/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ==================== 变量定义 ==================== */
:root {
    --primary: #00c9b7;
    --primary-dark: #009e8e;
    --accent: #ff9f1c;
    --dark-bg: #0d1f2f;
    --card-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 201, 183, 0.25);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

/* ==================== 基础样式 ==================== */
body {
    font-family: 'HarmonyOS_Sans_Light', 'Roboto-Light', sans-serif;
    background-color: #f5f9ff;
    color: #1c2e4a;
    line-height: 1.5;
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    padding-top: 86px; /* 为固定导航栏预留空间 */
}

.bg-grid {
    background-image: 
        linear-gradient(rgba(0, 255, 200, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 200, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center center;
}

/* 图片响应式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==================== 容器 ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ==================== 导航栏 ==================== */
#navbar_box{
    width:100%;
    min-height: 70px;
    min-height: 70px;
    position: fixed; /* 固定定位 */
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}
.navbar {
    max-width: 1280px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    flex-wrap: nowrap;
    gap: 16px;
    min-height: 70px;
    background: rgba(245, 249, 255, 0.95); /* 半透明背景 */
    backdrop-filter: blur(10px); /* 毛玻璃效果 */
    transition: all 0.3s ease;
    margin:auto;
}

/* 滚动时加深阴影 */
.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
    background: rgba(245, 249, 255, 0.98);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex: 1;
    min-width: 0; /* 防止溢出 */
}

/* logo 内部包装器 */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden; /* 防止文字溢出 */
}

.logo-icon {
    width: 64px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0; /* 防止缩放 */
}

.logo-icon-img {
    width: 64px;
    height: 64px;
    margin-left: -10px;
    margin-top: -10px;
}

.logo-text {
    overflow: hidden; /* 防止文字溢出 */
}

.logo-text h1 {
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.5;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.logo-text span {
    font-size: 1rem;
    font-weight: 300;
    color: #4a5f7a;
    letter-spacing: 1px;
    white-space: nowrap;
}

.logo-text strong {
    color: var(--primary-dark);
    font-weight: 700;
}

/* 汉堡菜单按钮 */
.nav-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #1e2f44;
    padding: 8px 12px;
    z-index: 1001;
    flex-shrink: 0;
    line-height: 1; /* 防止高度影响 */
}

.nav-toggle:hover {
    color: var(--primary);
}

/* 导航链接 */
.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
}

.nav-links a {
    text-decoration: none;
    font-weight: 500;
    color: #1e2f44;
    transition: 0.2s;
    font-size: 1.05rem;
    white-space: nowrap;
}

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

/* 语言切换器 */
.lang-switcher {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center; /* 居中对齐 */
}

.lang-btn {
    padding: 6px 12px;
    border: 1px solid rgba(0, 201, 183, 0.3);
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #1e2f44 !important;
    cursor: pointer;
    transition: 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    line-height: 1;
    text-align: center;
}

.lang-btn i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-links .lang-btn:hover,
.nav-links .lang-btn.active {
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
}

.nav-links .lang-btn:hover i,
.nav-links .lang-btn.active i {
    color: white !important;
}

/* ==================== HERO 区域 ==================== */
.hero {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 40px 0 60px;
}

.hero-badge {
    background: rgba(0, 201, 183, 0.15);
    color: #00897b;
    padding: 6px 18px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-block;
    backdrop-filter: blur(4px);
    margin-bottom: 20px;
    border: 1px solid rgba(0, 201, 183, 0.3);
}

.hero h2 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #0b1d2f;
    margin-bottom: 24px;
}

.hero h2 i {
    color: var(--primary);
    font-style: normal;
    border-bottom: 4px solid var(--accent);
}

.hero p {
    font-size: 1.2rem;
    color: #2b405b;
    max-width: 550px;
    margin-bottom: 32px;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

/* ==================== HERO 浮动动画 ==================== */
.hero-visual {
    padding: 30px 20px 20px 30px;
    backdrop-filter: blur(4px);
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    display: inline-block;
}

.hero-floating-img {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(0, 201, 183, 0.3));
}

/* 浮动动画关键帧 */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-5px) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(0deg);
    }
    75% {
        transform: translateY(-5px) rotate(-0deg);
    }
}

/* 添加光晕效果 */
.hero-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 60%;
    background: radial-gradient(ellipse, rgba(0, 201, 183, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

/* 光晕脉冲动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* 按钮样式 */
.btn-primary,
.btn-ghost {
    min-height: 44px;
    min-width: 44px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #00b1a3);
    border: none;
    color: white;
    padding: 16px 42px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 12px 30px -8px var(--primary);
    cursor: pointer;
    transition: 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #00b8a9, #009e8f);
    transform: scale(1.02);
    box-shadow: 0 18px 35px -8px #00b9a6;
}

.btn-ghost {
    background: transparent;
    border: none;
    color: #1e2f44;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    border-bottom: 2px solid transparent;
    transition: 0.2s;
    cursor: pointer;
}

.btn-ghost i {
    background: white;
    border-radius: 50%;
    padding: 6px;
    color: var(--primary);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.05);
}

.btn-ghost:hover {
    border-bottom-color: var(--primary);
}

/* 视频弹窗 */
#videoBox {
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    backdrop-filter: blur(8px);
}

/* 视频弹出框关闭按钮 */
.video-close-btn {
    position: absolute;
    top: 100px;
    right: 20%;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1002;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    animation: rotateIn 0.6s ease-out;
}

.video-close-btn:hover {
    background: rgba(0, 201, 183, 0.8);
    border-color: var(--primary);
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 201, 183, 0.5);
}

.video-close-btn i {
    transition: transform 0.3s ease;
}

.video-close-btn:hover i {
    transform: rotate(90deg);
}

/* 关闭按钮旋转进入动画 */
@keyframes rotateIn {
    0% {
        opacity: 0;
        transform: rotate(-180deg) scale(0.5);
    }
    50% {
        opacity: 0.5;
        transform: rotate(-90deg) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

#videoEle {
    width: 60%;
    margin-top: 100px;
    max-width: 900px;
    max-height: 70vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.hero-visual {
    padding: 30px 20px 20px 30px;
    backdrop-filter: blur(4px);
    position: relative;
}

.hero-visual img {
    max-height: 400px;
    object-fit: contain;
}

/* ==================== 品牌条 ==================== */
.brand_icon {
    height: 40px;
}

.brand-bar {
    background: white;
    padding: 30px 0;
    border-radius: 90px 90px 30px 30px;
    margin: 50px 0 30px;
    box-shadow: 0 10px 30px -15px rgba(0, 100, 100, 0.2);
    border: 1px solid rgba(0, 201, 183, 0.2);
}

.brand-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px 20px;
    align-items: center;
    opacity: 0.8;
}

.brand-grid i {
    font-size: 2.5rem;
    color: #a0b8cf;
    transition: 0.2s;
}

.brand-grid span {
    font-weight: 600;
    font-size: 1.2rem;
    color: #53718e;
    letter-spacing: 1px;
}

.brand-grid i:hover {
    color: var(--primary);
}

/* ==================== 服务区域 ==================== */
.section-title {
    text-align: center;
    margin: 80px 0 40px;
}

.section-title h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #11212e;
}

.section-title p {
    color: #3e5e7c;
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.service-card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 32px;
    padding: 36px 24px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 20px 40px -15px rgba(0, 150, 200, 0.15);
    transition: 0.25s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 30px 50px -18px #00c9b7;
}

.service-card img {
    max-width: 50%;
    margin: 0 auto 16px;
}

.service-icon {
    background: white;
    width: 80px;
    height: 80px;
    border-radius: 30px 10px 30px 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2.5rem;
    color: var(--primary);
    box-shadow: 0 15px 20px -10px rgba(0, 201, 183, 0.3);
    border: 1px solid #e0f5f0;
}

.service-card h4 {
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #142d44;
}

.service-card p {
    color: #365670;
}

/* ==================== 特色优点 ==================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin: 70px 0;
}

.feature-item {
    background: white;
    border-radius: 28px;
    padding: 30px;
    border: 1px solid rgba(0, 201, 183, 0.2);
    box-shadow: 0 20px 30px -15px #d0eaea;
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.feature-item .fa-circle-check {
    font-size: 2rem;
    color: var(--primary);
    background: #e1fff5;
    border-radius: 50%;
    padding: 6px;
    flex-shrink: 0; /* 防止图标压缩 */
}

.feature-text h5 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-text p {
    color: #3e5972;
    line-height: 1.6;
}

/* ==================== 底部 Footer ==================== */
footer {
    background: white;
    border-radius: 40px 40px 0 0;
    padding: 50px 0 30px;
    margin-top: 60px;
    border-top: 2px solid rgba(0, 201, 183, 0.2);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
}

/* 二维码图片基础样式 */
.footer-col ul li img {
    max-width: 140px;
    width: 100%;
    height: auto;
    display: block;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 64px;
    height: 44px;
    font-size: 24px;
}

.footer-logo span {
    font-weight: 700;
    font-size: 1.3rem;
}

.footer-col p {
    color: #3c5a74;
    margin: 16px 0;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    background: #e6f3f0;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 1.3rem;
    transition: 0.2s;
}

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

.footer-col h6 {
    font-size: 1.2rem;
    margin-bottom: 24px;
    font-weight: 700;
    color: #132433;
}

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

.footer-col ul li {
    margin-bottom: 14px;
}

.footer-col a {
    text-decoration: none;
    color: #3d5e7a;
    font-weight: 400;
}

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

.copyright {
    border-top: 1px solid #cae7e2;
    margin-top: 50px;
    padding-top: 30px;
    text-align: center;
    color: #658098;
}

/* ==================== 响应式媒体查询 ==================== */

/* 平板设备 (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    body {
        padding-top: 86px;
    }

    .navbar {
        padding: 14px 0;
    }

    .container {
        padding: 0 24px;
    }

    .hero h2 {
        font-size: 2.8rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section-title h3 {
        font-size: 2.2rem;
    }

    .service-card h4 {
        font-size: 1.5rem;
    }

    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .feature-item {
        padding: 24px;
    }

    .feature-text h5 {
        font-size: 1.3rem;
    }

    .feature-text p {
        font-size: 0.95rem;
    }

    .nav-links {
        gap: 20px;
    }

    .nav-links a {
        font-size: 0.95rem;
    }

    .lang-btn {
        padding: 5px 10px;
        font-size: 0.8rem;
    }

    /* ========== Footer 平板端优化 ========== */
    footer {
        padding: 40px 0 24px;
        margin-top: 50px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr); /* 改为 2 列 */
        gap: 40px;
    }

    .footer-col {
        width: 100%;
    }

    /* 覆盖 HTML 内联样式 */
    .footer-col[style*="width:300px"],
    .footer-col[style*="width:450px"] {
        width: 100% !important;
    }

    .footer-logo {
        justify-content: flex-start;
    }

    .footer-col h6 {
        font-size: 1.1rem;
    }

    .footer-col ul li {
        font-size: 0.9rem;
    }

    /* 二维码图片 - 确保正常显示 */
    .footer-col ul li img {
        max-width: 180px;
        min-width: 140px;
        width: auto;
        height: auto;
    }

    /* 微信列单独处理 - 居中显示 */
    .footer-col:last-child {
        text-align: center;
    }

    .footer-col:last-child h6 {
        text-align: center;
    }

    .footer-col:last-child ul {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .footer-col:last-child ul li {
        margin-bottom: 0;
    }
}

/* 移动端 (max-width: 768px) */
@media (max-width: 768px) {
    body {
        padding-top: 70px; /* 移动端导航栏较矮 */
    }

     /* 基础字体调整 */
    html {
        font-size: 14px;
    }

    /* 容器 */
    .container {
        padding: 0 16px;
    }

    /* 导航栏 - 固定高度防止跳动 */
    .navbar {
        flex-wrap: nowrap;
        padding: 12px 0;
        min-height: 60px;
    }

    /* Logo 区域 - 标题和菜单键同一行 */
    .logo {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 8px;
        flex-wrap: nowrap;
    }

    .logo-wrapper {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        min-width: 0;
        overflow: hidden;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    .logo-icon-img {
        width: 40px;
        height: 40px;
        margin: 0;
    }

    .logo-text {
        overflow: hidden;
    }

    .logo-text h1 {
        font-size: 1.1rem;
        line-height: 1.2;
        max-width: 250px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .logo-text span {
        font-size: 0.7rem;
        display: none;
    }

    /* 显示汉堡菜单 */
    .nav-toggle {
        display: block;
        padding: 6px 10px;
        flex-shrink: 0;
        line-height: 1;
    }

    /* 导航链接 - 绝对定位，不影响页面流 */
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        margin-top: 0;
        padding: 0;
        background: white;
        border-radius: 16px;
        border: 1px solid rgba(0, 201, 183, 0.2);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        display: none;
        justify-content: flex-start;
        overflow: hidden;
        z-index: 999;
    }

    .nav-links.active {
        display: flex !important;
        animation: slideDown 0.3s ease;
    }

    .nav-links a {
        width: 100%;
        padding: 14px 16px;
        text-align: center;
        border-bottom: 1px solid rgba(0, 201, 183, 0.1);
        font-size: 1rem;
        box-sizing: border-box;
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    /* 语言切换器 - 移动端优化 */
    .lang-switcher {
        flex-wrap: wrap;
        justify-content: center;
        gap: 6px;
        width: 100%;
        padding: 12px 16px;
        background: rgba(0, 201, 183, 0.05);
        border-radius: 0 0 16px 16px;
    }

    .lang-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
        justify-content: center;
        text-align: center;
        min-width: 50px;
    }

    .lang-btn i {
        margin-right: 4px;
    }

    /* HERO 区域 */
    .hero {
        grid-template-columns: 1fr;
        padding: 20px 0 40px;
        gap: 30px;
    }

    .hero-left {
        text-align: center;
    }

    .hero-badge {
        font-size: 0.8rem;
        padding: 5px 14px;
    }

    .hero h2 {
        font-size: 2rem;
        margin-bottom: 16px;
    }

    .hero p {
        font-size: 1rem;
        max-width: 100%;
        margin-bottom: 24px;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .btn-primary,
    .btn-ghost {
        width: 100%;
        justify-content: center;
        padding: 14px 28px;
    }

    .hero-floating-img {
        animation: float-mobile 4s ease-in-out infinite;
    }

    @keyframes float-mobile {
        0%, 100% {
            transform: translateY(0);
        }
        50% {
            transform: translateY(-10px);
        }
    }

    .hero-visual::before {
        display: none;
    }

    /* 视频弹窗 */
    .video-close-btn {
        top: 15px;
        right: 15px;
        width: 44px;
        height: 44px;
        font-size: 1.3rem;
    }
    
    #videoEle {
        width: 90%;
        margin-top: 60px;
    }

    .hero-visual {
        order: -1;
        padding: 20px 10px;
        text-align: center;
    }

    .hero-visual img {
        max-height: 200px;
    }

    /* 品牌条 - 移动端一行显示 */
    .brand-bar {
        border-radius: 30px 30px 15px 15px;
        margin: 30px 0 20px;
        padding: 20px 0;
    }

    .brand-grid {
        flex-direction: row;
        justify-content: center;
        gap: 15px 10px;
    }

    .brand_icon {
        height: 28px;
    }

    .brand-grid span {
        font-size: 0.85rem;
    }

    /* 服务区域 */
    .section-title {
        margin: 50px 0 30px;
    }

    .section-title h3 {
        font-size: 1.8rem;
    }

    .section-title p {
        font-size: 1rem;
    }

    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .service-card {
        padding: 28px 20px;
        border-radius: 24px;
    }

    .service-card img {
        max-width: 70%;
    }

    .service-icon {
        width: 64px;
        height: 64px;
        font-size: 2rem;
    }

    .service-card h4 {
        font-size: 1.4rem;
    }

    .service-card p {
        font-size: 0.95rem;
        line-height: 1.5rem;
    }

    /* 特色优点 */
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        margin: 40px 0;
    }

    .feature-item {
        padding: 16px 12px;
        flex-direction: column;
        align-items: center;
        text-align: center;
        border-radius: 20px;
    }

    .feature-item .fa-circle-check {
        font-size: 1.4rem;
        padding: 4px;
        margin-bottom: 8px;
    }

    .feature-text h5 {
        font-size: 1rem;
        margin-bottom: 6px;
    }

    .feature-text p {
        font-size: 0.8rem;
        line-height: 1.5;
    }

    /* 底部 - 二维码居中 */
    footer {
        border-radius: 30px 30px 0 0;
        padding: 40px 0 24px;
        margin-top: 40px;
    }

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

    .footer-col {
        width: 100% !important;
        text-align: center;
    }

    .footer-col ul {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-col ul li {
        margin-bottom: 10px;
        text-align: center;
    }

    /* 二维码图片 - 移动端确保正常显示 */
    .footer-col ul li img {
        max-width: 140px;
        min-width: 120px;
        width: auto;
        height: auto;
        margin: 0 auto;
    }

    .footer-logo {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    .copyright {
        margin-top: 30px;
        padding-top: 20px;
        font-size: 0.85rem;
    }
}

/* 小屏手机 (max-width: 480px) */
@media (max-width: 480px) {
    body {
        padding-top: 66px;
    }

    html {
        font-size: 13px;
    }

    .container {
        padding: 0 12px;
    }

    .navbar {
        min-height: 55px;
    }

    .logo-text h1 {
        font-size: 1rem;
        max-width: 250px;
    }

    .logo-icon-img {
        width: 36px;
        height: 36px;
    }

    .nav-toggle {
        font-size: 20px;
        padding: 6px 8px;
    }

    .lang-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
        min-width: 45px;
    }

    /* 视频弹窗 */
    .video-close-btn {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    #videoEle {
        width: 95%;
        margin-top: 50px;
    }

    /* 品牌条 - 小屏优化 */
    .brand_icon {
        height: 24px;
    }

    .brand-grid span {
        font-size: 0.75rem;
    }

    .brand-grid {
        gap: 10px 8px;
    }

    .hero h2 {
        font-size: 1.7rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .hero-visual::before {
        display: none;
    }

    .btn-primary,
    .btn-ghost {
        padding: 12px 20px;
        font-size: 1rem;
    }

    .section-title h3 {
        font-size: 1.5rem;
    }

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

    .service-card {
        padding: 24px 16px;
    }

    .service-card p{
        line-height: 1.5rem;
    }

    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .feature-item {
        padding: 12px 8px;
        border-radius: 16px;
    }

    .feature-item .fa-circle-check {
        font-size: 1.2rem;
        padding: 3px;
    }

    .feature-text h5 {
        font-size: 0.9rem;
    }

    .feature-text p {
        font-size: 0.75rem;
    }

    /* 二维码 - 小屏手机 */
    .footer-col ul li img {
        max-width: 120px;
        min-width: 100px;
    }

    .footer-logo span {
        font-size: 1.1rem;
    }
}

/* 横屏手机优化 */
@media (max-height: 500px) and (orientation: landscape) {
    body {
        padding-top: 60px;
    }

    .hero {
        padding: 20px 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .hero-visual {
        display: none;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-cta,
    #videoBox,
    footer {
        display: none;
    }

    body {
        background: white;
    }

    .container {
        max-width: 100%;
    }
}

/* 下拉动画 */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 减少动态效果偏好 */
@media (prefers-reduced-motion: reduce) {
    .hero-floating-img {
        animation: none;
    }

    .hero-visual::before {
        animation: none;
    }

    .navbar {
        transition: none;
    }
}