/**
 * 沁园汝瓷 - 关于页面样式 (about.html)
 * 基于设计稿精确实现
 */

/* ==================== 页面横幅 ==================== */
.about-banner {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    margin-top: 0;
}

.about-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.about-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.about-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 150px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-banner-content h1 {
    font-family: var(--font-family-serif);
    font-size: 70px;
    font-weight: var(--font-weight-semibold);
    color: #15464E;
    margin-bottom: 25px;
    letter-spacing: 6px;
}

.about-banner-content p {
    font-size: 24px;
    color: #15464E;
    line-height: 1.8;
    margin: 0 auto;
}

/* ==================== 品牌信息区块 ==================== */
.brand-section {
    padding-bottom: 100px;
}

.brand-section.first {
    padding-top: 60px;
}

.brand-block {
    width: 1200px;
    max-width: 100%;
    margin: 0 auto;
}

.brand-block h2 {
    font-family: var(--font-family-serif);
    font-size: 36px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 15px;
    text-align: left;
}

.brand-divider {
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    margin-bottom: 25px;
}

.brand-highlight {
    font-size: 24px;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    line-height: 1.8;
    margin-bottom: 15px;
}

.brand-desc {
    font-size: 18px;
    color: #5D5F60;
    line-height: 1.8;
}

/* ==================== 响应式设计 ==================== */

/* 平板设备 (992px以下) */
@media (max-width: 992px) {
    .about-banner {
        height: 500px;
    }

    .about-banner-content {
        padding-top: 120px;
    }

    .about-banner-content h1 {
        font-size: 42px;
    }

    .about-banner-content p {
        font-size: 16px;
    }

    .brand-section {
        padding: 60px 0;
    }

    .brand-block {
        padding: 0 40px;
    }
    .brand-block h2 {
        font-size: 26px;
    }

    .brand-highlight {
        font-size: 15px;
    }

    .brand-desc {
        font-size: 13px;
    }
}

/* 手机设备 (768px以下) */
@media (max-width: 768px) {
    .about-banner {
        height: 400px;
    }

    .about-banner-content {
        padding-top: 100px;
    }

    .about-banner-content h1 {
        font-size: 32px;
    }

    .about-banner-content p {
        font-size: 14px;
        padding: 0 20px;
    }

    .brand-section {
        padding: 50px 0;
    }

    .brand-block {
        padding: 0 30px;
    }
    .brand-block h2 {
        font-size: 22px;
    }

    .brand-divider {
        width: 35px;
    }

    .brand-highlight {
        font-size: 14px;
    }

    .brand-desc {
        font-size: 13px;
    }
}

/* 小屏手机 (480px以下) */
@media (max-width: 480px) {
    .about-banner {
        height: 350px;
    }

    .about-banner-content h1 {
        font-size: 26px;
    }

    .brand-section {
        padding: 40px 0;
    }

    .brand-block {
        padding: 0 20px;
    }
    .brand-block h2 {
        font-size: 20px;
    }

    .brand-highlight {
        font-size: 13px;
    }

    .brand-desc {
        font-size: 12px;
    }
}

@media (max-width: 320px) {
    .about-banner { height: 280px; }
    .about-banner-content { padding-top: 60px; }
    .about-banner-content h1 { font-size: 22px; letter-spacing: 3px; margin-bottom: 12px; }
    .about-banner-content p { font-size: 13px; line-height: 1.6; }
    .brand-section { padding: 30px 0; }
    .brand-block { padding: 0 15px; }
    .brand-block h2 { font-size: 18px; margin-bottom: 10px; }
    .brand-highlight { font-size: 12px; line-height: 1.6; }
    .brand-desc { font-size: 11px; line-height: 1.6; }
}