#translate select {
    padding: 10px 15px;
    background-color: white;
    border: none;
    border-radius: 5px;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all var(--transition-speed) ease;
}

.ignore {
    color: #fff;
    text-decoration: none !important;
}

    .ignore:hover {
        color: #1a73e8;
        text-decoration: none !important;
    }

.faq-answer > table {
    
    border: 1px solid rgba(0,0,0,0.2);
}
    .faq-answer > table tr {
        
    }
        .faq-answer > table tr td {
            border: 1px solid rgba(0,0,0,0.2);
            font-size: 14px;
            padding: 5px 8px;
        }
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-blue: #1a73e8;
    --dark-blue: #0d47a1;
    --light-blue: #e3f2fd;
    --accent-blue: #42a5f5;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8fbff;
    --white: #fff;
    --border-color: #e0e0e0;
    --primary-color: #4285f4;
    --hover-color: #3367d6;
    --text-color: #333;
    --light-text: #fff;
    --transition-speed: 0.3s;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* 图标样式 */
.dropdown > table tr td a .iconfont {
    font-size: 13px;
    padding: 5px;
    border-radius: 9px;
    color: #fff;
    margin-right: 5px;
}

.footer-links li > a .iconfont {
    font-size: 16px;
    margin-right: 5px;
}

.faq-question > .iconfont {
    color: #1a73e8;
    margin-right: 10px;
    font-size: 22px;
}

.faq-answer p > .iconfont {
    color: #09b05c;
    margin-right: 10px;
}

.a1 {
    background: #fb275d
}

.a2 {
    background: #ffcc00
}

.a3 {
    background: #6161ff
}

.a4 {
    background: #2bd9d9
}

.a5 {
    background: #00ca72
}

.a6 {
    background: #17e3e3
}

.a7 {
    background: #ff71cd
}

.b1 {
    color: #0094ff
}

.b2 {
    color: #fb275d
}

.b3 {
    color: #00ca72
}

.b4 {
    color: #ffcc00
}

.b5 {
    color: #17e3e3
}

.b6 {
    color: #6161ff
}

.b7 {
    color: #ff71cd
}


.banner-btn > .iconfont {
    font-size: 20px;
}

.float-btn > .iconfont {
    font-size: 23px;
}

.feature-icon > .iconfont {
    font-size: 16px;
    padding: 10px;
    border-radius: 8px;
    color: #fff;
    background: #1a73e8;
    transition: all 0.3s;
}

/* 修复：FAQ图标翻转问题 */
.faq-toggle {
    transition: transform 0.3s;
    float: right;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.scenario-icon > .iconfont {
    font-size: 30px;
}

.social-icons > a {
    text-decoration: none !important;
}

    .social-icons > a .iconfont {
        font-size: 35px;
    }

/* Header Styles */
#header {
    background: #000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    width:200px;
}
    .logo img{
        width:200px;
    }
    .nav-desktop {
        display: flex;
    }

.nav-mobile {
    display: none;
}

nav ul {
    display: flex;
    list-style: none;
}

    nav ul li {
        position: relative;
        margin-left: 15px;
    }

        nav ul li a {
            text-decoration: none;
            color: var(--white);
            font-weight: 500;
            transition: color 0.3s;
            padding: 10px 0;
            display: block;
        }
        @media (max-width:780px){
            nav ul li a {
                text-decoration: none;
                color: #000 !important;
                font-weight: 500;
                transition: color 0.3s;
                padding: 10px 0;
                display: block;
            }
        }
            nav ul li a:hover {
                color: var(--primary-blue);
            }

/* 下拉菜单 */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    width: 850px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s;
    z-index: 100;
    padding: 10px;
    display: grid;
    gap: 8px;
}

    .dropdown table tr td {
        border-bottom: 1px solid #f8f8f8;
    }

        .dropdown table tr td > b {
            font-size: 15px;
            padding-right: 25px;
        }

nav ul li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    padding: 10px 6px;
    border-radius: 4px;
    display: block;
    color: var(--text-dark);
    font-size: 14px;
    transition: all 0.3s;
    border: none;
}

    .dropdown a:hover {
        background: var(--light-blue);
        color: var(--primary-blue);
        transform: translateX(5px);
    }

.auth-buttons {
    display: flex;
    gap: 15px;
}

.language-selector {
    position: relative;
    width: 140px;
}

.selector-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 15px;
    background-color: white;
    border: none;
    border-radius: 5px;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all var(--transition-speed) ease;
}

    .selector-button:hover {
        background-color: #f1f3f4;
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    }

    .selector-button:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.3);
    }

    .selector-button::after {
        content: "▼";
        font-size: 12px;
        margin-left: 8px;
        transition: transform var(--transition-speed) ease;
    }

    .selector-button.active::after {
        transform: rotate(180deg);
    }

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    opacity: 0;
    transition: all var(--transition-speed) ease;
    z-index: 10;
}

    .language-dropdown.active {
        max-height: 300px;
        opacity: 1;
    }

.language-option {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-color);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

    .language-option:hover {
        background-color: #f1f3f4;
        color: var(--primary-color);
    }

    .language-option.selected {
        background-color: #e8f0fe;
        color: var(--primary-color);
        font-weight: 600;
    }

    .language-option:first-child {
        border-top-left-radius: var(--border-radius);
        border-top-right-radius: var(--border-radius);
    }

    .language-option:last-child {
        border-bottom-left-radius: var(--border-radius);
        border-bottom-right-radius: var(--border-radius);
    }

.btn {
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-dark);
}

.btn-signup {
    background: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    color: var(--white);
    min-width: 90px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
}

/* Banner Styles */
.banner {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    margin-top: 80px;
}

.banner-content {
    flex: 1;
    min-width: 300px;
}

.banner-title {
    font-family: 'Arial Black', 'Microsoft YaHei', sans-serif;
    font-size: 55px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 15px;
    color: var(--dark-blue);
    text-shadow: 2px 2px 2px #aeaeae;
}

.banner-subname {
    font-size: 25px;
    font-weight: 600;
    margin-bottom: 20px;
    margin-top: 10px;
}

.banner-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* 新增按钮样式 */
.banner-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.banner-btn {
    padding: 8px 24px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-pc {
    background: var(--primary-blue);
    color: white;
    border: 1px solid var(--primary-blue);
}

.btn-app {
    background: var(--white);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

.btn-mini {
    background: linear-gradient(135deg, #07c160 0%, #09b05c 100%);
    color: white;
    border: 1px solid #07c160;
}

.banner-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.banner-video {
    flex: 1;
    min-width: 300px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.video-container {
    width: 100%;
  
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.myVideo {
    margin: 0 auto;
    width: 100%;
}

.play-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    position: absolute;
}

    .play-btn img {
        width: 80px;
    }

.play-btn1 {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    position: absolute;
}

    .play-btn1 img {
        width: 80px;
    }

.case-scroll {
    width: 100%;
    margin-top: 40px;
    overflow: hidden;
    margin-bottom: 20px;
}


.scroll-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding-bottom: 10px;
}

.scroll-container {
    display: flex;
    width: max-content;
}




.case-title {
    font-size: 1.3rem;
    text-align: center;
    line-height: 36px;
    margin-bottom: 30px;
    font-weight: 600;
}

.case-item {
    min-width: 200px;
    margin: 0 15px;
    padding: 5px;
    border-radius: 8px;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer
}

    .case-item:hover {
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }
/* 浮动咨询条样式 */
.float-sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: relative;
}

.float-wechat {
    background: linear-gradient(135deg, #07c160 0%, #09b05c 100%);
}

.float-chat {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
}

.float-service {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
}

.float-btn:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.float-tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.float-btn:hover .float-tooltip {
    opacity: 1;
}

/* 新增：浮动侧边栏二维码样式 */
.qrcode-popup {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
    text-align: center;
    width: 150px;
}

    .qrcode-popup img {
        width: 120px;
        height: 120px;
        display: block;
        margin-bottom: 8px;
    }

    .qrcode-popup p {
        font-size: 12px;
        color: var(--text-dark);
        margin: 0;
    }

    .qrcode-popup::after {
        content: '';
        position: absolute;
        top: 50%;
        right: -8px;
        transform: translateY(-50%);
        border: 8px solid transparent;
        border-left-color: white;
    }

.float-btn:hover .qrcode-popup {
    opacity: 1;
    visibility: visible;
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    height: 80%;
    max-height: 600px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-content-kefu {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 800px;
    height: 80%;
    max-height: 714px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-header {
    padding: 15px 20px;
    background: #1a73e8;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 35px;
    cursor: pointer;
    padding: 0;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    height: calc(100% - 60px);
    overflow: auto;
}

.modal-body-kefu {
    height: calc(100% - 90px);
    overflow: hidden;
}

.modal-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 应用场景模块样式 */
.scenarios {
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 20px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.scenario-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    text-align: center;
}

    .scenario-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    }

.scenario-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
    color: white;
}

.scenario-ai {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.scenario-metaverse {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.scenario-blockchain {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.scenario-iot {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.scenario-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

.scenario-desc {
    color: var(--text-light);
    line-height: 2.3;
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-align: left;
}

/* Features Section */
.features {
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--dark-blue);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
        color: white;
    }

        .feature-card:hover .feature-icon > .iconfont {
            background: white;
            color: var(--primary-blue);
        }

        .feature-card:hover .feature-title,
        .feature-card:hover .feature-desc {
            color: white;
        }

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--primary-blue);
}

.feature-title {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--dark-blue);
    transition: color 0.3s;
}

.feature-desc {
    color: var(--text-light);
    line-height: 2;
    font-size: 15px;
    transition: color 0.3s;
}

.textp {
    font-size: 15px;
    margin-bottom: 15px;
    line-height: 2;
}

/* 产品介绍容器样式 */
.product-intro {
    width: 100%;
    /*background: linear-gradient(135deg, #f5f9ff 0%, #e6f0ff 100%);*/
    
}

/* 产品介绍项样式 - 添加最大宽度 */
.intro-item {
    display: flex;
    align-items: center;
    margin: 30px auto;
    width: 100%;
    max-width: 1200px;
    padding: 60px 0;
    box-sizing: border-box;
}

    /* 奇数项：图片在左，内容在右 */
    .intro-item:nth-child(odd) {
        flex-direction: row;
        background-color: #ffffff;
        padding: 0 20px;
    }

    /* 偶数项：图片在右，内容在左 */
    .intro-item:nth-child(even) {
        flex-direction: row-reverse;
        background-color: #f8faff;
    }

/* 内容容器样式 */
.intro-content {
    flex: 1;
    padding: 0 5%;
    max-width: 50%;
}

/* 图片容器样式 */
.intro-image {
    flex: 1;
    min-height: 400px;
    max-width: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

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

/* 移动端布局 */
@media (max-width: 768px) {
    .intro-item {
        flex-direction: column !important;
        padding: 40px 5px;
        max-width: 100%;
    }

        .intro-item:nth-child(odd),
        .intro-item:nth-child(even) {
            flex-direction: column !important;
        }

    .intro-image {
        min-height: 200px;
        width: 100%;
        max-width: 100%;
        order: 1;
    }

        .intro-image img {
            width: 100%;
            max-width: 100%;
            padding: 0;
        }

    .intro-content {
        order: 2;
        padding: 30px 0;
        max-width: 100%;
    }
}

/* 大屏幕适配 */
@media (min-width: 1400px) {
    .intro-item {
        max-width: 1400px;
    }
}

/* 平滑滚动效果 */
html {
    scroll-behavior: smooth;
}

.intro-content {
    flex: 1;
    padding: 30px;
}

.intro-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--dark-blue);
}

.intro-text {
    margin-bottom: 25px;
    color: var(--primary-blue);
    line-height: 1.7;
}

.intro-btn {
    position: relative;
    padding: 10px 15px;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    animation: gradientBG 3s ease infinite;
    background: linear-gradient(45deg, #1e90ff, #00bfff, #001be6);
    background-size: 200% 200%;
    text-decoration: none;
    top: 5px;
}

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



    /* 流光效果 */
    .intro-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient( 90deg, transparent, rgba(255, 255, 255, 0.4), transparent );
        animation: shine 3s ease infinite;
        z-index: -1;
    }

    /* 悬停效果 */
    .intro-btn:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }

/* 背景渐变动画 */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* 流光动画 */
@keyframes shine {
    0% {
        left: -100%;
    }

    20% {
        left: 100%;
    }

    100% {
        left: 100%;
    }
}

.intro-btn > .iconfont {
    color: #fff;
    transition: color 0.3s;
}

.intro-btn:hover > .iconfont {
    color: white;
}

/* FAQ Section */
.faq {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 20px;
}
@media(max-width:800px) {
    .faq {
        padding: 0 5px !important;
    }
    .banner{
        margin-top:20px !important
    }
    .banner-subtitle {
        font-size: 14px !important;
    }
}
.faq-item {
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    overflow: hidden;
}

.faq-question {
    padding: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: background 0.3s;
}

.faq-question-te {
    position: absolute;
    margin-left: 30px;
    font-size: 15px;
    letter-spacing: 1px;
}

.faq-question:hover {
    background: var(--light-blue);
}


.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    will-change: max-height;
}

    .faq-answer > p {
        font-size: 14px;
        line-height: 36px;
    
    }

.faq-item.active .faq-answer {
    max-height: none; /* 取消固定高度，根据内容自适应 */
    padding: 10px 20px 20px;
}

.faq-ask-btn {
    background: linear-gradient(45deg, #00ffff, #00bfff, #1e90ff);
    border: none;
    border-radius: 15px;
    color: white;
    padding: 6px 16px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s;
    float: right;
    margin-top: 5px;
}

    .faq-ask-btn:hover {
        background: #1a73e8;
        transform: translateY(-2px);
    }

/*.faq-ask-btn {
            position: relative;
            padding: 6px 16px;
            border: none;
            border-radius: 15px;
            font-size: 13px;
            float: right;
            color: white;
            text-transform: uppercase;
            cursor: pointer;
            overflow: hidden;
            z-index: 1;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            animation: gradientBG 3s ease infinite;
            background: linear-gradient(45deg, #00ffff, #00bfff, #1e90ff);
            background-size: 200% 200%;
            top: 5px;
        }*/


/* 提问对话框样式 - 右侧弹出 */
.question-modal {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100%;
    background: white;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    z-index: 3000;
    transition: right 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
}

    .question-modal.active {
        right: 0;
    }

.question-header {
    padding: 5px 20px;
    background: linear-gradient(360deg, #ffffff, #acbcff);
    color: var(--primary-blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .question-header span {
        font-size: 16px;
        font-weight: 600;
    }

.question-close {
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
}

.question-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.question-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

    .question-form input,
    .question-form textarea {
        padding: 10px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        font-size: 14px;
    }

    .question-form textarea {
        min-height: 120px;
        resize: vertical;
    }

.question-submit {
    padding: 10px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

    .question-submit:hover {
        background: var(--dark-blue);
    }
/* Footer Styles */
#footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-title {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links {
    list-style: none;
}

    .footer-links li {
        margin-bottom: 10px;
        font-size: 0.9rem;
    }

    .footer-links a {
        color: var(--white);
        text-decoration: none;
        transition: color 0.3s;
        cursor: pointer;
    }

        .footer-links a:hover {
            color: var(--primary-blue);
        }

.footer-bottom {
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 20px 20px 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.language-selector {
    display: flex;
    align-items: center;
    gap: 10px;
}

    .language-selector select {
        padding: 8px 12px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        background: var(--white);
    }

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

    .social-icons a {
        color: var(--white);
        font-size: 20px;
        transition: color 0.3s;
    }

        .social-icons a:hover {
            color: var(--primary-blue);
        }

.app-download {
    display: flex;
    gap: 15px;
    position: relative;
}

/* 修改：下载按钮不同颜色 */
.download-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 20px;
    border-radius: 8px;
    text-decoration: none;
    color: #fff;
    transition: all 0.3s;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border: none;
    font-weight: 500;
}

.download-btn-android {
    background: linear-gradient(135deg, #000 0%, #101010 100%);
}

.download-btn-ios {
    background: linear-gradient(135deg, #000 0%, #131313 100%);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.download-btn i {
    font-size: 24px;
}

/* 新增：电脑端悬浮二维码 */
.qrcode-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
    margin-bottom: 10px;
}

.download-btn:hover .qrcode-tooltip {
    opacity: 1;
    visibility: visible;
}

.qrcode-tooltip img {
    width: 120px;
    height: 120px;
    display: block;
}

.qrcode-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
}

.copyright {
    width: 100%;
    text-align: center;
    margin-top: 20px;
    color: var(--text-light);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .faq-answer p, .faq-question-te {
        font-size: 14px;
    }

    .nav-desktop {
        display: none;
    }

    .nav-mobile {
        display: block;
    }

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

    .auth-buttons {
        display: none;
    }

    .banner-title {
        font-size: 36px;
    }

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

    .intro-item {
        flex-direction: column !important;
        padding: 40px 15px;
        max-width: 100%;
    }

    .intro-image {
        min-height: 200px;
        width: 100%;
        max-width: 100%;
        order: 1;
    }

    .intro-content {
        order: 2;
        padding: 30px 0;
        max-width: 100%;
    }

    .float-tooltip, .qrcode-popup {
        display: none;
    }

    /* 修改：移动端底部footer-column一排显示两行 */
    .footer-container {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-column {
        min-width: auto;
        flex: none;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .app-download {
        justify-content: center;
    }

    .btn-pc {
        display: none;
    }

    /* 移动端浮动条样式调整 */
    .float-sidebar {
        right: 10px;
        bottom: 20px;
        top: auto;
        transform: none;
        flex-direction: row;
    }

    .float-btn {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }

    .float-tooltip {
        display: none;
    }

    /* 移动端下拉菜单样式调整 - 修改：每排显示3个 */
    .mobile-dropdown {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        padding-left: 0;
    }

        .mobile-dropdown a {
            text-align: center;
            padding: 8px 5px !important;
            font-size: 12px;
            border: 1px solid #f0f0f0;
            border-radius: 4px;
            margin-bottom: 5px;
            width: 32%;
            float: left;
            margin: 1% 0.5%;
        }

    .dropdown {
        width: 300px;
        grid-template-columns: repeat(2, 1fr);
    }

    /* 移动端提问对话框样式 */
    .question-modal {
        width: 100%;
        right: -100%;
    }
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--white);
    transform: translateX(-100%);
    transition: transform 0.3s;
    z-index: 999;
    overflow-y: auto;
    padding: 20px;
}

    .mobile-menu.active {
        transform: translateX(0);
    }

    .mobile-menu nav ul {
        flex-direction: column;
    }

        .mobile-menu nav ul li {
            margin: 0;
            border-bottom: 1px solid var(--border-color);
        }

            .mobile-menu nav ul li a {
                padding: 15px 0;
                display: block;
            }

.mobile-auth {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

.mobile-dropdown {
    display: none;
}

    .mobile-dropdown.active {
        display: block;
    }

/* 视频控制条样式 */
.myVideo::-webkit-media-controls {
    opacity: 0;
    transition: opacity 0.3s;
}

.myVideo:hover::-webkit-media-controls {
    opacity: 1;
}

.myVideo::-moz-media-controls {
    opacity: 0;
    transition: opacity 0.3s;
}

.myVideo:hover::-moz-media-controls {
    opacity: 1;
}