/* TOBA专属样式 - 独立文件（适配rem=100px基准 + 去除白色背景） */
.row {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 24px;
    position: relative;
    overflow: hidden;
}
.row::before {
    display: none; /* 隐藏顶部蓝色线条 */
}

/* TOBA头部样式 */
.toba-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e9f1fc;
}
.toba-header h1 {
    color: #0056b3;
    font-size: 0.4rem; /* 适配100px基准 */
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.header-tag {
    color: #007bff;
    font-size: 0.18rem; /* 适配100px基准 */
    font-weight: 500;
    background: rgba(0, 123, 255, 0.1);
    padding: 6px 20px;
    border-radius: 20px;
    display: inline-block;
}
.header-desc {
    margin-top: 16px;
    color: #495057;
    font-size: 0.16rem; /* 适配100px基准 */
}

/* 图片样式 */
.hero-img {
    width: 100%;
    height: 300px;
    border-radius: 8px;
    object-fit: cover;
    margin: 20px 0;
    box-shadow: 0 4px 12px rgba(0, 68, 158, 0.12);
}
.section-img {
    width: 100%;
    height: 220px;
    border-radius: 8px;
    object-fit: cover;
    margin: 15px 0;
    box-shadow: 0 2px 8px rgba(0, 68, 158, 0.08);
}
.feature-card img {
    width: 100%;
    height: 120px;
    border-radius: 6px;
    object-fit: cover;
    margin-bottom: 12px;
}

/* 章节样式 */
.toba-section {
    margin-bottom: 40px;
}
.toba-section h2 {
    color: #0056b3;
    font-size: 0.28rem; /* 适配100px基准 */
    margin: 30px 0 18px;
    position: relative;
    padding-left: 16px;
}
.toba-section h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 4px;
    height: 24px;
    background: #007bff;
    border-radius: 2px;
}
.toba-section p {
    margin-bottom: 18px;
    font-size: 0.17rem; /* 适配100px基准 */
    color: #343a40;
    line-height: 1.7;
}

/* 高亮框（去除背景/阴影） */
.tech-highlight {
    padding: 24px;
    border-radius: 8px;
    margin: 24px 0;
    border-left: 5px solid #007bff;
}
.tech-highlight strong {
    color: #0056b3;
    font-size: 0.18rem; /* 适配100px基准 */
}

/* 特性网格（去除卡片背景） */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 20px 0;
}
.feature-card {
    background: rgba(82, 196, 120, 0.7) /* 淡紫色背景（低透明度，柔和不刺眼） */
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9f1fc;
    transition: all 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 12px rgba(0, 68, 158, 0.1);
    border-color: #007bff;
}
.feature-card h4 {
    color: #0056b3;
    font-size: 0.18rem; /* 适配100px基准 */
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}
.feature-card h4 i {
    content: "⚡";
    margin-right: 8px;
}
.feature-card p {
    font-size: 0.16rem; /* 适配100px基准 */
    color: #495057;
    margin-bottom: 0;
}

/* 列表样式 */
.scene-list {
    list-style: none;
    margin: 18px 0;
}
.scene-list li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    font-size: 0.17rem; /* 适配100px基准 */
}
.scene-list li::before {
    content: "🚄";
    position: absolute;
    left: 0;
    top: 8px;
    font-size: 0.2rem;
}
.advantage-list {
    list-style: none;
    margin: 18px 0;
}
.advantage-list li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    font-size: 0.17rem; /* 适配100px基准 */
}
.advantage-list li::before {
    content: "✦";
    color: #007bff;
    position: absolute;
    left: 0;
    top: 8px;
    font-weight: bold;
    font-size: 0.2rem;
}

/* TOBA页脚 */
.toba-footer {
    margin-top: 50px;
    text-align: center;
    color: #6c757d;
    font-size: 0.16rem; /* 适配100px基准 */
    padding-top: 24px;
    border-top: 1px solid #e9f1fc;
}
.footer-highlight {
    color: #0056b3;
    font-weight: 600;
}
.footer-desc {
    margin-top: 8px;
    font-size: 0.15rem; /* 适配100px基准 */
}

/* 响应式适配（同步缩小） */
@media (max-width: 768px) {
    .row {
        padding: 30px 15px;
    }
    .hero-img {
        height: 200px;
    }
    .section-img {
        height: 180px;
    }
    .feature-card img {
        height: 100px;
    }
    .toba-header h1 {
        font-size: 0.32rem; /* 适配100px基准 */
    }
    .toba-section h2 {
        font-size: 0.24rem; /* 适配100px基准 */
    }
}