@media (max-width: 900px) {
	.pdp-steps { grid-template-columns: 1fr; }
}

/* FAQ 知识中心（faq 区块）：分类锚点导航 + details/summary 折叠问答 */
.pdp-faq__nav { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin: 30px 0 0; padding: 0; list-style: none; }
.pdp-faq__nav-item {
	display: flex; align-items: center; gap: 9px; padding: 11px 13px;
	background: var(--pdp-white); border: 1px solid var(--pdp-line);
	border-radius: var(--pdp-radius-sm); color: var(--pdp-navy);
	font-size: 13.5px; font-weight: 600; line-height: 1.35; text-decoration: none;
	transition: border-color .18s, box-shadow .18s, color .18s;
}
.pdp-faq__nav-item:hover { border-color: var(--pdp-teal); box-shadow: var(--pdp-shadow); color: var(--pdp-teal-dark); }
.pdp-faq__nav-num {
	flex: 0 0 auto; min-width: 24px; height: 24px; display: inline-flex;
	align-items: center; justify-content: center; border-radius: 6px;
	background: var(--pdp-mist); color: var(--pdp-teal-dark); font-size: 12px; font-weight: 700;
}
.pdp-faq__nav-text { min-width: 0; }
.pdp-faq__cats { margin-top: 42px; }
.pdp-faq__cat { scroll-margin-top: 120px; }
.pdp-faq__cat + .pdp-faq__cat { margin-top: 40px; }
.pdp-faq__cat-title {
	display: flex; align-items: center; gap: 12px; margin: 0 0 14px;
	font-size: 20px; line-height: 1.35; color: var(--pdp-navy); font-weight: 700;
}
.pdp-faq__cat-num {
	flex: 0 0 auto; min-width: 34px; height: 34px; display: inline-flex;
	align-items: center; justify-content: center; border-radius: 9px;
	background: var(--pdp-navy); color: var(--pdp-white); font-size: 14px; font-weight: 700;
}
.pdp-faq__list { display: grid; gap: 10px; }
.pdp-faq__item { background: var(--pdp-white); border: 1px solid var(--pdp-line); border-radius: var(--pdp-radius-sm); overflow: hidden; }
.pdp-faq__q {
	display: flex; align-items: flex-start; gap: 11px; padding: 15px 18px;
	cursor: pointer; list-style: none; font-size: 15px; font-weight: 600;
	line-height: 1.55; color: var(--pdp-navy); transition: color .18s;
}
.pdp-faq__q::-webkit-details-marker { display: none; }
.pdp-faq__q:hover { color: var(--pdp-teal-dark); }
.pdp-faq__mark { position: relative; flex: 0 0 auto; width: 16px; height: 16px; margin-top: 3px; border-radius: 50%; background: var(--pdp-mist); }
.pdp-faq__mark::before, .pdp-faq__mark::after { content: ""; position: absolute; background: var(--pdp-teal-dark); border-radius: 1px; }
.pdp-faq__mark::before { left: 4px; top: 7px; width: 8px; height: 2px; }
.pdp-faq__mark::after { left: 7px; top: 4px; width: 2px; height: 8px; transition: opacity .18s; }
.pdp-faq__item[open] .pdp-faq__mark::after { opacity: 0; }
.pdp-faq__item[open] .pdp-faq__q { color: var(--pdp-teal-dark); }
.pdp-faq__a { padding: 0 18px 17px 45px; }
.pdp-faq__a p { margin: 0; font-size: 14.5px; line-height: 1.85; color: var(--pdp-body); }

@media (max-width: 1024px) {
	.pdp-faq__nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
	.pdp-faq__nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.pdp-faq__cat-title { font-size: 17px; }
	.pdp-faq__q { padding: 14px 15px; font-size: 14.5px; }
	.pdp-faq__a { padding: 0 15px 15px 15px; }
}
/* ==========================================================================
   FAQ Knowledge Base（每问一页升级，2026-10-24）
   .pdp-faqsingle 单问页 / .pdp-faqcat 分类聚合页 / .pdp-faq-hub hub 目录
   ========================================================================== */
.pdp-faqsingle { padding: 6px 0 10px; }
.pdp-faqsingle__wrap { max-width: 860px; }
.pdp-faqsingle__head { text-align: center; margin: 10px 0 26px; }
.pdp-faqsingle__cat {
	display: inline-block; margin: 10px 0 4px; padding: 4px 12px;
	border: 1px solid var(--pdp-line); border-radius: 999px;
	font-size: 13px; color: var(--pdp-teal-dark); background: var(--pdp-white);
}
.pdp-faqsingle__cat:hover { border-color: var(--pdp-teal); color: var(--pdp-teal-dark); }
.pdp-faqsingle__title { margin: 8px 0 0; font-size: clamp(24px, 3vw, 34px); line-height: 1.35; }
/* ② 副标题长问句（为空时不渲染，无需占位样式） */
.pdp-faqsingle__subq {
	max-width: 720px; margin: 12px auto 0; font-size: 16px; line-height: 1.75;
	color: var(--pdp-body); font-weight: 400;
}
/* ①③ 双答案区块标签 */
.pdp-faqsingle__label {
	display: flex; align-items: center; gap: 9px; margin: 0 0 12px;
	font-size: 12.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
	color: var(--pdp-navy);
}
.pdp-faqsingle__label::before {
	content: ""; flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%;
	background: var(--pdp-navy);
}
.pdp-faqsingle__label--editor { color: var(--pdp-teal-dark); }
.pdp-faqsingle__label--editor::before { background: var(--pdp-teal-dark); }
/* ③ PeptideDDP 专人编辑回答：首位高亮区块 */
.pdp-faqsingle__editor {
	background: var(--pdp-white); border: 1px solid var(--pdp-teal);
	border-radius: var(--pdp-radius-sm); padding: 22px 26px; margin-bottom: 18px;
}
.pdp-faqsingle__editor-body p { margin: 0 0 14px; font-size: 15px; line-height: 1.9; color: var(--pdp-body); }
.pdp-faqsingle__editor-body p:last-child { margin-bottom: 0; }
.pdp-faqsingle__editor-body ul, .pdp-faqsingle__editor-body ol { margin: 0 0 14px; padding-left: 22px; }
.pdp-faqsingle__editor-body li { margin-bottom: 6px; font-size: 15px; line-height: 1.85; }
.pdp-faqsingle__editor-body a { color: var(--pdp-teal-dark); }
.pdp-faqsingle__editor-body strong { color: var(--pdp-navy); }
.pdp-faqsingle__body {
	background: var(--pdp-white); border: 1px solid var(--pdp-line);
	border-radius: var(--pdp-radius-sm); padding: 22px 26px;
}
.pdp-faqsingle__body p { margin: 0 0 14px; font-size: 15px; line-height: 1.9; color: var(--pdp-body); }
.pdp-faqsingle__body p:last-child { margin-bottom: 0; }
.pdp-faq__disc { border-top: 1px dashed var(--pdp-line); padding-top: 12px; font-size: 13px !important; }
.pdp-faqsingle__related { margin-top: 26px; }
.pdp-faqsingle__related-title { font-size: 18px; margin: 0 0 12px; }
.pdp-faqsingle__related-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.pdp-faqsingle__related-item a {
	display: flex; justify-content: space-between; align-items: center; gap: 14px;
	background: var(--pdp-white); border: 1px solid var(--pdp-line);
	border-radius: var(--pdp-radius-sm); padding: 13px 16px;
}
.pdp-faqsingle__related-item a:hover { border-color: var(--pdp-teal); box-shadow: var(--pdp-shadow); }
.pdp-faqsingle__related-q { font-size: 14.5px; }
.pdp-faqsingle__related-cat {
	flex: 0 0 auto; font-size: 12px; color: var(--pdp-teal-dark);
	background: var(--pdp-mist); border-radius: 999px; padding: 3px 10px;
}
.pdp-faqsingle__cta { display: flex; gap: 16px; align-items: center; margin-top: 26px; }
.pdp-faqsingle__backlink { font-size: 14px; color: var(--pdp-teal-dark); }
.pdp-faq-hub__list { display: grid; gap: 10px; margin: 12px 0 0; padding: 0; list-style: none; }
.pdp-faq-hub__item a, .pdp-faq-hub__link {
	display: block; background: var(--pdp-white); border: 1px solid var(--pdp-line);
	border-radius: var(--pdp-radius-sm); padding: 13px 16px; font-size: 14.5px; color: inherit;
}
.pdp-faq-hub__item a:hover { border-color: var(--pdp-teal); box-shadow: var(--pdp-shadow); color: var(--pdp-teal-dark); }
.pdp-faqcat__list { margin-top: 8px; }
.pdp-faq-hub-empty {
	margin: 28px 0 10px; padding: 22px 20px;
	background: var(--pdp-mist); border: 1px dashed var(--pdp-line);
	border-radius: var(--pdp-radius-sm); text-align: center;
}
.pdp-faq-hub-empty p { margin: 0; font-size: 15px; line-height: 1.7; color: var(--pdp-body); }
@media (max-width: 768px) {
	.pdp-faqsingle__body { padding: 18px 16px; }
	.pdp-faqsingle__editor { padding: 18px 16px; }
	.pdp-faqsingle__subq { font-size: 15px; }
	.pdp-faqsingle__related-item a { flex-direction: column; align-items: flex-start; gap: 6px; }
}