/* --- 基础样式 --- */
.security-about-module {
    background-color: #ffffff;
    padding: 60px 4%;
    color: #1a1a1a;
    font-family: 'Poppins', sans-serif;
    overflow: hidden;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* --- 标签样式 --- */
.tag-row-about, .tag-row-benefits {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
}

.tag-text {
    font-size: 11px;
    font-weight: 800;
    color: #003366;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    background-color: #e8f0fe;
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
}

.arrow-icon { font-size: 12px; margin-right: 4px; color: #3498db; }
.star-icon { color: #3498db; font-size: 14px; }

.section-title { font-size: clamp(32px, 4vw, 48px); font-weight: 900; margin: 0 0 20px 0; line-height: 1.1; color: #003366; }
.accent { color: #3498db; }

/* About 布局 */
.about-section { 
    display: grid; 
    grid-template-columns: 1fr 2fr; 
    gap: clamp(30px, 5vw, 80px); 
    margin-bottom: 60px; 
}

.side-text { font-size: 14px; color: #666; line-height: 1.5; margin-bottom: 25px; }

.btn-learn { 
    display: inline-block; 
    padding: 10px 25px; 
    border: 1px solid #003366; 
    border-radius: 30px; 
    text-decoration: none; 
    color: #003366; 
    font-weight: bold; 
    font-size: 14px; 
    transition: all 0.3s; 
}

.btn-learn:hover { background: #003366; color: #fff; text-decoration: none;}

.intro-headline { font-size: clamp(20px, 2.5vw, 28px); margin-bottom: 20px; line-height: 1.3; color: #1a1a1a; font-weight: 700; }
.intro-p { color: #555; line-height: 1.6; margin-bottom: 30px; font-size: 15px; }

.stats-row { display: flex; flex-wrap: wrap; gap: 30px 60px; }
.stat-num { display: block; font-size: clamp(28px, 3vw, 42px); font-weight: 900; color: #003366; }
.stat-desc { font-size: 13px; color: #888; }

.feature-image { margin-bottom: 60px; }
.feature-image img { width: 100%; border-radius: 8px; display: block; box-shadow: 0 10px 30px rgba(0,0,0,0.08); }

/* Benefits 区域 */
.benefits-intro { font-size: clamp(20px, 2.5vw, 28px); font-weight: bold; margin-bottom: 15px; max-width: 650px; color: #1a1a1a; }
.benefits-sub-desc { max-width: 850px; color: #666; line-height: 1.6; margin-bottom: 40px; font-size: 15px; }

.benefits-grid { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 0; 
    margin-top: 40px; 
}
.benefit-item { padding: 0 30px; border-left: 1px solid #eee; }
.benefit-item:first-child { padding-left: 0; border-left: none; }

.icon-box { width: 40px; height: 40px; margin-bottom: 20px; display: flex; align-items: center; }
.icon-box img { max-width: 100%; max-height: 100%; object-fit: contain; }

.benefit-item h4 { font-size: 17px; font-weight: 800; color: #003366; margin-bottom: 10px; line-height: 1.3; }
.benefit-item p { font-size: 13px; color: #777; line-height: 1.5; }

/* --- 移动端兼容性与高度优化 --- */
@media (max-width: 1024px) {
    .about-section { grid-template-columns: 1fr; gap: 30px; }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .benefit-item { border-left: none; padding: 20px; border-bottom: 1px solid #eee; }
    .benefit-item:nth-child(even) { border-left: 1px solid #eee; }
    .benefit-item:first-child { border-left: none; }
}

@media (max-width: 600px) {
    .security-about-module { padding: 40px 5%; }
    
    .benefits-grid { 
        grid-template-columns: repeat(2, 1fr);
        margin-top: 20px;
        gap: 15px;
    }
    
    .benefit-item { 
        padding: 10px !important; 
        border: none !important;
        margin-bottom: 0; 
    }
    
    .icon-box { 
        width: 32px; 
        height: 32px; 
        margin-bottom: 12px;
    }
    
    .benefit-item h4 { 
        font-size: 14px;
        margin-bottom: 6px; 
    }
    
    .benefit-item p { 
        font-size: 12px;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .stats-row { gap: 20px; }
    .stat-num { font-size: 24px; }
    
    .benefits-sub-desc { margin-bottom: 30px; }
}

@media (max-width: 380px) {
    .benefits-grid { grid-template-columns: 1fr; }
    .benefit-item { padding: 15px 0 !important; border-bottom: 1px solid #eee !important; }
}