/* --- 变量定义 --- */
:root {
    --dts-orange: #ff6b35;    /* 温度/热力橙 */
    --dts-blue: #003366;      /* 品牌蓝 */
    --bg-light: #f9f9f9;
}

.hz-dts-wrapper {
    /* 正文：Open Sans Regular (400) */
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
    width: 100%;


/* 主标题：严格执行 Poppins-Medium (500) */
.hz-dts-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important; /* 强制覆盖 */
    font-size: 52px !important;
    margin-bottom: 25px;
    line-height: 1.2;
}

/* 副标题：严格执行 Poppins-SemiBold (600) */
.hz-dts-subtitle {
    font-family: 'Poppins', sans-serif;
    font-weight: 600 !important; /* 强制覆盖 */
    font-size: 20px !important;
    max-width: 800px;
    margin: 0 auto 30px auto;
    opacity: 0.95;
}

/* --- 2. Feature Grid (特性网格) --- */
.hz-feature-section { padding: 80px 20px; background: #fff; }

/* 章节标题：Poppins-Medium (500) */
.hz-section-head {
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important;
    font-size: 38px !important;
    color: #003366;
    margin-bottom: 50px;
    text-align: center !important;
}

.hz-dts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.hz-dts-card {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 35px 30px;
    transition: transform 0.3s;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}
.hz-dts-card:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }

.hz-card-icon { font-size: 48px; margin-bottom: 20px; display: block; }

/* 卡片标题：Poppins-Medium (500) */
.hz-card-head { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important;
    font-size: 24px !important; 
    color: var(--dts-blue); 
    margin-bottom: 15px; 
    margin-top: 0; 
}

/* 卡片正文：Open Sans Regular (400) */
.hz-card-text { 
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    font-size: 15px; 
    color: #666; 
    line-height: 1.6; 
}

/* --- 3. Applications Grid (新增: 结合PDF场景) --- */
.hz-app-section { padding: 60px 20px; background: #f4f6f9; }
.hz-app-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1000px; margin: 0 auto;
}
.hz-app-item {
    background: #fff; padding: 20px; border-radius: 8px; text-align: center; box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.hz-app-item img { width: 100%; height: 180px; object-fit: cover; border-radius: 6px; margin-bottom: 15px; }

/* 应用标题：Poppins-Medium (500) */
.hz-app-title { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    color: var(--dts-blue); 
    font-size: 18px; 
}

/* --- 4. Specs Table (参数表 - 基于PDF) --- */
.hz-specs-section { padding: 80px 20px; background: #fff; }

.hz-specs-table {
    width: 100%; border-collapse: collapse; max-width: 1000px; margin: 0 auto; background: #fff; box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

/* 表头：Poppins-Medium (500) */
.hz-specs-table th { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    background: var(--dts-blue); 
    color: #fff; 
    padding: 18px; 
    text-align: left; 
    font-size: 16px; 
    width: 40%; 
}

/* 表格正文：Open Sans Regular (400) */
.hz-specs-table td { 
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    padding: 18px; 
    border-bottom: 1px solid #eee; 
    font-size: 16px; 
    color: #333; 
}
.hz-specs-table tr:hover { background-color: #eef6fc; }
.spec-highlight { color: var(--dts-orange); font-weight: 700; }

/* 响应式适配 */
@media screen and (max-width: 900px) {
    .hz-dts-title { font-size: 36px !important; }
    .hz-dts-grid, .hz-app-grid { grid-template-columns: 1fr; }
}