body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #333;
    scroll-padding-top: 80px;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

.logo img {
    height: 40px;
}

nav {
    display: flex;
}

nav a {
    color: #333;
    padding: 14px 20px;
    text-decoration: none;
    text-align: center;
    transition: color 0.3s;
}

nav a:hover {
    color: #00a0d8;
}

.hero {
    background-image: url('bj.jpg');
    background-size: cover;
    background-position: center;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    position: relative;
    /*margin-top: 60px;*/
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.2));
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    z-index: 1;
    position: relative;
}

.hero p {
    font-size: 1.2em;
    z-index: 1;
    position: relative;
}

section {
    padding: 40px 0;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

.container-p {
    text-indent: 2em;
    line-height: 30px;
}

.card {
    background: #ffffff;
    border: 1px solid #eaeaea;
    border-radius: 10px;
    padding: 25px;
    width: calc(33.333% - 30px);
    min-width: 250px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    list-style-type: none;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.card h3 {
    color: #00a0d8;
    margin-bottom: 15px;
    font-size: 20px;
}

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

footer {
    background-color: #F5F5F7;
    color: 333;
    text-align: center;
    padding: 1em 0;
    margin-top: 20px;
    font-size: 12px;
}

footer p {
    margin: 5px 0;
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
    }

    nav {
        margin-top: 10px;
    }
}

.contact-container {
    display: flex;
    align-items: stretch;
    gap: 60px;
    padding: 20px 0;
    max-width: 1200px;
    margin: 0;
}

.contact-info {
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    min-width: 260px;
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.qr-code {
    text-align: center;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.qr-code img {
    width: 160px;
    height: 160px;
    border-radius: 10px;
    transition: transform 0.3s;
}

.qr-code p {
    margin-top: 12px;
}

/* 平板电脑响应式 */
@media screen and (max-width: 1024px) {
    .contact-container {
        gap: 30px;
        padding: 15px;
    }

    .contact-info {
        padding: 30px;
    }

    .qr-code img {
        width: 160px;
        height: 160px;
    }
}

/* 手机端响应式 */
@media screen and (max-width: 768px) {
    .contact-container {
        flex-direction: column;
        gap: 20px;
    }

    .contact-info {
        min-width: auto;
        width: 100%;
        padding: 20px;
    }

    .contact-info h3 {
        font-size: 20px !important;
    }

    .contact-info p {
        font-size: 14px;
        padding: 8px !important;
    }

    .contact-info span {
        word-break: break-all;
    }

    .qr-code {
        width: 100%;
        padding: 20px;
    }

    .qr-code img {
        width: 140px;
        height: 140px;
    }
}

/* 小屏手机响应式 */
@media screen and (max-width: 480px) {
    .contact-container {
        padding: 10px;
    }

    .contact-info {
        padding: 15px;
    }

    .qr-code {
        padding: 15px;
    }

    .qr-code img {
        width: 120px;
        height: 120px;
    }
}

/* 产品和服务卡片容器 */
.card-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0;
    width: 100%;
}

/* 卡片样式优化 */
.card {
    background: #ffffff;
    border: 1px solid #eaeaea;
    border-radius: 10px;
    padding: 25px;
    width: calc(33.333% - 14px);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    list-style-type: none;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.card h3 {
    color: #00a0d8;
    margin-bottom: 15px;
    font-size: 20px;
}

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

/* 平板电脑响应式 */
@media screen and (max-width: 1024px) {
    .card-container {
        gap: 15px;
    }

    .card {
        padding: 20px;
    }
}

/* 手机端响应式 */
@media screen and (max-width: 768px) {
    .card-container {
        flex-direction: column;
        gap: 15px;
    }

    .card {
        width: 100%;
    }
}

/* 小屏手机响应式 */
@media screen and (max-width: 480px) {
    .card {
        padding: 15px;
    }
}

.contact-info svg {
    width: 16px !important;
    height: 16px !important;
    margin-right: 12px !important;
}

.contact-info p {
    margin: 12px 0 !important;
    padding: 8px !important;
    font-size: 14px;
}

.contact-info span,
.contact-info a {
    font-size: 14px;
}

@media screen and (max-width: 768px) {
    .contact-info {
        padding: 20px;
        min-width: auto;
    }

    .contact-info p {
        margin: 10px 0 !important;
        padding: 6px !important;
    }
}

.contact-info h3 {
    text-align: left;
    padding-left: 0;
}

html {
    scroll-behavior: smooth;
}