/* ==========================================================================
   3. 版面：页首、菜单、手机菜单、页脚、WhatsApp 浮动按钮、换页动画、优惠横条
   ========================================================================== */

/* ── 顶部阅读进度线（往下滑越多越长，site.js 设定 --scroll）── */
.rx-progress {
	position: fixed;
	inset: 0 0 auto 0;
	z-index: 120;
	height: 2px;
	background: var(--rx-signal);
	transform-origin: 0 50%;
	transform: scaleX(var(--scroll, 0));
	box-shadow: 0 0 12px rgba(34, 230, 220, 0.6);
	pointer-events: none;
}

/* ── 换页动画：一道光由左扫到右盖住画面，新页面载入后再扫开 ── */
.rx-wipe {
	position: fixed;
	inset: 0;
	z-index: 300;
	pointer-events: none;
	background: var(--rx-void);
	transform: scaleX(0);
	transform-origin: 100% 50%;
}

.rx-wipe span {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	width: 2px;
	background: var(--rx-cyan);
	box-shadow: var(--rx-glow);
}

html.rx-leaving .rx-wipe {
	transform-origin: 0 50%;
	transform: scaleX(1);
	transition: transform 0.45s var(--rx-ease-snap);
}

html.rx-arriving .rx-wipe {
	transform: scaleX(1);
}

html.rx-arrived .rx-wipe {
	transform: scaleX(0);
	transition: transform 0.6s var(--rx-ease-snap);
}

/* ── 优惠横条（页首上面，红色脉冲点）── */
.rx-promo-bar {
	position: relative;
	z-index: 101;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 12px;
	min-height: 38px;
	padding: 8px var(--rx-gutter);
	background: linear-gradient(90deg, rgba(255, 77, 94, 0.14), rgba(43, 107, 255, 0.14));
	border-bottom: 1px solid rgba(255, 77, 94, 0.3);
	font-size: 14px;
	text-align: center;
	overflow: hidden;
}

.rx-promo-bar::after {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.12) 50%, transparent 70%);
	transform: translateX(-100%);
	animation: rx-sheen 4.5s var(--rx-ease) infinite;
}

.rx-promo-bar__pulse {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--rx-ember);
	box-shadow: 0 0 0 0 rgba(255, 77, 94, 0.7);
	animation: rx-pulse 1.8s infinite;
	flex: none;
}

.rx-promo-bar__more {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	color: var(--rx-cyan);
	font-weight: 600;
	white-space: nowrap;
}

.rx-promo-bar__more .rx-icon {
	width: 14px;
	height: 14px;
}

/* ── 页首 ── */
.rx-header {
	position: sticky;
	top: 0;
	z-index: 100;
	height: var(--rx-header);
	transition: transform 0.45s var(--rx-ease), background-color 0.3s, border-color 0.3s;
	border-bottom: 1px solid transparent;
}

/* 往下滑之后：半透明黑底 + 模糊 */
.rx-header.is-solid {
	background: rgba(0, 0, 0, 0.72);
	-webkit-backdrop-filter: saturate(160%) blur(18px);
	backdrop-filter: saturate(160%) blur(18px);
	border-bottom-color: var(--rx-line);
}

/* 继续往下滑：页首藏起来；往上滑又出现 */
.rx-header.is-hidden {
	transform: translateY(-100%);
}

.rx-header__inner {
	display: flex;
	align-items: center;
	gap: 24px;
	height: 100%;
}

.rx-header__brand img {
	width: 132px;
	height: auto;
}

.rx-nav {
	display: flex;
	align-items: center;
	gap: 4px;
	margin-left: auto;
}

.rx-nav__link {
	position: relative;
	padding: 8px 12px;
	color: var(--rx-steel);
	font-size: 14px;
	font-weight: 500;
	transition: color var(--rx-fast);
}

/* 菜单底线：滑鼠移上去由中间往两边展开 */
.rx-nav__link::after {
	content: "";
	position: absolute;
	left: 12px;
	right: 12px;
	bottom: 2px;
	height: 1px;
	background: var(--rx-signal);
	transform: scaleX(0);
	transition: transform 0.35s var(--rx-ease);
}

.rx-nav__link:hover,
.rx-nav__link[aria-current="page"] {
	color: var(--rx-frost);
}

.rx-nav__link:hover::after,
.rx-nav__link[aria-current="page"]::after {
	transform: scaleX(1);
}

.rx-header__actions {
	display: flex;
	align-items: center;
	gap: 10px;
}

.rx-lang {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	border: 1px solid var(--rx-line-strong);
	background: transparent;
	font-family: var(--rx-display);
	font-size: 14px;
	font-weight: 600;
	cursor: pointer;
	clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
	transition: background-color var(--rx-fast), color var(--rx-fast);
}

.rx-lang:hover {
	background: var(--rx-frost);
	color: var(--rx-void);
}

.rx-header__quote {
	--h: 40px;
	font-size: 14px;
}

/* 手机菜单按钮（两条线，打开时变成 X） */
.rx-burger {
	display: none;
	position: relative;
	width: 40px;
	height: 40px;
	border: 0;
	background: transparent;
	cursor: pointer;
}

.rx-burger span {
	position: absolute;
	left: 10px;
	right: 10px;
	height: 1.5px;
	background: currentColor;
	transition: transform 0.4s var(--rx-ease), top 0.4s var(--rx-ease);
}

.rx-burger span:first-child {
	top: 15px;
}

.rx-burger span:last-child {
	top: 24px;
}

.rx-burger[aria-expanded="true"] span:first-child {
	top: 19.5px;
	transform: rotate(45deg);
}

.rx-burger[aria-expanded="true"] span:last-child {
	top: 19.5px;
	transform: rotate(-45deg);
}

/* 全萤幕手机菜单 */
.rx-menu {
	position: fixed;
	inset: var(--rx-header) 0 0 0;
	z-index: 99;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	padding: 32px var(--rx-gutter) calc(32px + env(safe-area-inset-bottom));
	background: rgba(0, 0, 0, 0.96);
	-webkit-backdrop-filter: blur(20px);
	backdrop-filter: blur(20px);
	overflow-y: auto;
}

.rx-menu[hidden] {
	display: none;
}

.rx-menu__nav {
	display: flex;
	flex-direction: column;
}

.rx-menu__nav a {
	padding: 10px 0;
	border-bottom: 1px solid var(--rx-line);
	font-family: var(--rx-display);
	font-size: clamp(30px, 8vw, 44px);
	font-weight: 600;
	opacity: 0;
	transform: translateY(16px);
	transition: opacity 0.5s var(--rx-ease), transform 0.5s var(--rx-ease);
	transition-delay: calc(0.04s * var(--i));
}

.rx-menu__nav a[aria-current="page"] {
	color: var(--rx-cyan);
}

.rx-menu.is-open .rx-menu__nav a {
	opacity: 1;
	transform: none;
}

.rx-menu__foot {
	display: flex;
	flex-direction: column;
	gap: 18px;
	align-items: flex-start;
	margin-top: 32px;
	color: var(--rx-steel);
}

html.rx-menu-open {
	overflow: hidden;
}

@media (max-width: 1020px) {
	.rx-nav,
	.rx-header__quote {
		display: none;
	}

	.rx-burger {
		display: block;
	}

	.rx-header__actions {
		margin-left: auto;
	}
}

@media (max-width: 760px) {
	.rx-header__brand img {
		width: 112px;
	}
}

/* ── 页脚 ── */
.rx-footer {
	position: relative;
	padding-top: 24px;
	border-top: 1px solid var(--rx-line);
	overflow: hidden;
	background:
		radial-gradient(60% 50% at 50% 0%, rgba(43, 107, 255, 0.14), transparent 70%),
		var(--rx-void);
}

.rx-footer__grid {
	display: grid;
	grid-template-columns: 1.4fr 1fr 1fr;
	gap: 40px;
	padding-block: 48px;
}

.rx-footer__brand img {
	width: 150px;
	margin-bottom: 16px;
}

.rx-footer__brand p {
	color: var(--rx-steel);
	max-width: 32ch;
}

.rx-footer__grid h3 {
	margin-bottom: 14px;
	color: var(--rx-dim);
	font-family: var(--rx-font);
	font-size: 13px;
	font-weight: 500;
	letter-spacing: 0.04em;
}

.rx-footer__grid a,
.rx-footer__grid > div > span {
	display: block;
	padding: 5px 0;
	color: var(--rx-steel);
	transition: color var(--rx-fast), transform var(--rx-fast);
}

.rx-footer__grid a:hover {
	color: var(--rx-frost);
	transform: translateX(4px);
}

/* 大字 REFLEX IT：只有外框线，一道光从左扫到右 */
.rx-footer__word {
	position: relative;
	margin-top: 8px;
	font-family: var(--rx-display);
	font-size: clamp(64px, 17.5vw, 260px);
	font-weight: 700;
	line-height: 0.82;
	letter-spacing: -0.02em;
	white-space: nowrap;
	text-align: center;
	color: transparent;
	-webkit-text-stroke: 1px rgba(160, 200, 255, 0.32);
	background: linear-gradient(100deg, transparent 35%, var(--rx-cyan) 50%, transparent 65%) no-repeat;
	background-size: 250% 100%;
	background-position: 150% 0;
	-webkit-background-clip: text;
	background-clip: text;
	user-select: none;
}

.rx-footer__word.is-in {
	animation: rx-word-sweep 3.6s var(--rx-ease) 0.2s infinite;
}

.rx-footer__bottom {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 12px 24px;
	padding: 28px 0 calc(28px + env(safe-area-inset-bottom));
	color: var(--rx-dim);
	font-size: var(--rx-size-small);
}

.rx-footer__legal {
	display: flex;
	gap: 20px;
}

.rx-footer__legal a:hover {
	color: var(--rx-frost);
}

@media (max-width: 760px) {
	.rx-footer__grid {
		grid-template-columns: 1fr;
		gap: 28px;
	}
}

/* ── WhatsApp 浮动按钮（外圈一直往外扩散）── */
.rx-float-wa {
	position: fixed;
	right: max(18px, env(safe-area-inset-right));
	bottom: max(18px, env(safe-area-inset-bottom));
	z-index: 90;
	display: grid;
	place-items: center;
	width: 56px;
	height: 56px;
	border-radius: 50%;
	background: #25d366;
	color: #fff;
	box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
	transition: transform 0.3s var(--rx-ease);
}

.rx-float-wa::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: 50%;
	border: 2px solid #25d366;
	animation: rx-ripple 2.4s var(--rx-ease) infinite;
}

.rx-float-wa .rx-icon {
	width: 28px;
	height: 28px;
}

.rx-float-wa:hover {
	transform: scale(1.08);
}

/* 换页时页面主体淡出 */
.rx-main {
	display: block;
	min-height: 60vh;
}

/* 很窄的手机：页首只留 logo、语言和菜单按钮（索取报价在菜单里） */
@media (max-width: 480px) {
	.rx-header .rx-header__quote {
		display: none;
	}
}