* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html,
body {
	min-height: 100%;
}

body {
	font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
	background:
		radial-gradient(circle at top left, rgba(92, 119, 255, 0.2), transparent 30%),
		radial-gradient(circle at right center, rgba(0, 211, 255, 0.16), transparent 24%),
		linear-gradient(180deg, #0c1224 0%, #111b35 55%, #0c1426 100%);
	color: #f4f7ff;
}

a {
	color: inherit;
}

#page {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

#topbar {
	width: min(1180px, calc(100% - 48px));
	margin: 0 auto;
	padding: 26px 0 8px;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 16px;
	padding: 14px 20px;
	border: 1px solid rgba(255, 255, 255, 0.1);
	border-radius: 20px;
	background: rgba(7, 15, 35, 0.48);
	backdrop-filter: blur(16px);
	box-shadow: 0 20px 50px rgba(3, 8, 20, 0.28);
}

.brand-icon {
	width: 52px;
	height: 52px;
	border-radius: 14px;
}

.brand-title {
	font-size: 18px;
	font-weight: 700;
	color: #ffffff;
}

.brand-subtitle {
	margin-top: 4px;
	font-size: 13px;
	color: rgba(224, 232, 255, 0.7);
}

#content {
	flex: 1;
	width: min(1180px, calc(100% - 48px));
	margin: 0 auto;
	display: flex;
	align-items: center;
	padding-bottom: 24px;
}

#hero {
	width: 100%;
	display: grid;
	grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
	gap: 56px;
	align-items: center;
	padding: 18px 0 36px;
}

.hero-copy {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

#appname {
	font-size: clamp(42px, 7vw, 64px);
	line-height: 1.05;
	letter-spacing: -0.03em;
	color: #ffffff;
}

#appdesc {
	margin-top: 18px;
	font-size: clamp(20px, 3vw, 28px);
	line-height: 1.35;
	color: #dbe5ff;
	max-width: 620px;
}

#appsummary {
	margin-top: 14px;
	max-width: 620px;
	font-size: 17px;
	line-height: 1.8;
	color: rgba(224, 232, 255, 0.78);
}

#store-category {
	margin-top: 26px;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: rgba(184, 199, 255, 0.8);
}

#store-buttons {
	margin-top: 14px;
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
}

.store-button {
	min-width: 220px;
	padding: 16px 20px;
	border-radius: 18px;
	border: 1px solid rgba(153, 175, 255, 0.24);
	display: flex;
	align-items: center;
	justify-content: flex-start;
	cursor: pointer;
	background: rgba(9, 18, 42, 0.6);
	color: #ffffff;
	box-shadow: 0 18px 36px rgba(5, 10, 24, 0.24);
	transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.store-button:hover {
	transform: translateY(-2px);
	border-color: rgba(190, 203, 255, 0.38);
	box-shadow: 0 22px 40px rgba(5, 10, 24, 0.3);
}

.store-button-content {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	width: 100%;
	gap: 12px;
}

.store-button-icon {
	width: 42px;
	height: 42px;
	border-radius: 14px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	background: rgba(255, 255, 255, 0.14);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.store-button-icon svg,
.store-button-icon img {
	width: 22px;
	height: 22px;
	display: block;
	object-fit: contain;
}

.store-button-label {
	font-size: 17px;
	font-weight: 700;
	letter-spacing: 0.01em;
}

#feature-points {
	margin-top: 34px;
	width: 100%;
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 18px;
}

.feature-point {
	padding: 20px;
	border-radius: 20px;
	background: rgba(10, 19, 43, 0.52);
	border: 1px solid rgba(161, 180, 255, 0.12);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.feature-point-title {
	font-size: 16px;
	font-weight: 700;
	color: #f7f9ff;
}

.feature-point-desc {
	margin-top: 8px;
	font-size: 14px;
	line-height: 1.7;
	color: rgba(224, 232, 255, 0.75);
}

.hero-visual {
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 520px;
}

.device-frame {
	width: min(100%, 420px);
	padding: 18px;
	border-radius: 32px;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06));
	box-shadow: 0 40px 90px rgba(2, 8, 20, 0.45);
	backdrop-filter: blur(12px);
}

#appimage {
	display: block;
	width: 100%;
	border-radius: 22px;
	object-fit: cover;
	box-shadow: 0 24px 50px rgba(4, 8, 22, 0.4);
}

#footer {
	width: min(1180px, calc(100% - 48px));
	margin: 0 auto;
	padding: 0 0 24px;
	display: flex;
	align-items: center;
	font-size: 14px;
	color: rgba(224, 232, 255, 0.68);
}

#footer-left,
#footer-middle,
#footer-right {
	flex: 1;
}

#footer-middle {
	text-align: center;
}

#footer-right {
	text-align: right;
}

#beian-link {
	display: none;
	color: rgba(224, 232, 255, 0.68);
	text-decoration: none;
}

#beian-link:hover {
	color: #ffffff;
}

@media (max-width: 980px) {
	#content {
		padding-bottom: 0;
	}

	#hero {
		grid-template-columns: 1fr;
		gap: 34px;
		padding-top: 24px;
	}

	.hero-visual {
		order: -1;
		min-height: auto;
	}

	#feature-points {
		grid-template-columns: 1fr;
	}

	#footer {
		flex-direction: column;
		gap: 12px;
		text-align: center;
	}

	#footer-left,
	#footer-middle,
	#footer-right {
		flex: none;
		width: 100%;
		text-align: center;
	}
}

@media (max-width: 640px) {
	#topbar,
	#content,
	#footer {
		width: min(100% - 32px, 1180px);
	}

	.brand {
		width: 100%;
	}

	.store-button {
		width: 100%;
		min-width: 0;
		justify-content: flex-start;
	}

	.device-frame {
		padding: 12px;
		border-radius: 24px;
	}

	#appsummary {
		font-size: 16px;
	}
}