/**
 * 晴辰导航 QT.Cool - 现代毛玻璃设计系统 v2.0
 * 武汉晴辰天下网络科技有限公司
 * 
 * 设计原则：
 * 1. 统一的视觉语言和间距系统
 * 2. 优雅的毛玻璃效果
 * 3. 流畅的动画过渡
 * 4. 响应式设计
 */

/* ==================== iOS Glassmorphism Pro Max v2.0 设计令牌 ==================== */
:root {
  /* 布局 */
  --max-width: 1200px;
  --content-padding: 24px;
  
  /* 亮色模式 - iOS 风格渐变背景 */
  --bg-primary: #ffffff;
  --bg-secondary: #F2F2F7;
  --bg-gradient: linear-gradient(180deg, #F2F2F7 0%, #E5E5EA 100%);
  
  /* 一级玻璃 - 导航栏/浮窗 */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-bg-solid: rgba(255, 255, 255, 0.85);
  --glass-blur: blur(20px) saturate(180%);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  
  /* 二级玻璃 - 卡片/面板 */
  --glass-bg-subtle: rgba(255, 255, 255, 0.6);
  --glass-blur-secondary: blur(16px) saturate(150%);
  --glass-border-subtle: rgba(255, 255, 255, 0.4);
  --glass-shadow-secondary: 0 4px 16px rgba(0, 0, 0, 0.06);
  
  /* 三级玻璃 - 输入框/按钮 */
  --glass-bg-tertiary: rgba(255, 255, 255, 0.5);
  --glass-blur-tertiary: blur(10px);
  --glass-border-tertiary: rgba(0, 0, 0, 0.08);
  
  /* 二级背景 */
  --glass-bg-secondary: rgba(248, 250, 252, 0.9);
  
  /* 主色系 - iOS Blue */
  --primary: #007AFF;
  --primary-hover: #0056CC;
  --primary-light: rgba(0, 122, 255, 0.08);
  --primary-medium: rgba(0, 122, 255, 0.15);
  --primary-gradient: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
  --primary-gradient-bright: linear-gradient(135deg, #5AC8FA 0%, #007AFF 100%);
  
  /* iOS 语义色彩 */
  --accent: #5AC8FA;
  --purple: #5856D6;
  --pink: #FF2D55;
  --success: #34C759;
  --warning: #FF9500;
  --danger: #FF3B30;
  --orange: #FF9500;
  --yellow: #FFCC00;
  --mint: #00C7BE;
  --teal: #30B0C7;
  --cyan: #32ADE6;
  --indigo: #5856D6;
  
  /* 文字颜色 - iOS 风格 */
  --text-primary: #1C1C1E;
  --text-secondary: #3C3C43;
  --text-tertiary: #8E8E93;
  --text-inverse: #ffffff;
  
  /* 阴影 - 更精致 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 40px rgba(0, 122, 255, 0.2);
  --shadow-glow-purple: 0 0 40px rgba(88, 86, 214, 0.15);
  --shadow-glow-pink: 0 0 40px rgba(255, 45, 85, 0.1);
  
  /* 圆角 - iOS 规范 */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* 缓动函数库 - iOS 动效 */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  
  /* 间距别名（兼容 admin.css） */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  
  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-mono: 'SF Mono', Menlo, Monaco, 'Cascadia Code', monospace;
}

/* 暗色模式 - iOS 深色风格 */
[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: #1C1C1E;
  --bg-gradient: linear-gradient(180deg, #000000 0%, #1C1C1E 100%);
  
  /* 一级玻璃 - 暗色 */
  --glass-bg: rgba(44, 44, 46, 0.7);
  --glass-bg-solid: rgba(44, 44, 46, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* 二级玻璃 - 暗色 */
  --glass-bg-subtle: rgba(44, 44, 46, 0.6);
  --glass-border-subtle: rgba(255, 255, 255, 0.08);
  --glass-shadow-secondary: 0 4px 16px rgba(0, 0, 0, 0.2);
  
  /* 三级玻璃 - 暗色 */
  --glass-bg-tertiary: rgba(58, 58, 60, 0.6);
  --glass-border-tertiary: rgba(255, 255, 255, 0.06);
  
  --glass-bg-secondary: rgba(28, 28, 30, 0.9);
  
  /* 暗色模式主色 - iOS 调亮 */
  --primary: #0A84FF;
  --primary-hover: #409CFF;
  --primary-light: rgba(10, 132, 255, 0.12);
  --primary-medium: rgba(10, 132, 255, 0.2);
  
  /* iOS 暗色语义色彩 */
  --success: #30D158;
  --warning: #FF9F0A;
  --danger: #FF453A;
  
  /* 文字颜色 - iOS 暗色 */
  --text-primary: #FFFFFF;
  --text-secondary: #EBEBF5;
  --text-tertiary: #8E8E93;
  
  /* 阴影 - 暗色 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(10, 132, 255, 0.25);
}

/* ==================== View Transitions - 圆形扩散主题切换 ==================== */
/* 禁用默认的交叉淡入淡出动画 */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

/* 新主题层在上层，用 clip-path 控制显示区域 */
::view-transition-new(root) {
  z-index: 1;
  animation: themeCircleReveal 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

::view-transition-old(root) {
  z-index: 0;
}

/* 圆形扩散动画 - 从指定位置向外扩散 */
@keyframes themeCircleReveal {
  from {
    clip-path: circle(0% at var(--theme-reveal-x, 0%) var(--theme-reveal-y, 100%));
  }
  to {
    clip-path: circle(150% at var(--theme-reveal-x, 0%) var(--theme-reveal-y, 100%));
  }
}

/* 动画优化 */
html.theme-transitioning {
  will-change: clip-path;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

a:hover {
  color: var(--primary-hover);
}

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

button {
  font-family: inherit;
}

/* ==================== 布局容器 ==================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.main-content {
  padding-top: 72px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== 彩色光晕背景装饰 - iOS Glassmorphism Pro Max ==================== */
.bg-decoration {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}

/* 光晕球体 */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  pointer-events: none;
  animation: blobFloat 20s ease-in-out infinite;
  will-change: transform;
}

/* iOS Blue 光晕 */
.bg-blob-1 {
  width: 40%;
  height: 40%;
  background: rgba(0, 122, 255, 0.3);
  top: 10%;
  right: 10%;
}

/* Purple 光晕 */
.bg-blob-2 {
  width: 35%;
  height: 35%;
  background: rgba(88, 86, 214, 0.25);
  bottom: 20%;
  left: 5%;
  animation-delay: -7s;
}

/* Pink 光晕 */
.bg-blob-3 {
  width: 30%;
  height: 30%;
  background: rgba(255, 45, 85, 0.2);
  top: 60%;
  left: 40%;
  animation-delay: -14s;
}

/* 额外的 Cyan 光晕 */
.bg-blob-4 {
  width: 25%;
  height: 25%;
  background: rgba(90, 200, 250, 0.2);
  top: 30%;
  left: 60%;
  animation-delay: -10s;
}

[data-theme="dark"] .bg-blob {
  opacity: 0.35;
  filter: blur(100px);
}

[data-theme="dark"] .bg-blob-1 {
  background: rgba(10, 132, 255, 0.3);
}

[data-theme="dark"] .bg-blob-2 {
  background: rgba(88, 86, 214, 0.25);
}

[data-theme="dark"] .bg-blob-3 {
  background: rgba(255, 45, 85, 0.2);
}

[data-theme="dark"] .bg-blob-4 {
  background: rgba(90, 200, 250, 0.15);
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* 粒子/星光背景效果 */
.particles-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.4), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.25), transparent),
    radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.3), transparent),
    radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 180px 50px, rgba(255,255,255,0.35), transparent);
  background-size: 200px 100px;
  animation: sparkle 25s linear infinite;
  opacity: 0.6;
}

[data-theme="dark"] .particles-bg {
  opacity: 0.4;
}

@keyframes sparkle {
  from { background-position: 0 0; }
  to { background-position: -200px 100px; }
}

/* ==================== iOS Glassmorphism 三级玻璃效果 ==================== */

/* 一级玻璃 - 导航栏/浮窗/模态框 */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* 一级玻璃 - 强化版 */
.glass-solid {
  background: var(--glass-bg-solid);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* 二级玻璃 - 卡片/面板 */
.glass-secondary {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--glass-border-subtle);
  box-shadow: var(--glass-shadow-secondary);
}

/* 三级玻璃 - 输入框/按钮/轻量元素 */
.glass-subtle {
  background: var(--glass-bg-tertiary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border-tertiary);
}

/* 一级玻璃别名 */
.glass-primary {
  background: var(--glass-bg-solid);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* 带渐变边框的玻璃效果 */
.glass-gradient-border {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.glass-gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.8), rgba(255,255,255,0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

[data-theme="dark"] .glass-gradient-border::before {
  background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05));
}

/* ==================== 动画 ==================== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fade-up {
  animation: fadeUp 0.6s var(--ease-out) forwards;
}

.animate-fade-in {
  animation: fadeIn 0.5s var(--ease-out) forwards;
}

.animate-scale-in {
  animation: scaleIn 0.4s var(--ease-out) forwards;
}

.stagger { --stagger: 0; animation-delay: calc(var(--stagger) * 60ms); }
.stagger-1 { --stagger: 1; }
.stagger-2 { --stagger: 2; }
.stagger-3 { --stagger: 3; }
.stagger-4 { --stagger: 4; }
.stagger-5 { --stagger: 5; }

/* Hover 效果 */
.hover-lift {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* 呼吸光效（聚焦状态） */
@keyframes breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 122, 255, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(0, 122, 255, 0); }
}

.focus-glow:focus {
  animation: breathe 2s ease-in-out infinite;
}

/* 水波纹点击效果 */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: transform 0.5s, opacity 0.5s;
  pointer-events: none;
}

.ripple:active::after {
  transform: translate(-50%, -50%) scale(2);
  opacity: 1;
  transition: 0s;
}

/* 渐变边框光效 */
.gradient-border {
  position: relative;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

[data-theme="dark"] .gradient-border::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
}

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  /* iOS Blue 渐变 */
  background: 
    linear-gradient(180deg, rgba(255,255,255,0.15) 0%, transparent 50%),
    linear-gradient(135deg, #5AC8FA 0%, #007AFF 100%);
  color: var(--text-inverse);
  box-shadow: 
    0 1px 3px rgba(0, 122, 255, 0.2),
    0 4px 12px rgba(0, 122, 255, 0.15),
    inset 0 1px 0 rgba(255,255,255,0.25);
  border: 1px solid rgba(255,255,255,0.15);
  text-shadow: 0 1px 1px rgba(0,0,0,0.1);
}

.btn-primary:hover {
  background: 
    linear-gradient(180deg, rgba(255,255,255,0.25) 0%, transparent 40%),
    linear-gradient(135deg, #64D2FF 0%, #0A84FF 100%);
  box-shadow: 
    0 2px 4px rgba(0, 122, 255, 0.25),
    0 8px 24px rgba(0, 122, 255, 0.25),
    inset 0 1px 0 rgba(255,255,255,0.3);
  color: var(--text-inverse);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--glass-bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--glass-border-subtle);
}

.btn-secondary:hover {
  background: var(--glass-bg);
  border-color: var(--glass-border);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s var(--ease-out);
}

.btn-icon:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* ==================== 头部导航 ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-3) var(--content-padding);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
  text-decoration: none;
}

.logo:hover {
  color: var(--text-primary);
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--ease-out);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* 主题切换 */
#theme-toggle .icon-sun,
[data-theme="dark"] #theme-toggle .icon-moon {
  display: block;
}

#theme-toggle .icon-moon,
[data-theme="dark"] #theme-toggle .icon-sun {
  display: none;
}

/* 移动端菜单 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 76px;
  left: var(--content-padding);
  right: var(--content-padding);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  flex-direction: column;
  gap: var(--space-2);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  display: flex;
  animation: scaleIn 0.25s var(--ease-out);
}

.mobile-nav-link {
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--ease-out);
}

.mobile-nav-link:hover {
  background: var(--primary-light);
  color: var(--primary);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
}

/* ==================== 页面头部区域 ==================== */
.page-hero {
  padding: var(--space-16) 0 var(--space-12);
}

.page-hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.page-hero-inner {
  padding: var(--space-10) var(--space-8);
  border-radius: var(--radius-2xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.page-hero-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

.page-hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.page-hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto;
}

/* ==================== 首页 Hero - iOS Glassmorphism Pro Max ==================== */
.home-hero {
  position: relative;
  padding: var(--space-20) 0 var(--space-12);
  overflow: hidden;
}

.home-hero-content {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
  z-index: 1;
}

.home-hero-inner {
  position: relative;
  padding: var(--space-12) var(--space-8);
  border-radius: var(--radius-2xl);
  text-align: center;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  overflow: hidden;
}

/* 渐变边框增强 */
.home-hero-inner.glass-gradient-border::before {
  background: linear-gradient(
    135deg, 
    rgba(255,255,255,0.9) 0%, 
    rgba(255,255,255,0.3) 25%,
    rgba(0, 122, 255, 0.2) 50%,
    rgba(255,255,255,0.3) 75%,
    rgba(255,255,255,0.9) 100%
  );
}

[data-theme="dark"] .home-hero-inner.glass-gradient-border::before {
  background: linear-gradient(
    135deg, 
    rgba(255,255,255,0.15) 0%, 
    rgba(255,255,255,0.05) 25%,
    rgba(10, 132, 255, 0.15) 50%,
    rgba(255,255,255,0.05) 75%,
    rgba(255,255,255,0.15) 100%
  );
}

.home-hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.home-hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 搜索框 */
.search-wrapper {
  max-width: 520px;
  margin: 0 auto;
}

.search-form {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-2);
  background: var(--glass-bg-subtle);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border-subtle);
}

.search-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-btn {
  padding: var(--space-3) var(--space-5);
  background: var(--primary-gradient);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s var(--ease-out);
}

.search-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.search-btn svg {
  width: 20px;
  height: 20px;
}

/* ==================== 内容区块 ==================== */
.section {
  padding: var(--space-8) 0;
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.section-icon {
  font-size: 1.25rem;
}

.section-more {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.section-more:hover {
  gap: var(--space-2);
}

.section-more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s var(--ease-out);
}

.section-more:hover svg {
  transform: translateX(2px);
}

/* ==================== 分类导航 ==================== */
.category-nav-wrapper {
  max-width: var(--max-width);
  margin: 0 auto var(--space-8);
  padding: 0 var(--content-padding);
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  background: var(--glass-bg-solid);
}

.category-tag {
  position: relative;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  border: 1px solid transparent;
  overflow: hidden;
}

.category-tag::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-light);
  border-radius: inherit;
  transform: scale(0);
  opacity: 0;
  transition: all 0.25s var(--ease-spring);
}

.category-tag:hover::before {
  transform: scale(1);
  opacity: 1;
}

.category-tag:hover {
  color: var(--primary);
  border-color: rgba(0, 122, 255, 0.15);
  transform: translateY(-2px);
}

.category-tag.active {
  background: 
    linear-gradient(180deg, rgba(255,255,255,0.2) 0%, transparent 50%),
    var(--primary-gradient);
  color: var(--text-inverse);
  box-shadow: 
    var(--shadow-md), 
    0 0 24px rgba(0, 122, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.2);
}

.category-tag.active::before {
  display: none;
}

.category-tag:active {
  transform: scale(0.97);
}

.category-tag span {
  font-size: 1.125rem;
}

/* ==================== iOS Glassmorphism 项目卡片网格 ==================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-5);
}

.project-card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s var(--ease-out);
  overflow: hidden;
}

/* 卡片内部光效 */
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
  opacity: 0.6;
}

[data-theme="dark"] .project-card::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

/* 悬浮光晕效果 */
.project-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 122, 255, 0.06) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.project-card:hover::after {
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 
    var(--shadow-lg),
    0 0 0 1px rgba(0, 122, 255, 0.08);
  border-color: rgba(0, 122, 255, 0.15);
}

.project-card:active {
  transform: translateY(-3px) scale(0.99);
  transition: transform 0.1s ease;
}

.project-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.project-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  flex-shrink: 0;
  background: var(--glass-bg-subtle);
  padding: 6px;
  border: 1px solid var(--glass-border-subtle);
}

/* 图片加载失败时显示占位 */
.project-logo.error,
.project-logo[src=""],
.project-logo:not([src]) {
  display: none;
}

.project-logo-placeholder {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  /* iOS Blue 渐变 */
  background: 
    linear-gradient(180deg, rgba(255,255,255,0.25) 0%, transparent 40%),
    linear-gradient(135deg, #5AC8FA 0%, #007AFF 100%);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 600;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  /* 精致的阴影 */
  box-shadow: 
    0 4px 12px rgba(0, 122, 255, 0.3),
    inset 0 1px 0 rgba(255,255,255,0.3);
  border: 1px solid rgba(255,255,255,0.2);
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
  transition: all 0.3s var(--ease-spring);
  overflow: hidden;
}

/* 光泽动效 */
.project-logo-placeholder::after {
  content: '';
  position: absolute;
  top: -100%;
  left: -100%;
  width: 300%;
  height: 300%;
  background: linear-gradient(135deg, transparent 30%, rgba(255,255,255,0.3) 50%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-logo-placeholder {
  transform: scale(1.05);
  box-shadow: 
    0 6px 16px rgba(0, 122, 255, 0.35),
    inset 0 1px 0 rgba(255,255,255,0.4);
}

.project-card:hover .project-logo-placeholder::after {
  opacity: 1;
  animation: shimmerLogo 0.8s ease-out;
}

@keyframes shimmerLogo {
  from { transform: translateX(-50%) translateY(-50%) rotate(45deg); }
  to { transform: translateX(50%) translateY(50%) rotate(45deg); }
}

/* 通用图片加载失败占位 */
.img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg-subtle);
  border-radius: inherit;
  color: var(--text-tertiary);
  font-size: 2rem;
}

.project-info {
  flex: 1;
  min-width: 0;
}

.project-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.project-version {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--glass-bg-subtle);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.project-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-badge-featured {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #78350f;
}

.project-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--glass-border-subtle);
}

.project-stats {
  display: flex;
  gap: var(--space-4);
}

.project-stat {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.project-stat svg {
  width: 16px;
  height: 16px;
}

.project-stat-star svg {
  color: #f59e0b;
}

.project-stat-fork svg {
  color: var(--text-tertiary);
}

.project-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--primary-light);
  transition: all 0.25s var(--ease-out);
}

.project-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s var(--ease-spring);
}

.project-link:hover {
  background: var(--primary-medium);
  color: var(--primary);
  transform: translateX(2px);
}

.project-link:hover svg {
  transform: translateX(4px);
}

.project-link:active {
  transform: scale(0.97);
}

/* ==================== iOS Glassmorphism 文章列表 ==================== */
.articles-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.article-card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s var(--ease-out);
  overflow: hidden;
}

/* 顶部光效线 */
.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.7), transparent);
  opacity: 0.7;
}

[data-theme="dark"] .article-card::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

/* 悬浮光晕 */
.article-card::after {
  content: '';
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0;
  background: var(--primary-gradient);
  border-radius: 4px;
  transition: all 0.3s var(--ease-spring);
  opacity: 0;
}

.article-card:hover::after {
  height: 60%;
  opacity: 1;
}

.article-card:hover {
  transform: translateY(-4px) translateX(4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 122, 255, 0.1);
}

.article-card:active {
  transform: translateY(-2px) scale(0.99);
}

.article-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.article-title a {
  color: var(--text-primary);
}

.article-title a:hover {
  color: var(--primary);
}

.article-excerpt {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.article-meta {
  display: flex;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.article-read-more {
  position: relative;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--primary-light);
  transition: all 0.25s var(--ease-out);
}

.article-read-more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s var(--ease-spring);
}

.article-read-more:hover {
  background: var(--primary-medium);
  transform: translateX(2px);
}

.article-read-more:hover svg {
  transform: translateX(4px);
}

.article-read-more:active {
  transform: scale(0.97);
}

/* ==================== 空状态 ==================== */
.empty-state {
  padding: var(--space-16) var(--space-8);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.empty-illustration {
  width: 160px;
  height: 160px;
  margin: 0 auto var(--space-6);
  position: relative;
}

.empty-illustration-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(139, 92, 246, 0.1) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-illustration-icon {
  font-size: 4rem;
  opacity: 0.8;
}

.empty-illustration-dots {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.3;
}

.empty-illustration-dots:nth-child(2) {
  top: 10px;
  right: 20px;
  animation: dotFloat 3s ease-in-out infinite;
}

.empty-illustration-dots:nth-child(3) {
  bottom: 20px;
  left: 15px;
  animation: dotFloat 3s ease-in-out infinite 1s;
}

.empty-illustration-dots:nth-child(4) {
  top: 50%;
  right: 5px;
  animation: dotFloat 3s ease-in-out infinite 2s;
}

@keyframes dotFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.empty-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}

.empty-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

/* ==================== 页脚 ==================== */
.footer {
  margin-top: auto;
  padding: var(--space-12) 0 var(--space-6);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.footer-content {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--glass-border-subtle);
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.footer-logo-img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
}

.footer-logo-text {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: var(--space-12);
}

.footer-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-section a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: var(--space-1) 0;
  transition: color 0.2s var(--ease-out);
}

.footer-section a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding-top: var(--space-6);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  text-align: center;
  flex-wrap: wrap;
}

.footer-bottom a {
  color: var(--text-tertiary);
}

.footer-bottom a:hover {
  color: var(--primary);
}

.footer-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-tertiary);
  opacity: 0.5;
}

@media (max-width: 768px) {
  .footer-top {
    flex-direction: column;
    gap: var(--space-8);
  }
  
  .footer-brand {
    max-width: 100%;
    text-align: center;
  }
  
  .footer-logo {
    justify-content: center;
  }
  
  .footer-links {
    justify-content: center;
    gap: var(--space-8);
  }
  
  .footer-section {
    text-align: center;
  }
}

/* ==================== 分页 ==================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}

.pagination-btn {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s var(--ease-out);
}

.pagination-btn:hover:not(.disabled) {
  background: var(--primary-light);
  color: var(--primary);
}

.pagination-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-pages {
  display: flex;
  gap: var(--space-1);
}

.pagination-page {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s var(--ease-out);
}

.pagination-page:hover:not(.active) {
  background: var(--glass-bg-subtle);
}

.pagination-page.active {
  background: var(--primary-gradient);
  color: var(--text-inverse);
}

/* ==================== 搜索结果 ==================== */
.search-results-section {
  margin-bottom: var(--space-10);
}

.search-results-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.search-results-count {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-tertiary);
}

/* ==================== AI 助手 ==================== */
.ai-widget {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
}

.ai-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s var(--ease-out);
}

.ai-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.ai-toggle svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.ai-panel {
  position: absolute;
  bottom: 70px;
  right: 0;
  width: 380px;
  height: 500px;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.3s var(--ease-out);
}

.ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--glass-border-subtle);
}

.ai-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 1rem;
}

.ai-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.ai-close,
.ai-clear {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all 0.2s var(--ease-out);
}

.ai-close:hover,
.ai-clear:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.ai-clear:hover {
  color: var(--warning);
}

.ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ai-message {
  max-width: 85%;
  animation: fadeUp 0.3s var(--ease-out);
}

.ai-message-bot {
  align-self: flex-start;
}

.ai-message-user {
  align-self: flex-end;
}

.ai-message-content {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.ai-message-bot .ai-message-content {
  background: var(--glass-bg-subtle);
  color: var(--text-primary);
  border-bottom-left-radius: var(--radius-xs);
}

.ai-message-user .ai-message-content {
  background: var(--primary-gradient);
  color: var(--text-inverse);
  border-bottom-right-radius: var(--radius-xs);
}

.ai-input-area {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--glass-border-subtle);
}

.ai-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  background: var(--glass-bg-subtle);
  font-size: 0.9375rem;
  color: var(--text-primary);
  outline: none;
  transition: all 0.2s var(--ease-out);
}

.ai-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.ai-send {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--primary-gradient);
  color: var(--text-inverse);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s var(--ease-out);
}

.ai-send:hover:not(:disabled) {
  transform: scale(1.05);
}

.ai-send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ai-send svg {
  width: 18px;
  height: 18px;
}

.ai-footer {
  padding: var(--space-2) var(--space-4);
  border-top: 1px solid var(--glass-border-subtle);
  background: var(--glass-bg-subtle);
}

.ai-footer-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* AI消息中的Markdown样式 */
.ai-message-content code {
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 0.875em;
}

.ai-message-content pre {
  background: rgba(0, 0, 0, 0.05);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: var(--space-2) 0;
}

.ai-message-content pre code {
  background: transparent;
  padding: 0;
}

.ai-message-content strong {
  font-weight: 600;
}

.ai-message-content ul,
.ai-message-content ol {
  margin: var(--space-2) 0;
  padding-left: var(--space-5);
}

.ai-message-content li {
  margin: var(--space-1) 0;
}

.ai-message-content h2,
.ai-message-content h3,
.ai-message-content h4 {
  font-weight: 600;
  margin: var(--space-3) 0 var(--space-2);
}

.ai-message-content h2 { font-size: 1.1rem; }
.ai-message-content h3 { font-size: 1rem; }
.ai-message-content h4 { font-size: 0.95rem; }

.ai-message-content a {
  color: var(--primary);
  text-decoration: none;
}

.ai-message-content a:hover {
  text-decoration: underline;
}

/* 加载动画 */
.ai-message.loading .ai-message-content {
  color: var(--text-tertiary);
}

.ai-message.loading .ai-message-content::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--text-tertiary);
  border-radius: 50%;
  margin-left: 4px;
  animation: blink 1.4s infinite both;
}

@keyframes blink {
  0%, 80%, 100% { opacity: 0; }
  40% { opacity: 1; }
}

@media (max-width: 480px) {
  .ai-panel {
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
  }
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  left: var(--space-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s var(--ease-out);
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
}

/* ==================== Toast 通知 ==================== */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s var(--ease-spring);
  pointer-events: auto;
}

.toast-success {
  background: rgba(16, 185, 129, 0.95);
  color: white;
}

.toast-error {
  background: rgba(239, 68, 68, 0.95);
  color: white;
}

.toast-info {
  background: rgba(59, 130, 246, 0.95);
  color: white;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.fade-out {
  animation: toastOut 0.3s var(--ease-out) forwards;
}

@keyframes toastOut {
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ==================== Markdown 内容 ==================== */
.markdown-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
  /* 防止长链接/长文本溢出容器 */
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.3;
}

.markdown-body h1 { font-size: 1.75rem; }
.markdown-body h2 { font-size: 1.5rem; }
.markdown-body h3 { font-size: 1.25rem; }

.markdown-body p {
  margin-bottom: 1em;
}

.markdown-body ul,
.markdown-body ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
}

.markdown-body li {
  margin-bottom: 0.5em;
}

.markdown-body code {
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 0.875em;
  font-family: var(--font-mono);
  color: #d63384;
}

[data-theme="dark"] .markdown-body code {
  background: rgba(255, 255, 255, 0.1);
  color: #f472b6;
}

.markdown-body pre {
  position: relative;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  padding: 0;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 1.5em;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.markdown-body pre code {
  display: block;
  background: none;
  padding: 16px 20px;
  padding-top: 44px;
  overflow-x: auto;
  color: #e2e8f0;
  font-size: 0.875rem;
  line-height: 1.7;
  tab-size: 2;
}

/* 代码块滚动条美化 */
.markdown-body pre code::-webkit-scrollbar {
  height: 6px;
}

.markdown-body pre code::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.markdown-body pre code::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.markdown-body pre code::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 代码块顶部工具栏 */
.markdown-body pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 36px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  padding: 0 12px;
}

/* macOS 风格窗口按钮 */
.markdown-body pre::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 14px;
  width: 12px;
  height: 12px;
  background: #ff5f57;
  border-radius: 50%;
  box-shadow: 20px 0 0 #ffbd2e, 40px 0 0 #28c840;
}

/* 复制按钮容器 */
.markdown-body pre .copy-btn {
  position: absolute;
  top: 6px;
  right: 10px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
}

.markdown-body pre .copy-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.markdown-body pre .copy-btn:active {
  transform: scale(0.95);
}

.markdown-body pre .copy-btn.copied {
  color: #4ade80;
  border-color: #4ade80;
}

.markdown-body blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--space-4);
  margin: 1em 0;
  color: var(--text-secondary);
  font-style: italic;
}

.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  /* 图片加载动画 - 骨架屏效果 */
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.06) 25%,
    rgba(0, 0, 0, 0.1) 50%,
    rgba(0, 0, 0, 0.06) 75%
  );
  background-size: 200% 100%;
  animation: imageLoading 1.5s infinite;
  min-height: 50px;
  transition: opacity 0.3s ease;
}

/* 图片加载完成 */
.markdown-body img.loaded {
  animation: none;
  background: transparent;
  min-height: auto;
}

/* 图片加载失败 */
.markdown-body img.error {
  animation: none;
  background: rgba(0, 0, 0, 0.06);
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.markdown-body img.error::after {
  content: "图片加载失败";
  position: absolute;
  color: var(--text-tertiary);
  font-size: 12px;
}

/* 暗色模式下的图片加载动画 */
[data-theme="dark"] .markdown-body img {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.06) 25%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.06) 75%
  );
  background-size: 200% 100%;
}

[data-theme="dark"] .markdown-body img.loaded {
  background: transparent;
}

[data-theme="dark"] .markdown-body img.error {
  background: rgba(255, 255, 255, 0.06);
}

@keyframes imageLoading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 链接内的图片（徽章等）保持内联 */
.markdown-body a {
  text-decoration: none;
  color: var(--primary);
  /* 长链接自动换行 */
  word-break: break-all;
  overflow-wrap: anywhere;
}

.markdown-body a img {
  display: inline-block;
  vertical-align: middle;
  border-radius: 4px;
  margin: 0;
}

/* 徽章（Badge）样式 - shields.io 等 */
.markdown-body img[src*="shields.io"],
.markdown-body img[src*="badge"],
.markdown-body img[src*="img.shields"],
.markdown-body img[alt="Release"],
.markdown-body img[alt="License"],
.markdown-body img[alt="Build"],
.markdown-body img[alt="Go"],
.markdown-body img[alt="Website"] {
  display: inline-block;
  height: 20px;
  border-radius: 4px;
  vertical-align: middle;
}

/* 徽章容器样式（通过 JS 添加 .badge-container 类） */
.markdown-body .badge-container,
.markdown-body p.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 1em;
  line-height: 1.5;
}

.markdown-body .badge-container a,
.markdown-body p.badges a {
  display: inline-flex;
  line-height: 1;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em;
}

.markdown-body th,
.markdown-body td {
  padding: var(--space-3);
  border: 1px solid var(--glass-border-subtle);
  text-align: left;
}

.markdown-body th {
  background: var(--glass-bg-subtle);
  font-weight: 600;
}

/* ==================== 骨架屏 ==================== */
.skeleton {
  background: linear-gradient(90deg, 
    var(--glass-bg-subtle) 25%, 
    var(--glass-bg) 50%, 
    var(--glass-bg-subtle) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  :root {
    --max-width: 100%;
  }
  
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --content-padding: 16px;
  }
  
  /* Hero 区域 */
  .home-hero {
    padding: var(--space-10) 0 var(--space-6);
  }
  
  .home-hero-inner {
    padding: var(--space-6) var(--space-4);
  }
  
  .home-hero-title {
    font-size: 1.75rem;
  }
  
  .home-hero-subtitle {
    font-size: 0.9375rem;
  }
  
  .page-hero {
    padding: var(--space-8) 0 var(--space-6);
  }
  
  .page-hero-inner {
    padding: var(--space-6) var(--space-4);
  }
  
  .page-hero-title {
    font-size: 1.5rem;
  }
  
  .page-hero-icon {
    font-size: 2.5rem;
  }
  
  /* 分类导航 */
  .category-nav-wrapper {
    margin-bottom: var(--space-5);
  }
  
  .category-nav {
    padding: var(--space-3) var(--space-4);
    gap: var(--space-2);
    border-radius: var(--radius-lg);
  }
  
  .category-tag {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
  }
  
  .category-tag span {
    font-size: 1rem;
  }
  
  /* 项目/文章网格 */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .project-card {
    padding: var(--space-5);
  }
  
  .project-logo,
  .project-logo-placeholder {
    width: 48px;
    height: 48px;
  }
  
  .project-name {
    font-size: 1rem;
  }
  
  .project-desc {
    font-size: 0.875rem;
    -webkit-line-clamp: 2;
  }
  
  /* Section */
  .section {
    padding: var(--space-8) 0;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
  }
  
  .section-title {
    font-size: 1.25rem;
  }
  
  /* 搜索表单 */
  .search-form {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .search-input {
    padding: var(--space-4);
    font-size: 1rem;
  }
  
  .search-btn {
    width: 100%;
    padding: var(--space-4);
    justify-content: center;
  }
  
  /* 页脚 */
  .footer-top {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .footer-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-8);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }
  
  .footer-divider {
    display: none;
  }
  
  /* Header */
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .header-inner {
    padding: var(--space-3) var(--space-4);
  }
  
  .logo-img {
    width: 28px;
    height: 28px;
  }
  
  .logo span {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  :root {
    --content-padding: 12px;
  }
  
  /* 分类导航滚动 */
  .category-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  
  .category-nav::-webkit-scrollbar {
    display: none;
  }
  
  .category-tag {
    flex-shrink: 0;
  }
  
  /* 项目卡片 */
  .project-header {
    gap: var(--space-3);
  }
  
  .project-logo,
  .project-logo-placeholder {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }
  
  .project-footer {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }
  
  .project-stats {
    justify-content: flex-start;
  }
  
  .project-link {
    justify-content: center;
  }
  
  /* 文章卡片 */
  .article-card {
    padding: var(--space-4);
  }
  
  .article-title {
    font-size: 1rem;
  }
  
  .article-excerpt {
    font-size: 0.8125rem;
    -webkit-line-clamp: 2;
  }
  
  /* 详情页 */
  .project-detail-card {
    padding: var(--space-4);
  }
  
  .project-detail-logo {
    width: 64px;
    height: 64px;
  }
  
  .project-detail-title {
    font-size: 1.25rem;
  }
  
  .project-detail-stats {
    gap: var(--space-3);
  }
  
  .project-detail-stat {
    padding: var(--space-2) var(--space-3);
  }
  
  .project-detail-actions {
    flex-direction: column;
  }
  
  .project-action-btn {
    width: 100%;
    justify-content: center;
  }
  
  .project-content-card {
    padding: var(--space-4);
  }
  
  .sidebar-card {
    padding: var(--space-4);
  }
}

/* ==================== 无障碍 ==================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ==================== 项目详情页 ==================== */
.project-detail-hero {
  position: relative;
  padding: var(--space-16) 0 var(--space-10);
  overflow: hidden;
}

.project-detail-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.project-detail-hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%);
}

.project-detail-hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.project-detail-card {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.project-detail-header {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.project-detail-logo {
  flex-shrink: 0;
  width: 96px;
  height: 96px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--glass-bg-subtle);
  box-shadow: var(--shadow-md);
}

.project-detail-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

.project-detail-logo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
}

.project-detail-logo-placeholder span {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-inverse);
}

.project-detail-info {
  flex: 1;
  min-width: 0;
}

.project-detail-title-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.project-detail-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.project-detail-version {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.project-detail-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.project-detail-stats {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.project-detail-stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--glass-bg-subtle);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border-subtle);
}

.project-detail-stat svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.project-detail-stat .stat-icon-emoji {
  font-size: 1.25rem;
}

.project-detail-stat .stat-value {
  font-weight: 600;
  color: var(--text-primary);
}

.project-detail-stat .stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.project-detail-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  border-top: 1px solid var(--glass-border-subtle);
}

.project-action-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: all 0.3s var(--ease-out);
  text-decoration: none;
  overflow: hidden;
}

.project-action-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.3s var(--ease-spring);
}

.project-action-btn:active {
  transform: scale(0.97);
  transition: transform 0.1s ease;
}

/* 主按钮 - 渐变玻璃效果 */
.project-action-btn.primary {
  background: var(--primary-gradient);
  color: var(--text-inverse);
  border: none;
  box-shadow: 
    0 4px 16px rgba(0, 122, 255, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.project-action-btn.primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-action-btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 
    0 8px 28px rgba(0, 122, 255, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.project-action-btn.primary:hover::before {
  opacity: 1;
}

.project-action-btn.primary:hover svg {
  transform: translate(2px, -2px);
}

/* 次级按钮 - 玻璃形态 */
.project-action-btn.secondary {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .project-action-btn.secondary {
  background: rgba(58, 58, 60, 0.7);
  border-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.project-action-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.85);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 122, 255, 0.2);
  color: var(--primary);
}

[data-theme="dark"] .project-action-btn.secondary:hover {
  background: rgba(68, 68, 70, 0.85);
  color: #0A84FF;
}

/* 项目详情页内容区 */
.project-detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-8);
  align-items: start;
}

.project-detail-main {
  min-width: 0;
}

.project-content-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.project-content-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--glass-border-subtle);
}

.project-content-header svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.project-content-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.project-content-body {
  min-height: 200px;
}

.project-empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.project-empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.project-empty-state p {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.project-empty-state span {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* 项目详情侧边栏 */
.project-detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: sticky;
  top: 100px;
}

.sidebar-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--glass-border-subtle);
}

.sidebar-title svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.sidebar-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sidebar-info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-info-item .info-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.sidebar-info-item .info-value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.sidebar-info-item .info-link {
  color: var(--primary);
  transition: color 0.2s;
}

.sidebar-info-item .info-link:hover {
  color: var(--primary-hover);
}

.sidebar-info-item .star-icon {
  width: 16px;
  height: 16px;
  color: var(--warning);
}

.sidebar-info-item .version-badge {
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}

.sidebar-article-list {
  list-style: none;
}

.sidebar-article-list li {
  border-bottom: 1px solid var(--glass-border-subtle);
}

.sidebar-article-list li:last-child {
  border-bottom: none;
}

.sidebar-article-list a {
  display: block;
  padding: var(--space-3) 0;
  text-decoration: none;
  transition: opacity 0.2s;
}

.sidebar-article-list a:hover {
  opacity: 0.8;
}

.sidebar-article-list .article-title {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-1);
}

.sidebar-article-list .article-date {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.sidebar-quick-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.quick-action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.25s var(--ease-out);
  border: 1px solid var(--glass-border-subtle);
}

.quick-action-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: all 0.25s var(--ease-out);
}

.quick-action-btn:hover {
  background: var(--glass-bg);
  color: var(--primary);
  border-color: rgba(0, 122, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.quick-action-btn:hover svg {
  color: var(--primary);
  transform: translateX(-2px);
}

.quick-action-btn:active {
  transform: translateY(0) scale(0.98);
  transition: transform 0.1s ease;
}

/* 焦点状态 - 无障碍 */
.quick-action-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 响应式 - iOS Glassmorphism 优化 */
@media (max-width: 1024px) {
  .project-detail-grid {
    grid-template-columns: 1fr;
  }
  
  .project-detail-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
  }
  
  .sidebar-card {
    height: fit-content;
  }
}

@media (max-width: 768px) {
  .project-detail-hero {
    padding: var(--space-10) 0 var(--space-6);
  }
  
  .project-detail-card {
    padding: var(--space-5);
    border-radius: var(--radius-xl);
  }
  
  .project-detail-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .project-detail-logo {
    width: 80px;
    height: 80px;
  }
  
  .project-detail-title {
    font-size: 1.5rem;
  }
  
  .project-detail-stats {
    justify-content: center;
  }
  
  .project-detail-actions {
    justify-content: center;
    width: 100%;
  }
  
  .project-action-btn {
    flex: 1;
    min-width: 140px;
    justify-content: center;
  }
  
  /* 侧边栏单列显示 */
  .project-detail-sidebar {
    grid-template-columns: 1fr;
  }
  
  .sidebar-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }
  
  .sidebar-title {
    font-size: 0.9375rem;
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-3);
  }
  
  .sidebar-info-list {
    gap: var(--space-3);
  }
  
  .sidebar-info-item {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  
  .quick-action-btn {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .project-detail-hero {
    padding: var(--space-8) 0 var(--space-5);
  }
  
  .project-detail-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }
  
  .project-detail-logo {
    width: 64px;
    height: 64px;
  }
  
  .project-detail-title {
    font-size: 1.25rem;
  }
  
  .project-detail-desc {
    font-size: 0.9375rem;
    line-height: 1.6;
  }
  
  .project-detail-stats {
    gap: var(--space-2);
  }
  
  .project-detail-stat {
    padding: var(--space-2);
    font-size: 0.8125rem;
  }
  
  .project-detail-actions {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .project-action-btn {
    width: 100%;
    min-width: unset;
  }
  
  /* 确保内容不被浮动按钮遮挡 */
  .project-detail-sidebar {
    padding-bottom: 80px;
  }
  
  .project-content-card {
    padding: var(--space-5);
  }
}

/* ==================== 文章详情页 ==================== */
.detail-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding) var(--space-12);
}

.detail-hero {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.detail-content-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-8);
}

.detail-main {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

@media (max-width: 900px) {
  .detail-content-grid {
    grid-template-columns: 1fr;
  }
}

/* ==================== 错误页面 ==================== */
.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 200px);
  padding: var(--space-6);
}

.error-content {
  text-align: center;
  padding: var(--space-12);
  border-radius: var(--radius-xl);
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.error-code {
  font-size: 5rem;
  font-weight: 700;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.error-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

/* ==================== 搜索建议下拉 ==================== */
.search-suggestions-dropdown {
  background: var(--glass-bg-solid);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 320px;
  overflow-y: auto;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.search-suggestion-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.search-suggestion-item:hover,
.search-suggestion-item.selected {
  background: var(--primary-light);
}

.search-suggestion-item:first-child {
  border-radius: 12px 12px 0 0;
}

.search-suggestion-item:last-child {
  border-radius: 0 0 12px 12px;
}

.suggestion-type {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.suggestion-type-project {
  background: rgba(0, 122, 255, 0.1);
  color: #007AFF;
}

.suggestion-type-category {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.suggestion-type-article {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.suggestion-name {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.suggestion-extra {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ==================== 批量操作栏 ==================== */
.batch-action-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 1000;
  animation: slideUp 0.3s var(--ease-out);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.batch-action-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  padding-right: 24px;
  border-right: 1px solid var(--glass-border);
}

.batch-action-info .icon {
  color: var(--primary);
}

.batch-action-info strong {
  color: var(--primary);
  font-weight: 600;
}

.batch-action-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.batch-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

/* 暗色模式适配 */
@media (prefers-color-scheme: dark) {
  .batch-action-bar {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  }
}

/* 响应式适配 */
@media (max-width: 768px) {
  .batch-action-bar {
    left: 16px;
    right: 16px;
    transform: none;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }
  
  .batch-action-info {
    padding-right: 0;
    border-right: none;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--glass-border);
    width: 100%;
    justify-content: center;
  }
  
  .batch-action-buttons {
    flex-wrap: wrap;
    justify-content: center;
  }
}