/* ===========================
   全局基础样式
=========================== */
body {
    margin: 0;
    font-family: "Microsoft YaHei", Arial, sans-serif;
    background: #fff;
    color: #333;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* ===========================
   Header
=========================== */
.ao-header {
    width: 100%;
    background: #0a1a2a;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 999;
}

.ao-header-container {
    max-width: 1280px;
    margin: auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ao-logo a {
    font-size: 20px;
    font-weight: bold;
    color: #00e0ff;
}

.ao-nav-list {
    display: flex;
    gap: 28px;
}

.ao-nav-list li a {
    color: #fff;
    font-size: 16px;
    transition: 0.3s;
}

.ao-nav-list li a:hover {
    color: #00e0ff;
}

/* 移动端菜单按钮 */
.ao-nav-toggle {
    display: none;
    font-size: 26px;
    cursor: pointer;
}

/* ===========================
   Footer
=========================== */
.ao-footer {
    background: #0a1a2a;
    color: #fff;
    padding: 40px 20px 20px;
}

.ao-footer-container {
    max-width: 1280px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}

.ao-footer-col h3 {
    margin-bottom: 12px;
    font-size: 18px;
    color: #00e0ff;
}

.ao-footer-col ul li {
    margin-bottom: 8px;
}

.ao-footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #123;
    font-size: 14px;
    opacity: 0.8;
}

/* ===========================
   响应式：Pad
=========================== */
@media (max-width: 992px) {
    .ao-nav-list {
        gap: 18px;
    }

    .ao-footer-container {
        flex-direction: column;
        text-align: left;
    }
}

/* ===========================
   响应式：Mobile
=========================== */
@media (max-width: 768px) {

    .ao-nav-toggle {
        display: block;
        color: #00e0ff;
    }

    .ao-nav-list {
        display: none;
        flex-direction: column;
        background: #0a1a2a;
        padding: 20px;
        gap: 16px;
    }

    .ao-nav-list.ao-nav-open {
        display: flex;
    }

    .ao-footer-container {
        text-align: left;
    }
}
/*通用结束*/
/* ===========================
   基础布局
=========================== */
.ao-home {
    width: 100%;
    overflow: hidden;
}

.ao-container {
    max-width: 1280px;
    margin: auto;
    padding: 40px 20px;
}

.ao-section-title {
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
    color: #0a1a2a;
}

/* ===========================
   Banner
=========================== */
.ao-banner {

    padding: 120px 20px;
    text-align: center;
    color: #000;
}

.ao-banner-content h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

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

/* 按钮 */
.ao-btn-primary,
.ao-btn-secondary {
    display: inline-block;
    padding: 12px 26px;
    border-radius: 6px;
    font-size: 16px;
    transition: 0.3s;
}

.ao-btn-primary {
    background: #00e0ff;
    color: #0a1a2a;
}

.ao-btn-primary:hover {
    background: #0ac7d8;
}

.ao-btn-secondary {
    background: #0a1a2a;
    color: #fff;
}

.ao-btn-secondary:hover {
    background: #123;
}

/* ===========================
   三大核心卖点
=========================== */
.ao-features-grid {
    display: flex;
    gap: 30px;
    justify-content: space-between;
    flex-wrap: wrap;
}

.ao-feature-item {
    flex: 1;
    min-width: 280px;
    background: #f7f9fc;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

/* ===========================
   产品模块
=========================== */
.ao-products-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.ao-product-card {
    flex: 1;
    min-width: 280px;
    background: #eef4ff;
    padding: 30px;
    border-radius: 10px;
}

/* ===========================
   成功案例
=========================== */
.ao-cases-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.ao-case-card {
    flex: 1;
    min-width: 280px;
    background: #f3f3f3;
    padding: 30px;
    border-radius: 10px;
}

/* ===========================
   新闻资讯
=========================== */
.ao-news-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.ao-news-card {
    flex: 1;
    min-width: 280px;
    background: #fff7e6;
    padding: 30px;
    border-radius: 10px;
}

/* ===========================
   CTA
=========================== */
.ao-cta {
    background: #0a1a2a;
    color: #fff;
    text-align: center;
    padding: 60px 20px;
}

.ao-cta h2 {
    font-size: 30px;
    margin-bottom: 20px;
}

.ao-cta p {
    font-size: 18px;
    margin-bottom: 30px;
}

/* ===========================
   响应式：Pad
=========================== */
@media (max-width: 992px) {
    .ao-banner-content h1 {
        font-size: 30px;
    }
}

/* ===========================
   响应式：Mobile
=========================== */
@media (max-width: 768px) {
    .ao-banner {
        padding: 80px 20px;
    }

    .ao-banner-content h1 {
        font-size: 26px;
    }

    .ao-section-title {
        font-size: 24px;
    }
}
.ao-news-card {
    flex: 1;
    min-width: 280px;
    background: #fff7e6;
    padding: 20px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ao-news-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
}

/* 响应式布局 */
.ao-news-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .ao-news-card {
        padding: 16px;
    }
    .ao-news-img {
        border-radius: 6px;
    }
}
/* ===========================
   FAQ 模块基础样式
=========================== */
.ao-faq {
    background: #f7f9fc;
    padding: 60px 20px;
}

.ao-faq-list {
    max-width: 960px;
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* FAQ 每一项 */
.ao-faq-item {
    background: #fff;
    border-radius: 8px;
    border: 1px solid #ddd;
    overflow: hidden;
    transition: 0.3s;
}

/* 使用 details/summary 实现折叠 */
.ao-faq-item summary {
    cursor: pointer;
    padding: 16px 20px;
    font-size: 18px;
    font-weight: bold;
    color: #0a1a2a;
    list-style: none;
}

.ao-faq-item summary::marker {
    display: none;
}

/* 展开时的箭头效果 */
.ao-faq-item summary::after {
    content: "＋";
    float: right;
    font-size: 20px;
    transition: transform 0.3s;
}

.ao-faq-item[open] summary::after {
    content: "－";
    transform: rotate(180deg);
}

/* 折叠内容 */
.ao-faq-item p {
    padding: 0 20px 16px;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    animation: ao-fadeIn 0.3s ease;
}

/* 动画效果 */
@keyframes ao-fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===========================
   响应式布局
=========================== */
@media (max-width: 768px) {
    .ao-faq-list {
        padding: 0 10px;
    }

    .ao-faq-item summary {
        font-size: 16px;
    }

    .ao-faq-item p {
        font-size: 15px;
    }
}