/* --- 全局变量 --- */
:root {
    --das-blue: #003366;      /* 品牌深蓝 */
    --das-light: #00b8d4;     /* 激光/光纤青色 */
    --das-bg: #f8f9fa;
    --text-dark: #333;
    --text-grey: #666;
}

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

/* --- 1. Hero Section (首屏) --- */
.hz-das-hero {
    background: linear-gradient(135deg, #001220 0%, #003366 100%);
    color: #fff;
    padding: 100px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    position: relative;
    overflow: hidden;
}

/* 背景光纤效果装饰 */
.hz-das-hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10%;
    width: 120%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--das-light), transparent);
    box-shadow: 0 0 20px var(--das-light);
    transform: rotate(-5deg);
    opacity: 0.6;
}

.hz-hero-content { flex: 1; max-width: 600px; z-index: 2; }

/* 标签：Poppins-SemiBold (600) */
.hz-hero-tag {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--das-light);
    border: 1px solid var(--das-light);
    padding: 4px 10px;
    font-size: 12px;
    text-transform: uppercase;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 20px;
}

/* 主标题：Poppins-Medium (500) */
.hz-hero-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important; /* 强制 Medium */
    font-size: 42px;
    margin: 0 0 20px 0;
    line-height: 1.2;
    background: linear-gradient(to right, #fff, #a5f3fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 描述：Open Sans Regular (400) */
.hz-hero-desc { 
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    font-size: 18px; 
    color: rgba(255,255,255,0.9); 
    margin-bottom: 35px; 
}

.hz-hero-img { flex: 1; max-width: 500px; z-index: 2; }
.hz-hero-img img { width: 100%; border-radius: 8px; box-shadow: 0 0 40px rgba(0, 184, 212, 0.2); border: 1px solid rgba(255,255,255,0.1); }

/* --- 2. Principle Section (原理) --- */
.hz-principle-section { padding: 80px 20px; text-align: center; background: #fff; }

/* 章节标题：Poppins-Medium (500) */
.hz-section-title { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important;
    font-size: 32px; 
    color: var(--das-blue); 
    margin-bottom: 15px; 
}
.hz-section-desc { max-width: 800px; margin: 0 auto 50px auto; color: var(--text-grey); }

.hz-principle-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
    text-align: left;
}

.hz-principle-box {
    background: var(--das-bg);
    padding: 30px;
    border-radius: 12px;
    border-left: 5px solid var(--das-blue);
}

/* 模块小标题：Poppins-Medium (500) */
.hz-principle-box h3 { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important;
    margin-top: 0; 
    color: var(--das-blue); 
}

/* --- 3. AI & Software Features (软件功能) --- */
.hz-software-section { background: #f0f4f8; padding: 80px 20px; }
.hz-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.hz-feat-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.hz-feat-card:hover { transform: translateY(-5px); }

.hz-feat-icon {
    font-size: 32px;
    color: var(--das-blue);
    background: #e3f2fd;
    padding: 15px;
    border-radius: 50%;
    min-width: 60px;
    text-align: center;
}

/* 功能标题：Poppins-Medium (500) */
.hz-feat-text h4 { 
    font-family: 'Poppins', sans-serif;
    font-weight: 500 !important;
    margin: 0 0 10px 0; 
    font-size: 18px; 
    color: var(--das-blue); 
}
.hz-feat-text p { margin: 0; font-size: 14px; color: var(--text-grey); }

/* --- AI Pattern Badges (AI识别) --- */
.hz-ai-patterns {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* 徽章：Poppins-SemiBold (600) */
.hz-ai-badge {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    background: #e0f7fa;
    color: #006064;
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 4px;
}

/* --- 4. Applications (应用场景) --- */
.hz-app-section { padding: 80px 20px; background: #fff; }
.hz-app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.hz-app-card {
    position: relative;
    height: 200px;
    border-radius: 8px;
    overflow: hidden;
    color: #fff;
    display: flex;
    align-items: flex-end;
    padding: 20px;
    background-size: cover;
    background-position: center;
}
/* 遮罩层 */
.hz-app-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
}

/* 应用标题：Poppins-SemiBold (600) */
.hz-app-card span { 
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    position: relative; 
    z-index: 2; 
    font-size: 18px; 
}

/* --- 5. Specifications Table (参数表) --- */
.hz-specs-section { padding: 80px 20px; background: var(--das-bg); }
.hz-table-container { overflow-x: auto; max-width: 1000px; margin: 0 auto; box-shadow: 0 5px 20px rgba(0,0,0,0.05); border-radius: 8px; }
.hz-specs-table { width: 100%; border-collapse: collapse; background: #fff; min-width: 600px; }

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

/* 表格正文：Open Sans Regular (400) */
.hz-specs-table td { 
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    padding: 15px 18px; 
    border-bottom: 1px solid #eee; 
    color: var(--text-dark); 
}
.hz-specs-table tr:hover { background: #f0f9ff; }

/* 重点参数高亮：Poppins-SemiBold (600) */
.spec-highlight { 
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--das-light); 
} 
.spec-header-highlight { background: #004080; }

/* --- 响应式 --- */
@media screen and (max-width: 900px) {
    .hz-das-hero { flex-direction: column; text-align: center; }
    .hz-principle-grid, .hz-features-grid, .hz-app-grid { grid-template-columns: 1fr; }
    .hz-app-card { height: 150px; }
}