/* --- 1. 全局变量 --- */
:root {
    --hz-orange: #ec682e;       /* 赫兹橙 */
    --hz-orange-dark: #d3541c;  /* 深橙 Hover */
    --text-main: #333333;       /* 深黑字 */
    --text-sub: #666666;        /* 浅灰字 */
    --bg-white: #ffffff;        /* 纯白 */
    --bg-light: #f8f9fa;        /* 极浅灰 */
    --border-color: #eeeeee;
}

.hz-robot-wrapper {
    /* 正文：Open Sans Regular */
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    max-width: 100%;
    margin: 0 auto;
}

/* 按钮样式：使用副标题字体 Poppins-SemiBold */
.hz-btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--hz-orange);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-weight: 600; /* SemiBold */
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: 1px solid var(--hz-orange);
}
.hz-btn:hover {
    background-color: var(--hz-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(236, 104, 46, 0.2);
}
.hz-btn-outline {
    background-color: transparent;
    color: var(--hz-orange);
}
.hz-btn-outline:hover {
    background-color: var(--hz-orange);
    color: #fff;
}

/* --- 2. Hero Section (机器人巡检主题) --- */
.hz-hero {
    padding: 100px 20px;
    text-align: center;
    background: radial-gradient(circle at center, #fffbf9 0%, #ffffff 100%);
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

/* 标签/副标题：Poppins-SemiBold */
.hz-hero-tag {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--hz-orange);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 20px;
    display: block;
}

/* 主标题：Poppins-Medium */
.hz-hero-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-main);
}

.hz-hero-desc {
    font-size: 18px;
    color: var(--text-sub);
    max-width: 800px;
    margin: 0 auto 40px auto;
}

/* --- 3. Integration Benefits (开发者痛点) --- */
.hz-benefit-section {
    padding: 60px 20px;
    background-color: #fff;
}
.hz-benefit-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.hz-benefit-item { text-align: center; padding: 20px; }
.hz-benefit-icon {
    font-size: 36px; color: var(--hz-orange); margin-bottom: 15px; display: block;
}

/* 模块标题：Poppins-Medium */
.hz-benefit-title { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 18px; 
    margin-bottom: 10px; 
}
.hz-benefit-text { font-size: 14px; color: var(--text-sub); }

/* --- 4. Product Matrix (核心产品) --- */
.hz-prod-section {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

/* 章节标题：Poppins-Medium */
.hz-section-head {
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.hz-prod-card {
    display: flex;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    margin: 0 auto 60px auto;
    max-width: 1100px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}
.hz-prod-card:hover {
    transform: translateY(-5px);
    border-color: var(--hz-orange);
}

.hz-prod-img {
    flex: 1;
    min-width: 400px;
    background: #f0f0f0;
    position: relative;
}
.hz-prod-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hz-prod-body {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 徽章/副标题：Poppins-SemiBold */
.hz-prod-badge {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    background: var(--hz-orange);
    color: #fff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    align-self: flex-start;
    margin-bottom: 15px;
}
/* 蓝色Badge区分模组 */
.badge-blue { background: #00796b; }

/* 产品标题：Poppins-Medium */
.hz-prod-title { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 32px; 
    margin-bottom: 15px; 
}
.hz-prod-desc { font-size: 16px; color: var(--text-sub); margin-bottom: 25px; }

.hz-spec-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}
.hz-spec-item {
    font-size: 14px;
    color: var(--text-main);
    display: flex;
    align-items: center;
}
.hz-spec-item::before {
    content: '•';
    color: var(--hz-orange);
    font-size: 20px;
    margin-right: 10px;
    line-height: 0;
}

/* --- 5. Integration Scenarios (应用场景) --- */
.hz-scene-section {
    padding: 80px 20px;
    background-color: #fff;
}
.hz-scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.hz-scene-card {
    text-align: center;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 30px 20px;
    transition: 0.3s;
}
.hz-scene-card:hover {
    border-color: var(--hz-orange);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}
.hz-scene-icon { font-size: 40px; margin-bottom: 20px; display: block; }

/* 场景标题：Poppins-Medium */
.hz-scene-title { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 20px; 
    margin-bottom: 10px; 
}
.hz-scene-text { font-size: 14px; color: var(--text-sub); }

/* --- 响应式 --- */
@media screen and (max-width: 900px) {
    .hz-hero-title { font-size: 36px; }
    .hz-benefit-grid, .hz-scene-grid { grid-template-columns: 1fr; }
    .hz-prod-card { flex-direction: column; }
    .hz-prod-img { min-width: 100%; height: 250px; }
}