/* ==========================================================================
   森林树屋营地 · 全局基础样式 (base.css)
   ========================================================================== */

:root {
	/* 森林主题色彩变量 */
	--primary-green: #4c7737;
	--accent-green: #8cc269;
	--dark-green: #2e7d32;
	--light-green: #e8f5e9;
	--mint-green: #c8f9d6;
	--forest-bg: #f7fff2;
	--wood-brown: #8b5a2b;
	--wood-light: #f5ebe1;
	--warm-gold: #f59e0b;
	--text-main: #2c3e50;
	--text-muted: #666666;
	--card-bg: rgba(255, 255, 255, 0.92);
	--glass-bg: rgba(255, 255, 255, 0.82);
	--shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.08);
	--shadow-md: 0 8px 20px rgba(46, 125, 50, 0.15);
	--shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.18);
	--radius-sm: 8px;
	--radius-md: 16px;
	--radius-lg: 24px;
	--radius-round: 50%;
	--transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* 样式重置 */
*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
	color: var(--text-main);
	line-height: 1.6;
	background-color: var(--forest-bg);
	overflow-x: hidden;
}

li {
	list-style: none;
}

a {
	text-decoration: none;
	color: inherit;
	transition: var(--transition);
}

img {
	max-width: 100%;
	display: block;
}

/* 清除浮动类 */
.clearfix::after,
.clearfix::before {
	content: "";
	display: table;
	clear: both;
}

/* ==========================================================================
   左侧悬浮式手绘风玻璃胶囊导航 (Anime Doodle Glass Capsule Nav)
   特性：
   1. 手绘线稿 SVG 图标替代 Emoji (木门、指南针、篝火、信箱)
   2. 抛弃通用 AI 绿色渐变，采用日系水墨素描 / 磨砂晶质设计语言
   3. 按钮尺寸与层级差异化（Active 饱满突出、普通灵动、入口轻巧、底部附带角色微章）
   4. 动态微交互：Hover 时图标轻旋倾斜、右侧箭头滑出、微光掠影
   ========================================================================== */
.glass-capsule-nav,
.box {
	position: fixed;
	left: 20px;
	top: 50%;
	transform: translateY(-50%);
	z-index: 1000;
	width: 56px; /* 默认收起态：仅容纳图标的极简胶囊 */
	padding: 12px 6px 10px 6px;
	border-radius: 28px;
	/* 日系通透磨砂纸质晶质感 */
	background: rgba(255, 255, 255, 0.72);
	-webkit-backdrop-filter: blur(20px) saturate(180%);
	backdrop-filter: blur(20px) saturate(180%);
	border: 1.5px solid rgba(226, 232, 240, 0.85);
	box-shadow: 
		0 16px 36px -4px rgba(15, 23, 42, 0.08),
		0 4px 12px -2px rgba(15, 23, 42, 0.04),
		inset 0 1px 1px rgba(255, 255, 255, 0.95);
	overflow: hidden;
	box-sizing: border-box;
	user-select: none;
	cursor: pointer;
	/* 丝滑贝塞尔平滑展开动效 */
	transition: 
		width 0.38s cubic-bezier(0.25, 0.8, 0.25, 1),
		padding 0.38s cubic-bezier(0.25, 0.8, 0.25, 1),
		background 0.3s ease,
		border-color 0.3s ease,
		box-shadow 0.35s ease;
}

/* 鼠标悬停、获焦或点击锁定激活时展开 */
.glass-capsule-nav:hover,
.glass-capsule-nav:focus-within,
.glass-capsule-nav.is-expanded,
.box:hover,
.box:focus-within,
.box.is-expanded {
	width: 178px; /* 平滑舒展宽度 */
	padding: 14px 10px 12px 10px;
	background: rgba(255, 255, 255, 0.88);
	border-color: rgba(203, 213, 225, 0.9);
	box-shadow: 
		0 20px 40px -4px rgba(15, 23, 42, 0.12),
		0 6px 16px -2px rgba(15, 23, 42, 0.06),
		inset 0 1px 2px rgba(255, 255, 255, 0.95);
}

/* ==========================================================================
   胶囊顶部标头指示区 (✦ MY WORLD)
   ========================================================================== */
.glass-capsule-nav .capsule-header,
.box .nav-title {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	height: 34px;
	padding: 0;
	margin: 0;
	cursor: pointer;
}

/* 顶部四芒星手绘微章 */
.glass-capsule-nav .capsule-sparkle {
	width: 42px;
	min-width: 42px;
	height: 34px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 15px;
	color: #475569;
	transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}

.glass-capsule-nav:hover .capsule-sparkle,
.glass-capsule-nav.is-expanded .capsule-sparkle {
	transform: rotate(90deg) scale(1.25);
	color: #0f172a;
}

/* 顶部标题文本 (✦ MY WORLD) */
.glass-capsule-nav .capsule-title,
.box .nav-title {
	font-size: 11.5px;
	font-weight: 800;
	color: #1e293b;
	letter-spacing: 1.8px;
	text-transform: uppercase;
	white-space: nowrap;
	opacity: 0;
	max-width: 0;
	overflow: hidden;
	margin: 0;
	transition: 
		opacity 0.28s ease,
		max-width 0.38s cubic-bezier(0.25, 0.8, 0.25, 1),
		margin 0.35s ease;
}

.glass-capsule-nav:hover .capsule-title,
.glass-capsule-nav.is-expanded .capsule-title,
.box:hover .nav-title,
.box.is-expanded .nav-title {
	opacity: 1;
	max-width: 120px;
	margin-left: 6px;
}

/* 胶囊内部柔光极细分割线 */
.glass-capsule-nav .capsule-divider {
	height: 1px;
	background: linear-gradient(90deg, transparent, rgba(203, 213, 225, 0.8), transparent);
	margin: 4px auto 8px auto;
	width: 22px;
	transition: width 0.38s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.glass-capsule-nav:hover .capsule-divider,
.glass-capsule-nav.is-expanded .capsule-divider {
	width: 100%;
}

/* 导航项容器 */
.glass-capsule-nav .capsule-menu {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

/* ==========================================================================
   单个导航项排版与尺寸层次 (拒绝每个按钮一模一样大)
   ========================================================================== */
.glass-capsule-nav a.capsule-item,
.box a {
	display: flex;
	align-items: center;
	text-decoration: none;
	width: 100%;
	border-radius: 14px;
	margin: 0;
	padding: 0;
	background: transparent;
	color: #475569;
	position: relative;
	box-sizing: border-box;
	overflow: hidden;
	transition: 
		background 0.25s ease,
		transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
		box-shadow 0.25s ease,
		color 0.25s ease,
		border-color 0.25s ease;
}

/* 层次 1：常规功能项高度 38px */
.glass-capsule-nav a.capsule-item {
	height: 38px;
	border: 1px solid transparent;
}

/* 层次 2：入口项 (森林玄关) 略有轻微虚线区分感 */
.glass-capsule-nav a.capsule-item.nav-door {
	height: 36px;
	opacity: 0.88;
}

/* 层次 3：当前激活项 (Active) 放大至 44px，富有沉稳饱满的聚焦感 */
.glass-capsule-nav a.capsule-item.active,
.box a.active {
	height: 44px;
	margin: 3px 0;
	border-radius: 16px;
	background: #1e293b;
	color: #f8fafc;
	box-shadow: 
		0 6px 20px rgba(30, 41, 59, 0.24),
		inset 0 1px 1px rgba(255, 255, 255, 0.18);
	border: 1px solid rgba(255, 255, 255, 0.12);
	opacity: 1;
}

/* 图标包裹区 (在 56px 胶囊收起态下正好居中对齐) */
.glass-capsule-nav .icon-wrap,
.glass-capsule-nav .item-icon {
	width: 42px;
	min-width: 42px;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}

/* 手绘线稿 SVG 基础样式 */
.glass-capsule-nav .nav-svg-icon {
	width: 20px;
	height: 20px;
	stroke: currentColor;
	transition: 
		transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1),
		stroke 0.25s ease;
	display: block;
}

/* 导航文字标题：默认收起态为 0 宽度与透明 */
.glass-capsule-nav .item-label {
	font-size: 13.5px;
	font-weight: 600;
	letter-spacing: 0.3px;
	color: inherit;
	white-space: nowrap;
	opacity: 0;
	max-width: 0;
	overflow: hidden;
	margin: 0;
	transition: 
		opacity 0.28s ease,
		max-width 0.38s cubic-bezier(0.25, 0.8, 0.25, 1),
		margin 0.35s ease;
}

/* 展开时文字平滑淡入扩展 */
.glass-capsule-nav:hover .item-label,
.glass-capsule-nav.is-expanded .item-label {
	opacity: 1;
	max-width: 90px;
	margin-left: 2px;
}

/* 右侧轻巧灵动箭头 (Hover 时滑出) */
.glass-capsule-nav .item-arrow {
	font-size: 16px;
	font-weight: 700;
	line-height: 1;
	color: #94a3b8;
	margin-left: auto;
	margin-right: 10px;
	opacity: 0;
	transform: translateX(-8px);
	transition: 
		opacity 0.22s ease,
		transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1),
		color 0.2s ease;
	pointer-events: none;
}

/* ==========================================================================
   交互动效：鼠标悬停微旋转、箭头滑出、背景微光掠影
   ========================================================================== */

/* 背景微光扫光条 */
.glass-capsule-nav a.capsule-item::before {
	content: "";
	position: absolute;
	top: 0;
	left: -120%;
	width: 70%;
	height: 100%;
	background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.75), transparent);
	transform: skewX(-20deg);
	transition: left 0.55s ease;
	pointer-events: none;
}

.glass-capsule-nav a.capsule-item:hover::before {
	left: 160%;
}

/* 未激活项 Hover 状态：柔光浮起、图标微旋、箭头滑入 */
.glass-capsule-nav a.capsule-item:not(.active):hover,
.box a:not(.active):hover {
	background: rgba(255, 255, 255, 0.95);
	color: #0f172a;
	border-color: rgba(203, 213, 225, 0.85);
	transform: translateY(-1px);
	box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
	opacity: 1;
}

/* 图标倾斜轻旋微动效 */
.glass-capsule-nav a.capsule-item:hover .nav-svg-icon {
	transform: rotate(-12deg) scale(1.18);
}

/* 箭头平滑滑入 */
.glass-capsule-nav a.capsule-item:hover .item-arrow {
	opacity: 1;
	transform: translateX(0);
	color: #0f172a;
}

/* 激活项 Hover 增强 */
.glass-capsule-nav a.capsule-item.active:hover {
	transform: scale(1.02);
	box-shadow: 0 8px 24px rgba(30, 41, 59, 0.32);
}

.glass-capsule-nav a.capsule-item.active .item-arrow {
	color: #cbd5e1;
}

/* 激活项图标带有定风珠般微光呼吸 */
.glass-capsule-nav a.capsule-item.active .nav-svg-icon {
	animation: activeIconGlow 3s ease-in-out infinite;
}

@keyframes activeIconGlow {
	0%, 100% {
		transform: scale(1);
		filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.6));
	}
	50% {
		transform: scale(1.06);
		filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.9));
	}
}

/* ==========================================================================
   胶囊底部角色微章 (JIAXING'S ISLAND 角色感)
   ========================================================================== */
.glass-capsule-nav .capsule-footer {
	margin-top: 6px;
	padding-top: 6px;
	border-top: 1px dashed rgba(226, 232, 240, 0.85);
	display: flex;
	align-items: center;
	justify-content: flex-start;
	height: 24px;
	padding-left: 0;
}

/* 呼吸小绿点 (探险者雷达信标) */
.glass-capsule-nav .traveler-beacon {
	width: 42px;
	min-width: 42px;
	height: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
}

.glass-capsule-nav .traveler-beacon::after {
	content: "";
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: #10b981;
	box-shadow: 0 0 8px #10b981;
	animation: beaconPulse 2.4s ease-in-out infinite;
}

@keyframes beaconPulse {
	0%, 100% {
		transform: scale(0.9);
		opacity: 0.7;
	}
	50% {
		transform: scale(1.25);
		opacity: 1;
		box-shadow: 0 0 12px #10b981;
	}
}

.glass-capsule-nav .traveler-tag {
	font-size: 10px;
	font-weight: 700;
	color: #64748b;
	letter-spacing: 1.2px;
	text-transform: uppercase;
	white-space: nowrap;
	opacity: 0;
	max-width: 0;
	overflow: hidden;
	margin: 0;
	transition: 
		opacity 0.28s ease,
		max-width 0.38s cubic-bezier(0.25, 0.8, 0.25, 1),
		margin 0.35s ease;
}

.glass-capsule-nav:hover .traveler-tag,
.glass-capsule-nav.is-expanded .traveler-tag {
	opacity: 1;
	max-width: 120px;
	margin-left: 2px;
}

/* ==========================================================================
   右侧悬浮返回顶部
   ========================================================================== */
.box-right {
	width: 56px;
	height: 56px;
	position: fixed;
	right: 32px;
	bottom: 32px;
	z-index: 999;
	background: var(--primary-green);
	border-radius: var(--radius-round);
	box-shadow: 0 6px 18px rgba(46, 125, 50, 0.35);
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: var(--transition);
	border: 2px solid #ffffff;
}

.box-right a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	color: #ffffff;
	font-size: 22px;
}

.box-right:hover {
	background: var(--accent-green);
	transform: translateY(-5px);
	box-shadow: 0 10px 22px rgba(46, 125, 50, 0.45);
}

/* ==========================================================================
   页尾 Footer
   ========================================================================== */
#footer {
	width: 100%;
	text-align: center;
	background-color: #e8f5e9;
	padding: 36px 20px;
	margin-top: 60px;
	color: #4a5568;
	border-top: 2px solid #d4ecd5;
}

#footer .footer-links {
	margin-bottom: 16px;
}

#footer .footer-links a {
	font-size: 15px;
	color: var(--primary-green);
	font-weight: 600;
	margin: 0 12px;
	padding: 4px 8px;
	border-radius: var(--radius-sm);
}

#footer .footer-links a:hover {
	background-color: #ffffff;
	color: var(--dark-green);
}

#footer p {
	font-size: 13px;
	line-height: 22px;
	color: #718096;
}

#footer .author-badge {
	display: inline-block;
	background-color: #ffffff;
	padding: 4px 12px;
	border-radius: 20px;
	margin-top: 10px;
	font-size: 12px;
	color: var(--primary-green);
	border: 1px solid #c8e6c9;
}

/* 响应式媒体查询微调 */
@media (max-width: 900px) {
	.glass-capsule-nav,
	.box {
		left: 12px;
		width: 50px;
		padding: 12px 5px;
	}
	.glass-capsule-nav .capsule-icon,
	.glass-capsule-nav .item-icon {
		width: 38px;
		min-width: 38px;
		font-size: 17px;
	}
	.glass-capsule-nav:hover,
	.glass-capsule-nav:focus-within,
	.glass-capsule-nav.is-expanded,
	.box:hover,
	.box:focus-within,
	.box.is-expanded {
		width: 156px;
		padding: 14px 8px;
	}
}

@media (max-width: 600px) {
	.glass-capsule-nav,
	.box {
		left: 8px;
		width: 46px;
		padding: 10px 4px;
		border-radius: 28px;
	}
	.glass-capsule-nav .capsule-icon,
	.glass-capsule-nav .item-icon {
		width: 36px;
		min-width: 36px;
		font-size: 16px;
	}
	.glass-capsule-nav:hover,
	.glass-capsule-nav:focus-within,
	.glass-capsule-nav.is-expanded,
	.box:hover,
	.box:focus-within,
	.box.is-expanded {
		width: 148px;
	}
}