/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", Arial, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
    background-color: #f8f9fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 标题样式层级 */
.section-title {
    font-size: 24px;
    font-weight: 600;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, #3498db, #2980b9);
    border-radius: 3px;
}

/* 段落样式 */
p {
    text-align: left;
    margin-bottom: 15px;
    font-size: 16px;
    color: #555;
}

/* 页头样式 */
.header {
    background: linear-gradient(to right, #2c3e50, #34495e);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    position: relative;
}

.header-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    color: #fff;
    font-weight: 700;
    text-align: center;
}

/* 汉堡菜单按钮 */
.hamburger-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger-btn img {
    width: 30px;
    height: 30px;
}

/* 导航菜单 */
.nav {
    display: block;
}

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

.nav-item {
    margin-left: 25px;
}

.nav-item a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-item a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 下载区块样式 */
.download-section {
    padding: 60px 0;
    background-color: #fff;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.download-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.download-info {
    flex: 1;
}

.intro-text {
    line-height: 1.8;
    color: #666;
}

/* 下载按钮组 */
.btn-group {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    color: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

.download-btn img {
    width: 60px;
    height: 60px;
}

.ios-btn {
    background: linear-gradient(to right, #5dade2, #3498db);
}

.android-btn {
    background: linear-gradient(to right, #2ecc71, #27ae60);
}

.reg-btn {
    background: linear-gradient(to right, #f39c12, #e67e22);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.download-img {
    flex: 1;
    text-align: center;
}

.download-img img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* 技术支持区块 */
.tech-support-section {
    padding: 60px 0;
    background: linear-gradient(to bottom, #f8f9fa, #e9ecef);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
    margin-bottom: 20px;
}

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

.tech-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 18px;
    color: #333;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

/* 门店助手介绍区块 */
.intro-section {
    padding: 60px 0;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.intro-content {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 10px;
}

/* 页尾样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 30px;
}

.footer-follow {
    text-align: center;
    margin-bottom: 30px;
}

.footer-title {
    font-size: 20px;
    margin-bottom: 15px;
}

.qrcode img {
    width: 120px;
    height: 120px;
    border: 3px solid #fff;
    border-radius: 8px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px 40px;
    margin-bottom: 30px;
}

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

.footer-links a:hover {
    color: #3498db;
}

.copyright {
    text-align: center;
    font-size: 14px;
    color: #bdc3c7;
}

/* 响应式适配 */
@media (max-width: 992px) {
    .download-wrap {
        flex-direction: column;
    }

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

@media (max-width: 768px) {
    /* 汉堡菜单显示 */
    .hamburger-btn {
        display: block;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #34495e;
        display: none;
        z-index: 999;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .nav.show {
        display: block;
    }

    .nav-list {
        flex-direction: column;
    }

    .nav-item {
        margin: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-item a {
        display: block;
        padding: 15px 20px;
        text-align: center;
        /* 移动端菜单背景色区分 */
        background-color: #2c3e50;
        margin: 5px 10px;
        border-radius: 4px;
    }

    .nav-item a:hover {
        background-color: #3498db;
    }

    /* 页尾链接移动端一行两个 */
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .tech-list {
        grid-template-columns: 1fr;
    }

    .download-btn {
        font-size: 16px;
    }

    .download-btn img {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 24px;
    }

    .section-title {
        font-size: 20px;
    }

    .intro-text {
        font-size: 14px;
    }
}