/* ------------------------------------------------------------------
   导航 / 产品列表 / 产品详情 / 表单 组件样式（浅底色 + 绿色主色）
   ------------------------------------------------------------------ */

/* ---------------- 页眉导航 ---------------- */
.bk-nav {
	display: flex;
	align-items: center;
}

.bk-nav__panel {
	display: block;
}

.bk-nav__list {
	display: flex;
	align-items: center;
	gap: 34px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.bk-nav__list li {
	position: relative;
}

.bk-nav__list a {
	display: inline-block;
	padding: 10px 0;
	font-size: 16px;
	font-weight: 600;
	color: var(--bk-ink);
	text-decoration: none;
	transition: color 0.3s var(--bk-ease);
}

.bk-nav__list > li > a::after {
	content: "";
	display: block;
	width: 0;
	height: 2px;
	margin-top: 4px;
	background: var(--bk-green);
	transition: width 0.3s var(--bk-ease);
}

.bk-nav__list > li:hover > a::after,
.bk-nav__list > .current-menu-item > a::after,
.bk-nav__list > .current_page_item > a::after,
.bk-nav__list > .current-menu-parent > a::after {
	width: 100%;
}

/* 页眉内的导航：右对齐、间距舒展、下划线贴页眉底部出现 */
.bk-header .elementor-widget-shortcode,
.bk-header .elementor-widget-shortcode > .elementor-shortcode,
.bk-header .elementor-widget-shortcode > .elementor-widget-container,
.bk-header .bk-nav,
.bk-header .bk-nav__panel,
.bk-header .bk-nav__list,
.bk-header .bk-nav__list > li {
	height: 100%;
}

.bk-header .elementor-widget-shortcode {
	margin: 0;
}

.bk-header .bk-nav {
	width: 100%;
	justify-content: flex-end;
}

.bk-header .bk-nav__list {
	gap: 0;
	justify-content: flex-end;
}

.bk-header .bk-nav__list > li {
	display: flex;
	align-items: stretch;
}

.bk-header .bk-nav__list > li > a {
	display: flex;
	align-items: center;
	height: 100%;
	padding: 0 23px;
	font-size: 16px;
	letter-spacing: 0.01em;
}

.bk-header .bk-nav__list > li > a::after {
	position: absolute;
	left: 23px;
	right: 23px;
	bottom: 0;
	width: auto;
	height: 3px;
	margin-top: 0;
	transform: scaleX(0);
	transform-origin: center;
	transition: transform 0.3s var(--bk-ease);
}

.bk-header .bk-nav__list > li:hover > a::after,
.bk-header .bk-nav__list > .current-menu-item > a::after,
.bk-header .bk-nav__list > .current_page_item > a::after,
.bk-header .bk-nav__list > .current-menu-parent > a::after {
	width: auto;
	transform: scaleX(1);
}

.bk-header .bk-nav__list .sub-menu {
	top: 100%;
	left: 12px;
}

/* 行动按钮前的分隔线 */
.bk-header .bk-header-cta {
	position: relative;
	display: flex;
	align-items: center;
}

.bk-header .bk-header-cta::before {
	content: "";
	position: absolute;
	left: 0;
	top: 50%;
	width: 1px;
	height: 34px;
	background: var(--bk-line);
	transform: translateY(-50%);
}

.bk-header .bk-header-cta .elementor-widget-wrap {
	padding-left: 34px;
}

.bk-nav__list a:hover,
.bk-nav__list .current-menu-item > a,
.bk-nav__list .current_page_item > a,
.bk-nav__list .current-menu-parent > a {
	color: var(--bk-green);
}

.bk-nav__list .sub-menu {
	position: absolute;
	top: 100%;
	left: -18px;
	z-index: 60;
	display: none;
	min-width: 280px;
	margin: 0;
	padding: 12px 0;
	list-style: none;
	background: #ffffff;
	border-top: 3px solid var(--bk-green);
	box-shadow: 0 18px 40px rgba(17, 17, 17, 0.12);
}

.bk-nav__list .sub-menu a {
	display: block;
	padding: 11px 22px;
	font-size: 15px;
	font-weight: 500;
	color: var(--bk-body);
}

.bk-nav__list .sub-menu a::after {
	display: none;
}

.bk-nav__list .sub-menu a:hover {
	background: var(--bk-bg-alt);
	color: var(--bk-green);
}

.bk-nav__list li:hover > .sub-menu,
.bk-nav__list li:focus-within > .sub-menu {
	display: block;
}

.bk-nav__toggle {
	display: none;
	align-items: center;
	gap: 10px;
	padding: 10px 18px;
	font-size: 15px;
	font-weight: 600;
	color: var(--bk-ink);
	background: #ffffff;
	border: 1px solid var(--bk-line);
	border-radius: 999px;
	cursor: pointer;
}

.bk-nav__bars,
.bk-nav__bars::before,
.bk-nav__bars::after {
	display: block;
	width: 18px;
	height: 2px;
	background: var(--bk-ink);
	border-radius: 2px;
}

.bk-nav__bars {
	position: relative;
}

.bk-nav__bars::before,
.bk-nav__bars::after {
	content: "";
	position: absolute;
	left: 0;
}

.bk-nav__bars::before {
	top: -6px;
}

.bk-nav__bars::after {
	top: 6px;
}

/* 页脚菜单（深色底） */
.bk-footer-menu .bk-nav__panel {
	display: block;
}

.bk-footer-menu .bk-nav__list {
	flex-direction: column;
	align-items: flex-start;
	gap: 0;
}

.bk-footer-menu .bk-nav__list a {
	padding: 8px 0;
	font-size: 15px;
	font-weight: 400;
	color: rgba(255, 255, 255, 0.66);
}

.bk-footer-menu .bk-nav__list > li > a::after {
	display: none;
}

.bk-footer-menu .bk-nav__list a:hover {
	color: #ffffff;
}

.bk-footer-menu .bk-nav__toggle {
	display: none;
}

/* ---------------- 页脚 ---------------- */
.bk-footer {
	background: var(--bk-dark);
	color: rgba(255, 255, 255, 0.72);
}

.bk-footer h3 {
	position: relative;
	margin: 0 0 26px;
	padding-bottom: 16px;
	font-size: 17px;
	color: #ffffff;
}

.bk-footer h3::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 26px;
	height: 3px;
	background: var(--bk-green);
}

.bk-footer a {
	color: rgba(255, 255, 255, 0.72);
}

.bk-footer a:hover {
	color: #ffffff;
}

.bk-footer-bottom {
	background: #0b0d0e;
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	color: rgba(255, 255, 255, 0.5);
}

/* ---------------- 面包屑 ---------------- */
.bk-breadcrumb {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	padding: 26px 0 0;
	font-size: 13.5px;
	color: var(--bk-muted);
}

.bk-breadcrumb a {
	color: var(--bk-muted);
	text-decoration: none;
}

.bk-breadcrumb a:hover {
	color: var(--bk-green);
}

.bk-breadcrumb--light,
.bk-breadcrumb--light a {
	color: rgba(255, 255, 255, 0.7);
}

.bk-breadcrumb--light {
	padding-top: 0;
}

.bk-breadcrumb--light a:hover,
.bk-breadcrumb--light span[aria-current] {
	color: #ffffff;
}

/* ---------------- 产品列表 ---------------- */
.bk-product-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 28px;
}

.bk-product-grid--cols-2 {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bk-product-grid--cols-4 {
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bk-product-card {
	display: flex;
	flex-direction: column;
	background: #ffffff;
	border: 1px solid var(--bk-line);
	transition: border-color 0.35s var(--bk-ease), box-shadow 0.35s var(--bk-ease), transform 0.35s var(--bk-ease);
}

.bk-product-card:hover {
	border-color: var(--bk-green);
	box-shadow: var(--bk-shadow);
	transform: translateY(-4px);
}

.bk-product-card__media {
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1 / 1;
	padding: 26px;
	background: var(--bk-bg-alt);
	border-bottom: 1px solid var(--bk-line);
}

.bk-product-card__media img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	display: block;
}

.bk-product-card__placeholder {
	display: block;
	width: 100%;
	height: 100%;
	background: repeating-linear-gradient(45deg, #f2f4f5, #f2f4f5 12px, #e9edee 12px, #e9edee 24px);
}

.bk-product-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	padding: 22px 24px 26px;
}

.bk-product-card__cat {
	margin: 0 0 10px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--bk-green);
}

.bk-product-card__title {
	margin: 0 0 12px;
	font-size: 19px;
	line-height: 1.38;
}

.bk-product-card__title a {
	color: var(--bk-ink);
	text-decoration: none;
}

.bk-product-card__title a:hover {
	color: var(--bk-green);
}

.bk-product-card__desc {
	display: -webkit-box;
	margin: 0 0 20px;
	overflow: hidden;
	font-size: 14.5px;
	line-height: 1.7;
	color: var(--bk-body);
	-webkit-line-clamp: 3;
	line-clamp: 3;
	-webkit-box-orient: vertical;
}

.bk-product-card__more {
	margin-top: auto;
	font-size: 14.5px;
	font-weight: 600;
	color: var(--bk-green);
}

.bk-product-card:hover .bk-product-card__more {
	color: var(--bk-green-deep);
}

/* 分类入口卡片 */
.bk-category-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
}

.bk-category-grid--cols-2 {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bk-category-grid--cols-4 {
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bk-category-tile {
	display: flex;
	flex-direction: column;
	background: #ffffff;
	border: 1px solid var(--bk-line);
	text-decoration: none;
	transition: border-color 0.35s var(--bk-ease), box-shadow 0.35s var(--bk-ease), transform 0.35s var(--bk-ease);
}

.bk-category-tile:hover {
	border-color: var(--bk-green);
	box-shadow: var(--bk-shadow);
	transform: translateY(-4px);
}

.bk-category-tile__media {
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 4 / 3;
	padding: 24px;
	background: var(--bk-bg-alt);
	border-bottom: 1px solid var(--bk-line);
}

.bk-category-tile__media img {
	max-width: 100%;
	max-height: 100%;
	object-fit: contain;
}

.bk-category-tile__placeholder {
	width: 100%;
	height: 100%;
	background: repeating-linear-gradient(45deg, #f2f4f5, #f2f4f5 12px, #e9edee 12px, #e9edee 24px);
}

.bk-category-tile__body {
	display: flex;
	flex-direction: column;
	gap: 8px;
	padding: 22px 24px 26px;
}

.bk-category-tile__title {
	font-size: 19px;
	font-weight: 700;
	line-height: 1.35;
	color: var(--bk-ink);
}

.bk-category-tile__intro {
	font-size: 14.5px;
	line-height: 1.7;
	color: var(--bk-body);
}

.bk-category-tile__meta {
	font-size: 12.5px;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--bk-green);
}

/* ---------------- 产品分类导航条 ---------------- */
.bk-catnav {
	margin-bottom: 40px;
	border-bottom: 1px solid var(--bk-line);
}

.bk-catnav > ul {
	display: flex;
	flex-wrap: wrap;
	gap: 10px 30px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.bk-catnav__item > a {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding-bottom: 14px;
	font-size: 16px;
	font-weight: 600;
	color: var(--bk-ink);
	text-decoration: none;
	border-bottom: 3px solid transparent;
}

.bk-catnav__item.is-current > a,
.bk-catnav__item > a:hover {
	color: var(--bk-green);
	border-bottom-color: var(--bk-green);
}

.bk-catnav__count {
	padding: 2px 8px;
	font-size: 12px;
	color: var(--bk-muted);
	background: var(--bk-bg-alt);
	border-radius: 999px;
}

.bk-catnav__sub {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
	margin: 10px 0 16px;
	padding: 0;
	list-style: none;
	font-size: 14px;
}

.bk-catnav__sub a {
	color: var(--bk-body);
	text-decoration: none;
}

.bk-catnav__sub a:hover,
.bk-catnav__sub .is-current a {
	color: var(--bk-green);
}

/* ---------------- 产品筛选 ---------------- */
.bk-filter {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	align-items: center;
	margin-bottom: 34px;
	padding: 18px 20px;
	background: var(--bk-bg-alt);
	border: 1px solid var(--bk-line);
}

.bk-filter__field {
	display: block;
	margin: 0;
}

.bk-filter select {
	min-width: 200px;
	padding: 12px 16px;
	font-size: 15px;
	color: var(--bk-ink);
	background: #ffffff;
	border: 1px solid var(--bk-line);
}

.bk-filter__submit {
	padding: 12px 30px;
	font-size: 15px;
	font-weight: 600;
	color: #ffffff;
	background: var(--bk-green);
	border: 1px solid var(--bk-green);
	border-radius: 999px;
	cursor: pointer;
	transition: background-color 0.3s var(--bk-ease), color 0.3s var(--bk-ease);
}

.bk-filter__submit:hover {
	background: transparent;
	color: var(--bk-green);
}

/* ---------------- 分页 ---------------- */
.bk-pagination,
.bk-pagination ul {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	justify-content: center;
	margin: 50px 0 0;
	padding: 0;
	list-style: none;
}

.bk-pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 44px;
	height: 44px;
	padding: 0 14px;
	font-weight: 600;
	color: var(--bk-ink);
	text-decoration: none;
	background: #ffffff;
	border: 1px solid var(--bk-line);
}

.bk-pagination .page-numbers.current,
.bk-pagination .page-numbers:hover {
	color: #ffffff;
	background: var(--bk-green);
	border-color: var(--bk-green);
}

.bk-empty {
	padding: 44px;
	text-align: center;
	color: var(--bk-muted);
	background: var(--bk-bg-alt);
}

/* ---------------- 产品详情 ---------------- */
.bk-pdp {
	padding: 12px 0 74px;
}

.bk-pdp__grid {
	display: grid;
	grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
	gap: 56px;
	align-items: start;
}

.bk-pdp__title {
	margin: 0 0 16px;
	font-size: 38px;
	line-height: 1.18;
}

.bk-pdp__short {
	margin: 0 0 22px;
	font-size: 17px;
	line-height: 1.8;
	color: var(--bk-body);
}

.bk-pdp__highlights {
	display: grid;
	gap: 12px;
	margin: 0 0 24px;
	padding: 0;
	list-style: none;
}

.bk-pdp__highlights li {
	position: relative;
	padding-left: 30px;
	font-size: 15.5px;
	color: var(--bk-ink-2);
}

.bk-pdp__highlights li::before {
	content: "";
	position: absolute;
	left: 0;
	top: 5px;
	width: 16px;
	height: 16px;
	background: var(--bk-green-tint);
	border: 2px solid var(--bk-green);
	border-radius: 50%;
}

.bk-pdp__models {
	margin: 0 0 24px;
	font-size: 15px;
	color: var(--bk-body);
}

.bk-pdp__models span {
	display: inline-block;
	margin-right: 8px;
	font-size: 12.5px;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--bk-muted);
}

.bk-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 26px;
}

.bk-trust {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 10px 22px;
	margin: 0;
	padding: 20px 0 0;
	list-style: none;
	border-top: 1px solid var(--bk-line);
}

.bk-trust li {
	position: relative;
	padding-left: 22px;
	font-size: 14px;
	color: var(--bk-body);
}

.bk-trust li::before {
	content: "✓";
	position: absolute;
	left: 0;
	font-weight: 700;
	color: var(--bk-green);
}

.bk-gallery {
	position: sticky;
	top: 20px;
	margin: 0;
}

.bk-gallery__stage {
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1 / 1;
	padding: 30px;
	overflow: hidden;
	background: var(--bk-bg-alt);
	border: 1px solid var(--bk-line);
}

.bk-gallery__main {
	display: block;
	max-width: 100%;
	max-height: 100%;
	width: auto;
	height: auto;
	object-fit: contain;
}

.bk-gallery__thumbs {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 16px;
}

.bk-gallery__thumb {
	width: 82px;
	height: 82px;
	padding: 8px;
	background: #ffffff;
	border: 1px solid var(--bk-line);
	cursor: pointer;
	transition: border-color 0.25s var(--bk-ease);
}

.bk-gallery__thumb img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	display: block;
}

.bk-gallery__thumb.is-active,
.bk-gallery__thumb:hover {
	border-color: var(--bk-green);
}

.bk-gallery--empty {
	aspect-ratio: 1 / 1;
	background: var(--bk-bg-alt);
	border: 1px dashed var(--bk-line);
}

.bk-pdp__details {
	display: grid;
	grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.95fr);
	gap: 48px;
	align-items: start;
}

.bk-feature-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.bk-feature {
	display: flex;
	gap: 14px;
	align-items: flex-start;
	padding: 20px 22px;
	background: #ffffff;
	border: 1px solid var(--bk-line);
	border-top: 3px solid var(--bk-green);
}

.bk-feature__no {
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.08em;
	color: var(--bk-green);
}

.bk-feature__text {
	font-size: 15px;
	line-height: 1.68;
	color: var(--bk-ink-2);
}

.bk-card {
	margin-bottom: 22px;
	padding: 26px;
	background: #ffffff;
	border: 1px solid var(--bk-line);
}

.bk-card__title {
	margin: 0 0 18px;
	padding-bottom: 14px;
	font-size: 17px;
	letter-spacing: 0.02em;
	border-bottom: 1px solid var(--bk-line);
}

.bk-card--dark {
	background: var(--bk-dark);
	border-color: transparent;
	color: rgba(255, 255, 255, 0.8);
}

.bk-card--dark .bk-card__title {
	color: #ffffff;
	border-color: rgba(255, 255, 255, 0.16);
}

.bk-card--dark p {
	margin: 0 0 18px;
	font-size: 14.5px;
	line-height: 1.7;
}

.bk-card__contact {
	display: grid;
	gap: 6px;
	margin: 18px 0 0;
	padding: 16px 0 0;
	list-style: none;
	font-size: 14.5px;
	color: #ffffff;
	border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.bk-specs {
	width: 100%;
	font-size: 14.5px;
	border-collapse: collapse;
}

.bk-specs th,
.bk-specs td {
	padding: 12px 0;
	text-align: left;
	vertical-align: top;
	border-bottom: 1px solid var(--bk-line);
}

.bk-specs th {
	width: 46%;
	font-weight: 600;
	color: var(--bk-ink-2);
}

.bk-specs td {
	color: var(--bk-body);
}

.bk-specs tr:last-child th,
.bk-specs tr:last-child td {
	border-bottom: 0;
}

.bk-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.bk-chips li {
	padding: 8px 16px;
	font-size: 14px;
	line-height: 1.4;
	color: var(--bk-ink-2);
	background: var(--bk-bg-alt);
	border: 1px solid var(--bk-line);
	border-radius: 999px;
}

.bk-chips a {
	color: inherit;
	text-decoration: none;
}

.bk-download {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-weight: 600;
	color: var(--bk-green);
	text-decoration: none;
}

.bk-download::before {
	content: "⤓";
	font-size: 18px;
}

.bk-prose {
	font-size: 16px;
	line-height: 1.85;
	color: var(--bk-body);
}

.bk-prose h2,
.bk-prose h3 {
	margin: 30px 0 12px;
	font-size: 20px;
}

.bk-prose h2:first-child,
.bk-prose h3:first-child {
	margin-top: 0;
}

.bk-prose ul,
.bk-prose ol {
	margin: 0 0 18px;
	padding-left: 22px;
}

.bk-prose li {
	margin-bottom: 8px;
}

.bk-prose p {
	margin: 0 0 15px;
}

/* ---------------- 询盘表单 ---------------- */
.wpcf7 {
	padding: 34px;
	background: #ffffff;
	border: 1px solid var(--bk-line);
	box-shadow: var(--bk-shadow);
}

.wpcf7-form p {
	margin: 0 0 16px;
}

.bk-form-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0 20px;
}

.wpcf7-form label {
	display: block;
	font-size: 14px;
	font-weight: 600;
	color: var(--bk-ink-2);
}

.wpcf7-form input[type="text"],
.wpcf7-form input[type="email"],
.wpcf7-form input[type="tel"],
.wpcf7-form textarea,
.wpcf7-form select {
	width: 100%;
	margin-top: 8px;
	padding: 13px 16px;
	font-size: 15px;
	color: var(--bk-ink);
	background: #ffffff;
	border: 1px solid var(--bk-line);
}

.wpcf7-form input:focus,
.wpcf7-form textarea:focus {
	border-color: var(--bk-green);
}

.wpcf7-form textarea {
	min-height: 150px;
	resize: vertical;
}

.wpcf7-form input[type="submit"] {
	margin-top: 6px;
	padding: 0 36px;
	min-height: 52px;
	font-size: 15px;
	font-weight: 600;
	color: #ffffff;
	background: var(--bk-green);
	border: 1px solid var(--bk-green);
	border-radius: 999px;
	cursor: pointer;
	transition: background-color 0.3s var(--bk-ease), color 0.3s var(--bk-ease);
}

.wpcf7-form input[type="submit"]:hover {
	background: transparent;
	color: var(--bk-green);
}

.wpcf7-form .wpcf7-not-valid-tip {
	margin-top: 6px;
	font-size: 13px;
	color: #c0392b;
}

.wpcf7-form .wpcf7-response-output {
	margin: 18px 0 0;
	padding: 14px 18px;
	font-size: 15px;
	border-radius: var(--bk-radius);
}

.wpcf7-form.invalid .wpcf7-response-output {
	color: #8c1d18;
	background: #fdecea;
	border: 1px solid #f5c2be;
}

.wpcf7-form.sent .wpcf7-response-output,
.wpcf7-form.sent .wpcf7-response-output.wpcf7-display-none {
	display: block;
	color: var(--bk-green-deep);
	background: var(--bk-green-tint);
	border: 1px solid var(--bk-green);
}

.bk-form-note {
	font-size: 13.5px;
	color: var(--bk-muted);
}

/* ---------------- 右侧悬浮联系栏 ---------------- */
.bk-float {
	position: fixed;
	right: 0;
	bottom: 12%;
	z-index: 9000;
	display: grid;
	gap: 1px;
}

.bk-float__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 56px;
	height: 56px;
	color: #ffffff;
	background: var(--bk-green);
	border: 0;
	cursor: pointer;
	transition: background-color 0.3s var(--bk-ease);
}

.bk-float__btn:hover {
	color: #ffffff;
	background: var(--bk-green-dark);
}

.bk-float__btn--top {
	background: #2b3236;
}

.bk-float__btn--top:hover {
	background: #111111;
}

/* ---------------- 响应式 ---------------- */
/* ---------------- 模板用到的深色标题带与区块标题 ---------------- */
.bk-hero {
	position: relative;
	padding: 74px 0 64px;
	background: #141a18;
	color: #ffffff;
}

.bk-hero--slim {
	padding: 56px 0 52px;
}

.bk-hero__title {
	margin: 14px 0 14px;
	font-size: 40px;
	line-height: 1.18;
	color: #ffffff;
}

.bk-hero__text {
	max-width: 74ch;
	margin: 0;
	font-size: 17px;
	line-height: 1.8;
	color: rgba(255, 255, 255, 0.84);
}

.bk-section__head {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 20px;
	margin-bottom: 28px;
}

.bk-section__title {
	margin: 0 0 18px;
	font-size: 28px;
	line-height: 1.3;
	color: var(--bk-ink);
}

.bk-section__block {
	margin-top: 52px;
}

.bk-section--tint {
	background: var(--bk-bg-alt);
}

.bk-link {
	font-weight: 600;
	color: var(--bk-green);
	text-decoration: none;
	white-space: nowrap;
}

.bk-link:hover {
	color: var(--bk-green-deep);
	text-decoration: underline;
}

@media (max-width: 782px) {
	.bk-hero {
		padding: 52px 0 46px;
	}

	.bk-hero__title {
		font-size: 28px;
	}

	.bk-section__head {
		flex-direction: column;
		align-items: flex-start;
	}
}

@media (max-width: 1180px) {
	.bk-product-grid,
	.bk-product-grid--cols-4 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.bk-category-grid,
	.bk-category-grid--cols-4 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.bk-nav {
		position: relative;
	}

	/* 页眉在平板 / 手机保持单行：Logo + 菜单按钮 + 行动按钮 */
	.bk-header > .elementor-container {
		min-height: 84px;
		flex-wrap: nowrap;
		gap: 10px;
	}

	.bk-header .elementor-column {
		width: auto !important;
		flex: 0 0 auto !important;
	}

	.bk-header .elementor-column:first-child {
		flex: 1 1 auto !important;
		min-width: 0;
	}

	.bk-header .elementor-column:first-child img {
		width: 146px !important;
		max-width: 100%;
		height: auto;
	}

	.bk-header .bk-nav {
		justify-content: flex-end;
	}

	.bk-header .bk-nav__toggle {
		width: 48px;
		height: 44px;
		padding: 0;
		font-size: 0;
		justify-content: center;
	}

	.bk-header-cta::before {
		display: none;
	}

	.bk-header .bk-header-cta .elementor-widget-wrap {
		padding-left: 0;
	}

	.bk-header .elementor-button {
		min-height: 44px;
		padding: 0 18px;
		font-size: 13.5px;
	}

	.bk-nav__toggle {
		display: inline-flex;
	}

	.bk-nav__panel {
		position: absolute;
		left: 0;
		top: calc(100% + 12px);
		z-index: 70;
		display: none;
		min-width: 280px;
		padding: 18px 22px;
		background: #ffffff;
		border-top: 3px solid var(--bk-green);
		box-shadow: 0 18px 40px rgba(17, 17, 17, 0.14);
	}

	.bk-nav.is-open .bk-nav__panel {
		display: block;
	}

	.bk-nav__list {
		flex-direction: column;
		align-items: flex-start;
		gap: 0;
	}

	.bk-nav__list .sub-menu {
		position: static;
		display: block;
		min-width: 0;
		padding: 0 0 8px 16px;
		border: 0;
		box-shadow: none;
	}

	.bk-footer-menu .bk-nav__panel {
		position: static;
		display: block;
		min-width: 0;
		padding: 0;
		border: 0;
		box-shadow: none;
	}
}

@media (max-width: 1024px) {
	.bk-pdp__grid {
		grid-template-columns: minmax(0, 1fr);
		gap: 34px;
	}

	.bk-gallery {
		position: static;
	}

	.bk-pdp__details {
		grid-template-columns: minmax(0, 1fr);
		gap: 34px;
	}

	.bk-pdp__title {
		font-size: 30px;
	}
}

@media (max-width: 782px) {
	.bk-product-grid,
	.bk-product-grid--cols-2,
	.bk-product-grid--cols-4,
	.bk-category-grid,
	.bk-category-grid--cols-2,
	.bk-category-grid--cols-4 {
		grid-template-columns: minmax(0, 1fr);
		gap: 20px;
	}

	.bk-feature-grid,
	.bk-trust,
	.bk-form-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.bk-actions .bk-btn {
		width: 100%;
	}

	.bk-gallery__thumb {
		width: 68px;
		height: 68px;
	}

	.wpcf7 {
		padding: 24px;
	}
}