/* ==================== 全局基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
}
html, body {
    width: 100%;
    overflow-x: hidden;
    color: #333;
    background: #f5f7fa;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}
a:hover {
    color: #009966;
}
ul, ol {
    list-style: none;
}
img {
    max-width: 100%;
    display: block;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ==================== 头部导航样式 ==================== */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 999;
}
.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo {
    font-size: 24px;
    font-weight: bold;
    color: #009966;
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo span {
    font-size: 14px;
    color: #666;
    font-weight: normal;
}
.nav {
    display: flex;
    gap: 30px;
}
.nav a {
    font-size: 16px;
    padding: 10px 0;
    position: relative;
}
.nav a.active,
.nav a:hover {
    color: #009966;
}

/* ==================== SEO 面包屑导航 ==================== */
.breadcrumb {
    padding: 15px 0;
    background: #fff;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    color: #666;
}
.breadcrumb a {
    color: #666;
}
.breadcrumb a:hover {
    color: #009966;
}
.breadcrumb span {
    margin: 0 8px;
    color: #999;
}

/* ==================== 唯一H1主标题 ==================== */
.main-title {
    text-align: center;
    font-size: 36px;
    color: #222;
    margin: 20px 0;
    padding: 0 15px;
    line-height: 1.4;
}

/* ==================== Hero轮播样式 ==================== */
.hero-slider {
    position: relative;
    width: 100%;
    height: 550px;
    overflow: hidden;
}
.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}
.slider-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    z-index: 1;
}
.slider-item.active {
    opacity: 1;
    z-index: 2;
}
.slider-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.slider-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    z-index: 3;
}
.slider-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
}
.slider-text p {
    font-size: 18px;
}
.slider-text a {
    color: #fff;
    text-decoration: underline;
}
.slider-text a:hover {
    color: #009966;
}
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(0,0,0,0.3);
    color: #fff;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
}
.slider-btn:hover {
    background: #009966;
}
.prev {
    left: 30px;
}
.next {
    right: 30px;
}
.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}
.dot {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}
.dot.active {
    background: #009966;
}

/* ==================== 通用板块标题 ==================== */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 32px;
    color: #222;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}
.section-title p {
    color: #666;
    font-size: 16px;
}

/* ==================== 核心优势板块 ==================== */
.advantage {
    padding: 80px 0;
    background: #fff;
}
.advantage-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}
.advantage-item {
    flex: 1;
    min-width: 250px;
    padding: 30px;
    background: #f9f9f9;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}
.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}
.advantage-item h3 {
    font-size: 20px;
    color: #009966;
    margin-bottom: 15px;
}
.advantage-item p {
    color: #666;
    line-height: 1.8;
}

/* ==================== 产品板块 ==================== */
.product {
    padding: 80px 0;
}
.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}
.product-item {
    flex: 1;
    min-width: 280px;
    padding: 40px 30px;
    background: #fff;
    border-radius: 8px;
    border-left: 4px solid #009966;
}
.product-item h3 {
    font-size: 22px;
    color: #222;
    margin-bottom: 15px;
}
.product-item p {
    color: #666;
    line-height: 1.8;
}

/* ==================== 案例板块 ==================== */
.case {
    padding: 80px 0;
    background: #fff;
}
.case-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}
.case-item {
    flex: 1;
    min-width: 280px;
    padding: 25px;
    background: #f5f7fa;
    border-radius: 8px;
    text-align: center;
}
.case-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}
.case-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* ==================== 服务流程板块 ==================== */
.service {
    padding: 80px 0;
    background: #fff;
}

/* ==================== SEO内链板块 ==================== */
.link-section {
    padding: 40px 0;
    background: #f5f7fa;
    text-align: center;
}
.link-section p {
    color: #666;
    font-size: 16px;
}
.link-section a {
    margin: 0 8px;
    color: #009966;
}

/* ==================== 站群专属页脚 ==================== */
.footer-wrapper {
    width: 100%;
    background: #222;
    color: #fff;
    padding: 30px 0 15px;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #444;
}
.footer-links h4 {
    color: #009966;
    font-size: 16px;
    margin-bottom: 10px;
    text-align: center;
}
.footer-links ul {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}
.footer-links a {
    color: #ccc;
    font-size: 14px;
}
.footer-links a:hover {
    color: #009966;
}
.footer-copyright {
    text-align: center;
    color: #aaa;
    font-size: 14px;
    line-height: 1.8;
}

/* ==================== 响应式适配（移动端） ==================== */
@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }
}
@media (max-width: 768px) {
    .nav-wrap {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
        gap: 15px;
    }
    .nav {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero-slider {
        height: 400px;
    }
    .slider-text h2 {
        font-size: 24px;
    }
    .main-title {
        font-size: 24px;
    }
    .section-title h2 {
        font-size: 24px;
    }
    .advantage-list,
    .product-list,
    .case-list {
        flex-direction: column;
    }
    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        text-align: center;
    }
    .slider-btn {
        width: 40px;
        height: 40px;
        line-height: 40px;
    }
    .prev {
        left: 15px;
    }
    .next {
        right: 15px;
    }
}
@media (max-width: 480px) {
    .slider-text h1 {
        font-size: 22px;
    }
}