/* --- 1. 全局变量与基础设置 --- */
:root {
    --hz-orange: #ec682e;       /* 标准橙色 */
    --hz-orange-dark: #d3541c;  /* 深橙色 (Hover) */
    --hz-text-main: #333333;    /* 主要文字 */
    --hz-text-sub: #666666;     /* 次要文字 */
    --hz-bg-light: #f9f9f9;     /* 浅灰背景 */
    --hz-border: #e0e0e0;       /* 边框颜色 */
}

.hz-online-wrapper {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--hz-text-main);
    line-height: 1.6;
    background-color: #ffffff;
    max-width: 100%;
    margin: 0 auto;
}

/* 通用按钮 */
.hz-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--hz-orange);
    color: #fff;
    font-weight: 700;
    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);
    border-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 (首屏) --- */
.hz-hero {
    padding: 100px 20px;
    text-align: center;
    background: radial-gradient(circle at center, #fffbf9 0%, #ffffff 100%);
    position: relative;
    border-bottom: 1px solid #eee;
}

.hz-hero-tag {
    color: var(--hz-orange);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 20px;
    display: block;
}

.hz-hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--hz-text-main);
    line-height: 1.2;
}

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

/* --- 3. Intro Features (特性图标) --- */
.hz-intro-section { padding: 60px 20px; background-color: #fff; }
.hz-intro-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; max-width: 1200px; margin: 0 auto;
}
.hz-intro-item { text-align: center; padding: 20px; }
.hz-intro-icon {
    font-size: 40px; color: var(--hz-orange); margin-bottom: 15px; display: block;
}
.hz-intro-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.hz-intro-text { font-size: 14px; color: var(--hz-text-sub); }

/* --- 4. Product Highlight (交替布局) --- */
.hz-product-section { padding: 80px 20px; background-color: var(--hz-bg-light); }
.hz-section-head { text-align: center; font-size: 36px; font-weight: 800; margin-bottom: 60px; }

.hz-prod-block {
    display: flex; align-items: center; gap: 60px; max-width: 1200px; margin: 0 auto 80px auto;
    background: #fff; padding: 40px; border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid #eee;
}

/* 反向布局 class */
.hz-prod-block.reverse { flex-direction: row-reverse; }

.hz-prod-img { flex: 1; min-width: 300px; position: relative; }
.hz-prod-img img { width: 100%; border-radius: 8px; transition: transform 0.3s; }
.hz-prod-block:hover .hz-prod-img img { transform: scale(1.02); }

.hz-prod-content { flex: 1; }
.hz-prod-badge {
    background: var(--hz-orange); color: #fff; padding: 5px 10px; border-radius: 4px; 
    font-size: 12px; font-weight: 700; display: inline-block; margin-bottom: 15px;
}
/* 不同颜色的badge区分型号 */
.badge-thermal { background: #d32f2f; } /* 红色强调热成像 */
.badge-ptz { background: #00796b; } /* 青色强调云台 */

.hz-prod-name { font-size: 32px; font-weight: 800; margin-bottom: 20px; color: var(--hz-text-main); }
.hz-prod-desc { font-size: 16px; color: var(--hz-text-sub); margin-bottom: 25px; }

.hz-feat-list { list-style: none; padding: 0; margin-bottom: 30px; }
.hz-feat-list li {
    margin-bottom: 10px; font-size: 15px; display: flex; align-items: center; color: var(--hz-text-main);
}
.hz-feat-list li::before {
    content: '✓'; color: var(--hz-orange); margin-right: 12px; font-weight: bold; font-size: 18px;
}

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

.hz-app-img { height: 180px; background: #eee; overflow: hidden; }
.hz-app-img img { width: 100%; height: 100%; object-fit: cover; }
.hz-app-body { padding: 25px; }
.hz-app-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.hz-app-text { font-size: 14px; color: var(--hz-text-sub); }

/* --- 响应式 --- */
@media screen and (max-width: 900px) {
    .hz-hero-title { font-size: 36px; }
    .hz-intro-grid, .hz-app-grid { grid-template-columns: 1fr; }
    .hz-prod-block, .hz-prod-block.reverse { flex-direction: column; text-align: left; }
    .hz-prod-img { width: 100%; }
}