/**
 * 导师 FAQ（Instructor FAQ）
 * 对应 beauty_faq.html .faq-section 区块
 */

/* ========== 容器 ========== */
.gt-ifaq {
	max-width: 900px;
	margin: 0 auto;
	padding: 6rem 5%;
	box-sizing: border-box;
}

/* ========== 头部 ========== */
.gt-ifaq__header {
	text-align: center;
	margin-bottom: 4rem;
}

.gt-ifaq__subtitle {
	font-size: 0.8rem;
	color: var(--gt-ifaq-accent, #c9a77c);
	text-transform: uppercase;
	letter-spacing: 3px;
	margin-bottom: 1rem;
	display: block;
}

.gt-ifaq__title {
	font-family: 'Playfair Display', serif;
	font-weight: 400;
	font-size: 2.2rem;
	color: var(--gt-ifaq-primary, #1a1a1a);
	margin: 0 0 1rem;
}

.gt-ifaq__desc {
	color: var(--gt-ifaq-text-light, #888);
	font-size: 0.95rem;
	max-width: 550px;
	margin: 0 auto;
	line-height: 1.8;
}

/* ========== 分类 Tabs ========== */
.gt-ifaq__tabs {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	margin-bottom: 4rem;
	flex-wrap: wrap;
}

.gt-ifaq__tab {
	display: inline-block;
	padding: 0.7rem 1.8rem;
	border: 1px solid #ddd;
	background: transparent;
	color: var(--gt-ifaq-text-light, #888);
	font-family: 'Montserrat', sans-serif;
	font-size: 0.85rem;
	letter-spacing: 1px;
	cursor: pointer;
	transition: all 0.3s;
	user-select: none;
}

.gt-ifaq__tab:hover {
	border-color: var(--gt-ifaq-accent, #c9a77c);
	color: var(--gt-ifaq-accent, #c9a77c);
}

.gt-ifaq__tab.is-active {
	background: var(--gt-ifaq-primary, #1a1a1a);
	border-color: var(--gt-ifaq-primary, #1a1a1a);
	color: #fff;
}

/* ========== 单条 FAQ ========== */
.gt-ifaq__item {
	border-bottom: 1px solid #e8e5e1;
	overflow: hidden;
}

.gt-ifaq__item[data-hidden="true"] {
	display: none;
}

/* 问题行 */
.gt-ifaq__question {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1.8rem 0;
	cursor: pointer;
	user-select: none;
	transition: color 0.3s;
}

.gt-ifaq__question:hover {
	color: var(--gt-ifaq-accent, #c9a77c);
}

.gt-ifaq__question h3 {
	font-family: 'Montserrat', sans-serif;
	font-size: 1rem;
	font-weight: 500;
	letter-spacing: 0.5px;
	flex: 1;
	padding-right: 2rem;
	margin: 0;
}

/* + / × 图标 */
.gt-ifaq__icon {
	width: 36px;
	height: 36px;
	border: 1px solid #ddd;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	transition: all 0.3s;
	position: relative;
}

.gt-ifaq__icon::before,
.gt-ifaq__icon::after {
	content: '';
	position: absolute;
	background: var(--gt-ifaq-primary, #333);
	transition: all 0.3s;
}

.gt-ifaq__icon::before {
	width: 12px;
	height: 1px;
}

.gt-ifaq__icon::after {
	width: 1px;
	height: 12px;
}

.gt-ifaq__item.is-open .gt-ifaq__icon {
	border-color: var(--gt-ifaq-accent, #c9a77c);
	transform: rotate(45deg);
}

.gt-ifaq__item.is-open .gt-ifaq__icon::before,
.gt-ifaq__item.is-open .gt-ifaq__icon::after {
	background: var(--gt-ifaq-accent, #c9a77c);
}

/* 答案区 */
.gt-ifaq__answer {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.4s ease;
}

.gt-ifaq__answer-inner {
	padding-bottom: 2rem;
	color: var(--gt-ifaq-text-light, #888);
	font-size: 0.95rem;
	line-height: 1.9;
}

.gt-ifaq__answer-inner strong {
	color: var(--gt-ifaq-primary, #333);
}

.gt-ifaq__answer-inner ul {
	padding-left: 1.2rem;
	margin: 0.8rem 0;
}

.gt-ifaq__answer-inner li {
	margin-bottom: 0.5rem;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
	.gt-ifaq {
		padding: 4rem 5%;
	}
	.gt-ifaq__header {
		margin-bottom: 2.5rem;
	}
	.gt-ifaq__tabs {
		margin-bottom: 2.5rem;
		flex-wrap: nowrap;
		overflow-x: auto;
		overflow-y: hidden;
		-webkit-overflow-scrolling: touch;
		scrollbar-width: none;
		justify-content: flex-start;
		padding-bottom: 4px;
	}
	.gt-ifaq__tabs::-webkit-scrollbar {
		display: none;
	}
	.gt-ifaq__tab {
		white-space: nowrap;
		flex-shrink: 0;
	}
	.gt-ifaq__title {
		font-size: 1.8rem;
	}
}