/* Banner样式 */
.banner {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.banner-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 14px 0 0;
    border-radius: 10px;
    max-width: 1000px;
    width: 90%;
}

    .banner-content h1 {
        font-size: 48px;
        font-weight: 700;
        margin-bottom: 20px;
        line-height: 1.2;
    }

    .banner-content p {
        font-size: 18px;
        margin-bottom: 30px;
        line-height: 1.5;
    }

/* 响应式设计 */
@media (max-width: 992px) {
    .banner {
        height: 500px;
    }

    .banner-content h1 {
        font-size: 36px;
    }

    .banner-content p {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .banner {
        height: 400px;
    }

    .banner-content {
        padding: 30px;
    }

        .banner-content h1 {
            font-size: 28px;
        }

        .banner-content p {
            font-size: 14px;
        }
}

/* 手机端优化 */
@media (max-width: 480px) {
    .banner {
        height: 250px;
    }

    .banner-content {
        background: none;
    }

        .banner-content h1 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .banner-content p {
            font-size: 15px;
            margin-bottom: 15px;
        }
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
}

.about-nav {
    background-color: #f9f9f9;
    border-radius: 10px;
    margin-bottom: 30px;
}

    .about-nav ul {
        display: flex;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .about-nav li {
        flex: 1;
        text-align: center;
    }

    .about-nav a {
        display: block;
        padding: 20px;
        text-decoration: none;
        color: #333;
        font-size: 1.1em;
        transition: all 0.3s ease;
        border-bottom: 3px solid transparent;
    }

        .about-nav a:hover,
        .about-nav a.active {
            color: #0066cc;
            border-bottom-color: #0066cc;
            background-color: #fff;
        }

.about-section {
    /* margin-bottom: 60px; */
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
}

    .section-title h2 {
        font-size: 2em;
        color: #333;
        position: relative;
        display: inline-block;
    }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: #0066cc;
        }

.section-content {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
}

.intro-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: flex-start;
}

.intro-image {
    flex: 0 0 30%;
    /* max-width: 30%; */
    min-width: 250px;
}

    .intro-image img {
        width: 100%;
        height: auto;
        border-radius: 10px;
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    }

.intro-text {
    flex: 2;
    min-width: 300px;
}

    .intro-text p {
        line-height: 1.8;
        color: #666;
        margin-bottom: 15px;
    }

.culture-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.culture-item {
    flex: 1;
    min-width: 250px;
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

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

.culture-icon {
    font-size: 3em;
    margin-bottom: 20px;
}

.culture-item h3 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: #333;
}

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

.responsibility-content p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}

.responsibility-content h3 {
    font-size: 1.2em;
    color: #333;
    margin-top: 30px;
    margin-bottom: 15px;
}

@media (max-width: 768px) {
    .about-banner {
        /* height: 300px; */
    }

        .about-banner .banner-content {
            padding: 30px 40px;
            /* max-width: 90%; */
        }

            .about-banner .banner-content h1 {
                font-size: 2em;
            }

            .about-banner .banner-content p {
                font-size: 1.1em;
            }

    .about-container {
        padding: 30px 15px;
    }

    .about-nav ul {
        flex-direction: column;
    }

    .about-nav a {
        border-bottom: none;
        border-left: 3px solid transparent;
        text-align: left;
        padding: 15px 20px;
    }

        .about-nav a:hover,
        .about-nav a.active {
            border-left-color: #0066cc;
            border-bottom-color: transparent;
        }

    .section-content {
        padding: 20px;
    }

    .intro-content {
        flex-direction: column;
    }

    .culture-content {
        flex-direction: column;
    }
}