/* Global base */
:root {
	--primary: #002244;
	--secondary1: #002244;
	--header-height: 68px;
	color-scheme: light;
}

* {
	box-sizing: border-box;
}

html,
body {
	height: 100%;
	scrollbar-width: none;
	-ms-overflow-style: none;
}

body {
	margin: 0;
	padding: 0;
	font-family: Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
	background: #ffffff;
	color: #475569;
	;
	line-height: 1.2;
	font-size: clamp(11px, 1.1vw, 12px);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;

}

body.nav-open {
	overflow: hidden;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
	display: none;
}

h1,
h2,
h3 {
	color: #002244;
	margin: 0 0 clamp(10px, 2.2vw, 16px);
}

h1 {
	font-size: clamp(22px, 4vw, 30px);
}

h2 {
	font-size: clamp(18px, 3.2vw, 24px);
}

h3 {
	font-size: clamp(16px, 2.6vw, 20px);
}

/* Simple fade-in */
.fade-in {
	animation: fadeIn .6s ease both;
}

@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(6px);
	}

	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* Utility containers */
.container {
	width: 100%;
	max-width: min(1200px, 94vw);
	margin: 0 auto;
	padding: 0 clamp(14px, 4vw, 28px);
}

/* Links */
a {
	color: #002244;
}

a:hover {
	color: #003366;
}

/* Responsive cards/grid */
.grid {
	display: grid;
	gap: 12px;
}

@media(min-width: 768px) {
	.grid.cols-2 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media(min-width: 1024px) {
	.grid.cols-3 {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

.card {
	background: #f8fafc;
	border: 1px solid rgba(0, 0, 0, .06);
	border-radius: 5px;
	padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
	box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

.card h3 {
	margin: 0 0 clamp(6px, 1.4vw, 10px);
	font-size: clamp(15px, 2.6vw, 18px);
	color: var(--primary)
}

.muted {
	opacity: .7;
	font-size: clamp(12px, 1.8vw, 13px);
	color: #475569
}

.stack {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

/* List on mobile, grid on desktop */
.list-grid {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

@media(min-width: 768px) {
	.list-grid {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media(min-width: 1024px) {
	.list-grid {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

/* Global button style */
button {
	background: var(--primary);
	color: #fff;
	border: none;
	padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
	border-radius: 5px;
	cursor: pointer;
	font-size: 12px;
	line-height: 1;
	height: 24px;
	box-sizing: border-box;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}

button:hover {
	background: #003366;

}

/* Language select styles */

.language-select {
	background: #ffffff;
	color: #1f2937;
	text-align: center;
	/* 使下拉内容居中 */
	text-align-last: center;
	/* 支持部分浏览器的选中项居中 */
	padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
	border-radius: 5px;
	border: 1px solid rgba(148, 163, 184, 0.35);
	box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
	font-size: clamp(12px, 2.4vw, 14px);
}

@media(min-width: 768px) {

	/* push language control to the right on desktop */
	.header .lang {
		margin-left: auto;
	}

	.language-select {
		background: #ffffff;
		border: 1px solid rgba(148, 163, 184, 0.35);
		padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
		border-radius: 5px;
		color: #1f2937;
		font-size: clamp(12px, 1.6vw, 14px);
		box-shadow: 0 6px 12px rgba(15, 23, 42, 0.08);
	}

	.language-select option {
		text-align: center;
	}
}

/* nav split: left links and right controls (username/logout/lang) */
.nav-left {
	display: flex;
	align-items: center;
	gap: clamp(10px, 2.4vw, 16px);
}

.nav-right {
	display: flex;
	align-items: center;
	gap: clamp(8px, 2.2vw, 12px);
	margin-left: auto;
}

@media(max-width: 767px) {
	.header-inner {
		padding: clamp(8px, 3vw, 12px);
	}

	.menu-btn {
		display: block;
		margin-left: auto;
	}

	/* mobile: stack nav items vertically, force each item full-width and one per line */
	.nav {
		display: none;
		position: fixed;
		left: clamp(10px, 4vw, 18px);
		right: clamp(10px, 4vw, 18px);
		top: calc(var(--header-height, 68px) + 8px);
		margin-top: 0;
		flex-direction: column;
		align-items: stretch;
		gap: 10px;
		background: #F5F5F6;
		border: 1px solid rgba(148, 163, 184, 0.32);
		border-radius: 5px;
		padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
		box-shadow: 0 18px 38px rgba(15, 23, 42, 0.18);
		z-index: 240;
		max-height: calc(100vh - var(--header-height, 68px) - 16px);
		overflow-y: auto;
	}

	.nav>* {
		display: block !important;
		width: 100% !important;
	}

	.nav a,
	.nav form button {
		display: block;
		width: 100%;
		text-align: left;
		padding: clamp(5px, 2.2vw, 5px) clamp(5px, 2.6vw, 5px);
		border-radius: 5px;
		background: transparent;
		border: 1px solid transparent;
	}

	.nav a.active {
		background: #e2e8f0;
		color: #0f172a;
		font-weight: 600;
		box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.5);
	}

	.nav a:hover,
	.nav a:focus,
	.nav a:active,
	.nav form button:hover,
	.nav form button:focus,
	.nav form button:active {
		background: #f1f5f9;
	}

	.nav form.logout-form {
		margin-left: 0;
	}

	body.nav-open .nav {
		display: flex;
	}