/* ==========================================================================
   Homepage sections: heads, bento, tabs, promo, USP, newsletter
   ========================================================================== */

/* ---------- Section heads ---------- */
.bv-kicker .elementor-heading-title {
	color: var(--bv-blue);
	font-size: 13px !important;
	font-weight: 700;
	letter-spacing: .24em;
	text-transform: uppercase;
}

.bv-dark .bv-kicker .elementor-heading-title { color: var(--bv-cyan); }

.bv-h2 .elementor-heading-title {
	font-size: clamp(32px, 4.6vw, 64px) !important;
	line-height: 1.04 !important;
	letter-spacing: -.04em;
}

/* ---------- Category bento ---------- */
.bv-bento {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	grid-auto-rows: 250px;
	gap: 18px;
}

.bv-bento__tile {
	position: relative;
	overflow: hidden;
	border-radius: 26px;
	background: var(--bv-navy-2);
	color: #fff;
	isolation: isolate;
}

.bv-bento__tile--1 { grid-column: span 2; grid-row: span 2; }
.bv-bento__tile--6 { grid-column: 1 / -1; }

.bv-bento__tile img {
	position: absolute;
	inset: 0;
	z-index: -2;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 1.4s var(--bv-ease), filter .6s;
}

.bv-bento__shade {
	position: absolute;
	inset: 0;
	z-index: -1;
	background: linear-gradient(180deg, transparent 30%, rgba(4, 11, 36, .9)), radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(44, 99, 255, .45), transparent 60%);
	transition: opacity .5s;
}

.bv-bento__txt {
	position: absolute;
	left: 24px;
	right: 24px;
	bottom: 22px;
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.bv-bento__txt em { color: var(--bv-cyan); font-style: normal; font-size: 13px; font-weight: 600; letter-spacing: .1em; }
.bv-bento__txt strong { font-size: clamp(22px, 2.4vw, 34px); line-height: 1.1; letter-spacing: -.02em; }
.bv-bento__tile--1 .bv-bento__txt strong { font-size: clamp(32px, 4vw, 56px); }

.bv-bento__txt b {
	max-height: 0;
	overflow: hidden;
	font-size: 14px;
	font-weight: 600;
	opacity: 0;
	transition: max-height .5s var(--bv-ease), opacity .5s, margin .5s;
}

.bv-bento__tile:hover { color: #fff; }
.bv-bento__tile:hover img { transform: scale(1.1); filter: saturate(1.2); }
.bv-bento__tile:hover .bv-bento__txt b { max-height: 30px; margin-top: 6px; opacity: 1; }

/* ---------- Product tabs ---------- */
.bv-tabs__nav {
	position: relative;
	display: flex;
	gap: 4px;
	width: max-content;
	max-width: 100%;
	margin: 0 auto 40px;
	padding: 6px;
	overflow-x: auto;
	border-radius: 999px;
	background: #fff;
	box-shadow: var(--bv-shadow);
	scrollbar-width: none;
}

.bv-tabs__ink {
	position: absolute;
	top: 6px;
	bottom: 6px;
	left: 0;
	z-index: 0;
	border-radius: 999px;
	background: var(--bv-grad);
	box-shadow: var(--bv-glow);
	transition: transform .55s var(--bv-ease), width .55s var(--bv-ease);
}

.bv-tabs__btn {
	position: relative;
	z-index: 1;
	flex: none;
	padding: 12px 24px;
	border: 0;
	border-radius: 999px;
	background: none;
	color: var(--bv-muted);
	font-weight: 600;
	white-space: nowrap;
	cursor: pointer;
	transition: color .35s;
}

.bv-tabs__btn:hover,
.bv-tabs__btn:focus { background: none; color: var(--bv-ink); }
.bv-tabs__btn.is-active,
.bv-tabs__btn.is-active:hover { color: #fff; background: var(--bv-grad); }

/* 墨条就位后由它负责高亮底色（在此之前按钮自带底色，避免白字白底） */
.bv-tabs__nav.is-ink-ready .bv-tabs__btn.is-active { background: none; }
.bv-tabs__nav:not(.is-ink-ready) .bv-tabs__ink { opacity: 0; }

.bv-tabs__pane { display: none; text-align: center; }
.bv-tabs__pane.is-active { display: block; animation: bv-pane-in .7s var(--bv-ease); }
.bv-tabs__pane .woocommerce { text-align: left; }

@keyframes bv-pane-in { from { opacity: 0; transform: translateY(24px); } }

/* ---------- Promo banner ---------- */
.bv-promo {
	position: relative;
	overflow: hidden;
	border-radius: 36px;
	background: var(--bv-grad-dark);
	color: #fff;
	isolation: isolate;
}

.bv-promo::before {
	content: "";
	position: absolute;
	inset: -50%;
	z-index: -1;
	background: conic-gradient(from 0deg, transparent 0 60%, rgba(25, 194, 255, .35) 75%, transparent 90%);
	animation: bv-rotate 10s linear infinite;
}

.bv-promo::after {
	content: "";
	position: absolute;
	inset: 2px;
	z-index: -1;
	border-radius: 34px;
	background: var(--bv-grad-dark);
}

.bv-promo .elementor-widget-image img {
	border-radius: 28px;
	transform: rotate(-4deg);
	box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8);
	transition: transform .9s var(--bv-ease);
}

.bv-promo:hover .elementor-widget-image img { transform: rotate(0deg) scale(1.03); }

.bv-countdown { display: flex; gap: 12px; margin: 6px 0 10px; }
.bv-countdown div { display: flex; flex-direction: column; align-items: center; min-width: 74px; padding: 12px 8px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 16px; background: rgba(255, 255, 255, .06); }
.bv-countdown strong { font-size: 30px; line-height: 1; font-variant-numeric: tabular-nums; }
.bv-countdown span { margin-top: 6px; color: rgba(255, 255, 255, .55); font-size: 12px; }

/* ---------- USP cards ---------- */
.bv-usp .elementor-widget-icon-box > .elementor-widget-container,
.bv-usp.elementor-widget-icon-box > .elementor-widget-container {
	height: 100%;
	padding: 30px 26px;
	border-radius: 24px;
	background: #fff;
	box-shadow: 0 1px 0 rgba(10, 20, 51, .04);
	transition: transform .5s var(--bv-ease), box-shadow .5s;
}

.bv-usp.elementor-widget-icon-box:hover > .elementor-widget-container { transform: translateY(-8px); box-shadow: 0 30px 60px -28px rgba(44, 99, 255, .5); }

.bv-usp .elementor-icon {
	display: grid !important;
	place-items: center;
	width: 60px;
	height: 60px;
	border-radius: 18px;
	background: var(--bv-grad);
	color: #fff !important;
	font-size: 24px !important;
	box-shadow: var(--bv-glow);
	transition: transform .6s var(--bv-ease);
}

.bv-usp .elementor-icon svg { fill: #fff; width: 26px; height: 26px; }
.bv-usp:hover .elementor-icon { transform: rotate(-10deg) scale(1.08); }
.bv-usp .elementor-icon-box-title { margin: 18px 0 6px !important; font-size: 18px; }
.bv-usp .elementor-icon-box-description { color: var(--bv-muted); font-size: 14px; }

/* ---------- Newsletter ---------- */
.bv-news {
	position: relative;
	overflow: hidden;
	border-radius: 36px;
	background: var(--bv-grad);
	color: #fff;
}

.bv-news::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(255, 255, 255, .25) 1px, transparent 1px);
	background-size: 22px 22px;
	mask-image: linear-gradient(90deg, transparent, #000);
	pointer-events: none;
}

.bv-news .elementor-heading-title { color: #fff; }
.bv-news p { color: rgba(255, 255, 255, .85); }

.bv-news .elementor-form .elementor-field-group { margin-bottom: 0; }
.bv-news .elementor-form input.elementor-field {
	min-height: 58px;
	padding: 0 24px;
	border: 0;
	border-radius: 999px 0 0 999px;
	background: #fff;
	color: var(--bv-ink);
}

.bv-news .elementor-form .elementor-button {
	min-height: 58px;
	border-radius: 0 999px 999px 0;
	background: var(--bv-navy);
	color: #fff;
	font-weight: 700;
	transition: background .3s;
}

.bv-news .elementor-form .elementor-button:hover { background: #000; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
	.bv-bento { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 220px; }
}

@media (max-width: 767px) {
	.bv-bento { grid-template-columns: 1fr 1fr; grid-auto-rows: 170px; gap: 12px; }
	.bv-bento__tile--1 { grid-column: span 2; grid-row: span 1; }
	.bv-bento__tile { border-radius: 18px; }
	.bv-bento__txt { left: 14px; right: 14px; bottom: 12px; }
	.bv-tabs__nav { margin-inline: 0; }
	.bv-promo, .bv-news { border-radius: 24px; }
	.bv-news .elementor-form input.elementor-field,
	.bv-news .elementor-form .elementor-button { border-radius: 999px; }
	.bv-news .elementor-form .elementor-field-group { margin-bottom: 10px; }
}