding: 10px 16px;
    font-size: 14px;
    color: #333;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.login-menu-item:hover {
    background-color: #f8f9fa;
    color: #007bff;
}

.menu-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: middle;
}

/* 实名认证状态样式 */
.real-name {
    font-size: 14px;
    color: #666;
}

.no-real-name {
    color: #ff4757;
}

/* 未登录状态样式 */
.no-login {
    display: flex;
    align-items: center;
    gap: 15px;
}

.no-login .header-link {
    font-size: 14px;
    color: #000;
    text-decoration: none;
    transition: color 0.2s ease;
}

.no-login .header-link:hover {
    color: #007bff;
}

.no-login .btn-primary {
    background: #007bff;
    color: #fff;
    padding: 0 20px;
    font-size: 14px;
    font-weight: 500;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.no-login .btn-primary:hover {
    background: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
}

/* 响应式登录状态 */
@media (max-width: 768px) {
    .login-in {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .login-menu {
        position: static;
        margin-top: 10px;
    }
    
    .no-login {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}