/*
* @Author: kingpoolee
* @Date:   2026-07-30 22:50:24
* @Last Modified by:   kingpoolee
* @Last Modified time: 2026-08-13 16:14:15
*/

* { margin: 0; padding: 0; box-sizing: border-box; user-select: none;}

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }

#header {
	box-shadow: 1px 1px 10px black;
}

/* 导航栏容器 */
.navbar {
	background: #ffffff;
	box-shadow: 0 2px 8px rgba(0,0,0,0.08);
	position: sticky;
	top: 0;
	z-index: 100;
}

.nav-container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 64px;
}

/* Logo */
.logo {
	font-size: 22px;
	font-weight: 700;
	color: #1a1a1a;
	text-decoration: none;
	letter-spacing: -0.5px;
}

.logo-icon {
	width: 40px;
}

/* 桌面端菜单 */
.nav-menu {
	display: flex;
	list-style: none;
	gap: 32px;
}

.nav-menu a {
	text-decoration: none;
	color: #555;
	font-size: 15px;
	font-weight: 500;
	transition: color 0.2s;
	position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
	color: #2563eb;
}

.nav-menu a.active::after {
	content: '';
	position: absolute;
	bottom: -20px;
	left: 0;
	right: 0;
	height: 2px;
	background: #2563eb;
}

/* 汉堡按钮 */
.hamburger {
	display: none;
	flex-direction: column;
	gap: 5px;
	cursor: pointer;
	padding: 8px;
	background: none;
	border: none;
}

.hamburger span {
	display: block;
	width: 24px;
	height: 2px;
	background: #333;
	transition: 0.3s;
}

/* 移动端适配 */
@media (max-width: 668px) {
	.hamburger { display: flex; }

	.nav-menu {
		position: fixed;
		top: 64px;
		left: 0;
		right: 0;
		background: #fff;
		flex-direction: column;
		padding: 16px 24px;
		gap: 0;
		box-shadow: 0 4px 12px rgba(0,0,0,0.1);

		/* 默认隐藏 */
		opacity: 0;
		visibility: hidden;
		transform: translateY(-10px);
		transition: all 0.3s ease;
	}

	.nav-menu.open {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}

	.nav-menu li {
		border-bottom: 1px solid #f0f0f0;
	}

	.nav-menu a {
		display: block;
		padding: 14px 0;
		font-size: 16px;
	}

	.nav-menu a.active::after { display: none; }
}