* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-red: #e63946;
    --dark-red: #d62828;
    --light-red: #f8d7da;
    --text-dark: #212529;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 导航栏样式 */
header {
    background-color: var(--primary-red);
    color: var(--white);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
}

    .logo i {
        margin-right: 10px;
        font-size: 28px;
    }


h3.hong {
    font-size: 22px;
    margin-bottom: 15px;
    color: #d62828;
}

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

    .nav-links li {
        margin-left: 30px;
    }

    .nav-links a {
        color: var(--white);
        text-decoration: none;
        font-weight: 500;
        font-size: 16px;
        transition: var(--transition);
        position: relative;
    }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--white);
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

 
.hero {
    background: linear-gradient(rgba(230, 57, 70, 0.9), rgba(230, 57, 70, 0.8)), url('0.jpg') no-repeat center center/cover;
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

    .hero h1 {
        font-size: 48px;
        margin-bottom: 20px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .hero p {
        font-size: 20px;
        max-width: 700px;
        margin: 0 auto 30px;
        text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    }

.btn {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-red);
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    transition: var(--transition);
    border: 2px solid var(--white);
}

    .btn:hover {
        background-color: transparent;
        color: var(--white);
    }

/* 公司简介 */
.about {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

    .section-title h2 {
        font-size: 36px;
        color: var(--primary-red);
        margin-bottom: 15px;
        position: relative;
        display: inline-block;
    }

        .section-title h2::after {
            content: '';
            position: absolute;
            width: 60px;
            height: 3px;
            background-color: var(--primary-red);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }

    .section-title p {
        color: var(--text-light);
        max-width: 700px;
        margin: 0 auto;
        font-size: 18px;
    }

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

    .about-text h3 {
        font-size: 28px;
        margin-bottom: 20px;
        color: var(--dark-red);
    }

    .about-text p {
        margin-bottom: 20px;
        color: var(--text-dark);
        font-size: 16px;
    }

.about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

    .about-image img {
        width: 100%;
        height: auto;
        display: block;
        transition: var(--transition);
    }

    .about-image:hover img {
        transform: scale(1.05);
    }

/* 公司优势 */
.advantages {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-red);
}

    .advantage-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .advantage-card i {
        font-size: 40px;
        color: var(--primary-red);
        margin-bottom: 20px;
    }

    .advantage-card h3 {
        font-size: 22px;
        margin-bottom: 15px;
        color: var(--dark-red);
    }

    .advantage-card p {
        color: var(--text-light);
    }

/* 公司特长 */
.features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

.feature-image {
    height: 200px;
    overflow: hidden;
}

    .feature-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }

.feature-card:hover .feature-image img {
    transform: scale(1.1);
}

.feature-content {
    padding: 25px;
}

    .feature-content h3 {
        font-size: 22px;
        margin-bottom: 15px;
        color: var(--dark-red);
    }

    .feature-content p {
        color: var(--text-light);
    }

/* 新闻动态 */
.news {
    padding: 80px 0;
}

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

.news-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

    .news-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

.news-image {
    height: 200px;
    overflow: hidden;
}

    .news-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 25px;
}

.news-date {
    color: var(--primary-red);
    font-size: 14px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

    .news-date i {
        margin-right: 5px;
    }

.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark-red);
    text-decoration: none !important;
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.news-link {
    color: var(--primary-red);
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

    .news-link:hover {
        color: var(--dark-red);
    }

    .news-link i {
        margin-left: 5px;
        transition: var(--transition);
    }

    .news-link:hover i {
        transform: translateX(5px);
    }

/* 留言区域 */
.contact-form {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

    .form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 600;
        color: var(--text-dark);
    }

    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 12px 15px;
        border: 1px solid #ddd;
        border-radius: 5px;
        font-size: 16px;
        transition: var(--transition);
    }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-red);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
        }

    .form-group textarea {
        resize: vertical;
        min-height: 150px;
    }

.btn-submit {
    background-color: var(--primary-red);
    color: var(--white);
    border: none;
    padding: 14px 30px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    display: block;
    margin: 0 auto;
}

    .btn-submit:hover {
        background-color: var(--dark-red);
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
    }

/* 页脚 */
footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--primary-red);
}

.footer-column p,
.footer-column li {
    margin-bottom: 10px;
    color: #ddd;
}

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

.footer-column a {
    color: #ddd;
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

    .social-links a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        color: var(--white);
        transition: var(--transition);
    }

        .social-links a:hover {
            background-color: var(--primary-red);
            transform: translateY(-5px);
        }

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 70px 0;
    }

        .hero h1 {
            font-size: 30px;
        }

    .section-title h2 {
        font-size: 28px;
    }

    .form-container {
        padding: 30px 20px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 24px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .advantages-grid,
    .features-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
}