/* ===== 联系我们 Banner（与首页 banner 同宽高） ===== */
.contact-banner {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}
.contact-banner__img,
.contact-banner__img img {
    width: 100%;
    height: 100%;
}
.contact-banner__img img {
    object-fit: cover;
    display: block;
}

/* ===== 响应式：移动端 banner 高度 ===== */
@media (max-width: 991.98px) {
    .contact-banner {
        height: 480px;
    }
}

/* ===== IP 护肤课堂 / 语粉故事 ===== */
.contact-courses {
    padding: 50px 0 60px;
    background: #fff;
}
.course-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 36px;
}
.course-tab {
    appearance: none;
    -webkit-appearance: none;
    border: 1px solid var(--color-primary);
    background: #fff;
    color: var(--color-primary);
    font-size: 16px;
    padding: 10px 38px;
    cursor: pointer;
    transition: background .2s, color .2s;
}
.course-tab:first-child { border-radius: var(--radius-pill) 0 0 var(--radius-pill); }
.course-tab:last-child  { border-radius: 0 var(--radius-pill) var(--radius-pill) 0; border-left: none; }
.course-tab.is-active {
    background: var(--color-primary);
    color: #fff;
}

.course-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.course-card {
    display: block;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    color: inherit;
    padding: 24px 0;
    transition: opacity .2s;
}
.course-card:hover {
    opacity: .9;
}
.course-card__img {
    width: 100%;
    height: 420px;
    overflow: hidden;
}
.course-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.course-card__body {
    padding: 20px 0 0;
}
.course-card__title {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    font-weight: 600;
    text-align: right;
    margin: 0 0 14px;
}
.course-card__time {
    font-size: 13px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
}
.course-empty {
    text-align: center;
    color: var(--color-text-secondary);
    padding: 60px 0;
}

/* ===== 响应式：卡片图片高度 ===== */
@media (max-width: 991.98px) {
    .course-card__img { height: 320px; }
}
@media (max-width: 575.98px) {
    .course-card__img { height: 220px; }
    .course-tab { padding: 8px 24px; font-size: 14px; }
}

/* ===== 详情页 ===== */
.contact-detail {
    padding: 50px 0 70px;
    background: #fff;
}
.contact-detail__title {
    font-size: 26px;
    line-height: 1.5;
    color: var(--color-text);
    font-weight: 700;
    text-align: center;
    margin: 0 0 14px;
}
.contact-detail__time {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 36px;
}
.contact-detail__content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.9;
    color: #444;
}
.contact-detail__content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 16px auto;
    border-radius: 6px;
}
.contact-detail__content p { margin: 0 0 16px; }
.contact-detail__back {
    text-align: center;
    margin-top: 40px;
}
.contact-detail__back a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 14px;
}
.contact-detail__back a:hover { opacity: .8; }

@media (max-width: 991.98px) {
    .contact-detail__title { font-size: 22px; }
}