/* ===== ABOUT 下方 list 的左右两列交替布局 ===== */

/* ---------- フェードイン ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- about-row（替代旧 .item） ---------- */
.about .list .about-row {
    padding-bottom: 60px;
    text-align: left;
}

.about-section-header {
    margin-bottom: 25px;
}

.about-row.reverse-header .about-section-header {
    text-align: right;
}

.about-section-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
}

.about-section-subtitle {
    font-size: 16px;
    line-height: 1.5;
    color: #30BBFF;
    margin-top: 4px;

}

/* ---------- 左右行 ---------- */
.about-rowbox {
    display: flex;
    gap: 40px;
    align-items: stretch;
}

.about-rowbox.reverse {
    flex-direction: row-reverse;
}

.about-col-media {
    flex: 1.1;
    min-width: 0;
}

.about-col-media .about-media {
    border-radius: 30px;
    overflow: hidden;
    width: 100%;
    display: block;
    line-height: 0;
}

.about-col-media .about-media img,
.about-col-media .about-media video {
    width: 100%;
    height: auto;
    display: block;
}

.about-col-text {
    flex: 0.9;
    min-width: 0;
    display: flex;
}

/* ---------- 内部滚动文字块 ---------- */
.about-text-block {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
    padding: 6px 4px 6px 0;
}

.about-text-inner {
    height: 100%;
    overflow-y: auto;
    width: 100%;
    scrollbar-width: none;
    -ms-overflow-style: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.about-text-inner::-webkit-scrollbar {
    display: none;
}

.about-text-block.scrolled-end::after {
    opacity: 0;
}

.about-text-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.5;
}

.about-text-title + .about-text-body {
    margin-top: 8px;
}

.about-text-body {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.7;
    color: #cfd8dc;
}

hr.about-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    margin: 18px 0;
}

.about p.about-more-tip,
.about-more-tip {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.6;
    font-weight: 400;
    color: #cfd8dc;
}

/* ---------- 「詳細カスタマイズ」卡片网格容器 ----------
   .stick-customizer .feature-grid / .feature-card 已有样式，
   这里只补一个外层间距 */
.about-cards-wrapper {
    margin-top: 30px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
    .about-section-title {
        font-size: 28px;
    }
    .about-text-title {
        font-size: 16px;
    }
}

@media (max-width: 830px) {
    .about .list .about-row {
        padding-bottom: 40px;
    }
    .about-rowbox,
    .about-rowbox.reverse {
        flex-direction: column;
        gap: 20px;
    }
    .about-row.reverse-header .about-section-header {
        text-align: left;
    }
    .about-text-block {
        height: auto !important;
        overflow: visible;
        padding: 0;
    }
    .about-text-inner {
        height: auto;
        overflow: visible;
    }
    .about-section-title {
        font-size: 24px;
    }
    .about-section-subtitle {
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .about .list .about-row {
        padding-bottom: 30px;
    }
    .about-section-title {
        font-size: 20px;
    }
    .about-section-subtitle {
        font-size: 13px;
    }
    .about-text-title {
        font-size: 15px;
    }
    .about-text-body {
        font-size: 13px;
    }
    .about-col-media .about-media {
        border-radius: 20px;
    }
    hr.about-divider {
        margin: 14px 0;
    }
    .about-cards-wrapper {
        margin-top: 20px;
    }
}