/* =========================
   Banner 区域
   ========================= */
.banner-section {
    width: 100%;
}

.banner {
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

.banner-content {
    max-width: 1200px;
    padding: 0 20px;
}

.banner h1 {
    font-size: 42px;
    margin-bottom: 8px;
    color: #ffffff;
    text-shadow: 
        0 1px 0 rgba(0,0,0,0.3),
        0 2px 0 rgba(0,0,0,0.25),
        0 3px 0 rgba(0,0,0,0.2),
        0 4px 0 rgba(0,0,0,0.15),
        0 5px 10px rgba(0,0,0,0.3),
        0 10px 20px rgba(0,0,0,0.2);
    font-weight: 700;
    letter-spacing: 2px;
}

/* ID 选择器 - 最高优先级 */
#about-title {
    font-size: 42px !important;
    color: #ffffff !important;
    text-shadow: 
        0 1px 0 rgba(0,0,0,0.3),
        0 2px 0 rgba(0,0,0,0.25),
        0 3px 0 rgba(0,0,0,0.2),
        0 4px 0 rgba(0,0,0,0.15),
        0 5px 10px rgba(0,0,0,0.3),
        0 10px 20px rgba(0,0,0,0.2) !important;
    font-weight: 700 !important;
    letter-spacing: 2px !important;
    margin-bottom: 8px !important;
}

.banner p {
    font-size: 14px;
    color: #ccd3e0;
    margin: 0;
}

/* =========================
   关于我们页面卡片样式
   ========================= */

.about-content .card {
    text-align: left;
    background: #f7f9fb;      /* ✅ 浅灰背景 */
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,.05);
    border-left: 4px solid #00d4ff; /* ✅ 品牌蓝 */
}

/* 标题：黑色 */
.about-content .card h3 {
    color: #222222;           /* ✅ 黑色标题 */
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* 正文：深灰 */
.about-content .card p {
    color: #444444;           /* ✅ 深灰文字 */
    font-size: 16px;
    line-height: 1.8;
}

/* ======================================
   响应式媒体查询
   ====================================== */

/* 平板适配 */
@media (max-width: 1024px) {
    .banner h1,
    #about-title {
        font-size: 36px !important;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .banner {
        height: 140px;
    }

    .banner h1,
    #about-title {
        font-size: 28px !important;
    }

    .banner p {
        font-size: 13px;
    }

    .about-content .card {
        padding: 30px 20px;
    }

    .about-content .card h3 {
        font-size: 18px;
    }

    .about-content .card p {
        font-size: 15px;
        line-height: 1.7;
    }
}

/* 小屏手机适配 */
@media (max-width: 480px) {
    .banner {
        height: 120px;
    }

    .banner h1,
    #about-title {
        font-size: 24px !important;
    }

    .about-content .card {
        padding: 24px 16px;
    }

    .about-content .card h3 {
        font-size: 17px;
    }

    .about-content .card p {
        font-size: 14px;
        line-height: 1.6;
    }
}