/* ========================================
   我们的建站技术栈 - 展示样式
   ======================================== */
.tech-showcase-section {
    padding: 80px 0;
    background-color: #ffffff;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.2rem;
    color: #212529;
    margin-bottom: 10px;
}

.section-header p {
    font-size: 1.1rem;
    color: #6c757d;
}

/* 技术网格 */
.tech-grid {
    display: grid;
    /* 自动适配：屏幕宽则 3 列，窄则 2 列，再窄则 1 列 */
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

/* 单个技术卡片 */
.tech-card {
    background: #f8f9fa;
    padding: 35px 30px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    text-align: center;
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,.08);
    border-color: #007bff;
}

/* 图标 */
.tech-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px; /* 圆角方形，比圆形更现代 */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 20px;
}

/* 标题 */
.tech-card h3 {
    font-size: 1.2rem;
    color: #212529;
    margin-bottom: 5px;
}

/* 副标题（技术名词） */
.tech-card p {
    font-size: 1rem;
    color: #007bff;
    font-weight: 600;
    margin-bottom: 10px;
}

/* 描述 */
.tech-desc {
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.6;
    display: block;
}
/* ================= 流程 - 纵向时间轴 CSS ================= */
.process-section.style-vertical {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 50px auto 0;
    padding-left: 30px; /* 给左边留出空间 */
}

/* 中间的竖线 */
.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e0e0e0;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px; /* 关键：加大间距，解决拥挤 */
    padding-left: 40px; /* 关键：加大间距 */
}

/* 左边的圆圈数字 */
.timeline-marker {
    position: absolute;
    left: -15px; /* 调整位置 */
    top: 0;
    width: 32px;
    height: 32px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
    border: 3px solid #fff; /* 白边增加立体感 */
    box-shadow: 0 0 0 1px #007bff; /* 外圈呼应 */
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #333;
}

.timeline-content p {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6; /* 关键：增加行高，呼吸感 */
    margin: 0;
}

/* 响应式：手机端调整 */
@media (max-width: 768px) {
    .timeline {
        padding-left: 20px;
    }
    .timeline-item {
        padding-left: 30px;
        margin-bottom: 30px;
    }
    .timeline-marker {
        left: -18px;
        width: 28px;
        height: 28px;
    }
}
/* ========================================
   网站建设 FAQ 手风琴样式
   ======================================== */
.faq-section {
    padding: 80px 0;
    background-color: #ffffff;
}

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

.section-header h2 {
    font-size: 2.2rem;
    color: #212529;
    margin-bottom: 10px;
}

.section-header p {
    font-size: 1.1rem;
    color: #6c757d;
}

/* 手风琴容器 */
.faq-accordion {
    border-radius: 8px;
    overflow: hidden;
}

/* 单个 FAQ 项目 */
.faq-item {
    border: 1px solid #e9ecef;
    margin-bottom: -1px;
    background: #f8f9fa;
}

/* 问题按钮 */
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background-color: #f8f9fa;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: #212529;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #ffffff;
}

.faq-question .icon {
    font-size: 1.5rem;
    color: #007bff;
    transition: transform 0.3s ease;
}

/* 激活状态下的图标旋转 */
.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
}

/* 答案区域 */
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background-color: #f8f9fa;
}

.faq-answer p {
    margin-bottom: 10px;
    line-height: 1.7;
    color: #495057;
}

.faq-answer ul {
    padding-left: 20px;
    margin-bottom: 10px;
    color: #495057;
}

.faq-answer li {
    margin-bottom: 5px;
}

/* 激活状态下展开 */
.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 20px 25px;
}
/* 父级进入视口后，子项依次显示 */
.scroll-animate-parent.is-active .faq-item {
    opacity: 1;
    transform: translateY(0);
}

.scroll-animate-parent.is-active .faq-item:nth-child(1) { transition-delay: 0.1s; }
.scroll-animate-parent.is-active .faq-item:nth-child(2) { transition-delay: 0.2s; }
.scroll-animate-parent.is-active .faq-item:nth-child(3) { transition-delay: 0.3s; }
.scroll-animate-parent.is-active .faq-item:nth-child(4) { transition-delay: 0.4s; }
.scroll-animate-parent.is-active .faq-item:nth-child(5) { transition-delay: 0.5s; }
.scroll-animate-parent.is-active .faq-item:nth-child(6) { transition-delay: 0.6s; }